Commit baa3477f authored by NeilBrown's avatar NeilBrown Committed by Greg Kroah-Hartman
Browse files

staging: mt7621-dts: add support for second network interface 



The mt7621 has two network interfaces, one that connects to an
internal switch, and one that can connect to either that switch
or an external phy, or possibly an internal phy.

The Gnubee-PC2 has an external phy for use with the second interface.

This patch add some support for the second interface to mt7621.dtsi
and add a gbpc2.dts which makes use of this.  This allows the second
interface to be used.

I don't fully understand how to configure this interface - the
documentation is thin - so there could well be room for improvement
here.

Signed-off-by: default avatarNeilBrown <neil@brown.name>
Link: https://lore.kernel.org/r/156194178766.1430.12784163026696670896.stgit@noble.brown


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent cf8e49ae

drivers/staging/mt7621-dts/Kconfig

+6 −1
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0

config DTB_GNUBEE1

	bool "GnuBee1 NAS"

	bool "GnuBee1 2.5inch NAS"

	depends on SOC_MT7621 && DTB_RT_NONE

	select BUILTIN_DTB



config DTB_GNUBEE2

	bool "GnuBee2 3.5inch NAS"

	depends on SOC_MT7621 && DTB_RT_NONE

	select BUILTIN_DTB

drivers/staging/mt7621-dts/Makefile

+1 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0

dtb-$(CONFIG_DTB_GNUBEE1)      += gbpc1.dtb

dtb-$(CONFIG_DTB_GNUBEE2)      += gbpc2.dtb



obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))

drivers/staging/mt7621-dts/gbpc1.dts

+1 −1
Original line number Diff line number Diff line
@@ -119,7 +119,7 @@ 


&pinctrl {

	state_default: pinctrl0 {

		gpio {

		default_gpio: gpio {

			groups = "wdt", "rgmii2", "uart3";

			function = "gpio";

		};

drivers/staging/mt7621-dts/gbpc2.dts

0 → 100644
+21 −0
Original line number Diff line number Diff line 
/dts-v1/;



#include "gbpc1.dts"



/ {

	compatible = "gnubee,gb-pc2", "mediatek,mt7621-soc";

	model = "GB-PC2";

};



&default_gpio {

	groups = "wdt", "uart3";

	function = "gpio";

};



&gmac1 {

	status = "ok";

};



&phy_external {

	status = "ok";

};

drivers/staging/mt7621-dts/mt7621.dtsi

+8 −4
Original line number Diff line number Diff line
@@ -427,16 +427,20 @@ 
			compatible = "mediatek,eth-mac";

			reg = <1>;

			status = "off";

			phy-mode = "rgmii";

			phy-handle = <&phy5>;

			phy-mode = "rgmii-rxid";

			phy-handle = <&phy_external>;

		};

		mdio-bus {

			#address-cells = <1>;

			#size-cells = <0>;



			phy5: ethernet-phy@5 {

			phy_external: ethernet-phy@5 {

				status = "off";

				reg = <5>;

				phy-mode = "rgmii";

				phy-mode = "rgmii-rxid";



				pinctrl-names = "default";

				pinctrl-0 = <&rgmii2_pins>;

			};



			switch0: switch0@0 {

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