davinci: MMC platform support

Add SoC and platform-specific data and init for MMC driver.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index b2e7f9c63bc5..9c3ce311d5d7 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -44,6 +44,7 @@
 #include <mach/mux.h>
 #include <mach/psc.h>
 #include <mach/nand.h>
+#include <mach/mmc.h>
 
 #define DM644X_EVM_PHY_MASK             (0x2)
 #define DM644X_EVM_MDIO_FREQUENCY       (2200000) /* PHY bus frequency */
@@ -545,6 +546,27 @@ static int dm6444evm_msp430_get_pins(void)
         return (buf[3] << 8) | buf[2];
 }
 
+static int dm6444evm_mmc_get_cd(int module)
+{
+        int status = dm6444evm_msp430_get_pins();
+
+        return (status < 0) ? status : !(status & BIT(1));
+}
+
+static int dm6444evm_mmc_get_ro(int module)
+{
+        int status = dm6444evm_msp430_get_pins();
+
+        return (status < 0) ? status : status & BIT(6 + 8);
+}
+
+static struct davinci_mmc_config dm6446evm_mmc_config = {
+        .get_cd         = dm6444evm_mmc_get_cd,
+        .get_ro         = dm6444evm_mmc_get_ro,
+        .wires          = 4,
+        .version        = MMC_CTLR_VERSION_1
+};
+
 static struct i2c_board_info __initdata i2c_info[] =  {
         {
                 I2C_BOARD_INFO("dm6446evm_msp", 0x23),
@@ -671,6 +693,8 @@ static __init void davinci_evm_init(void)
                              ARRAY_SIZE(davinci_evm_devices));
         evm_init_i2c();
 
+        davinci_setup_mmc(0, &dm6446evm_mmc_config);
+
         davinci_serial_init(&uart_config);
 
         /* Register the fixup for PHY on DaVinci */