Hi all,
The PRCM (0x490022E8)register was overwritten by the MMC code
which made the other peripherals like USB etc to stop working.
The following patch fixes the modification of PRCM register by the MMC
code . This patch is tested here on the OMAP2430 SDP board.
File:
arch/arm/mach-omap2/board-sdp-hsmmc.c
Description: This patch fixes the unwanted PRCM register writes
Signed-off-by: Arun K S <arunks@xxxxxxxxxxxxxxxxxxxx>
Ack-by: Madhusudhan Chikkature Rajashekar" <madhu.cr@xxxxxx>
>From 1e7097cdd9831c39a2e402fdbaea80062d04fb2b Mon Sep 17 00:00:00 2001
From: Arun K S <arunks@xxxxxxxxxxxxxxxxxxxx>
Date: Mon, 28 Jan 2008 20:34:57 +0530
Subject: [PATCH] omap2430sdp_mmc_fix
---
arch/arm/mach-omap2/board-sdp-hsmmc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/board-sdp-hsmmc.c
b/arch/arm/mach-omap2/board-sdp-hsmmc.c
index 4bf8165..90e8def 100644
--- a/arch/arm/mach-omap2/board-sdp-hsmmc.c
+++ b/arch/arm/mach-omap2/board-sdp-hsmmc.c
@@ -176,7 +176,7 @@ static int sdp_mmc_set_power(struct device *dev, int slot,
int power_on,
case MMC_VDD_32_33:
vdd_sel = VSEL_3V;
if (cpu_is_omap24xx())
- devconf = (reg | (1 << 31));
+ devconf = (devconf | (1 << 31));
break;
case MMC_VDD_165_195:
vdd_sel = VSEL_18V;
--
1.5.3.7
Regards
Arun K S
On Tuesday 29 January 2008 14:24, you wrote:
> Hi Arun,
>
> ACK.
>
> That is a good catch. Could you please send the patch again with a
> signed-off line.
>
> Regards,
> Madhusudhan.
>
> > -----Original Message-----
> > From: linux-omap-owner@xxxxxxxxxxxxxxx
> > [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Arun K S
> > Sent: Monday, January 28, 2008 8:52 PM
> > To: linux-omap@xxxxxxxxxxxxxxx
> > Subject: Patch for MMC driver on SDP2430
> >
> > Hi,
> >
> > The PRCM (0x490022E8)register was overwritten by the MMC code
> > which made the
> > other peripherals like USB etc to stop working.
> > The following patch fixes the modification of PRCM register
> > by the MMC
> > code .
> > This patch is tested here on the OMAP2430 SDP board.
> > Following is the Patch against the latest GIT Sources of Linux-omap:
> >
> > ---
> > arch/arm/mach-omap2/board-sdp-hsmmc.c | 2 +-
> > 1 files changed, 1 insertions(+), 1 deletions(-)
> >
> > diff --git a/arch/arm/mach-omap2/board-sdp-hsmmc.c
> > b/arch/arm/mach-omap2/board-sdp-hsmmc.c
> > index 4bf8165..90e8def 100644
> > --- a/arch/arm/mach-omap2/board-sdp-hsmmc.c
> > +++ b/arch/arm/mach-omap2/board-sdp-hsmmc.c
> > @@ -176,7 +176,7 @@ static int sdp_mmc_set_power(struct
> > device *dev, int slot,
> > int power_on,
> > case MMC_VDD_32_33:
> > vdd_sel = VSEL_3V;
> > if (cpu_is_omap24xx())
> > - devconf = (reg | (1 << 31));
> > + devconf = (devconf | (1 << 31));
> > break;
> > case MMC_VDD_165_195:
> > vdd_sel = VSEL_18V;
> > --
> > 1.5.3.7
> > Signed-off-by: Arun K.S <arunks@xxxxxxxxxxxxxxxxxxxx>
> >
> >
> >
> > Thanks and Regards
> > Arun KS
> >
> >
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