dm355 cannot find nand in kernel, but can boot by RBL and operate in uboot.

YJ Liu

Expert 1675 points

UBL is version 1.5, uboot is 1.3.4 ,kernel is montavista 2.6.10.

now dm355 boots ok, and i can use nand command in u-boot, but kernel cannot find the nand device:

///////

nand_davinci nand_davinci.0: Using 4-bit hardware ECC

NAND:nand_maf_id=0x0,nand_dev_id=0x0

No NAND device found!!!

nand_davinci nand_davinci.0: no nand device detected

......

sometimes it found maf_id and dev_id are the same :0xec, actually device id is 0xF1. How could this happen?

my nand part is K9F1G08U0C-PCB0.

over 15 years ago

0 YJ Liu over 15 years ago

Expert 1675 points

BTW, i use DM355-IPNC Kernel

0 YJ Liu over 15 years ago in reply to YJ Liu

Expert 1675 points

i have figure it out. just replace the new file with the old one.

0 Anshuman Saxena over 15 years ago in reply to YJ Liu

TI__Mastermind 19985 points

Hi,

Do you think we can mark this post as closed as you have figured out the answer? it might be useful for others, if you could point the exact details about the filename that need to be replaced.

Regards,

Anshuman

PS: please mark this post as verified, if you think it has answered your question. Thanks.

0 YJ Liu over 15 years ago in reply to Anshuman Saxena

Expert 1675 points

well , the IPNC use a nand chip K9F5608, which is not support by Dm355, So APPRO select CE as a GPIO to access the nand flash.( you can search my post)

That means in nand_davinci.c , APPRO have modified the source,especially the function HW_CONTROL().

since my part is K9F1G08, which is support by dm355, so I have move off the code APPRO modified. replace APPRO's nand_davinci.c with EVM's nand_davinci.c is the most quick way.

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dm355 cannot find nand in kernel, but can boot by RBL and operate in uboot.