HZ value change groundings (Was: jitterless touchscreen input in .34) + FCSE question

Lars-Peter Clausen lars at metafoo.de
Mon Oct 25 22:35:09 CEST 2010


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Gennady Kupava wrote:
> В Пнд, 25/10/2010 в 18:24 +0300, Vasily Khoruzhick пишет:
>> On Monday 25 October 2010 18:13:13 Martix wrote:
>>
>>> I read on #openmoko-cdevel few months ago that hardware NAND ECC is
>>> buggy. 
> 
> Here is archive of openmoko-cdevel:
> 
>> What changed? Was it only rumor or SW bug?
>>
>> It's buggy on some s3c2410 CPUs, it's bug free on s3c2442, but ECC layout is a 
>> bit weird :)
> 
> But ECC calculations for HW ECC and SW ECC are same? In-kernel
> implementation is ok? So... need to investigate how to turn it on.
> 
> Gennady.
> 
> 

Pretty simple: boot with hardware_ecc=1

But I think the ecc layout is different between HW and SW ECC, so you'll probably
need to turn on HW ECC in u-boot as well.

- - Lars
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