diff options
Diffstat (limited to 'drivers/mmc/omap_hsmmc.c')
| -rw-r--r-- | drivers/mmc/omap_hsmmc.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c index 662790509..604164c1e 100644 --- a/drivers/mmc/omap_hsmmc.c +++ b/drivers/mmc/omap_hsmmc.c @@ -28,6 +28,7 @@ #include <part.h> #include <i2c.h> #include <twl4030.h> +#include <twl6030.h> #include <asm/io.h> #include <asm/arch/mmc_host_def.h> #include <asm/arch/sys_proto.h> @@ -38,7 +39,24 @@ static int mmc_read_data(hsmmc_t *mmc_base, char *buf, unsigned int size); static int mmc_write_data(hsmmc_t *mmc_base, const char *buf, unsigned int siz); static struct mmc hsmmc_dev[2]; -unsigned char mmc_board_init(hsmmc_t *mmc_base) + +#if defined(CONFIG_OMAP44XX) && defined(CONFIG_TWL6030_POWER) +unsigned char omap4_vmmc_pbias_config(struct mmc *mmc) +{ + u32 value = 0; + + value = readl(CONTROL_PBIASLITE); + value &= ~((1 << 22) | (1 << 26)); + writel(value, CONTROL_PBIASLITE); + /* set VMMC to 3V */ + twl6030_power_mmc_init(); + value = readl(CONTROL_PBIASLITE); + value |= (1 << 21) | (1 << 22) | (1 << 26); + writel(value, CONTROL_PBIASLITE); +} +#endif + +unsigned char mmc_board_init(struct mmc *mmc) { #if defined(CONFIG_TWL4030_POWER) twl4030_power_mmc_init(); @@ -67,7 +85,11 @@ unsigned char mmc_board_init(hsmmc_t *mmc_base) &prcm_base->iclken1_core); #endif -/* TODO add appropriate OMAP4 init - none currently necessary */ +#if defined(CONFIG_OMAP44XX) && defined(CONFIG_TWL6030_POWER) + /* PBIAS config needed for MMC1 only */ + if (mmc->block_dev.dev == 0) + omap4_vmmc_pbias_config(mmc); +#endif return 0; } @@ -108,7 +130,7 @@ static int mmc_init_setup(struct mmc *mmc) unsigned int dsor; ulong start; - mmc_board_init(mmc_base); + mmc_board_init(mmc); writel(readl(&mmc_base->sysconfig) | MMC_SOFTRESET, &mmc_base->sysconfig); |