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[90.63.244.31]) by smtp.gmail.com with ESMTPSA id j37sm1556962wms.39.2021.08.19.08.12.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Aug 2021 08:12:03 -0700 (PDT) From: Alexandre Bailon To: ohad@wizery.com, bjorn.andersson@linaro.org, mathieu.poirier@linaro.org, robh+dt@kernel.org Cc: matthias.bgg@gmail.com, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, stephane.leprovost@mediatek.com, gpain@baylibre.com, khilman@baylibre.com, Alexandre Bailon Subject: [PATCH v3 1/4] dt bindings: remoteproc: Add bindings for MT8183 APU Date: Thu, 19 Aug 2021 17:13:37 +0200 Message-Id: <20210819151340.741565-2-abailon@baylibre.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210819151340.741565-1-abailon@baylibre.com> References: <20210819151340.741565-1-abailon@baylibre.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This adds dt bindings for the APU present in the MT8183. Signed-off-by: Alexandre Bailon --- .../bindings/remoteproc/mtk,apu.yaml | 118 ++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml new file mode 100644 index 0000000000000..d5da6be66610c --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml @@ -0,0 +1,118 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 + +--- +$id: "http://devicetree.org/schemas/remoteproc/mtk,apu.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: MT8183 AI Processor Unit (APU) a.k.a. Vision Processor Unit (VPU) + +description: + This document defines the binding for the APU, a co-processor that could + offload the CPU for machine learning and neural network. + +maintainers: + - Alexandre Bailon + +properties: + compatible: + const: mediatek,mt8183-apu + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + description: + Three clocks are expected for AXI, IPU and JTAG. + The JTAG clock seems to be required to run the DSP, + even when JTAG is not in use." + maxItems: 3 + + clock-names: + items: + - const: axi + - const: ipu + - const: jtag + + iommus: + maxItems: 3 + + memory-region: + maxItems: 1 + + power-domains: + maxItems: 1 + + pinctrl: + description: pinctrl handles, required to configure pins for JTAG. + + pinctrl-names: + items: + - const: jtag + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - iommus + - memory-region + - power-domains + +additionalProperties: false + +examples: + - | + #include + #include + #include + #include + + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + vdev0vring0: vdev0vring0 { + compatible = "shared-dma-pool"; + size = <0 0x00008000>; + no-map; + }; + + vdev0vring1: vdev0vring1 { + compatible = "shared-dma-pool"; + size = <0 0x00008000>; + no-map; + }; + + vdev0buffer: vdev0buffer { + compatible = "shared-dma-pool"; + size = <0 0x00100000>; + no-map; + }; + }; + + apu0: apu@19100000 { + compatible = "mediatek,mt8183-apu"; + reg = <0x19180000 0x14000>; + interrupts = ; + + iommus = <&iommu M4U_PORT_IMG_IPUO>, + <&iommu M4U_PORT_IMG_IPU3O>, + <&iommu M4U_PORT_IMG_IPUI>; + + clocks = <&ipu_core0 CLK_IPU_CORE0_AXI>, + <&ipu_core0 CLK_IPU_CORE0_IPU>, + <&ipu_core0 CLK_IPU_CORE0_JTAG>; + + clock-names = "axi", "ipu", "jtag"; + + power-domains = <&scpsys MT8183_POWER_DOMAIN_VPU_CORE0>; + memory-region = <&vdev0buffer>, <&vdev0vring0>, <&vdev0vring1>; + memory-region-names = "vdev0buffer", "vdev0vring0", "vdev0vring1"; + }; +...