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WIP
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Vladimir Serbinenko committed
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@@ -0,0 +1,74 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2007,2008,2013 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/coreboot/lbio.h>
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#include <grub/types.h>
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#include <grub/err.h>
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#include <grub/misc.h>
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#include <grub/dl.h>
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#include <grub/arm/startup.h>
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GRUB_MOD_LICENSE ("GPLv3+");
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#pragma GCC diagnostic ignored "-Wcast-align"
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/* Helper for grub_linuxbios_table_iterate. */
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static int
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check_signature (grub_linuxbios_table_header_t tbl_header)
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{
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if (! grub_memcmp (tbl_header->signature, "LBIO", 4))
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return 1;
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return 0;
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}
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grub_err_t
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grub_linuxbios_table_iterate (int (*hook) (grub_linuxbios_table_item_t,
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void *),
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void *hook_data)
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{
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grub_linuxbios_table_header_t table_header
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= (grub_linuxbios_table_header_t) grub_arm_saved_registers.r[0];
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grub_linuxbios_table_item_t table_item;
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if (!check_signature (table_header))
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return 0;
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signature_found:
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table_item =
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(grub_linuxbios_table_item_t) ((char *) table_header +
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table_header->header_size);
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for (; table_item < (grub_linuxbios_table_item_t) ((char *) table_header
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+ table_header->header_size
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+ table_header->table_size);
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table_item = (grub_linuxbios_table_item_t) ((char *) table_item + table_item->size))
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{
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if (table_item->tag == GRUB_LINUXBIOS_MEMBER_LINK
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&& check_signature ((grub_linuxbios_table_header_t) (grub_addr_t)
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*(grub_uint64_t *) (table_item + 1)))
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{
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table_header = (grub_linuxbios_table_header_t) (grub_addr_t)
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*(grub_uint64_t *) (table_item + 1);
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goto signature_found;
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}
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if (hook (table_item, hook_data))
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return 1;
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}
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return 0;
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}
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@@ -0,0 +1,40 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2016 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/symbol.h>
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.file "coreboot.S"
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.text
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.syntax unified
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#if !defined (__thumb2__)
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.arch armv7a
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.arm
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#else
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.arch armv7
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.thumb
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#endif
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FUNCTION(grub_armv7_get_timer_value)
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isb
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mrrc p15, 1, r0, r1, c14
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bx lr
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FUNCTION(grub_armv7_get_timer_frequency)
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mrc p15, 0, r0, c14, c0, 0
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bx lr
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@@ -0,0 +1,127 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009,2013 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/kernel.h>
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#include <grub/mm.h>
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#include <grub/memory.h>
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#include <grub/machine/console.h>
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#include <grub/offsets.h>
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#include <grub/types.h>
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#include <grub/err.h>
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/loader.h>
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#include <grub/env.h>
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#include <grub/cache.h>
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#include <grub/time.h>
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#include <grub/symbol.h>
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#include <grub/video.h>
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extern grub_uint8_t _start[];
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extern grub_uint8_t _end[];
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extern grub_uint8_t _edata[];
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grub_uint64_t
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grub_armv7_get_timer_value(void);
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grub_uint32_t
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grub_armv7_get_timer_frequency(void);
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void __attribute__ ((noreturn))
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grub_exit (void)
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{
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/* We can't use grub_fatal() in this function. This would create an infinite
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loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit(). */
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while (1)
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grub_cpu_idle ();
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}
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static grub_uint64_t modend;
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static int have_memory = 0;
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/* Helper for grub_machine_init. */
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static int
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heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
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void *data __attribute__ ((unused)))
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{
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grub_uint64_t begin = addr, end = addr + size;
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#if GRUB_CPU_SIZEOF_VOID_P == 4
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/* Restrict ourselves to 32-bit memory space. */
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if (begin > GRUB_ULONG_MAX)
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return 0;
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if (end > GRUB_ULONG_MAX)
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end = GRUB_ULONG_MAX;
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#endif
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if (type != GRUB_MEMORY_AVAILABLE)
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return 0;
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if (modend && begin < modend)
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begin = modend;
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if (end <= begin)
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return 0;
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grub_mm_init_region ((void *) (grub_addr_t) begin, (grub_size_t) (end - begin));
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have_memory = 1;
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return 0;
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}
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static grub_uint32_t timer_frequency_in_khz;
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static grub_uint64_t
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get_time_ms (void)
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{
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return grub_divmod64 (grub_armv7_get_timer_value(), timer_frequency_in_khz, 0);
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}
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void
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grub_machine_init (void)
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{
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modend = grub_modules_get_end ();
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grub_video_coreboot_fb_early_init ();
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grub_machine_mmap_iterate (heap_init, NULL);
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if (!have_memory)
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grub_fatal ("No memory found");
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grub_video_coreboot_fb_late_init ();
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grub_font_init ();
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grub_gfxterm_init ();
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timer_frequency_in_khz = grub_armv7_get_timer_frequency() / 1000;
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if (timer_frequency_in_khz == 0)
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grub_fatal ("No timer found");
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grub_install_get_time_ms (get_time_ms);
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}
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void
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grub_machine_get_bootlocation (char **device __attribute__ ((unused)),
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char **path __attribute__ ((unused)))
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{
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}
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void
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grub_machine_fini (int flags __attribute__ ((unused)))
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{
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}
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