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

On Sun, Jun 06, 2021 at 09:04:08AM +0000, guoren@kernel.org wrote:
> From: Guo Ren <guoren@linux.alibaba.com>
>
> 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@linux.alibaba.com>
> Co-Developed-by: Liu Shaohua <liush@allwinnertech.com>
> Signed-off-by: Liu Shaohua <liush@allwinnertech.com>
> Cc: Anup Patel <anup.patel@wdc.com>
> Cc: Atish Patra <atish.patra@wdc.com>
> Cc: Christoph Hellwig <hch@lst.de>
> Cc: Chen-Yu Tsai <wens@csie.org>
> Cc: Drew Fustini <drew@beagleboard.org>
> Cc: Maxime Ripard <maxime@cerno.tech>
> Cc: Palmer Dabbelt <palmerdabbelt@google.com>
> Cc: Wei Fu <wefu@redhat.com>
> Cc: Wei Wu <lazyparser@gmail.com>
> ---
> 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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