diff options
Diffstat (limited to 'drivers/mmc/omap_hsmmc.c')
| -rw-r--r-- | drivers/mmc/omap_hsmmc.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c index 5bb628d..b63ce56 100644 --- a/drivers/mmc/omap_hsmmc.c +++ b/drivers/mmc/omap_hsmmc.c @@ -38,6 +38,7 @@ #include <asm/arch/sys_proto.h> #endif #include <dm.h> +#include <asm/arch-omap3/mux.h> DECLARE_GLOBAL_DATA_PTR; @@ -102,6 +103,9 @@ static unsigned char mmc_board_init(struct mmc *mmc) t2_t *t2_base = (t2_t *)T2_BASE; struct prcm *prcm_base = (struct prcm *)PRCM_BASE; u32 pbias_lite; +#ifdef CONFIG_MMC_OMAP36XX_PINS + u32 wkup_ctrl = readl(OMAP34XX_CTRL_WKUP_CTRL); +#endif pbias_lite = readl(&t2_base->pbias_lite); pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0); @@ -109,12 +113,26 @@ static unsigned char mmc_board_init(struct mmc *mmc) /* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */ pbias_lite &= ~PBIASLITEVMODE0; #endif +#ifdef CONFIG_MMC_OMAP36XX_PINS + if (get_cpu_family() == CPU_OMAP36XX) { + /* Disable extended drain IO before changing PBIAS */ + wkup_ctrl &= ~OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ; + writel(wkup_ctrl, OMAP34XX_CTRL_WKUP_CTRL); + } +#endif writel(pbias_lite, &t2_base->pbias_lite); writel(pbias_lite | PBIASLITEPWRDNZ1 | PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0, &t2_base->pbias_lite); +#ifdef CONFIG_MMC_OMAP36XX_PINS + if (get_cpu_family() == CPU_OMAP36XX) + /* Enable extended drain IO after changing PBIAS */ + writel(wkup_ctrl | + OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ, + OMAP34XX_CTRL_WKUP_CTRL); +#endif writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL, &t2_base->devconf0); |