On Fri, Oct 9, 2009 at 2:16 PM, Scott Wood [off-list ref] wrote:

On Fri, Oct 09, 2009 at 01:59:58PM -0400, Roberto Guerra wrote:

quoted

No. I did not. My FDT was simplified from the stock MPC8272ADS:
=3D> fdt list
/ {
=A0 =A0 =A0 =A0 model =3D "pq2fads";
=A0 =A0 =A0 =A0 compatible =3D "fsl,pq2fads";
=A0 =A0 =A0 =A0 #address-cells =3D <0x00000001>;
=A0 =A0 =A0 =A0 #size-cells =3D <0x00000001>;
=A0 =A0 =A0 =A0 cpus {
=A0 =A0 =A0 =A0 };
=A0 =A0 =A0 =A0 memory {
=A0 =A0 =A0 =A0 };
=A0 =A0 =A0 =A0 soc@f0000000 {
=A0 =A0 =A0 =A0 };
=A0 =A0 =A0 =A0 chosen {
=A0 =A0 =A0 =A0 };
};

You need more than that. =A0What happened to all the content of those nod=

es?

quoted

I am searching how I could add the mtd branch between the "soc" and
the "chosen".

Look at the localbus node on the mpc8272ads dts.

Look at (and use) a recent upstream kernel, if you're not already.

-Scott

I've been learning how to modify the dts from
http://www.mjmwired.net/kernel/Documentation/powerpc/dts-bindings/mtd-physm=
ap.txt#49
The original mpc8272ads.dts represents four 8-bit JEDEC Sharp flash
chips in 1 SIMM module:
[snip]        localbus@f0010100 {
                compatible =3D "fsl,mpc8280-localbus",
                             "fsl,pq2-localbus";
                #address-cells =3D <2>;
                #size-cells =3D <1>;
                reg =3D <f0010100 60>;

                ranges =3D <0 0 fe000000 00800000
                          1 0 f4500000 00008000
                          8 0 f8200000 00008000>;

                flash@0,0 {
                        compatible =3D "jedec-flash";
                        reg =3D <0 0 800000>;
                        bank-width =3D <4>;
                        device-width =3D <1>;
                };
[snip]
My board (based on the PQ2FADS, using the MPC8272ADS BSP) uses one
16-bit Spansion (AMD) CFI chip at addresses FF800000 through FFFFFFFF.
It probably needs to be represented this way (I've only made changes
to the "flash" section.
[snip]
                flash@0,0 {
                        compatible =3D "amd, s29jl064h", "cfi-flash";
                        reg =3D <0 0 800000>;
                        bank-width =3D <2>;
                        device-width =3D <2>;
                };
[snip]
However, I don't know what would be the correct addresses to type
after "localbus", "flash" and "reg". Is this enough information to
define my dts?
Thanks,
Roberto