AnsweredAssumed Answered

porting nand driver in u-boot

Question asked by caohaifeng on Aug 13, 2013
Latest reply on Aug 18, 2013 by Kirill Brilliantov


Hi, all,

I am porting nand driver in u-boot. The nand chip is MT29F2G16ABAE,it conneted with EIM_DA[15..0] of imx53. I have done these works:

1. initial I/O in board-sepcial file-------add setup_nfc() in <uboot>/../mx53_xx.c

2. add nand flash info in type_7[] in annd_device_info.c

    add nand driver setup in include/configs/mx53_xx.h,for example, #define CONFIG_SYS_NAND_BASE 0x40000000 etc.

    add #define CONFIG_FSL_ENV_ IN_MMC

 

when the board power up, the error show at the console info is

NAND: No NAND device found!!!

0 MiB

 

I found that someone say  we can add "printf" in drivers under u-boot to debug it. But it ouput nothing to me. And I tried "printk", there is no more infomation to output . I don't know how to debug it.

 

Can anyone help me?

 

Regards,

 

haifeng

 

 

 

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