linux-kernel - Re: [PATCH 1/2] arm64: dts: uDPU: update partition table

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Message-ID: <20220321134055.o3uz5al5np7fj273@pali>
Date:   Mon, 21 Mar 2022 14:40:55 +0100
From:   Pali Rohár <pali@...nel.org>
To:     Robert Marko <robert.marko@...tura.hr>
Cc:     andrew@...n.ch, gregory.clement@...tlin.com,
        sebastian.hesselbarth@...il.com, robh+dt@...nel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, marek.behun@....cz
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 <robert.marko@...tura.hr>
> ---
>  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@...000 {
> +				label = "u-boot-env";
> +				reg = <0x180000 0x10000>;
>  			};
>  		};
>  	};
> -- 
> 2.35.1
>