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| author | Balaji T K <balajitk@ti.com> | 2013-06-06 05:04:32 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-06-10 08:43:10 -0400 |
| commit | a5d439c2d3a55df2718eae19fb128e498f4bef87 (patch) | |
| tree | c2e13c976a6eba8799783d910ca0589306efe9f0 /drivers/mmc | |
| parent | 81ede187c3e4233c08ab30900e86f5e0ec2c4624 (diff) | |
| download | u-boot-imx-a5d439c2d3a55df2718eae19fb128e498f4bef87.zip u-boot-imx-a5d439c2d3a55df2718eae19fb128e498f4bef87.tar.gz u-boot-imx-a5d439c2d3a55df2718eae19fb128e498f4bef87.tar.bz2 | |
mmc: omap_hsmmc: Update pbias programming
Update pbias programming sequence for OMAP5 ES2.0/DRA7
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/omap_hsmmc.c | 20 |
1 files changed, 9 insertions, 11 deletions
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 |