This patch series will add PMECC support for atmel at91sam9x5ek in u-boot.
The NAND flash driver patch is ported from kernel patch. The main different from kernel patch is the modification about registers access part. in this version it via a register structure to access.
It is tested in atmel AT919G25EK board.
Changes since v2: adapt atmel nand driver to CONFIG_SYS_NAND_SELF_INIT. It use a new board_nand_init(void) function. Add README doc for Atmel PMECC. Add timeout for PMECC read hw status. refine code according to Andreas and Scott's comments.
Josh Wu (5): at91: atmel_nand: extract HWECC initialization code into one function: atmel_hw_nand_init_param(). at91: atmel_nand: remove unused variables. at91: atmel_nand: Update driver to support Programmable Multibit ECC controller at91: 9x5: change SMC config timing that both works for PMECC & non-PMECC. at91: 9x5: Enable PMECC for 5series ek board.
board/atmel/at91sam9x5ek/at91sam9x5ek.c | 12 +- doc/README.atmel_pmecc | 44 ++ drivers/mtd/nand/atmel_nand.c | 828 ++++++++++++++++++++++++++++--- drivers/mtd/nand/atmel_nand_ecc.h | 113 +++++ include/configs/at91sam9x5ek.h | 7 + include/nand.h | 2 +- 6 files changed, 938 insertions(+), 68 deletions(-) create mode 100644 doc/README.atmel_pmecc