omap: Beagle: no gpio_wp pin connection on xM

The omap3630 based BeagleBoard xM uses a MicroSD card slot with
no write protection.

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 1908b338e8d..55348412da7 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -272,7 +272,9 @@ static struct gpio_led gpio_leds[];
 static int beagle_twl_gpio_setup(struct device *dev,
                 unsigned gpio, unsigned ngpio)
 {
-        if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
+        if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
+                mmc[0].gpio_wp = -EINVAL;
+        } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
                 (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
                 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
                 mmc[0].gpio_wp = 23;