diff options
| author | Long Cheng <long.cheng@mediatek.com> | 2018-12-05 16:42:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-05 11:02:39 +0100 |
| commit | 89212465c194853becaa17f82dfc1d7d30b56d5e (patch) | |
| tree | ab983a06f0609d9d144f6267d83263b8c15a2bcb /Documentation/devicetree/bindings/dma | |
| parent | eca42d4cf3c591c36312c52707e0a712e0c7256a (diff) | |
dt-bindings: dma: uart: add uart dma bindings
add uart dma bindings
Signed-off-by: Long Cheng <long.cheng@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/dma')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/8250_mtk_dma.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/8250_mtk_dma.txt b/Documentation/devicetree/bindings/dma/8250_mtk_dma.txt new file mode 100644 index 000000000000..3fe0961bcf64 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/8250_mtk_dma.txt @@ -0,0 +1,33 @@ +* Mediatek UART APDMA Controller + +Required properties: +- compatible should contain: + * "mediatek,mt2712-uart-dma" for MT2712 compatible APDMA + * "mediatek,mt6577-uart-dma" for MT6577 and all of the above + +- reg: The base address of the APDMA register bank. + +- interrupts: A single interrupt specifier. + +- clocks : Must contain an entry for each entry in clock-names. + See ../clocks/clock-bindings.txt for details. +- clock-names: The APDMA clock for register accesses + +Examples: + + apdma: dma-controller@11000380 { + compatible = "mediatek,mt2712-uart-dma"; + reg = <0 0x11000380 0 0x400>; + interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_LOW>, + <GIC_SPI 64 IRQ_TYPE_LEVEL_LOW>, + <GIC_SPI 65 IRQ_TYPE_LEVEL_LOW>, + <GIC_SPI 66 IRQ_TYPE_LEVEL_LOW>, + <GIC_SPI 67 IRQ_TYPE_LEVEL_LOW>, + <GIC_SPI 68 IRQ_TYPE_LEVEL_LOW>, + <GIC_SPI 69 IRQ_TYPE_LEVEL_LOW>, + <GIC_SPI 70 IRQ_TYPE_LEVEL_LOW>; + clocks = <&pericfg CLK_PERI_AP_DMA>; + clock-names = "apdma"; + #dma-cells = <1>; + }; + |