Re: [PATCH 1/2] arm64: tegra: add ACONNECT, ADMA and AGIC nodes
From: Sameer Pujar
Date: Thu Jun 06 2019 - 02:02:16 EST
On 6/4/2019 2:37 PM, Jon Hunter wrote:
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@xxxxxxxxxx>
---
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@2a41000 {
+ 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.
I see at various places empty ranges property is used. From DT spec, it
means
there is no translation in the address space between parent/child.
Also I looked at Tegra210 binding,
ranges = <0x702c0000 0x0 0x702c0000 0x00040000>;
Should it be encoded as a triplet(child addr, parent addr, length)?
+ status = "disabled";
+
+ dma@2930000 {
Although I did not do this for Tegra210, I think that the preferred
convention is 'dma-controller@xxxxxxxxx'.
done.
+ 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@2a41000 {
+ compatible = "nvidia,tegra210-agic";
+ #interrupt-cells = <4>;
Why 4? This does not match the binding document for the arm-gic.
will fix.
+ 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.
done
+ 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@2a41000 {
+ 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@2930000 {
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@2a41000 {
+ 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