On Wed, 2009-06-10 at 21:20 -0500, Kumar Gala wrote:
> On May 26, 2009, at 9:05 PM, Kevin Hao wrote:
>
> > Add 4 partitions in nor flash. Also fix nor flash
> > bank width bug.
>
> Can you explain this.. I'm trying to understand why you set the bank-
> width to 1
The NOR flash (S29GL256N) works in 8-bit mode. And it's also not
interleaved. So the bank-width should be equal to device-width. If we
set bank-width to 2 the flash can not work correctly.
Thanks,
Kevin
>
> - k
>
> >
> >
> > Signed-off-by: Kevin Hao <kexin....@windriver.com>
> > ---
> > arch/powerpc/boot/dts/mpc8569mds.dts | 24 +++++++++++++++++++++++-
> > 1 files changed, 23 insertions(+), 1 deletions(-)
> >
> > diff --git a/arch/powerpc/boot/dts/mpc8569mds.dts b/arch/powerpc/
> > boot/dts/mpc8569mds.dts
> > index 39c2927..1f98990 100644
> > --- a/arch/powerpc/boot/dts/mpc8569mds.dts
> > +++ b/arch/powerpc/boot/dts/mpc8569mds.dts
> > @@ -70,8 +70,30 @@
> > #size-cells = <1>;
> > compatible = "cfi-flash";
> > reg = <0x0 0x0 0x02000000>;
> > - bank-width = <2>;
> > + bank-width = <1>;
> > device-width = <1>;
> > + partit...@0 {
> > + label = "ramdisk";
> > + reg = <0x00000000 0x01c00000>;
> > + };
> > + partit...@1c00000 {
> > + label = "kernel";
> > + reg = <0x01c00000 0x002e0000>;
> > + };
> > + parti...@1ee0000 {
> > + label = "dtb";
> > + reg = <0x01ee0000 0x00020000>;
> > + };
> > + partit...@1f00000 {
> > + label = "firmware";
> > + reg = <0x01f00000 0x00080000>;
> > + read-only;
> > + };
> > + partit...@1f80000 {
> > + label = "u-boot";
> > + reg = <0x01f80000 0x00080000>;
> > + read-only;
> > + };
> > };
> >
> > b...@1,0 {
> > --
> > 1.6.0.4.771.gef3b3
>
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