From patchwork Mon Dec  3 12:19:45 2012
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Subject: [U-Boot,5/7] cm-t35: implement board specific card detect check
Date: Mon, 03 Dec 2012 02:19:45 -0000
From: Nikita Kiryanov <nikita@compulab.co.il>
X-Patchwork-Id: 203335
Message-Id: <1354537187-26744-6-git-send-email-nikita@compulab.co.il>
To: u-boot@lists.denx.de
Cc: Tom Rini <trini@ti.com>, Andy Fleming <afleming@freescale.com>

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(+)

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);