Commit bc7fedad authored by Florian Vaussard's avatar Florian Vaussard Committed by Benoit Cousson
Browse files

ARM: dts: OMAP3: Add support for Gumstix Overo with Tobi expansion board 



The Gumstix Overo is a computer on module using an OMAP3 processor.
This module must be plugged into an expansion board.

This patch adds a first device tree support for the Overo, using the
Tobi expansion board. The current support is able to boot and mount
the rootfs from MMC.

This patche also updates the omap3 dtb build target.

Currently working:
- mmc0 (on board microSD)
- i2c0 and i2c2 (i2c1 not used)
- led on GPIO

Signed-off-by: default avatarFlorian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: default avatarBenoit Cousson <b-cousson@ti.com>
parent 48420dbc

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

0 → 100644
+42 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2012 Florian Vaussard, EPFL Mobots group

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */



/*

 * The Gumstix Overo must be combined with an expansion board.

 */

/dts-v1/;



/include/ "omap3.dtsi"



&i2c1 {

	clock-frequency = <2600000>;



	twl: twl@48 {

		reg = <0x48>;

		interrupts = <7>; /* SYS_NIRQ cascaded to intc */

		interrupt-parent = <&intc>;

	};

};



/include/ "twl4030.dtsi"



/* i2c2 pins are used for gpio */

&i2c2 {

	status = "disabled";

};



/* on board microSD slot */

&mmc1 {

	vmmc-supply = <&vmmc1>;

	bus-width = <4>;

};



/* optional on board WiFi */

&mmc2 {

	bus-width = <4>;

};

arch/arm/boot/dts/omap3-tobi.dts

0 → 100644
+35 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2012 Florian Vaussard, EPFL Mobots group

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */



/*

 * Tobi expansion board is manufactured by Gumstix Inc.

 */



/include/ "omap3-overo.dtsi"



/ {

	model = "TI OMAP3 Gumstix Overo on Tobi";

	compatible = "ti,omap3-tobi", "ti,omap3-overo", "ti,omap3";



	leds {

		compatible = "gpio-leds";

		heartbeat {

			label = "overo:red:gpio21";

			gpios = <&gpio1 21 0>;

			linux,default-trigger = "heartbeat";

		};

	};

};



&i2c3 {

	clock-frequency = <100000>;

};



&mmc3 {

	status = "disabled";

};

arch/arm/mach-omap2/Makefile.boot

+1 −1
Original line number Diff line number Diff line
@@ -3,7 +3,7 @@ params_phys-y := 0x80000100 
initrd_phys-y		:= 0x80800000



dtb-$(CONFIG_SOC_OMAP2420)	+= omap2420-h4.dtb

dtb-$(CONFIG_ARCH_OMAP3)	+= omap3-beagle.dtb omap3-evm.dtb

dtb-$(CONFIG_ARCH_OMAP3)	+= omap3-beagle.dtb omap3-evm.dtb omap3-tobi.dtb

dtb-$(CONFIG_ARCH_OMAP4)	+= omap4-panda.dtb omap4-pandaES.dtb

dtb-$(CONFIG_ARCH_OMAP4)	+= omap4-var_som.dtb omap4-sdp.dtb

dtb-$(CONFIG_SOC_OMAP5)		+= omap5-evm.dtb

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