nand pmecc crash detected
Sascha Hauer
s.hauer at pengutronix.de
Mon Mar 3 02:58:01 EST 2014
On Fri, Feb 28, 2014 at 04:53:44PM +0100, Herve Codina wrote:
> Hi,
>
> I am using an sam5d35 and its pmecc nand ecc controller.
>
> In barebox, using similar atmel_nand.c the system crashes.
>
> The problem was a call to chip->ecc.hwctl from nand_write_subpage_hwecc
> (nand_base.c) when we write a sub page.
>
> chip->ecc.hwctl function is not set when we are using PMECC controller.
>
> As a workaround, i set NAND_NO_SUBPAGE_WRITE for PMECC controller in
> order to disable sub page access in nand_write_page.
>
> I think we can have the same problem in Linux. I do not performed
> subpage nand writes from Linux but i made the following patch according
> to my Barebox defect.
>
> Here after are my patches (same modification) for 1st my local Barebox
> and 2nd my local Linux :
Applied (for barebox ;), thanks
Sascha
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