linux-kernel - Re: [PATCH v21 4/4] arm64: dts: mt8183: add scp node

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Date:   Thu, 10 Sep 2020 12:51:45 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Pi-Hsun Shih <pihsun@...omium.org>
Cc:     Eddie Huang <eddie.huang@...iatek.com>,
        Erin Lo <erin.lo@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v21 4/4] arm64: dts: mt8183: add scp node



On 12/11/2019 12:03, Pi-Hsun Shih wrote:
> From: Eddie Huang <eddie.huang@...iatek.com>
> 
> Add scp node to mt8183 and mt8183-evb
> 
> Signed-off-by: Erin Lo <erin.lo@...iatek.com>
> Signed-off-by: Pi-Hsun Shih <pihsun@...omium.org>
> Signed-off-by: Eddie Huang <eddie.huang@...iatek.com>

Applied again to v5.9-next/dts64
Thanks!

> ---
> Changes from v20 ... v14:
>   - No change.
> 
> Changes from v13:
>   - Change the size of the cfg register region.
> 
> Changes from v12 ... v10:
>   - No change.
> 
> Changes from v9:
>   - Remove extra reserve-memory-vpu_share node.
> 
> Changes from v8:
>   - New patch.
> ---
>   arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 11 +++++++++++
>   arch/arm64/boot/dts/mediatek/mt8183.dtsi    | 12 ++++++++++++
>   2 files changed, 23 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
> index 1fb195c683c3..ddb7a7ac9655 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
> +++ b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
> @@ -24,6 +24,17 @@ memory@...00000 {
>   	chosen {
>   		stdout-path = "serial0:921600n8";
>   	};
> +
> +	reserved-memory {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +		scp_mem_reserved: scp_mem_region {
> +			compatible = "shared-dma-pool";
> +			reg = <0 0x50000000 0 0x2900000>;
> +			no-map;
> +		};
> +	};
>   };
>   
>   &auxadc {
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index 10b32471bc7b..e582f5e6691d 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -269,6 +269,18 @@ pwrap: pwrap@...0d000 {
>   			clock-names = "spi", "wrap";
>   		};
>   
> +		scp: scp@...00000 {
> +			compatible = "mediatek,mt8183-scp";
> +			reg = <0 0x10500000 0 0x80000>,
> +			      <0 0x105c0000 0 0x19080>;
> +			reg-names = "sram", "cfg";
> +			interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&infracfg CLK_INFRA_SCPSYS>;
> +			clock-names = "main";
> +			memory-region = <&scp_mem_reserved>;
> +			status = "disabled";
> +		};
> +
>   		systimer: timer@...17000 {
>   			compatible = "mediatek,mt8183-timer",
>   				     "mediatek,mt6765-timer";
>