diff mbox series

[v2,1/7] dt-bindings: npu: rockchip,rknn: Add bindings

Message ID 20250225-6-10-rocket-v2-1-d4dbcfafc141@tomeuvizoso.net
State New
Headers show
Series [v2,1/7] dt-bindings: npu: rockchip,rknn: Add bindings | expand

Commit Message

Tomeu Vizoso Feb. 25, 2025, 7:55 a.m. UTC 
Add the bindings for the Neural Processing Unit IP from Rockchip.

v2:
- Adapt to new node structure (one node per core, each with its own
  IOMMU)
- Several misc. fixes from Sebastian Reichel

Signed-off-by: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 .../bindings/npu/rockchip,rknn-core.yaml           | 152 +++++++++++++++++++++
 1 file changed, 152 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/npu/rockchip,rknn-core.yaml b/Documentation/devicetree/bindings/npu/rockchip,rknn-core.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..e8d0afe4a7d1c4f166cf13a9f4aa7c1901362a3f
--- /dev/null
+++ b/Documentation/devicetree/bindings/npu/rockchip,rknn-core.yaml
@@ -0,0 +1,152 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/npu/rockchip,rknn-core.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Neural Processing Unit IP from Rockchip
+
+maintainers:
+  - Tomeu Vizoso <tomeu@tomeuvizoso.net>
+
+description:
+  Rockchip IP for accelerating inference of neural networks, based on NVIDIA's
+  open source NVDLA IP.
+
+properties:
+  $nodename:
+    pattern: '^npu-core@[a-f0-9]+$'
+
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - rockchip,rk3588-rknn-core-top
+          - const: rockchip,rknn-core-top
+      - items:
+          - enum:
+              - rockchip,rk3588-rknn-core
+          - const: rockchip,rknn-core
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+    maxItems: 4
+
+  clock-names:
+    items:
+      - const: aclk
+      - const: hclk
+      - const: npu
+      - const: pclk
+    minItems: 2
+
+  interrupts:
+    maxItems: 1
+
+  iommus:
+    maxItems: 1
+
+  npu-supply: true
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 2
+
+  reset-names:
+    items:
+      - const: srst_a
+      - const: srst_h
+
+  sram-supply: true
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - iommus
+  - npu-supply
+  - power-domains
+  - resets
+  - reset-names
+  - sram-supply
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rknn-core-top
+    then:
+      properties:
+        clocks:
+          minItems: 4
+
+        clock-names:
+          minItems: 4
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rknn-core
+    then:
+      properties:
+        clocks:
+          maxItems: 2
+        clock-names:
+          maxItems: 2
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/rk3588-power.h>
+    #include <dt-bindings/reset/rockchip,rk3588-cru.h>
+
+    bus {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      rknn_core_top: npu-core@fdab0000 {
+        compatible = "rockchip,rk3588-rknn-core-top", "rockchip,rknn-core-top";
+        reg = <0x0 0xfdab0000 0x0 0x9000>;
+        assigned-clocks = <&scmi_clk SCMI_CLK_NPU>;
+        assigned-clock-rates = <200000000>;
+        clocks = <&cru ACLK_NPU0>, <&cru HCLK_NPU0>,
+                 <&scmi_clk SCMI_CLK_NPU>, <&cru PCLK_NPU_ROOT>;
+        clock-names = "aclk", "hclk", "npu", "pclk";
+        interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH 0>;
+        iommus = <&rknn_mmu_top>;
+        npu-supply = <&vdd_npu_s0>;
+        power-domains = <&power RK3588_PD_NPUTOP>;
+        resets = <&cru SRST_A_RKNN0>, <&cru SRST_H_RKNN0>;
+        reset-names = "srst_a", "srst_h";
+        sram-supply = <&vdd_npu_mem_s0>;
+      };
+
+      rknn_core_1: npu-core@fdac0000 {
+        compatible = "rockchip,rk3588-rknn-core", "rockchip,rknn-core";
+        reg = <0x0 0xfdac0000 0x0 0x9000>;
+        clocks = <&cru ACLK_NPU1>, <&cru HCLK_NPU1>;
+        clock-names = "aclk", "hclk";
+        interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH 0>;
+        iommus = <&rknn_mmu_1>;
+        npu-supply = <&vdd_npu_s0>;
+        power-domains = <&power RK3588_PD_NPU1>;
+        resets = <&cru SRST_A_RKNN1>, <&cru SRST_H_RKNN1>;
+        reset-names = "srst_a", "srst_h";
+        sram-supply = <&vdd_npu_mem_s0>;
+      };
+    };
+...