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-Nuvoton NPCM Peripheral Serial Peripheral Interface(PSPI) controller driver
-
-Nuvoton NPCM7xx SOC support two PSPI channels.
-
-Required properties:
- - compatible : "nuvoton,npcm750-pspi" for Poleg NPCM7XX.
- "nuvoton,npcm845-pspi" for Arbel NPCM8XX.
- - #address-cells : should be 1. see spi-bus.txt
- - #size-cells : should be 0. see spi-bus.txt
- - specifies physical base address and size of the register.
- - interrupts : contain PSPI interrupt.
- - clocks : phandle of PSPI reference clock.
- - clock-names: Should be "clk_apb5".
- - pinctrl-names : a pinctrl state named "default" must be defined.
- - pinctrl-0 : phandle referencing pin configuration of the device.
- - resets : phandle to the reset control for this device.
- - cs-gpios: Specifies the gpio pins to be used for chipselects.
- See: Documentation/devicetree/bindings/spi/spi-bus.txt
-
-Optional properties:
-- clock-frequency : Input clock frequency to the PSPI block in Hz.
- Default is 25000000 Hz.
-
-spi0: spi@f0200000 {
- compatible = "nuvoton,npcm750-pspi";
- reg = <0xf0200000 0x1000>;
- pinctrl-names = "default";
- pinctrl-0 = <&pspi1_pins>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clk NPCM7XX_CLK_APB5>;
- clock-names = "clk_apb5";
- resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_PSPI1>
- cs-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
-};