linux-kernel - [PATCH 13/30] mfd: cros

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Message-Id: <20190424232918.243308-14-gwendal@chromium.org>
Date:   Wed, 24 Apr 2019 16:29:01 -0700
From:   Gwendal Grignou <gwendal@...omium.org>
To:     enric.balletbo@...labora.com, bleung@...omium.org,
        groeck@...omium.org, lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org,
        Gwendal Grignou <gwendal@...omium.org>
Subject: [PATCH 13/30] mfd: cros_ec: Expand hash API

Improve API to verify EC image signature.

Signed-off-by: Gwendal Grignou <gwendal@...omium.org>
---
 include/linux/mfd/cros_ec_commands.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h
index d55f155eb735..29a996832af0 100644
--- a/include/linux/mfd/cros_ec_commands.h
+++ b/include/linux/mfd/cros_ec_commands.h
@@ -1988,8 +1988,15 @@ enum ec_vboot_hash_status {
  * If one of these is specified, the EC will automatically update offset and
  * size to the correct values for the specified image (RO or RW).
  */
-#define EC_VBOOT_HASH_OFFSET_RO 0xfffffffe
-#define EC_VBOOT_HASH_OFFSET_RW 0xfffffffd
+#define EC_VBOOT_HASH_OFFSET_RO		0xfffffffe
+#define EC_VBOOT_HASH_OFFSET_ACTIVE	0xfffffffd
+#define EC_VBOOT_HASH_OFFSET_UPDATE	0xfffffffc
+
+/*
+ * 'RW' is vague if there are multiple RW images; we mean the active one,
+ * so the old constant is deprecated.
+ */
+#define EC_VBOOT_HASH_OFFSET_RW EC_VBOOT_HASH_OFFSET_ACTIVE
 
 /*****************************************************************************/
 /*
-- 
2.21.0.593.g511ec345e18-goog