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| author | Sonny Rao <sonnyrao@chromium.org> | 2014-08-05 03:19:50 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2014-08-11 09:52:55 +0200 |
| commit | 3a33a94ce27068c8fef63a4f9ab7cff1210e2a4e (patch) | |
| tree | 08c5707e295a6948eacc88a971eb1cccac38a8d8 /drivers/mmc/host/dw_mmc.h | |
| parent | mmc: sdhci-pxav3: Use devm_* managed helpers (diff) | |
| download | linux-3a33a94ce27068c8fef63a4f9ab7cff1210e2a4e.tar.xz linux-3a33a94ce27068c8fef63a4f9ab7cff1210e2a4e.zip | |
mmc: dw_mmc: change to use recommended reset procedure
This patch changes the fifo reset code to follow the reset procedure
outlined in the documentation of Synopsys Mobile storage host databook.
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
[sonnyrao: fix compile for !CONFIG_MMC_DW_IDMAC case]
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/dw_mmc.h')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h index 738fa241d058..08fd956d81f3 100644 --- a/drivers/mmc/host/dw_mmc.h +++ b/drivers/mmc/host/dw_mmc.h @@ -129,6 +129,7 @@ #define SDMMC_CMD_INDX(n) ((n) & 0x1F) /* Status register defines */ #define SDMMC_GET_FCNT(x) (((x)>>17) & 0x1FFF) +#define SDMMC_STATUS_DMA_REQ BIT(31) /* FIFOTH register defines */ #define SDMMC_SET_FIFOTH(m, r, t) (((m) & 0x7) << 28 | \ ((r) & 0xFFF) << 16 | \ @@ -150,6 +151,10 @@ /* Card read threshold */ #define SDMMC_SET_RD_THLD(v, x) (((v) & 0x1FFF) << 16 | (x)) +/* All ctrl reset bits */ +#define SDMMC_CTRL_ALL_RESET_FLAGS \ + (SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | SDMMC_CTRL_DMA_RESET) + /* Register access macros */ #define mci_readl(dev, reg) \ __raw_readl((dev)->regs + SDMMC_##reg) |