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libpayload: Add board id parsing

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Make board ID value supplied in the coreboot table available to the
bootloader on all three architectures.

BUG=chrome-os-partner:30489
TEST=none yet

Change-Id: I6c2d39e94212b55650929d7d99896581d23f789d
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 723e4a600a5d3a03e960169b04f8322f6dd2486b
Original-Change-Id: I7847bd9fe2d000a29c7ae95144f4868d926fb198
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/210430
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/8730
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Vadim Bendebury
2014-07-29 17:51:29 -07:00
committed by Patrick Georgi
parent 562d71faea
commit 6051e8334e
5 changed files with 54 additions and 0 deletions
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15
payloads/libpayload/arch/x86/coreboot.c
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@@ -141,6 +141,12 @@ static void cb_parse_acpi_gnvs(unsigned char *ptr, struct sysinfo_t *info)
info->acpi_gnvs = phys_to_virt(cbmem->cbmem_tab);
}
static void cb_parse_board_id(unsigned char *ptr, struct sysinfo_t *info)
{
struct cb_board_id *const cbbid = (struct cb_board_id *)ptr;
info->board_id = cbbid->board_id;
}
#ifdef CONFIG_LP_NVRAM
static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info)
{
@@ -206,6 +212,12 @@ static int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
info->header = header;
/*
* Valid board IDs are small numbers, preset this to an invalid value
* for the case when firmware does not supply the board ID.
*/
info->board_id = ~0;
/* Now, walk the tables. */
ptr += header->header_bytes;
@@ -300,6 +312,9 @@ static int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
case CB_TAG_X86_ROM_MTRR:
cb_parse_x86_rom_var_mtrr(ptr, info);
break;
case CB_TAG_BOARD_ID:
cb_parse_board_id(ptr, info);
break;
}
ptr += rec->size;