mmc: mxs-mmc: add mmc host driver for i.MX23/28

This adds the mmc host driver for Freescale MXS-based SoC i.MX23/28.
The driver calls into mxs-dma via generic dmaengine api for both pio
and data transfer.

Thanks Chris Ball for the indentation patch.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 54b7bd54a52a..398d7d54c52a 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -319,6 +319,15 @@ config MMC_MXC
 
           If unsure, say N.
 
+config MMC_MXS
+        tristate "Freescale MXS Multimedia Card Interface support"
+        depends on ARCH_MXS && MXS_DMA
+        help
+          This selects the Freescale SSP MMC controller found on MXS based
+          platforms like mx23/28.
+
+          If unsure, say N.
+
 config MMC_TIFM_SD
         tristate "TI Flash Media MMC/SD Interface support  (EXPERIMENTAL)"
         depends on EXPERIMENTAL && PCI