From a5d439c2d3a55df2718eae19fb128e498f4bef87 Mon Sep 17 00:00:00 2001 From: Balaji T K Date: Thu, 6 Jun 2013 05:04:32 +0000 Subject: mmc: omap_hsmmc: Update pbias programming Update pbias programming sequence for OMAP5 ES2.0/DRA7 Signed-off-by: Balaji T K Signed-off-by: Lokesh Vutla --- drivers/mmc/omap_hsmmc.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) (limited to '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 @@ static void omap5_pbias_config(struct mmc *mmc) 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 -- cgit v1.1