Hi Geert,
On 22/08/14 17:12, Geert Uytterhoeven wrote:
Hi Greg,
On Fri, Aug 22, 2014 at 2:40 AM, Greg Ungerer <g...@uclinux.org> wrote:
qemu: hardware error: mcf_fec_read: Bad address 0x1c4
Hmmm, yeah, it does stop there. Not sure why. I will need to look
more closely at that.
Did you found anything?
Yep. The problem is that the FEC driver is writing to registers
that don't exist in the FEC hardware module on the ColdFire
family. Support for some of the extended registers used on
the FEC are used on ARM implementations, and they had added
support for those in more recent years.
I never picked those up on real hardware. Accesses to those
on addresses cause no (visible) problems.
Anyway, attached is a patch I propose to fix it. I will be
sending this to the linux net-dev list soon.
Instead of sprinkling the driver with (more) #ifdefs, wouldn't it be
better to use FEC_QUIRK_* flags in fec_devtype / platform data?
This patch only added one more #ifdef... But your right, it
would be nice to have a lot less. I'll take another look at this.
Thanks
Greg
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