mtd partition in not visible in kernel

ranjana kumari

Linux-2.6.32.17-davinci1 uImage is not displaying mtd nand partitions ...what can be the reason...what and where i n the kernel i need to do modification to see the partitions for bootlader, kernel and filesystem...

please suggest

over 12 years ago

0 Renjith Thomas over 12 years ago

Guru 31670 points

Ranjana,

See whether the NAND is detected in the kernel. Also whether NAND drivers are enabled in the kernel config. Please share more logs in any case.

0 Mikhail Fandyushin over 12 years ago

Prodigy 130 points

I have same problem when I closed EMIF SEL pin whith logic 1 for EMIF testing. Interestingly, that ubl detected NAND, but kernel didnt detect mtd blocks (root# cat /proc/mtd).

0 Renjith Thomas over 12 years ago in reply to Mikhail Fandyushin

Guru 31670 points

Mikhail,

Which is the board that you are using? Please share the kernel logs.

0 Mikhail Fandyushin over 12 years ago in reply to Renjith Thomas

Prodigy 130 points

Thomas,

I use Spectrum Digital dm368 board. I cant show logs, cuz this time all working fine. I closed EM_SEL pin with vcc3.3 for EMIF testing and forgot about this. Then I tried to flash bootloaders, u-boot, kernel and fs. I had no problems with bl's, u-boot and kernel. I had problems only with fs, cuz kernel didnt detect any mtd blocks. I used cat /proc/mtd . After, I unlocked EM_SEL and kernel detect mtd blocks without any problems.

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mtd partition in not visible in kernel