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Diffstat (limited to 'Documentation/devicetree/bindings/dma/fsl-qdma.txt')
-rw-r--r-- | Documentation/devicetree/bindings/dma/fsl-qdma.txt | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/Documentation/devicetree/bindings/dma/fsl-qdma.txt b/Documentation/devicetree/bindings/dma/fsl-qdma.txt deleted file mode 100644 index da371c4d406c..000000000000 --- a/Documentation/devicetree/bindings/dma/fsl-qdma.txt +++ /dev/null @@ -1,58 +0,0 @@ -NXP Layerscape SoC qDMA Controller -================================== - -This device follows the generic DMA bindings defined in dma/dma.txt. - -Required properties: - -- compatible: Must be one of - "fsl,ls1021a-qdma": for LS1021A Board - "fsl,ls1028a-qdma": for LS1028A Board - "fsl,ls1043a-qdma": for ls1043A Board - "fsl,ls1046a-qdma": for ls1046A Board -- reg: Should contain the register's base address and length. -- interrupts: Should contain a reference to the interrupt used by this - device. -- interrupt-names: Should contain interrupt names: - "qdma-queue0": the block0 interrupt - "qdma-queue1": the block1 interrupt - "qdma-queue2": the block2 interrupt - "qdma-queue3": the block3 interrupt - "qdma-error": the error interrupt -- fsl,dma-queues: Should contain number of queues supported. -- dma-channels: Number of DMA channels supported -- block-number: the virtual block number -- block-offset: the offset of different virtual block -- status-sizes: status queue size of per virtual block -- queue-sizes: command queue size of per virtual block, the size number - based on queues - -Optional properties: - -- dma-channels: Number of DMA channels supported by the controller. -- big-endian: If present registers and hardware scatter/gather descriptors - of the qDMA are implemented in big endian mode, otherwise in little - mode. - -Examples: - - qdma: dma-controller@8390000 { - compatible = "fsl,ls1021a-qdma"; - reg = <0x0 0x8388000 0x0 0x1000>, /* Controller regs */ - <0x0 0x8389000 0x0 0x1000>, /* Status regs */ - <0x0 0x838a000 0x0 0x2000>; /* Block regs */ - interrupts = <GIC_SPI 185 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>; - interrupt-names = "qdma-error", - "qdma-queue0", "qdma-queue1"; - dma-channels = <8>; - block-number = <2>; - block-offset = <0x1000>; - fsl,dma-queues = <2>; - status-sizes = <64>; - queue-sizes = <64 64>; - big-endian; - }; - -DMA clients must use the format described in dma/dma.txt file. |