Part Number:66AK2G12
Tool/software: Linux
Hello,
I have a custom 66AK2G12 board where we are attempting to use the GPMC as the boot master for U-Boot and Linux. Unfortunately, after we designed the board, we found this post https://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/t/615259?tisearch=e2e-sitesearch&keymatch=k2g%20u-boot%20nand%20boot that says that NAND boot is not supported. The post mentioned a few points on which I would like some more information.
In the linked post, Rex Chang mentions that a U-Boot driver modification regarding ECC for the NAND may be the key to using the NAND device for boot, since the bootrom ECC scheme is different from the U-Boot driver. Looking at the Davinci driver ECC scheme vs the OMAP ECC Scheme, it looks like this may be a straightforward fix. Is there anyone who has attempted this and has any information they can share regarding how involved this may be?
Rex also mentioned an instability issue with the NAND in Linux. Can anyone provide some more information regarding this? We were hoping to use the NAND for the filesystem, but this seems to imply that the GMPC is useless in NAND configuration for the entire Linux SDK using this processor. If we cannot boot from NAND or use it reliably from Linux, what alternatives should we consider?
Thank you,
Jeff