linux-kernel - Re: [PATCH v3 03/17] arm64: dts: mediatek: Increase the size BL31 reserved memory

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Message-ID: <dcacbef3-43e2-090f-1493-be40b1e9cd22@gmail.com>
Date:   Thu, 30 Mar 2023 19:20:37 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     amergnat@...libre.com, Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Chaotian Jing <chaotian.jing@...iatek.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Wenbin Mei <wenbin.mei@...iatek.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Zhiyong Tao <zhiyong.tao@...iatek.com>,
        Bernhard Rosenkränzer <bero@...libre.com>
Cc:     linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-mmc@...r.kernel.org,
        linux-gpio@...r.kernel.org,
        Alexandre Bailon <abailon@...libre.com>,
        Fabien Parent <fparent@...libre.com>,
        Amjad Ouled-Ameur <aouledameur@...libre.com>
Subject: Re: [PATCH v3 03/17] arm64: dts: mediatek: Increase the size BL31
 reserved memory



On 29/03/2023 10:54, amergnat@...libre.com wrote:
> From: Alexandre Bailon <abailon@...libre.com>
> 
> The reserved size for BL31 is too small.
> This has been highlighted by the MPU that now restrict access to BL31
> memory to secure world only.
> This increase the size of the reserved memory.
> 
> Signed-off-by: Alexandre Bailon <abailon@...libre.com>
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>

Applied, thanks!

> ---
>   arch/arm64/boot/dts/mediatek/mt8365-evk.dts | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8365-evk.dts b/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
> index b68aee8f229f..fc7f6d8ae173 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
> +++ b/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
> @@ -65,10 +65,10 @@ reserved-memory {
>   		#size-cells = <2>;
>   		ranges;
>   
> -		/* 128 KiB reserved for ARM Trusted Firmware (BL31) */
> +		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
>   		bl31_secmon_reserved: secmon@...00000 {
>   			no-map;
> -			reg = <0 0x43000000 0 0x20000>;
> +			reg = <0 0x43000000 0 0x30000>;
>   		};
>   
>   		/* 12 MiB reserved for OP-TEE (BL32)
>