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libpayload: Parse MTC and fill mtc_start and mtc_size 

Parse coreboot table and fill in mtc_start and mtc_size values in
sysinfo structure.

BUG=chrome-os-partner:41125
BRANCH=None
TEST=Compiles successfully and boots to kernel prompt

Change-Id: If210ea0a105f6879686e6e930cb29e66bc5e6cd0
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: b70d0d35c85fa1a2317b0239276d5d9e7a550472
Original-Change-Id: I60b6f8ed4c704bd5ad6cce7fce2b9095babe181e
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/276778
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/10563
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
This commit is contained in:
Furquan Shaikh 2015-06-10 20:38:48 -07:00 committed by Patrick Georgi
parent 78c6e3ec42
commit 3cec871eaa
3 changed files with 14 additions and 0 deletions
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1
payloads/libpayload/include/coreboot_tables.h
View File

@ -190,6 +190,7 @@ struct cb_gpios {
#define CB_TAG_VBOOT_HANDOFF 0x0020
#define CB_TAG_DMA 0x0022
#define CB_TAG_RAM_OOPS 0x0023
#define CB_TAG_MTC 0x002b
struct lb_range {
uint32_t tag;
uint32_t size;

2
payloads/libpayload/include/sysinfo.h
View File

@ -124,6 +124,8 @@ struct sysinfo_t {
uint32_t sector_size;
uint32_t erase_cmd;
} spi_flash;
uint64_t mtc_start;
uint32_t mtc_size;
};
extern struct sysinfo_t lib_sysinfo;

11
payloads/libpayload/libc/coreboot.c
View File

@ -203,6 +203,14 @@ static void cb_parse_ramoops(void *ptr, struct sysinfo_t *info)
info->ramoops_buffer_size = ramoops->range_size;
}
static void cb_parse_mtc(void *ptr, struct sysinfo_t *info)
{
struct lb_range *mtc = (struct lb_range *)ptr;
info->mtc_start = mtc->range_start;
info->mtc_size = mtc->range_size;
}
static void cb_parse_spi_flash(void *ptr, struct sysinfo_t *info)
{
struct cb_spi_flash *flash = (struct cb_spi_flash *)ptr;
@ -361,6 +369,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
case CB_TAG_SPI_FLASH:
cb_parse_spi_flash(ptr, info);
break;
case CB_TAG_MTC:
cb_parse_mtc(ptr, info);
break;
default:
cb_parse_arch_specific(rec, info);
break;