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Fill out ChromeOS specific coreboot table extensions

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ChromeOS uses two extensions to the coreboot table:
- ChromeOS specific GPIO description for onboard switches
- position of verified boot area in nvram

Change-Id: I8c389feec54c00faf2770aafbfd2223ac9da1362
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/866
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This commit is contained in:
Stefan Reinauer
2012-04-05 21:22:02 +02:00
parent 8c5b58e7c3
commit 31324c64e1
3 changed files with 81 additions and 0 deletions
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43
src/arch/x86/boot/coreboot_table.c
View File

@@ -179,6 +179,39 @@ static void lb_framebuffer(struct lb_header *header)
#endif
}
#if CONFIG_CHROMEOS
static void lb_gpios(struct lb_header *header)
{
struct lb_gpios *gpios;
gpios = (struct lb_gpios *)lb_new_record(header);
gpios->tag = LB_TAG_GPIO;
gpios->size = sizeof(*gpios);
gpios->count = 0;
fill_lb_gpios(gpios);
}
static void lb_vdat(struct lb_header *header)
{
struct lb_vdat* vdat;
vdat = (struct lb_vdat *)lb_new_record(header);
vdat->tag = LB_TAG_VDAT;
vdat->size = sizeof(*vdat);
acpi_get_vdat_info(&vdat->vdat_addr, &vdat->vdat_size);
}
static void lb_vbnv(struct lb_header *header)
{
struct lb_vbnv* vbnv;
vbnv = (struct lb_vbnv *)lb_new_record(header);
vbnv->tag = LB_TAG_VBNV;
vbnv->size = sizeof(*vbnv);
vbnv->vbnv_start = CONFIG_VBNV_OFFSET + 14;
vbnv->vbnv_size = CONFIG_VBNV_SIZE;
}
#endif
static void add_cbmem_pointers(struct lb_header *header)
{
/*
@@ -654,6 +687,16 @@ unsigned long write_coreboot_table(
/* Record our framebuffer */
lb_framebuffer(head);
#if CONFIG_CHROMEOS
/* Record our GPIO settings (ChromeOS specific) */
lb_gpios(head);
/* pass along the VDAT buffer adress */
lb_vdat(head);
/* pass along VBNV offsets in CMOS */
lb_vbnv(head);
#endif
add_cbmem_pointers(head);
/* Remember where my valid memory ranges are */

2
src/arch/x86/include/arch/coreboot_tables.h
View File

@@ -20,4 +20,6 @@ struct lb_memory *get_lb_mem(void);
int add_mainboard_resources(struct lb_memory *mem);
int add_northbridge_resources(struct lb_memory *mem);
void fill_lb_gpios(struct lb_gpios *gpios);
#endif /* COREBOOT_TABLE_H */