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omap3: mmc: add 1.8v bias setting for MMC1

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Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
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Albert ARIBAUD \(3ADEV\) 2015-01-16 09:09:50 +01:00 committed by Tom Rini
parent d215b3e5e3
commit 5bfdd1fc97
2 changed files with 5 additions and 0 deletions
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1
arch/arm/include/asm/arch-omap3/mmc_host_def.h
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@ -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)

4
drivers/mmc/omap_hsmmc.c
View file

@ -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 |