diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2013-01-21 19:02:28 +0800 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-02-24 14:37:03 -0500 |
| commit | af51079e68d4759e458b0592df5d1fab373c43ae (patch) | |
| tree | 937bb9166c549ab3ebfbdb19c8dc63e76f904584 /include | |
| parent | 7bc088d38f92f58df97e1cd9a8430331ee5491bb (diff) | |
| download | linux-af51079e68d4759e458b0592df5d1fab373c43ae.tar.bz2 | |
mmc: sdhci-esdhc-imx: support 8bit mode
The i.MX esdhc has a nonstandard bit layout for the SDHCI_HOST_CONTROL
register. To support 8bit bus width on i.MX populate the platform_bus_width
callback. This is tested on an i.MX25, but should according to the datasheets
work on the other i.MX using this hardware aswell. The i.MX6, while having
a SDHCI_SPEC_300 controller, still uses the same nonstandard register layout.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/platform_data/mmc-esdhc-imx.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/platform_data/mmc-esdhc-imx.h b/include/linux/platform_data/mmc-esdhc-imx.h index aaf97481f413..b4a0521ce411 100644 --- a/include/linux/platform_data/mmc-esdhc-imx.h +++ b/include/linux/platform_data/mmc-esdhc-imx.h @@ -39,5 +39,6 @@ struct esdhc_platform_data { unsigned int cd_gpio; enum wp_types wp_type; enum cd_types cd_type; + int max_bus_width; }; #endif /* __ASM_ARCH_IMX_ESDHC_H */ |