From: Stefan Roese [mailto:sr@denx.de]
Patch a7e36fc9 (mtd: nand: omap: remove unused #defines from common omap_gpmc.h) removed some MTD related defines. Including GPMC_NAND_ECC_LP_x8_LAYOUT. But this define is also needed for the memory controller configuration (only the x8 defines are needed, the x16 defines are the default). Without it the NAND subsystem is not configured correctly and booting into U-Boot does not work.
The root cause of this problem is in .. arch/arm/cpu/armv7/omap3/mem.c #if defined(GPMC_NAND_ECC_SP_x8_LAYOUT) || defined(GPMC_NAND_ECC_LP_x8_LAYOUT) where based on GPMC_NAND_ECC_LP_x8_LAYOUT, different controller configuration is selected. Unless you need a urgent fix,
- I would suggest to use [1] instead. I'll try to get a cleaner version of [1] incorporating other comments from Scott, soon.
- Alternatively, you can also look at [2], which is more robust but was still under discussion.
[1] http://lists.denx.de/pipermail/u-boot/2013-December/168507.html
[2] http://lists.denx.de/pipermail/u-boot/2013-September/163882.html http://lists.denx.de/pipermail/u-boot/2013-September/163879.html
with regards, pekon