Commit 3edac2f8 authored by Nikita Kiryanov's avatar Nikita Kiryanov Committed by Tony Lindgren
Browse files

ARM: dts: am437x: cm-t43: add NAND support 



One of the CompuLab cm-t43 configurations comes with on-board NAND flash as
primary storage. It is partitioned into kernel, dtb, and rootfs partitions.
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 81fb61fc

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

+79 −0
Original line number Diff line number Diff line
@@ -53,6 +53,81 @@ AM4372_IOPAD(0x958, PIN_OUTPUT | MUX_MODE0) /* spi0_d1.spi0_d1 */ 
			AM4372_IOPAD(0x95C, PIN_OUTPUT | MUX_MODE0) /* spi0_cs0.spi0_cs0 */

		>;

	};



	nand_flash_x8: nand_flash_x8 {

		pinctrl-single,pins = <

			AM4372_IOPAD(0x800, PIN_INPUT | PULL_DISABLE | MUX_MODE0)

			AM4372_IOPAD(0x804, PIN_INPUT | PULL_DISABLE | MUX_MODE0)

			AM4372_IOPAD(0x808, PIN_INPUT | PULL_DISABLE | MUX_MODE0)

			AM4372_IOPAD(0x80c, PIN_INPUT | PULL_DISABLE | MUX_MODE0)

			AM4372_IOPAD(0x810, PIN_INPUT | PULL_DISABLE | MUX_MODE0)

			AM4372_IOPAD(0x814, PIN_INPUT | PULL_DISABLE | MUX_MODE0)

			AM4372_IOPAD(0x818, PIN_INPUT | PULL_DISABLE | MUX_MODE0)

			AM4372_IOPAD(0x81c, PIN_INPUT | PULL_DISABLE | MUX_MODE0)

			AM4372_IOPAD(0x870, PIN_INPUT_PULLUP  | MUX_MODE0)

			AM4372_IOPAD(0x874, PIN_OUTPUT_PULLUP | MUX_MODE0)

			AM4372_IOPAD(0x87c, PIN_OUTPUT_PULLUP | MUX_MODE0)

			AM4372_IOPAD(0x898, PIN_OUTPUT_PULLDOWN | MUX_MODE0)

			AM4372_IOPAD(0x894, PIN_OUTPUT_PULLDOWN | MUX_MODE0)

			AM4372_IOPAD(0x890, PIN_OUTPUT_PULLDOWN | MUX_MODE0)

			AM4372_IOPAD(0x89c, PIN_OUTPUT_PULLDOWN | MUX_MODE0)

		>;

	};

};



&gpmc {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&nand_flash_x8>;

	ranges = <0 0 0x08000000 0x1000000>;

	nand@0,0 {

		reg = <0 0 0>;

		ti,nand-ecc-opt = "bch8";

		ti,elm-id = <&elm>;



		nand-bus-width = <8>;

		gpmc,device-width = <1>;

		gpmc,sync-clk-ps = <0>;

		gpmc,cs-on-ns = <0>;

		gpmc,cs-rd-off-ns = <44>;

		gpmc,cs-wr-off-ns = <44>;

		gpmc,adv-on-ns = <6>;

		gpmc,adv-rd-off-ns = <34>;

		gpmc,adv-wr-off-ns = <44>;

		gpmc,we-on-ns = <0>;

		gpmc,we-off-ns = <40>;

		gpmc,oe-on-ns = <0>;

		gpmc,oe-off-ns = <54>;

		gpmc,access-ns = <64>;

		gpmc,rd-cycle-ns = <82>;

		gpmc,wr-cycle-ns = <82>;

		gpmc,wait-on-read = "true";

		gpmc,wait-on-write = "true";

		gpmc,bus-turnaround-ns = <0>;

		gpmc,cycle2cycle-delay-ns = <0>;

		gpmc,clk-activation-ns = <0>;

		gpmc,wait-monitoring-ns = <0>;

		gpmc,wr-access-ns = <40>;

		gpmc,wr-data-mux-bus-ns = <0>;



		gpmc,wait-pin = <0>;



		#address-cells = <1>;

		#size-cells = <1>;

		/* MTD partition table */

		partition@0 {

			label = "kernel";

			reg = <0x0 0x00980000>;

		};

		partition@980000 {

			label = "dtb";

			reg = <0x00980000 0x00080000>;

		};

		partition@a00000 {

			label = "rootfs";

			reg = <0x00a00000 0x0>;

		};

	};

};



&i2c0 {
@@ -186,6 +261,10 @@ partition@100000 { 
	};

};



&elm {

	status = "okay";

};



&uart0 {

	status = "okay";

};