ichxrom driver question
Dave Peterson
dsp at llnl.gov
Wed Dec 21 21:12:10 EST 2005
On Wednesday 21 December 2005 11:05, Eric W. Biederman wrote:
> > What does "cached flash chip" mean? I have very little familiarity
> > with how these flash chips operate.
>
> The flash chips contents being cached in the cpus cache.
> cat /proc/mtrr and see if covers the 0xfff80000 - 0xffffffff
> range where your flash chip lives.
The MTRR setup looks ok:
# cat /proc/mtrr
reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1
#
> > How do I determine whether there is motherboard-specific magic?
>
> Usually I see if I can read out the id on the flash chip. That
> tests to see if writes make it to the device because you have
> to write a command.
How do I do this?
> > The flash image I tried to install was an exact duplicate of the
> > currently installed flash image, obtained as follows:
> >
> > # dd if=/dev/mtd0 of=bios_image
> >
> > I was just testing the BIOS flashing mechanism to see if it worked.
>
> Ok. That sounds sane. Are you running linuxbios right now or something
> else?
Yes, I'm using linuxbios.
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