linux-kernel - [PATCH v3 27/30] mfd: cros

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Message-Id: <20190509211353.213194-28-gwendal@chromium.org>
Date:   Thu,  9 May 2019 14:13:50 -0700
From:   Gwendal Grignou <gwendal@...omium.org>
To:     enric.balletbo@...labora.com, bleung@...omium.org,
        groeck@...omium.org, lee.jones@...aro.org, jic23@...nel.org,
        broonie@...nel.org, cychiang@...omium.org, tiwai@...e.com
Cc:     linux-iio@...r.kernel.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org,
        Gwendal Grignou <gwendal@...omium.org>
Subject: [PATCH v3 27/30] mfd: cros_ec: Add API for rwsig

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

Acked-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
Acked-by: Benson Leung <bleung@...omium.org>
Signed-off-by: Gwendal Grignou <gwendal@...omium.org>
---
 include/linux/mfd/cros_ec_commands.h | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

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 */
 
-- 
2.21.0.1020.gf2820cf01a-goog