Dear TI,
I am porting 8-bit Samsung Nand flash to DM8148 EVM board now.
The Nand flash is Samsung K9G8G08U0M.
Type:MLC
Size: 1GiB size,
Page size: (2K + 64)B
bus width: 8-bit
My U-boot version: u-boot-2010.06-psp04.01.00.06.patch1
Before I flash u-boot 1st stage and 2nd stage to nand, I already set CS0BW and BTMODE switch in right way.
My questions are :
1) For 8-bit nand flash, should I set "#define GPMC_NAND_ECC_LP_x8_LAYOUT 1" instead of "#define GPMC_NAND_ECC_LP_x16_LAYOUT 1" in ti8148_evm.h?
2) If I define GPMC_NAND_ECC_LP_x8_LAYOUT 1, there is an compiler error means can't find "GPMC_NAND_HW_ECC_LAYOUT_KERNEL" , is it a bug? How can I work around it?
3) Actually I already flashed the 1st stage U-boot into the nand flash and it can work. But there are so many uncorrected ECC errors when loading 2nd stage "u-boot.bin". Since I have to use HW BCH8 ECC scheme for this MLC nand, could I write 2nd stage u-boot with BCH8 ECC (It seems different to DM814x_AM387x_PSP_U-Boot.pdf P.22 describes)?
Thanks,
Jeffrey
