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Message-ID: <9f9962fc-a261-aecc-b4c5-408a75ebcb5f@nvidia.com>
Date: Tue, 4 Jun 2019 10:07:53 +0100
From: Jon Hunter <jonathanh@...dia.com>
To: Sameer Pujar <spujar@...dia.com>, <thierry.reding@...il.com>,
<robh+dt@...nel.org>, <mark.rutland@....com>
CC: <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] arm64: tegra: add ACONNECT, ADMA and AGIC nodes
On 06/05/2019 12:58, Sameer Pujar wrote:
> Add DT nodes for following devices on Tegra186 and Tegra194
> * ACONNECT
> * ADMA
> * AGIC
>
> Signed-off-by: Sameer Pujar <spujar@...dia.com>
> ---
> arch/arm64/boot/dts/nvidia/tegra186.dtsi | 67 ++++++++++++++++++++++++++++++++
> arch/arm64/boot/dts/nvidia/tegra194.dtsi | 67 ++++++++++++++++++++++++++++++++
> 2 files changed, 134 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
> index 6e2b6ce..2c432c9 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
> @@ -1153,4 +1153,71 @@
> (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
> interrupt-parent = <&gic>;
> };
> +
> + aconnect@...1000 {
> + compatible = "nvidia,tegra210-aconnect";
> + clocks = <&bpmp TEGRA186_CLK_APE>,
> + <&bpmp TEGRA186_CLK_APB2APE>;
> + clock-names = "ape", "apb2ape";
> + power-domains = <&bpmp TEGRA186_POWER_DOMAIN_AUD>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
My recollection is that non-empty range is preferred from what Rob told
me in the past. See the Tegra210 binding.
> + status = "disabled";
> +
> + dma@...0000 {
Although I did not do this for Tegra210, I think that the preferred
convention is 'dma-controller@...xxxxxx'.
> + compatible = "nvidia,tegra186-adma";
> + reg = <0x0 0x02930000 0x0 0x50000>;
> + interrupt-parent = <&agic>;
> + interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH 0>;
> + #dma-cells = <1>;
> + clocks = <&bpmp TEGRA186_CLK_AHUB>;
> + clock-names = "d_audio";
> + status = "disabled";
> + };
> +
> + agic: agic@...1000 {
> + compatible = "nvidia,tegra210-agic";
> + #interrupt-cells = <4>;
Why 4? This does not match the binding document for the arm-gic.
> + interrupt-controller;
> + reg = <0x0 0x02a41000 0x0 0x1000>,
> + <0x0 0x02a42000 0x0 0x1000>;
I believe that the 2nd address range should have size 0x2000 for the CPU
interfaces.
> + interrupts = <GIC_SPI 145 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_HIGH)>;
> + clocks = <&bpmp TEGRA186_CLK_APE>;
> + clock-names = "clk";
> + status = "disabled";
> + };
> + };
> };
> diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> index c77ca21..dcab504 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> @@ -1054,4 +1054,71 @@
> (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
> interrupt-parent = <&gic>;
> };
> +
> + aconnect@...1000 {
> + compatible = "nvidia,tegra210-aconnect";
> + clocks = <&bpmp TEGRA194_CLK_APE>,
> + <&bpmp TEGRA194_CLK_APB2APE>;
> + clock-names = "ape", "apb2ape";
> + power-domains = <&bpmp TEGRA194_POWER_DOMAIN_AUD>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
Same as above.
> + status = "disabled";
> +
> + dma@...0000 {
Same as above.
> + compatible = "nvidia,tegra186-adma";
> + reg = <0x0 0x02930000 0x0 0x50000>;
> + interrupt-parent = <&agic>;
> + interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH 0>,
> + <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH 0>;
> + #dma-cells = <1>;
> + clocks = <&bpmp TEGRA194_CLK_AHUB>;
> + clock-names = "d_audio";
> + status = "disabled";
> + };
> +
> + agic: agic@...1000 {
> + compatible = "nvidia,tegra210-agic";
> + #interrupt-cells = <4>;
Same as above.
> + interrupt-controller;
> + reg = <0x0 0x02a41000 0x0 0x1000>,
> + <0x0 0x02a42000 0x0 0x1000>;
Same as above.
> + interrupts = <GIC_SPI 145 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_HIGH)>;
> + clocks = <&bpmp TEGRA194_CLK_APE>;
> + clock-names = "clk";
> + status = "disabled";
> + };
> + };
> };
>
Cheers
Jon
--
nvpublic
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