The patch titled
sdhci: 8-bit data transfer width support
has been added to the -mm tree. Its filename is
sdhci-8-bit-data-transfer-width-support.patch
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See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: sdhci: 8-bit data transfer width support
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: <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
_
Patches currently in -mm which might be from kyungmin.park@xxxxxxxxxxx are
mmc-recognize-csd-structure.patch
mmc-recognize-csd-structure-fix.patch
s5pc110-sdhci-s3c-can-override-host-capabilities.patch
s5pc110-sdhci-s3c-support-on-s5pc110.patch
sdhci-add-no-hi-speed-bit-quirk-support.patch
sdhci-remove-useless-set_clock-check.patch
sdhci-dont-assign-mmc-caps-at-sdhci-directly.patch
sdhci-8-bit-data-transfer-width-support.patch
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