Re: [Qemu-devel] [PATCH] pflash_cfi01/pflash_cfi02: convert to memory API

[Avi Kivity]

On 08/28/2011 10:33 PM, Edgar E. Iglesias wrote:
> On Sun, Aug 28, 2011 at 06:43:36PM +0300, Avi Kivity wrote:
> >  cfi02 is annoying in that is ignores some address bits; we probably
> >  want explicit support in the memory API for that.
> >
> >  In order to get the correct opaque into the MemoryRegion object, the
> >  allocation scheme is changed so that the flash emulation code allocates
> >  memory, instead of the caller.  This clears a FIXME in the flash code.
>
> Hi Avi,
>
> Something is going wrong with the flash devices. It can be reproduced
> with the microblaze image on the wiki, you'll see the kernel complain
> with:
> pflash_write: Unimplemented flash cmd sequence (offset 00000000, wcycle 0x0 cmd 
> 0x0 value 0xf0)
> of-flash a0000000.flash: do_map_probe() failed
>
> When it should be saying:
> a0000000.flash: Found 1 x8 devices at 0x0 in 8-bit bank. Manufacturer ID 
> 0x000000 Chip ID 0x000000
> Intel/Sharp Extended Query Table at 0x0031

I get exactly the same behaviour with upstream - 9f94778.  With what 
version does it work correctly?

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.