dwc2 counterpart of previous patch

The way we currently use portstatus always uses
enable=1 and we use it for its reset side effect.
Change confusing name and remove unused parameter.

Makefile.util.def

@@ -172,6 +172,8 @@ program = {
 
   common = util/grub-mkimage.c;
   common = util/mkimage.c;
+  common = util/grub-mkimage32.c;
+  common = util/grub-mkimage64.c;
   common = util/resolve.c;
   common = grub-core/kern/emu/argp_common.c;
   common = grub-core/osdep/init.c;
@@ -510,6 +512,8 @@ program = {
   common = util/render-label.c;
   common = util/glue-efi.c;
   common = util/mkimage.c;
+  common = util/grub-mkimage32.c;
+  common = util/grub-mkimage64.c;
   common = util/grub-install-common.c;
   common = util/setup_bios.c;
   common = util/setup_sparc.c;
@@ -552,6 +556,8 @@ program = {
   common = util/render-label.c;
   common = util/glue-efi.c;
   common = util/mkimage.c;
+  common = util/grub-mkimage32.c;
+  common = util/grub-mkimage64.c;
   common = util/grub-install-common.c;
   common = util/setup_bios.c;
   common = util/setup_sparc.c;
@@ -595,6 +601,8 @@ program = {
   common = util/grub-install.c;
   common = util/probe.c;
   common = util/mkimage.c;
+  common = util/grub-mkimage32.c;
+  common = util/grub-mkimage64.c;
   common = util/grub-install-common.c;
   common = util/setup_bios.c;
   common = util/setup_sparc.c;
@@ -632,6 +640,8 @@ program = {
   common = util/grub-mknetdir.c;
 
   common = util/mkimage.c;
+  common = util/grub-mkimage32.c;
+  common = util/grub-mkimage64.c;
   common = util/grub-install-common.c;
   common = util/setup_bios.c;
   common = util/setup_sparc.c;

conf/Makefile.common

@@ -86,9 +86,11 @@ CPPFLAGS_TERMINAL_LIST += '-Dgrub_term_register_output(...)=OUTPUT_TERMINAL_LIST
 CPPFLAGS_COMMAND_LIST = '-Dgrub_register_command(...)=COMMAND_LIST_MARKER(__VA_ARGS__)'
 CPPFLAGS_COMMAND_LIST += '-Dgrub_register_extcmd(...)=EXTCOMMAND_LIST_MARKER(__VA_ARGS__)'
 CPPFLAGS_COMMAND_LIST += '-Dgrub_register_command_p1(...)=P1COMMAND_LIST_MARKER(__VA_ARGS__)'
+CPPFLAGS_FDT_LIST := '-Dgrub_fdtbus_register(...)=FDT_DRIVER_LIST_MARKER(__VA_ARGS__)'
 CPPFLAGS_MARKER = $(CPPFLAGS_FS_LIST) $(CPPFLAGS_VIDEO_LIST) \
 	$(CPPFLAGS_PARTTOOL_LIST) $(CPPFLAGS_PARTMAP_LIST) \
-	$(CPPFLAGS_TERMINAL_LIST) $(CPPFLAGS_COMMAND_LIST)
+	$(CPPFLAGS_TERMINAL_LIST) $(CPPFLAGS_COMMAND_LIST) \
+	$(CPPFLAGS_FDT_LIST)
 
 # Define these variables to calm down automake
 

configure.ac

@@ -167,6 +167,7 @@ case "$target_cpu"-"$platform" in
   mipsel-fuloong) platform=loongson ;;
   mipsel-loongson) ;;
   arm-uboot) ;;
+  arm-coreboot) ;;
   arm-efi) ;;
   arm64-efi) ;;
   *-emu) ;;
@@ -1872,6 +1873,7 @@ AM_CONDITIONAL([COND_mipsel], [test x$target_cpu = xmipsel])
 AM_CONDITIONAL([COND_mipseb], [test x$target_cpu = xmips])
 AM_CONDITIONAL([COND_arm], [test x$target_cpu = xarm ])
 AM_CONDITIONAL([COND_arm_uboot], [test x$target_cpu = xarm -a x$platform = xuboot])
+AM_CONDITIONAL([COND_arm_coreboot], [test x$target_cpu = xarm -a x$platform = xcoreboot])
 AM_CONDITIONAL([COND_arm_efi], [test x$target_cpu = xarm -a x$platform = xefi])
 AM_CONDITIONAL([COND_arm64], [test x$target_cpu = xarm64 ])
 AM_CONDITIONAL([COND_arm64_efi], [test x$target_cpu = xarm64 -a x$platform = xefi])

gentpl.py

@@ -31,7 +31,8 @@ GRUB_PLATFORMS = [ "emu", "i386_pc", "i386_efi", "i386_qemu", "i386_coreboot",
                    "i386_xen", "x86_64_xen",
                    "mips_loongson", "sparc64_ieee1275",
                    "powerpc_ieee1275", "mips_arc", "ia64_efi",
-                   "mips_qemu_mips", "arm_uboot", "arm_efi", "arm64_efi" ]
+                   "mips_qemu_mips", "arm_uboot", "arm_efi", "arm64_efi",
+                   "arm_coreboot"]
 
 GROUPS = {}
 
@@ -44,7 +45,7 @@ GROUPS["x86"]      = GROUPS["i386"] + GROUPS["x86_64"]
 GROUPS["mips"]     = [ "mips_loongson", "mips_qemu_mips", "mips_arc" ]
 GROUPS["sparc64"]  = [ "sparc64_ieee1275" ]
 GROUPS["powerpc"]  = [ "powerpc_ieee1275" ]
-GROUPS["arm"]      = [ "arm_uboot", "arm_efi" ]
+GROUPS["arm"]      = [ "arm_uboot", "arm_efi", "arm_coreboot" ]
 GROUPS["arm64"]    = [ "arm64_efi" ]
 
 # Groups based on firmware
@@ -52,6 +53,7 @@ GROUPS["efi"]  = [ "i386_efi", "x86_64_efi", "ia64_efi", "arm_efi", "arm64_efi"
 GROUPS["ieee1275"]   = [ "i386_ieee1275", "sparc64_ieee1275", "powerpc_ieee1275" ]
 GROUPS["uboot"] = [ "arm_uboot" ]
 GROUPS["xen"]  = [ "i386_xen", "x86_64_xen" ]
+GROUPS["coreboot"]  = [ "i386_coreboot", "arm_coreboot" ]
 
 # emu is a special case so many core functionality isn't needed on this platform
 GROUPS["noemu"]   = GRUB_PLATFORMS[:]; GROUPS["noemu"].remove("emu")
@@ -61,10 +63,10 @@ GROUPS["cmos"] = GROUPS["x86"][:] + ["mips_loongson", "mips_qemu_mips",
                                      "sparc64_ieee1275", "powerpc_ieee1275"]
 GROUPS["cmos"].remove("i386_efi"); GROUPS["cmos"].remove("x86_64_efi");
 GROUPS["pci"]      = GROUPS["x86"] + ["mips_loongson"]
-GROUPS["usb"]      = GROUPS["pci"]
+GROUPS["usb"]      = GROUPS["pci"] + ["arm_coreboot"]
 
 # If gfxterm is main output console integrate it into kernel
-GROUPS["videoinkernel"] = ["mips_loongson", "i386_coreboot" ]
+GROUPS["videoinkernel"] = ["mips_loongson", "i386_coreboot", "arm_coreboot" ]
 GROUPS["videomodules"]   = GRUB_PLATFORMS[:];
 for i in GROUPS["videoinkernel"]: GROUPS["videomodules"].remove(i)
 

grub-core/Makefile.am

@@ -112,7 +112,7 @@ endif
 
 if COND_i386_coreboot
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/tsc.h
-KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/coreboot/lbio.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/coreboot/lbio.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/video.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/video_fb.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/gfxterm.h
@@ -239,6 +239,20 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/lib/arg.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/arm/system.h
 endif
 
+if COND_arm_coreboot
+KERNEL_HEADER_FILES += $(top_builddir)/include/grub/keyboard_layouts.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/arm/system.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/video.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/video_fb.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/gfxterm.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/font.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/bufio.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/fdt.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/dma.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/arm/coreboot/kernel.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/fdtbus.h
+endif
+
 if COND_arm_efi
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/arm/efi/loader.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/efi.h
@@ -358,6 +372,16 @@ terminal.lst: $(MARKER_FILES)
 platform_DATA += terminal.lst
 CLEANFILES += terminal.lst
 
+fdt.lst: $(MARKER_FILES)
+	(for pp in $^; do \
+	  b=`basename $$pp .marker`; \
+	  sed -n \
+	    -e "/FDT_DRIVER_LIST_MARKER *( *\"/{s/.*( *\"\([^\"]*\)\".*/i\1: $$b/;p;}" \
+	    -e "/FDT_DRIVER_LIST_MARKER *( *\"/{s/.*( *\"\([^\"]*\)\".*/o\1: $$b/;p;}" $$pp; \
+	done) | sort -u > $@
+platform_DATA += fdt.lst
+CLEANFILES += fdt.lst
+
 parttool.lst: $(MARKER_FILES)
 	(for pp in $^; do \
 	  b=`basename $$pp .marker`; \

grub-core/Makefile.core.def

@@ -90,8 +90,10 @@ kernel = {
   i386_qemu_cppflags     = '-DGRUB_BOOT_MACHINE_LINK_ADDR=$(GRUB_BOOT_MACHINE_LINK_ADDR)';
   emu_cflags = '$(CFLAGS_GNULIB)';
   emu_cppflags = '$(CPPFLAGS_GNULIB)';
-  arm_uboot_ldflags       = '-Wl,-Ttext=0x08000000';
+  arm_uboot_ldflags       = '-Wl,-r,-d';
   arm_uboot_stripflags    = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version';
+  arm_coreboot_ldflags       = '-Wl,-r,-d';
+  arm_coreboot_stripflags    = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version';
 
   i386_pc_startup = kern/i386/pc/startup.S;
   i386_efi_startup = kern/i386/efi/startup.S;
@@ -105,7 +107,8 @@ kernel = {
   mips_startup = kern/mips/startup.S;
   sparc64_ieee1275_startup = kern/sparc64/ieee1275/crt0.S;
   powerpc_ieee1275_startup = kern/powerpc/ieee1275/startup.S;
-  arm_uboot_startup = kern/arm/uboot/startup.S;
+  arm_uboot_startup = kern/arm/startup.S;
+  arm_coreboot_startup = kern/arm/startup.S;
   arm_efi_startup = kern/arm/efi/startup.S;
   arm64_efi_startup = kern/arm64/efi/startup.S;
 
@@ -149,6 +152,20 @@ kernel = {
   uboot = kern/uboot/init.c;
   uboot = kern/uboot/hw.c;
   uboot = term/uboot/console.c;
+  arm_uboot = kern/arm/uboot/init.c;
+  arm_uboot = kern/arm/uboot/uboot.S;
+
+  arm_coreboot = kern/arm/coreboot/init.c;
+  arm_coreboot = kern/arm/coreboot/timer.c;
+  arm_coreboot = kern/arm/coreboot/coreboot.S;
+  arm_coreboot = lib/fdt.c;
+  arm_coreboot = bus/fdt.c;
+  arm_coreboot = term/ps2.c;
+  arm_coreboot = term/arm/pl050.c;
+  arm_coreboot = term/arm/cros.c;
+  arm_coreboot = term/arm/cros_ec.c;
+  arm_coreboot = commands/keylayouts.c;
+  arm_coreboot = kern/arm/coreboot/dma.c;
 
   terminfoinkernel = term/terminfo.c;
   terminfoinkernel = term/tparm.c;
@@ -164,7 +181,7 @@ kernel = {
   i386_multiboot = kern/i386/coreboot/init.c;
   i386_qemu = kern/i386/qemu/init.c;
   i386_coreboot_multiboot_qemu = term/i386/pc/vga_text.c;
-  i386_coreboot = video/i386/coreboot/cbfb.c;
+  coreboot = video/coreboot/cbfb.c;
 
   efi = disk/efi/efidisk.c;
   efi = kern/efi/efi.c;
@@ -223,8 +240,9 @@ kernel = {
   i386_qemu = kern/vga_init.c;
   i386_qemu = kern/i386/qemu/mmap.c;
 
-  i386_coreboot = kern/i386/coreboot/mmap.c;
+  coreboot = kern/coreboot/mmap.c;
   i386_coreboot = kern/i386/coreboot/cbtable.c;
+  arm_coreboot = kern/arm/coreboot/cbtable.c;
 
   i386_multiboot = kern/i386/multiboot_mmap.c;
 
@@ -236,6 +254,7 @@ kernel = {
   mips_qemu_mips = term/ns8250.c;
   mips_qemu_mips = term/serial.c;
   mips_qemu_mips = term/at_keyboard.c;
+  mips_qemu_mips = term/ps2.c;
   mips_qemu_mips = commands/boot.c;
   mips_qemu_mips = commands/keylayouts.c;
   mips_qemu_mips = term/i386/pc/vga_text.c;
@@ -251,6 +270,7 @@ kernel = {
   mips_loongson = bus/pci.c;
   mips_loongson = kern/mips/loongson/init.c;
   mips_loongson = term/at_keyboard.c;
+  mips_loongson = term/ps2.c;
   mips_loongson = commands/boot.c;
   mips_loongson = term/serial.c;
   mips_loongson = video/sm712.c;
@@ -572,7 +592,17 @@ module = {
 module = {
   name = ehci;
   common = bus/usb/ehci.c;
+  arm_coreboot = bus/usb/ehci-fdt.c;
+  pci = bus/usb/ehci-pci.c;
   enable = pci;
+  enable = arm_coreboot;
+};
+
+module = {
+  name = dwc2;
+  common = bus/usb/dwc2.c;
+  arm_coreboot = bus/usb/dwc2-fdt.c;
+  enable = arm_coreboot;
 };
 
 module = {
@@ -752,6 +782,7 @@ module = {
   enable = arm_efi;
   enable = arm64_efi;
   enable = arm_uboot;
+  enable = arm_coreboot;
 };
 
 module = {
@@ -819,7 +850,7 @@ module = {
   common = commands/gptsync.c;
 };
 
-module = {
+/*module = {
   name = halt;
   nopc = commands/halt.c;
   i386_pc = commands/i386/pc/halt.c;
@@ -854,7 +885,7 @@ module = {
   xen = lib/xen/reboot.c;
   uboot = lib/uboot/reboot.c;
   common = commands/reboot.c;
-};
+};*/
 
 module = {
   name = hashsum;
@@ -1546,6 +1577,7 @@ module = {
   cmos = lib/cmos_datetime.c;
   efi = lib/efi/datetime.c;
   uboot = lib/uboot/datetime.c;
+  arm_coreboot = lib/uboot/datetime.c;
   sparc64_ieee1275 = lib/ieee1275/datetime.c;
   powerpc_ieee1275 = lib/ieee1275/datetime.c;
   sparc64_ieee1275 = lib/ieee1275/cmos.c;
@@ -1866,6 +1898,7 @@ module = {
 module = {
   name = at_keyboard;
   common = term/at_keyboard.c;
+  common = term/ps2.c;
   enable = x86;
 };
 

grub-core/bus/fdt.c

@@ -0,0 +1,255 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2016  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/fdtbus.h>
+#include <grub/fdt.h>
+#include <grub/term.h>
+
+static const void *dtb;
+static grub_size_t root_address_cells, root_size_cells;
+/* Pointer to this symbol signals invalid mapping.  */
+char grub_fdtbus_invalid_mapping[1];
+
+struct grub_fdtbus_dev
+{
+  struct grub_fdtbus_dev *next;
+  struct grub_fdtbus_dev *parent;
+  int node;
+  struct grub_fdtbus_driver *driver;
+};
+
+struct grub_fdtbus_dev *devs;
+struct grub_fdtbus_driver *drivers;
+
+static int
+is_compatible (struct grub_fdtbus_driver *driver,
+	       int node)
+{
+  grub_size_t compatible_size;
+  const char *compatible = grub_fdt_get_prop (dtb, node, "compatible",
+					      &compatible_size);
+  const char *compatible_end = compatible + compatible_size;
+  while (compatible < compatible_end)
+    {
+      if (grub_strcmp (driver->compatible, compatible) == 0)
+	return 1;
+      compatible += grub_strlen (compatible) + 1;
+    }
+  return 0;
+}
+
+static void
+fdtbus_scan (struct grub_fdtbus_dev *parent)
+{
+  int node;
+  for (node = grub_fdt_first_node (dtb, parent ? parent->node : 0); node >= 0;
+       node = grub_fdt_next_node (dtb, node))
+    {
+      struct grub_fdtbus_dev *dev;
+      struct grub_fdtbus_driver *driver;
+      dev = grub_zalloc (sizeof (*dev));
+      if (!dev)
+	{
+	  grub_print_error ();
+	  return;
+	}
+      dev->node = node;
+      dev->next = devs;
+      dev->parent = parent;
+      devs = dev;
+      FOR_LIST_ELEMENTS(driver, drivers)
+	if (!dev->driver && is_compatible (driver, node))
+	  {
+	    if (driver->attach(dev) == GRUB_ERR_NONE)
+	      {
+		dev->driver = driver;
+		break;
+	      }
+	    grub_print_error ();
+	  }
+      fdtbus_scan (dev);
+    }
+}
+
+void
+grub_fdtbus_register (struct grub_fdtbus_driver *driver)
+{
+  struct grub_fdtbus_dev *dev;
+  grub_list_push (GRUB_AS_LIST_P (&drivers),
+		  GRUB_AS_LIST (driver));
+  for (dev = devs; dev; dev = dev->next)
+    if (!dev->driver && is_compatible (driver, dev->node))
+      {
+	if (driver->attach(dev) == GRUB_ERR_NONE)
+	  dev->driver = driver;
+	grub_print_error ();
+      }
+}
+
+void
+grub_fdtbus_unregister (struct grub_fdtbus_driver *driver)
+{
+  grub_list_remove (GRUB_AS_LIST (driver));
+  struct grub_fdtbus_dev *dev;
+  for (dev = devs; dev; dev = dev->next)
+    if (dev->driver == driver)
+      {
+	if (driver->detach)
+	  driver->detach(dev);
+	dev->driver = 0;
+      }
+}
+
+void
+grub_fdtbus_init (const void *dtb_in, grub_size_t size)
+{
+  if (!dtb_in || grub_fdt_check_header (dtb_in, size) < 0)
+    grub_fatal ("invalid FDT");
+  dtb = dtb_in;
+  const grub_uint32_t *prop = grub_fdt_get_prop (dtb, 0, "#address-cells", 0);
+  if (prop)
+    root_address_cells = grub_be_to_cpu32 (*prop);
+  else
+    root_address_cells = 1;
+
+  prop = grub_fdt_get_prop (dtb, 0, "#size-cells", 0);
+  if (prop)
+    root_size_cells = grub_be_to_cpu32 (*prop);
+  else
+    root_size_cells = 1;
+
+  fdtbus_scan (0);
+}
+
+static int
+get_address_cells (const struct grub_fdtbus_dev *dev)
+{
+  const grub_uint32_t *prop;
+  if (!dev)
+    return root_address_cells;
+  prop = grub_fdt_get_prop (dtb, dev->node, "#address-cells", 0);
+  if (prop)
+    return grub_be_to_cpu32 (*prop);
+  return 1;
+}
+
+static int
+get_size_cells (const struct grub_fdtbus_dev *dev)
+{
+  const grub_uint32_t *prop;
+  if (!dev)
+    return root_size_cells;
+  prop = grub_fdt_get_prop (dtb, dev->node, "#size-cells", 0);
+  if (prop)
+    return grub_be_to_cpu32 (*prop);
+  return 1;
+}
+
+static grub_uint64_t
+get64 (const grub_uint32_t *reg, grub_size_t cells)
+{
+  grub_uint64_t val = 0;
+  if (cells >= 1)
+    val = grub_be_to_cpu32 (reg[cells - 1]);
+  if (cells >= 2)
+    val |= ((grub_uint64_t) grub_be_to_cpu32 (reg[cells - 2])) << 32;
+  return val;
+}
+
+static volatile void *
+translate (const struct grub_fdtbus_dev *dev, const grub_uint32_t *reg)
+{
+  volatile void *ret;
+  const grub_uint32_t *ranges;
+  grub_size_t ranges_size, cells_per_mapping;
+  grub_size_t parent_address_cells, child_address_cells, child_size_cells;
+  grub_size_t nmappings, i;
+  if (dev == 0)
+    {
+      grub_uint64_t val;
+      val = get64 (reg, root_address_cells);
+      if (sizeof (void *) == 4 && (val >> 32))
+	return grub_fdtbus_invalid_mapping;
+      return (void *) (grub_addr_t) val;
+    }
+  ranges = grub_fdt_get_prop (dtb, dev->node, "ranges", &ranges_size);
+  if (!ranges)
+    return grub_fdtbus_invalid_mapping;
+  if (ranges_size == 0)
+    return translate (dev->parent, reg);
+  parent_address_cells = get_address_cells (dev->parent);
+  child_address_cells = get_address_cells (dev);
+  child_size_cells = get_size_cells (dev);
+  cells_per_mapping = parent_address_cells + child_address_cells + child_size_cells;
+  nmappings = ranges_size / 4 / cells_per_mapping;
+  for (i = 0; i < nmappings; i++)
+    {
+      const grub_uint32_t *child_addr = &ranges[i * cells_per_mapping];
+      const grub_uint32_t *parent_addr = child_addr + child_address_cells;
+      grub_uint64_t child_size = get64 (parent_addr + parent_address_cells, child_size_cells);
+
+      if (child_address_cells > 2 && grub_memcmp (reg, child_addr, (child_address_cells - 2) * 4) != 0)
+	continue;
+      if (get64 (reg, child_address_cells) < get64 (child_addr, child_address_cells))
+	continue;
+
+      grub_uint64_t offset = get64 (reg, child_address_cells) - get64 (child_addr, child_address_cells);
+      if (offset >= child_size)
+	continue;
+
+      ret = translate (dev->parent, parent_addr);
+      if (grub_fdtbus_is_mapping_valid (ret))
+	ret = (volatile char *) ret + offset;
+      return ret;
+    }
+  return grub_fdtbus_invalid_mapping;
+}
+
+volatile void *
+grub_fdtbus_map_reg (const struct grub_fdtbus_dev *dev, int regno, grub_size_t *size)
+{
+  grub_size_t address_cells, size_cells;
+  address_cells = get_address_cells (dev->parent);
+  size_cells = get_size_cells (dev->parent);
+  const grub_uint32_t *reg = grub_fdt_get_prop (dtb, dev->node, "reg", 0);
+  if (size && size_cells)
+    *size = reg[(address_cells + size_cells) * regno + address_cells];
+  if (size && !size_cells)
+    *size = 0;
+  return translate (dev->parent, reg + (address_cells + size_cells) * regno);
+}
+
+const char *
+grub_fdtbus_get_name (const struct grub_fdtbus_dev *dev)
+{
+  return grub_fdt_get_nodename (dtb, dev->node);
+}
+
+const void *
+grub_fdtbus_get_prop (const struct grub_fdtbus_dev *dev,
+		      const char *name,
+		      grub_uint32_t *len)
+{
+  return grub_fdt_get_prop (dtb, dev->node, name, len);
+}
+
+const void *
+grub_fdtbus_get_fdt (void)
+{
+  return dtb;
+}

grub-core/bus/usb/dwc2-fdt.c

@@ -0,0 +1,45 @@
+/* ehci.c - EHCI Support.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2011  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/usb.h>
+#include <grub/fdtbus.h>
+
+static grub_err_t
+dwc2_attach(const struct grub_fdtbus_dev *dev)
+{
+  grub_dprintf ("dwc2", "Found snps-dwc2\n");
+
+  grub_dwc2_init_device (grub_fdtbus_map_reg (dev, 0, 0));
+  return 0;
+}
+
+struct grub_fdtbus_driver dwc2 =
+{
+  .compatible = "snps,dwc2",
+  .attach = dwc2_attach
+};
+
+void
+grub_dwc2_pci_scan (void)
+{
+  grub_fdtbus_register (&dwc2);
+}

grub-core/bus/usb/ehci-fdt.c

@@ -0,0 +1,45 @@
+/* ehci.c - EHCI Support.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2011  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/usb.h>
+#include <grub/fdtbus.h>
+
+static grub_err_t
+ehci_attach(const struct grub_fdtbus_dev *dev)
+{
+  grub_dprintf ("ehci", "Found generic-ehci\n");
+
+  grub_ehci_init_device (grub_fdtbus_map_reg (dev, 0, 0));
+  return 0;
+}
+
+struct grub_fdtbus_driver ehci =
+{
+  .compatible = "generic-ehci",
+  .attach = ehci_attach
+};
+
+void
+grub_ehci_pci_scan (void)
+{
+  grub_fdtbus_register (&ehci);
+}

grub-core/bus/usb/ehci-pci.c

@@ -0,0 +1,208 @@
+/* ehci.c - EHCI Support.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2011  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/pci.h>
+#include <grub/cpu/pci.h>
+#include <grub/cs5536.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/usb.h>
+
+#define GRUB_EHCI_PCI_SBRN_REG  0x60
+#define GRUB_EHCI_ADDR_MEM_MASK	(~0xff)
+
+/* USBLEGSUP bits and related OS OWNED byte offset */
+enum
+{
+  GRUB_EHCI_BIOS_OWNED = (1 << 16),
+  GRUB_EHCI_OS_OWNED = (1 << 24)
+};
+
+/* PCI iteration function... */
+static int
+grub_ehci_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
+		    void *data __attribute__ ((unused)))
+{
+  volatile grub_uint32_t *regs;
+  grub_uint32_t base, base_h;
+  grub_uint32_t eecp_offset;
+  grub_uint32_t usblegsup = 0;
+  grub_uint64_t maxtime;
+  grub_uint32_t interf;
+  grub_uint32_t subclass;
+  grub_uint32_t class;
+  grub_uint8_t release;
+  grub_uint32_t class_code;
+
+  grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: begin\n");
+
+  if (pciid == GRUB_CS5536_PCIID)
+    {
+      grub_uint64_t basereg;
+
+      basereg = grub_cs5536_read_msr (dev, GRUB_CS5536_MSR_USB_EHCI_BASE);
+      if (!(basereg & GRUB_CS5536_MSR_USB_BASE_MEMORY_ENABLE))
+	{
+	  /* Shouldn't happen.  */
+	  grub_dprintf ("ehci", "No EHCI address is assigned\n");
+	  return 0;
+	}
+      base = (basereg & GRUB_CS5536_MSR_USB_BASE_ADDR_MASK);
+      basereg |= GRUB_CS5536_MSR_USB_BASE_BUS_MASTER;
+      basereg &= ~GRUB_CS5536_MSR_USB_BASE_PME_ENABLED;
+      basereg &= ~GRUB_CS5536_MSR_USB_BASE_PME_STATUS;
+      basereg &= ~GRUB_CS5536_MSR_USB_BASE_SMI_ENABLE;
+      grub_cs5536_write_msr (dev, GRUB_CS5536_MSR_USB_EHCI_BASE, basereg);
+    }
+  else
+    {
+      grub_pci_address_t addr;
+      addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
+      class_code = grub_pci_read (addr) >> 8;
+      interf = class_code & 0xFF;
+      subclass = (class_code >> 8) & 0xFF;
+      class = class_code >> 16;
+
+      /* If this is not an EHCI controller, just return.  */
+      if (class != 0x0c || subclass != 0x03 || interf != 0x20)
+	return 0;
+
+      grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: class OK\n");
+
+      /* Check Serial Bus Release Number */
+      addr = grub_pci_make_address (dev, GRUB_EHCI_PCI_SBRN_REG);
+      release = grub_pci_read_byte (addr);
+      if (release != 0x20)
+	{
+	  grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: Wrong SBRN: %0x\n",
+			release);
+	  return 0;
+	}
+      grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: bus rev. num. OK\n");
+  
+      /* Determine EHCI EHCC registers base address.  */
+      addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
+      base = grub_pci_read (addr);
+      addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG1);
+      base_h = grub_pci_read (addr);
+      /* Stop if registers are mapped above 4G - GRUB does not currently
+       * work with registers mapped above 4G */
+      if (((base & GRUB_PCI_ADDR_MEM_TYPE_MASK) != GRUB_PCI_ADDR_MEM_TYPE_32)
+	  && (base_h != 0))
+	{
+	  grub_dprintf ("ehci",
+			"EHCI grub_ehci_pci_iter: registers above 4G are not supported\n");
+	  return 0;
+	}
+      base &= GRUB_PCI_ADDR_MEM_MASK;
+      if (!base)
+	{
+	  grub_dprintf ("ehci",
+			"EHCI: EHCI is not mapped\n");
+	  return 0;
+	}
+
+      /* Set bus master - needed for coreboot, VMware, broken BIOSes etc. */
+      addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
+      grub_pci_write_word(addr,
+			  GRUB_PCI_COMMAND_MEM_ENABLED
+			  | GRUB_PCI_COMMAND_BUS_MASTER
+			  | grub_pci_read_word(addr));
+      
+      grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: 32-bit EHCI OK\n");
+    }
+
+  grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: iobase of EHCC: %08x\n",
+		(base & GRUB_EHCI_ADDR_MEM_MASK));
+
+  regs = grub_pci_device_map_range (dev,
+				    (base & GRUB_EHCI_ADDR_MEM_MASK),
+				    0x100);
+
+  /* Is there EECP ? */
+  eecp_offset = (grub_le_to_cpu32 (regs[2]) >> 8) & 0xff;
+
+    /* Determine and change ownership. */
+  /* EECP offset valid in HCCPARAMS */
+  /* Ownership can be changed via EECP only */
+  if (pciid != GRUB_CS5536_PCIID && eecp_offset >= 0x40)	
+    {
+      grub_pci_address_t pciaddr_eecp;
+      pciaddr_eecp = grub_pci_make_address (dev, eecp_offset);
+
+      usblegsup = grub_pci_read (pciaddr_eecp);
+      if (usblegsup & GRUB_EHCI_BIOS_OWNED)
+	{
+	  grub_boot_time ("Taking ownership of EHCI controller");
+	  grub_dprintf ("ehci",
+			"EHCI grub_ehci_pci_iter: EHCI owned by: BIOS\n");
+	  /* Ownership change - set OS_OWNED bit */
+	  grub_pci_write (pciaddr_eecp, usblegsup | GRUB_EHCI_OS_OWNED);
+	  /* Ensure PCI register is written */
+	  grub_pci_read (pciaddr_eecp);
+
+	  /* Wait for finish of ownership change, EHCI specification
+	   * doesn't say how long it can take... */
+	  maxtime = grub_get_time_ms () + 1000;
+	  while ((grub_pci_read (pciaddr_eecp) & GRUB_EHCI_BIOS_OWNED)
+		 && (grub_get_time_ms () < maxtime));
+	  if (grub_pci_read (pciaddr_eecp) & GRUB_EHCI_BIOS_OWNED)
+	    {
+	      grub_dprintf ("ehci",
+			    "EHCI grub_ehci_pci_iter: EHCI change ownership timeout");
+	      /* Change ownership in "hard way" - reset BIOS ownership */
+	      grub_pci_write (pciaddr_eecp, GRUB_EHCI_OS_OWNED);
+	      /* Ensure PCI register is written */
+	      grub_pci_read (pciaddr_eecp);
+	    }
+	}
+      else if (usblegsup & GRUB_EHCI_OS_OWNED)
+	/* XXX: What to do in this case - nothing ? Can it happen ? */
+	grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: EHCI owned by: OS\n");
+      else
+	{
+	  grub_dprintf ("ehci",
+			"EHCI grub_ehci_pci_iter: EHCI owned by: NONE\n");
+	  /* XXX: What to do in this case ? Can it happen ?
+	   * Is code below correct ? */
+	  /* Ownership change - set OS_OWNED bit */
+	  grub_pci_write (pciaddr_eecp, GRUB_EHCI_OS_OWNED);
+	  /* Ensure PCI register is written */
+	  grub_pci_read (pciaddr_eecp);
+	}
+
+      /* Disable SMI, just to be sure.  */
+      pciaddr_eecp = grub_pci_make_address (dev, eecp_offset + 4);
+      grub_pci_write (pciaddr_eecp, 0);
+      /* Ensure PCI register is written */
+      grub_pci_read (pciaddr_eecp);
+    }
+
+  grub_dprintf ("ehci", "inithw: EHCI grub_ehci_pci_iter: ownership OK\n");
+
+  grub_ehci_init_device (regs);
+  return 0;
+}
+
+void
+grub_ehci_pci_scan (void)
+{
+  grub_pci_iterate (grub_ehci_pci_iter, NULL);
+}

grub-core/bus/usb/ehci.c

@@ -22,13 +22,11 @@
 #include <grub/usb.h>
 #include <grub/usbtrans.h>
 #include <grub/misc.h>
-#include <grub/pci.h>
-#include <grub/cpu/pci.h>
-#include <grub/cpu/io.h>
 #include <grub/time.h>
 #include <grub/loader.h>
-#include <grub/cs5536.h>
 #include <grub/disk.h>
+#include <grub/dma.h>
+#include <grub/cache.h>
 
 GRUB_MOD_LICENSE ("GPLv3+");
 
@@ -38,8 +36,6 @@ GRUB_MOD_LICENSE ("GPLv3+");
  *      - is not supporting interrupt transfers
  */
 
-#define GRUB_EHCI_PCI_SBRN_REG  0x60
-
 /* Capability registers offsets */
 enum
 {
@@ -53,7 +49,6 @@ enum
 #define GRUB_EHCI_EECP_MASK     (0xff << 8)
 #define GRUB_EHCI_EECP_SHIFT    8
 
-#define GRUB_EHCI_ADDR_MEM_MASK	(~0xff)
 #define GRUB_EHCI_POINTER_MASK	(~0x1f)
 
 /* Capability register SPARAMS bits */
@@ -84,13 +79,6 @@ enum
 
 #define GRUB_EHCI_QH_EMPTY 1
 
-/* USBLEGSUP bits and related OS OWNED byte offset */
-enum
-{
-  GRUB_EHCI_BIOS_OWNED = (1 << 16),
-  GRUB_EHCI_OS_OWNED = (1 << 24)
-};
-
 /* Operational registers offsets */
 enum
 {
@@ -337,6 +325,21 @@ struct grub_ehci
 
 static struct grub_ehci *ehci;
 
+static void
+sync_all_caches (struct grub_ehci *e)
+{
+  if (!e)
+    return;
+  if (e->td_virt)
+    grub_arch_sync_dma_caches (e->td_virt, sizeof (struct grub_ehci_td) *
+			       GRUB_EHCI_N_TD);
+  if (e->qh_virt)
+    grub_arch_sync_dma_caches (e->qh_virt, sizeof (struct grub_ehci_qh) *
+			       GRUB_EHCI_N_QH);
+  if (e->framelist_virt)
+    grub_arch_sync_dma_caches (e->framelist_virt, 4096);
+}
+
 /* EHCC registers access functions */
 static inline grub_uint32_t
 grub_ehci_ehcc_read32 (struct grub_ehci *e, grub_uint32_t addr)
@@ -437,9 +440,12 @@ grub_ehci_reset (struct grub_ehci *e)
 {
   grub_uint64_t maxtime;
 
+  sync_all_caches (e);
+
+  grub_dprintf ("ehci", "reset\n");
+
   grub_ehci_oper_write32 (e, GRUB_EHCI_COMMAND,
-			  GRUB_EHCI_CMD_HC_RESET
+			  GRUB_EHCI_CMD_HC_RESET);
-			  | grub_ehci_oper_read32 (e, GRUB_EHCI_COMMAND));
   /* Ensure command is written */
   grub_ehci_oper_read32 (e, GRUB_EHCI_COMMAND);
   /* XXX: How long time could take reset of HC ? */
@@ -455,116 +461,24 @@ grub_ehci_reset (struct grub_ehci *e)
 }
 
 /* PCI iteration function... */
-static int
+void
-grub_ehci_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
+grub_ehci_init_device (volatile void *regs)
-		    void *data __attribute__ ((unused)))
 {
-  grub_uint8_t release;
-  grub_uint32_t class_code;
-  grub_uint32_t interf;
-  grub_uint32_t subclass;
-  grub_uint32_t class;
-  grub_uint32_t base, base_h;
   struct grub_ehci *e;
-  grub_uint32_t eecp_offset;
   grub_uint32_t fp;
   int i;
-  grub_uint32_t usblegsup = 0;
-  grub_uint64_t maxtime;
   grub_uint32_t n_ports;
   grub_uint8_t caplen;
 
-  grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: begin\n");
-
-  if (pciid == GRUB_CS5536_PCIID)
-    {
-      grub_uint64_t basereg;
-
-      basereg = grub_cs5536_read_msr (dev, GRUB_CS5536_MSR_USB_EHCI_BASE);
-      if (!(basereg & GRUB_CS5536_MSR_USB_BASE_MEMORY_ENABLE))
-	{
-	  /* Shouldn't happen.  */
-	  grub_dprintf ("ehci", "No EHCI address is assigned\n");
-	  return 0;
-	}
-      base = (basereg & GRUB_CS5536_MSR_USB_BASE_ADDR_MASK);
-      basereg |= GRUB_CS5536_MSR_USB_BASE_BUS_MASTER;
-      basereg &= ~GRUB_CS5536_MSR_USB_BASE_PME_ENABLED;
-      basereg &= ~GRUB_CS5536_MSR_USB_BASE_PME_STATUS;
-      basereg &= ~GRUB_CS5536_MSR_USB_BASE_SMI_ENABLE;
-      grub_cs5536_write_msr (dev, GRUB_CS5536_MSR_USB_EHCI_BASE, basereg);
-    }
-  else
-    {
-      grub_pci_address_t addr;
-      addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
-      class_code = grub_pci_read (addr) >> 8;
-      interf = class_code & 0xFF;
-      subclass = (class_code >> 8) & 0xFF;
-      class = class_code >> 16;
-
-      /* If this is not an EHCI controller, just return.  */
-      if (class != 0x0c || subclass != 0x03 || interf != 0x20)
-	return 0;
-
-      grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: class OK\n");
-
-      /* Check Serial Bus Release Number */
-      addr = grub_pci_make_address (dev, GRUB_EHCI_PCI_SBRN_REG);
-      release = grub_pci_read_byte (addr);
-      if (release != 0x20)
-	{
-	  grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: Wrong SBRN: %0x\n",
-			release);
-	  return 0;
-	}
-      grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: bus rev. num. OK\n");
-  
-      /* Determine EHCI EHCC registers base address.  */
-      addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
-      base = grub_pci_read (addr);
-      addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG1);
-      base_h = grub_pci_read (addr);
-      /* Stop if registers are mapped above 4G - GRUB does not currently
-       * work with registers mapped above 4G */
-      if (((base & GRUB_PCI_ADDR_MEM_TYPE_MASK) != GRUB_PCI_ADDR_MEM_TYPE_32)
-	  && (base_h != 0))
-	{
-	  grub_dprintf ("ehci",
-			"EHCI grub_ehci_pci_iter: registers above 4G are not supported\n");
-	  return 0;
-	}
-      base &= GRUB_PCI_ADDR_MEM_MASK;
-      if (!base)
-	{
-	  grub_dprintf ("ehci",
-			"EHCI: EHCI is not mapped\n");
-	  return 0;
-	}
-
-      /* Set bus master - needed for coreboot, VMware, broken BIOSes etc. */
-      addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
-      grub_pci_write_word(addr,
-			  GRUB_PCI_COMMAND_MEM_ENABLED
-			  | GRUB_PCI_COMMAND_BUS_MASTER
-			  | grub_pci_read_word(addr));
-      
-      grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: 32-bit EHCI OK\n");
-    }
-
   /* Allocate memory for the controller and fill basic values. */
   e = grub_zalloc (sizeof (*e));
   if (!e)
-    return 1;
+    return;
   e->framelist_chunk = NULL;
   e->td_chunk = NULL;
   e->qh_chunk = NULL;
-  e->iobase_ehcc = grub_pci_device_map_range (dev,
+  e->iobase_ehcc = regs;
-					      (base & GRUB_EHCI_ADDR_MEM_MASK),
-					      0x100);
 
-  grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: iobase of EHCC: %08x\n",
-		(base & GRUB_EHCI_ADDR_MEM_MASK));
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: CAPLEN: %02x\n",
 		grub_ehci_ehcc_read8 (e, GRUB_EHCI_EHCC_CAPLEN));
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: VERSION: %04x\n",
@@ -580,7 +494,7 @@ grub_ehci_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
   if (caplen & (sizeof (grub_uint32_t) - 1))
     {
       grub_dprintf ("ehci", "Unaligned caplen\n");
-      return 0;
+      return;
     }
   e->iobase = ((volatile grub_uint32_t *) e->iobase_ehcc
 	       + (caplen / sizeof (grub_uint32_t)));
@@ -591,7 +505,7 @@ grub_ehci_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
 
   grub_dprintf ("ehci",
 		"EHCI grub_ehci_pci_iter: iobase of oper. regs: %08x\n",
-		(base & GRUB_EHCI_ADDR_MEM_MASK) + caplen);
+		(grub_addr_t) e->iobase_ehcc + caplen);
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: COMMAND: %08x\n",
 		grub_ehci_oper_read32 (e, GRUB_EHCI_COMMAND));
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: STATUS: %08x\n",
@@ -607,10 +521,6 @@ grub_ehci_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: CONFIG_FLAG: %08x\n",
 		grub_ehci_oper_read32 (e, GRUB_EHCI_CONFIG_FLAG));
 
-  /* Is there EECP ? */
-  eecp_offset = (grub_ehci_ehcc_read32 (e, GRUB_EHCI_EHCC_CPARAMS)
-		 & GRUB_EHCI_EECP_MASK) >> GRUB_EHCI_EECP_SHIFT;
-
   /* Check format of data structures requested by EHCI */
   /* XXX: In fact it is not used at any place, it is prepared for future
    * This implementation uses 32-bits pointers only */
@@ -714,65 +624,6 @@ grub_ehci_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
 
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: QH/TD init. OK\n");
 
-  /* Determine and change ownership. */
-  /* EECP offset valid in HCCPARAMS */
-  /* Ownership can be changed via EECP only */
-  if (pciid != GRUB_CS5536_PCIID && eecp_offset >= 0x40)	
-    {
-      grub_pci_address_t pciaddr_eecp;
-      pciaddr_eecp = grub_pci_make_address (dev, eecp_offset);
-
-      usblegsup = grub_pci_read (pciaddr_eecp);
-      if (usblegsup & GRUB_EHCI_BIOS_OWNED)
-	{
-	  grub_boot_time ("Taking ownership of EHCI controller");
-	  grub_dprintf ("ehci",
-			"EHCI grub_ehci_pci_iter: EHCI owned by: BIOS\n");
-	  /* Ownership change - set OS_OWNED bit */
-	  grub_pci_write (pciaddr_eecp, usblegsup | GRUB_EHCI_OS_OWNED);
-	  /* Ensure PCI register is written */
-	  grub_pci_read (pciaddr_eecp);
-
-	  /* Wait for finish of ownership change, EHCI specification
-	   * doesn't say how long it can take... */
-	  maxtime = grub_get_time_ms () + 1000;
-	  while ((grub_pci_read (pciaddr_eecp) & GRUB_EHCI_BIOS_OWNED)
-		 && (grub_get_time_ms () < maxtime));
-	  if (grub_pci_read (pciaddr_eecp) & GRUB_EHCI_BIOS_OWNED)
-	    {
-	      grub_dprintf ("ehci",
-			    "EHCI grub_ehci_pci_iter: EHCI change ownership timeout");
-	      /* Change ownership in "hard way" - reset BIOS ownership */
-	      grub_pci_write (pciaddr_eecp, GRUB_EHCI_OS_OWNED);
-	      /* Ensure PCI register is written */
-	      grub_pci_read (pciaddr_eecp);
-	    }
-	}
-      else if (usblegsup & GRUB_EHCI_OS_OWNED)
-	/* XXX: What to do in this case - nothing ? Can it happen ? */
-	grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: EHCI owned by: OS\n");
-      else
-	{
-	  grub_dprintf ("ehci",
-			"EHCI grub_ehci_pci_iter: EHCI owned by: NONE\n");
-	  /* XXX: What to do in this case ? Can it happen ?
-	   * Is code below correct ? */
-	  /* Ownership change - set OS_OWNED bit */
-	  grub_pci_write (pciaddr_eecp, GRUB_EHCI_OS_OWNED);
-	  /* Ensure PCI register is written */
-	  grub_pci_read (pciaddr_eecp);
-	}
-
-    /* Disable SMI, just to be sure.  */
-    pciaddr_eecp = grub_pci_make_address (dev, eecp_offset + 4);
-    grub_pci_write (pciaddr_eecp, 0);
-    /* Ensure PCI register is written */
-    grub_pci_read (pciaddr_eecp);
-
-    }
-
-  grub_dprintf ("ehci", "inithw: EHCI grub_ehci_pci_iter: ownership OK\n");
-
   /* Now we can setup EHCI (maybe...) */
 
   /* Check if EHCI is halted and halt it if not */
@@ -840,11 +691,13 @@ grub_ehci_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
   e->next = ehci;
   ehci = e;
 
+  sync_all_caches (e);
+
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: OK at all\n");
 
   grub_dprintf ("ehci",
 		"EHCI grub_ehci_pci_iter: iobase of oper. regs: %08x\n",
-		(base & GRUB_EHCI_ADDR_MEM_MASK));
+		(grub_addr_t) regs);
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: COMMAND: %08x\n",
 		grub_ehci_oper_read32 (e, GRUB_EHCI_COMMAND));
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: STATUS: %08x\n",
@@ -860,7 +713,7 @@ grub_ehci_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
   grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: CONFIG_FLAG: %08x\n",
 		grub_ehci_oper_read32 (e, GRUB_EHCI_CONFIG_FLAG));
 
-  return 0;
+  return;
 
 fail:
   if (e)
@@ -874,7 +727,7 @@ fail:
     }
   grub_free (e);
 
-  return 0;
+  return;
 }
 
 static int
@@ -1020,6 +873,7 @@ grub_ehci_find_qh (struct grub_ehci *e, grub_usb_transfer_t transfer)
 	  /* Found proper existing (and linked) QH, do setup of QH */
 	  grub_dprintf ("ehci", "find_qh: found, QH=%p\n", qh_iter);
 	  grub_ehci_setup_qh (qh_iter, transfer);
+	  sync_all_caches (e);
 	  return qh_iter;
 	}
 
@@ -1289,16 +1143,28 @@ grub_ehci_setup_transfer (grub_usb_controller_t dev,
   grub_ehci_td_t td_prev = NULL;
   int i;
   struct grub_ehci_transfer_controller_data *cdata;
+  grub_uint32_t status;
+
+  sync_all_caches (e);
 
   /* Check if EHCI is running and AL is enabled */
-  if ((grub_ehci_oper_read32 (e, GRUB_EHCI_STATUS)
+  status = grub_ehci_oper_read32 (e, GRUB_EHCI_STATUS);
-       & GRUB_EHCI_ST_HC_HALTED) != 0)
+  if ((status & GRUB_EHCI_ST_HC_HALTED) != 0)
     /* XXX: Fix it: Currently we don't do anything to restart EHCI */
+    {
+      grub_dprintf ("ehci", "setup_transfer: halted, status = 0x%x\n",
+		    status);
       return GRUB_USB_ERR_INTERNAL;
-  if ((grub_ehci_oper_read32 (e, GRUB_EHCI_STATUS)
+    }
+  status = grub_ehci_oper_read32 (e, GRUB_EHCI_STATUS);
+  if ((status
        & (GRUB_EHCI_ST_AS_STATUS | GRUB_EHCI_ST_PS_STATUS)) == 0)
     /* XXX: Fix it: Currently we don't do anything to restart EHCI */
+    {
+      grub_dprintf ("ehci", "setup_transfer: no AS/PS, status = 0x%x\n",
+		    status);
       return GRUB_USB_ERR_INTERNAL;
+    }
 
   /* Allocate memory for controller transfer data.  */
   cdata = grub_malloc (sizeof (*cdata));
@@ -1310,6 +1176,7 @@ grub_ehci_setup_transfer (grub_usb_controller_t dev,
   cdata->qh_virt = grub_ehci_find_qh (e, transfer);
   if (!cdata->qh_virt)
     {
+      grub_dprintf ("ehci", "setup_transfer: no QH\n");
       grub_free (cdata);
       return GRUB_USB_ERR_INTERNAL;
     }
@@ -1319,6 +1186,7 @@ grub_ehci_setup_transfer (grub_usb_controller_t dev,
   cdata->td_alt_virt = grub_ehci_alloc_td (e);
   if (!cdata->td_alt_virt)
     {
+      grub_dprintf ("ehci", "setup_transfer: no TDs\n");
       grub_free (cdata);
       return GRUB_USB_ERR_INTERNAL;
     }
@@ -1345,6 +1213,7 @@ grub_ehci_setup_transfer (grub_usb_controller_t dev,
 	    grub_ehci_free_tds (e, cdata->td_first_virt, NULL, &actual);
 
 	  grub_free (cdata);
+	  grub_dprintf ("ehci", "setup_transfer: no TD\n");
 	  return GRUB_USB_ERR_INTERNAL;
 	}
 
@@ -1386,6 +1255,8 @@ grub_ehci_setup_transfer (grub_usb_controller_t dev,
    * i.e. reset token */
   cdata->qh_virt->td_overlay.token = grub_cpu_to_le32_compile_time (0);
 
+  sync_all_caches (e);
+
   /* Finito */
   transfer->controller_data = cdata;
 
@@ -1434,6 +1305,8 @@ grub_ehci_parse_notrun (grub_usb_controller_t dev,
   grub_ehci_free_td (e, cdata->td_alt_virt);
   grub_free (cdata);
 
+  sync_all_caches (e);
+
   /* Additionally, do something with EHCI to make it running (what?) */
   /* Try enable EHCI and AL */
   grub_ehci_oper_write32 (e, GRUB_EHCI_COMMAND,
@@ -1469,6 +1342,8 @@ grub_ehci_parse_halt (grub_usb_controller_t dev,
   grub_ehci_free_td (e, cdata->td_alt_virt);
   grub_free (cdata);
 
+  sync_all_caches (e);
+
   /* Evaluation of error code - currently we don't have GRUB USB error
    * codes for some EHCI states, GRUB_USB_ERR_DATA is used for them.
    * Order of evaluation is critical, specially bubble/stall. */
@@ -1502,6 +1377,8 @@ grub_ehci_parse_success (grub_usb_controller_t dev,
   grub_ehci_free_td (e, cdata->td_alt_virt);
   grub_free (cdata);
 
+  sync_all_caches (e);
+
   return GRUB_USB_ERR_NONE;
 }
 
@@ -1515,6 +1392,8 @@ grub_ehci_check_transfer (grub_usb_controller_t dev,
     transfer->controller_data;
   grub_uint32_t token, token_ftd;
 
+  sync_all_caches (e);
+
   grub_dprintf ("ehci",
 		"check_transfer: EHCI STATUS=%08x, cdata=%p, qh=%p\n",
 		grub_ehci_oper_read32 (e, GRUB_EHCI_STATUS),
@@ -1581,6 +1460,9 @@ grub_ehci_cancel_transfer (grub_usb_controller_t dev,
   int i;
   grub_uint64_t maxtime;
   grub_uint32_t qh_phys;
+
+  sync_all_caches (e);
+
   grub_uint32_t interrupt =
     cdata->qh_virt->ep_cap & GRUB_EHCI_SMASK_MASK;
 
@@ -1600,6 +1482,7 @@ grub_ehci_cancel_transfer (grub_usb_controller_t dev,
       grub_ehci_free_tds (e, cdata->td_first_virt, transfer, &actual);
       grub_ehci_free_td (e, cdata->td_alt_virt);
       grub_free (cdata);
+      sync_all_caches (e);
       grub_dprintf ("ehci", "cancel_transfer: end - EHCI not running\n");
       return GRUB_USB_ERR_NONE;
     }
@@ -1622,6 +1505,8 @@ grub_ehci_cancel_transfer (grub_usb_controller_t dev,
   /* Unlink QH from AL */
   e->qh_virt[i].qh_hptr = cdata->qh_virt->qh_hptr;
 
+  sync_all_caches (e);
+
   /* If this is an interrupt transfer, we just wait for the periodic
    * schedule to advance a few times and then assume that the EHCI
    * controller has read the updated QH. */
@@ -1676,6 +1561,8 @@ grub_ehci_cancel_transfer (grub_usb_controller_t dev,
 
   grub_dprintf ("ehci", "cancel_transfer: end\n");
 
+  sync_all_caches (e);
+
   return GRUB_USB_ERR_NONE;
 }
 
@@ -1692,8 +1579,8 @@ grub_ehci_hubports (grub_usb_controller_t dev)
 }
 
 static grub_usb_err_t
-grub_ehci_portstatus (grub_usb_controller_t dev,
+grub_ehci_reset_port (grub_usb_controller_t dev,
-		      unsigned int port, unsigned int enable)
+		      unsigned int port)
 {
   struct grub_ehci *e = (struct grub_ehci *) dev->data;
   grub_uint64_t endtime;
@@ -1715,14 +1602,6 @@ grub_ehci_portstatus (grub_usb_controller_t dev,
     if (grub_get_time_ms () > endtime)
       return GRUB_USB_ERR_TIMEOUT;
 
-  if (!enable)			/* We don't need reset port */
-    {
-      grub_dprintf ("ehci", "portstatus: Disabled.\n");
-      grub_dprintf ("ehci", "portstatus: end, status=0x%02x\n",
-		    grub_ehci_port_read (e, port));
-      return GRUB_USB_ERR_NONE;
-    }
-
   grub_dprintf ("ehci", "portstatus: enable\n");
 
   grub_boot_time ("Resetting port %d", port);
@@ -1777,11 +1656,6 @@ grub_ehci_detect_dev (grub_usb_controller_t dev, int port, int *changed)
 
   status = grub_ehci_port_read (e, port);
 
-  grub_dprintf ("ehci", "detect_dev: EHCI STATUS: %08x\n",
-		grub_ehci_oper_read32 (e, GRUB_EHCI_STATUS));
-  grub_dprintf ("ehci", "detect_dev: iobase=%p, port=%d, status=0x%02x\n",
-		e->iobase, port, status);
-
   /* Connect Status Change bit - it detects change of connection */
   if (status & GRUB_EHCI_PORT_CONNECT_CH)
     {
@@ -1842,12 +1716,6 @@ grub_ehci_detect_dev (grub_usb_controller_t dev, int port, int *changed)
     }
 }
 
-static void
-grub_ehci_inithw (void)
-{
-  grub_pci_iterate (grub_ehci_pci_iter, NULL);
-}
-
 static grub_err_t
 grub_ehci_restore_hw (void)
 {
@@ -1934,7 +1802,7 @@ static struct grub_usb_controller_dev usb_controller = {
   .check_transfer = grub_ehci_check_transfer,
   .cancel_transfer = grub_ehci_cancel_transfer,
   .hubports = grub_ehci_hubports,
-  .portstatus = grub_ehci_portstatus,
+  .reset_port = grub_ehci_reset_port,
   .detect_dev = grub_ehci_detect_dev,
   /* estimated max. count of TDs for one bulk transfer */
   .max_bulk_tds = GRUB_EHCI_N_TD * 3 / 4 
@@ -1948,7 +1816,7 @@ GRUB_MOD_INIT (ehci)
   grub_stop_disk_firmware ();
 
   grub_boot_time ("Initing EHCI hardware");
-  grub_ehci_inithw ();
+  grub_ehci_pci_scan ();
   grub_boot_time ("Registering EHCI driver");
   grub_usb_controller_dev_register (&usb_controller);
   grub_boot_time ("EHCI driver registered");

grub-core/bus/usb/ohci.c

@@ -1224,8 +1224,8 @@ grub_ohci_cancel_transfer (grub_usb_controller_t dev,
 }
 
 static grub_usb_err_t
-grub_ohci_portstatus (grub_usb_controller_t dev,
+grub_ohci_rest_port (grub_usb_controller_t dev,
-		      unsigned int port, unsigned int enable)
+		     unsigned int port)
 {
    struct grub_ohci *o = (struct grub_ohci *) dev->data;
    grub_uint64_t endtime;
@@ -1234,22 +1234,6 @@ grub_ohci_portstatus (grub_usb_controller_t dev,
    grub_dprintf ("ohci", "begin of portstatus=0x%02x\n",
                  grub_ohci_readreg32 (o, GRUB_OHCI_REG_RHUBPORT + port));
      
-   if (!enable) /* We don't need reset port */
-     {
-       /* Disable the port and wait for it. */
-       grub_ohci_writereg32 (o, GRUB_OHCI_REG_RHUBPORT + port,
-                             GRUB_OHCI_CLEAR_PORT_ENABLE);
-       endtime = grub_get_time_ms () + 1000;
-       while ((grub_ohci_readreg32 (o, GRUB_OHCI_REG_RHUBPORT + port)
-               & (1 << 1)))
-         if (grub_get_time_ms () > endtime)
-           return GRUB_USB_ERR_TIMEOUT;
-
-       grub_dprintf ("ohci", "end of portstatus=0x%02x\n",
-         grub_ohci_readreg32 (o, GRUB_OHCI_REG_RHUBPORT + port));
-       return GRUB_USB_ERR_NONE;
-     }
-     
    /* OHCI does one reset signal 10ms long but USB spec.
     * requests 50ms for root hub (no need to be continuous).
     * So, we do reset 5 times... */
@@ -1438,7 +1422,7 @@ static struct grub_usb_controller_dev usb_controller =
   .check_transfer = grub_ohci_check_transfer,
   .cancel_transfer = grub_ohci_cancel_transfer,
   .hubports = grub_ohci_hubports,
-  .portstatus = grub_ohci_portstatus,
+  .reset_port = grub_ohci_reset_port,
   .detect_dev = grub_ohci_detect_dev,
   /* estimated max. count of TDs for one bulk transfer */
   .max_bulk_tds = GRUB_OHCI_TDS * 3 / 4

grub-core/bus/usb/uhci.c

@@ -710,8 +710,8 @@ grub_uhci_iterate (grub_usb_controller_iterate_hook_t hook, void *hook_data)
 }
 
 static grub_usb_err_t
-grub_uhci_portstatus (grub_usb_controller_t dev,
+grub_uhci_reset_port (grub_usb_controller_t dev,
-		      unsigned int port, unsigned int enable)
+		      unsigned int port)
 {
   struct grub_uhci *u = (struct grub_uhci *) dev->data;
   int reg;
@@ -732,21 +732,6 @@ grub_uhci_portstatus (grub_usb_controller_t dev,
   status = grub_uhci_readreg16 (u, reg);
   grub_dprintf ("uhci", "detect=0x%02x\n", status);
     
-  if (!enable) /* We don't need reset port */
-    {
-      /* Disable the port.  */
-      grub_uhci_writereg16 (u, reg, 0 << 2);
-      grub_dprintf ("uhci", "waiting for the port to be disabled\n");
-      endtime = grub_get_time_ms () + 1000;
-      while ((grub_uhci_readreg16 (u, reg) & (1 << 2)))
-        if (grub_get_time_ms () > endtime)
-          return GRUB_USB_ERR_TIMEOUT;
-
-      status = grub_uhci_readreg16 (u, reg);
-      grub_dprintf ("uhci", ">3detect=0x%02x\n", status);
-      return GRUB_USB_ERR_NONE;
-    }
-    
   /* Reset the port.  */
   status = grub_uhci_readreg16 (u, reg) & ~GRUB_UHCI_PORTSC_RWC;
   grub_uhci_writereg16 (u, reg, status | (1 << 9));
@@ -843,7 +828,7 @@ static struct grub_usb_controller_dev usb_controller =
   .check_transfer = grub_uhci_check_transfer,
   .cancel_transfer = grub_uhci_cancel_transfer,
   .hubports = grub_uhci_hubports,
-  .portstatus = grub_uhci_portstatus,
+  .reset_port = grub_uhci_reset_port,
   .detect_dev = grub_uhci_detect_dev,
   /* estimated max. count of TDs for one bulk transfer */
   .max_bulk_tds = N_TD * 3 / 4

grub-core/bus/usb/usbhub.c

@@ -207,8 +207,8 @@ attach_root_port (struct grub_usb_hub *hub, int portno,
 
   grub_boot_time ("After detect_dev");
 
-  /* Enable the port.  */
+  /* Reset port.  */
-  err = hub->controller->dev->portstatus (hub->controller, portno, 1);
+  err = hub->controller->dev->reset_port (hub->controller, portno);
   if (err)
     return;
   hub->controller->dev->pending_reset = grub_get_time_ms () + 5000;

grub-core/bus/usb/usbtrans.c

@@ -18,12 +18,13 @@
  */
 
 #include <grub/dl.h>
-#include <grub/pci.h>
+#include <grub/dma.h>
 #include <grub/mm.h>
 #include <grub/misc.h>
 #include <grub/usb.h>
 #include <grub/usbtrans.h>
 #include <grub/time.h>
+#include <grub/cache.h>
 
 
 static inline unsigned int
@@ -101,6 +102,8 @@ grub_usb_control_msg (grub_usb_device_t dev,
   data_addr = grub_dma_get_phys (data_chunk);
   grub_memcpy ((char *) data, data_in, size);
 
+  grub_arch_sync_dma_caches (data, size);
+
   grub_dprintf ("usb",
 		"control: reqtype=0x%02x req=0x%02x val=0x%02x idx=0x%02x size=%lu\n",
 		reqtype, request,  value, index, (unsigned long)size);
@@ -161,6 +164,8 @@ grub_usb_control_msg (grub_usb_device_t dev,
   setupdata->value = value;
   setupdata->index = index;
   setupdata->length = size;
+  grub_arch_sync_dma_caches (setupdata, sizeof (*setupdata));
+
   transfer->transactions[0].size = sizeof (*setupdata);
   transfer->transactions[0].pid = GRUB_USB_TRANSFER_TYPE_SETUP;
   transfer->transactions[0].data = setupdata_addr;
@@ -202,11 +207,13 @@ grub_usb_control_msg (grub_usb_device_t dev,
   grub_free (transfer->transactions);
   
   grub_free (transfer);
-  grub_dma_free (data_chunk);
   grub_dma_free (setupdata_chunk);
 
+  grub_arch_sync_dma_caches (data, size0);
   grub_memcpy (data_in, (char *) data, size0);
 
+  grub_dma_free (data_chunk);
+
   return err;
 }
 
@@ -236,7 +243,10 @@ grub_usb_bulk_setup_readwrite (grub_usb_device_t dev,
   data = grub_dma_get_virt (data_chunk);
   data_addr = grub_dma_get_phys (data_chunk);
   if (type == GRUB_USB_TRANSFER_TYPE_OUT)
+    {
       grub_memcpy ((char *) data, data_in, size);
+      grub_arch_sync_dma_caches (data, size);
+    }
 
   /* Create a transfer.  */
   transfer = grub_malloc (sizeof (struct grub_usb_transfer));
@@ -306,9 +316,13 @@ grub_usb_bulk_finish_readwrite (grub_usb_transfer_t transfer)
   dev->toggle[transfer->endpoint] = toggle;
 
   if (transfer->dir == GRUB_USB_TRANSFER_TYPE_IN)
+    {
+      grub_arch_sync_dma_caches (grub_dma_get_virt (transfer->data_chunk),
+				 transfer->size + 1);
       grub_memcpy (transfer->data, (void *)
 		   grub_dma_get_virt (transfer->data_chunk),
 		   transfer->size + 1);
+    }
 
   grub_free (transfer->transactions);
   grub_dma_free (transfer->data_chunk);

grub-core/commands/i386/coreboot/cb_timestamps.c

@@ -20,7 +20,7 @@
 #include <grub/misc.h>
 #include <grub/command.h>
 #include <grub/i18n.h>
-#include <grub/i386/coreboot/lbio.h>
+#include <grub/coreboot/lbio.h>
 #include <grub/i386/tsc.h>
 
 GRUB_MOD_LICENSE ("GPLv3+");

grub-core/commands/i386/coreboot/cbls.c

@@ -20,7 +20,7 @@
 #include <grub/misc.h>
 #include <grub/command.h>
 #include <grub/i18n.h>
-#include <grub/i386/coreboot/lbio.h>
+#include <grub/coreboot/lbio.h>
 #include <grub/i386/tsc.h>
 
 GRUB_MOD_LICENSE ("GPLv3+");

grub-core/kern/arm/cache.c

@@ -29,6 +29,8 @@ void grub_arm_clean_dcache_range_armv6 (grub_addr_t start, grub_addr_t end,
 					grub_addr_t dlinesz);
 void grub_arm_clean_dcache_range_armv7 (grub_addr_t start, grub_addr_t end,
 					grub_addr_t dlinesz);
+void grub_arm_clean_dcache_range_poc_armv7 (grub_addr_t start, grub_addr_t end,
+					    grub_addr_t dlinesz);
 void grub_arm_invalidate_icache_range_armv6 (grub_addr_t start, grub_addr_t end,
 					     grub_addr_t dlinesz);
 void grub_arm_invalidate_icache_range_armv7 (grub_addr_t start, grub_addr_t end,
@@ -252,6 +254,38 @@ grub_arch_sync_caches (void *address, grub_size_t len)
     }
 }
 
+void
+grub_arch_sync_dma_caches (volatile void *address, grub_size_t len)
+{
+  grub_addr_t start = (grub_addr_t) address;
+  grub_addr_t end = start + len;
+
+  if (type == ARCH_UNKNOWN)
+    probe_caches ();
+  start = ALIGN_DOWN (start, grub_arch_cache_max_linesz);
+  end = ALIGN_UP (end, grub_arch_cache_max_linesz);
+  switch (type)
+    {
+    case ARCH_ARMV6:
+      grub_arm_clean_dcache_range_armv6 (start, end, grub_arch_cache_dlinesz);
+      grub_arm_invalidate_icache_range_armv6 (start, end,
+					      grub_arch_cache_ilinesz);
+      break;
+    case ARCH_ARMV5_WRITE_THROUGH:
+    case ARCH_ARMV6_UNIFIED:
+      grub_arm_clean_dcache_range_armv6 (start, end, grub_arch_cache_dlinesz);
+      break;
+    case ARCH_ARMV7:
+      grub_arm_clean_dcache_range_poc_armv7 (start, end, grub_arch_cache_dlinesz);
+      grub_arm_invalidate_icache_range_armv7 (start, end,
+					      grub_arch_cache_ilinesz);
+      break;
+      /* Pacify GCC.  */
+    case ARCH_UNKNOWN:
+      break;
+    }
+}
+
 void
 grub_arm_disable_caches_mmu (void)
 {

grub-core/kern/arm/cache_armv7.S

@@ -33,6 +33,18 @@
 # define ISB	isb
 #define ARMV7 1
 
+FUNCTION(grub_arm_clean_dcache_range_poc_armv7)
+	DSB
+	@ Clean data cache for range to point-of-coherence
+1:	cmp	r0, r1
+	bge	2f
+	mcr	p15, 0, r0, c7, c14, 1	@ DCCMVAC
+	add	r0, r0, r2		@ Next line
+	b	1b
+2:	DSB
+	bx	lr
+
+
 	@ r0  - CLIDR
 	@ r1  - LoC
 	@ r2  - current level

grub-core/kern/arm/coreboot/cbtable.c

@@ -0,0 +1,74 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2007,2008,2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/coreboot/lbio.h>
+#include <grub/types.h>
+#include <grub/err.h>
+#include <grub/misc.h>
+#include <grub/dl.h>
+#include <grub/arm/startup.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#pragma GCC diagnostic ignored "-Wcast-align"
+
+/* Helper for grub_linuxbios_table_iterate.  */
+static int
+check_signature (grub_linuxbios_table_header_t tbl_header)
+{
+  if (! grub_memcmp (tbl_header->signature, "LBIO", 4))
+    return 1;
+
+  return 0;
+}
+
+grub_err_t
+grub_linuxbios_table_iterate (int (*hook) (grub_linuxbios_table_item_t,
+					   void *),
+			      void *hook_data)
+{
+  grub_linuxbios_table_header_t table_header
+    = (grub_linuxbios_table_header_t) grub_arm_saved_registers.r[0];
+  grub_linuxbios_table_item_t table_item;
+
+  if (!check_signature (table_header))
+    return 0;
+
+ signature_found:
+  table_item =
+    (grub_linuxbios_table_item_t) ((char *) table_header +
+				   table_header->header_size);
+  for (; table_item < (grub_linuxbios_table_item_t) ((char *) table_header
+						     + table_header->header_size
+						     + table_header->table_size);
+       table_item = (grub_linuxbios_table_item_t) ((char *) table_item + table_item->size))
+    {
+      if (table_item->tag == GRUB_LINUXBIOS_MEMBER_LINK
+         && check_signature ((grub_linuxbios_table_header_t) (grub_addr_t)
+                             *(grub_uint64_t *) (table_item + 1)))
+       {
+         table_header = (grub_linuxbios_table_header_t) (grub_addr_t)
+           *(grub_uint64_t *) (table_item + 1);
+         goto signature_found;   
+       }
+      if (hook (table_item, hook_data))
+       return 1;
+    }
+
+  return 0;
+}

grub-core/kern/arm/coreboot/coreboot.S

@@ -0,0 +1,44 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2016  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+
+	.file	"coreboot.S"
+	.text
+	.syntax	unified
+#if !defined (__thumb2__)
+	.arch	armv7a
+	.arm
+#else
+	.arch	armv7
+	.thumb
+#endif
+
+FUNCTION(grub_arm_pfr1)
+	mrc p15, 0, r0, c0, c1, 1
+	bx	lr
+
+FUNCTION(grub_armv7_get_timer_value)
+	isb
+	mrrc p15, 1, r0, r1, c14
+	bx	lr
+
+FUNCTION(grub_armv7_get_timer_frequency)
+	mrc p15, 0, r0, c14, c0, 0
+	bx	lr
+

grub-core/kern/arm/coreboot/dma.c

@@ -0,0 +1,59 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/dma.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/mm_private.h>
+#include <grub/cache.h>
+
+struct grub_pci_dma_chunk *
+grub_memalign_dma32 (grub_size_t align, grub_size_t size)
+{
+  void *ret;
+  if (align < 64)
+    align = 64;
+  size = ALIGN_UP (size, align);
+  ret = grub_memalign (align, size);
+  if (!ret)
+    return 0;
+  grub_arch_sync_dma_caches (ret, size);
+  return ret;
+}
+
+void
+grub_dma_free (struct grub_pci_dma_chunk *ch)
+{
+  grub_size_t size = (((struct grub_mm_header *) ch) - 1)->size * GRUB_MM_ALIGN;
+  grub_arch_sync_dma_caches (ch, size);
+  grub_free (ch);
+}
+
+volatile void *
+grub_dma_get_virt (struct grub_pci_dma_chunk *ch)
+{
+  return (void *) ch;
+}
+
+grub_uint32_t
+grub_dma_get_phys (struct grub_pci_dma_chunk *ch)
+{
+  return (grub_uint32_t) (grub_addr_t) ch;
+}
+

grub-core/kern/arm/coreboot/init.c

@@ -0,0 +1,169 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009,2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/kernel.h>
+#include <grub/mm.h>
+#include <grub/memory.h>
+#include <grub/machine/console.h>
+#include <grub/machine/kernel.h>
+#include <grub/offsets.h>
+#include <grub/types.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/loader.h>
+#include <grub/env.h>
+#include <grub/cache.h>
+#include <grub/time.h>
+#include <grub/symbol.h>
+#include <grub/video.h>
+#include <grub/coreboot/lbio.h>
+#include <grub/fdtbus.h>
+
+extern grub_uint8_t _start[];
+extern grub_uint8_t _end[];
+extern grub_uint8_t _edata[];
+grub_addr_t start_of_ram = ~(grub_addr_t)0;
+
+void  __attribute__ ((noreturn))
+grub_exit (void)
+{
+  /* We can't use grub_fatal() in this function.  This would create an infinite
+     loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit().  */
+  while (1)
+    grub_cpu_idle ();
+}
+
+static grub_uint64_t modend;
+static int have_memory = 0;
+
+/* Helper for grub_machine_init.  */
+static int
+heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
+	   void *data __attribute__ ((unused)))
+{
+  grub_uint64_t begin = addr, end = addr + size;
+
+#if GRUB_CPU_SIZEOF_VOID_P == 4
+  /* Restrict ourselves to 32-bit memory space.  */
+  if (begin > GRUB_ULONG_MAX)
+    return 0;
+  if (end > GRUB_ULONG_MAX)
+    end = GRUB_ULONG_MAX;
+#endif
+
+  if (start_of_ram > begin)
+    start_of_ram = begin;
+
+  if (type != GRUB_MEMORY_AVAILABLE)
+    return 0;
+
+  if (modend && begin < modend)
+    {
+      if (begin < (grub_addr_t)_start)
+	{
+	  grub_mm_init_region ((void *) (grub_addr_t) begin, (grub_size_t) ((grub_addr_t)_start - begin));
+	  have_memory = 1;
+	}
+      begin = modend;
+    }
+
+  /* Avoid DMA problems.  */
+  if (end >= 0xfe000000)
+    end = 0xfe000000;
+
+  if (end <= begin)
+    return 0;
+
+  grub_mm_init_region ((void *) (grub_addr_t) begin, (grub_size_t) (end - begin));
+
+  have_memory = 1;
+
+  return 0;
+}
+
+static const void *dtb;
+static grub_size_t dtb_size;
+
+static int
+iterate_linuxbios_table (grub_linuxbios_table_item_t table_item, void *data __attribute__ ((unused)))
+{
+  if (table_item->tag != GRUB_LINUXBIOS_MEMBER_DTB)
+    return 0;
+
+  if (grub_fdt_check_header (table_item + 1, table_item->size) >= 0)
+    {
+      dtb = table_item + 1;
+      dtb_size = table_item->size;
+    }
+  else
+    grub_printf ("Invalid DTB supplied by coreboot\n");
+  return 0;
+}
+
+
+void
+grub_machine_init (void)
+{
+  struct grub_module_header *header;
+
+  modend = grub_modules_get_end ();
+
+  grub_video_coreboot_fb_early_init ();
+
+  grub_machine_mmap_iterate (heap_init, NULL);
+  if (!have_memory)
+    grub_fatal ("No memory found");
+
+  grub_video_coreboot_fb_late_init ();
+
+  grub_font_init ();
+  grub_gfxterm_init ();
+
+  FOR_MODULES (header)
+    if (header->type == OBJ_TYPE_DTB)
+      {
+	char *dtb_orig_addr, *dtb_copy;
+	dtb_orig_addr = (char *) header + sizeof (struct grub_module_header);
+
+	dtb_size = header->size - sizeof (struct grub_module_header);
+	dtb = dtb_copy = grub_malloc (dtb_size);
+	grub_memmove (dtb_copy, dtb_orig_addr, dtb_size);
+	break;
+      }
+  if (!dtb)
+    grub_linuxbios_table_iterate (iterate_linuxbios_table, 0);
+  if (!dtb)
+    grub_fatal ("No DTB found");
+  grub_fdtbus_init (dtb, dtb_size);
+
+  grub_machine_timer_init ();
+  grub_cros_init ();
+  grub_pl050_init ();
+}
+
+void
+grub_machine_get_bootlocation (char **device __attribute__ ((unused)),
+			       char **path __attribute__ ((unused)))
+{
+}
+
+void
+grub_machine_fini (int flags __attribute__ ((unused)))
+{
+}

grub-core/kern/arm/coreboot/timer.c

@@ -0,0 +1,101 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2016  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/machine/kernel.h>
+#include <grub/types.h>
+#include <grub/err.h>
+#include <grub/time.h>
+#include <grub/fdtbus.h>
+#include <grub/misc.h>
+
+grub_uint64_t
+grub_armv7_get_timer_value(void);
+
+grub_uint32_t
+grub_armv7_get_timer_frequency(void);
+
+grub_uint32_t
+grub_arm_pfr1(void);
+
+static int have_timer = 0;
+static volatile grub_uint32_t *sp804_regs;
+
+static grub_uint64_t
+sp804_get_time_ms (void)
+{
+  static grub_uint32_t high, last_low;
+  grub_uint32_t low = ~sp804_regs[1];
+  if (last_low > low)
+    high++;
+  last_low = low;
+  return grub_divmod64 ((((grub_uint64_t) high) << 32) | low,
+			1000, 0);
+}
+
+static grub_err_t
+sp804_attach(const struct grub_fdtbus_dev *dev)
+{
+  if (have_timer)
+    return GRUB_ERR_NONE;
+  sp804_regs = grub_fdtbus_map_reg (dev, 0, 0);
+  if (!grub_fdtbus_is_mapping_valid (sp804_regs))
+    return grub_error (GRUB_ERR_IO, "could not map sp804: %p", sp804_regs);
+  grub_install_get_time_ms (sp804_get_time_ms);
+  have_timer = 1;
+  return GRUB_ERR_NONE;
+}
+
+struct grub_fdtbus_driver sp804 =
+{
+  .compatible = "arm,sp804",
+  .attach = sp804_attach
+};
+
+static grub_uint32_t timer_frequency_in_khz;
+
+static grub_uint64_t
+generic_get_time_ms (void)
+{
+  return grub_divmod64 (grub_armv7_get_timer_value(), timer_frequency_in_khz, 0);
+}
+
+static int
+try_generic_timer (void)
+{
+  if (((grub_arm_pfr1 () >> 16) & 0xf) != 1)
+    return 0;
+  grub_printf ("freq = %x\n", grub_armv7_get_timer_frequency());
+  timer_frequency_in_khz = 0x016e3600 / 1000; //grub_armv7_get_timer_frequency() / 1000;
+  if (timer_frequency_in_khz == 0)
+    return 0;
+  grub_install_get_time_ms (generic_get_time_ms);
+  have_timer = 1;
+  return 1;
+}
+
+void
+grub_machine_timer_init (void)
+{
+  grub_fdtbus_register (&sp804);
+
+  if (!have_timer)
+    try_generic_timer ();
+  if (!have_timer)
+    grub_fatal ("No timer found");
+}

grub-core/kern/arm/startup.S

@@ -24,6 +24,7 @@
  * GRUB is called from U-Boot as a Linux Kernel type image, which
  * means among other things that it always enters in ARM state.
  *
+ * coreboot starts in ARM mode as well.
  *
  * Overview of GRUB image layout:
  *
@@ -55,10 +56,6 @@ FUNCTION(_start)
 VARIABLE(grub_total_module_size)
 	.long 	0
 
-VARIABLE(grub_uboot_machine_type)
-	.long   0
-VARIABLE(grub_uboot_boot_data)
-	.long   0
 VARIABLE(grub_modbase)
 	.long 0
 bss_start_ptr:
@@ -66,34 +63,73 @@ bss_start_ptr:
 end_ptr:
 	.long   EXT_C(_end)
 
+	@ Memory map at start:
+	@ * text+data
+	@ * list relocations
+	@ * modules
+	@ Before we enter C, we need to apply the relocations
+	@ and get following map:
+	@ * text+data
+	@ * BSS (cleared)
+	@ * stack
+	@ * modules
+	@
+	@ To make things easier we ensure
+	@ that BSS+stack is larger than list of relocations
+	@ by increasing stack if necessarry.
+	@ This allows us to always unconditionally copy backwards
+	@ Currently list of relocations is ~5K and stack is set
+	@ to be at least 256K
+
 FUNCTION(codestart)
 	@ Store context: Machine ID, atags/dtb, ...
 	@ U-Boot API signature is stored on the U-Boot heap
 	@ Stack pointer used as start address for signature probing
 	mov	r12, sp
 	adr	sp, entry_state
-	push	{r4-r12,lr}	@ store U-Boot context (sp in r12)
+	push	{r0-r12,lr}	@ store U-Boot context (sp in r12)
 
-	str     r1, EXT_C(grub_uboot_machine_type)
+	adr     r1, _start
-	str     r2, EXT_C(grub_uboot_boot_data)
-
-	@ Modules have been stored as a blob in BSS,
-	@ they need to be manually relocated to _end
 	ldr	r0, bss_start_ptr		@ src
+	add     r0, r0, r1
+
+	add	r0, r0, #(GRUB_KERNEL_MACHINE_MOD_ALIGN - 1)
+	mvn	r2, #(GRUB_KERNEL_MACHINE_MOD_ALIGN - 1)
+	and	r0, r0, r2
+1:	
+        ldr     r3, [r0], #4  @load next offset
+	@ both -2 and -1 are treated the same as we have only one type of relocs
+	@ -2 means "end of this type of relocs" and -1 means "end of all relocs"
+        add     r2, r3, #2
+        cmp     r2, #1
+        bls     reloc_done
+	@ Adjust next offset
+        ldr     r2, [r3, r1]
+        add     r2, r2, r1
+        str     r2, [r3, r1]
+	b 1b
+
+reloc_done:
+
+	@ Modules have been stored as a blob
+	@ they need to be manually relocated to _end
 	add	r0, r0, #(GRUB_KERNEL_MACHINE_MOD_ALIGN - 1)
 	mvn	r1, #(GRUB_KERNEL_MACHINE_MOD_ALIGN - 1)
-	and	r0, r0, r1
+	and	r0, r0, r1	@ src = aligned end of relocations
 
 	ldr	r1, end_ptr		@ dst = End of BSS
 	ldr	r2, grub_total_module_size	@ blob size
 
 	add     r1, r1, #GRUB_KERNEL_MACHINE_STACK_SIZE
 	and	r1, r1, #~0x7	@ Ensure 8-byte alignment
+	
 	sub	sp, r1, #8
 	add     r1, r1, #1024
 
 	str     r1, EXT_C(grub_modbase)
 
+	/* Coreboot already places modules at right place.  */
+#ifndef GRUB_MACHINE_COREBOOT
 	add	r1, r1, r2
 	add	r0, r0, r2
 	sub     r1, r1, #4
@@ -103,6 +139,7 @@ FUNCTION(codestart)
 	str	r3, [r1], #-4			@ *dst-- = r3 
 	subs	r2, #4				@ remaining -= 4
 	bne	1b				@ while remaining != 0
+#endif
 
 	@ Since we _are_ the C run-time, we need to manually zero the BSS
 	@ region before continuing
@@ -120,64 +157,21 @@ FUNCTION(codestart)
 	
 	b	EXT_C(grub_main)
 
-	/*
-	 * uboot_syscall():
-	 *   This function is effectively a veneer, so it cannot
-	 *   modify the stack or corrupt any registers other than
-	 *   r12 (ip). Furthermore it needs to restore r8 for
-	 *   U-Boot (Global Data Pointer) and preserve it for Grub.
-	 */
-FUNCTION(grub_uboot_syscall)
-	str     r8, transition_space
-	str     lr, transition_space + 4
-	str     r9, transition_space + 8
-
-	ldr	r8, gd_backup
-	ldr	r9, gd_backup + 4
-
-	bl	do_syscall
-
-	ldr     r8, transition_space
-	ldr     lr, transition_space + 4
-	ldr     r9, transition_space + 8
-
-	bx	lr
-do_syscall:
-
-	ldr	ip, grub_uboot_syscall_ptr
-	bx	ip
-	
-FUNCTION(grub_uboot_return)
-	adr	sp, entry_state_end
-	pop	{r4-r12, lr}
-	mov	sp, r12
-	bx	lr
-
-	
 	.align	3
-@ U-boot context stack space
+@ U-boot/coreboot context stack space
-entry_state_end:
+VARIABLE(grub_arm_saved_registers)
+	.long	0	@ r0
+	.long	0	@ r1
+	.long	0	@ r2
+	.long	0	@ r3
 	.long	0	@ r4
 	.long	0	@ r5
 	.long	0	@ r6
 	.long	0	@ r7	
-gd_backup:	
+	.long	0	@ r8
-	.long	0	@ r8 - U-Boot global data pointer up to 2013-09-21
+	.long	0	@ r9
-	.long	0	@ r9 - U-Boot global data pointer 2013-09-21 onwards
 	.long	0	@ r10
 	.long	0	@ r11
-VARIABLE(grub_uboot_search_hint)@ U-Boot stack pointer - 
+	.long	0	@ sp
-	.long	0	@ also API signature address hint.
 	.long	0	@ lr
-entry_state:		@ backup for U-Boot context
+entry_state:
-
-@ GRUB context stack space
-transition_space:	
-	.long	0	@ r8
-	.long	0	@ lr
-	.long	0	@ r9
-
-VARIABLE(grub_uboot_syscall_ptr)
-	.long	0	@
-
-	END

grub-core/kern/arm/uboot/init.c

@@ -0,0 +1,70 @@
+/* init.c - generic U-Boot initialization and finalization */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2016  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/uboot/uboot.h>
+#include <grub/arm/startup.h>
+#include <grub/uboot/api_public.h>
+
+extern int (*grub_uboot_syscall_ptr) (int, int *, ...);
+
+grub_uint32_t
+grub_uboot_get_machine_type (void)
+{
+  return grub_arm_saved_registers.r[1];
+}
+
+const void *
+grub_uboot_get_boot_data (void)
+{
+  return (const void *) grub_arm_saved_registers.r[2];
+}
+
+int
+grub_uboot_api_init (void)
+{
+  struct api_signature *start, *end;
+  struct api_signature *p;
+  grub_addr_t grub_uboot_search_hint = grub_arm_saved_registers.sp;
+  if (grub_uboot_search_hint)
+    {
+      /* Extended search range to work around Trim Slice U-Boot issue */
+      start = (struct api_signature *) ((grub_uboot_search_hint & ~0x000fffff)
+					- 0x00500000);
+      end =
+	(struct api_signature *) ((grub_addr_t) start + UBOOT_API_SEARCH_LEN -
+				  API_SIG_MAGLEN + 0x00500000);
+    }
+  else
+    {
+      start = 0;
+      end = (struct api_signature *) (256 * 1024 * 1024);
+    }
+
+  /* Structure alignment is (at least) 8 bytes */
+  for (p = start; p < end; p = (void *) ((grub_addr_t) p + 8))
+    {
+      if (grub_memcmp (&(p->magic), API_SIG_MAGIC, API_SIG_MAGLEN) == 0)
+	{
+	  grub_uboot_syscall_ptr = p->syscall;
+	  return p->version;
+	}
+    }
+
+  return 0;
+}

grub-core/kern/arm/uboot/uboot.S

@@ -0,0 +1,73 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/offsets.h>
+#include <grub/symbol.h>
+#include <grub/machine/kernel.h>
+
+	/*
+	 * uboot_syscall():
+	 *   This function is effectively a veneer, so it cannot
+	 *   modify the stack or corrupt any registers other than
+	 *   r12 (ip). Furthermore it needs to restore r8 for
+	 *   U-Boot (Global Data Pointer) and preserve it for Grub.
+	 */
+FUNCTION(grub_uboot_syscall)
+	str     r8, transition_space
+	str     lr, transition_space + 4
+	str     r9, transition_space + 8
+
+	ldr	ip, saved_registers_ptr
+	ldr	r8, [ip, #4 * 8]
+	ldr	r9, [ip, #4 * 9]
+
+	bl	do_syscall
+
+	ldr     r8, transition_space
+	ldr     lr, transition_space + 4
+	ldr     r9, transition_space + 8
+
+	bx	lr
+do_syscall:
+
+	ldr	ip, grub_uboot_syscall_ptr
+	bx	ip
+	
+FUNCTION(grub_uboot_return)
+	ldr	ip, saved_registers_ptr
+	ldr	sp, [ip, #4 * 4]
+	pop	{r4-r12, lr}
+	mov	sp, r12
+	bx	lr
+
+	
+	.align	3
+
+@ GRUB context stack space
+transition_space:	
+	.long	0	@ r8
+	.long	0	@ lr
+	.long	0	@ r9
+
+saved_registers_ptr:
+	.long EXT_C(grub_arm_saved_registers)
+
+VARIABLE(grub_uboot_syscall_ptr)
+	.long	0	@
+
+	END

grub-core/kern/coreboot/mmap.c

@@ -16,8 +16,8 @@
  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <grub/machine/memory.h>
+#include <grub/memory.h>
-#include <grub/machine/lbio.h>
+#include <grub/coreboot/lbio.h>
 #include <grub/types.h>
 #include <grub/err.h>
 #include <grub/misc.h>
@@ -49,6 +49,7 @@ iterate_linuxbios_table (grub_linuxbios_table_item_t table_item, void *data)
     {
       grub_uint64_t start = mem_region->addr;
       grub_uint64_t end = mem_region->addr + mem_region->size;
+#ifdef __i386__
       /* Mark region 0xa0000 - 0x100000 as reserved.  */
       if (start < 0x100000 && end >= 0xa0000
 	  && mem_region->type == GRUB_MACHINE_MEMORY_AVAILABLE)
@@ -75,6 +76,7 @@ iterate_linuxbios_table (grub_linuxbios_table_item_t table_item, void *data)
 	  if (end <= start)
 	    continue;
 	}
+#endif
       if (ctx->hook (start, end - start,
 		     /* Multiboot mmaps match with the coreboot mmap
 		        definition.  Therefore, we can just pass type

grub-core/kern/i386/coreboot/cbtable.c

@@ -17,7 +17,7 @@
  */
 
 #include <grub/i386/coreboot/memory.h>
-#include <grub/i386/coreboot/lbio.h>
+#include <grub/coreboot/lbio.h>
 #include <grub/types.h>
 #include <grub/err.h>
 #include <grub/misc.h>

grub-core/kern/misc.c

@@ -1106,6 +1106,8 @@ grub_fatal (const char *fmt, ...)
   grub_vprintf (_(fmt), ap);
   va_end (ap);
 
+  grub_refresh ();
+
   grub_abort ();
 }
 

grub-core/kern/uboot/init.c

@@ -36,30 +36,14 @@
 extern char __bss_start[];
 extern char _end[];
 extern grub_size_t grub_total_module_size;
-extern int (*grub_uboot_syscall_ptr) (int, int *, ...);
 static unsigned long timer_start;
 
-extern grub_uint32_t grub_uboot_machine_type;
-extern grub_addr_t grub_uboot_boot_data;
-
 void
 grub_exit (void)
 {
   grub_uboot_return (0);
 }
 
-grub_uint32_t
-grub_uboot_get_machine_type (void)
-{
-  return grub_uboot_machine_type;
-}
-
-grub_addr_t
-grub_uboot_get_boot_data (void)
-{
-  return grub_uboot_boot_data;
-}
-
 static grub_uint64_t
 uboot_timer_ms (void)
 {

grub-core/kern/uboot/uboot.c

@@ -39,48 +39,13 @@
  * returns:	0 if the call not found, 1 if serviced
  */
 
-extern int (*grub_uboot_syscall_ptr) (int, int *, ...);
 extern int grub_uboot_syscall (int, int *, ...);
-extern grub_addr_t grub_uboot_search_hint;
 
 static struct sys_info uboot_sys_info;
 static struct mem_region uboot_mem_info[5];
 static struct device_info * devices;
 static int num_devices;
 
-int
-grub_uboot_api_init (void)
-{
-  struct api_signature *start, *end;
-  struct api_signature *p;
-
-  if (grub_uboot_search_hint)
-    {
-      /* Extended search range to work around Trim Slice U-Boot issue */
-      start = (struct api_signature *) ((grub_uboot_search_hint & ~0x000fffff)
-					- 0x00500000);
-      end =
-	(struct api_signature *) ((grub_addr_t) start + UBOOT_API_SEARCH_LEN -
-				  API_SIG_MAGLEN + 0x00500000);
-    }
-  else
-    {
-      start = 0;
-      end = (struct api_signature *) (256 * 1024 * 1024);
-    }
-
-  /* Structure alignment is (at least) 8 bytes */
-  for (p = start; p < end; p = (void *) ((grub_addr_t) p + 8))
-    {
-      if (grub_memcmp (&(p->magic), API_SIG_MAGIC, API_SIG_MAGLEN) == 0)
-	{
-	  grub_uboot_syscall_ptr = p->syscall;
-	  return p->version;
-	}
-    }
-
-  return 0;
-}
 
 /*
  * All functions below are wrappers around the grub_uboot_syscall() function

grub-core/lib/fdt.c

@@ -102,13 +102,13 @@ static grub_uint32_t *get_next_node (const void *fdt, char *node_name)
 static int get_mem_rsvmap_size (const void *fdt)
 {
   int size = 0;
-  grub_uint64_t *ptr = (void *) ((grub_addr_t) fdt
+  grub_unaligned_uint64_t *ptr = (void *) ((grub_addr_t) fdt
 					   + grub_fdt_get_off_mem_rsvmap (fdt));
 
   do
   {
     size += 2 * sizeof(*ptr);
-    if (!*ptr && !*(ptr + 1))
+    if (!ptr[0].val && !ptr[1].val)
       return size;
     ptr += 2;
   } while ((grub_addr_t) ptr <= (grub_addr_t) fdt + grub_fdt_get_totalsize (fdt)
@@ -229,7 +229,7 @@ static int rearrange_blocks (void *fdt, unsigned int clearance)
   return 0;
 }
 
-static grub_uint32_t *find_prop (void *fdt, unsigned int nodeoffset,
+static grub_uint32_t *find_prop (const void *fdt, unsigned int nodeoffset,
 				 const char *name)
 {
   grub_uint32_t *prop = (void *) ((grub_addr_t) fdt
@@ -268,9 +268,9 @@ static grub_uint32_t *find_prop (void *fdt, unsigned int nodeoffset,
    the size allocated for the FDT; if this function is called before the other
    functions in this file and returns success, the other functions are
    guaranteed not to access memory locations outside the allocated memory. */
-int grub_fdt_check_header_nosize (void *fdt)
+int grub_fdt_check_header_nosize (const void *fdt)
 {
-  if (((grub_addr_t) fdt & 0x7) || (grub_fdt_get_magic (fdt) != FDT_MAGIC)
+  if (((grub_addr_t) fdt & 0x3) || (grub_fdt_get_magic (fdt) != FDT_MAGIC)
       || (grub_fdt_get_version (fdt) < FDT_SUPPORTED_VERSION)
       || (grub_fdt_get_last_comp_version (fdt) > FDT_SUPPORTED_VERSION)
       || (grub_fdt_get_off_dt_struct (fdt) & 0x00000003)
@@ -286,7 +286,7 @@ int grub_fdt_check_header_nosize (void *fdt)
   return 0;
 }
 
-int grub_fdt_check_header (void *fdt, unsigned int size)
+int grub_fdt_check_header (const void *fdt, unsigned int size)
 {
   if (size < sizeof (grub_fdt_header_t)
       || (grub_fdt_get_totalsize (fdt) > size)
@@ -295,41 +295,29 @@ int grub_fdt_check_header (void *fdt, unsigned int size)
   return 0;
 }
 
-/* Find a direct sub-node of a given parent node. */
+static const grub_uint32_t *
-int grub_fdt_find_subnode (const void *fdt, unsigned int parentoffset,
+advance_token (const void *fdt, const grub_uint32_t *token, const grub_uint32_t *end, int skip_current)
-			   const char *name)
 {
-  grub_uint32_t *token, *end;
+  for (; token < end; skip_current = 0)
-  char *node_name;
-
-  if (parentoffset & 0x3)
-    return -1;
-  token = (void *) ((grub_addr_t) fdt + grub_fdt_get_off_dt_struct(fdt)
-                    + parentoffset);
-  end = (void *) struct_end (fdt);
-  if ((token >= end) || (grub_be_to_cpu32(*token) != FDT_BEGIN_NODE))
-    return -1;
-  SKIP_NODE_NAME(node_name, token, end);
-  while (token < end)
   {
-    switch (grub_be_to_cpu32(*token))
+    switch (grub_be_to_cpu32 (*token))
     {
       case FDT_BEGIN_NODE:
-        node_name = (char *) (token + 1);
+	if (skip_current)
-        if (node_name + grub_strlen (name) >= (char *) end)
+	  {
-          return -1;
+	    token = get_next_node (fdt, (char *) (token + 1));
-        if (!grub_strcmp (node_name, name))
+	    continue;
-          return (int) ((grub_addr_t) token - (grub_addr_t) fdt
+	  }
-                        - grub_fdt_get_off_dt_struct (fdt));
+	char *ptr;
-        token = get_next_node (fdt, node_name);
+	for (ptr = (char *) (token + 1); *ptr && ptr < (char *) end; ptr++);
-        if (!token)
+        if (ptr >= (char *) end)
-          return -1;
+          return 0;
-        break;
+	return token;
       case FDT_PROP:
         /* Skip property token and following data (len, nameoff and property
            value). */
         if (token >= end - 1)
-          return -1;
+          return 0;
         token += prop_entry_size(grub_be_to_cpu32(*(token + 1)))
                  / sizeof(*token);
         break;
@@ -337,10 +325,74 @@ int grub_fdt_find_subnode (const void *fdt, unsigned int parentoffset,
         token++;
         break;
       default:
-        return -1;
+        return 0;
     }
   }
+  return 0;
+}
+
+int grub_fdt_next_node (const void *fdt, unsigned int currentoffset)
+{
+  const grub_uint32_t *token = (const grub_uint32_t *) fdt + (currentoffset + grub_fdt_get_off_dt_struct (fdt)) / 4;
+  token = advance_token (fdt, token, (const void *) struct_end (fdt), 1);
+  if (!token)
     return -1;
+  return (int) ((grub_addr_t) token - (grub_addr_t) fdt
+		- grub_fdt_get_off_dt_struct (fdt));
+}			 
+
+int grub_fdt_first_node (const void *fdt, unsigned int parentoffset)
+{
+  const grub_uint32_t *token, *end;
+  char *node_name;
+
+  if (parentoffset & 0x3)
+    return -1;
+  token = (const void *) ((grub_addr_t) fdt + grub_fdt_get_off_dt_struct(fdt)
+                    + parentoffset);
+  end = (const void *) struct_end (fdt);
+  if ((token >= end) || (grub_be_to_cpu32(*token) != FDT_BEGIN_NODE))
+    return -1;
+  SKIP_NODE_NAME(node_name, token, end);
+  token = advance_token (fdt, token, end, 0);
+  if (!token)
+    return -1;
+  return (int) ((grub_addr_t) token - (grub_addr_t) fdt
+		- grub_fdt_get_off_dt_struct (fdt));
+}			 
+
+/* Find a direct sub-node of a given parent node. */
+int grub_fdt_find_subnode (const void *fdt, unsigned int parentoffset,
+			   const char *name)
+{
+  const grub_uint32_t *token, *end;
+  const char *node_name;
+  int skip_current = 0;
+
+  if (parentoffset & 0x3)
+    return -1;
+  token = (const void *) ((grub_addr_t) fdt + grub_fdt_get_off_dt_struct(fdt)
+                    + parentoffset);
+  end = (const void *) struct_end (fdt);
+  if ((token >= end) || (grub_be_to_cpu32(*token) != FDT_BEGIN_NODE))
+    return -1;
+  SKIP_NODE_NAME(node_name, token, end);
+  while (1) {
+    token = advance_token (fdt, token, end, skip_current);
+    if (!token)
+      return -1;
+    skip_current = 1;
+    node_name = (const char *) token + 4;
+    if (grub_strcmp (node_name, name) == 0)
+      return (int) ((grub_addr_t) token - (grub_addr_t) fdt
+		    - grub_fdt_get_off_dt_struct (fdt));
+  }
+}
+
+const char *
+grub_fdt_get_nodename (const void *fdt, unsigned int nodeoffset)
+{
+  return (const char *) fdt + grub_fdt_get_off_dt_struct(fdt) + nodeoffset + 4;
 }
 
 int grub_fdt_add_subnode (void *fdt, unsigned int parentoffset,
@@ -359,6 +411,24 @@ int grub_fdt_add_subnode (void *fdt, unsigned int parentoffset,
   return add_subnode (fdt, parentoffset, name);
 }
 
+const void *
+grub_fdt_get_prop (const void *fdt, unsigned int nodeoffset, const char *name,
+		   grub_uint32_t *len)
+{
+  grub_uint32_t *prop;
+  if ((nodeoffset >= grub_fdt_get_size_dt_struct (fdt)) || (nodeoffset & 0x3)
+      || (grub_be_to_cpu32(*(grub_uint32_t *) ((grub_addr_t) fdt
+					       + grub_fdt_get_off_dt_struct (fdt) + nodeoffset))
+          != FDT_BEGIN_NODE))
+    return 0;
+  prop = find_prop (fdt, nodeoffset, name);
+  if (!prop)
+    return 0;
+  if (len)
+    *len = grub_be_to_cpu32 (*(prop + 1));
+  return prop + 3;
+}
+
 int grub_fdt_set_prop (void *fdt, unsigned int nodeoffset, const char *name,
 		       const void *val, grub_uint32_t len)
 {

grub-core/loader/arm/linux.c

@@ -42,7 +42,7 @@ static grub_size_t linux_size;
 static char *linux_args;
 
 static grub_uint32_t machine_type;
-static void *fdt_addr;
+static const void *current_fdt;
 
 typedef void (*kernel_entry_t) (int, unsigned long, void *);
 
@@ -54,9 +54,9 @@ typedef void (*kernel_entry_t) (int, unsigned long, void *);
 #define LINUX_FDT_PHYS_OFFSET    (LINUX_INITRD_PHYS_OFFSET - 0x10000)
 
 static grub_size_t
-get_atag_size (grub_uint32_t *atag)
+get_atag_size (const grub_uint32_t *atag)
 {
-  grub_uint32_t *atag0 = atag;
+  const grub_uint32_t *atag0 = atag;
   while (atag[0] && atag[1])
     atag += atag[0];
   return atag - atag0;
@@ -68,10 +68,11 @@ get_atag_size (grub_uint32_t *atag)
  *   Merges in command line parameters and sets up initrd addresses.
  */
 static grub_err_t
-linux_prepare_atag (void)
+linux_prepare_atag (void *target_atag)
 {
-  grub_uint32_t *atag_orig = (grub_uint32_t *) fdt_addr;
+  const grub_uint32_t *atag_orig = (const grub_uint32_t *) current_fdt;
-  grub_uint32_t *tmp_atag, *from, *to;
+  grub_uint32_t *tmp_atag, *to;
+  const grub_uint32_t *from;
   grub_size_t tmp_size;
   grub_size_t arg_size = grub_strlen (linux_args);
   char *cmdline_orig = NULL;
@@ -142,7 +143,7 @@ linux_prepare_atag (void)
   to += 2;
 
   /* Copy updated FDT to its launch location */
-  grub_memcpy (atag_orig, tmp_atag, sizeof (grub_uint32_t) * (to - tmp_atag));
+  grub_memcpy (target_atag, tmp_atag, sizeof (grub_uint32_t) * (to - tmp_atag));
   grub_free (tmp_atag);
 
   grub_dprintf ("loader", "ATAG updated for Linux boot\n");
@@ -156,19 +157,19 @@ linux_prepare_atag (void)
  *   Merges in command line parameters and sets up initrd addresses.
  */
 static grub_err_t
-linux_prepare_fdt (void)
+linux_prepare_fdt (void *target_fdt)
 {
   int node;
   int retval;
   int tmp_size;
   void *tmp_fdt;
 
-  tmp_size = grub_fdt_get_totalsize (fdt_addr) + 0x100 + grub_strlen (linux_args);
+  tmp_size = grub_fdt_get_totalsize (current_fdt) + 0x100 + grub_strlen (linux_args);
   tmp_fdt = grub_malloc (tmp_size);
   if (!tmp_fdt)
     return grub_errno;
 
-  grub_memcpy (tmp_fdt, fdt_addr, grub_fdt_get_totalsize (fdt_addr));
+  grub_memcpy (tmp_fdt, current_fdt, grub_fdt_get_totalsize (current_fdt));
   grub_fdt_set_totalsize (tmp_fdt, tmp_size);
 
   /* Find or create '/chosen' node */
@@ -209,7 +210,7 @@ linux_prepare_fdt (void)
     }
 
   /* Copy updated FDT to its launch location */
-  grub_memcpy (fdt_addr, tmp_fdt, tmp_size);
+  grub_memcpy (target_fdt, tmp_fdt, tmp_size);
   grub_free (tmp_fdt);
 
   grub_dprintf ("loader", "FDT updated for Linux boot\n");
@@ -226,16 +227,17 @@ linux_boot (void)
 {
   kernel_entry_t linuxmain;
   int fdt_valid, atag_valid;
+  void *target_fdt = 0;
 
-  fdt_valid = (fdt_addr && grub_fdt_check_header_nosize (fdt_addr) == 0);
+  fdt_valid = (current_fdt && grub_fdt_check_header_nosize (current_fdt) == 0);
-  atag_valid = ((((grub_uint16_t *) fdt_addr)[3] & ~3) == 0x5440
+  atag_valid = ((((const grub_uint16_t *) current_fdt)[3] & ~3) == 0x5440
-		&& *((grub_uint32_t *) fdt_addr));
+		&& *((const grub_uint32_t *) current_fdt));
   grub_dprintf ("loader", "atag: %p, %x, %x, %s, %s\n",
-		fdt_addr,
+		current_fdt,
-		((grub_uint16_t *) fdt_addr)[3],
+		((const grub_uint16_t *) current_fdt)[3],
-		*((grub_uint32_t *) fdt_addr),
+		*((const grub_uint32_t *) current_fdt),
-		(char *) fdt_addr,
+		(const char *) current_fdt,
-		(char *) fdt_addr + 1);
+		(const char *) current_fdt + 1);
 
   if (!fdt_valid && machine_type == GRUB_ARM_MACHINE_TYPE_FDT)
     return grub_error (GRUB_ERR_FILE_NOT_FOUND,
@@ -245,23 +247,40 @@ linux_boot (void)
 
   grub_dprintf ("loader", "Kernel at: 0x%x\n", linux_addr);
 
+  if (fdt_valid || atag_valid)
+    {
+#ifdef GRUB_MACHINE_EFI
+      grub_size_t size;
+      if (fdt_valid)
+	size = grub_fdt_get_totalsize (fdt_addr);
+      else
+	size = 4 * get_atag_size (atag_orig);
+      size += grub_strlen (linux_args) + 256;
+      target_fdt = grub_efi_allocate_loader_memory (LINUX_FDT_PHYS_OFFSET, size);
+      if (!fdt_addr)
+	return grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
+#else
+      target_fdt = (void *) LINUX_FDT_ADDRESS;
+#endif
+    }
+
   if (fdt_valid)
     {
       grub_err_t err;
 
-      err = linux_prepare_fdt ();
+      err = linux_prepare_fdt (target_fdt);
       if (err)
 	return err;
-      grub_dprintf ("loader", "FDT @ 0x%p\n", fdt_addr);
+      grub_dprintf ("loader", "FDT @ %p\n", target_fdt);
     }
   else if (atag_valid)
     {
       grub_err_t err;
 
-      err = linux_prepare_atag ();
+      err = linux_prepare_atag (target_fdt);
       if (err)
 	return err;
-      grub_dprintf ("loader", "ATAG @ 0x%p\n", fdt_addr);
+      grub_dprintf ("loader", "ATAG @ %p\n", target_fdt);
     }
 
   grub_dprintf ("loader", "Jumping to Linux...\n");
@@ -285,7 +304,7 @@ linux_boot (void)
 
   grub_arm_disable_caches_mmu ();
 
-  linuxmain (0, machine_type, fdt_addr);
+  linuxmain (0, machine_type, target_fdt);
 
   return grub_error (GRUB_ERR_BAD_OS, "Linux call returned");
 }
@@ -444,11 +463,26 @@ fail:
 static grub_err_t
 load_dtb (grub_file_t dtb, int size)
 {
-  if ((grub_file_read (dtb, fdt_addr, size) != size)
+  void *new_fdt = grub_zalloc (size);
-      || (grub_fdt_check_header (fdt_addr, size) != 0))
+  if (!new_fdt)
+    return grub_errno;
+  grub_dprintf ("loader", "Loading device tree to %p\n",
+		new_fdt);
+  if ((grub_file_read (dtb, new_fdt, size) != size)
+      || (grub_fdt_check_header (new_fdt, size) != 0))
+    {
+      grub_free (new_fdt);
       return grub_error (GRUB_ERR_BAD_OS, N_("invalid device tree"));
+    }
+
+  grub_fdt_set_totalsize (new_fdt, size);
+  current_fdt = new_fdt;
+  /* 
+   * We've successfully loaded an FDT, so any machine type passed
+   * from firmware is now obsolete.
+   */
+  machine_type = GRUB_ARM_MACHINE_TYPE_FDT;
 
-  grub_fdt_set_totalsize (fdt_addr, size);
   return GRUB_ERR_NONE;
 }
 
@@ -464,42 +498,13 @@ grub_cmd_devicetree (grub_command_t cmd __attribute__ ((unused)),
 
   dtb = grub_file_open (argv[0]);
   if (!dtb)
-    goto out;
+    return grub_errno;
 
   size = grub_file_size (dtb);
   if (size == 0)
-    {
     grub_error (GRUB_ERR_BAD_OS, "empty file");
-      goto out;
+  else
-    }
-
-#ifdef GRUB_MACHINE_EFI
-  fdt_addr = grub_efi_allocate_loader_memory (LINUX_FDT_PHYS_OFFSET, size);
-  if (!fdt_addr)
-    {
-      grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
-      goto out;
-    }
-#else
-  fdt_addr = (void *) LINUX_FDT_ADDRESS;
-#endif
-
-  grub_dprintf ("loader", "Loading device tree to 0x%08x\n",
-		(grub_addr_t) fdt_addr);
     load_dtb (dtb, size);
-  if (grub_errno != GRUB_ERR_NONE)
-    {
-      fdt_addr = NULL;
-      goto out;
-    }
-
-  /* 
-   * We've successfully loaded an FDT, so any machine type passed
-   * from firmware is now obsolete.
-   */
-  machine_type = GRUB_ARM_MACHINE_TYPE_FDT;
-
- out:
   grub_file_close (dtb);
 
   return grub_errno;
@@ -517,7 +522,7 @@ GRUB_MOD_INIT (linux)
 					  /* TRANSLATORS: DTB stands for device tree blob.  */
 					  0, N_("Load DTB file."));
   my_mod = mod;
-  fdt_addr = (void *) grub_arm_firmware_get_boot_data ();
+  current_fdt = grub_arm_firmware_get_boot_data ();
   machine_type = grub_arm_firmware_get_machine_type ();
 }
 

grub-core/term/arm/cros.c

@@ -0,0 +1,117 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *
+ *  Copyright (C) 2012  Google Inc.
+ *  Copyright (C) 2016  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/ps2.h>
+#include <grub/fdtbus.h>
+#include <grub/err.h>
+#include <grub/machine/kernel.h>
+#include <grub/misc.h>
+#include <grub/term.h>
+#include <grub/time.h>
+#include <grub/fdtbus.h>
+#include <grub/arm/cros_ec.h>
+
+struct grub_ps2_state ps2_state;
+
+struct grub_cros_ec_keyscan old_scan;
+
+static grub_uint8_t map_code[GRUB_CROS_EC_KEYSCAN_COLS][GRUB_CROS_EC_KEYSCAN_ROWS];
+
+static grub_uint8_t e0_translate[16] =
+  {
+    0x1c, 0x1d, 0x35, 0x00,
+    0x38, 0x00, 0x47, 0x48,
+    0x49, 0x4b, 0x4d, 0x4f,
+    0x50, 0x51, 0x52, 0x53,
+  };
+
+/* If there is a character pending, return it;
+   otherwise return GRUB_TERM_NO_KEY.  */
+static int
+grub_cros_keyboard_getkey (struct grub_term_input *term __attribute__ ((unused)))
+{
+  struct grub_cros_ec_keyscan scan;
+  int i, j;
+  if (grub_cros_ec_scan_keyboard(&scan) < 0)
+	  return GRUB_TERM_NO_KEY;
+  for (i = 0; i < GRUB_CROS_EC_KEYSCAN_COLS; i++)
+    if (scan.data[i] ^ old_scan.data[i])
+      for (j = 0; j < GRUB_CROS_EC_KEYSCAN_ROWS; j++)
+	if ((scan.data[i] ^ old_scan.data[i]) & (1 << j))
+	  {
+	    grub_uint8_t code = map_code[i][j];
+	    int ret;
+	    grub_uint8_t brk = 0;
+	    if (!(scan.data[i] & (1 << j)))
+	      brk = 0x80;
+	    grub_dprintf ("cros_keyboard", "key <%d, %d> code %x\n", i, j, code);
+	    if (code < 0x60)
+	      ret = grub_ps2_process_incoming_byte (&ps2_state, code | brk);
+	    else if (code >= 0x60 && code < 0x70 && e0_translate[code - 0x60])
+	      {
+		grub_ps2_process_incoming_byte (&ps2_state, 0xe0);
+		ret = grub_ps2_process_incoming_byte (&ps2_state, e0_translate[code - 0x60] | brk);
+	      }
+	    else
+	      ret = GRUB_TERM_NO_KEY;
+	    old_scan.data[i] ^= (1 << j);
+	    if (ret != GRUB_TERM_NO_KEY)
+	      return ret;
+	  }
+  return GRUB_TERM_NO_KEY;
+}
+
+static struct grub_term_input grub_cros_keyboard_term =
+  {
+    .name = "cros_keyboard",
+    .getkey = grub_cros_keyboard_getkey
+  };
+
+static grub_err_t
+cros_attach(const struct grub_fdtbus_dev *dev __attribute__ ((unused)))
+{
+  grub_size_t keymap_size, i;
+  const grub_uint8_t *keymap = grub_fdtbus_get_prop (dev, "linux,keymap", &keymap_size);
+
+  if (keymap)
+    {
+      for (i = 0; i + 3 < keymap_size; i += 4)
+	if (keymap[i+1] < GRUB_CROS_EC_KEYSCAN_COLS && keymap[i] < GRUB_CROS_EC_KEYSCAN_ROWS
+	    && keymap[i+2] == 0 && keymap[i+3] < 0x80)
+	  map_code[keymap[i+1]][keymap[i]] = keymap[i+3];
+    }
+
+  ps2_state.current_set = 1;
+  ps2_state.at_keyboard_status = 0;
+  grub_term_register_input ("cros_keyboard", &grub_cros_keyboard_term);
+  return GRUB_ERR_NONE;
+}
+
+struct grub_fdtbus_driver cros =
+{
+  .compatible = "google,cros-ec-keyb",
+  .attach = cros_attach
+};
+
+void
+grub_cros_init (void)
+{
+  grub_fdtbus_register (&cros);
+}

grub-core/term/arm/cros_ec.c

@@ -0,0 +1,270 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *
+ *  Copyright (C) 2012  Google Inc.
+ *  Copyright (C) 2016  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/misc.h>
+#include <grub/arm/cros_ec.h>
+
+static grub_uint64_t
+grub_get_time_us (void)
+{
+  return 1000 * grub_get_time_ms();
+}
+
+static void
+grub_microsleep (grub_uint64_t len)
+{
+  grub_uint64_t end_time = grub_get_time_us () + len;
+  while (grub_get_time_us () < end_time)
+    grub_cpu_idle ();
+}
+
+volatile grub_uint32_t *spi = (volatile grub_uint32_t *) 0xff110000;
+
+static int
+spi_send (const void *data, grub_size_t sz)
+{
+  const grub_uint8_t *ptr = data, *end = ptr + sz;
+  spi[2] = 0;
+  spi[1] = sz - 1;
+  spi[0] = ((1 << 18) | spi[0]) & ~(1 << 19);
+  spi[2] = 1;
+  while (ptr < end)
+    {
+      while (spi[9] & 2);
+      spi[256] = *ptr++;
+    }
+  while (spi[9] & 1);
+  return 0;
+}
+
+static int
+spi_read (void *data, grub_size_t sz)
+{
+  grub_uint8_t *ptr = data, *end = ptr + sz;
+  spi[2] = 0;
+  spi[1] = sz - 1;
+  spi[0] = ((1 << 19) | spi[0]) & ~(1 << 18);
+  spi[2] = 1;
+  while (ptr < end)
+    {
+      while (spi[9] & 8);
+      *ptr++ = spi[512];
+    }
+  while (spi[9] & 1);
+  return 0;
+}
+
+static int
+spi_start (void)
+{
+  spi[3] = 1;
+  return 0;
+}
+
+static void
+spi_stop (void)
+{
+  spi[3] = 0;
+}
+
+#define uint8_t grub_uint8_t
+#define uint16_t grub_uint16_t
+#define uint32_t grub_uint32_t
+#define uint64_t grub_uint64_t
+#define mdelay grub_millisleep
+#define memcpy grub_memcpy
+
+static const uint64_t FramingTimeoutUs = 300 * 1000;
+
+static const uint8_t EcFramingByte = 0xec;
+
+#define EC_CMD_MKBP_STATE 0x60
+#define EC_CMD_VERSION0 0xdc
+
+static uint64_t last_transfer;
+
+static void stop_bus(void)
+{
+	spi_stop();
+	last_transfer = grub_get_time_us();
+}
+
+static int wait_for_frame(void)
+{
+	uint64_t start = grub_get_time_us();
+	uint8_t byte;
+	do {
+		if (spi_read(&byte, 1))
+			return -1;
+		if (byte != EcFramingByte &&
+			grub_get_time_us() - start > FramingTimeoutUs) {
+			grub_dprintf("cros", "Timeout waiting for framing byte.\n");
+			return -1;
+		}
+	} while (byte != EcFramingByte);
+	return 0;
+}
+
+/*
+ * Calculate a simple 8-bit checksum of a data block
+ *
+ * @param data	Data block to checksum
+ * @param size	Size of data block in bytes
+ * @return checksum value (0 to 255)
+ */
+static uint8_t cros_ec_calc_checksum(const void *data, int size)
+{
+	uint8_t csum;
+	const uint8_t *bytes = data;
+	int i;
+
+	for (i = csum = 0; i < size; i++)
+		csum += bytes[i];
+	return csum & 0xff;
+}
+
+enum {
+	// response, arglen
+	CROS_EC_SPI_IN_HDR_SIZE = 2,
+	// version, cmd, arglen
+	CROS_EC_SPI_OUT_HDR_SIZE = 3
+};
+
+static grub_uint8_t busbuf[256];
+#define MSG_BYTES ((int)sizeof (busbuf))
+
+static int ec_command(int cmd, int cmd_version,
+		      const void *dout, int dout_len,
+		      void *din, int din_len)
+{
+	uint8_t *bytes;
+
+	// Header + data + checksum.
+	uint32_t out_bytes = CROS_EC_SPI_OUT_HDR_SIZE + dout_len + 1;
+	uint32_t in_bytes = CROS_EC_SPI_IN_HDR_SIZE + din_len + 1;
+
+	/*
+	 * Sanity-check I/O sizes given transaction overhead in internal
+	 * buffers.
+	 */
+	if (out_bytes > MSG_BYTES) {
+		grub_dprintf("cros", "Cannot send %d bytes\n", dout_len);
+		return -1;
+	}
+	if (in_bytes > MSG_BYTES) {
+		grub_dprintf("cros", "Cannot receive %d bytes\n", din_len);
+		return -1;
+	}
+
+	// Prepare the output.
+	bytes = busbuf;
+	*bytes++ = EC_CMD_VERSION0 + cmd_version;
+	*bytes++ = cmd;
+	*bytes++ = dout_len;
+	memcpy(bytes, dout, dout_len);
+	bytes += dout_len;
+
+	*bytes++ = cros_ec_calc_checksum(busbuf,
+					 CROS_EC_SPI_OUT_HDR_SIZE + dout_len);
+
+	while (grub_get_time_us() - last_transfer < 200)
+		;
+
+	if (spi_start())
+		return -1;
+
+	// Allow EC to ramp up clock after being awoken.
+	// See chrome-os-partner:32223 for more details.
+	grub_microsleep (100);
+
+	if (spi_send(busbuf, out_bytes)) {
+		stop_bus();
+		return -1;
+	}
+
+	// Wait until the EC is ready.
+	if (wait_for_frame()) {
+		stop_bus();
+		return -1;
+	}
+
+	// Read the response code and the data length.
+	bytes = busbuf;
+	if (spi_read(bytes, 2)) {
+		stop_bus();
+		return -1;
+	}
+	uint8_t result = *bytes++;
+	uint8_t length = *bytes++;
+
+	// Make sure there's enough room for the data.
+	if (CROS_EC_SPI_IN_HDR_SIZE + length + 1 > MSG_BYTES) {
+		grub_dprintf("cros", "Received length %#02x too large\n",
+			     length);
+		stop_bus();
+		return -1;
+	}
+
+	// Read the data and the checksum, and finish up.
+	if (spi_read(bytes, length + 1)) {
+		stop_bus();
+		return -1;
+	}
+	bytes += length;
+	int expected = *bytes++;
+	stop_bus();
+
+	// Check the integrity of the response.
+	if (result != 0) {
+		grub_dprintf("cros", "Received bad result code %d\n", result);
+		return -result;
+	}
+
+	int csum = cros_ec_calc_checksum(busbuf,
+					 CROS_EC_SPI_IN_HDR_SIZE + length);
+
+	if (csum != expected) {
+		grub_dprintf("cros", "Invalid checksum rx %#02x, calced %#02x\n",
+			     expected, csum);
+		return -1;
+	}
+
+	// If the caller wants the response, copy it out for them.
+	if (length < din_len)
+		din_len = length;
+	if (din) {
+		memcpy(din, (uint8_t *)busbuf + CROS_EC_SPI_IN_HDR_SIZE,
+		       din_len);
+	}
+
+	return din_len;
+}
+
+int
+grub_cros_ec_scan_keyboard(struct grub_cros_ec_keyscan *scan)
+{
+	if (ec_command(EC_CMD_MKBP_STATE, 0, NULL, 0, scan,
+		       sizeof(*scan)) < (int)sizeof(*scan))
+		return -1;
+
+	return 0;
+}

grub-core/term/arm/pl050.c

@@ -0,0 +1,189 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/ps2.h>
+#include <grub/fdtbus.h>
+#include <grub/err.h>
+#include <grub/machine/kernel.h>
+#include <grub/at_keyboard.h>
+#include <grub/misc.h>
+#include <grub/term.h>
+#include <grub/time.h>
+#include <grub/ps2.h>
+#include <grub/fdtbus.h>
+
+static volatile grub_uint32_t *pl050_regs;
+
+struct grub_ps2_state ps2_state;
+
+static void
+keyboard_controller_wait_until_ready (void)
+{
+  while (! (pl050_regs[1] & 0x40));
+}
+
+static grub_uint8_t
+wait_ack (void)
+{
+  grub_uint64_t endtime;
+  grub_uint8_t ack;
+
+  endtime = grub_get_time_ms () + 20;
+  do
+    ack = pl050_regs[2];
+  while (ack != GRUB_AT_ACK && ack != GRUB_AT_NACK
+	 && grub_get_time_ms () < endtime);
+  return ack;
+}
+
+
+static int
+write_mode (int mode)
+{
+  unsigned i;
+  for (i = 0; i < GRUB_AT_TRIES; i++)
+    {
+      grub_uint8_t ack;
+      keyboard_controller_wait_until_ready ();
+      pl050_regs[2] = 0xf0;
+      keyboard_controller_wait_until_ready ();
+      pl050_regs[2] = mode;
+      keyboard_controller_wait_until_ready ();
+      ack = wait_ack ();
+      if (ack == GRUB_AT_NACK)
+	continue;
+      if (ack == GRUB_AT_ACK)
+	break;
+      return 0;
+    }
+
+  return (i != GRUB_AT_TRIES);
+}
+
+static int
+query_mode (void)
+{
+  grub_uint8_t ret;
+  int e;
+
+  e = write_mode (0);
+  if (!e)
+    return 0;
+
+  keyboard_controller_wait_until_ready ();
+
+  do
+    ret = pl050_regs[2];
+  while (ret == GRUB_AT_ACK);
+
+  /* QEMU translates the set even in no-translate mode.  */
+  if (ret == 0x43 || ret == 1)
+    return 1;
+  if (ret == 0x41 || ret == 2)
+    return 2;
+  if (ret == 0x3f || ret == 3)
+    return 3;
+  return 0;
+}
+
+static void
+set_scancodes (void)
+{
+  write_mode (2);
+  ps2_state.current_set = query_mode ();
+  grub_dprintf ("atkeyb", "returned set %d\n", ps2_state.current_set);
+  if (ps2_state.current_set == 2)
+    return;
+
+  write_mode (1);
+  ps2_state.current_set = query_mode ();
+  grub_dprintf ("atkeyb", "returned set %d\n", ps2_state.current_set);
+  if (ps2_state.current_set == 1)
+    return;
+  grub_dprintf ("atkeyb", "no supported scancode set found\n");
+}
+
+static void
+keyboard_controller_led (grub_uint8_t leds)
+{
+  keyboard_controller_wait_until_ready ();
+  pl050_regs[2] = 0xed;
+  keyboard_controller_wait_until_ready ();
+  pl050_regs[2] = leds & 0x7;
+}
+
+/* If there is a character pending, return it;
+   otherwise return GRUB_TERM_NO_KEY.  */
+static int
+grub_pl050_keyboard_getkey (struct grub_term_input *term __attribute__ ((unused)))
+{
+  grub_uint8_t at_key;
+  int ret;
+  grub_uint8_t old_led;
+
+  if (!(pl050_regs[1] & 0x10))
+    return -1;
+  at_key = pl050_regs[2];
+  old_led = ps2_state.led_status;
+
+  ret = grub_ps2_process_incoming_byte (&ps2_state, at_key);
+  if (old_led != ps2_state.led_status)
+    keyboard_controller_led (ps2_state.led_status);
+  return ret;
+}
+
+static struct grub_term_input grub_pl050_keyboard_term =
+  {
+    .name = "pl050_keyboard",
+    .getkey = grub_pl050_keyboard_getkey
+  };
+
+static grub_err_t
+pl050_attach(const struct grub_fdtbus_dev *dev)
+{
+  const grub_uint32_t *reg;
+  reg = grub_fdtbus_get_prop (dev, "reg", 0);
+
+  /* Mouse.  Nothing to do.  */
+  if (grub_be_to_cpu32 (*reg) == 0x7000)
+    return 0;
+
+  pl050_regs = grub_fdtbus_map_reg (dev, 0, 0);
+
+  if (!grub_fdtbus_is_mapping_valid (pl050_regs))
+    return grub_error (GRUB_ERR_IO, "could not map pl050");
+
+  ps2_state.at_keyboard_status = 0;
+  set_scancodes ();
+  keyboard_controller_led (ps2_state.led_status);
+
+  grub_term_register_input ("pl050_keyboard", &grub_pl050_keyboard_term);
+  return GRUB_ERR_NONE;
+}
+
+struct grub_fdtbus_driver pl050 =
+{
+  .compatible = "arm,pl050",
+  .attach = pl050_attach
+};
+
+void
+grub_pl050_init (void)
+{
+  grub_fdtbus_register (&pl050);
+}

grub-core/term/at_keyboard.c

@@ -22,212 +22,21 @@
 #include <grub/cpu/io.h>
 #include <grub/misc.h>
 #include <grub/term.h>
-#include <grub/keyboard_layouts.h>
 #include <grub/time.h>
 #include <grub/loader.h>
+#include <grub/ps2.h>
 
 GRUB_MOD_LICENSE ("GPLv3+");
 
-static short at_keyboard_status = 0;
-static int e0_received = 0;
-static int f0_received = 0;
-
-static grub_uint8_t led_status;
-
-#define KEYBOARD_LED_SCROLL		(1 << 0)
-#define KEYBOARD_LED_NUM		(1 << 1)
-#define KEYBOARD_LED_CAPS		(1 << 2)
-
 static grub_uint8_t grub_keyboard_controller_orig;
 static grub_uint8_t grub_keyboard_orig_set;
-static grub_uint8_t current_set; 
+struct grub_ps2_state ps2_state;
+
+static int ping_sent;
 
 static void
 grub_keyboard_controller_init (void);
 
-static const grub_uint8_t set1_mapping[128] =
-  {
-    /* 0x00 */ 0 /* Unused  */,               GRUB_KEYBOARD_KEY_ESCAPE, 
-    /* 0x02 */ GRUB_KEYBOARD_KEY_1,           GRUB_KEYBOARD_KEY_2, 
-    /* 0x04 */ GRUB_KEYBOARD_KEY_3,           GRUB_KEYBOARD_KEY_4, 
-    /* 0x06 */ GRUB_KEYBOARD_KEY_5,           GRUB_KEYBOARD_KEY_6, 
-    /* 0x08 */ GRUB_KEYBOARD_KEY_7,           GRUB_KEYBOARD_KEY_8, 
-    /* 0x0a */ GRUB_KEYBOARD_KEY_9,           GRUB_KEYBOARD_KEY_0, 
-    /* 0x0c */ GRUB_KEYBOARD_KEY_DASH,        GRUB_KEYBOARD_KEY_EQUAL, 
-    /* 0x0e */ GRUB_KEYBOARD_KEY_BACKSPACE,   GRUB_KEYBOARD_KEY_TAB, 
-    /* 0x10 */ GRUB_KEYBOARD_KEY_Q,           GRUB_KEYBOARD_KEY_W, 
-    /* 0x12 */ GRUB_KEYBOARD_KEY_E,           GRUB_KEYBOARD_KEY_R, 
-    /* 0x14 */ GRUB_KEYBOARD_KEY_T,           GRUB_KEYBOARD_KEY_Y, 
-    /* 0x16 */ GRUB_KEYBOARD_KEY_U,           GRUB_KEYBOARD_KEY_I, 
-    /* 0x18 */ GRUB_KEYBOARD_KEY_O,           GRUB_KEYBOARD_KEY_P, 
-    /* 0x1a */ GRUB_KEYBOARD_KEY_LBRACKET,    GRUB_KEYBOARD_KEY_RBRACKET, 
-    /* 0x1c */ GRUB_KEYBOARD_KEY_ENTER,       GRUB_KEYBOARD_KEY_LEFT_CTRL, 
-    /* 0x1e */ GRUB_KEYBOARD_KEY_A,           GRUB_KEYBOARD_KEY_S, 
-    /* 0x20 */ GRUB_KEYBOARD_KEY_D,           GRUB_KEYBOARD_KEY_F, 
-    /* 0x22 */ GRUB_KEYBOARD_KEY_G,           GRUB_KEYBOARD_KEY_H, 
-    /* 0x24 */ GRUB_KEYBOARD_KEY_J,           GRUB_KEYBOARD_KEY_K, 
-    /* 0x26 */ GRUB_KEYBOARD_KEY_L,           GRUB_KEYBOARD_KEY_SEMICOLON, 
-    /* 0x28 */ GRUB_KEYBOARD_KEY_DQUOTE,      GRUB_KEYBOARD_KEY_RQUOTE, 
-    /* 0x2a */ GRUB_KEYBOARD_KEY_LEFT_SHIFT,  GRUB_KEYBOARD_KEY_BACKSLASH, 
-    /* 0x2c */ GRUB_KEYBOARD_KEY_Z,           GRUB_KEYBOARD_KEY_X, 
-    /* 0x2e */ GRUB_KEYBOARD_KEY_C,           GRUB_KEYBOARD_KEY_V, 
-    /* 0x30 */ GRUB_KEYBOARD_KEY_B,           GRUB_KEYBOARD_KEY_N, 
-    /* 0x32 */ GRUB_KEYBOARD_KEY_M,           GRUB_KEYBOARD_KEY_COMMA, 
-    /* 0x34 */ GRUB_KEYBOARD_KEY_DOT,         GRUB_KEYBOARD_KEY_SLASH, 
-    /* 0x36 */ GRUB_KEYBOARD_KEY_RIGHT_SHIFT, GRUB_KEYBOARD_KEY_NUMMUL, 
-    /* 0x38 */ GRUB_KEYBOARD_KEY_LEFT_ALT,    GRUB_KEYBOARD_KEY_SPACE, 
-    /* 0x3a */ GRUB_KEYBOARD_KEY_CAPS_LOCK,   GRUB_KEYBOARD_KEY_F1, 
-    /* 0x3c */ GRUB_KEYBOARD_KEY_F2,          GRUB_KEYBOARD_KEY_F3, 
-    /* 0x3e */ GRUB_KEYBOARD_KEY_F4,          GRUB_KEYBOARD_KEY_F5, 
-    /* 0x40 */ GRUB_KEYBOARD_KEY_F6,          GRUB_KEYBOARD_KEY_F7, 
-    /* 0x42 */ GRUB_KEYBOARD_KEY_F8,          GRUB_KEYBOARD_KEY_F9, 
-    /* 0x44 */ GRUB_KEYBOARD_KEY_F10,         GRUB_KEYBOARD_KEY_NUM_LOCK, 
-    /* 0x46 */ GRUB_KEYBOARD_KEY_SCROLL_LOCK, GRUB_KEYBOARD_KEY_NUM7, 
-    /* 0x48 */ GRUB_KEYBOARD_KEY_NUM8,        GRUB_KEYBOARD_KEY_NUM9, 
-    /* 0x4a */ GRUB_KEYBOARD_KEY_NUMMINUS,    GRUB_KEYBOARD_KEY_NUM4, 
-    /* 0x4c */ GRUB_KEYBOARD_KEY_NUM5,        GRUB_KEYBOARD_KEY_NUM6, 
-    /* 0x4e */ GRUB_KEYBOARD_KEY_NUMPLUS,     GRUB_KEYBOARD_KEY_NUM1, 
-    /* 0x50 */ GRUB_KEYBOARD_KEY_NUM2,        GRUB_KEYBOARD_KEY_NUM3, 
-    /* 0x52 */ GRUB_KEYBOARD_KEY_NUMDOT,      GRUB_KEYBOARD_KEY_NUMDOT, 
-    /* 0x54 */ 0,                             0, 
-    /* 0x56 */ GRUB_KEYBOARD_KEY_102ND,       GRUB_KEYBOARD_KEY_F11, 
-    /* 0x58 */ GRUB_KEYBOARD_KEY_F12,         0,
-    /* 0x5a */ 0,                             0,
-    /* 0x5c */ 0,                             0,
-    /* 0x5e */ 0,                             0,
-    /* 0x60 */ 0,                             0,
-    /* 0x62 */ 0,                             0,
-    /* OLPC keys. Just mapped to normal keys.  */
-    /* 0x64 */ 0,                             GRUB_KEYBOARD_KEY_UP,
-    /* 0x66 */ GRUB_KEYBOARD_KEY_DOWN,        GRUB_KEYBOARD_KEY_LEFT,
-    /* 0x68 */ GRUB_KEYBOARD_KEY_RIGHT,       0,
-    /* 0x6a */ 0,                             0,
-    /* 0x6c */ 0,                             0,
-    /* 0x6e */ 0,                             0,
-    /* 0x70 */ 0,                             0,
-    /* 0x72 */ 0,                             GRUB_KEYBOARD_KEY_JP_RO,
-    /* 0x74 */ 0,                             0,
-    /* 0x76 */ 0,                             0,
-    /* 0x78 */ 0,                             0,
-    /* 0x7a */ 0,                             0,
-    /* 0x7c */ 0,                             GRUB_KEYBOARD_KEY_JP_YEN,
-    /* 0x7e */ GRUB_KEYBOARD_KEY_KPCOMMA
-  };
-
-static const struct
-{
-  grub_uint8_t from, to;
-} set1_e0_mapping[] = 
-  {
-    {0x1c, GRUB_KEYBOARD_KEY_NUMENTER},
-    {0x1d, GRUB_KEYBOARD_KEY_RIGHT_CTRL},
-    {0x35, GRUB_KEYBOARD_KEY_NUMSLASH }, 
-    {0x38, GRUB_KEYBOARD_KEY_RIGHT_ALT},
-    {0x47, GRUB_KEYBOARD_KEY_HOME}, 
-    {0x48, GRUB_KEYBOARD_KEY_UP},
-    {0x49, GRUB_KEYBOARD_KEY_PPAGE}, 
-    {0x4b, GRUB_KEYBOARD_KEY_LEFT},
-    {0x4d, GRUB_KEYBOARD_KEY_RIGHT},
-    {0x4f, GRUB_KEYBOARD_KEY_END}, 
-    {0x50, GRUB_KEYBOARD_KEY_DOWN},
-    {0x51, GRUB_KEYBOARD_KEY_NPAGE},
-    {0x52, GRUB_KEYBOARD_KEY_INSERT},
-    {0x53, GRUB_KEYBOARD_KEY_DELETE}, 
-  };
-
-static const grub_uint8_t set2_mapping[256] =
-  {
-    /* 0x00 */ 0,                             GRUB_KEYBOARD_KEY_F9,
-    /* 0x02 */ 0,                             GRUB_KEYBOARD_KEY_F5,
-    /* 0x04 */ GRUB_KEYBOARD_KEY_F3,          GRUB_KEYBOARD_KEY_F1,
-    /* 0x06 */ GRUB_KEYBOARD_KEY_F2,          GRUB_KEYBOARD_KEY_F12,
-    /* 0x08 */ 0,                             GRUB_KEYBOARD_KEY_F10,
-    /* 0x0a */ GRUB_KEYBOARD_KEY_F8,          GRUB_KEYBOARD_KEY_F6,
-    /* 0x0c */ GRUB_KEYBOARD_KEY_F4,          GRUB_KEYBOARD_KEY_TAB,
-    /* 0x0e */ GRUB_KEYBOARD_KEY_RQUOTE,      0,
-    /* 0x10 */ 0,                             GRUB_KEYBOARD_KEY_LEFT_ALT,
-    /* 0x12 */ GRUB_KEYBOARD_KEY_LEFT_SHIFT,  0,
-    /* 0x14 */ GRUB_KEYBOARD_KEY_LEFT_CTRL,   GRUB_KEYBOARD_KEY_Q,
-    /* 0x16 */ GRUB_KEYBOARD_KEY_1,           0,
-    /* 0x18 */ 0,                             0,
-    /* 0x1a */ GRUB_KEYBOARD_KEY_Z,           GRUB_KEYBOARD_KEY_S,
-    /* 0x1c */ GRUB_KEYBOARD_KEY_A,           GRUB_KEYBOARD_KEY_W,
-    /* 0x1e */ GRUB_KEYBOARD_KEY_2,           0,
-    /* 0x20 */ 0,                             GRUB_KEYBOARD_KEY_C,
-    /* 0x22 */ GRUB_KEYBOARD_KEY_X,           GRUB_KEYBOARD_KEY_D,
-    /* 0x24 */ GRUB_KEYBOARD_KEY_E,           GRUB_KEYBOARD_KEY_4,
-    /* 0x26 */ GRUB_KEYBOARD_KEY_3,           0,
-    /* 0x28 */ 0,                             GRUB_KEYBOARD_KEY_SPACE,
-    /* 0x2a */ GRUB_KEYBOARD_KEY_V,           GRUB_KEYBOARD_KEY_F,
-    /* 0x2c */ GRUB_KEYBOARD_KEY_T,           GRUB_KEYBOARD_KEY_R,
-    /* 0x2e */ GRUB_KEYBOARD_KEY_5,           0,
-    /* 0x30 */ 0,                             GRUB_KEYBOARD_KEY_N,
-    /* 0x32 */ GRUB_KEYBOARD_KEY_B,           GRUB_KEYBOARD_KEY_H,
-    /* 0x34 */ GRUB_KEYBOARD_KEY_G,           GRUB_KEYBOARD_KEY_Y,
-    /* 0x36 */ GRUB_KEYBOARD_KEY_6,           0,
-    /* 0x38 */ 0,                             0,
-    /* 0x3a */ GRUB_KEYBOARD_KEY_M,           GRUB_KEYBOARD_KEY_J,
-    /* 0x3c */ GRUB_KEYBOARD_KEY_U,           GRUB_KEYBOARD_KEY_7,
-    /* 0x3e */ GRUB_KEYBOARD_KEY_8,           0,
-    /* 0x40 */ 0,                             GRUB_KEYBOARD_KEY_COMMA,
-    /* 0x42 */ GRUB_KEYBOARD_KEY_K,           GRUB_KEYBOARD_KEY_I,
-    /* 0x44 */ GRUB_KEYBOARD_KEY_O,           GRUB_KEYBOARD_KEY_0,
-    /* 0x46 */ GRUB_KEYBOARD_KEY_9,           0,
-    /* 0x48 */ 0,                             GRUB_KEYBOARD_KEY_DOT,
-    /* 0x4a */ GRUB_KEYBOARD_KEY_SLASH,       GRUB_KEYBOARD_KEY_L,
-    /* 0x4c */ GRUB_KEYBOARD_KEY_SEMICOLON,   GRUB_KEYBOARD_KEY_P,
-    /* 0x4e */ GRUB_KEYBOARD_KEY_DASH,        0,
-    /* 0x50 */ 0,                             GRUB_KEYBOARD_KEY_JP_RO,
-    /* 0x52 */ GRUB_KEYBOARD_KEY_DQUOTE,      0,
-    /* 0x54 */ GRUB_KEYBOARD_KEY_LBRACKET,    GRUB_KEYBOARD_KEY_EQUAL,
-    /* 0x56 */ 0,                             0,
-    /* 0x58 */ GRUB_KEYBOARD_KEY_CAPS_LOCK,   GRUB_KEYBOARD_KEY_RIGHT_SHIFT,
-    /* 0x5a */ GRUB_KEYBOARD_KEY_ENTER,       GRUB_KEYBOARD_KEY_RBRACKET,
-    /* 0x5c */ 0,                             GRUB_KEYBOARD_KEY_BACKSLASH,
-    /* 0x5e */ 0,                             0,
-    /* 0x60 */ 0,                             GRUB_KEYBOARD_KEY_102ND,
-    /* 0x62 */ 0,                             0,
-    /* 0x64 */ 0,                             0,
-    /* 0x66 */ GRUB_KEYBOARD_KEY_BACKSPACE,   0,
-    /* 0x68 */ 0,                             GRUB_KEYBOARD_KEY_NUM1,
-    /* 0x6a */ GRUB_KEYBOARD_KEY_JP_YEN,      GRUB_KEYBOARD_KEY_NUM4,
-    /* 0x6c */ GRUB_KEYBOARD_KEY_NUM7,        GRUB_KEYBOARD_KEY_KPCOMMA,
-    /* 0x6e */ 0,                             0,
-    /* 0x70 */ GRUB_KEYBOARD_KEY_NUMDOT,      GRUB_KEYBOARD_KEY_NUM0,
-    /* 0x72 */ GRUB_KEYBOARD_KEY_NUM2,        GRUB_KEYBOARD_KEY_NUM5,
-    /* 0x74 */ GRUB_KEYBOARD_KEY_NUM6,        GRUB_KEYBOARD_KEY_NUM8,
-    /* 0x76 */ GRUB_KEYBOARD_KEY_ESCAPE,      GRUB_KEYBOARD_KEY_NUM_LOCK,
-    /* 0x78 */ GRUB_KEYBOARD_KEY_F11,         GRUB_KEYBOARD_KEY_NUMPLUS,
-    /* 0x7a */ GRUB_KEYBOARD_KEY_NUM3,        GRUB_KEYBOARD_KEY_NUMMINUS,
-    /* 0x7c */ GRUB_KEYBOARD_KEY_NUMMUL,      GRUB_KEYBOARD_KEY_NUM9,
-    /* 0x7e */ GRUB_KEYBOARD_KEY_SCROLL_LOCK, 0,
-    /* 0x80 */ 0,                             0, 
-    /* 0x82 */ 0,                             GRUB_KEYBOARD_KEY_F7,
-  };
-
-static const struct
-{
-  grub_uint8_t from, to;
-} set2_e0_mapping[] = 
-  {
-    {0x11, GRUB_KEYBOARD_KEY_RIGHT_ALT},
-    {0x14, GRUB_KEYBOARD_KEY_RIGHT_CTRL},
-    {0x4a, GRUB_KEYBOARD_KEY_NUMSLASH},
-    {0x5a, GRUB_KEYBOARD_KEY_NUMENTER},
-    {0x69, GRUB_KEYBOARD_KEY_END},
-    {0x6b, GRUB_KEYBOARD_KEY_LEFT},
-    {0x6c, GRUB_KEYBOARD_KEY_HOME},
-    {0x70, GRUB_KEYBOARD_KEY_INSERT},
-    {0x71, GRUB_KEYBOARD_KEY_DELETE},
-    {0x72, GRUB_KEYBOARD_KEY_DOWN},
-    {0x74, GRUB_KEYBOARD_KEY_RIGHT},
-    {0x75, GRUB_KEYBOARD_KEY_UP},
-    {0x7a, GRUB_KEYBOARD_KEY_NPAGE},
-    {0x7d, GRUB_KEYBOARD_KEY_PPAGE},
-  };
-
-static int ping_sent;
-
 static void
 keyboard_controller_wait_until_ready (void)
 {
@@ -350,12 +159,12 @@ set_scancodes (void)
   if (!grub_keyboard_orig_set)
     {
       grub_dprintf ("atkeyb", "No sets support assumed\n");
-      current_set = 1;
+      ps2_state.current_set = 1;
       return;
     }
 
 #if !USE_SCANCODE_SET
-  current_set = 1;
+  ps2_state.current_set = 1;
   return;
 #else
 
@@ -363,15 +172,15 @@ set_scancodes (void)
 				  & ~KEYBOARD_AT_TRANSLATE);
 
   write_mode (2);
-  current_set = query_mode ();
+  ps2_state.current_set = query_mode ();
-  grub_dprintf ("atkeyb", "returned set %d\n", current_set);
+  grub_dprintf ("atkeyb", "returned set %d\n", ps2_state.current_set);
-  if (current_set == 2)
+  if (ps2_state.current_set == 2)
     return;
 
   write_mode (1);
-  current_set = query_mode ();
+  ps2_state.current_set = query_mode ();
-  grub_dprintf ("atkeyb", "returned set %d\n", current_set);
+  grub_dprintf ("atkeyb", "returned set %d\n", ps2_state.current_set);
-  if (current_set == 1)
+  if (ps2_state.current_set == 1)
     return;
   grub_dprintf ("atkeyb", "no supported scancode set found\n");
 #endif
@@ -386,164 +195,10 @@ keyboard_controller_led (grub_uint8_t leds)
   grub_outb (leds & 0x7, KEYBOARD_REG_DATA);
 }
 
-static int
-fetch_key (int *is_break)
-{
-  int was_ext = 0;
-  grub_uint8_t at_key;
-  int ret = 0;
-
-  if (! KEYBOARD_ISREADY (grub_inb (KEYBOARD_REG_STATUS)))
-    return -1;
-  at_key = grub_inb (KEYBOARD_REG_DATA);
-  /* May happen if no keyboard is connected. Just ignore this.  */
-  if (at_key == 0xff)
-    return -1;
-  if (at_key == 0xe0)
-    {
-      e0_received = 1;
-      return -1;
-    }
-
-  if ((current_set == 2 || current_set == 3) && at_key == 0xf0)
-    {
-      f0_received = 1;
-      return -1;
-    }
-
-  /* Setting LEDs may generate ACKs.  */
-  if (at_key == GRUB_AT_ACK)
-    return -1;
-
-  was_ext = e0_received;
-  e0_received = 0;
-
-  switch (current_set)
-    {
-    case 1:
-      *is_break = !!(at_key & 0x80);
-      if (!was_ext)
-	ret = set1_mapping[at_key & 0x7f];
-      else
-	{
-	  unsigned i;
-	  for (i = 0; i < ARRAY_SIZE (set1_e0_mapping); i++)
-	    if (set1_e0_mapping[i].from == (at_key & 0x7f))
-	      {
-		ret = set1_e0_mapping[i].to;
-		break;
-	      }
-	}
-      break;
-    case 2:
-      *is_break = f0_received;
-      f0_received = 0;
-      if (!was_ext)
-	ret = set2_mapping[at_key];
-      else
-	{
-	  unsigned i;
-	  for (i = 0; i < ARRAY_SIZE (set2_e0_mapping); i++)
-	    if (set2_e0_mapping[i].from == at_key)
-	      {
-		ret = set2_e0_mapping[i].to;
-		break;
-	      }
-	}	
-      break;
-    default:
-      return -1;
-    }
-  if (!ret)
-    {
-      if (was_ext)
-	grub_dprintf ("atkeyb", "Unknown key 0xe0+0x%02x from set %d\n",
-		      at_key, current_set);
-      else
-	grub_dprintf ("atkeyb", "Unknown key 0x%02x from set %d\n",
-		      at_key, current_set);
-      return -1;
-    }
-  return ret;
-}
-
-/* FIXME: This should become an interrupt service routine.  For now
-   it's just used to catch events from control keys.  */
-static int
-grub_keyboard_isr (grub_keyboard_key_t key, int is_break)
-{
-  if (!is_break)
-    switch (key)
-      {
-      case GRUB_KEYBOARD_KEY_LEFT_SHIFT:
-	at_keyboard_status |= GRUB_TERM_STATUS_LSHIFT;
-	return 1;
-      case GRUB_KEYBOARD_KEY_RIGHT_SHIFT:
-	at_keyboard_status |= GRUB_TERM_STATUS_RSHIFT;
-	return 1;
-      case GRUB_KEYBOARD_KEY_LEFT_CTRL:
-	at_keyboard_status |= GRUB_TERM_STATUS_LCTRL;
-	return 1;
-      case GRUB_KEYBOARD_KEY_RIGHT_CTRL:
-	at_keyboard_status |= GRUB_TERM_STATUS_RCTRL;
-	return 1;
-      case GRUB_KEYBOARD_KEY_RIGHT_ALT:
-	at_keyboard_status |= GRUB_TERM_STATUS_RALT;
-	return 1;
-      case GRUB_KEYBOARD_KEY_LEFT_ALT:
-	at_keyboard_status |= GRUB_TERM_STATUS_LALT;
-	return 1;
-      default:
-	return 0;
-      }
-  else
-    switch (key)
-      {
-      case GRUB_KEYBOARD_KEY_LEFT_SHIFT:
-	at_keyboard_status &= ~GRUB_TERM_STATUS_LSHIFT;
-	return 1;
-      case GRUB_KEYBOARD_KEY_RIGHT_SHIFT:
-	at_keyboard_status &= ~GRUB_TERM_STATUS_RSHIFT;
-	return 1;
-      case GRUB_KEYBOARD_KEY_LEFT_CTRL:
-	at_keyboard_status &= ~GRUB_TERM_STATUS_LCTRL;
-	return 1;
-      case GRUB_KEYBOARD_KEY_RIGHT_CTRL:
-	at_keyboard_status &= ~GRUB_TERM_STATUS_RCTRL;
-	return 1;
-      case GRUB_KEYBOARD_KEY_RIGHT_ALT:
-	at_keyboard_status &= ~GRUB_TERM_STATUS_RALT;
-	return 1;
-      case GRUB_KEYBOARD_KEY_LEFT_ALT:
-	at_keyboard_status &= ~GRUB_TERM_STATUS_LALT;
-	return 1;
-      default:
-	return 0;
-      }
-}
-
-/* If there is a raw key pending, return it; otherwise return -1.  */
-static int
-grub_keyboard_getkey (void)
-{
-  int key;
-  int is_break = 0;
-
-  key = fetch_key (&is_break);
-  if (key == -1)
-    return -1;
-
-  if (grub_keyboard_isr (key, is_break))
-    return -1;
-  if (is_break)
-    return -1;
-  return key;
-}
-
 int
 grub_at_keyboard_is_alive (void)
 {
-  if (current_set != 0)
+  if (ps2_state.current_set != 0)
     return 1;
   if (ping_sent
       && KEYBOARD_COMMAND_ISREADY (grub_inb (KEYBOARD_REG_STATUS))
@@ -566,51 +221,28 @@ grub_at_keyboard_is_alive (void)
 static int
 grub_at_keyboard_getkey (struct grub_term_input *term __attribute__ ((unused)))
 {
-  int code;
+  grub_uint8_t at_key;
+  int ret;
+  grub_uint8_t old_led;
 
   if (!grub_at_keyboard_is_alive ())
     return GRUB_TERM_NO_KEY;
 
-  code = grub_keyboard_getkey ();
+  if (! KEYBOARD_ISREADY (grub_inb (KEYBOARD_REG_STATUS)))
-  if (code == -1)
+    return -1;
-    return GRUB_TERM_NO_KEY;
+  at_key = grub_inb (KEYBOARD_REG_DATA);
-#ifdef DEBUG_AT_KEYBOARD
+  old_led = ps2_state.led_status;
-  grub_dprintf ("atkeyb", "Detected key 0x%x\n", code);
-#endif
-  switch (code)
-    {
-      case GRUB_KEYBOARD_KEY_CAPS_LOCK:
-	at_keyboard_status ^= GRUB_TERM_STATUS_CAPS;
-	led_status ^= KEYBOARD_LED_CAPS;
-	keyboard_controller_led (led_status);
 
-#ifdef DEBUG_AT_KEYBOARD
+  ret = grub_ps2_process_incoming_byte (&ps2_state, at_key);
-	grub_dprintf ("atkeyb", "caps_lock = %d\n", !!(at_keyboard_status & GRUB_KEYBOARD_STATUS_CAPS_LOCK));
+  if (old_led != ps2_state.led_status)
-#endif
+    keyboard_controller_led (ps2_state.led_status);
-	return GRUB_TERM_NO_KEY;
+  return ret;
-      case GRUB_KEYBOARD_KEY_NUM_LOCK:
-	at_keyboard_status ^= GRUB_TERM_STATUS_NUM;
-	led_status ^= KEYBOARD_LED_NUM;
-	keyboard_controller_led (led_status);
-
-#ifdef DEBUG_AT_KEYBOARD
-	grub_dprintf ("atkeyb", "num_lock = %d\n", !!(at_keyboard_status & GRUB_KEYBOARD_STATUS_NUM_LOCK));
-#endif
-	return GRUB_TERM_NO_KEY;
-      case GRUB_KEYBOARD_KEY_SCROLL_LOCK:
-	at_keyboard_status ^= GRUB_TERM_STATUS_SCROLL;
-	led_status ^= KEYBOARD_LED_SCROLL;
-	keyboard_controller_led (led_status);
-	return GRUB_TERM_NO_KEY;
-      default:
-	return grub_term_map_key (code, at_keyboard_status);
-    }
 }
 
 static void
 grub_keyboard_controller_init (void)
 {
-  at_keyboard_status = 0;
+  ps2_state.at_keyboard_status = 0;
   /* Drain input buffer. */
   while (1)
     {
@@ -632,13 +264,13 @@ grub_keyboard_controller_init (void)
   grub_keyboard_orig_set = query_mode ();
 #endif
   set_scancodes ();
-  keyboard_controller_led (led_status);
+  keyboard_controller_led (ps2_state.led_status);
 }
 
 static grub_err_t
 grub_keyboard_controller_fini (struct grub_term_input *term __attribute__ ((unused)))
 {
-  if (current_set == 0)
+  if (ps2_state.current_set == 0)
     return GRUB_ERR_NONE;
   if (grub_keyboard_orig_set)
     write_mode (grub_keyboard_orig_set);
@@ -655,7 +287,7 @@ grub_at_fini_hw (int noreturn __attribute__ ((unused)))
 static grub_err_t
 grub_at_restore_hw (void)
 {
-  if (current_set == 0)
+  if (ps2_state.current_set == 0)
     return GRUB_ERR_NONE;
 
   /* Drain input buffer. */
@@ -668,7 +300,7 @@ grub_at_restore_hw (void)
       grub_inb (KEYBOARD_REG_DATA);
     }
   set_scancodes ();
-  keyboard_controller_led (led_status);
+  keyboard_controller_led (ps2_state.led_status);
 
   return GRUB_ERR_NONE;
 }

grub-core/term/i386/coreboot/cbmemc.c

@@ -23,7 +23,7 @@
 #include <grub/time.h>
 #include <grub/terminfo.h>
 #include <grub/dl.h>
-#include <grub/i386/coreboot/lbio.h>
+#include <grub/coreboot/lbio.h>
 #include <grub/command.h>
 #include <grub/normal.h>
 

grub-core/term/ps2.c

@@ -0,0 +1,387 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/term.h>
+#include <grub/keyboard_layouts.h>
+#include <grub/ps2.h>
+
+#define KEYBOARD_LED_SCROLL		(1 << 0)
+#define KEYBOARD_LED_NUM		(1 << 1)
+#define KEYBOARD_LED_CAPS		(1 << 2)
+
+static const grub_uint8_t set1_mapping[128] =
+  {
+    /* 0x00 */ 0 /* Unused  */,               GRUB_KEYBOARD_KEY_ESCAPE, 
+    /* 0x02 */ GRUB_KEYBOARD_KEY_1,           GRUB_KEYBOARD_KEY_2, 
+    /* 0x04 */ GRUB_KEYBOARD_KEY_3,           GRUB_KEYBOARD_KEY_4, 
+    /* 0x06 */ GRUB_KEYBOARD_KEY_5,           GRUB_KEYBOARD_KEY_6, 
+    /* 0x08 */ GRUB_KEYBOARD_KEY_7,           GRUB_KEYBOARD_KEY_8, 
+    /* 0x0a */ GRUB_KEYBOARD_KEY_9,           GRUB_KEYBOARD_KEY_0, 
+    /* 0x0c */ GRUB_KEYBOARD_KEY_DASH,        GRUB_KEYBOARD_KEY_EQUAL, 
+    /* 0x0e */ GRUB_KEYBOARD_KEY_BACKSPACE,   GRUB_KEYBOARD_KEY_TAB, 
+    /* 0x10 */ GRUB_KEYBOARD_KEY_Q,           GRUB_KEYBOARD_KEY_W, 
+    /* 0x12 */ GRUB_KEYBOARD_KEY_E,           GRUB_KEYBOARD_KEY_R, 
+    /* 0x14 */ GRUB_KEYBOARD_KEY_T,           GRUB_KEYBOARD_KEY_Y, 
+    /* 0x16 */ GRUB_KEYBOARD_KEY_U,           GRUB_KEYBOARD_KEY_I, 
+    /* 0x18 */ GRUB_KEYBOARD_KEY_O,           GRUB_KEYBOARD_KEY_P, 
+    /* 0x1a */ GRUB_KEYBOARD_KEY_LBRACKET,    GRUB_KEYBOARD_KEY_RBRACKET, 
+    /* 0x1c */ GRUB_KEYBOARD_KEY_ENTER,       GRUB_KEYBOARD_KEY_LEFT_CTRL, 
+    /* 0x1e */ GRUB_KEYBOARD_KEY_A,           GRUB_KEYBOARD_KEY_S, 
+    /* 0x20 */ GRUB_KEYBOARD_KEY_D,           GRUB_KEYBOARD_KEY_F, 
+    /* 0x22 */ GRUB_KEYBOARD_KEY_G,           GRUB_KEYBOARD_KEY_H, 
+    /* 0x24 */ GRUB_KEYBOARD_KEY_J,           GRUB_KEYBOARD_KEY_K, 
+    /* 0x26 */ GRUB_KEYBOARD_KEY_L,           GRUB_KEYBOARD_KEY_SEMICOLON, 
+    /* 0x28 */ GRUB_KEYBOARD_KEY_DQUOTE,      GRUB_KEYBOARD_KEY_RQUOTE, 
+    /* 0x2a */ GRUB_KEYBOARD_KEY_LEFT_SHIFT,  GRUB_KEYBOARD_KEY_BACKSLASH, 
+    /* 0x2c */ GRUB_KEYBOARD_KEY_Z,           GRUB_KEYBOARD_KEY_X, 
+    /* 0x2e */ GRUB_KEYBOARD_KEY_C,           GRUB_KEYBOARD_KEY_V, 
+    /* 0x30 */ GRUB_KEYBOARD_KEY_B,           GRUB_KEYBOARD_KEY_N, 
+    /* 0x32 */ GRUB_KEYBOARD_KEY_M,           GRUB_KEYBOARD_KEY_COMMA, 
+    /* 0x34 */ GRUB_KEYBOARD_KEY_DOT,         GRUB_KEYBOARD_KEY_SLASH, 
+    /* 0x36 */ GRUB_KEYBOARD_KEY_RIGHT_SHIFT, GRUB_KEYBOARD_KEY_NUMMUL, 
+    /* 0x38 */ GRUB_KEYBOARD_KEY_LEFT_ALT,    GRUB_KEYBOARD_KEY_SPACE, 
+    /* 0x3a */ GRUB_KEYBOARD_KEY_CAPS_LOCK,   GRUB_KEYBOARD_KEY_F1, 
+    /* 0x3c */ GRUB_KEYBOARD_KEY_F2,          GRUB_KEYBOARD_KEY_F3, 
+    /* 0x3e */ GRUB_KEYBOARD_KEY_F4,          GRUB_KEYBOARD_KEY_F5, 
+    /* 0x40 */ GRUB_KEYBOARD_KEY_F6,          GRUB_KEYBOARD_KEY_F7, 
+    /* 0x42 */ GRUB_KEYBOARD_KEY_F8,          GRUB_KEYBOARD_KEY_F9, 
+    /* 0x44 */ GRUB_KEYBOARD_KEY_F10,         GRUB_KEYBOARD_KEY_NUM_LOCK, 
+    /* 0x46 */ GRUB_KEYBOARD_KEY_SCROLL_LOCK, GRUB_KEYBOARD_KEY_NUM7, 
+    /* 0x48 */ GRUB_KEYBOARD_KEY_NUM8,        GRUB_KEYBOARD_KEY_NUM9, 
+    /* 0x4a */ GRUB_KEYBOARD_KEY_NUMMINUS,    GRUB_KEYBOARD_KEY_NUM4, 
+    /* 0x4c */ GRUB_KEYBOARD_KEY_NUM5,        GRUB_KEYBOARD_KEY_NUM6, 
+    /* 0x4e */ GRUB_KEYBOARD_KEY_NUMPLUS,     GRUB_KEYBOARD_KEY_NUM1, 
+    /* 0x50 */ GRUB_KEYBOARD_KEY_NUM2,        GRUB_KEYBOARD_KEY_NUM3, 
+    /* 0x52 */ GRUB_KEYBOARD_KEY_NUMDOT,      GRUB_KEYBOARD_KEY_NUMDOT, 
+    /* 0x54 */ 0,                             0, 
+    /* 0x56 */ GRUB_KEYBOARD_KEY_102ND,       GRUB_KEYBOARD_KEY_F11, 
+    /* 0x58 */ GRUB_KEYBOARD_KEY_F12,         0,
+    /* 0x5a */ 0,                             0,
+    /* 0x5c */ 0,                             0,
+    /* 0x5e */ 0,                             0,
+    /* 0x60 */ 0,                             0,
+    /* 0x62 */ 0,                             0,
+    /* OLPC keys. Just mapped to normal keys.  */
+    /* 0x64 */ 0,                             GRUB_KEYBOARD_KEY_UP,
+    /* 0x66 */ GRUB_KEYBOARD_KEY_DOWN,        GRUB_KEYBOARD_KEY_LEFT,
+    /* 0x68 */ GRUB_KEYBOARD_KEY_RIGHT,       0,
+    /* 0x6a */ 0,                             0,
+    /* 0x6c */ 0,                             0,
+    /* 0x6e */ 0,                             0,
+    /* 0x70 */ 0,                             0,
+    /* 0x72 */ 0,                             GRUB_KEYBOARD_KEY_JP_RO,
+    /* 0x74 */ 0,                             0,
+    /* 0x76 */ 0,                             0,
+    /* 0x78 */ 0,                             0,
+    /* 0x7a */ 0,                             0,
+    /* 0x7c */ 0,                             GRUB_KEYBOARD_KEY_JP_YEN,
+    /* 0x7e */ GRUB_KEYBOARD_KEY_KPCOMMA
+  };
+
+static const struct
+{
+  grub_uint8_t from, to;
+} set1_e0_mapping[] = 
+  {
+    {0x1c, GRUB_KEYBOARD_KEY_NUMENTER},
+    {0x1d, GRUB_KEYBOARD_KEY_RIGHT_CTRL},
+    {0x35, GRUB_KEYBOARD_KEY_NUMSLASH }, 
+    {0x38, GRUB_KEYBOARD_KEY_RIGHT_ALT},
+    {0x47, GRUB_KEYBOARD_KEY_HOME}, 
+    {0x48, GRUB_KEYBOARD_KEY_UP},
+    {0x49, GRUB_KEYBOARD_KEY_PPAGE}, 
+    {0x4b, GRUB_KEYBOARD_KEY_LEFT},
+    {0x4d, GRUB_KEYBOARD_KEY_RIGHT},
+    {0x4f, GRUB_KEYBOARD_KEY_END}, 
+    {0x50, GRUB_KEYBOARD_KEY_DOWN},
+    {0x51, GRUB_KEYBOARD_KEY_NPAGE},
+    {0x52, GRUB_KEYBOARD_KEY_INSERT},
+    {0x53, GRUB_KEYBOARD_KEY_DELETE}, 
+  };
+
+static const grub_uint8_t set2_mapping[256] =
+  {
+    /* 0x00 */ 0,                             GRUB_KEYBOARD_KEY_F9,
+    /* 0x02 */ 0,                             GRUB_KEYBOARD_KEY_F5,
+    /* 0x04 */ GRUB_KEYBOARD_KEY_F3,          GRUB_KEYBOARD_KEY_F1,
+    /* 0x06 */ GRUB_KEYBOARD_KEY_F2,          GRUB_KEYBOARD_KEY_F12,
+    /* 0x08 */ 0,                             GRUB_KEYBOARD_KEY_F10,
+    /* 0x0a */ GRUB_KEYBOARD_KEY_F8,          GRUB_KEYBOARD_KEY_F6,
+    /* 0x0c */ GRUB_KEYBOARD_KEY_F4,          GRUB_KEYBOARD_KEY_TAB,
+    /* 0x0e */ GRUB_KEYBOARD_KEY_RQUOTE,      0,
+    /* 0x10 */ 0,                             GRUB_KEYBOARD_KEY_LEFT_ALT,
+    /* 0x12 */ GRUB_KEYBOARD_KEY_LEFT_SHIFT,  0,
+    /* 0x14 */ GRUB_KEYBOARD_KEY_LEFT_CTRL,   GRUB_KEYBOARD_KEY_Q,
+    /* 0x16 */ GRUB_KEYBOARD_KEY_1,           0,
+    /* 0x18 */ 0,                             0,
+    /* 0x1a */ GRUB_KEYBOARD_KEY_Z,           GRUB_KEYBOARD_KEY_S,
+    /* 0x1c */ GRUB_KEYBOARD_KEY_A,           GRUB_KEYBOARD_KEY_W,
+    /* 0x1e */ GRUB_KEYBOARD_KEY_2,           0,
+    /* 0x20 */ 0,                             GRUB_KEYBOARD_KEY_C,
+    /* 0x22 */ GRUB_KEYBOARD_KEY_X,           GRUB_KEYBOARD_KEY_D,
+    /* 0x24 */ GRUB_KEYBOARD_KEY_E,           GRUB_KEYBOARD_KEY_4,
+    /* 0x26 */ GRUB_KEYBOARD_KEY_3,           0,
+    /* 0x28 */ 0,                             GRUB_KEYBOARD_KEY_SPACE,
+    /* 0x2a */ GRUB_KEYBOARD_KEY_V,           GRUB_KEYBOARD_KEY_F,
+    /* 0x2c */ GRUB_KEYBOARD_KEY_T,           GRUB_KEYBOARD_KEY_R,
+    /* 0x2e */ GRUB_KEYBOARD_KEY_5,           0,
+    /* 0x30 */ 0,                             GRUB_KEYBOARD_KEY_N,
+    /* 0x32 */ GRUB_KEYBOARD_KEY_B,           GRUB_KEYBOARD_KEY_H,
+    /* 0x34 */ GRUB_KEYBOARD_KEY_G,           GRUB_KEYBOARD_KEY_Y,
+    /* 0x36 */ GRUB_KEYBOARD_KEY_6,           0,
+    /* 0x38 */ 0,                             0,
+    /* 0x3a */ GRUB_KEYBOARD_KEY_M,           GRUB_KEYBOARD_KEY_J,
+    /* 0x3c */ GRUB_KEYBOARD_KEY_U,           GRUB_KEYBOARD_KEY_7,
+    /* 0x3e */ GRUB_KEYBOARD_KEY_8,           0,
+    /* 0x40 */ 0,                             GRUB_KEYBOARD_KEY_COMMA,
+    /* 0x42 */ GRUB_KEYBOARD_KEY_K,           GRUB_KEYBOARD_KEY_I,
+    /* 0x44 */ GRUB_KEYBOARD_KEY_O,           GRUB_KEYBOARD_KEY_0,
+    /* 0x46 */ GRUB_KEYBOARD_KEY_9,           0,
+    /* 0x48 */ 0,                             GRUB_KEYBOARD_KEY_DOT,
+    /* 0x4a */ GRUB_KEYBOARD_KEY_SLASH,       GRUB_KEYBOARD_KEY_L,
+    /* 0x4c */ GRUB_KEYBOARD_KEY_SEMICOLON,   GRUB_KEYBOARD_KEY_P,
+    /* 0x4e */ GRUB_KEYBOARD_KEY_DASH,        0,
+    /* 0x50 */ 0,                             GRUB_KEYBOARD_KEY_JP_RO,
+    /* 0x52 */ GRUB_KEYBOARD_KEY_DQUOTE,      0,
+    /* 0x54 */ GRUB_KEYBOARD_KEY_LBRACKET,    GRUB_KEYBOARD_KEY_EQUAL,
+    /* 0x56 */ 0,                             0,
+    /* 0x58 */ GRUB_KEYBOARD_KEY_CAPS_LOCK,   GRUB_KEYBOARD_KEY_RIGHT_SHIFT,
+    /* 0x5a */ GRUB_KEYBOARD_KEY_ENTER,       GRUB_KEYBOARD_KEY_RBRACKET,
+    /* 0x5c */ 0,                             GRUB_KEYBOARD_KEY_BACKSLASH,
+    /* 0x5e */ 0,                             0,
+    /* 0x60 */ 0,                             GRUB_KEYBOARD_KEY_102ND,
+    /* 0x62 */ 0,                             0,
+    /* 0x64 */ 0,                             0,
+    /* 0x66 */ GRUB_KEYBOARD_KEY_BACKSPACE,   0,
+    /* 0x68 */ 0,                             GRUB_KEYBOARD_KEY_NUM1,
+    /* 0x6a */ GRUB_KEYBOARD_KEY_JP_YEN,      GRUB_KEYBOARD_KEY_NUM4,
+    /* 0x6c */ GRUB_KEYBOARD_KEY_NUM7,        GRUB_KEYBOARD_KEY_KPCOMMA,
+    /* 0x6e */ 0,                             0,
+    /* 0x70 */ GRUB_KEYBOARD_KEY_NUMDOT,      GRUB_KEYBOARD_KEY_NUM0,
+    /* 0x72 */ GRUB_KEYBOARD_KEY_NUM2,        GRUB_KEYBOARD_KEY_NUM5,
+    /* 0x74 */ GRUB_KEYBOARD_KEY_NUM6,        GRUB_KEYBOARD_KEY_NUM8,
+    /* 0x76 */ GRUB_KEYBOARD_KEY_ESCAPE,      GRUB_KEYBOARD_KEY_NUM_LOCK,
+    /* 0x78 */ GRUB_KEYBOARD_KEY_F11,         GRUB_KEYBOARD_KEY_NUMPLUS,
+    /* 0x7a */ GRUB_KEYBOARD_KEY_NUM3,        GRUB_KEYBOARD_KEY_NUMMINUS,
+    /* 0x7c */ GRUB_KEYBOARD_KEY_NUMMUL,      GRUB_KEYBOARD_KEY_NUM9,
+    /* 0x7e */ GRUB_KEYBOARD_KEY_SCROLL_LOCK, 0,
+    /* 0x80 */ 0,                             0, 
+    /* 0x82 */ 0,                             GRUB_KEYBOARD_KEY_F7,
+  };
+
+static const struct
+{
+  grub_uint8_t from, to;
+} set2_e0_mapping[] = 
+  {
+    {0x11, GRUB_KEYBOARD_KEY_RIGHT_ALT},
+    {0x14, GRUB_KEYBOARD_KEY_RIGHT_CTRL},
+    {0x4a, GRUB_KEYBOARD_KEY_NUMSLASH},
+    {0x5a, GRUB_KEYBOARD_KEY_NUMENTER},
+    {0x69, GRUB_KEYBOARD_KEY_END},
+    {0x6b, GRUB_KEYBOARD_KEY_LEFT},
+    {0x6c, GRUB_KEYBOARD_KEY_HOME},
+    {0x70, GRUB_KEYBOARD_KEY_INSERT},
+    {0x71, GRUB_KEYBOARD_KEY_DELETE},
+    {0x72, GRUB_KEYBOARD_KEY_DOWN},
+    {0x74, GRUB_KEYBOARD_KEY_RIGHT},
+    {0x75, GRUB_KEYBOARD_KEY_UP},
+    {0x7a, GRUB_KEYBOARD_KEY_NPAGE},
+    {0x7d, GRUB_KEYBOARD_KEY_PPAGE},
+  };
+
+static int
+fetch_key (struct grub_ps2_state *ps2_state, grub_uint8_t at_key, int *is_break)
+{
+  int was_ext = 0;
+  int ret = 0;
+
+  /* May happen if no keyboard is connected. Just ignore this.  */
+  if (at_key == 0xff)
+    return -1;
+  if (at_key == 0xe0)
+    {
+      ps2_state->e0_received = 1;
+      return -1;
+    }
+
+  if ((ps2_state->current_set == 2 || ps2_state->current_set == 3) && at_key == 0xf0)
+    {
+      ps2_state->f0_received = 1;
+      return -1;
+    }
+
+  /* Setting LEDs may generate ACKs.  */
+  if (at_key == GRUB_AT_ACK)
+    return -1;
+
+  was_ext = ps2_state->e0_received;
+  ps2_state->e0_received = 0;
+
+  switch (ps2_state->current_set)
+    {
+    case 1:
+      *is_break = !!(at_key & 0x80);
+      if (!was_ext)
+	ret = set1_mapping[at_key & 0x7f];
+      else
+	{
+	  unsigned i;
+	  for (i = 0; i < ARRAY_SIZE (set1_e0_mapping); i++)
+	    if (set1_e0_mapping[i].from == (at_key & 0x7f))
+	      {
+		ret = set1_e0_mapping[i].to;
+		break;
+	      }
+	}
+      break;
+    case 2:
+      *is_break = ps2_state->f0_received;
+      ps2_state->f0_received = 0;
+      if (!was_ext)
+	ret = set2_mapping[at_key];
+      else
+	{
+	  unsigned i;
+	  for (i = 0; i < ARRAY_SIZE (set2_e0_mapping); i++)
+	    if (set2_e0_mapping[i].from == at_key)
+	      {
+		ret = set2_e0_mapping[i].to;
+		break;
+	      }
+	}	
+      break;
+    default:
+      return -1;
+    }
+  if (!ret)
+    {
+      if (was_ext)
+	grub_dprintf ("atkeyb", "Unknown key 0xe0+0x%02x from set %d\n",
+		      at_key, ps2_state->current_set);
+      else
+	grub_dprintf ("atkeyb", "Unknown key 0x%02x from set %d\n",
+		      at_key, ps2_state->current_set);
+      return -1;
+    }
+  return ret;
+}
+
+/* FIXME: This should become an interrupt service routine.  For now
+   it's just used to catch events from control keys.  */
+static int
+grub_keyboard_isr (struct grub_ps2_state *ps2_state,
+		   grub_keyboard_key_t key, int is_break)
+{
+  if (!is_break)
+    switch (key)
+      {
+      case GRUB_KEYBOARD_KEY_LEFT_SHIFT:
+	ps2_state->at_keyboard_status |= GRUB_TERM_STATUS_LSHIFT;
+	return 1;
+      case GRUB_KEYBOARD_KEY_RIGHT_SHIFT:
+	ps2_state->at_keyboard_status |= GRUB_TERM_STATUS_RSHIFT;
+	return 1;
+      case GRUB_KEYBOARD_KEY_LEFT_CTRL:
+	ps2_state->at_keyboard_status |= GRUB_TERM_STATUS_LCTRL;
+	return 1;
+      case GRUB_KEYBOARD_KEY_RIGHT_CTRL:
+	ps2_state->at_keyboard_status |= GRUB_TERM_STATUS_RCTRL;
+	return 1;
+      case GRUB_KEYBOARD_KEY_RIGHT_ALT:
+	ps2_state->at_keyboard_status |= GRUB_TERM_STATUS_RALT;
+	return 1;
+      case GRUB_KEYBOARD_KEY_LEFT_ALT:
+	ps2_state->at_keyboard_status |= GRUB_TERM_STATUS_LALT;
+	return 1;
+      default:
+	return 0;
+      }
+  else
+    switch (key)
+      {
+      case GRUB_KEYBOARD_KEY_LEFT_SHIFT:
+	ps2_state->at_keyboard_status &= ~GRUB_TERM_STATUS_LSHIFT;
+	return 1;
+      case GRUB_KEYBOARD_KEY_RIGHT_SHIFT:
+	ps2_state->at_keyboard_status &= ~GRUB_TERM_STATUS_RSHIFT;
+	return 1;
+      case GRUB_KEYBOARD_KEY_LEFT_CTRL:
+	ps2_state->at_keyboard_status &= ~GRUB_TERM_STATUS_LCTRL;
+	return 1;
+      case GRUB_KEYBOARD_KEY_RIGHT_CTRL:
+	ps2_state->at_keyboard_status &= ~GRUB_TERM_STATUS_RCTRL;
+	return 1;
+      case GRUB_KEYBOARD_KEY_RIGHT_ALT:
+	ps2_state->at_keyboard_status &= ~GRUB_TERM_STATUS_RALT;
+	return 1;
+      case GRUB_KEYBOARD_KEY_LEFT_ALT:
+	ps2_state->at_keyboard_status &= ~GRUB_TERM_STATUS_LALT;
+	return 1;
+      default:
+	return 0;
+      }
+}
+
+/* If there is a key pending, return it; otherwise return GRUB_TERM_NO_KEY.  */
+int
+grub_ps2_process_incoming_byte (struct grub_ps2_state *ps2_state,
+				grub_uint8_t at_key)
+{
+  int code;
+  int is_break = 0;
+
+  code = fetch_key (ps2_state, at_key, &is_break);
+  if (code == -1)
+    return GRUB_TERM_NO_KEY;
+
+  if (grub_keyboard_isr (ps2_state, code, is_break))
+    return GRUB_TERM_NO_KEY;
+  if (is_break)
+    return GRUB_TERM_NO_KEY;
+#ifdef DEBUG_AT_KEYBOARD
+  grub_dprintf ("atkeyb", "Detected key 0x%x\n", code);
+#endif
+  switch (code)
+    {
+      case GRUB_KEYBOARD_KEY_CAPS_LOCK:
+	ps2_state->at_keyboard_status ^= GRUB_TERM_STATUS_CAPS;
+	ps2_state->led_status ^= KEYBOARD_LED_CAPS;
+
+#ifdef DEBUG_AT_KEYBOARD
+	grub_dprintf ("atkeyb", "caps_lock = %d\n", !!(ps2_state->at_keyboard_status & GRUB_KEYBOARD_STATUS_CAPS_LOCK));
+#endif
+	return GRUB_TERM_NO_KEY;
+      case GRUB_KEYBOARD_KEY_NUM_LOCK:
+	ps2_state->at_keyboard_status ^= GRUB_TERM_STATUS_NUM;
+	ps2_state->led_status ^= KEYBOARD_LED_NUM;
+
+#ifdef DEBUG_AT_KEYBOARD
+	grub_dprintf ("atkeyb", "num_lock = %d\n", !!(ps2_state->at_keyboard_status & GRUB_KEYBOARD_STATUS_NUM_LOCK));
+#endif
+	return GRUB_TERM_NO_KEY;
+      case GRUB_KEYBOARD_KEY_SCROLL_LOCK:
+	ps2_state->at_keyboard_status ^= GRUB_TERM_STATUS_SCROLL;
+	ps2_state->led_status ^= KEYBOARD_LED_SCROLL;
+	return GRUB_TERM_NO_KEY;
+      default:
+	return grub_term_map_key (code, ps2_state->at_keyboard_status);
+    }
+}

grub-core/term/usb_keyboard.c

@@ -19,7 +19,6 @@
 
 #include <grub/term.h>
 #include <grub/time.h>
-#include <grub/cpu/io.h>
 #include <grub/misc.h>
 #include <grub/term.h>
 #include <grub/usb.h>

grub-core/video/coreboot/cbfb.c

@@ -25,7 +25,7 @@
 #include <grub/mm.h>
 #include <grub/video.h>
 #include <grub/video_fb.h>
-#include <grub/machine/lbio.h>
+#include <grub/coreboot/lbio.h>
 #include <grub/machine/console.h>
 
 struct grub_linuxbios_table_framebuffer *grub_video_coreboot_fbtable;

include/grub/arm/coreboot/console.h

@@ -0,0 +1,29 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_MACHINE_CONSOLE_HEADER
+#define GRUB_MACHINE_CONSOLE_HEADER	1
+
+void grub_video_coreboot_fb_init (void);
+void grub_video_coreboot_fb_early_init (void);
+void grub_video_coreboot_fb_late_init (void);
+void grub_video_coreboot_fb_fini (void);
+
+extern struct grub_linuxbios_table_framebuffer *grub_video_coreboot_fbtable;
+
+#endif /* ! GRUB_MACHINE_CONSOLE_HEADER */

include/grub/arm/coreboot/kernel.h

@@ -0,0 +1,44 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_KERNEL_MACHINE_HEADER
+#define GRUB_KERNEL_MACHINE_HEADER	1
+
+#ifndef ASM_FILE
+
+#include <grub/symbol.h>
+#include <grub/types.h>
+
+struct grub_fdt_board
+{
+  const char *vendor, *part;
+  const grub_uint8_t *dtb;
+  grub_size_t dtb_size;
+};
+
+extern struct grub_fdt_board grub_fdt_boards[];
+void grub_machine_timer_init (void);
+void grub_pl050_init (void);
+void
+grub_cros_init (void);
+extern grub_addr_t EXPORT_VAR (start_of_ram);
+#endif /* ! ASM_FILE */
+
+#define GRUB_KERNEL_MACHINE_STACK_SIZE GRUB_KERNEL_ARM_STACK_SIZE
+
+#endif /* ! GRUB_KERNEL_MACHINE_HEADER */

include/grub/arm/cros_ec.h

@@ -0,0 +1,16 @@
+#ifndef GRUB_ARM_CROS_EC_H
+#define GRUB_ARM_CROS_EC_H 1
+
+#include <grub/types.h>
+
+#define GRUB_CROS_EC_KEYSCAN_COLS 13
+#define GRUB_CROS_EC_KEYSCAN_ROWS 8
+
+struct grub_cros_ec_keyscan {
+	grub_uint8_t data[GRUB_CROS_EC_KEYSCAN_COLS];
+};
+
+int
+grub_cros_ec_scan_keyboard(struct grub_cros_ec_keyscan *scan);
+
+#endif

include/grub/arm/linux.h

@@ -25,7 +25,7 @@
 
 #include "system.h"
 
-#if defined GRUB_MACHINE_UBOOT
+#if defined (GRUB_MACHINE_UBOOT)
 # include <grub/uboot/uboot.h>
 # define LINUX_ADDRESS        (start_of_ram + 0x8000)
 # define LINUX_INITRD_ADDRESS (start_of_ram + 0x02000000)
@@ -40,7 +40,7 @@
 # define LINUX_PHYS_OFFSET        (0x00008000)
 # define LINUX_INITRD_PHYS_OFFSET (LINUX_PHYS_OFFSET + 0x02000000)
 # define LINUX_FDT_PHYS_OFFSET    (LINUX_INITRD_PHYS_OFFSET - 0x10000)
-static inline grub_addr_t
+static inline const void *
 grub_arm_firmware_get_boot_data (void)
 {
   return 0;
@@ -50,6 +50,22 @@ grub_arm_firmware_get_machine_type (void)
 {
   return GRUB_ARM_MACHINE_TYPE_FDT;
 }
+#elif defined (GRUB_MACHINE_COREBOOT)
+#include <grub/fdtbus.h>
+#include <grub/machine/kernel.h>
+# define LINUX_ADDRESS        (start_of_ram + 0x8000)
+# define LINUX_INITRD_ADDRESS (start_of_ram + 0x02000000)
+# define LINUX_FDT_ADDRESS    (LINUX_INITRD_ADDRESS - 0x10000)
+static inline const void *
+grub_arm_firmware_get_boot_data (void)
+{
+  return grub_fdtbus_get_fdt ();
+}
+static inline grub_uint32_t
+grub_arm_firmware_get_machine_type (void)
+{
+  return GRUB_ARM_MACHINE_TYPE_FDT;
+}
 #endif
 
 #define FDT_ADDITIONAL_ENTRIES_SIZE	0x300

include/grub/arm/startup.h

@@ -0,0 +1,16 @@
+#ifndef GRUB_STARTUP_CPU_HEADER
+#define GRUB_STARTUP_CPU_HEADER
+
+struct grub_arm_startup_registers
+{
+  /* registers 0-11 */
+  /* for U-boot r[1] is machine type */
+  /* for U-boot r[2] is boot data */
+  grub_uint32_t r[12];
+  grub_uint32_t sp;
+  grub_uint32_t lr;
+};
+
+extern struct grub_arm_startup_registers grub_arm_saved_registers;
+
+#endif

include/grub/arm/uboot/kernel.h

@@ -26,7 +26,7 @@
 
 #endif /* ! ASM_FILE */
 
-#define GRUB_KERNEL_MACHINE_STACK_SIZE 0x40000
+#define GRUB_KERNEL_MACHINE_STACK_SIZE GRUB_KERNEL_ARM_STACK_SIZE
 #define GRUB_KERNEL_MACHINE_HEAP_SIZE  (grub_size_t) (16 * 1024 * 1024)
 
 #endif /* ! GRUB_KERNEL_MACHINE_HEADER */

include/grub/at_keyboard.h

@@ -27,10 +27,6 @@
 
 #define KEYBOARD_AT_TRANSLATE		0x40
 
-#define GRUB_AT_ACK                     0xfa
-#define GRUB_AT_NACK                    0xfe
-#define GRUB_AT_TRIES                   5
-
 #define KEYBOARD_ISMAKE(x)	!((x) & 0x80)
 #define KEYBOARD_ISREADY(x)	((x) & 0x01)
 #define KEYBOARD_SCANCODE(x)	((x) & 0x7f)

include/grub/cache.h

@@ -34,14 +34,14 @@ void EXPORT_FUNC(grub_arch_sync_caches) (void *address, grub_size_t len);
 #endif
 
 #ifndef GRUB_MACHINE_EMU
-#ifdef _mips
+#if defined (__i386__) || defined (__x86_64__)
-void EXPORT_FUNC(grub_arch_sync_dma_caches) (void *address, grub_size_t len);
-#else
 static inline void
 grub_arch_sync_dma_caches (void *address __attribute__ ((unused)),
 			   grub_size_t len __attribute__ ((unused)))
 {
 }
+#else
+void EXPORT_FUNC(grub_arch_sync_dma_caches) (volatile void *address, grub_size_t len);
 #endif
 #endif
 

include/grub/coreboot/lbio.h

@@ -20,6 +20,9 @@
 #ifndef _GRUB_MACHINE_LBIO_HEADER
 #define _GRUB_MACHINE_LBIO_HEADER      1
 
+#include <grub/types.h>
+#include <grub/err.h>
+
 struct grub_linuxbios_table_header
 {
   grub_uint8_t signature[4];
@@ -68,7 +71,8 @@ enum
     GRUB_LINUXBIOS_MEMBER_LINK        = 0x11,
     GRUB_LINUXBIOS_MEMBER_FRAMEBUFFER = 0x12,
     GRUB_LINUXBIOS_MEMBER_TIMESTAMPS  = 0x16,
-    GRUB_LINUXBIOS_MEMBER_CBMEMC      = 0x17
+    GRUB_LINUXBIOS_MEMBER_CBMEMC      = 0x17,
+    GRUB_LINUXBIOS_MEMBER_DTB         = 0x33,
   };
 
 struct grub_linuxbios_table_framebuffer {

include/grub/dma.h

@@ -0,0 +1,44 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef	GRUB_DMA_H
+#define	GRUB_DMA_H	1
+
+struct grub_pci_dma_chunk;
+
+struct grub_pci_dma_chunk *EXPORT_FUNC(grub_memalign_dma32) (grub_size_t align,
+							     grub_size_t size);
+void EXPORT_FUNC(grub_dma_free) (struct grub_pci_dma_chunk *ch);
+volatile void *EXPORT_FUNC(grub_dma_get_virt) (struct grub_pci_dma_chunk *ch);
+grub_uint32_t EXPORT_FUNC(grub_dma_get_phys) (struct grub_pci_dma_chunk *ch);
+
+static inline void *
+grub_dma_phys2virt (grub_uint32_t phys, struct grub_pci_dma_chunk *chunk)
+{
+  return ((grub_uint8_t *) grub_dma_get_virt (chunk)
+	  + (phys - grub_dma_get_phys (chunk)));
+}
+
+static inline grub_uint32_t
+grub_dma_virt2phys (volatile void *virt, struct grub_pci_dma_chunk *chunk)
+{
+  return (((grub_uint8_t *) virt - (grub_uint8_t *) grub_dma_get_virt (chunk))
+	  + grub_dma_get_phys (chunk));
+}
+
+#endif

include/grub/fdt.h

@@ -20,6 +20,7 @@
 #define GRUB_FDT_HEADER	1
 
 #include <grub/types.h>
+#include <grub/symbol.h>
 
 #define FDT_MAGIC 0xD00DFEED
 
@@ -95,15 +96,21 @@ struct grub_fdt_empty_tree {
 #define grub_fdt_set_size_dt_struct(fdt, value)	\
 	grub_fdt_set_header(fdt, size_dt_struct, value)
 
-int grub_fdt_create_empty_tree (void *fdt, unsigned int size);
+int EXPORT_FUNC(grub_fdt_create_empty_tree) (void *fdt, unsigned int size);
-int grub_fdt_check_header (void *fdt, unsigned int size);
+int EXPORT_FUNC(grub_fdt_check_header) (const void *fdt, unsigned int size);
-int grub_fdt_check_header_nosize (void *fdt);
+int EXPORT_FUNC(grub_fdt_check_header_nosize) (const void *fdt);
-int grub_fdt_find_subnode (const void *fdt, unsigned int parentoffset,
+int EXPORT_FUNC(grub_fdt_find_subnode) (const void *fdt, unsigned int parentoffset,
 					const char *name);
-int grub_fdt_add_subnode (void *fdt, unsigned int parentoffset,
+int EXPORT_FUNC(grub_fdt_first_node) (const void *fdt, unsigned int parentoffset);
+int EXPORT_FUNC(grub_fdt_next_node) (const void *fdt, unsigned int currentoffset);
+int EXPORT_FUNC(grub_fdt_add_subnode) (void *fdt, unsigned int parentoffset,
 			  const char *name);
+const char *
+EXPORT_FUNC(grub_fdt_get_nodename) (const void *fdt, unsigned int nodeoffset);
+const void *EXPORT_FUNC(grub_fdt_get_prop) (const void *fdt, unsigned int nodeoffset, const char *name,
+					    grub_uint32_t *len);
 
-int grub_fdt_set_prop (void *fdt, unsigned int nodeoffset, const char *name,
+int EXPORT_FUNC(grub_fdt_set_prop) (void *fdt, unsigned int nodeoffset, const char *name,
 				    const void *val, grub_uint32_t len);
 #define grub_fdt_set_prop32(fdt, nodeoffset, name, val)	\
 ({ \

include/grub/fdtbus.h

@@ -0,0 +1,73 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2016  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_FDTBUS_HEADER
+#define GRUB_FDTBUS_HEADER	1
+
+#include <grub/fdt.h>
+#include <grub/err.h>
+
+struct grub_fdtbus_dev;
+
+struct grub_fdtbus_driver
+{
+  struct grub_fdtbus_driver *next;
+  struct grub_fdtbus_driver **prev;
+
+  const char *compatible;
+
+  grub_err_t (*attach) (const struct grub_fdtbus_dev *dev);
+  void (*detach) (const struct grub_fdtbus_dev *dev);
+};
+
+extern char EXPORT_VAR(grub_fdtbus_invalid_mapping)[1];
+
+static inline int
+grub_fdtbus_is_mapping_valid (volatile void *m)
+{
+  return m != grub_fdtbus_invalid_mapping;
+}
+
+volatile void *
+EXPORT_FUNC(grub_fdtbus_map_reg) (const struct grub_fdtbus_dev *dev, int reg, grub_size_t *size);
+
+const void *
+EXPORT_FUNC(grub_fdtbus_get_fdt) (void);
+
+const char *
+EXPORT_FUNC(grub_fdtbus_get_name) (const struct grub_fdtbus_dev *dev);
+
+const void *
+EXPORT_FUNC(grub_fdtbus_get_prop) (const struct grub_fdtbus_dev *dev,
+		      const char *name,
+		      grub_uint32_t *len);
+
+void
+EXPORT_FUNC(grub_fdtbus_register) (struct grub_fdtbus_driver *driver);
+
+void
+EXPORT_FUNC(grub_fdtbus_unregister) (struct grub_fdtbus_driver *driver);
+
+/* Must be called before any register(). */
+/* dtb is assumed to be unfreeable and must remain
+   valid for lifetime of GRUB.
+ */
+void
+grub_fdtbus_init (const void *dtb, grub_size_t size);
+
+#endif

include/grub/kernel.h

@@ -28,7 +28,8 @@ enum
   OBJ_TYPE_MEMDISK,
   OBJ_TYPE_CONFIG,
   OBJ_TYPE_PREFIX,
-  OBJ_TYPE_PUBKEY
+  OBJ_TYPE_PUBKEY,
+  OBJ_TYPE_DTB
 };
 
 /* The module header.  */

include/grub/offsets.h

@@ -120,7 +120,11 @@
 
 #define GRUB_KERNEL_ARM_UBOOT_MOD_ALIGN 	0x8
 #define GRUB_KERNEL_ARM_UBOOT_TOTAL_MODULE_SIZE	0x4
-#define GRUB_KERNEL_ARM_UBOOT_LINK_ADDR		0x08000000
+#define GRUB_KERNEL_ARM_COREBOOT_MOD_ALIGN 	0x8
+#define GRUB_KERNEL_ARM_COREBOOT_TOTAL_MODULE_SIZE	0x4
+
+#define GRUB_KERNEL_ARM_STACK_SIZE 0x40000
+#define GRUB_KERNEL_ARM_COREBOOT_MOD_GAP (GRUB_KERNEL_ARM_STACK_SIZE + 1024)
 
 /* Minimal gap between _end and the start of the modules.  It's a hack
    for PowerMac to prevent "CLAIM failed" error.  The real fix is to

include/grub/pci.h

@@ -142,27 +142,7 @@ grub_pci_address_t EXPORT_FUNC(grub_pci_make_address) (grub_pci_device_t dev,
 void EXPORT_FUNC(grub_pci_iterate) (grub_pci_iteratefunc_t hook,
 				    void *hook_data);
 
-struct grub_pci_dma_chunk;
+#include <grub/dma.h>
-
-struct grub_pci_dma_chunk *EXPORT_FUNC(grub_memalign_dma32) (grub_size_t align,
-							     grub_size_t size);
-void EXPORT_FUNC(grub_dma_free) (struct grub_pci_dma_chunk *ch);
-volatile void *EXPORT_FUNC(grub_dma_get_virt) (struct grub_pci_dma_chunk *ch);
-grub_uint32_t EXPORT_FUNC(grub_dma_get_phys) (struct grub_pci_dma_chunk *ch);
-
-static inline void *
-grub_dma_phys2virt (grub_uint32_t phys, struct grub_pci_dma_chunk *chunk)
-{
-  return ((grub_uint8_t *) grub_dma_get_virt (chunk)
-	  + (phys - grub_dma_get_phys (chunk)));
-}
-
-static inline grub_uint32_t
-grub_dma_virt2phys (volatile void *virt, struct grub_pci_dma_chunk *chunk)
-{
-  return (((grub_uint8_t *) virt - (grub_uint8_t *) grub_dma_get_virt (chunk))
-	  + grub_dma_get_phys (chunk));
-}
 
 grub_uint8_t
 EXPORT_FUNC (grub_pci_find_capability) (grub_pci_device_t dev, grub_uint8_t cap);

include/grub/ps2.h

@@ -0,0 +1,43 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_PS2_HEADER
+#define GRUB_PS2_HEADER	1
+
+#include <grub/types.h>
+
+#define GRUB_AT_ACK                     0xfa
+#define GRUB_AT_NACK                    0xfe
+#define GRUB_AT_TRIES                   5
+
+/* Make sure it's zeroed-out and set current_set at init.  */
+struct grub_ps2_state
+{
+  int e0_received;
+  int f0_received;
+  grub_uint8_t led_status;
+  short at_keyboard_status;
+  grub_uint8_t current_set;
+};
+
+/* If there is a key pending, return it; otherwise return GRUB_TERM_NO_KEY.  */
+int
+grub_ps2_process_incoming_byte (struct grub_ps2_state *ps2_state,
+				grub_uint8_t data);
+
+#endif

include/grub/uboot/uboot.h

@@ -37,7 +37,7 @@ grub_err_t grub_uboot_probe_hardware (void);
 extern grub_addr_t EXPORT_VAR (start_of_ram);
 
 grub_uint32_t EXPORT_FUNC (grub_uboot_get_machine_type) (void);
-grub_addr_t EXPORT_FUNC (grub_uboot_get_boot_data) (void);
+const void *EXPORT_FUNC (grub_uboot_get_boot_data) (void);
 
 
 /*

include/grub/usb.h

@@ -116,8 +116,7 @@ struct grub_usb_controller_dev
 
   int (*hubports) (grub_usb_controller_t dev);
 
-  grub_usb_err_t (*portstatus) (grub_usb_controller_t dev, unsigned int port,
+  grub_usb_err_t (*reset_port) (grub_usb_controller_t dev, unsigned int port);
-				unsigned int enable);
 
   grub_usb_speed_t (*detect_dev) (grub_usb_controller_t dev, int port, int *changed);
 
@@ -321,5 +320,13 @@ grub_usb_err_t
 grub_usb_check_transfer (grub_usb_transfer_t trans, grub_size_t *actual);
 void
 grub_usb_cancel_transfer (grub_usb_transfer_t trans);
+void
+grub_ehci_init_device (volatile void *regs);
+void
+grub_ehci_pci_scan (void);
+void
+grub_dwc2_init_device (volatile void *regs);
+void
+grub_dwc2_pci_scan (void);
 
 #endif /* GRUB_USB_H */

include/grub/util/install.h

@@ -176,7 +176,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
 			     char *config_path,
 			     const struct grub_install_image_target_desc *image_target,
 			     int note,
-			     grub_compression_t comp);
+			     grub_compression_t comp, const char *dtb_file);
 
 const struct grub_install_image_target_desc *
 grub_install_get_image_target (const char *arg);

include/grub/util/mkimage.h

@@ -0,0 +1,185 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_UTIL_MKIMAGE_HEADER
+#define GRUB_UTIL_MKIMAGE_HEADER	1
+
+struct grub_mkimage_layout
+{
+  size_t exec_size;
+  size_t kernel_size;
+  size_t bss_size;
+  grub_uint64_t start_address;
+  void *reloc_section;
+  size_t reloc_size;
+  size_t align;
+  grub_size_t ia64jmp_off;
+  grub_size_t tramp_off;
+  grub_size_t ia64_got_off;
+  grub_size_t got_size;
+  unsigned ia64jmpnum;
+  grub_uint32_t bss_start;
+  grub_uint32_t end;
+};
+
+/* Private header. Use only in mkimage-related sources.  */
+char *
+grub_mkimage_load_image32 (const char *kernel_path,
+			   size_t total_module_size,
+			   struct grub_mkimage_layout *layout,
+			   const struct grub_install_image_target_desc *image_target);
+char *
+grub_mkimage_load_image64 (const char *kernel_path,
+			   size_t total_module_size,
+			   struct grub_mkimage_layout *layout,
+			   const struct grub_install_image_target_desc *image_target);
+void
+grub_mkimage_generate_elf32 (const struct grub_install_image_target_desc *image_target,
+			     int note, char **core_img, size_t *core_size,
+			     Elf32_Addr target_addr,
+			     struct grub_mkimage_layout *layout);
+void
+grub_mkimage_generate_elf64 (const struct grub_install_image_target_desc *image_target,
+			     int note, char **core_img, size_t *core_size,
+			     Elf64_Addr target_addr,
+			     struct grub_mkimage_layout *layout);
+
+struct grub_install_image_target_desc
+{
+  const char *dirname;
+  const char *names[6];
+  grub_size_t voidp_sizeof;
+  int bigendian;
+  enum {
+    IMAGE_I386_PC, IMAGE_EFI, IMAGE_COREBOOT,
+    IMAGE_SPARC64_AOUT, IMAGE_SPARC64_RAW, IMAGE_SPARC64_CDCORE,
+    IMAGE_I386_IEEE1275,
+    IMAGE_LOONGSON_ELF, IMAGE_QEMU, IMAGE_PPC, IMAGE_YEELOONG_FLASH,
+    IMAGE_FULOONG2F_FLASH, IMAGE_I386_PC_PXE, IMAGE_MIPS_ARC,
+    IMAGE_QEMU_MIPS_FLASH, IMAGE_UBOOT, IMAGE_XEN, IMAGE_I386_PC_ELTORITO
+  } id;
+  enum
+    {
+      PLATFORM_FLAGS_NONE = 0,
+      PLATFORM_FLAGS_DECOMPRESSORS = 2,
+      PLATFORM_FLAGS_MODULES_BEFORE_KERNEL = 4,
+    } flags;
+  unsigned total_module_size;
+  unsigned decompressor_compressed_size;
+  unsigned decompressor_uncompressed_size;
+  unsigned decompressor_uncompressed_addr;
+  unsigned reloc_table_offset;
+  unsigned link_align;
+  grub_uint16_t elf_target;
+  unsigned section_align;
+  signed vaddr_offset;
+  grub_uint64_t link_addr;
+  unsigned mod_gap, mod_align;
+  grub_compression_t default_compression;
+  grub_uint16_t pe_target;
+};
+
+#define grub_target_to_host32(x) (grub_target_to_host32_real (image_target, (x)))
+#define grub_host_to_target32(x) (grub_host_to_target32_real (image_target, (x)))
+#define grub_target_to_host64(x) (grub_target_to_host64_real (image_target, (x)))
+#define grub_host_to_target64(x) (grub_host_to_target64_real (image_target, (x)))
+#define grub_host_to_target_addr(x) (grub_host_to_target_addr_real (image_target, (x)))
+#define grub_target_to_host16(x) (grub_target_to_host16_real (image_target, (x)))
+#define grub_host_to_target16(x) (grub_host_to_target16_real (image_target, (x)))
+
+static inline grub_uint32_t
+grub_target_to_host32_real (const struct grub_install_image_target_desc *image_target,
+			    grub_uint32_t in)
+{
+  if (image_target->bigendian)
+    return grub_be_to_cpu32 (in);
+  else
+    return grub_le_to_cpu32 (in);
+}
+
+static inline grub_uint64_t
+grub_target_to_host64_real (const struct grub_install_image_target_desc *image_target,
+			    grub_uint64_t in)
+{
+  if (image_target->bigendian)
+    return grub_be_to_cpu64 (in);
+  else
+    return grub_le_to_cpu64 (in);
+}
+
+static inline grub_uint64_t
+grub_host_to_target64_real (const struct grub_install_image_target_desc *image_target,
+			    grub_uint64_t in)
+{
+  if (image_target->bigendian)
+    return grub_cpu_to_be64 (in);
+  else
+    return grub_cpu_to_le64 (in);
+}
+
+static inline grub_uint32_t
+grub_host_to_target32_real (const struct grub_install_image_target_desc *image_target,
+			    grub_uint32_t in)
+{
+  if (image_target->bigendian)
+    return grub_cpu_to_be32 (in);
+  else
+    return grub_cpu_to_le32 (in);
+}
+
+static inline grub_uint16_t
+grub_target_to_host16_real (const struct grub_install_image_target_desc *image_target,
+			    grub_uint16_t in)
+{
+  if (image_target->bigendian)
+    return grub_be_to_cpu16 (in);
+  else
+    return grub_le_to_cpu16 (in);
+}
+
+static inline grub_uint16_t
+grub_host_to_target16_real (const struct grub_install_image_target_desc *image_target,
+			    grub_uint16_t in)
+{
+  if (image_target->bigendian)
+    return grub_cpu_to_be16 (in);
+  else
+    return grub_cpu_to_le16 (in);
+}
+
+static inline grub_uint64_t
+grub_host_to_target_addr_real (const struct grub_install_image_target_desc *image_target, grub_uint64_t in)
+{
+  if (image_target->voidp_sizeof == 8)
+    return grub_host_to_target64_real (image_target, in);
+  else
+    return grub_host_to_target32_real (image_target, in);
+}
+
+static inline grub_uint64_t
+grub_target_to_host_real (const struct grub_install_image_target_desc *image_target, grub_uint64_t in)
+{
+  if (image_target->voidp_sizeof == 8)
+    return grub_target_to_host64_real (image_target, in);
+  else
+    return grub_target_to_host32_real (image_target, in);
+}
+
+#define grub_target_to_host(val) grub_target_to_host_real(image_target, (val))
+
+#endif

util/grub-install-common.c

@@ -499,7 +499,7 @@ grub_install_make_image_wrap_file (const char *dir, const char *prefix,
   grub_install_generate_image (dir, prefix, fp, outname,
 			       modules.entries, memdisk_path,
 			       pubkeys, npubkeys, config_path, tgt,
-			       note, compression);
+			       note, compression, 0);
   while (dc--)
     grub_install_pop_module ();
 }

util/grub-mkimage.c

@@ -71,6 +71,7 @@ static struct argp_option options[] = {
    N_("embed FILE as a memdisk image\n"
       "Implies `-p (memdisk)/boot/grub' and overrides any prefix supplied previously,"
       " but the prefix itself can be overridden by later options"), 0},
+  {"dtb",  'D', N_("FILE"), 0, N_("embed FILE as a device tree (DTB)\n"), 0},
    /* TRANSLATORS: "embed" is a verb (command description).  "*/
   {"config",   'c', N_("FILE"), 0, N_("embed FILE as an early config"), 0},
    /* TRANSLATORS: "embed" is a verb (command description).  "*/
@@ -117,6 +118,7 @@ struct arguments
   char *dir;
   char *prefix;
   char *memdisk;
+  char *dtb;
   char **pubkeys;
   size_t npubkeys;
   char *font;
@@ -176,6 +178,13 @@ argp_parser (int key, char *arg, struct argp_state *state)
       arguments->prefix = xstrdup ("(memdisk)/boot/grub");
       break;
 
+    case 'D':
+      if (arguments->dtb)
+	free (arguments->dtb);
+
+      arguments->dtb = xstrdup (arg);
+      break;
+
     case 'k':
       arguments->pubkeys = xrealloc (arguments->pubkeys,
 				     sizeof (arguments->pubkeys[0])
@@ -299,7 +308,7 @@ main (int argc, char *argv[])
 			       arguments.memdisk, arguments.pubkeys,
 			       arguments.npubkeys, arguments.config,
 			       arguments.image_target, arguments.note,
-			       arguments.comp);
+			       arguments.comp, arguments.dtb);
 
   grub_util_file_sync  (fp);
   fclose (fp);

util/grub-mkimage32.c

@@ -0,0 +1,22 @@
+#define MKIMAGE_ELF32 1
+
+# define SUFFIX(x)	x ## 32
+# define ELFCLASSXX	ELFCLASS32
+# define Elf_Ehdr	Elf32_Ehdr
+# define Elf_Phdr	Elf32_Phdr
+# define Elf_Nhdr	Elf32_Nhdr
+# define Elf_Addr	Elf32_Addr
+# define Elf_Sym	Elf32_Sym
+# define Elf_Off	Elf32_Off
+# define Elf_Shdr	Elf32_Shdr
+# define Elf_Rela       Elf32_Rela
+# define Elf_Rel        Elf32_Rel
+# define Elf_Word       Elf32_Word
+# define Elf_Half       Elf32_Half
+# define Elf_Section    Elf32_Section
+# define ELF_R_SYM(val)		ELF32_R_SYM(val)
+# define ELF_R_TYPE(val)		ELF32_R_TYPE(val)
+# define ELF_ST_TYPE(val)		ELF32_ST_TYPE(val)
+#define XEN_NOTE_SIZE 132
+
+#include "grub-mkimagexx.c"

util/grub-mkimage64.c

@@ -0,0 +1,22 @@
+#define MKIMAGE_ELF64 1
+
+# define SUFFIX(x)	x ## 64
+# define ELFCLASSXX	ELFCLASS64
+# define Elf_Ehdr	Elf64_Ehdr
+# define Elf_Phdr	Elf64_Phdr
+# define Elf_Nhdr	Elf64_Nhdr
+# define Elf_Addr	Elf64_Addr
+# define Elf_Sym	Elf64_Sym
+# define Elf_Off	Elf64_Off
+# define Elf_Shdr	Elf64_Shdr
+# define Elf_Rela       Elf64_Rela
+# define Elf_Rel        Elf64_Rel
+# define Elf_Word       Elf64_Word
+# define Elf_Half       Elf64_Half
+# define Elf_Section    Elf64_Section
+# define ELF_R_SYM(val)		ELF64_R_SYM(val)
+# define ELF_R_TYPE(val)		ELF64_R_TYPE(val)
+# define ELF_ST_TYPE(val)		ELF64_ST_TYPE(val)
+#define XEN_NOTE_SIZE 120
+
+#include "grub-mkimagexx.c"

util/mkimage.c

@@ -46,6 +46,7 @@
 #include <grub/ia64/reloc.h>
 #include <grub/osdep/hostfile.h>
 #include <grub/util/install.h>
+#include <grub/util/mkimage.h>
 
 #define ALIGN_ADDR(x) (ALIGN_UP((x), image_target->voidp_sizeof))
 
@@ -55,43 +56,11 @@
 
 #define TARGET_NO_FIELD 0xffffffff
 
+#pragma GCC diagnostic ignored "-Wcast-align"
+
 /* use 2015-01-01T00:00:00+0000 as a stock timestamp */
 #define STABLE_EMBEDDING_TIMESTAMP 1420070400
 
-struct grub_install_image_target_desc
-{
-  const char *dirname;
-  const char *names[6];
-  grub_size_t voidp_sizeof;
-  int bigendian;
-  enum {
-    IMAGE_I386_PC, IMAGE_EFI, IMAGE_COREBOOT,
-    IMAGE_SPARC64_AOUT, IMAGE_SPARC64_RAW, IMAGE_SPARC64_CDCORE,
-    IMAGE_I386_IEEE1275,
-    IMAGE_LOONGSON_ELF, IMAGE_QEMU, IMAGE_PPC, IMAGE_YEELOONG_FLASH,
-    IMAGE_FULOONG2F_FLASH, IMAGE_I386_PC_PXE, IMAGE_MIPS_ARC,
-    IMAGE_QEMU_MIPS_FLASH, IMAGE_UBOOT, IMAGE_XEN, IMAGE_I386_PC_ELTORITO
-  } id;
-  enum
-    {
-      PLATFORM_FLAGS_NONE = 0,
-      PLATFORM_FLAGS_DECOMPRESSORS = 2,
-      PLATFORM_FLAGS_MODULES_BEFORE_KERNEL = 4,
-    } flags;
-  unsigned total_module_size;
-  unsigned decompressor_compressed_size;
-  unsigned decompressor_uncompressed_size;
-  unsigned decompressor_uncompressed_addr;
-  unsigned link_align;
-  grub_uint16_t elf_target;
-  unsigned section_align;
-  signed vaddr_offset;
-  grub_uint64_t link_addr;
-  unsigned mod_gap, mod_align;
-  grub_compression_t default_compression;
-  grub_uint16_t pe_target;
-};
-
 #define EFI32_HEADER_SIZE ALIGN_UP (GRUB_PE32_MSDOS_STUB_SIZE		\
 				    + GRUB_PE32_SIGNATURE_SIZE		\
 				    + sizeof (struct grub_pe32_coff_header) \
@@ -119,6 +88,7 @@ static const struct grub_install_image_target_desc image_targets[] =
       .decompressor_compressed_size = TARGET_NO_FIELD,
       .decompressor_uncompressed_size = TARGET_NO_FIELD,
       .decompressor_uncompressed_addr = TARGET_NO_FIELD,
+      .reloc_table_offset = TARGET_NO_FIELD,
       .section_align = 1,
       .vaddr_offset = 0,
       .link_addr = GRUB_KERNEL_I386_COREBOOT_LINK_ADDR,
@@ -558,12 +528,49 @@ static const struct grub_install_image_target_desc image_targets[] =
       .decompressor_uncompressed_addr = TARGET_NO_FIELD,
       .section_align = GRUB_KERNEL_ARM_UBOOT_MOD_ALIGN,
       .vaddr_offset = 0,
-      .link_addr = GRUB_KERNEL_ARM_UBOOT_LINK_ADDR,
       .elf_target = EM_ARM,
       .mod_gap = GRUB_KERNEL_ARM_UBOOT_MOD_GAP,
       .mod_align = GRUB_KERNEL_ARM_UBOOT_MOD_ALIGN,
       .link_align = 4
     },
+    {
+      .dirname = "arm-coreboot",
+      .names = { "arm-coreboot", NULL },
+      .voidp_sizeof = 4,
+      .bigendian = 0,
+      .id = IMAGE_COREBOOT,
+      .flags = PLATFORM_FLAGS_NONE,
+      .total_module_size = GRUB_KERNEL_ARM_COREBOOT_TOTAL_MODULE_SIZE,
+      .decompressor_compressed_size = TARGET_NO_FIELD,
+      .decompressor_uncompressed_size = TARGET_NO_FIELD,
+      .decompressor_uncompressed_addr = TARGET_NO_FIELD,
+      .section_align = GRUB_KERNEL_ARM_COREBOOT_MOD_ALIGN,
+      .vaddr_offset = 0,
+      .elf_target = EM_ARM,
+      .mod_gap = GRUB_KERNEL_ARM_COREBOOT_MOD_GAP,
+      .mod_align = GRUB_KERNEL_ARM_COREBOOT_MOD_ALIGN,
+      .link_align = 4,
+    },
+    /* For coreboot versions that don't support self-relocating images. */
+    {
+      .dirname = "arm-coreboot-veyron",
+      .names = { "arm-coreboot-veyron", NULL },
+      .voidp_sizeof = 4,
+      .bigendian = 0,
+      .id = IMAGE_COREBOOT,
+      .flags = PLATFORM_FLAGS_NONE,
+      .total_module_size = GRUB_KERNEL_ARM_COREBOOT_TOTAL_MODULE_SIZE,
+      .decompressor_compressed_size = TARGET_NO_FIELD,
+      .decompressor_uncompressed_size = TARGET_NO_FIELD,
+      .decompressor_uncompressed_addr = TARGET_NO_FIELD,
+      .section_align = GRUB_KERNEL_ARM_COREBOOT_MOD_ALIGN,
+      .vaddr_offset = 0,
+      .elf_target = EM_ARM,
+      .mod_gap = GRUB_KERNEL_ARM_COREBOOT_MOD_GAP,
+      .mod_align = GRUB_KERNEL_ARM_COREBOOT_MOD_ALIGN,
+      .link_align = 4,
+      .link_addr = 0x43000000,
+    },
     {
       .dirname = "arm-efi",
       .names = { "arm-efi", NULL },
@@ -603,119 +610,6 @@ static const struct grub_install_image_target_desc image_targets[] =
     },
   };
 
-#define grub_target_to_host32(x) (grub_target_to_host32_real (image_target, (x)))
-#define grub_host_to_target32(x) (grub_host_to_target32_real (image_target, (x)))
-#define grub_target_to_host64(x) (grub_target_to_host64_real (image_target, (x)))
-#define grub_host_to_target64(x) (grub_host_to_target64_real (image_target, (x)))
-#define grub_host_to_target_addr(x) (grub_host_to_target_addr_real (image_target, (x)))
-#define grub_target_to_host16(x) (grub_target_to_host16_real (image_target, (x)))
-#define grub_host_to_target16(x) (grub_host_to_target16_real (image_target, (x)))
-
-static inline grub_uint32_t
-grub_target_to_host32_real (const struct grub_install_image_target_desc *image_target,
-			    grub_uint32_t in)
-{
-  if (image_target->bigendian)
-    return grub_be_to_cpu32 (in);
-  else
-    return grub_le_to_cpu32 (in);
-}
-
-static inline grub_uint64_t
-grub_target_to_host64_real (const struct grub_install_image_target_desc *image_target,
-			    grub_uint64_t in)
-{
-  if (image_target->bigendian)
-    return grub_be_to_cpu64 (in);
-  else
-    return grub_le_to_cpu64 (in);
-}
-
-static inline grub_uint64_t
-grub_host_to_target64_real (const struct grub_install_image_target_desc *image_target,
-			    grub_uint64_t in)
-{
-  if (image_target->bigendian)
-    return grub_cpu_to_be64 (in);
-  else
-    return grub_cpu_to_le64 (in);
-}
-
-static inline grub_uint32_t
-grub_host_to_target32_real (const struct grub_install_image_target_desc *image_target,
-			    grub_uint32_t in)
-{
-  if (image_target->bigendian)
-    return grub_cpu_to_be32 (in);
-  else
-    return grub_cpu_to_le32 (in);
-}
-
-static inline grub_uint16_t
-grub_target_to_host16_real (const struct grub_install_image_target_desc *image_target,
-			    grub_uint16_t in)
-{
-  if (image_target->bigendian)
-    return grub_be_to_cpu16 (in);
-  else
-    return grub_le_to_cpu16 (in);
-}
-
-static inline grub_uint16_t
-grub_host_to_target16_real (const struct grub_install_image_target_desc *image_target,
-			    grub_uint16_t in)
-{
-  if (image_target->bigendian)
-    return grub_cpu_to_be16 (in);
-  else
-    return grub_cpu_to_le16 (in);
-}
-
-static inline grub_uint64_t
-grub_host_to_target_addr_real (const struct grub_install_image_target_desc *image_target, grub_uint64_t in)
-{
-  if (image_target->voidp_sizeof == 8)
-    return grub_host_to_target64_real (image_target, in);
-  else
-    return grub_host_to_target32_real (image_target, in);
-}
-
-static inline grub_uint64_t
-grub_target_to_host_real (const struct grub_install_image_target_desc *image_target, grub_uint64_t in)
-{
-  if (image_target->voidp_sizeof == 8)
-    return grub_target_to_host64_real (image_target, in);
-  else
-    return grub_target_to_host32_real (image_target, in);
-}
-
-#define GRUB_IEEE1275_NOTE_NAME "PowerPC"
-#define GRUB_IEEE1275_NOTE_TYPE 0x1275
-
-/* These structures are defined according to the CHRP binding to IEEE1275,
-   "Client Program Format" section.  */
-
-struct grub_ieee1275_note_desc
-{
-  grub_uint32_t real_mode;
-  grub_uint32_t real_base;
-  grub_uint32_t real_size;
-  grub_uint32_t virt_base;
-  grub_uint32_t virt_size;
-  grub_uint32_t load_base;
-};
-
-struct grub_ieee1275_note
-{
-  Elf32_Nhdr header;
-  char name[ALIGN_UP(sizeof (GRUB_IEEE1275_NOTE_NAME), 4)];
-  struct grub_ieee1275_note_desc descriptor;
-};
-
-#define GRUB_XEN_NOTE_NAME "Xen"
-
-#define grub_target_to_host(val) grub_target_to_host_real(image_target, (val))
-
 #include <grub/lib/LzmaEnc.h>
 
 static void *SzAlloc(void *p __attribute__ ((unused)), size_t size) { return xmalloc(size); }
@@ -830,111 +724,6 @@ compress_kernel (const struct grub_install_image_target_desc *image_target, char
   *core_size = kernel_size;
 }
 
-struct fixup_block_list
-{
-  struct fixup_block_list *next;
-  int state;
-  struct grub_pe32_fixup_block b;
-};
-
-/*
- * R_ARM_THM_CALL/THM_JUMP24
- *
- * Relocate Thumb (T32) instruction set relative branches:
- *   B.W, BL and BLX
- */
-static grub_err_t
-grub_arm_reloc_thm_call (grub_uint16_t *target, Elf32_Addr sym_addr)
-{
-  grub_int32_t offset;
-
-  offset = grub_arm_thm_call_get_offset (target);
-
-  grub_dprintf ("dl", "    sym_addr = 0x%08x", sym_addr);
-
-  offset += sym_addr;
-
-  grub_dprintf("dl", " BL*: target=%p, sym_addr=0x%08x, offset=%d\n",
-	       target, sym_addr, offset);
-
-  /* Keep traditional (pre-Thumb2) limits on blx. In any case if the kernel
-     is bigger than 2M  (currently under 150K) then we probably have a problem
-     somewhere else.  */
-  if (offset < -0x200000 || offset >= 0x200000)
-    return grub_error (GRUB_ERR_BAD_MODULE,
-		       "THM_CALL Relocation out of range.");
-
-  grub_dprintf ("dl", "    relative destination = %p",
-		(char *) target + offset);
-
-  return grub_arm_thm_call_set_offset (target, offset);
-}
-
-/*
- * R_ARM_THM_JUMP19
- *
- * Relocate conditional Thumb (T32) B<c>.W
- */
-static grub_err_t
-grub_arm_reloc_thm_jump19 (grub_uint16_t *target, Elf32_Addr sym_addr)
-{
-  grub_int32_t offset;
-
-  if (!(sym_addr & 1))
-    return grub_error (GRUB_ERR_BAD_MODULE,
-		       "Relocation targeting wrong execution state");
-
-  offset = grub_arm_thm_jump19_get_offset (target);
-
-  /* Adjust and re-truncate offset */
-  offset += sym_addr;
-
-  if (!grub_arm_thm_jump19_check_offset (offset))
-    return grub_error (GRUB_ERR_BAD_MODULE,
-		       "THM_JUMP19 Relocation out of range.");
-
-  grub_arm_thm_jump19_set_offset (target, offset);
-
-  return GRUB_ERR_NONE;
-}
-
-/*
- * R_ARM_JUMP24
- *
- * Relocate ARM (A32) B
- */
-static grub_err_t
-grub_arm_reloc_jump24 (grub_uint32_t *target, Elf32_Addr sym_addr)
-{
-  grub_int32_t offset;
-
-  if (sym_addr & 1)
-    return grub_error (GRUB_ERR_BAD_MODULE,
-		       "Relocation targeting wrong execution state");
-
-  offset = grub_arm_jump24_get_offset (target);
-  offset += sym_addr;
-
-  if (!grub_arm_jump24_check_offset (offset))
-    return grub_error (GRUB_ERR_BAD_MODULE,
-		       "JUMP24 Relocation out of range.");
-
-
-  grub_arm_jump24_set_offset (target, offset);
-
-  return GRUB_ERR_NONE;
-}
-
-#pragma GCC diagnostic ignored "-Wcast-align"
-
-#define MKIMAGE_ELF32 1
-#include "grub-mkimagexx.c"
-#undef MKIMAGE_ELF32
-
-#define MKIMAGE_ELF64 1
-#include "grub-mkimagexx.c"
-#undef MKIMAGE_ELF64
-
 const struct grub_install_image_target_desc *
 grub_install_get_image_target (const char *arg)
 {
@@ -987,21 +776,17 @@ grub_install_generate_image (const char *dir, const char *prefix,
 			     char *memdisk_path, char **pubkey_paths,
 			     size_t npubkeys, char *config_path,
 			     const struct grub_install_image_target_desc *image_target,
-			     int note,
+			     int note, grub_compression_t comp, const char *dtb_path)
-			     grub_compression_t comp)
 {
   char *kernel_img, *core_img;
-  size_t kernel_size, total_module_size, core_size, exec_size;
+  size_t total_module_size, core_size;
   size_t memdisk_size = 0, config_size = 0;
-  size_t prefix_size = 0;
+  size_t prefix_size = 0, dtb_size = 0;
   char *kernel_path;
   size_t offset;
   struct grub_util_path_list *path_list, *p;
-  size_t bss_size;
-  grub_uint64_t start_address;
-  void *rel_section = 0;
-  size_t reloc_size = 0, align;
   size_t decompress_size = 0;
+  struct grub_mkimage_layout layout;
 
   if (comp == GRUB_COMPRESSION_AUTO)
     comp = image_target->default_compression;
@@ -1041,6 +826,12 @@ grub_install_generate_image (const char *dir, const char *prefix,
       total_module_size += memdisk_size + sizeof (struct grub_module_header);
     }
 
+  if (dtb_path)
+    {
+      dtb_size = ALIGN_UP(grub_util_get_image_size (dtb_path), 4);
+      total_module_size += dtb_size + sizeof (struct grub_module_header);
+    }
+
   if (config_path)
     {
       config_size = ALIGN_ADDR (grub_util_get_image_size (config_path) + 1);
@@ -1063,15 +854,13 @@ grub_install_generate_image (const char *dir, const char *prefix,
 		  (unsigned long long) total_module_size);
 
   if (image_target->voidp_sizeof == 4)
-    kernel_img = load_image32 (kernel_path, &exec_size, &kernel_size, &bss_size,
+    kernel_img = grub_mkimage_load_image32 (kernel_path, total_module_size,
-			       total_module_size, &start_address, &rel_section,
+					    &layout, image_target);
-			       &reloc_size, &align, image_target);
   else
-    kernel_img = load_image64 (kernel_path, &exec_size, &kernel_size, &bss_size,
+    kernel_img = grub_mkimage_load_image64 (kernel_path, total_module_size,
-			       total_module_size, &start_address, &rel_section,
+					    &layout, image_target);
-			       &reloc_size, &align, image_target);
+  if (image_target->id == IMAGE_XEN && layout.align < 4096)
-  if (image_target->id == IMAGE_XEN && align < 4096)
+    layout.align = 4096;
-    align = 4096;
 
   if ((image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
       && (image_target->total_module_size != TARGET_NO_FIELD))
@@ -1080,7 +869,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
 
   if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
     {
-      memmove (kernel_img + total_module_size, kernel_img, kernel_size);
+      memmove (kernel_img + total_module_size, kernel_img, layout.kernel_size);
       memset (kernel_img, 0, total_module_size);
     }
 
@@ -1091,14 +880,14 @@ grub_install_generate_image (const char *dir, const char *prefix,
       if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
 	modinfo = (struct grub_module_info64 *) kernel_img;
       else
-	modinfo = (struct grub_module_info64 *) (kernel_img + kernel_size);
+	modinfo = (struct grub_module_info64 *) (kernel_img + layout.kernel_size);
       modinfo->magic = grub_host_to_target32 (GRUB_MODULE_MAGIC);
       modinfo->offset = grub_host_to_target_addr (sizeof (struct grub_module_info64));
       modinfo->size = grub_host_to_target_addr (total_module_size);
       if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
 	offset = sizeof (struct grub_module_info64);
       else
-	offset = kernel_size + sizeof (struct grub_module_info64);
+	offset = layout.kernel_size + sizeof (struct grub_module_info64);
     }
   else
     {
@@ -1107,14 +896,14 @@ grub_install_generate_image (const char *dir, const char *prefix,
       if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
 	modinfo = (struct grub_module_info32 *) kernel_img;
       else
-	modinfo = (struct grub_module_info32 *) (kernel_img + kernel_size);
+	modinfo = (struct grub_module_info32 *) (kernel_img + layout.kernel_size);
       modinfo->magic = grub_host_to_target32 (GRUB_MODULE_MAGIC);
       modinfo->offset = grub_host_to_target_addr (sizeof (struct grub_module_info32));
       modinfo->size = grub_host_to_target_addr (total_module_size);
       if (image_target->flags & PLATFORM_FLAGS_MODULES_BEFORE_KERNEL)
 	offset = sizeof (struct grub_module_info32);
       else
-	offset = kernel_size + sizeof (struct grub_module_info32);
+	offset = layout.kernel_size + sizeof (struct grub_module_info32);
     }
 
   for (p = path_list; p; p = p->next)
@@ -1165,6 +954,19 @@ grub_install_generate_image (const char *dir, const char *prefix,
       offset += memdisk_size;
     }
 
+  if (dtb_path)
+    {
+      struct grub_module_header *header;
+
+      header = (struct grub_module_header *) (kernel_img + offset);
+      header->type = grub_host_to_target32 (OBJ_TYPE_DTB);
+      header->size = grub_host_to_target32 (dtb_size + sizeof (*header));
+      offset += sizeof (*header);
+
+      grub_util_load_image (dtb_path, kernel_img + offset);
+      offset += dtb_size;
+    }
+
   if (config_path)
     {
       struct grub_module_header *header;
@@ -1193,8 +995,8 @@ grub_install_generate_image (const char *dir, const char *prefix,
 
   grub_util_info ("kernel_img=%p, kernel_size=0x%" GRUB_HOST_PRIxLONG_LONG,
 		  kernel_img,
-		  (unsigned long long) kernel_size);
+		  (unsigned long long) layout.kernel_size);
-  compress_kernel (image_target, kernel_img, kernel_size + total_module_size,
+  compress_kernel (image_target, kernel_img, layout.kernel_size + total_module_size,
 		   &core_img, &core_size, comp);
   free (kernel_img);
 
@@ -1246,7 +1048,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
       if (image_target->decompressor_uncompressed_size != TARGET_NO_FIELD)
 	*((grub_uint32_t *) (decompress_img
 			     + image_target->decompressor_uncompressed_size))
-	  = grub_host_to_target32 (kernel_size + total_module_size);
+	  = grub_host_to_target32 (layout.kernel_size + total_module_size);
 
       if (image_target->decompressor_uncompressed_addr != TARGET_NO_FIELD)
 	{
@@ -1279,16 +1081,17 @@ grub_install_generate_image (const char *dir, const char *prefix,
     case IMAGE_I386_PC_ELTORITO:
 	if (GRUB_KERNEL_I386_PC_LINK_ADDR + core_size > 0x78000
 	    || (core_size > (0xffff << GRUB_DISK_SECTOR_BITS))
-	    || (kernel_size + bss_size + GRUB_KERNEL_I386_PC_LINK_ADDR > 0x68000))
+	    || (layout.kernel_size + layout.bss_size
+		+ GRUB_KERNEL_I386_PC_LINK_ADDR > 0x68000))
 	  grub_util_error (_("core image is too big (0x%x > 0x%x)"),
 			   GRUB_KERNEL_I386_PC_LINK_ADDR + (unsigned) core_size,
 			   0x78000);
 	/* fallthrough */
     case IMAGE_COREBOOT:
     case IMAGE_QEMU:
-	if (kernel_size + bss_size + GRUB_KERNEL_I386_PC_LINK_ADDR > 0x68000)
+        if (image_target->elf_target != EM_ARM && layout.kernel_size + layout.bss_size + GRUB_KERNEL_I386_PC_LINK_ADDR > 0x68000)
 	  grub_util_error (_("kernel image is too big (0x%x > 0x%x)"),
-			   (unsigned) kernel_size + (unsigned) bss_size
+			   (unsigned) layout.kernel_size + (unsigned) layout.bss_size
 			   + GRUB_KERNEL_I386_PC_LINK_ADDR,
 			   0x68000);
 	break;
@@ -1410,13 +1213,13 @@ grub_install_generate_image (const char *dir, const char *prefix,
 	reloc_addr = ALIGN_UP (header_size + core_size,
 			       image_target->section_align);
 
-	pe_size = ALIGN_UP (reloc_addr + reloc_size,
+	pe_size = ALIGN_UP (reloc_addr + layout.reloc_size,
 			    image_target->section_align);
-	pe_img = xmalloc (reloc_addr + reloc_size);
+	pe_img = xmalloc (reloc_addr + layout.reloc_size);
 	memset (pe_img, 0, header_size);
 	memcpy ((char *) pe_img + header_size, core_img, core_size);
 	memset ((char *) pe_img + header_size + core_size, 0, reloc_addr - (header_size + core_size));
-	memcpy ((char *) pe_img + reloc_addr, rel_section, reloc_size);
+	memcpy ((char *) pe_img + reloc_addr, layout.reloc_section, layout.reloc_size);
 	header = pe_img;
 
 	/* The magic.  */
@@ -1450,14 +1253,14 @@ grub_install_generate_image (const char *dir, const char *prefix,
 	      (header + GRUB_PE32_MSDOS_STUB_SIZE + GRUB_PE32_SIGNATURE_SIZE
 	       + sizeof (struct grub_pe32_coff_header));
 	    o->magic = grub_host_to_target16 (GRUB_PE32_PE32_MAGIC);
-	    o->code_size = grub_host_to_target32 (exec_size);
+	    o->code_size = grub_host_to_target32 (layout.exec_size);
-	    o->data_size = grub_cpu_to_le32 (reloc_addr - exec_size
+	    o->data_size = grub_cpu_to_le32 (reloc_addr - layout.exec_size
 					     - header_size);
-	    o->bss_size = grub_cpu_to_le32 (bss_size);
+	    o->bss_size = grub_cpu_to_le32 (layout.bss_size);
-	    o->entry_addr = grub_cpu_to_le32 (start_address);
+	    o->entry_addr = grub_cpu_to_le32 (layout.start_address);
 	    o->code_base = grub_cpu_to_le32 (header_size);
 
-	    o->data_base = grub_host_to_target32 (header_size + exec_size);
+	    o->data_base = grub_host_to_target32 (header_size + layout.exec_size);
 
 	    o->image_base = 0;
 	    o->section_alignment = grub_host_to_target32 (image_target->section_align);
@@ -1475,7 +1278,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
 	    o->num_data_directories = grub_host_to_target32 (GRUB_PE32_NUM_DATA_DIRECTORIES);
 
 	    o->base_relocation_table.rva = grub_host_to_target32 (reloc_addr);
-	    o->base_relocation_table.size = grub_host_to_target32 (reloc_size);
+	    o->base_relocation_table.size = grub_host_to_target32 (layout.reloc_size);
 	    sections = o + 1;
 	  }
 	else
@@ -1488,11 +1291,11 @@ grub_install_generate_image (const char *dir, const char *prefix,
 	      (header + GRUB_PE32_MSDOS_STUB_SIZE + GRUB_PE32_SIGNATURE_SIZE
 	       + sizeof (struct grub_pe32_coff_header));
 	    o->magic = grub_host_to_target16 (GRUB_PE32_PE64_MAGIC);
-	    o->code_size = grub_host_to_target32 (exec_size);
+	    o->code_size = grub_host_to_target32 (layout.exec_size);
-	    o->data_size = grub_cpu_to_le32 (reloc_addr - exec_size
+	    o->data_size = grub_cpu_to_le32 (reloc_addr - layout.exec_size
 					     - header_size);
-	    o->bss_size = grub_cpu_to_le32 (bss_size);
+	    o->bss_size = grub_cpu_to_le32 (layout.bss_size);
-	    o->entry_addr = grub_cpu_to_le32 (start_address);
+	    o->entry_addr = grub_cpu_to_le32 (layout.start_address);
 	    o->code_base = grub_cpu_to_le32 (header_size);
 	    o->image_base = 0;
 	    o->section_alignment = grub_host_to_target32 (image_target->section_align);
@@ -1511,15 +1314,15 @@ grub_install_generate_image (const char *dir, const char *prefix,
 	      = grub_host_to_target32 (GRUB_PE32_NUM_DATA_DIRECTORIES);
 
 	    o->base_relocation_table.rva = grub_host_to_target32 (reloc_addr);
-	    o->base_relocation_table.size = grub_host_to_target32 (reloc_size);
+	    o->base_relocation_table.size = grub_host_to_target32 (layout.reloc_size);
 	    sections = o + 1;
 	  }
 	/* The sections.  */
 	text_section = sections;
 	strcpy (text_section->name, ".text");
-	text_section->virtual_size = grub_cpu_to_le32 (exec_size);
+	text_section->virtual_size = grub_cpu_to_le32 (layout.exec_size);
 	text_section->virtual_address = grub_cpu_to_le32 (header_size);
-	text_section->raw_data_size = grub_cpu_to_le32 (exec_size);
+	text_section->raw_data_size = grub_cpu_to_le32 (layout.exec_size);
 	text_section->raw_data_offset = grub_cpu_to_le32 (header_size);
 	text_section->characteristics = grub_cpu_to_le32_compile_time (
 						  GRUB_PE32_SCN_CNT_CODE
@@ -1528,10 +1331,10 @@ grub_install_generate_image (const char *dir, const char *prefix,
 
 	data_section = text_section + 1;
 	strcpy (data_section->name, ".data");
-	data_section->virtual_size = grub_cpu_to_le32 (kernel_size - exec_size);
+	data_section->virtual_size = grub_cpu_to_le32 (layout.kernel_size - layout.exec_size);
-	data_section->virtual_address = grub_cpu_to_le32 (header_size + exec_size);
+	data_section->virtual_address = grub_cpu_to_le32 (header_size + layout.exec_size);
-	data_section->raw_data_size = grub_cpu_to_le32 (kernel_size - exec_size);
+	data_section->raw_data_size = grub_cpu_to_le32 (layout.kernel_size - layout.exec_size);
-	data_section->raw_data_offset = grub_cpu_to_le32 (header_size + exec_size);
+	data_section->raw_data_offset = grub_cpu_to_le32 (header_size + layout.exec_size);
 	data_section->characteristics
 	  = grub_cpu_to_le32_compile_time (GRUB_PE32_SCN_CNT_INITIALIZED_DATA
 			      | GRUB_PE32_SCN_MEM_READ
@@ -1540,8 +1343,8 @@ grub_install_generate_image (const char *dir, const char *prefix,
 #if 0
 	bss_section = data_section + 1;
 	strcpy (bss_section->name, ".bss");
-	bss_section->virtual_size = grub_cpu_to_le32 (bss_size);
+	bss_section->virtual_size = grub_cpu_to_le32 (layout.bss_size);
-	bss_section->virtual_address = grub_cpu_to_le32 (header_size + kernel_size);
+	bss_section->virtual_address = grub_cpu_to_le32 (header_size + layout.kernel_size);
 	bss_section->raw_data_size = 0;
 	bss_section->raw_data_offset = 0;
 	bss_section->characteristics
@@ -1554,10 +1357,10 @@ grub_install_generate_image (const char *dir, const char *prefix,
     
 	mods_section = data_section + 1;
 	strcpy (mods_section->name, "mods");
-	mods_section->virtual_size = grub_cpu_to_le32 (reloc_addr - kernel_size - header_size);
+	mods_section->virtual_size = grub_cpu_to_le32 (reloc_addr - layout.kernel_size - header_size);
-	mods_section->virtual_address = grub_cpu_to_le32 (header_size + kernel_size + bss_size);
+	mods_section->virtual_address = grub_cpu_to_le32 (header_size + layout.kernel_size + layout.bss_size);
-	mods_section->raw_data_size = grub_cpu_to_le32 (reloc_addr - kernel_size - header_size);
+	mods_section->raw_data_size = grub_cpu_to_le32 (reloc_addr - layout.kernel_size - header_size);
-	mods_section->raw_data_offset = grub_cpu_to_le32 (header_size + kernel_size);
+	mods_section->raw_data_offset = grub_cpu_to_le32 (header_size + layout.kernel_size);
 	mods_section->characteristics
 	  = grub_cpu_to_le32_compile_time (GRUB_PE32_SCN_CNT_INITIALIZED_DATA
 			      | GRUB_PE32_SCN_MEM_READ
@@ -1565,9 +1368,9 @@ grub_install_generate_image (const char *dir, const char *prefix,
 
 	reloc_section = mods_section + 1;
 	strcpy (reloc_section->name, ".reloc");
-	reloc_section->virtual_size = grub_cpu_to_le32 (reloc_size);
+	reloc_section->virtual_size = grub_cpu_to_le32 (layout.reloc_size);
-	reloc_section->virtual_address = grub_cpu_to_le32 (reloc_addr + bss_size);
+	reloc_section->virtual_address = grub_cpu_to_le32 (reloc_addr + layout.bss_size);
-	reloc_section->raw_data_size = grub_cpu_to_le32 (reloc_size);
+	reloc_section->raw_data_size = grub_cpu_to_le32 (layout.reloc_size);
 	reloc_section->raw_data_offset = grub_cpu_to_le32 (reloc_addr);
 	reloc_section->characteristics
 	  = grub_cpu_to_le32_compile_time (GRUB_PE32_SCN_CNT_INITIALIZED_DATA
@@ -1775,9 +1578,9 @@ grub_install_generate_image (const char *dir, const char *prefix,
       hdr->ih_magic = grub_cpu_to_be32_compile_time (GRUB_UBOOT_IH_MAGIC);
       hdr->ih_time = grub_cpu_to_be32 (STABLE_EMBEDDING_TIMESTAMP);
       hdr->ih_size = grub_cpu_to_be32 (core_size);
-      hdr->ih_load = grub_cpu_to_be32 (image_target->link_addr);
+      hdr->ih_load = 0;
-      hdr->ih_ep = grub_cpu_to_be32 (image_target->link_addr);
+      hdr->ih_ep = 0;
-      hdr->ih_type = GRUB_UBOOT_IH_TYPE_KERNEL;
+      hdr->ih_type = GRUB_UBOOT_IH_TYPE_KERNEL_NOLOAD;
       hdr->ih_os = GRUB_UBOOT_IH_OS_LINUX;
       hdr->ih_arch = GRUB_UBOOT_IH_ARCH_ARM;
       hdr->ih_comp = GRUB_UBOOT_IH_COMP_NONE;
@@ -1838,7 +1641,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
 	  target_addr = (image_target->link_addr - decompress_size);
 	else
 	  target_addr = ALIGN_UP (image_target->link_addr
-				  + kernel_size + total_module_size, 32);
+				  + layout.kernel_size + total_module_size, 32);
 
 	ecoff_img = xmalloc (program_size + sizeof (*head) + sizeof (*section));
 	grub_memset (ecoff_img, 0, program_size + sizeof (*head) + sizeof (*section));
@@ -1885,16 +1688,16 @@ grub_install_generate_image (const char *dir, const char *prefix,
 	      target_addr = (image_target->link_addr - decompress_size);
 	    else
 	      target_addr = ALIGN_UP (image_target->link_addr
-				      + kernel_size + total_module_size, 32);
+				      + layout.kernel_size + total_module_size, 32);
 	  }
 	else
 	  target_addr = image_target->link_addr;
 	if (image_target->voidp_sizeof == 4)
-	  generate_elf32 (image_target, note, &core_img, &core_size,
+	  grub_mkimage_generate_elf32 (image_target, note, &core_img, &core_size,
-			  target_addr, align, kernel_size, bss_size);
+				       target_addr, &layout);
 	else
-	  generate_elf64 (image_target, note, &core_img, &core_size,
+	  grub_mkimage_generate_elf64 (image_target, note, &core_img, &core_size,
-			  target_addr, align, kernel_size, bss_size);
+				       target_addr, &layout);
       }
       break;
     }
@@ -1902,7 +1705,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
   grub_util_write_image (core_img, core_size, out, outname);
   free (core_img);
   free (kernel_path);
-  free (rel_section);
+  free (layout.reloc_section);
 
   grub_util_free_path_list (path_list);
 }