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Add support for device-tree-based drivers.

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This commit is contained in:
Vladimir Serbinenko 2017-05-08 21:19:59 +02:00
parent 24e37a8852
commit fcbb723d4b
13 changed files with 519 additions and 52 deletions
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20
grub-core/kern/arm/coreboot/init.c
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@ -33,6 +33,7 @@
#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[];
@ -99,6 +100,10 @@ heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
void
grub_machine_init (void)
{
struct grub_module_header *header;
void *dtb = 0;
grub_size_t dtb_size = 0;
modend = grub_modules_get_end ();
grub_video_coreboot_fb_early_init ();
@ -112,6 +117,21 @@ grub_machine_init (void)
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_fatal ("No DTB found");
grub_fdtbus_init (dtb, dtb_size);
grub_machine_timer_init ();
}