Re: [Qemu-devel] [PATCH] (master, stable-0.13) zaurus: workaround for io base address rounded down

[Blue Swirl]

On Wed, Oct 13, 2010 at 7:12 PM, Juergen Lock <address@hidden> wrote:
> The 2nd scoop's base address (0x08800040) now gets rounded down to
> start of page which causes its io read/write callbacks to be passed
> addresses 0x40 higher than the code expects:  (as witnessed by
> "Bad register offset" messages and failure to attach the internal
> CF disk aka microdrive at least.)
>
> [There may be more bugs of this kind hiding in other targets, this
>  was just the one I tested...]

The devices are passed an offset to base address. Perhaps the real
problem is that scoop_init registers too much MMIO: 0x1000, when the
real range should be only 0x28. Also the registers are in 4 byte
intervals and any access to address between the registers also
triggers a warning.

What were the messages exactly?