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| author | Yusuke Goda <yusuke.goda.sx@renesas.com> | 2010-08-30 11:50:19 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2010-10-29 00:29:16 +0200 |
| commit | f1334fb3c3006ba109886158c0ad79512f928bc1 (patch) | |
| tree | 99038a92a9e1bf77e96129473614fad4d99a0d33 /include/linux/mfd | |
| parent | 68accd7370a90b899ea6563ba9032e5a102ec1b5 (diff) | |
| download | kernel_samsung_smdk4412-f1334fb3c3006ba109886158c0ad79512f928bc1.zip kernel_samsung_smdk4412-f1334fb3c3006ba109886158c0ad79512f928bc1.tar.gz kernel_samsung_smdk4412-f1334fb3c3006ba109886158c0ad79512f928bc1.tar.bz2 | |
mmc: Allow 2 byte requests in 4-bit mode for tmio_mmc
Adjust the tmio_mmc block size check to accept 2-byte requests in 4-bit
mode if the hardware supports it.
Tested with the SDHI hardware block included in sh7724.
Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Acked-by: Magnus Damm <damm@opensource.se>
Tested-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include/linux/mfd')
| -rw-r--r-- | include/linux/mfd/tmio.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h index 24c43bb..085f041 100644 --- a/include/linux/mfd/tmio.h +++ b/include/linux/mfd/tmio.h @@ -52,6 +52,11 @@ /* tmio MMC platform flags */ #define TMIO_MMC_WRPROTECT_DISABLE (1 << 0) +/* + * Some controllers can support a 2-byte block size when the bus width + * is configured in 4-bit mode. + */ +#define TMIO_MMC_BLKSZ_2BYTES (1 << 1) int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base); int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base); |