diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2014-01-13 19:49:31 +0400 |
|---|---|---|
| committer | Chris Ball <chris@printf.net> | 2014-02-23 19:41:21 +0400 |
| commit | 8d94b54d99ea968a9d188ca0e68793ebed601220 (patch) | |
| tree | fa21c1ab39f0955a29f50ca429e2ac43dad5534b /drivers/mmc/host/mmci.h | |
| parent | e7f3d22289e4307b3071cc18b1d8ecc6598c0be4 (diff) | |
| download | linux-8d94b54d99ea968a9d188ca0e68793ebed601220.tar.xz | |
mmc: mmci: Enable support for busy detection for ux500 variant
The ux500 variants have HW busy detection support, which is indicated
by the busy_detect flag. For these variants let's enable the
MMC_CAP_WAIT_WHILE_BUSY flag and add the support for it.
The mmc core will provide the RSP_BUSY command flag for those requests
we should care about busy detection. Regarding the max_busy_timeout,
the HW don't support busy detection timeouts so at this initial step
let's make it simple and set it to zero to indicate we are able to
support any timeout.
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Johan Rudholm <jrudholm@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
Diffstat (limited to 'drivers/mmc/host/mmci.h')
| -rw-r--r-- | drivers/mmc/host/mmci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index 168bc72f7a94..b008ace3e8ee 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -139,6 +139,7 @@ /* Extended status bits for the ST Micro variants */ #define MCI_ST_SDIOITMASK (1 << 22) #define MCI_ST_CEATAENDMASK (1 << 23) +#define MCI_ST_BUSYEND (1 << 24) #define MMCIMASK1 0x040 #define MMCIFIFOCNT 0x048 @@ -186,6 +187,7 @@ struct mmci_host { u32 pwr_reg; u32 clk_reg; u32 datactrl_reg; + u32 busy_status; bool vqmmc_enabled; struct mmci_platform_data *plat; struct variant_data *variant; |