[U-Boot] UBI and UBIFS on ARM64

[Heiko Schocher <hs@denx.de>]

Hello Adam,

Am 06.09.2016 um 16:44 schrieb Adam Oleksy:
> Dear U-Boot community,
> I'm developing software for Xilinx ZynqMP platform, which is made in
> 64-bit architecture. I would like to store every artifact needed to
> boot up on the UBIFS partition. I faced problem, that u-boot does not
> want to compile with enabled UBI/UBIFS support, due to lack of some
> atomic operations on longs. So, I've written them (see
> http://pastebin.com/ibp0Zt99). Please note, that I've written only
> that functions, which are needed by UBI/UBIFS. Then UBIFS started work
> on the target. Almost... because I've found that large files (~20MiB)
> can't be read. I've enabled debug messages, but I don't know how to
> interpret them (please see http://pastebin.com/gByDcdvw). Maybe you
> are able to help me?
> I've also checked how the UBIFS behaves in the Linux, and the result
> is that everything works as expected. It means that I can write large
> files to UBIFS, and read them back successfully.
> Should you need any further information, please do not hesitate to contact me.

Hard to say ... here an extract of your debug log:

UBI DBG io (pid 1): read 509 bytes from PEB 1059:10040
UBIFS error (ubi0:0 pid 0): ubifs_check_node: bad magic 0x61018ce, expected 0x6101831

Here begin your problem ... for some reasons you do not read the
correct magic number ... I tend to say some problem with your nand
driver and/or io functions, maybe cache setup? Sorry, more I cannot say ...

UBIFS error (ubi0:0 pid 0): ubifs_check_node: bad node at LEB 417:9912
Not a node, first 24 bytes:UBIFS error (ubi0:0 pid 0): ubifs_read_node: expected node type 1
UBIFS DBG tnc: key (67, data, 4679)
UBIFS error (ubi0:0 pid 0): do_readpage: cannot read page 4679 of inode 67, error -117
Error reading file 'rfsw-image_ramdisk.itb'
UBI DBG gen (pid 1): close device 0, volume 0, mode 1

bye,
Heiko
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