omap3: mmc: add 1.8v bias setting for MMC1

Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index c880ced..dc725cb 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -134,6 +134,10 @@
 
 	pbias_lite = readl(&t2_base->pbias_lite);
 	pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0);
+#ifdef CONFIG_TARGET_OMAP3_CAIRO
+	/* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */
+	pbias_lite &= ~PBIASLITEVMODE0;
+#endif
 	writel(pbias_lite, &t2_base->pbias_lite);
 
 	writel(pbias_lite | PBIASLITEPWRDNZ1 |