Re: [PATCH] arm64: dts: ti: k3-am69-sk: Update OSPI partitions offsets

[Kumar, Udit]

On 8/30/2024 2:52 PM, Nishanth Menon wrote:
> On 14:37-20240830, Beleswar Padhi wrote:
> > OSPI NOR flash was partitioned with a size of 1 MB for the initial
> > bootloader ("ospi.tiboot3"). On the AM69-SK board, boot failures were
> > sometimes observed when the initial bootloader size exceeded 512 KB. To
> Why does the boot fail when > 512MB?
>
> > address this, the initial bootloader image has been optimized to be
> > smaller than 512 KB.
> >
> > Therefore, limit the first OSPI partition size to 512 KB and adjust the
> > remaining size across the subsequent partitions.
> I am NOT a fan of redoing flash partition organization of platforms that
> are already in production - all kinds of ecosystem messes happen as a
> result. Alternatively - give the 512K to u-boot tispl partition and
> leave all others as is - this will at least allow people's current env
> to be retained.


If preference to keep same partitions, which are defined once. Then 
let's align u-boot with this.

Thanks to refactor in u-boot , now AM69 and J784S4 can stay at different 
config.

> > Signed-off-by: Beleswar Padhi <b-padhi@xxxxxx>
> > ---
> >   arch/arm64/boot/dts/ti/k3-am69-sk.dts | 18 +++++++++---------
> >   1 file changed, 9 insertions(+), 9 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
> > index 1e36965a1403..641236918379 100644
> > --- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
> > +++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
> > @@ -1241,27 +1241,27 @@ partitions {
> >   
> >   			partition@0 {
> >   				label = "ospi.tiboot3";
> > -				reg = <0x0 0x100000>;
> > +				reg = <0x0 0x80000>;
> >   			};
> >   
> > -			partition@100000 {
> > +			partition@80000 {
> >   				label = "ospi.tispl";
> > -				reg = <0x100000 0x200000>;
> > +				reg = <0x80000 0x200000>;
> >   			};
> >   
> > -			partition@300000 {
> > +			partition@280000 {
> >   				label = "ospi.u-boot";
> > -				reg = <0x300000 0x400000>;
> > +				reg = <0x280000 0x400000>;
> >   			};
> >   
> > -			partition@700000 {
> > +			partition@680000 {
> >   				label = "ospi.env";
> > -				reg = <0x700000 0x40000>;
> > +				reg = <0x680000 0x40000>;
> >   			};
> >   
> > -			partition@740000 {
> > +			partition@6c0000 {
> >   				label = "ospi.env.backup";
> > -				reg = <0x740000 0x40000>;
> > +				reg = <0x6c0000 0x40000>;
> >   			};
> >   
> >   			partition@800000 {
> > --
> > 2.34.1