[U-Boot] MMC - Error detected in status(0x208100)!

Jagannadha Sutradharudu Teki jagannadha.sutradharudu-teki at xilinx.com
Wed Jan 30 13:17:55 CET 2013


Hi Jaehoon Chung,

> -----Original Message-----
> From: Jaehoon Chung [mailto:jh80.chung at samsung.com]
> Sent: 30 January 2013 17:44
> To: Jagannadha Sutradharudu Teki
> Cc: afleming at freescale.com; u-boot at lists.denx.de
> Subject: Re: [U-Boot] MMC - Error detected in status(0x208100)!
>
> On 01/30/2013 07:48 PM, Jagannadha Sutradharudu Teki wrote:
> > Hi Andy,
> >
> > The latest patch "mmc: Properly determine maximum supported bus
> width"
> > (sha1: 7798f6dbd5e1a3030ed81a81da5dfb57c3307cac) is causing some
> error
> > status issue on zynq platform with MMC Plus cards.
> >
> > Here the out what I get with inclusion of this patch on u-boot tree.
> > zynq-uboot> mmcinfo
> > Error detected in status(0x208100)!
> > Device: zynq_sdhci
> > Manufacturer ID: 1e
> > OEM: ffff
> > Name: MMC
> > Tran Speed: 52000000
> > Rd Block Len: 512
> > MMC version 4.0
> > High Capacity: No
> > Capacity: 1.9 GiB
> > Bus Width: 4-bit
> >
> > When I revert this path, I am unable to see the status error.
> > zynq-uboot> mmcinfo
> > Device: zynq_sdhci
> > Manufacturer ID: 1e
> > OEM: ffff
> > Name: MMC
> > Tran Speed: 52000000
> > Rd Block Len: 512
> > MMC version 4.0
> > High Capacity: No
> > Capacity: 1.9 GiB
> > Bus Width: 12-bit
> >
> > I think the above one is also a buggy as my controller is unable to support
> 12-bit bus width.?
> Could you check which bus_width support at your controller?
> I guess it is set to wrong buswidth.

Yes, this what the buggy message is for.
My controller supports only 1 and 4-bit.

Thanks,
Jagan.


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