2022-03-21 22:28:32

by Pali Rohár

[permalink] [raw]
Subject: Re: [PATCH 1/2] arm64: dts: uDPU: update partition table

On Monday 21 March 2022 13:17:27 Robert Marko wrote:
> Partition currently called "uboot" does not only contain U-boot, but
> rather it contains TF-A, U-boot and U-boot environment.
>
> So, to avoid accidentally deleting the U-boot environment which is
> located at 0x180000 split the partition.
>
> "uboot" is not the correct name as you can't boot these boards with U-boot
> only, TF-A must be present as well, so rename the "uboot" partition to
> "firmware".
>
> While we are here, describe the NOR node as "spi-flash@0" instead of
> "m25p80@0" which is the old SPI-NOR driver name.
>
> Signed-off-by: Robert Marko <[email protected]>
> ---
> arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts | 13 +++++++++----
> 1 file changed, 9 insertions(+), 4 deletions(-)

FYI, U-Boot now contains copy of kernel's A3720 DTS files, so you should
send same patch also to U-Boot project.

> diff --git a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
> index 95d46e8d081c..ac64949bb53e 100644
> --- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
> +++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
> @@ -99,7 +99,7 @@ &spi0 {
> pinctrl-names = "default";
> pinctrl-0 = <&spi_quad_pins>;
>
> - m25p80@0 {
> + spi-flash@0 {
> compatible = "jedec,spi-nor";
> reg = <0>;
> spi-max-frequency = <54000000>;
> @@ -108,10 +108,15 @@ partitions {
> compatible = "fixed-partitions";
> #address-cells = <1>;
> #size-cells = <1>;
> - /* only bootloader is located on the SPI */
> +
> partition@0 {
> - label = "uboot";
> - reg = <0 0x400000>;
> + label = "firmware";
> + reg = <0x0 0x180000>;
> + };
> +
> + partition@180000 {
> + label = "u-boot-env";
> + reg = <0x180000 0x10000>;
> };
> };
> };
> --
> 2.35.1
>


2022-03-21 22:43:49

by Robert Marko

[permalink] [raw]
Subject: Re: [PATCH 1/2] arm64: dts: uDPU: update partition table

On Mon, Mar 21, 2022 at 2:41 PM Pali Rohár <[email protected]> wrote:
>
> On Monday 21 March 2022 13:17:27 Robert Marko wrote:
> > Partition currently called "uboot" does not only contain U-boot, but
> > rather it contains TF-A, U-boot and U-boot environment.
> >
> > So, to avoid accidentally deleting the U-boot environment which is
> > located at 0x180000 split the partition.
> >
> > "uboot" is not the correct name as you can't boot these boards with U-boot
> > only, TF-A must be present as well, so rename the "uboot" partition to
> > "firmware".
> >
> > While we are here, describe the NOR node as "spi-flash@0" instead of
> > "m25p80@0" which is the old SPI-NOR driver name.
> >
> > Signed-off-by: Robert Marko <[email protected]>
> > ---
> > arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts | 13 +++++++++----
> > 1 file changed, 9 insertions(+), 4 deletions(-)
>
> FYI, U-Boot now contains copy of kernel's A3720 DTS files, so you should
> send same patch also to U-Boot project.

I am working on uDPU fixes for U-boot as well so it will get synced as
part of the series.
Regards,
Robert
>
> > diff --git a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
> > index 95d46e8d081c..ac64949bb53e 100644
> > --- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
> > +++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
> > @@ -99,7 +99,7 @@ &spi0 {
> > pinctrl-names = "default";
> > pinctrl-0 = <&spi_quad_pins>;
> >
> > - m25p80@0 {
> > + spi-flash@0 {
> > compatible = "jedec,spi-nor";
> > reg = <0>;
> > spi-max-frequency = <54000000>;
> > @@ -108,10 +108,15 @@ partitions {
> > compatible = "fixed-partitions";
> > #address-cells = <1>;
> > #size-cells = <1>;
> > - /* only bootloader is located on the SPI */
> > +
> > partition@0 {
> > - label = "uboot";
> > - reg = <0 0x400000>;
> > + label = "firmware";
> > + reg = <0x0 0x180000>;
> > + };
> > +
> > + partition@180000 {
> > + label = "u-boot-env";
> > + reg = <0x180000 0x10000>;
> > };
> > };
> > };
> > --
> > 2.35.1
> >



--
Robert Marko
Staff Embedded Linux Engineer
Sartura Ltd.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: [email protected]
Web: http://www.sartura.hr