From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [mips][cfi] Unable to write into flash under qemu
Date: Tue, 5 Jul 2016 19:34:21 +0200 [thread overview]
Message-ID: <577BEF9D.6090608@gmail.com> (raw)
In-Reply-To: <CAOazyz1Vx405FDJh+Tqfg+UtL138m0QFvSBwLN6svxvhpARHDA@mail.gmail.com>
Am 05.07.2016 um 19:17 schrieb Alon Bar-Lev:
> On 5 July 2016 at 20:05, Daniel Schwierzeck
> <daniel.schwierzeck@gmail.com> wrote:
>>
>>
>> Am 05.07.2016 um 18:50 schrieb Alon Bar-Lev:
>>> Thank you so much!
>>> Erase does not complain any more.
>>
>> please do not top-quote on a mailing list.
>>
>
> Sorry.
>
>>>
>>> However, write is not working.
>>>
>>> Result is always something like:
>>> be040000: 00800080 00800080 00800080 00800080 ................
>>
>> hm, I can't reproduce that:
>>
>> $ qemu-system-mips -M malta -cpu 24Kc -m 256 -nographic -drive if=pflash,file=/work/u-boot-mips/pflash.bin,format=raw -netdev user,id=ubtest,tftp=/work/u-boot-mips -device pcnet,netdev=ubtest
>>
>> malta # md BE040000 4
>> be040000: ffffffff ffffffff ffffffff ffffffff ................
>> malta # erase BE040000 +10000
>>
>> . done
>> Erased 1 sectors
>> malta # md BE040000 4
>> be040000: ffffffff ffffffff ffffffff ffffffff ................
>
>
> Can you please try to copy from sector in flash to another as I've shown?
> It seems to happen especially in this case.
> Maybe it is just impossible...
>
> <snip>
>
I think it's a bug in flash_write_cfibuffer(). It looks like the flash status value is written to the destination address. It works if you disable CONFIG_SYS_FLASH_USE_BUFFER_WRITE in include/configs/malta.h.
--
- Daniel
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next prev parent reply other threads:[~2016-07-05 17:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-05 0:08 [U-Boot] [mips][cfi] Unable to write into flash under qemu Alon Bar-Lev
2016-07-05 12:04 ` Alon Bar-Lev
2016-07-05 16:10 ` Daniel Schwierzeck
2016-07-05 16:50 ` Alon Bar-Lev
2016-07-05 17:05 ` Daniel Schwierzeck
2016-07-05 17:17 ` Alon Bar-Lev
2016-07-05 17:34 ` Daniel Schwierzeck [this message]
2016-07-05 17:57 ` Alon Bar-Lev
2016-07-10 20:50 ` Alon Bar-Lev
2016-07-18 8:38 ` Stefan Roese
2016-07-18 12:13 ` Daniel Schwierzeck
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