[U-Boot] at91sam9g45ekes SDHC/MMC

[Henry Súcart]

Hi Ulf,

Thanks for the reply. I applied your patches but I still can't get it to
read the SD card

Without the SD card:
U-Boot> mmc init 0
mmc: command 55 failed (status: 0x0c100025)
mmc: command 1 failed (status: 0x0c100025)
No MMC card found

With the SD card:
U-Boot> mmc init 0
mmc: command 1 failed (status: 0x0c100025)
No MMC card found



I'm not sure what's going on.
On Tue, Apr 6, 2010 at 5:57 AM, Ulf Samuelsson <ulf.samuelsson at atmel.com>wrote:

> Henry Súcart skrev:
> > Hi,
> >
> > I've been trying to get an SD card working with an at91sam9g45ek-es
> board. I
> > read a couple of threads in the archive and ended up doing this:
> >
>
> I have booted the AT91SAM9G45EKES (Actually the AT91SAM9M10EKES,
> but it is almost the same) from SD-Card for the last month.
> The patchset for 2009.11 is available for testing in my private git
> branch on www.openembedded.org: origin/ulf/linux-2.6.30-20100317
>
> I came to the conclusion that the atmel MCI driver (written for the big
> endian AVR32) has significant byte sex problems.
>
> BR
> Ulf Samuelsson.
>
>
> > I applied these patches:
> >
> > http://lists.denx.de/pipermail/u-boot/2009-August/059595.html
> > http://lists.denx.de/pipermail/u-boot/2009-September/060053.html
> > http://lists.denx.de/pipermail/u-boot/2009-September/060243.html
> >
> > Added these #define's to include/configs/at91sam9m10g45ek.h:
> >
> > #define CONFIG_CMD_EXT2   1
> > #define CONFIG_CMD_FAT     1
> > #define CONFIG_CMD_MMC   1
> > #define CONFIG_MMC            1
> > #define CONFIG_ATMEL_MCI  1
> >
> > Finally, I added this to the board init function:
> >
> > #ifdef CONFIG_ATMEL_MCI
> > at91_mci0_hw_init(0, 4);
> > #endif
> >
> > When I try it out this is what I get:
> > U-Boot> mmc init 0
> > mmc: clock 150000 too low; setting CLKDIV to 255
> > mmc: command 1 failed (status: 0x0c100025)
> > No MMC card found
> >
> > Am I doing something wrong? Any help is appreciated,
> >
> > Henry
> >
> >
> >
> > ------------------------------------------------------------------------
> >
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>
>