diff options
81 files changed, 5770 insertions, 775 deletions
diff --git a/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt b/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt new file mode 100644 index 000000000000..d3058768b23d --- /dev/null +++ b/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt | |||
| @@ -0,0 +1,47 @@ | |||
| 1 | Applied Micro X-Gene SoC DMA nodes | ||
| 2 | |||
| 3 | DMA nodes are defined to describe on-chip DMA interfaces in | ||
| 4 | APM X-Gene SoC. | ||
| 5 | |||
| 6 | Required properties for DMA interfaces: | ||
| 7 | - compatible: Should be "apm,xgene-dma". | ||
| 8 | - device_type: set to "dma". | ||
| 9 | - reg: Address and length of the register set for the device. | ||
| 10 | It contains the information of registers in the following order: | ||
| 11 | 1st - DMA control and status register address space. | ||
| 12 | 2nd - Descriptor ring control and status register address space. | ||
| 13 | 3rd - Descriptor ring command register address space. | ||
| 14 | 4th - Soc efuse register address space. | ||
| 15 | - interrupts: DMA has 5 interrupts sources. 1st interrupt is | ||
| 16 | DMA error reporting interrupt. 2nd, 3rd, 4th and 5th interrupts | ||
| 17 | are completion interrupts for each DMA channels. | ||
| 18 | - clocks: Reference to the clock entry. | ||
| 19 | |||
| 20 | Optional properties: | ||
| 21 | - dma-coherent : Present if dma operations are coherent | ||
| 22 | |||
| 23 | Example: | ||
| 24 | dmaclk: dmaclk@1f27c000 { | ||
| 25 | compatible = "apm,xgene-device-clock"; | ||
| 26 | #clock-cells = <1>; | ||
| 27 | clocks = <&socplldiv2 0>; | ||
| 28 | reg = <0x0 0x1f27c000 0x0 0x1000>; | ||
| 29 | reg-names = "csr-reg"; | ||
| 30 | clock-output-names = "dmaclk"; | ||
| 31 | }; | ||
| 32 | |||
| 33 | dma: dma@1f270000 { | ||
| 34 | compatible = "apm,xgene-storm-dma"; | ||
| 35 | device_type = "dma"; | ||
| 36 | reg = <0x0 0x1f270000 0x0 0x10000>, | ||
| 37 | <0x0 0x1f200000 0x0 0x10000>, | ||
| 38 | <0x0 0x1b008000 0x0 0x2000>, | ||
| 39 | <0x0 0x1054a000 0x0 0x100>; | ||
| 40 | interrupts = <0x0 0x82 0x4>, | ||
| 41 | <0x0 0xb8 0x4>, | ||
| 42 | <0x0 0xb9 0x4>, | ||
| 43 | <0x0 0xba 0x4>, | ||
| 44 | <0x0 0xbb 0x4>; | ||
| 45 | dma-coherent; | ||
| 46 | clocks = <&dmaclk 0>; | ||
| 47 | }; | ||
diff --git a/Documentation/devicetree/bindings/dma/jz4780-dma.txt b/Documentation/devicetree/bindings/dma/jz4780-dma.txt new file mode 100644 index 000000000000..f25feee62b15 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/jz4780-dma.txt | |||
| @@ -0,0 +1,56 @@ | |||
| 1 | * Ingenic JZ4780 DMA Controller | ||
| 2 | |||
| 3 | Required properties: | ||
| 4 | |||
| 5 | - compatible: Should be "ingenic,jz4780-dma" | ||
| 6 | - reg: Should contain the DMA controller registers location and length. | ||
| 7 | - interrupts: Should contain the interrupt specifier of the DMA controller. | ||
| 8 | - interrupt-parent: Should be the phandle of the interrupt controller that | ||
| 9 | - clocks: Should contain a clock specifier for the JZ4780 PDMA clock. | ||
| 10 | - #dma-cells: Must be <2>. Number of integer cells in the dmas property of | ||
| 11 | DMA clients (see below). | ||
| 12 | |||
| 13 | Optional properties: | ||
| 14 | |||
| 15 | - ingenic,reserved-channels: Bitmask of channels to reserve for devices that | ||
| 16 | need a specific channel. These channels will only be assigned when explicitly | ||
| 17 | requested by a client. The primary use for this is channels 0 and 1, which | ||
| 18 | can be configured to have special behaviour for NAND/BCH when using | ||
| 19 | programmable firmware. | ||
| 20 | |||
| 21 | Example: | ||
| 22 | |||
| 23 | dma: dma@13420000 { | ||
| 24 | compatible = "ingenic,jz4780-dma"; | ||
| 25 | reg = <0x13420000 0x10000>; | ||
| 26 | |||
| 27 | interrupt-parent = <&intc>; | ||
| 28 | interrupts = <10>; | ||
| 29 | |||
