Commit f7e630bc authored by Chris Healy's avatar Chris Healy Committed by Shawn Guo
Browse files

ARM: dts: ZII: Disable HW Ethernet switch reset GPIOs 



Disable Ethernet switch reset GPIO with ZII platforms that have it
enabled.  HW switch reset results in a reset of the copper PHYs
inside of the switch.  We want to avoid this reset of the copper PHYs
in the switch as this results in unnecessary broader network disruption on
a soft reboot of the application processor.

With the HW GPIO removed, the switch driver still performs a soft reset of
the switch core which has been shown to sufficiently meet our needs with
other ZII platforms that do not have the HW switch reset GPIO defined.

Signed-off-by: default avatarChris Healy <cphealy@gmail.com>
Reviewed-by: default avatarFabio Estevam <festevam@gmail.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 383689f4

arch/arm/boot/dts/vf610-zii-cfu1.dts

+0 −2
Original line number Diff line number Diff line
@@ -172,7 +172,6 @@ 
			interrupts = <2 IRQ_TYPE_LEVEL_LOW>;

			interrupt-controller;

			#interrupt-cells = <2>;

			reset-gpios = <&gpio3 11 GPIO_ACTIVE_LOW>;



			ports {

				#address-cells = <1>;
@@ -356,7 +355,6 @@ 
	pinctrl_switch: switch-grp {

		fsl,pins = <

			VF610_PAD_PTB28__GPIO_98		0x3061

			VF610_PAD_PTE2__GPIO_107		0x1042

		>;

	};

arch/arm/boot/dts/vf610-zii-spb4.dts

+0 −2
Original line number Diff line number Diff line
@@ -129,7 +129,6 @@ 
			pinctrl-names = "default";

			reg = <0>;

			eeprom-length = <65536>;

			reset-gpios = <&gpio3 11 GPIO_ACTIVE_LOW>;

			interrupt-parent = <&gpio3>;

			interrupts = <2 IRQ_TYPE_LEVEL_LOW>;

			interrupt-controller;
@@ -326,7 +325,6 @@ 


	pinctrl_gpio_switch0: pinctrl-gpio-switch0 {

		fsl,pins = <

			VF610_PAD_PTE2__GPIO_107		0x31c2

			VF610_PAD_PTB28__GPIO_98		0x219d

		>;

	};

arch/arm/boot/dts/vf610-zii-ssmb-dtu.dts

+0 −2
Original line number Diff line number Diff line
@@ -118,7 +118,6 @@ 
			pinctrl-names = "default";

			reg = <0>;

			eeprom-length = <65536>;

			reset-gpios = <&gpio3 11 GPIO_ACTIVE_LOW>;

			interrupt-parent = <&gpio3>;

			interrupts = <2 IRQ_TYPE_LEVEL_LOW>;

			interrupt-controller;
@@ -293,7 +292,6 @@ 


	pinctrl_gpio_switch0: pinctrl-gpio-switch0 {

		fsl,pins = <

			VF610_PAD_PTE2__GPIO_107		0x31c2

			VF610_PAD_PTB28__GPIO_98		0x219d

		>;

	};

arch/arm/boot/dts/vf610-zii-ssmb-spu3.dts

+0 −2
Original line number Diff line number Diff line
@@ -143,7 +143,6 @@ 
			pinctrl-names = "default";

			reg = <0>;

			eeprom-length = <65536>;

			reset-gpios = <&gpio3 11 GPIO_ACTIVE_LOW>;

			interrupt-parent = <&gpio3>;

			interrupts = <2 IRQ_TYPE_LEVEL_LOW>;

			interrupt-controller;
@@ -333,7 +332,6 @@ 


	pinctrl_gpio_switch0: pinctrl-gpio-switch0 {

		fsl,pins = <

			VF610_PAD_PTE2__GPIO_107		0x31c2

			VF610_PAD_PTB28__GPIO_98		0x219d

		>;

	};