diff options
Diffstat (limited to 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/spi-sun6i.txt | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-sun6i.txt b/Documentation/devicetree/bindings/spi/spi-sun6i.txt index 21de73db6a05..2ec99b86b622 100644 --- a/Documentation/devicetree/bindings/spi/spi-sun6i.txt +++ b/Documentation/devicetree/bindings/spi/spi-sun6i.txt @@ -1,7 +1,7 @@ -Allwinner A31 SPI controller +Allwinner A31/H3 SPI controller Required properties: -- compatible: Should be "allwinner,sun6i-a31-spi". +- compatible: Should be "allwinner,sun6i-a31-spi" or "allwinner,sun8i-h3-spi". - reg: Should contain register location and length. - interrupts: Should contain interrupt. - clocks: phandle to the clocks feeding the SPI controller. Two are @@ -12,6 +12,11 @@ Required properties: - resets: phandle to the reset controller asserting this device in reset +Optional properties: +- dmas: DMA specifiers for rx and tx dma. See the DMA client binding, + Documentation/devicetree/bindings/dma/dma.txt +- dma-names: DMA request names should include "rx" and "tx" if present. + Example: spi1: spi@01c69000 { @@ -22,3 +27,19 @@ spi1: spi@01c69000 { clock-names = "ahb", "mod"; resets = <&ahb1_rst 21>; }; + +spi0: spi@01c68000 { + compatible = "allwinner,sun8i-h3-spi"; + reg = <0x01c68000 0x1000>; + interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>; + clock-names = "ahb", "mod"; + dmas = <&dma 23>, <&dma 23>; + dma-names = "rx", "tx"; + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins>; + resets = <&ccu RST_BUS_SPI0>; + status = "disabled"; + #address-cells = <1>; + #size-cells = <0>; +}; |