arm64: dts: khadas-vim3: add SPIFC controller node (0e1610e7) · Commits · 戴 / test

Add disabled SPIFC controller node with instruction on how to enable it while lowering capabilities of the eMMC controller from 8bits bus width to 4bits bus width, it's data pins 4 to 7 being shared with the SPI NOR controller pins. Signed-off-by:

Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:

Kevin Hilman <khilman@baylibre.com> Link: https://lore.kernel.org/r/20200313090713.15147-4-narmstrong@baylibre.com

arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi

+20 −0

Original line number	Diff line number	Diff line
		@@ -326,6 +326,26 @@
		vqmmc-supply = <&emmc_1v8>;
		};

		/*
		* EMMC_D4, EMMC_D5, EMMC_D6 and EMMC_D7 pins are shared between SPI NOR CS
		* and eMMC Data 4 to 7 pins.
		* Replace emmc_data_8b_pins to emmc_data_4b_pins from sd_emmc_c pinctrl-0,
		* and change bus-width to 4 then spifc can be enabled.
		*/
		&spifc {
		status = "disabled";
		pinctrl-0 = <&nor_pins>;
		pinctrl-names = "default";

		w25q32: spi-flash@0 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "winbond,w25q128fw", "jedec,spi-nor";
		reg = <0>;
		spi-max-frequency = <104000000>;
		};
		};

		&uart_A {
		status = "okay";
		pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;

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