| Message ID | 20170829202652.5476-2-stefan.bruens@rwth-aachen.de |
|---|---|
| State | New |
| Headers | show |
| Series | Enable SPI on A64/Pine64 | expand |
Hi Stefan, On Tue, Aug 29, 2017 at 10:26:51PM +0200, Stefan Brüns wrote: > The A64 SPI controllers are register compatible to the h3/h5 SPI > controllers. > > The A64 has two SPI controllers, each with a single chip select. > The handles for the DMA channels (23/24 for SPI0/SPI1) are omitted, > as the A64 DMA controller node is currently missing. > > Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> > --- > arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 40 +++++++++++++++++++++++++++ > 1 file changed, 40 insertions(+) > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > index bd0f33b77f57..373cd14f0206 100644 > --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > @@ -325,6 +325,16 @@ > drive-strength = <40>; > }; > > + spi0_pins: spi0 { > + pins = "PC0", "PC1", "PC2", "PC3"; > + function = "spi0"; > + }; > + > + spi1_pins: spi1 { > + pins = "PD0", "PD1", "PD2", "PD3"; > + function = "spi1"; > + }; > + > uart0_pins_a: uart0@0 { > pins = "PB8", "PB9"; > function = "uart0"; > @@ -527,5 +537,35 @@ > #address-cells = <1>; > #size-cells = <0>; > }; > + > + 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"; > + pinctrl-names = "default"; > + pinctrl-0 = <&spi0_pins>; > + resets = <&ccu RST_BUS_SPI0>; > + status = "disabled"; > + num-cs = <1>; > + #address-cells = <1>; > + #size-cells = <0>; > + }; > + > + spi1: spi@01c69000 { > + compatible = "allwinner,sun8i-h3-spi"; > + reg = <0x01c69000 0x1000>; > + interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>; > + clocks = <&ccu CLK_BUS_SPI1>, <&ccu CLK_SPI1>; > + clock-names = "ahb", "mod"; > + pinctrl-names = "default"; > + pinctrl-0 = <&spi1_pins>; > + resets = <&ccu RST_BUS_SPI1>; > + status = "disabled"; > + num-cs = <1>; > + #address-cells = <1>; > + #size-cells = <0>; > + }; Those nodes are ordered by ascending physical base address, so they belong a bit above were you placed them. Maxime
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index bd0f33b77f57..373cd14f0206 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -325,6 +325,16 @@ drive-strength = <40>; }; + spi0_pins: spi0 { + pins = "PC0", "PC1", "PC2", "PC3"; + function = "spi0"; + }; + + spi1_pins: spi1 { + pins = "PD0", "PD1", "PD2", "PD3"; + function = "spi1"; + }; + uart0_pins_a: uart0@0 { pins = "PB8", "PB9"; function = "uart0"; @@ -527,5 +537,35 @@ #address-cells = <1>; #size-cells = <0>; }; + + 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"; + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins>; + resets = <&ccu RST_BUS_SPI0>; + status = "disabled"; + num-cs = <1>; + #address-cells = <1>; + #size-cells = <0>; + }; + + spi1: spi@01c69000 { + compatible = "allwinner,sun8i-h3-spi"; + reg = <0x01c69000 0x1000>; + interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_SPI1>, <&ccu CLK_SPI1>; + clock-names = "ahb", "mod"; + pinctrl-names = "default"; + pinctrl-0 = <&spi1_pins>; + resets = <&ccu RST_BUS_SPI1>; + status = "disabled"; + num-cs = <1>; + #address-cells = <1>; + #size-cells = <0>; + }; }; };
The A64 SPI controllers are register compatible to the h3/h5 SPI controllers. The A64 has two SPI controllers, each with a single chip select. The handles for the DMA channels (23/24 for SPI0/SPI1) are omitted, as the A64 DMA controller node is currently missing. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 40 +++++++++++++++++++++++++++ 1 file changed, 40 insertions(+)