commit 771984c89bd0be338ab7adcdba67d96d9a20112e
author Gwendal Grignou <gwendal@chromium.org> Tue Jul 01 12:46:18 2014 -0700
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Tue Jul 29 02:21:12 2014 +0000
tree 9290c76d790db988bb4521d3d524d196698b3a2f
parent e966e671b8ee7d505d239c7e52bec6c18e29910f

[mmc] Add Field Firmware Upgrade command

Add ffu command for updating eMMC firmware.
The kernel must have support for 2 new ioctls:
MMC_FFU_DOWNLOAD_OP and MMC_FFU_INSTALL_OP.

TEST=Upgrading Hynix eMMC on gnawty
BUG=None

Change-Id: I10b846a56f80b72775da94365c3269571dfa632f
Reviewed-on: https://chromium-review.googlesource.com/206888
Reviewed-by: Puthikorn Voravootivat <puthik@chromium.org>
Commit-Queue: Gwendal Grignou <gwendal@chromium.org>
Tested-by: Gwendal Grignou <gwendal@chromium.org>

mmc.h

diff --git a/mmc.h b/mmc.h
index 9871d62..b338e1d 100644
--- a/mmc.h
+++ b/mmc.h
@@ -64,6 +64,7 @@
 #define EXT_CSD_ENH_START_ADDR_2	138
 #define EXT_CSD_ENH_START_ADDR_1	137
 #define EXT_CSD_ENH_START_ADDR_0	136
+#define EXT_CSD_REV			192
 #define EXT_CSD_NATIVE_SECTOR_SIZE	63 /* R */
 #define EXT_CSD_USE_NATIVE_SECTOR	62 /* R/W */
 #define EXT_CSD_DATA_SECTOR_SIZE	61 /* R */
@@ -79,6 +80,9 @@
  */
 #define BKOPS_ENABLE	(1<<0)
 
+#define MMC_FFU_DOWNLOAD_OP	302
+#define MMC_FFU_INSTALL_OP	303
+
 /*
  * EXT_CSD field definitions
  */