Re: [PATCH] ARM: dts: omap3-evm: Fix missing NAND partition information

Derald D. Woods
2017-12-12T16:32:12Z

On Tue, Dec 12, 2017 at 07:39:30AM +0100, Ladislav Michl wrote:
> On Mon, Dec 11, 2017 at 10:12:13PM -0600, Derald D. Woods wrote:
> > The partition information was omitted during the conversion to OMAP3430
> > specific data.
>
> That could be intentional...

I am fixing an addition that I created.

>
> > The data added by this commit is consistent with current U-Boot default
> > definitions.
>
> What about passing U-Boot partitions information to kernel instead?
>

I am testing using an appended device-tree. This has been the most
reliable method for the OMAP34XX boards that I have. If you have an
example config, with working command line MTDPARTS, for beagleboard(Rev.
C4), Overo TOBI, or similiar OMAP34XX, I will gladly use it. Also note
that other OMAP34XX boards currently provide a default partition
layout. Is that bad practice for all of those as well? I am open to
exploring the method that actually works.

- Derald

> > Fixes: 62fe1d337461 ("ARM: dts: omap3-evm: Add OMAP3530 specific device
> > tree processor data")
> >
> > Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
> > ---
> > arch/arm/boot/dts/omap3-evm.dts | 25 +++++++++++++++++++++++++
> > 1 file changed, 25 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
> > index 21a3b88aef0c..1220deb47aae 100644
> > --- a/arch/arm/boot/dts/omap3-evm.dts
> > +++ b/arch/arm/boot/dts/omap3-evm.dts
> > @@ -85,5 +85,30 @@
> >
> > #address-cells = <1>;
> > #size-cells = <1>;
> > +
> > + partition@0 {
> > + label = "spl";
> > + reg = <0 0x80000>;
> > + };
> > + partition@80000 {
> > + label = "u-boot";
> > + reg = <0x80000 0x1c0000>;
> > + };
> > + partition@240000 {
> > + label = "dtb";
> > + reg = <0x240000 0x20000>;
> > + };
> > + partition@260000 {
> > + label = "u-boot-env";
> > + reg = <0x260000 0x20000>;
> > + };
> > + partition@280000 {
> > + label = "kernel";
> > + reg = <0x280000 0x600000>;
> > + };
> > + partition@880000 {
> > + label = "rootfs";
> > + reg = <0x880000 0>;
> > + };
> > };
> > };
> > --
> > 2.15.1
> >
> > --
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