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DTB overrides

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This commit is contained in:
Vladimir Serbinenko committed 2016-02-22 00:05:40 +01:00
1 parent 0b71582111
commit 3b1bb7f3eb
7 files changed
+57 -40
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grub-core/kern/arm/coreboot/init.c
+22 -32
View File
@@ -93,33 +93,22 @@ heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
return 0;
}
static char *mobo_vendor, *mobo_part_number;
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)))
{
switch (table_item->tag)
if (table_item->tag != GRUB_LINUXBIOS_MEMBER_DTB)
return 0;
if (grub_fdt_check_header (table_item + 1, table_item->size) >= 0)
{
case GRUB_LINUXBIOS_MEMBER_MAINBOARD:
{
struct grub_linuxbios_mainboard *mb;
mb = (struct grub_linuxbios_mainboard *) (table_item + 1);
mobo_vendor = mb->strings + mb->vendor;
mobo_part_number = mb->strings + mb->part_number;
return 0;
}
case GRUB_LINUXBIOS_MEMBER_DTB:
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;
dtb = table_item + 1;
dtb_size = table_item->size;
}
else
grub_printf ("Invalid DTB supplied by coreboot\n");
return 0;
}
@@ -127,6 +116,8 @@ iterate_linuxbios_table (grub_linuxbios_table_item_t table_item, void *data __at
void
grub_machine_init (void)
{
struct grub_module_header *header;
modend = grub_modules_get_end ();
grub_video_coreboot_fb_early_init ();
@@ -140,22 +131,21 @@ grub_machine_init (void)
grub_font_init ();
grub_gfxterm_init ();
grub_linuxbios_table_iterate (iterate_linuxbios_table, 0);
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)
{
struct grub_fdt_board *cur;
for (cur = grub_fdt_boards; cur->dtb; cur++)
if (grub_strcmp (cur->vendor, mobo_vendor) == 0
&& grub_strcmp (cur->part, mobo_part_number) == 0)
{
dtb = cur->dtb;
dtb_size = cur->dtb_size;
break;
}
}
grub_linuxbios_table_iterate (iterate_linuxbios_table, 0);
if (!dtb)
grub_fatal ("No saved DTB found for <%s> <%s> and none is supplied", mobo_vendor, mobo_part_number);
grub_fatal ("No DTB found");
grub_fdtbus_init (dtb, dtb_size);
grub_machine_timer_init ();