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From: Laurent Pinchart <laurentp@cse-semaphore.com>
To: linuxppc-dev@ozlabs.org
Subject: Re: Flash on LocalBus @ MPC8343
Date: Fri, 11 Apr 2008 17:20:54 +0200
References: <47FF802B.5020708@matrix-vision.de>
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Cc: Andre Schwarz <andre.schwarz@matrix-vision.de>
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On Friday 11 April 2008 17:13, Andre Schwarz wrote:
> Hi all,
>=20
> I've been trying hard to make the mtd-partitions available via device=20
> tree on my MPC8343 local bus.
> No success so far ...
>=20
> Everything works fine on my MPC5200B based system - flash layout=20
> definition is quite simple ....
>=20
> To me it looks like there's a problem regarding the local bus in general.
>=20
> Am I missing a "compatible" or anything else ? "reg" or "ranges" ?
>=20
> The other boards use static map files or provide partition over command=20
> line args .... so suitable dts available.
>=20
> Flash is 8MB size in 16-Bit configuration and should reside on=20
> 0xFF800000 at cs0.
>=20
>=20
> Any hints ?
>=20
>=20
> regards,
> Andre Schwarz
> Matrix Vision
>=20
>=20
> dts syntax :
>=20
> <snip>
>=20
>         localbus@e0005000 {
>                 #address-cells =3D <2>;
>                 #size-cells =3D <1>;
>                 compatible =3D "fsl,mpc8343-localbus", "fsl,pq2pro-localb=
us";
>=20
>                 ranges =3D <0x0 0x0 0xff800000 0x00800000>;
>=20
>                 flash@0,0 {
>                         compatible =3D "amd,s29gl64", "cfi-flash";
>                         reg =3D <0 0 800000>;

reg should be <0 0 0x800000>.

>                         #address-cells =3D <1>;
>                         #size-cells =3D <1>;
>                         bank-width =3D <2>;
>                         device-width =3D <2>;
>=20
>                         ppcboot_env@0 {
>                                 reg =3D <0x0 0x2000>;
>                         };

=2D-=20
Laurent Pinchart
CSE Semaphore Belgium

Chaussee de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
=46 +32 (2) 387 42 75

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