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libpayload: Add RAM code to sysinfo_t 

This adds CB_TAG_RAM_CODE and an entry to sysinfo_t.

BUG=chrome-os-partner:31728
BRANCH=none
TEST=Built and booted on pinky w/ depthcharge patch and saw that
/proc/device-tree/firmware/coreboot/ram-code contains correct
value

Change-Id: I35ee1bcdc77bc6d4d24c1e804aefdbbfaa3875a4
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: ca6d044f2e719ded1d78a5ab3d923e06c3b88d6b
Original-Signed-off-by: David Hendricks <dhendrix@chromium.org>
Original-Change-Id: I69ee1fc7bc09c9d1c387efe2d171c57e62cfaf3f
Original-Reviewed-on: https://chromium-review.googlesource.com/231132
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/8755
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
David Hendricks 2014-11-20 13:59:45 -08:00 committed by Patrick Georgi
parent 6b322cc619
commit 272afe8030
3 changed files with 21 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
payloads/libpayload/include/coreboot_tables.h
View File

@ -239,6 +239,13 @@ struct cb_macs {
struct mac_address mac_addrs[0];
};
#define CB_TAG_RAM_CODE 0x0028
struct cb_ram_code {
uint32_t tag;
uint32_t size;
uint32_t ram_code;
};
#define CB_TAG_CMOS_OPTION_TABLE 0x00c8
struct cb_cmos_option_table {
u32 tag;

1
payloads/libpayload/include/sysinfo.h
View File

@ -114,6 +114,7 @@ struct sysinfo_t {
void *mrc_cache;
void *acpi_gnvs;
u32 board_id;
u32 ram_code;
void *wifi_calibration;
uint64_t ramoops_buffer;
uint32_t ramoops_buffer_size;

15
payloads/libpayload/libc/coreboot.c
View File

@ -154,6 +154,12 @@ static void cb_parse_board_id(unsigned char *ptr, struct sysinfo_t *info)
info->board_id = cbbid->board_id;
}
static void cb_parse_ram_code(unsigned char *ptr, struct sysinfo_t *info)
{
struct cb_ram_code *const ram_code = (struct cb_ram_code *)ptr;
info->ram_code = ram_code->ram_code;
}
#ifdef CONFIG_LP_NVRAM
static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info)
{
@ -228,10 +234,12 @@ 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.
* Board straps represented by numerical values are small numbers.
* Preset them to an invalid value in case the firmware does not
* supply the info.
*/
info->board_id = ~0;
info->ram_code = ~0;
/* Now, walk the tables. */
ptr += header->header_bytes;
@ -329,6 +337,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
case CB_TAG_BOARD_ID:
cb_parse_board_id(ptr, info);
break;
case CB_TAG_RAM_CODE:
cb_parse_ram_code(ptr, info);
break;
case CB_TAG_WIFI_CALIBRATION:
cb_parse_wifi_calibration(ptr, info);
break;