davinci: MMC/SD Support for dm365 EVM

Patch adds support for MMC/SD in the DM365 EVM.
Pinmux for MMC/SD slot 1 on the DM365 EVM is also
configured.

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 9dda399..e62d1ab 100644 (file)
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -33,6 +33,7 @@
 #include <linux/i2c.h>
 #include <mach/serial.h>
 #include <mach/common.h>
+#include <mach/mmc.h>
 
 #define DM365_EVM_PHY_MASK             (0x2)
 #define DM365_EVM_MDIO_FREQUENCY       (2200000) /* PHY bus frequency */
@@ -57,6 +58,13 @@ static struct davinci_i2c_platform_data i2c_pdata = {
        .bus_delay      = 0     /* usec */,
 };
 
+static struct davinci_mmc_config dm365evm_mmc_config = {
+       .wires          = 4,
+       .max_freq       = 50000000,
+       .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
+       .version        = MMC_CTLR_VERSION_2,
+};
+
 static void dm365evm_emac_configure(void)
 {
        /*
@@ -93,6 +101,21 @@ static void dm365evm_emac_configure(void)
        davinci_cfg_reg(DM365_INT_EMAC_MISCPULSE);
 }
 
+static void dm365evm_mmc_configure(void)
+{
+       /*
+        * MMC/SD pins are multiplexed with GPIO and EMIF
+        * Further details are available at the DM365 ARM
+        * Subsystem Users Guide(sprufg5.pdf) pages 118, 128 - 131
+        */
+       davinci_cfg_reg(DM365_SD1_CLK);
+       davinci_cfg_reg(DM365_SD1_CMD);
+       davinci_cfg_reg(DM365_SD1_DATA3);
+       davinci_cfg_reg(DM365_SD1_DATA2);
+       davinci_cfg_reg(DM365_SD1_DATA1);
+       davinci_cfg_reg(DM365_SD1_DATA0);
+}
+
 static void __init evm_init_i2c(void)
 {
        davinci_init_i2c(&i2c_pdata);
@@ -116,6 +139,10 @@ static __init void dm365_evm_init(void)
        davinci_serial_init(&uart_config);
 
        dm365evm_emac_configure();
+       dm365evm_mmc_configure();
+
+       davinci_setup_mmc(0, &dm365evm_mmc_config);
+       davinci_setup_mmc(1, &dm365evm_mmc_config);
 
        soc_info->emac_pdata->phy_mask = DM365_EVM_PHY_MASK;
        soc_info->emac_pdata->mdio_max_freq = DM365_EVM_MDIO_FREQUENCY;