Re: [PATCH v3 1/2] arm: dts: arm: add arm corstone500 device tree

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On 22/12/2022 13:32, Emekcan Aras wrote:
> Corstone500[0] is a platform from arm, which includes Cortex-A cores and
> ideal starting point for feature rich System on Chip (SoC) designs
> based on the Cortex-A5 core.
> 
> These device trees contains the necessary bits to support the
> Corstone 500 FVP (Fixed Virtual Platform) and the
> FPGA MPS3 board.
> 
> 0: https://developer.arm.com/documentation/102262/0000
> 
> Signed-off-by: Emekcan Aras <emekcan.aras@xxxxxxx>
> ---
>  arch/arm/boot/dts/Makefile        |   3 +-
>  arch/arm/boot/dts/corstone500.dts | 182 ++++++++++++++++++++++++++++++
>  2 files changed, 184 insertions(+), 1 deletion(-)
>  create mode 100644 arch/arm/boot/dts/corstone500.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 6aa7dc4db2fc..4dc4df0707dc 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1465,7 +1465,8 @@ dtb-$(CONFIG_ARCH_VEXPRESS) += \
>  	vexpress-v2p-ca5s.dtb \
>  	vexpress-v2p-ca9.dtb \
>  	vexpress-v2p-ca15-tc1.dtb \
> -	vexpress-v2p-ca15_a7.dtb
> +	vexpress-v2p-ca15_a7.dtb \
> +	corstone500.dtb

Why this is vexpress platform? If it is true, then add it to vexpress
bindings... It's confusingi and looks disorganized - some bindings here,
some platform there. Who is overseeing it? Who is maintaining? Who keeps
it consistent with other Arm platforms?

>  dtb-$(CONFIG_ARCH_VIRT) += \
>  	xenvm-4.2.dtb
>  dtb-$(CONFIG_ARCH_VT8500) += \
> diff --git a/arch/arm/boot/dts/corstone500.dts b/arch/arm/boot/dts/corstone500.dts
> new file mode 100644
> index 000000000000..bcca7d736c85
> --- /dev/null
> +++ b/arch/arm/boot/dts/corstone500.dts
> @@ -0,0 +1,182 @@
> +// SPDX-License-Identifier: GPL-2.0 or MIT
> +/*
> + * Copyright (c) 2022, Arm Limited. All rights reserved.
> + *
> + */
> +
> +

kbuild reports that patch does not build. :(

Except that other topics which you did not solve from previous case:
1. Missing maintainers entry
2. One binding file for your Corstone platforms, not for each of it.
3. failing `dtbs_check` (at least failing due to non-compiling DTS).
4. Subject prefix not matching other arm platforms.


Best regards,
Krzysztof




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