Commit 81fb61fc authored by Nikita Kiryanov's avatar Nikita Kiryanov Committed by Tony Lindgren
Browse files

ARM: dts: am437x: cm-t43: add spi-flash support 



CM-T43 has an on-board 2MB SPI-flash which stores U-Boot and the U-Boot
environment. Add it to the device tree.

Signed-off-by: default avatarNikita Kiryanov <nikita@compulab.co.il>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benoit Cousson <bcousson@baylibre.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 4bbbd23c

arch/arm/boot/dts/am437x-cm-t43.dts

+40 −0
Original line number Diff line number Diff line
@@ -44,6 +44,15 @@ AM4372_IOPAD(0x988, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_sda.i 
			AM4372_IOPAD(0x98c, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)  /* i2c0_scl.i2c0_scl */

		>;

	};



	spi0_pins: pinmux_spi0_pins {

		pinctrl-single,pins = <

			AM4372_IOPAD(0x950, PIN_INPUT | MUX_MODE0) /* spi0_sclk.spi0_sclk */

			AM4372_IOPAD(0x954, PIN_INPUT | MUX_MODE0) /* spi0_d0.spi0_d0 */

			AM4372_IOPAD(0x958, PIN_OUTPUT | MUX_MODE0) /* spi0_d1.spi0_d1 */

			AM4372_IOPAD(0x95C, PIN_OUTPUT | MUX_MODE0) /* spi0_cs0.spi0_cs0 */

		>;

	};

};



&i2c0 {
@@ -146,6 +155,37 @@ &gpio5 { 
	status = "okay";

};



&spi0 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&spi0_pins>;

	dmas = <&edma 16

		&edma 17>;

	dma-names = "tx0", "rx0";



	flash: w25q64cvzpig@0 {

		#address-cells = <1>;

		#size-cells = <1>;

		compatible = "jedec,spi-nor";

		reg = <0>;

		spi-max-frequency = <20000000>;

		partition@0 {

			label = "uboot";

			reg = <0x0 0xc0000>;

		};



		partition@c0000 {

			label = "uboot environment";

			reg = <0xc0000 0x40000>;

		};



		partition@100000 {

			label = "reserved";

			reg = <0x100000 0x100000>;

		};

	};

};



&uart0 {

	status = "okay";

};