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Commit 01aa1a5c authored by Ladislav Michl's avatar Ladislav Michl Committed by Tony Lindgren
Browse files

ARM: dts: omap3-igep: OneNAND support 



Add OneNAND node for IGEP and leave it disabled by default. It is up
to bootloader to enable proper node. Timing just works, but values are
copied over from N900 as I was unable to find chip datasheet.

Signed-off-by: default avatarLadislav Michl <ladis@linux-mips.org>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent a5e743c4

arch/arm/boot/dts/omap3-igep.dtsi

+52 −0
Original line number Diff line number Diff line
@@ -37,6 +37,13 @@ 
};



&omap3_pmx_core {

	gpmc_pins: pinmux_gpmc_pins {

		pinctrl-single,pins = <

			/* OneNAND seems to require PIN_INPUT on clock. */

                        OMAP3_CORE1_IOPAD(0x20be, PIN_INPUT | MUX_MODE0)        /* gpmc_clk.gpmc_clk */

		>;

	};



	uart1_pins: pinmux_uart1_pins {

		pinctrl-single,pins = <

			OMAP3_CORE1_IOPAD(0x2182, PIN_INPUT | MUX_MODE0)	/* uart1_rx.uart1_rx */
@@ -98,6 +105,9 @@ 
};



&gpmc {

	pinctrl-names = "default";

	pinctrl-0 = <&gpmc_pins>;



	nand@0,0 {

		compatible = "ti,omap2-nand";

		reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
@@ -126,6 +136,48 @@ 


		#address-cells = <1>;

		#size-cells = <1>;



		status = "okay";

	};



	onenand@0,0 {

		compatible = "ti,omap2-onenand";

		reg = <0 0 0x20000>;	/* CS0, offset 0, IO size 128K */



		gpmc,sync-read;

		gpmc,sync-write;

		gpmc,burst-length = <16>;

		gpmc,burst-read;

		gpmc,burst-wrap;

		gpmc,burst-write;

		gpmc,device-width = <2>; /* GPMC_DEVWIDTH_16BIT */

		gpmc,mux-add-data = <2>; /* GPMC_MUX_AD */

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

		gpmc,cs-rd-off-ns = <87>;

		gpmc,cs-wr-off-ns = <87>;

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

		gpmc,adv-rd-off-ns = <10>;

		gpmc,adv-wr-off-ns = <10>;

		gpmc,oe-on-ns = <15>;

		gpmc,oe-off-ns = <87>;

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

		gpmc,we-off-ns = <87>;

		gpmc,rd-cycle-ns = <112>;

		gpmc,wr-cycle-ns = <112>;

		gpmc,access-ns = <81>;

		gpmc,page-burst-access-ns = <15>;

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

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

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

		gpmc,clk-activation-ns = <5>;

		gpmc,wr-data-mux-bus-ns = <30>;

		gpmc,wr-access-ns = <81>;

		gpmc,sync-clk-ps = <15000>;



		#address-cells = <1>;

		#size-cells = <1>;



		status = "disabled";

	};

};