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Subject: Re: PReP residual to device-tree converter
From: Johannes Berg <johannes@sipsolutions.net>
To: Paul Mackerras <paulus@samba.org>
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Date: Wed, 09 Jul 2008 13:29:12 +0200
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Cc: linuxppc-dev@ozlabs.org, Milton Miller <miltonm@bga.com>,
	David Gibson <dwg@au1.ibm.com>
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On Wed, 2008-07-09 at 12:48 +0200, Johannes Berg wrote:
> > I would like people that have PReP machines to take a copy of
> > /proc/residual, run this program on it, and check that the output is
> > sane.  If it isn't, or if it is missing bits, send me the residual
> > blob with a description of what's wrong in the generated dts.
>=20
> Here's the output from qemu:
[...]

Milton wanted iomem and ioports, I didn't manage to get userspace
working so I printed them in the kernel (hopefully correctly):

iomem:
c0000000-feffffff : PCI host bridge
  c80000f0-c80000ff : 0000:00:01.0

ioports:
00000000-007fffff : PCI host bridge
  00000000-0000001f : dma1
  00000020-00000021 : 8259 (master)
  00000040-0000005f : timer
  00000080-0000008f : dma page reg
  000000a0-000000a1 : 8259 (slave)
  000000c0-000000df : dma2
  000004d0-000004d1 : 8259 edge control


FWIW, my qemu command line was:

qemu-system-ppc -initrd initrd  -kernel linux/arch/ppc/boot/images/zImage.p=
rep -M prep -cpu 604 -serial stdio

johannes

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