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authorBalaji T K <balajitk@ti.com>2013-06-06 05:04:32 +0000
committerTom Rini <trini@ti.com>2013-06-10 08:43:10 -0400
commita5d439c2d3a55df2718eae19fb128e498f4bef87 (patch)
treec2e13c976a6eba8799783d910ca0589306efe9f0 /drivers/mmc/omap_hsmmc.c
parent81ede187c3e4233c08ab30900e86f5e0ec2c4624 (diff)
downloadtalos-obmc-uboot-a5d439c2d3a55df2718eae19fb128e498f4bef87.tar.gz
talos-obmc-uboot-a5d439c2d3a55df2718eae19fb128e498f4bef87.zip
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/omap_hsmmc.c')
-rw-r--r--drivers/mmc/omap_hsmmc.c20
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index afdfa886e8..975b2c5ba4 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
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