[U-Boot] UBI issues on SAMA5D31 NOR flash

[Heiko Schocher]

Hello Andy,

Am 30.09.2014 11:04, schrieb Andy Pont:
> Hello Heiko,
>
>>> Using the patches from Bo Shen to support the NOR flash on the Atmel
>>
>> which patches?
>
> I can't find the references in Patchman but they were sent to the mailing
> list on 18th July 2014 in a series called "ARM: atmel: sama5d3xek: enable
> NOR flash support".  The patches basically just add the board features to
> enable the IO pins for the NOR flash and to map it into the memory map at
> 0x10000000.
>
>>> U-Boot>   ubi part rootfs
>>> UBI: attaching mtd2 to ubi0
>>> UBI: physical eraseblock size:   131072 bytes (128 KiB)
>>> UBI: logical eraseblock size:    130944 bytes
>>> UBI: smallest flash I/O unit:    1
>>> UBI: VID header offset:          64 (aligned 64)
>>> UBI: data offset:                128
>>> UBI error: vtbl_check: volume table check failed: record 0, error 9
>>
>> seems ubi does not find the volume table ... could you activate
>> ubi error messages ubi_err() ?
>
> Adding:
>
> #define DEBUG
> #define CONFIG_MTD_UBI_DEBUG
> #define CONFIG_MTD_UBI_DEBUG_MSG
> #define CONFIG_UBIFS_FS_DEBUG
>
> Gives the following output:
>
> U-Boot>  ubi part rootfs
>
> ---mtdparts_init---
> last_ids  : nor0=physmap-flash.0
> env_ids   : nor0=physmap-flash.0
> last_parts:
> mtdparts=physmap-flash.0:128k(bootstrap)ro,768k(u-boot)ro,128k(fdt),4m(kerne
> l),10m(rootfs)
> env_parts :
> mtdparts=physmap-flash.0:128k(bootstrap)ro,768k(u-boot)ro,128k(fdt),4m(kerne
> l),10m(rootfs)
>
> last_partition : nor0,0
> env_partition  : nor0,0
> --- find_dev_and_part ---
> id = rootfs
> --- find_dev_and_part ---
> id = rootfs
> Creating 1 MTD partitions on "nor0":
> 0x000000500000-0x000000f00000 : "mtd=4"
> UBI: attaching mtd2 to ubi0
> UBI: physical eraseblock size:   131072 bytes (128 KiB)
> UBI: logical eraseblock size:    130944 bytes
> UBI: smallest flash I/O unit:    1
> UBI: VID header offset:          64 (aligned 64)
> UBI: data offset:                128
> UBI error: vtbl_check: volume table check failed: record 0, error 9
> UBI error: ubi_init: cannot attach mtd2
> UBI error: ubi_init: UBI error: cannot initialize UBI, error -22
> UBI init error 22
> Command failed, result=22

Hmm.. I thought to see something like this:

"too large reserved_pebs %d, good PEBs %d"

I am not familiar with this HW ... I think, you have to debug into it ...
Maybe Bo has an idea?

>> Did the ubi partition work under linux? Did you tried current ML
>> U-Boot (there MTD/UBI and UBIFS is synced with linux 3.15) ...
>
> I haven't booted to Linux yet.  If I try to boot with the kernel that is in
> the NOR flash then I get the following output from the console messages:
>
> 0.nor_flash: Found 1 x16 devices at 0x0 in 16-bit bank. Manufacturer ID
> 0x000089 Chip ID 0x00899a
> Intel/Sharp Extended Query Table at 0x010A
> Intel/Sharp Extended Query Table at 0x010A
> Intel/Sharp Extended Query Table at 0x010A
> Intel/Sharp Extended Query Table at 0x010A
> Intel/Sharp Extended Query Table at 0x010A
> Using buffer write method
> Using auto-unlock on power-up/resume
> cfi_cmdset_0001: Erase suspend on write enabled
> UBI error: ubi_init: UBI error: cannot initialize UBI, error -19

Hmm.. linux returns another error ...

> Is there something that I need to do in order to tell U-Boot and the kernel
> that the base address of the NOR flash device is 0x10000000 rather than 0x0?

I don t know ... but it seems, the chip is detected, so the base addr
should be correct.

bye,
Heiko
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