Re: [RFC PATCH v2 10/11] riscv: soc: Add Allwinner SoC kconfig option

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Hi,

On Sun, Jun 06, 2021 at 09:04:08AM +0000, guoren@xxxxxxxxxx wrote:
> From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
> 
> Add Allwinner kconfig option which selects SoC specific and common
> drivers that is required for this SoC.
> 
> Allwinner D1 uses custom PTE attributes to solve non-coherency SOC
> interconnect issues for dma synchronization, so we set the default
> value when SOC_SUNXI selected.
> 
> Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
> Co-Developed-by: Liu Shaohua <liush@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Liu Shaohua <liush@xxxxxxxxxxxxxxxxx>
> Cc: Anup Patel <anup.patel@xxxxxxx>
> Cc: Atish Patra <atish.patra@xxxxxxx>
> Cc: Christoph Hellwig <hch@xxxxxx>
> Cc: Chen-Yu Tsai <wens@xxxxxxxx>
> Cc: Drew Fustini <drew@xxxxxxxxxxxxxxx>
> Cc: Maxime Ripard <maxime@xxxxxxxxxx>
> Cc: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx>
> Cc: Wei Fu <wefu@xxxxxxxxxx>
> Cc: Wei Wu <lazyparser@xxxxxxxxx>
> ---
>  arch/riscv/Kconfig.socs      | 12 ++++++++++++
>  arch/riscv/configs/defconfig |  1 +
>  2 files changed, 13 insertions(+)
> 
> diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
> index ed96376..055fb3e 100644
> --- a/arch/riscv/Kconfig.socs
> +++ b/arch/riscv/Kconfig.socs
> @@ -69,4 +69,16 @@ config SOC_CANAAN_K210_DTB_SOURCE
>  
>  endif
>  
> +config SOC_SUNXI
> +	bool "Allwinner SoCs"
> +	depends on MMU
> +	select DWMAC_GENERIC
> +	select SERIAL_8250
> +	select SERIAL_8250_CONSOLE
> +	select SERIAL_8250_DW
> +	select SIFIVE_PLIC
> +	select STMMAC_ETH
> +	help
> +	  This enables support for Allwinner SoC platforms like the D1.
> +

We probably don't want to select DWMAC, STMMAC_ETH and the 8250 options,
looks good otherwise.

Maxime

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