From: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Date: Mon, 21 Jul 2025 09:17:37 +0000 (+0200)
Subject: arm64: dts: rockchip: enable NPU on ROCK 5B
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=3af6a83fc85033e44ce5cd0e1de54dc20b7e15af;p=users%2Fhch%2Fmisc.git

arm64: dts: rockchip: enable NPU on ROCK 5B

The NPU on the ROCK5B uses the same regulator for both the sram-supply
and the npu's supply. Add this regulator, and enable all the NPU bits.
Also add the regulator as a domain-supply to the pd_npu power domain.

v8:
- Remove notion of top core (Robin Murphy)

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Link: https://lore.kernel.org/r/20250721-6-10-rocket-v9-10-77ebd484941e@tomeuvizoso.net
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi
index 973d39a7e0e0..612808d2b4c5 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi
@@ -268,6 +268,29 @@
 	};
 };
 
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1m2_xfer>;
+	status = "okay";
+
+	vdd_npu_s0: regulator@42 {
+		compatible = "rockchip,rk8602";
+		reg = <0x42>;
+		fcs,suspend-voltage-selector = <1>;
+		regulator-name = "vdd_npu_s0";
+		regulator-boot-on;
+		regulator-enable-ramp-delay = <500>;
+		regulator-min-microvolt = <550000>;
+		regulator-max-microvolt = <950000>;
+		regulator-ramp-delay = <2300>;
+		vin-supply = <&vcc5v0_sys>;
+
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		 };
+	};
+};
+
 &i2c6 {
 	status = "okay";
 
@@ -392,6 +415,10 @@
 	domain-supply = <&vdd_gpu_s0>;
 };
 
+&pd_npu {
+	domain-supply = <&vdd_npu_s0>;
+};
+
 &pinctrl {
 	hym8563 {
 		hym8563_int: hym8563-int {
@@ -424,6 +451,36 @@
 	status = "okay";
 };
 
+&rknn_core_0 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_core_1 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_core_2 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_mmu_0 {
+	status = "okay";
+};
+
+&rknn_mmu_1 {
+	status = "okay";
+};
+
+&rknn_mmu_2 {
+	status = "okay";
+};
+
 &saradc {
 	vref-supply = <&avcc_1v8_s0>;
 	status = "okay";