lkml.org 
[lkml]   [2022]   [Mar]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 1/7] dt bindings: remoteproc: Add bindings for the MT8183 APU
Date
This adds dt bindings for the APU present in the MT8183.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
.../bindings/remoteproc/mtk,apu.yaml | 122 ++++++++++++++++++
1 file changed, 122 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 000000000000..b640aa96d678
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
@@ -0,0 +1,122 @@
+# 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: Mediatek AI Processor Unit (APU)
+
+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 <abailon@bayLibre.com>
+
+properties:
+ compatible:
+ const: mediatek,mt8183-apu
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 3
+ maxItems: 3
+
+ clock-names:
+ items:
+ - const: axi
+ - const: ipu
+ - const: jtag
+
+ iommus:
+ maxItems: 3
+
+ memory-region:
+ maxItems: 3
+
+ memory-region-da:
+ description:
+ Array of APU device address. This is used to map the APU device address
+ to a physical address.
+ maxItems: 3
+
+ 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
+ - memory-region-da
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/memory/mt8183-larb-port.h>
+ #include <dt-bindings/power/mt8183-power.h>
+
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ vdev0buffer: vdev0buffer@52900000 {
+ compatible = "shared-dma-pool";
+ reg = <0x52900000 0x4000>;
+ no-map;
+ };
+
+ vdev0vring0: vdev0vring0@52904000 {
+ compatible = "shared-dma-pool";
+ reg = <0x52904000 0x2000>;
+ no-map;
+ };
+
+ vdev0vring1: vdev0vring1@52906000 {
+ compatible = "shared-dma-pool";
+ reg = <0x52906000 0x2000>;
+ no-map;
+ };
+ };
+
+ apu0: apu@19100000 {
+ compatible = "mediatek,mt8183-apu";
+ reg = <0x19180000 0x14000>;
+ interrupts = <GIC_SPI 292 IRQ_TYPE_LEVEL_LOW>;
+
+ 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-da = <0x6fff8000>, <0x6fffc000>, <0x6fffe000>;
+ };
+...
--
2.34.1
\
 
 \ /
  Last update: 2022-03-04 17:15    [W:0.584 / U:0.036 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site