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[U-Boot,5/7] cm-t35: implement board specific card detect check

Message ID 1354537187-26744-6-git-send-email-nikita@compulab.co.il
State Accepted
Delegated to: Tom Rini
Headers show

Commit Message

Nikita Kiryanov Dec. 3, 2012, 12:19 p.m. UTC 
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>
---
 board/cm_t35/cm_t35.c |   11 +++++++++++
 1 file changed, 11 insertions(+)
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Patch

diff --git a/board/cm_t35/cm_t35.c b/board/cm_t35/cm_t35.c
index 87a18c0..50c0990 100644
--- a/board/cm_t35/cm_t35.c
+++ b/board/cm_t35/cm_t35.c
@@ -32,6 +32,7 @@ 
 #include <netdev.h>
 #include <net.h>
 #include <i2c.h>
+#include <mmc.h>
 #include <twl4030.h>
 #include <linux/compiler.h>
 
@@ -344,6 +345,16 @@  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);