linux-kernel - [PATCH v8 10/10] arm64: dts: rockchip: enable NPU on ROCK 5B

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250713-6-10-rocket-v8-10-64fa3115e910@tomeuvizoso.net>
Date: Sun, 13 Jul 2025 10:39:00 +0200
From: Tomeu Vizoso <tomeu@...euvizoso.net>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>, 
 Oded Gabbay <ogabbay@...nel.org>, Jonathan Corbet <corbet@....net>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Sumit Semwal <sumit.semwal@...aro.org>, 
 Christian König <christian.koenig@....com>, 
 Sebastian Reichel <sebastian.reichel@...labora.com>, 
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>, 
 Kever Yang <kever.yang@...k-chips.com>, Robin Murphy <robin.murphy@....com>, 
 Daniel Stone <daniel@...ishbar.org>, Da Xue <da@...re.computer>, 
 Philipp Zabel <p.zabel@...gutronix.de>, 
 Jeff Hugo <jeff.hugo@....qualcomm.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 dri-devel@...ts.freedesktop.org, linux-doc@...r.kernel.org, 
 linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org, 
 Tomeu Vizoso <tomeu@...euvizoso.net>
Subject: [PATCH v8 10/10] arm64: dts: rockchip: enable NPU on ROCK 5B

From: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>

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@...labora.com>
Tested-by: Heiko Stuebner <heiko@...ech.de>
Signed-off-by: Tomeu Vizoso <tomeu@...euvizoso.net>
---
 arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dtsi | 57 ++++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dtsi
index 6052787d2560978d2bae6cfbeea5fc1d419d583a..06f73f16901026485c02cecf9176d0d7dc7a021a 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dtsi
@@ -309,6 +309,29 @@ regulator-state-mem {
 	};
 };
 
+&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";
 
@@ -433,6 +456,10 @@ &pd_gpu {
 	domain-supply = <&vdd_gpu_s0>;
 };
 
+&pd_npu {
+	domain-supply = <&vdd_npu_s0>;
+};
+
 &pinctrl {
 	hdmirx {
 		hdmirx_hpd: hdmirx-5v-detection {
@@ -487,6 +514,36 @@ &pwm1 {
 	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_top {
+	status = "okay";
+};
+
+&rknn_mmu_1 {
+	status = "okay";
+};
+
+&rknn_mmu_2 {
+	status = "okay";
+};
+
 &saradc {
 	vref-supply = <&avcc_1v8_s0>;
 	status = "okay";

-- 
2.50.0