mfd: cros_ec: Add API for rwsig

Add command to retrieve signature of image stored in the RW memory
slot(s).

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h
index 4a9ac3861bdd..3d3a37b11002 100644
--- a/include/linux/mfd/cros_ec_commands.h
+++ b/include/linux/mfd/cros_ec_commands.h
@@ -5043,6 +5043,32 @@ struct ec_response_pd_chip_info_v1 {
         };
 } __ec_align2;
 
+/* Run RW signature verification and get status */
+#define EC_CMD_RWSIG_CHECK_STATUS       0x011C
+
+struct ec_response_rwsig_check_status {
+        uint32_t status;
+} __ec_align4;
+
+/* For controlling RWSIG task */
+#define EC_CMD_RWSIG_ACTION     0x011D
+
+enum rwsig_action {
+        RWSIG_ACTION_ABORT = 0,         /* Abort RWSIG and prevent jumping */
+        RWSIG_ACTION_CONTINUE = 1,      /* Jump to RW immediately */
+};
+
+struct ec_params_rwsig_action {
+        uint32_t action;
+} __ec_align4;
+
+/* Run verification on a slot */
+#define EC_CMD_EFS_VERIFY       0x011E
+
+struct ec_params_efs_verify {
+        uint8_t region;         /* enum ec_flash_region */
+} __ec_align1;
+
 /*****************************************************************************/
 /* Fingerprint MCU commands: range 0x0400-0x040x */