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Message-ID: <CAJF2gTRbBcTOxMa2+WA2tkKYjxQ7iqNa+_xK_SNdjdN6Fu4V-g@mail.gmail.com>
Date:   Sat, 26 Nov 2022 08:23:48 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Samuel Holland <samuel@...lland.org>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        linux-sunxi@...ts.linux.dev, Palmer Dabbelt <palmer@...belt.com>,
        Conor Dooley <conor@...nel.org>,
        linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Jisheng Zhang <jszhang@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andre Przywara <andre.przywara@....com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Anup Patel <apatel@...tanamicro.com>,
        Atish Patra <atishp@...osinc.com>,
        Christian Hewitt <christianshewitt@...il.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Heinrich Schuchardt <heinrich.schuchardt@...onical.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Stanislav Jakubek <stano.jakubek@...il.com>
Subject: Re: [PATCH v2 11/12] riscv: Add the Allwinner SoC family Kconfig option

Reviewed-by: Guo Ren <guoren@...nel.org>

On Sat, Nov 26, 2022 at 7:47 AM Samuel Holland <samuel@...lland.org> wrote:
>
> Allwinner manufactures the sunxi family of application processors. This
> includes the "sun8i" series of ARMv7 SoCs, the "sun50i" series of ARMv8
> SoCs, and now the "sun20i" series of 64-bit RISC-V SoCs.
>
> The first SoC in the sun20i series is D1, containing a single T-HEAD
> C906 core. D1s is a low-pin-count variant of D1 with co-packaged DRAM.
>
> Most peripherals are shared across the entire chip family. In fact, the
> ARMv7 T113 SoC is pin-compatible and almost entirely register-compatible
> with the D1s.
>
> This means many existing device drivers can be reused. To facilitate
> this reuse, name the symbol ARCH_SUNXI, since that is what the existing
> drivers have as their dependency.
>
> Reviewed-by: Heiko Stuebner <heiko@...ech.de>
> Tested-by: Heiko Stuebner <heiko@...ech.de>
> Signed-off-by: Samuel Holland <samuel@...lland.org>
> ---
>
> Changes in v2:
>  - Sort Kconfig as if we had done s/SOC_/ARCH_/ for future-proofing
>
>  arch/riscv/Kconfig.socs | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
> index 69774bb362d6..4c1dc2ca11f9 100644
> --- a/arch/riscv/Kconfig.socs
> +++ b/arch/riscv/Kconfig.socs
> @@ -26,6 +26,15 @@ config SOC_STARFIVE
>         help
>           This enables support for StarFive SoC platform hardware.
>
> +config ARCH_SUNXI
> +       bool "Allwinner sun20i SoCs"
> +       select ERRATA_THEAD if MMU && !XIP_KERNEL
> +       select SIFIVE_PLIC
> +       select SUN4I_TIMER
> +       help
> +         This enables support for Allwinner sun20i platform hardware,
> +         including boards based on the D1 and D1s SoCs.
> +
>  config SOC_VIRT
>         bool "QEMU Virt Machine"
>         select CLINT_TIMER if RISCV_M_MODE
> --
> 2.37.4
>


-- 
Best Regards
 Guo Ren

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