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From: Juergen Beisert <jbe@pengutronix.de>
To: linuxppc-dev@ozlabs.org
Date: Tue, 10 Jun 2008 11:05:14 +0200
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Subject: Re: Comments on device tree for pcm030
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Maybe everything in this small piece of my dts is wrong. But I don't know h=
ow
the correct way is. All I want is to define a 32MiB flash at the end if the
address space of my MPC5200B based system.

	[...]
        lpb@fe000000 {
                model =3D "fsl,lpb";
                compatible =3D "fsl,lpb";
                ranges =3D <0x0 0xfe000000 0x02000000>;
                flash@0 {
                        compatible =3D "cfi-flash";
                        reg =3D <0x00000000 0x02000000>;
                        bank-width =3D <4>;
		};
	};

The dtc gives me the follwing output:

Warning (reg_format): "reg" property in /lpb@fe000000/flash@0 has invalid l=
ength (8 bytes) (#address-cells =3D=3D 2, #size-cells =3D=3D 1)
Warning (ranges_format): "ranges" property in /lpb@fe000000 has invalid len=
gth (12 bytes) (parent #address-cells =3D=3D 1, child #address-cells =3D=3D=
 2, #size-cells =3D=3D 1)
Warning (avoid_default_addr_size): Relying on default #address-cells value =
for /lpb@fe000000/flash@0
Warning (avoid_default_addr_size): Relying on default #size-cells value for=
 /lpb@fe000000/flash@0

What does it mean?

At runtime I get:

[...]
of-flash fe000000.flash: of_flash device: fe000000-ffffffff
CFI: Found no fe000000.flash device at location zero
of-flash fe000000.flash: do_map_probe() failed
[...]

What's going wrong? Any hint?

Regards,
Juergen

=2D-=20
Dipl.-Ing. Juergen Beisert | http://www.pengutronix.de
=A0Pengutronix - Linux Solutions for Science and Industry
=A0   Handelsregister: Amtsgericht Hildesheim, HRA 2686
=A0 =A0 =A0    Vertretung Sued/Muenchen, Germany
   Phone: +49-8766-939 228 |  Fax: +49-5121-206917-9