linux-kernel - Re: [PATCH] 1/3] ARM: dts: at91: sama7g5: Restrict ns

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Message-ID: <YhVLpnQ5fKs5x1Hq@piout.net>
Date:   Tue, 22 Feb 2022 21:46:30 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Hari Prasath <Hari.PrasathGE@...rochip.com>
Cc:     nicolas.ferre@...rochip.com, claudiu.beznea@...rochip.com,
        davem@...emloft.net, ludovic.desroches@...rochip.com,
        robh+dt@...nel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux@...linux.org.uk
Subject: Re: [PATCH] 1/3] ARM: dts: at91: sama7g5: Restrict ns_sram

On 22/02/2022 17:09:22+0530, Hari Prasath wrote:
> Limit the size of SRAM available for the rest of kernel via genalloc API's to
> 13k. The rest of the SRAM is used by CAN controllers and hence this restriction.
> 

Certainly not, if the can controller need the SRAM, they have to
allocate it properly.

> Signed-off-by: Hari Prasath <Hari.PrasathGE@...rochip.com>
> ---
>  arch/arm/boot/dts/sama7g5.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/sama7g5.dtsi b/arch/arm/boot/dts/sama7g5.dtsi
> index eddcfbf4d223..6c7012f74b10 100644
> --- a/arch/arm/boot/dts/sama7g5.dtsi
> +++ b/arch/arm/boot/dts/sama7g5.dtsi
> @@ -65,7 +65,7 @@
>  		compatible = "mmio-sram";
>  		#address-cells = <1>;
>  		#size-cells = <1>;
> -		reg = <0x100000 0x20000>;
> +		reg = <0x100000 0x3400>;
>  		ranges;
>  	};
>  
> -- 
> 2.17.1
> 

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com