Failed to create MTD partitions

Jupiter jupiter.hce at gmail.com
Fri May 28 04:00:52 PDT 2021


Hello,

I am using MTD in kernel 4.19, I was able to run kernel boot to create
MTD partitions when I used NAND Winbond W29N02GV:

[    7.961966] nand: device found, Manufacturer ID: 0xef, Chip ID: 0xda
[    7.968545] nand: Winbond W29N02GV
[    7.972267] nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB siz
e: 64
[    7.986814] Bad block table found at page 131008, version 0x01
[    7.994254] Bad block table found at page 130944, version 0x01
[    8.002152] 3 cmdlinepart partitions found on MTD device gpmi-nand
[    8.008479] Creating 3 MTD partitions on "gpmi-nand":
....................

Since we could not get Winbond W29N02GV supply anymore, we changed
Samsung NAND, Both are 3.3V 2Gib devices with the same memory
organization (2k pages +
64b OOB / 128k blocks) so these two parts should be equivalent in
terms of internal organization, but it failed to create MTD partitions
in kernel boot:

[    8.137591] nand: device found, Manufacturer ID: 0xec, Chip ID: 0xda
[    8.144246] nand: Samsung NAND 256MiB 3,3V 8-bit
[    8.148995] nand: 256 MiB, SLC, erase size: 128 KiB, page size:
2048, OOB size: 64
[    8.158330] gpmi-nand 1806000.gpmi-nand: Error setting BCH geometry : -22
[    8.166690] gpmi-nand: probe of 1806000.gpmi-nand failed with error -22

Since it is a new board, I suspect one of following problem might
cause that error:

- HW
- MTD does not support Samsung?
- Need kernel configure?

Appreciate your comments and advice.

Thank you very much.

- jupiter



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