cm-t35: implement board specific card detect check

Implement a card detection check for cm-t35.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>

diff --git a/board/cm_t35/cm_t35.c b/board/cm_t35/cm_t35.c
index 89e0fd30a8f4d174f1e4c266114afc950c70d483..dfd91e78c8c1d8359d7a4bd5351b1327c747e40a 100644 (file)
--- a/board/cm_t35/cm_t35.c
+++ b/board/cm_t35/cm_t35.c
@@ -33,6 +33,7 @@
 #include <net.h>
 #include <i2c.h>
 #include <usb.h>
+#include <mmc.h>
 #include <twl4030.h>
 #include <linux/compiler.h>
 
@@ -377,6 +378,16 @@ void set_muxconf_regs(void)
 }
 
 #ifdef CONFIG_GENERIC_MMC
+int board_mmc_getcd(struct mmc *mmc)
+{
+       u8 val;
+
+       if (twl4030_i2c_read_u8(TWL4030_CHIP_GPIO, &val, TWL4030_BASEADD_GPIO))
+               return -1;
+
+       return !(val & 1);
+}
+
 int board_mmc_init(bd_t *bis)
 {
        return omap_mmc_init(0, 0, 0, -1);