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From: Jan Weitzel <j.weitzel@phytec.de>
To: barebox@lists.infradead.org
Subject: [PATCH] twl6030: Set WR_S for VMMC
Date: Tue, 28 May 2013 13:51:43 +0200	[thread overview]
Message-ID: <1369741903-24988-5-git-send-email-j.weitzel@phytec.de> (raw)

After Reset VMMC goes to default VSEL. This is not a clean power cycle for
some SD cards.
Set flag WR_S for VMMC to avoid going to default VSEL.

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
---
 drivers/mci/twl6030.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/mci/twl6030.c b/drivers/mci/twl6030.c
index 4a875bd..ad1043d 100644
--- a/drivers/mci/twl6030.c
+++ b/drivers/mci/twl6030.c
@@ -21,6 +21,7 @@ static int twl6030_mci_write(u8 address, u8 data)
 void twl6030_mci_power_init(void)
 {
 	twl6030_mci_write(TWL6030_PMCS_VMMC_CFG_VOLTAGE,
+			TWL6030_VMMC_WR_S | 
 			TWL6030_VMMC_VSEL_0 | TWL6030_VMMC_VSEL_2 |
 			TWL6030_VMMC_VSEL_4);
 	twl6030_mci_write(TWL6030_PMCS_VMMC_CFG_STATE,
-- 
1.7.0.4


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             reply	other threads:[~2013-05-28 11:52 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-28 11:51 Jan Weitzel [this message]
2013-05-30  9:22 ` Sascha Hauer

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