From f4a166292806342ea74935954a493650ec2cface Mon Sep 17 00:00:00 2001 From: Asutosh Das Date: Fri, 21 Mar 2014 11:14:51 +0530 Subject: mmc: core: Add support to read command queue parameters eMMC cards with EXT_CSD version >= 7, optionally support command queuing feature as defined by JEDEC eMMC5.1. Add support for probing command queue feature for such type of cards. Change-Id: I9454d0d6997ccbd1778a147354859467f4a9a7d3 Signed-off-by: Sujit Reddy Thumma Signed-off-by: Asutosh Das Signed-off-by: Venkat Gopalakrishnan [subhashj@codeaurora.org: fixed trivial merge conflicts] Signed-off-by: Subhash Jadavani --- include/linux/mmc/card.h | 2 ++ include/linux/mmc/mmc.h | 3 +++ 2 files changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index c3e6fbfbcfab..59ef4e717beb 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -119,6 +119,8 @@ struct mmc_ext_csd { u8 raw_pwr_cl_ddr_200_360; /* 253 */ u8 raw_bkops_status; /* 246 */ u8 raw_sectors[4]; /* 212 - 4 bytes */ + u8 cmdq_depth; /* 307 */ + u8 cmdq_support; /* 308 */ unsigned int feature_support; #define MMC_DISCARD_FEATURE BIT(0) /* CMD38 feature */ diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 6f5b437311c2..a85e7e3f9bb6 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -273,6 +273,9 @@ struct _mmc_csd { #define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */ #define EXT_CSD_PWR_CL_DDR_200_360 253 /* RO */ #define EXT_CSD_FIRMWARE_VERSION 254 /* RO, 8 bytes */ +#define EXT_CSD_CMDQ_DEPTH 307 /* RO */ +#define EXT_CSD_CMDQ_SUPPORT 308 /* RO */ + #define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */ #define EXT_CSD_SUPPORTED_MODE 493 /* RO */ #define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */ #define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */ -- cgit v1.2.3