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Subject: Re: [PATCH 2/3] arm64: dts: meson-g12: add ATF BL32 reserved-memory
 region
To:     Christian Hewitt <christianshewitt@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Kevin Hilman <khilman@baylibre.com>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org
References: <20220126044954.19069-1-christianshewitt@gmail.com>
 <20220126044954.19069-3-christianshewitt@gmail.com>
From:   Neil Armstrong <narmstrong@baylibre.com>
Organization: Baylibre
Message-ID: <af845f03-6bd4-cc78-2b7c-a32257f8773f@baylibre.com>
Date:   Thu, 27 Jan 2022 11:46:19 +0100
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On 26/01/2022 05:49, Christian Hewitt wrote:
> Add an additional reserved memory region for the BL32 trusted firmware
> present in many devices that boot from Amlogic vendor u-boot.
> 
> Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> index 6d99c23261fb..45947c1031c4 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> @@ -107,6 +107,12 @@
>  			no-map;
>  		};
>  
> +		/* 32 MiB reserved for ARM Trusted Firmware (BL32) */
> +		secmon_reserved_bl32: secmon@5300000 {
> +			reg = <0x0 0x05300000 0x0 0x2000000>;
> +			no-map;
> +		};
> +
>  		linux,cma {
>  			compatible = "shared-dma-pool";
>  			reusable;
> 

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>