linux-kernel - Re: [PATCH v3 5/7] riscv: Kconfig.socs: Allow SOC

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Message-ID: <ef8df22f-dac8-4652-bf17-d10254e6abfb@kernel.org>
Date: Tue, 5 Mar 2024 08:46:26 +0900
From: Damien Le Moal <dlemoal@...nel.org>
To: Yangyu Chen <cyy@...self.name>, linux-riscv@...ts.infradead.org
Cc: Conor Dooley <conor@...nel.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt
 <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
 Guo Ren <guoren@...nel.org>, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, Conor Dooley <conor.dooley@...rochip.com>
Subject: Re: [PATCH v3 5/7] riscv: Kconfig.socs: Allow SOC_CANAAN with MMU for
 K230

On 3/5/24 06:05, Yangyu Chen wrote:
> Since K230 was released, SOC_CANAAN is no longer only referred to the K210.
> Remove it depends on !MMU will allow building dts for K230 and remove the
> K210 string from the help message.
> 
> Signed-off-by: Yangyu Chen <cyy@...self.name>
> Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
> ---
>  arch/riscv/Kconfig.socs | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
> index 623de5f8a208..b4e9b7f75510 100644
> --- a/arch/riscv/Kconfig.socs
> +++ b/arch/riscv/Kconfig.socs
> @@ -75,13 +75,12 @@ config ARCH_CANAAN
>  	def_bool SOC_CANAAN
>  
>  config SOC_CANAAN
> -	bool "Canaan Kendryte K210 SoC"
> -	depends on !MMU

This seems wrong to me. The k210 support does require no-mmu. So why remove
this ? Does the k230 have MMU support ? If yes, then I do not think these 2 can
fall under the same SOC_CANAAN.

> +	bool "Canaan Kendryte SoC"
>  	select CLINT_TIMER if RISCV_M_MODE
>  	select ARCH_HAS_RESET_CONTROLLER
>  	select PINCTRL
>  	select COMMON_CLK
>  	help
> -	  This enables support for Canaan Kendryte K210 SoC platform hardware.
> +	  This enables support for Canaan Kendryte SoC platform hardware.
>  
>  endmenu # "SoC selection"

-- 
Damien Le Moal
Western Digital Research