Hi Ilya,
On 10/20/2011 05:23 PM, Ilya Yanok wrote:
Hi Simon,
On 20.10.2011 16:00, Simon Schwarz wrote:
Use software ECC for the SPL build if support for software ECC in
SPL is
enabled.
I'am curious: Is there a special reason for having software ecc in SPL?
Well, yes. On OMAP2+ ECC mode defaults to software (incompatible with HW mode; 256 vs 512 bytes block size) both in U-Boot and Linux (U-Boot has command to change it while in Linux you have to recompile the kernel).
So we need software ecc to read images written from Linux.
ok. Agreed.
Another thing just poped into my mind, ATM I have a DMA patch for devkit8000 on the ML: http://article.gmane.org/gmane.comp.boot-loaders.u-boot/109744 http://article.gmane.org/gmane.comp.boot-loaders.u-boot/112661
It speeds up the process of copying the u-boot/linux image. ATM this is in combination with HW ecc and I doubt that it will work seamlessly with SW-ecc, yet. However IMHO DMA in combination with SW-ecc could be nearly as fast as using HW-ecc.
So maybe an adaption is worth a try?
Regards Simon