commit e0c368d571d946ff40f068344b5c2df90c93dd2e
author Namjae Jeon <linkinjeon@gmail.com> Thu Oct 06 23:41:38 2011 +0900
committer Chris Ball <cjb@laptop.org> Wed Oct 26 16:32:17 2011 -0400
tree 509fdad0059dac018128610723557b4ca12f29d2
parent 5238acbe36dd5100fb6b035a995ae5fc89dd0708

mmc: core: general purpose MMC partition support.

It allows gerneral purpose partitions in MMC Device.  And I try to simply
make mmc_blk_alloc_parts using mmc_part structure suggested by Andrei
Warkentin.  After patching, we see general purpose partitions like this:
> cat /proc/partitions
          179 0 847872 mmcblk0
          179 192 4096 mmcblk0gp3
          179 160 4096 mmcblk0gp2
          179 128 4096 mmcblk0gp1
          179 96  1052672 mmcblk0gp0
          179 64  1024 mmcblk0boot1
          179 32  1024 mmcblk0boot0

Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Andrei Warkentin <awarkentin@vmware.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

include/linux/mmc/mmc.h

diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 50af227..ea558eb 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -270,6 +270,7 @@
  * EXT_CSD fields
  */
 
+#define EXT_CSD_GP_SIZE_MULT		143	/* R/W */
 #define EXT_CSD_PARTITION_ATTRIBUTE	156	/* R/W */
 #define EXT_CSD_PARTITION_SUPPORT	160	/* RO */
 #define EXT_CSD_RST_N_FUNCTION		162	/* R/W */
@@ -313,7 +314,9 @@
 
 #define EXT_CSD_PART_CONFIG_ACC_MASK	(0x7)
 #define EXT_CSD_PART_CONFIG_ACC_BOOT0	(0x1)
-#define EXT_CSD_PART_CONFIG_ACC_BOOT1	(0x2)
+#define EXT_CSD_PART_CONFIG_ACC_GP0	(0x4)
+
+#define EXT_CSD_PART_SUPPORT_PART_EN	(0x1)
 
 #define EXT_CSD_CMD_SET_NORMAL		(1<<0)
 #define EXT_CSD_CMD_SET_SECURE		(1<<1)