ARM: dts: vf610-bk4: Provide support for reading ID code from MVB device (cf91ce96) · Commits · 戴 / test

The procedure to read this ID value is as follows: rmmod spi_fsl_dspi insmod spi-gpio.ko echo 504 > /sys/class/gpio/export cat /sys/class/gpio/gpio504/value ... echo 511 > /sys/class/gpio/export cat /sys/class/gpio/gpio511/value rmmod spi-gpio.ko insmod spi_fsl_dspi Signed-off-by:

Lukasz Majewski <lukma@denx.de> Signed-off-by:

Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/vf610-bk4.dts

+31 −0

Original line number	Diff line number	Diff line
		@@ -60,6 +60,29 @@
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		};

		spi-gpio {
		compatible = "spi-gpio";
		pinctrl-0 = <&pinctrl_gpio_spi>;
		pinctrl-names = "default";
		#address-cells = <1>;
		#size-cells = <0>;
		/* PTD12 ->RPIO[91] */
		sck-gpios = <&gpio2 27 GPIO_ACTIVE_LOW>;
		/* PTD10 ->RPIO[89] */
		miso-gpios = <&gpio2 25 GPIO_ACTIVE_HIGH>;
		num-chipselects = <0>;

		gpio@0 {
		compatible = "pisosr-gpio";
		reg = <0>;
		gpio-controller;
		#gpio-cells = <2>;
		/* PTB18 -> RGPIO[40] */
		load-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
		spi-max-frequency = <100000>;
		};
		};
		};

		&adc0 {
		@@ -431,6 +454,14 @@
		>;
		};

		pinctrl_gpio_spi: pinctrl-gpio-spi {
		fsl,pins = <
		VF610_PAD_PTB18__GPIO_40 0x1183
		VF610_PAD_PTD10__GPIO_89 0x1183
		VF610_PAD_PTD12__GPIO_91 0x1183
		>;
		};

		pinctrl_i2c2: i2c2grp {
		fsl,pins = <
		VF610_PAD_PTA22__I2C2_SCL 0x34df

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