The RK3568 has an NVDLA-derived NPU at fde40000 with its own IOMMU at
fde4b000. Add both nodes (disabled by default) and the NPU power-domain
child under the PMU power-controller, and point rockchip,pmu at the PMU
syscon that controls the NPU NoC bus-idle.

The power-domain deliberately carries no pm_qos: qos_npu sits behind the
NPU NoC, which is gated until the NPU is brought up, so a genpd power-off
QoS save would fault reading it.

Signed-off-by: Midgy BALON <[email protected]>
---
 arch/arm64/boot/dts/rockchip/rk356x-base.dtsi | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi 
b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
index 64bdd8b7754b5..50ce5a5e4fc24 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
@@ -512,6 +512,13 @@ power-domain@RK3568_PD_GPU {
                                #power-domain-cells = <0>;
                        };
 
+                       pd_npu: power-domain@RK3568_PD_NPU {
+                               reg = <RK3568_PD_NPU>;
+                               clocks = <&cru ACLK_NPU_PRE>,
+                                        <&cru HCLK_NPU_PRE>;
+                               #power-domain-cells = <0>;
+                       };
+
                        /* These power domains are grouped by VD_LOGIC */
                        power-domain@RK3568_PD_VI {
                                reg = <RK3568_PD_VI>;
@@ -948,6 +955,37 @@ qos_rga_wr: qos@fe158300 {
                reg = <0x0 0xfe158300 0x0 0x20>;
        };
 
+       rknn_core_0: npu@fde40000 {
+               compatible = "rockchip,rk3568-rknn-core";
+               reg = <0x0 0xfde40000 0x0 0x1000>,
+                     <0x0 0xfde41000 0x0 0x1000>,
+                     <0x0 0xfde43000 0x0 0x1000>;
+               reg-names = "pc", "cna", "core";
+               interrupts = <GIC_SPI 151 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&cru ACLK_NPU>, <&cru HCLK_NPU>,
+                        <&scmi_clk SCMI_CLK_NPU>, <&cru PCLK_NPU_PRE>;
+               clock-names = "aclk", "hclk", "npu", "pclk";
+               assigned-clocks = <&scmi_clk SCMI_CLK_NPU>;
+               assigned-clock-rates = <200000000>;
+               resets = <&cru SRST_A_NPU>, <&cru SRST_H_NPU>;
+               reset-names = "srst_a", "srst_h";
+               power-domains = <&power RK3568_PD_NPU>;
+               rockchip,pmu = <&pmu>;
+               iommus = <&rknn_mmu_0>;
+               status = "disabled";
+       };
+
+       rknn_mmu_0: iommu@fde4b000 {
+               compatible = "rockchip,iommu";
+               reg = <0x0 0xfde4b000 0x0 0x40>;
+               interrupts = <GIC_SPI 151 IRQ_TYPE_LEVEL_HIGH>;
+               clock-names = "aclk", "iface";
+               clocks = <&cru ACLK_NPU>, <&cru HCLK_NPU>;
+               power-domains = <&power RK3568_PD_NPU>;
+               #iommu-cells = <0>;
+               status = "disabled";
+       };
+
        qos_npu: qos@fe180000 {
                compatible = "rockchip,rk3568-qos", "syscon";
                reg = <0x0 0xfe180000 0x0 0x20>;
-- 
2.39.5

Reply via email to