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

[Jaehoon Chung]

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.

Best Regards,
Jaehoon Chung
> 
> Request for any inputs.
> 
> Thanks,
> Jagan.
> 
> 
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