diff options
| author | Richard Zhu <r65037@freescale.com> | 2010-07-12 17:31:44 +0800 |
|---|---|---|
| committer | Richard Zhu <r65037@freescale.com> | 2010-07-16 15:36:53 +0800 |
| commit | ea5e5f259ba23b5e2016b4199722f19db3e16a66 (patch) | |
| tree | b3685796b2072866a980880e6dff6c6708b30f0e /include | |
| parent | 1667105ae020df9d3e8f0ac5516934d94311b124 (diff) | |
ENGR00125052-1 Common codes changes when enable the eMMC44 DDR
The modifications of linux kernel common codes
when enable the eMMC44 DDR mode
Signed-off-by: Richard Zhu <r65037@freescale.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmc/card.h | 2 | ||||
| -rw-r--r-- | include/linux/mmc/host.h | 2 | ||||
| -rw-r--r-- | include/linux/mmc/mmc.h | 3 |
3 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 403aa505f27e..c0f729f07db8 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -42,6 +42,8 @@ struct mmc_csd { struct mmc_ext_csd { unsigned int hs_max_dtr; unsigned int sectors; + unsigned int card_type; +#define MMC_DDR_MODE_MASK (0x3<<2) }; struct sd_scr { diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 3e7615e9087e..ea3a90d237b9 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -42,6 +42,7 @@ struct mmc_ios { #define MMC_BUS_WIDTH_1 0 #define MMC_BUS_WIDTH_4 2 #define MMC_BUS_WIDTH_8 3 +#define MMC_BUS_WIDTH_DDR 8 unsigned char timing; /* timing specification used */ @@ -118,6 +119,7 @@ struct mmc_host { #define MMC_CAP_SPI (1 << 4) /* Talks only SPI protocols */ #define MMC_CAP_NEEDS_POLL (1 << 5) /* Needs polling for card-detection */ #define MMC_CAP_8_BIT_DATA (1 << 6) /* Can the host do 8 bit transfers */ +#define MMC_CAP_DATA_DDR (1 << 7) /* Can the host do ddr transfers */ /* host specific block data */ unsigned int max_seg_size; /* see blk_queue_max_segment_size */ diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 14b81f3e5232..3fb7289fce73 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -265,10 +265,13 @@ struct _mmc_csd { #define EXT_CSD_CARD_TYPE_26 (1<<0) /* Card can run at 26MHz */ #define EXT_CSD_CARD_TYPE_52 (1<<1) /* Card can run at 52MHz */ +#define EXT_CSD_CARD_TYPE_DDR_52 (2<<1) /* Card can run at DDR 52MHz */ #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */ #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ +#define EXT_CSD_BUS_WIDTH_4_DDR 5 /* Card is in 4 bit ddr mode */ +#define EXT_CSD_BUS_WIDTH_8_DDR 6 /* Card is in 8 bit ddr mode */ /* * MMC_SWITCH access modes |