[U-Boot] [PATCH 1/3] fsl_esdhc: Always stop clock before changing frequency
Kumar Gala
galak at kernel.crashing.org
Fri Mar 19 16:38:13 CET 2010
We need to stop the clocks on 83xx/85xx as well as imx. No need to make
this code conditional to just imx.
Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
---
drivers/mmc/fsl_esdhc.c | 11 +++--------
include/fsl_esdhc.h | 3 +--
2 files changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index e665b5e..85354e8 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2007, Freescale Semiconductor, Inc
+ * Copyright 2007,2010 Freescale Semiconductor, Inc
* Andy Fleming
*
* Based vaguely on the pxa mmc code:
@@ -265,18 +265,13 @@ void set_sysctl(struct mmc *mmc, uint clock)
clk = (pre_div << 8) | (div << 4);
- /* On imx the clock must be stopped before changing frequency */
- if (cfg->clk_enable)
- esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN);
+ esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN);
esdhc_clrsetbits32(®s->sysctl, SYSCTL_CLOCK_MASK, clk);
udelay(10000);
- clk = SYSCTL_PEREN;
- /* On imx systems the clock must be explicitely enabled */
- if (cfg->clk_enable)
- clk |= SYSCTL_CKEN;
+ clk = SYSCTL_PEREN | SYSCTL_CKEN;
esdhc_setbits32(®s->sysctl, clk);
}
diff --git a/include/fsl_esdhc.h b/include/fsl_esdhc.h
index 01b7dec..57a08cd 100644
--- a/include/fsl_esdhc.h
+++ b/include/fsl_esdhc.h
@@ -2,7 +2,7 @@
* FSL SD/MMC Defines
*-------------------------------------------------------------------
*
- * Copyright 2007-2008, Freescale Semiconductor, Inc
+ * Copyright 2007-2008,2010 Freescale Semiconductor, Inc
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@@ -148,7 +148,6 @@
struct fsl_esdhc_cfg {
u32 esdhc_base;
u32 no_snoop;
- u32 clk_enable;
};
/* Select the correct accessors depending on endianess */
--
1.6.0.6
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