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Date: Tue, 6 Dec 2005 13:55:43 -0600
Message-ID: <DCEAAC0833DD314AB0B58112AD99B93B8594C1@ismail.innsys.innovsys.com>
From: "Rune Torgersen" <runet@innovsys.com>
To: "Laurent Lagrange" <lagrange@fr.oleane.com>,
	"Matt Porter" <mporter@kernel.crashing.org>
Cc: linuxppc-embedded@ozlabs.org
Subject: RE: PPC 32bits and big RAM mapping problem
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> -----Original Message-----
> From:  Rune Torgersen
> Sent: Thursday, December 01, 2005 12:43
> To: Laurent Lagrange
> Cc: linuxppc-embedded@ozlabs.org
> Subject: RE: PPC 32bits and big RAM mapping problem
>=20
> > -----Original Message-----
> > From: Laurent Lagrange
> > Sent: Thursday, December 01, 2005 11:48
> > To: linuxppc-embedded@ozlabs.org
> > Subject: PPC 32bits and big RAM mapping problem
>=20
> > So I'm under the impression to be cornered in my shoes.
> > Any idea, book, article, prediction would be welcome.
>=20
> I have 2GB of ram working on my PPC32 board.
>=20
> You have to change the following in the kernel config:
> Under Advanced Setup:
> 	Set Maximum Low memory (Set to 0x40000000)
> 	Set Custom Kernel config address (Set to 0xA0000000)
>=20
> I do not remember if I had to change anything else.

Finally got enough history ripped out of my old bitkeeper repos...
All I had to do to get 2GB of RAM to work on a 8266 was:

CONFIG_ADVANCED_OPTIONS=3Dy
CONFIG_HIGHMEM_START_BOOL=3Dy
CONFIG_HIGHMEM_START=3D0xee000000
CONFIG_LOWMEM_SIZE_BOOL=3Dy
CONFIG_LOWMEM_SIZE=3D0x40000000
CONFIG_KERNEL_START_BOOL=3Dy
CONFIG_KERNEL_START=3D0xa0000000