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mtd partition in not visible in kernel

ranjana kumari
Prodigy 110 points

 

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

  • 0
    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
    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 in reply to Mikhail Fandyushin
    Guru 31670 points

    Mikhail,

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

  • 0 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.