From 31324c64e12135f09590884421cbcbcabec1a62f Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Thu, 5 Apr 2012 21:22:02 +0200 Subject: Fill out ChromeOS specific coreboot table extensions 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 Reviewed-on: http://review.coreboot.org/866 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- src/arch/x86/boot/coreboot_table.c | 43 +++++++++++++++++++++++++++++ src/arch/x86/include/arch/coreboot_tables.h | 2 ++ 2 files changed, 45 insertions(+) (limited to 'src/arch') diff --git a/src/arch/x86/boot/coreboot_table.c b/src/arch/x86/boot/coreboot_table.c index a9ff6f0f1b..219de7adae 100644 --- a/src/arch/x86/boot/coreboot_table.c +++ b/src/arch/x86/boot/coreboot_table.c @@ -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 */ diff --git a/src/arch/x86/include/arch/coreboot_tables.h b/src/arch/x86/include/arch/coreboot_tables.h index 773e053835..b177949fb1 100644 --- a/src/arch/x86/include/arch/coreboot_tables.h +++ b/src/arch/x86/include/arch/coreboot_tables.h @@ -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 */ -- cgit v1.2.3