This adds a SPI controller to the Microchip Sparx5 SoC, as well as the mmio-mux that is required to select the right SPI interface for a given SPI device.
Signed-off-by: Lars Povlsen <[email protected]> --- arch/arm64/boot/dts/microchip/sparx5.dtsi | 27 ++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi b/arch/arm64/boot/dts/microchip/sparx5.dtsi index 7e811e24f0e99..2169746703dfb 100644 --- a/arch/arm64/boot/dts/microchip/sparx5.dtsi +++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi @@ -14,6 +14,7 @@ / { #size-cells = <1>; aliases { + spi0 = &spi0; serial0 = &uart0; serial1 = &uart1; }; @@ -119,8 +120,19 @@ gic: interrupt-controller@600300000 { }; cpu_ctrl: syscon@600000000 { - compatible = "microchip,sparx5-cpu-syscon", "syscon"; + compatible = "microchip,sparx5-cpu-syscon", "syscon", + "simple-mfd"; reg = <0x6 0x00000000 0xd0>; + mux: mux-controller { + compatible = "mmio-mux"; + #mux-control-cells = <0>; + /* + * SI_OWNER and SI2_OWNER in GENERAL_CTRL + * SPI: value 9 - (SIMC,SIBM) = 0b1001 + * SPI2: value 6 - (SIBM,SIMC) = 0b0110 + */ + mux-reg-masks = <0x88 0xf0>; + }; }; reset@611010008 { @@ -155,6 +167,19 @@ uart1: serial@600102000 { status = "disabled"; }; + spi0: spi@600104000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "microchip,sparx5-spi"; + reg = <0x6 0x00104000 0x40>; + num-cs = <16>; + reg-io-width = <4>; + reg-shift = <2>; + clocks = <&ahb_clk>; + interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + timer1: timer@600105000 { compatible = "snps,dw-apb-timer"; reg = <0x6 0x00105000 0x1000>; -- 2.27.0
