From 5bfdd1fc971126e4617ac1388b809a83b6ffa0e5 Mon Sep 17 00:00:00 2001
From: "Albert ARIBAUD \\(3ADEV\\)" <albert.aribaud@3adev.fr>
Date: Fri, 16 Jan 2015 09:09:50 +0100
Subject: [PATCH] omap3: mmc: add 1.8v bias setting for MMC1
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
---
arch/arm/include/asm/arch-omap3/mmc_host_def.h | 1 +
drivers/mmc/omap_hsmmc.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/arch/arm/include/asm/arch-omap3/mmc_host_def.h b/arch/arm/include/asm/arch-omap3/mmc_host_def.h
index 0ba621a1b82..9f2896c4b91 100644
--- a/arch/arm/include/asm/arch-omap3/mmc_host_def.h
+++ b/arch/arm/include/asm/arch-omap3/mmc_host_def.h
@@ -51,6 +51,7 @@ typedef struct t2 {
#define PBIASLITEPWRDNZ0 (1 << 1)
#define PBIASSPEEDCTRL0 (1 << 2)
#define PBIASLITEPWRDNZ1 (1 << 9)
+#define PBIASLITEVMODE0 (1 << 0)
#define CTLPROGIO1SPEEDCTRL (1 << 20)
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index c880cedb0ad..dc725cb5b0d 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -134,6 +134,10 @@ static unsigned char mmc_board_init(struct mmc *mmc)
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 |
--
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