Commit 6a29fa31 authored by Linus Walleij's avatar Linus Walleij
Browse files

ARM: dts: add device tree for the RealView EB Rev D 



The RealView EB baseboard revision D is a special case as it appears
to be undocumented in ARM official documents, while the Linux kernel
still contains special code for handling it.

commit be4f3c86
"Add RealView/EB support for the LAN9118 Ethernet chip"
adds support for the SMSC LAN9118 chip used on the D revision of
the baseboard, but no other traces of hardware deviations for this
variant can be found.

This creates a separate top-level .dts file especially for this
board version, so that it gets registered with the right type
of ethernet controller. The ethernet controller modifications
are then put into a separate .dtsi file so it can be overlaid
on other EB variants using the revision D baseboard.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent c4ad7256

arch/arm/boot/dts/Makefile

+1 −0
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@@ -608,6 +608,7 @@ dtb-$(CONFIG_ARCH_REALVIEW) += \ 
	arm-realview-pb1176.dtb \

	arm-realview-pb11mp.dtb \

	arm-realview-eb.dtb \

	arm-realview-eb-bbrevd.dtb \

	arm-realview-eb-11mp.dtb \

	arm-realview-eb-11mp-revb.dtb \

	arm-realview-eb-a9mp.dtb \

arch/arm/boot/dts/arm-realview-eb-bbrevd.dts

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+29 −0
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/*

 * Copyright 2016 Linaro Ltd

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */



/* This derives from the Realview Baseboard, and overlays the new ethernet */

#include "arm-realview-eb.dts"

#include "arm-realview-eb-bbrevd.dtsi"



/ {

	model = "ARM RealView Emulation Baseboard Rev D";

};

arch/arm/boot/dts/arm-realview-eb-bbrevd.dtsi

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+45 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2016 Linaro Ltd

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */



/ {

	/* Introduce a fixed regulator for the new ethernet controller */

	veth: fixedregulator@0 {

		compatible = "regulator-fixed";

		regulator-name = "veth";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		regulator-boot-on;

	};

};



/*

 * The revision D has a different ethernet controller that the elder boards:

 * the older board uses LAN91C111 but the new one uses LAN9118.

 */

&ethernet {

	compatible = "smsc,lan9118", "smsc,lan9115";

	phy-mode = "mii";

	smsc,irq-active-high;

	smsc,irq-push-pull;

	vdd33a-supply = <&veth>;

	vddvario-supply = <&veth>;

};

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