[U-Boot] [mips][cfi] Unable to write into flash under qemu

[Daniel Schwierzeck]

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.

> 
> 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    ................


and saveenv works for me too:

U-Boot 2016.07-rc3-00016-gbf4c649 (Jul 05 2016 - 18:55:54 +0200)

Board: MIPS Malta CoreLV
DRAM:  256 MiB
Flash: 4 MiB
*** Warning - bad CRC, using default environment

In:    serial at 3f8
Out:   serial at 3f8
Err:   serial at 3f8
Net:   pcnet#0
IDE:   Bus 0: not available  
malta # md be3e0000                                
be3e0000: ffffffff ffffffff ffffffff ffffffff    ................
be3e0010: ffffffff ffffffff ffffffff ffffffff    ................
be3e0020: ffffffff ffffffff ffffffff ffffffff    ................
be3e0030: ffffffff ffffffff ffffffff ffffffff    ................
be3e0040: ffffffff ffffffff ffffffff ffffffff    ................
be3e0050: ffffffff ffffffff ffffffff ffffffff    ................
be3e0060: ffffffff ffffffff ffffffff ffffffff    ................
be3e0070: ffffffff ffffffff ffffffff ffffffff    ................
be3e0080: ffffffff ffffffff ffffffff ffffffff    ................
be3e0090: ffffffff ffffffff ffffffff ffffffff    ................
be3e00a0: ffffffff ffffffff ffffffff ffffffff    ................
be3e00b0: ffffffff ffffffff ffffffff ffffffff    ................
be3e00c0: ffffffff ffffffff ffffffff ffffffff    ................
be3e00d0: ffffffff ffffffff ffffffff ffffffff    ................
be3e00e0: ffffffff ffffffff ffffffff ffffffff    ................
be3e00f0: ffffffff ffffffff ffffffff ffffffff    ................
malta # save
Saving Environment to Flash...
Un-Protected 2 sectors
Erasing Flash...
.. done
Erased 2 sectors
Writing to Flash... done
Protected 2 sectors
malta # md be3e0000
be3e0000: cc07705a 62617564 72617465 3d313135    ..pZbaudrate=115
be3e0010: 32303000 65746861 63743d70 636e6574    200.ethact=pcnet
be3e0020: 23300065 74686164 64723d35 323a3534    #0.ethaddr=52:54
be3e0030: 3a30303a 31323a33 343a3536 00666474    :00:12:34:56.fdt
be3e0040: 636f6e74 726f6c61 6464723d 38666666    controladdr=8fff
be3e0050: 37373030 00737464 6572723d 73657269    7700.stderr=seri
be3e0060: 616c4033 66380073 7464696e 3d736572    al at 3f8.stdin=ser
be3e0070: 69616c40 33663800 7374646f 75743d73    ial at 3f8.stdout=s
be3e0080: 65726961 6c403366 38000000 00000000    erial at 3f8.......
be3e0090: 00000000 00000000 00000000 00000000    ................
be3e00a0: 00000000 00000000 00000000 00000000    ................
be3e00b0: 00000000 00000000 00000000 00000000    ................
be3e00c0: 00000000 00000000 00000000 00000000    ................
be3e00d0: 00000000 00000000 00000000 00000000    ................
be3e00e0: 00000000 00000000 00000000 00000000    ................
be3e00f0: 00000000 00000000 00000000 00000000    ................


> 
> I enabled the debug info of both u-boot and qemu.
> I hope it helps.
> I am using master of qemu and u-boot, I get similar behavior in qemu
> since ever 1.5.
> Any clue?

I'm also using master of U-Boot and Qemu

-- 
- Daniel

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