commit 8372baff99704c5e5e92a5ff39ac12ee78ece4b5
author Balaji T K <balajitk@ti.com> Thu Jun 06 05:04:32 2013 +0000
committer Tom Rini <trini@ti.com> Mon Jun 10 08:43:10 2013 -0400
tree c2e13c976a6eba8799783d910ca0589306efe9f0
parent cdb96193fc87be8d500056d7e11536302f259725

mmc: omap_hsmmc: Update pbias programming

Update pbias programming sequence for OMAP5 ES2.0/DRA7

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

drivers/mmc/omap_hsmmc.c

diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index afdfa88..975b2c5 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -113,23 +113,21 @@
 	u32 value = 0;
 
 	value = readl((*ctrl)->control_pbias);
-	value &= ~(SDCARD_PWRDNZ | SDCARD_BIAS_PWRDNZ);
-	value |= SDCARD_BIAS_HIZ_MODE;
+	value &= ~SDCARD_PWRDNZ;
+	writel(value, (*ctrl)->control_pbias);
+	udelay(10); /* wait 10 us */
+	value &= ~SDCARD_BIAS_PWRDNZ;
 	writel(value, (*ctrl)->control_pbias);
 
 	palmas_mmc1_poweron_ldo();
 
 	value = readl((*ctrl)->control_pbias);
-	value &= ~SDCARD_BIAS_HIZ_MODE;
-	value |= SDCARD_PBIASLITE_VMODE | SDCARD_PWRDNZ | SDCARD_BIAS_PWRDNZ;
+	value |= SDCARD_BIAS_PWRDNZ;
 	writel(value, (*ctrl)->control_pbias);
-
-	value = readl((*ctrl)->control_pbias);
-	if (value & (1 << 23)) {
-		value &= ~(SDCARD_PWRDNZ | SDCARD_BIAS_PWRDNZ);
-		value |= SDCARD_BIAS_HIZ_MODE;
-		writel(value, (*ctrl)->control_pbias);
-	}
+	udelay(150); /* wait 150 us */
+	value |= SDCARD_PWRDNZ;
+	writel(value, (*ctrl)->control_pbias);
+	udelay(150); /* wait 150 us */
 }
 #endif