linux-kernel - [PATCH v4 4/7] arm64: dts: Add DT node for the VIPNano-QI on the A311D

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Date:   Thu,  1 Dec 2022 10:21:25 +0100
From:   Tomeu Vizoso <tomeu.vizoso@...labora.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     italonicola@...labora.com,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Amlogic Meson
        SoC support),
        linux-amlogic@...ts.infradead.org (open list:ARM/Amlogic Meson SoC
        support), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v4 4/7] arm64: dts: Add DT node for the VIPNano-QI on the A311D

This "NPU" is very similar to the Vivante GPUs and Etnaviv works well
with it with just a few small changes.

v2: Add reference to RESET_NNA (Neil)
v3: Fix indentation (Neil)

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@...labora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi     | 11 +++++++++++
 .../boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts |  4 ++++
 2 files changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 45947c1031c4..61c8461df614 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -11,6 +11,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset/amlogic,meson-g12a-reset.h>
 #include <dt-bindings/thermal/thermal.h>
+#include <dt-bindings/power/meson-g12a-power.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -2484,4 +2485,14 @@ xtal: xtal-clk {
 		#clock-cells = <0>;
 	};
 
+	npu: npu@...00000 {
+		compatible = "vivante,gc";
+		reg = <0x0 0xff100000 0x0 0x20000>;
+		interrupts = <0 147 4>;
+		clocks = <&clkc CLKID_NNA_CORE_CLK>,
+			 <&clkc CLKID_NNA_AXI_CLK>;
+		clock-names = "core", "bus";
+		resets = <&reset RESET_NNA>;
+		power-domains = <&pwrc PWRC_G12A_NNA_ID>;
+	};
 };
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts
index 124a80901084..73f3d87dcefd 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts
@@ -15,6 +15,10 @@ / {
 	compatible = "khadas,vim3", "amlogic,a311d", "amlogic,g12b";
 };
 
+&npu {
+	status = "okay";
+};
+
 /*
  * The VIM3 on-board  MCU can mux the PCIe/USB3.0 shared differential
  * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between
-- 
2.38.1