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cbtables: Add RAM config information

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This adds the RAM config code to the coreboot tables. The purpose is
to expose this information to software running at higher levels, e.g.
to print the RAM config coreboot is using as part of factory tests.

The prototype for ram_code() is in boardid.h since they are closely
related and will likely have common code.

BUG=chrome-os-partner:31728
BRANCH=none
TEST=tested w/ follow-up CLs on pinky

Signed-off-by: David Hendricks <dhendrix@chromium.org>
Change-Id: Idd38ec5b6af16e87dfff2e3750c18fdaea604400
Reviewed-on: https://chromium-review.googlesource.com/227248
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
David Hendricks 2014-11-03 17:42:09 -08:00 • committed by chrome-internal-fetch
commit 77dd5fb934
4 changed files with 31 additions and 0 deletions
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1
src/include/boardid.h
View file

@ -23,5 +23,6 @@
#include <stdint.h>
uint8_t board_id(void);
uint32_t ram_code(void);
#endif /* __INCLUDE_BOARDID_H__ */

7
src/include/boot/coreboot_tables.h
View file

@ -270,6 +270,13 @@ struct lb_macs {
struct mac_address mac_addrs[0];
};
#define LB_TAG_RAM_CODE 0x0028
struct lb_ram_code {
uint32_t tag;
uint32_t size;
uint32_t ram_code;
};
/* The following structures are for the cmos definitions table */
#define LB_TAG_CMOS_OPTION_TABLE 200
/* cmos header record */