From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../devicetree/bindings/dma/snps,dw-axi-dmac.yaml  | 134 +++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml

(limited to 'Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml')

diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
new file mode 100644
index 000000000..67aa7bb6d
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/snps,dw-axi-dmac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DesignWare AXI DMA Controller
+
+maintainers:
+  - Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+  - Jee Heng Sia <jee.heng.sia@intel.com>
+
+description:
+  Synopsys DesignWare AXI DMA Controller DT Binding
+
+allOf:
+  - $ref: "dma-controller.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - snps,axi-dma-1.01a
+      - intel,kmb-axi-dma
+
+  reg:
+    minItems: 1
+    items:
+      - description: Address range of the DMAC registers
+      - description: Address range of the DMAC APB registers
+
+  reg-names:
+    items:
+      - const: axidma_ctrl_regs
+      - const: axidma_apb_regs
+
+  interrupts:
+    description:
+      If the IP-core synthesis parameter DMAX_INTR_IO_TYPE is set to 1, this
+      will be per-channel interrupts. Otherwise, this is a single combined IRQ
+      for all channels.
+    minItems: 1
+    maxItems: 8
+
+  clocks:
+    items:
+      - description: Bus Clock
+      - description: Module Clock
+
+  clock-names:
+    items:
+      - const: core-clk
+      - const: cfgr-clk
+
+  '#dma-cells':
+    const: 1
+
+  dma-channels:
+    minimum: 1
+    maximum: 8
+
+  resets:
+    maxItems: 1
+
+  snps,dma-masters:
+    description: |
+      Number of AXI masters supported by the hardware.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [1, 2]
+
+  snps,data-width:
+    description: |
+      AXI data width supported by hardware.
+      (0 - 8bits, 1 - 16bits, 2 - 32bits, ..., 6 - 512bits)
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3, 4, 5, 6]
+
+  snps,priority:
+    description: |
+      Channel priority specifier associated with the DMA channels.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 8
+
+  snps,block-size:
+    description: |
+      Channel block size specifier associated with the DMA channels.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 8
+
+  snps,axi-max-burst-len:
+    description: |
+      Restrict master AXI burst length by value specified in this property.
+      If this property is missing the maximum AXI burst length supported by
+      DMAC is used.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 1
+    maximum: 256
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - '#dma-cells'
+  - dma-channels
+  - snps,dma-masters
+  - snps,data-width
+  - snps,priority
+  - snps,block-size
+
+additionalProperties: false
+
+examples:
+  - |
+     #include <dt-bindings/interrupt-controller/arm-gic.h>
+     #include <dt-bindings/interrupt-controller/irq.h>
+     /* example with snps,dw-axi-dmac */
+     dmac: dma-controller@80000 {
+         compatible = "snps,axi-dma-1.01a";
+         reg = <0x80000 0x400>;
+         clocks = <&core_clk>, <&cfgr_clk>;
+         clock-names = "core-clk", "cfgr-clk";
+         interrupt-parent = <&intc>;
+         interrupts = <27>;
+         #dma-cells = <1>;
+         dma-channels = <4>;
+         snps,dma-masters = <2>;
+         snps,data-width = <3>;
+         snps,block-size = <4096 4096 4096 4096>;
+         snps,priority = <0 1 2 3>;
+         snps,axi-max-burst-len = <16>;
+     };
-- 
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