No NAND access on AT91SAM9G20-EK
plagnioj at jcrosoft.com
Fri Feb 18 03:55:24 EST 2011
On 23:45 Thu 17 Feb , Marc Kleine-Budde wrote:
> On 02/17/2011 10:50 PM, Marc Kleine-Budde wrote:
> > Hello Jean-Christophe,
> > On 02/10/2011 12:48 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> >> which ecc did u use before?
> > I'm working on a at91sam9m10ek, using latest origin/next.
> > The ecc-mode is "hardcoded" to NAND_ECC_HW in
> > arch/arm/mach-at91/at91sam9g45_devices.c. I've got the same -74 problem
> > when reading from the nand.
> > Barebox fails to read the environment, even if barebox has written it.
> > After changing the ecc mode to soft the env can be read and written
> > without problems.
> > I ported the atmel nand driver from linux-2.6.37, which had no
> > significant differences.
> I just found in linux Kconfig:
> > config MTD_NAND_ATMEL_ECC_HW
> > bool "Hardware ECC"
> > depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
> The sam9g45 is not listed here....Maybe we should hardcode "soft" in
> barebox for the 9g45
I prefer we detect it as we could change it the kernel
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