diff options
| author | Vadim Bendebury <vbendeb@chromium.org> | 2012-05-22 15:10:54 -0700 |
|---|---|---|
| committer | Vadim Bendebury <vbendeb@chromium.org> | 2012-05-22 15:10:54 -0700 |
| commit | d80c3629691139f4ce4bdb6dde8c216fd755c340 (patch) | |
| tree | 1c077e64026807b12f2c27599125a148c66a23d3 | |
| parent | a7d62b4fd4b4cd9e290bbd1e9e2e479f9ab9455e (diff) | |
| download | chrome-ec-d80c3629691139f4ce4bdb6dde8c216fd755c340.tar.gz | |
Add EC command to report board version
The main CPU might need to know the particular hardware version the
system is running on. This information is available to the EC, this
change adds a mechanism for the main CPU to request this information.
The board version is defined as a flat 16 bit number.
BUG=chrome-os-partner:8722
TEST=manual
. this change was tested in concert with the appropriate coreboot
modification, the proto1 board returns board version of 0. The
code was modified manually to return a one off version - and the
coreboot indeed observed board version of 1
Change-Id: If434d33f43783b18cb202ea15819bd5804694b8e
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
| -rw-r--r-- | common/system_common.c | 13 | ||||
| -rw-r--r-- | include/ec_commands.h | 6 |
2 files changed, 19 insertions, 0 deletions
diff --git a/common/system_common.c b/common/system_common.c index f791745c0d..f80db6f86c 100644 --- a/common/system_common.c +++ b/common/system_common.c @@ -637,6 +637,19 @@ static int host_command_get_chip_info(uint8_t *data, int *resp_size) DECLARE_HOST_COMMAND(EC_CMD_GET_CHIP_INFO, host_command_get_chip_info); +int host_command_get_board_version(uint8_t *data, int *resp_size) +{ + struct ec_params_board_version *board_v = + (struct ec_params_board_version *) data; + + board_v->board_version = (uint16_t) system_get_board_version(); + + *resp_size = sizeof(struct ec_params_board_version); + return EC_RES_SUCCESS; +} +DECLARE_HOST_COMMAND(EC_CMD_GET_BOARD_VERSION, host_command_get_board_version); + + #ifdef CONFIG_REBOOT_EC static void clean_busy_bits(void) { #ifdef CONFIG_LPC diff --git a/include/ec_commands.h b/include/ec_commands.h index ea699f3d09..58490eb108 100644 --- a/include/ec_commands.h +++ b/include/ec_commands.h @@ -239,6 +239,12 @@ struct ec_response_get_chip_info { char revision[32]; /* Mask version */ } __attribute__ ((packed)); +/* Get board HW version. */ +#define EC_CMD_GET_BOARD_VERSION 0x06 +struct ec_params_board_version { + uint16_t board_version; /* A monotonously incrementing number. */ +} __attribute__ ((packed)); + /*****************************************************************************/ /* Flash commands */ |