diff options
author | Daisuke Nojiri <dnojiri@chromium.org> | 2018-02-01 07:46:02 -0800 |
---|---|---|
committer | Martin Roth <martinroth@google.com> | 2018-02-05 23:37:05 +0000 |
commit | 07f9748f2255f7c157d55feccd12ff713ce255c6 (patch) | |
tree | e7d53f35fa835ce870672ce2ca293a7359d35192 /src/ec/google | |
parent | b0bea2bf6fd8d9ed1fe018ca55489d3adb33f0c5 (diff) | |
download | coreboot-07f9748f2255f7c157d55feccd12ff713ce255c6.tar.xz |
ec/google: Get OEM ID and SKU ID from EC
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>
Diffstat (limited to 'src/ec/google')
-rw-r--r-- | src/ec/google/chromeec/ec.c | 34 | ||||
-rw-r--r-- | src/ec/google/chromeec/ec.h | 9 | ||||
-rw-r--r-- | src/ec/google/chromeec/ec_commands.h | 60 |
3 files changed, 103 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index 89241daaa1..4bb7bb38cf 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -558,6 +558,40 @@ int google_chromeec_reboot(int dev_idx, enum ec_reboot_cmd type, uint8_t flags) return google_chromeec_command(&cec_cmd); } +static int cbi_get_uint32(uint32_t *id, uint32_t type) +{ + struct chromeec_command cmd; + struct ec_params_get_cbi p; + uint32_t r; + int rv; + + p.type = type; + + cmd.cmd_code = EC_CMD_GET_CROS_BOARD_INFO; + cmd.cmd_version = 0; + cmd.cmd_data_in = &p; + cmd.cmd_data_out = &r; + cmd.cmd_size_in = sizeof(p); + cmd.cmd_size_out = sizeof(r); + cmd.cmd_dev_index = 0; + + rv = google_chromeec_command(&cmd); + if (rv < 0) + return rv; + *id = r; + return 0; +} + +int google_chromeec_cbi_get_sku_id(uint32_t *id) +{ + return cbi_get_uint32(id, CBI_DATA_SKU_ID); +} + +int google_chromeec_cbi_get_oem_id(uint32_t *id) +{ + return cbi_get_uint32(id, CBI_DATA_OEM_ID); +} + #ifndef __SMM__ u16 google_chromeec_get_board_version(void) { diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h index 90bb6fa9d2..c15a50641a 100644 --- a/src/ec/google/chromeec/ec.h +++ b/src/ec/google/chromeec/ec.h @@ -64,6 +64,15 @@ int google_chromeec_vstore_write(int slot, uint8_t *data, size_t size); success, < 0 otherwise. */ int google_chromeec_reboot(int dev_idx, enum ec_reboot_cmd type, uint8_t flags); +/** + * Get OEM (or SKU) ID from Cros Board Info + * + * @param id [OUT] oem/sku id + * @return 0 on success or negative integer for errors. + */ +int google_chromeec_cbi_get_oem_id(uint32_t *id); +int google_chromeec_cbi_get_sku_id(uint32_t *id); + /* MEC uses 0x800/0x804 as register/index pair, thus an 8-byte resource. */ #define MEC_EMI_BASE 0x800 #define MEC_EMI_SIZE 8 diff --git a/src/ec/google/chromeec/ec_commands.h b/src/ec/google/chromeec/ec_commands.h index 92fb2a8a67..7c515c21b0 100644 --- a/src/ec/google/chromeec/ec_commands.h +++ b/src/ec/google/chromeec/ec_commands.h @@ -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. */ |