Am Mittwoch, 4. Juni 2025, 09:57:14 Mitteleuropäische Sommerzeit schrieb Tomeu Vizoso: > 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 > > v3: > - Split register block in its constituent subblocks, and only require > the ones that the kernel would ever use (Nicolas Frattaroli) > - Group supplies (Rob Herring) > - Explain the way in which the top core is special (Rob Herring) > > v4: > - Change required node name to npu@ (Rob Herring and Krzysztof Kozlowski) > - Remove unneeded items: (Krzysztof Kozlowski) > - Fix use of minItems/maxItems (Krzysztof Kozlowski) > - Add reg-names to list of required properties (Krzysztof Kozlowski) > - Fix example (Krzysztof Kozlowski) > > v5: > - Rename file to rockchip,rk3588-rknn-core.yaml (Krzysztof Kozlowski) > - Streamline compatible property (Krzysztof Kozlowski) > > v6: > - Remove mention to NVDLA, as the hardware is only incidentally related > (Kever Yang) > - Mark pclk and npu clocks as required by all clocks (Rob Herring) > > Signed-off-by: Sebastian Reichel <sebastian.reic...@collabora.com> > Signed-off-by: Tomeu Vizoso <to...@tomeuvizoso.net> > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlow...@linaro.org> > --- > .../bindings/npu/rockchip,rk3588-rknn-core.yaml | 144 > +++++++++++++++++++++ > 1 file changed, 144 insertions(+) > > diff --git > a/Documentation/devicetree/bindings/npu/rockchip,rk3588-rknn-core.yaml > b/Documentation/devicetree/bindings/npu/rockchip,rk3588-rknn-core.yaml > new file mode 100644 > index > 0000000000000000000000000000000000000000..9a5e9e213912d0997da2f6ae26189adf044dcc7b > --- /dev/null > +++ b/Documentation/devicetree/bindings/npu/rockchip,rk3588-rknn-core.yaml > @@ -0,0 +1,144 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/npu/rockchip,rk3588-rknn-core.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Neural Processing Unit IP from Rockchip > + > +maintainers: > + - Tomeu Vizoso <to...@tomeuvizoso.net> > + > +description: > + Rockchip IP for accelerating inference of neural networks. > + > + There is to be a node per each core in the NPU. In Rockchip's design there > + will be one core that is special and needs to be powered on before any of > the > + other cores can be used. This special core is called the top core and > should > + have the compatible string that corresponds to top cores. > + > +properties: > + $nodename: > + pattern: '^npu@[a-f0-9]+$' > + > + compatible: > + enum: > + - rockchip,rk3588-rknn-core-top > + - rockchip,rk3588-rknn-core > + > + reg: > + maxItems: 3 > + > + reg-names: > + items: > + - const: pc > + - const: cna > + - const: core > + > + clocks: > + maxItems: 4 > + > + clock-names: > + items: > + - const: aclk > + - const: hclk > + - const: npu > + - const: pclk > + > + 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 > + - reg-names > + - clocks > + - clock-names > + - interrupts > + - iommus > + - power-domains > + - resets > + - reset-names > + - npu-supply > + - sram-supply > + > +allOf: > + - if: > + properties: > + compatible: > + contains: > + enum: > + - rockchip,rknn-core-top
should be rockchip,rk3588-rknn-core-top I think > + then: > + properties: > + clocks: > + minItems: 4 > + > + clock-names: > + minItems: 4 > + - if: > + properties: > + compatible: > + contains: > + enum: > + - rockchip,rknn-core should be rockchip,rk3588-rknn-core > + then: > + properties: > + clocks: > + maxItems: 2 > + clock-names: > + maxItems: 2 Heiko
