From: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> Some host controllers such as s5pc110 support the WIDE8 feature. Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> Cc: Grant Likely <grant.likely@xxxxxxxxxxxx> Cc: <linux-mmc@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/mmc/host/sdhci.c | 5 +++++ drivers/mmc/host/sdhci.h | 1 + 2 files changed, 6 insertions(+) diff -puN drivers/mmc/host/sdhci.c~sdhci-8-bit-data-transfer-width-support drivers/mmc/host/sdhci.c --- a/drivers/mmc/host/sdhci.c~sdhci-8-bit-data-transfer-width-support +++ a/drivers/mmc/host/sdhci.c @@ -1159,6 +1159,11 @@ static void sdhci_set_ios(struct mmc_hos ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); + if (ios->bus_width == MMC_BUS_WIDTH_8) + ctrl |= SDHCI_CTRL_8BITBUS; + else + ctrl &= ~SDHCI_CTRL_8BITBUS; + if (ios->bus_width == MMC_BUS_WIDTH_4) ctrl |= SDHCI_CTRL_4BITBUS; else diff -puN drivers/mmc/host/sdhci.h~sdhci-8-bit-data-transfer-width-support drivers/mmc/host/sdhci.h --- a/drivers/mmc/host/sdhci.h~sdhci-8-bit-data-transfer-width-support +++ a/drivers/mmc/host/sdhci.h @@ -72,6 +72,7 @@ #define SDHCI_CTRL_ADMA1 0x08 #define SDHCI_CTRL_ADMA32 0x10 #define SDHCI_CTRL_ADMA64 0x18 +#define SDHCI_CTRL_8BITBUS 0x20 #define SDHCI_POWER_CONTROL 0x29 #define SDHCI_POWER_ON 0x01 _ -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
