davinci: Add MMC/SD support for da850/omap-l138

There are two instances of MMC/SD on da850/omap-l138.
Connector for the first instance is available on the
EVM. This patch adds support for this instance.

This patch also adds support for card detect and write
protect switches on da850/omap-l138 EVM.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 094eb8ed8e76..58ad5b66fd60 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -412,3 +412,39 @@ int __init da8xx_register_lcdc(void)
 {
         return platform_device_register(&da850_lcdc_device);
 }
+
+static struct resource da8xx_mmcsd0_resources[] = {
+        {               /* registers */
+                .start  = DA8XX_MMCSD0_BASE,
+                .end    = DA8XX_MMCSD0_BASE + SZ_4K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        {               /* interrupt */
+                .start  = IRQ_DA8XX_MMCSDINT0,
+                .end    = IRQ_DA8XX_MMCSDINT0,
+                .flags  = IORESOURCE_IRQ,
+        },
+        {               /* DMA RX */
+                .start  = EDMA_CTLR_CHAN(0, 16),
+                .end    = EDMA_CTLR_CHAN(0, 16),
+                .flags  = IORESOURCE_DMA,
+        },
+        {               /* DMA TX */
+                .start  = EDMA_CTLR_CHAN(0, 17),
+                .end    = EDMA_CTLR_CHAN(0, 17),
+                .flags  = IORESOURCE_DMA,
+        },
+};
+
+static struct platform_device da8xx_mmcsd0_device = {
+        .name           = "davinci_mmc",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(da8xx_mmcsd0_resources),
+        .resource       = da8xx_mmcsd0_resources,
+};
+
+int __init da8xx_register_mmcsd0(struct davinci_mmc_config *config)
+{
+        da8xx_mmcsd0_device.dev.platform_data = config;
+        return platform_device_register(&da8xx_mmcsd0_device);
+}