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ec/google: Get OEM ID and SKU ID from EC

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This patch adds EC_CMD_GET_CROS_BOARD_INFO and two APIs to fetch
OEM ID and SKU ID from cros EC.

CBI abbreviates Cros Board Info.

BUG=b:70294260
BRANCH=none
TEST=Verify AP log shows expected OEM ID and SKU ID on Fizz.

Change-Id: Iff69a2dc0e562d87dd287f79c407f23aeb09fb9e
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://review.coreboot.org/23549
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Daisuke Nojiri
2018-02-01 07:46:02 -08:00
committed by Martin Roth
parent b0bea2bf6f
commit 07f9748f22
3 changed files with 103 additions and 0 deletions
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60
src/ec/google/chromeec/ec_commands.h
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@ -4363,6 +4363,66 @@ struct __ec_align4 ec_params_rwsig_action {
uint32_t action;
};
/* Run verification on a slot */
#define EC_CMD_EFS_VERIFY 0x011E
struct __ec_align1 ec_params_efs_verify {
uint8_t region; /* enum ec_flash_region */
};
/*
* Retrieve info from Cros Board Info store. Response is based on the data
* type. Integers return a uint32. Strings return a string, using the response
* size to determine how big it is.
*/
#define EC_CMD_GET_CROS_BOARD_INFO 0x011F
/*
* Write info into Cros Board Info on EEPROM. Write fails if the board has
* hardware write-protect enabled.
*/
#define EC_CMD_SET_CROS_BOARD_INFO 0x0120
enum cbi_data_type {
/* integer types */
CBI_DATA_BOARD_VERSION = 0,
CBI_DATA_OEM_ID = 1,
CBI_DATA_SKU_ID = 2,
/* string types */
CBI_FIRST_STRING_PARAM = 0x1000,
CBI_DATA_COUNT,
};
/*
* Flags to control read operation
*
* RELOAD: Invalidate cache and read data from EEPROM. Useful to verify
* write was successful without reboot.
*/
#define CBI_GET_RELOAD (1 << 0)
struct __ec_align4 ec_params_get_cbi {
uint32_t type; /* enum cbi_data_type */
uint32_t flag; /* CBI_GET_* */
};
/*
* Flags to control write behavior.
*
* NO_SYNC: Makes EC update data in RAM but skip writing to EEPROM. It's
* useful when writing multiple fields in a row.
* INIT: Needs to be set when creating a new CBI from scratch. All fields
* will be initialized to zero first.
*/
#define CBI_SET_NO_SYNC (1 << 0)
#define CBI_SET_INIT (1 << 1)
struct __ec_align1 ec_params_set_cbi {
uint32_t type; /* enum cbi_data_type */
uint32_t flag; /* CBI_SET_* */
uint32_t data; /* For numeric value */
uint8_t raw[]; /* For string and raw data */
};
/*****************************************************************************/
/* The command range 0x200-0x2FF is reserved for Rotor. */