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, 33 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/include/mach/mmc.h b/arch/arm/mach-davinci/include/mach/mmc.h
new file mode 100644
index 000000000000..5a85e24f3673
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/mmc.h
@@ -0,0 +1,33 @@
+/*
+ *  Board-specific MMC configuration
+ */
+
+#ifndef _DAVINCI_MMC_H
+#define _DAVINCI_MMC_H
+
+#include <linux/types.h>
+#include <linux/mmc/host.h>
+
+struct davinci_mmc_config {
+        /* get_cd()/get_wp() may sleep */
+        int     (*get_cd)(int module);
+        int     (*get_ro)(int module);
+        /* wires == 0 is equivalent to wires == 4 (4-bit parallel) */
+        u8      wires;
+
+        u32     max_freq;
+
+        /* any additional host capabilities: OR'd in to mmc->f_caps */
+        u32     caps;
+
+        /* Version of the MMC/SD controller */
+        u8      version;
+};
+void davinci_setup_mmc(int module, struct davinci_mmc_config *config);
+
+enum {
+        MMC_CTLR_VERSION_1 = 0, /* DM644x and DM355 */
+        MMC_CTLR_VERSION_2,     /* DA830 */
+};
+
+#endif