Commit 65e8781a authored by Andrew Davis's avatar Andrew Davis Committed by Nishanth Menon
Browse files

arm64: dts: ti: k3-am65: Enable UART nodes at the board level 



UART nodes defined in the top-level AM65x SoC dtsi files are incomplete
and may not be functional unless they are extended with pinmux
information.

As the pinmux is only known at the board integration level, these
nodes should only be enabled when provided with this information.

Disable the UART nodes in the dtsi files and only enable the ones that
are actually pinned out on a given board.

Signed-off-by: default avatarAndrew Davis <afd@ti.com>
Signed-off-by: default avatarNishanth Menon <nm@ti.com>
Tested-by: default avatarJan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: default avatarBryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20221028142417.10642-2-afd@ti.com
parent e5bad300

arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi

+2 −4
Original line number Diff line number Diff line
@@ -360,15 +360,13 @@ &wkup_uart0 { 
};



&main_uart1 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&main_uart1_pins_default>;

};



&main_uart2 {

	status = "disabled";

};



&mcu_uart0 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&arduino_uart_pins_default>;

};

arch/arm64/boot/dts/ti/k3-am65-main.dtsi

+3 −0
Original line number Diff line number Diff line
@@ -91,6 +91,7 @@ main_uart0: serial@2800000 { 
		clock-frequency = <48000000>;

		current-speed = <115200>;

		power-domains = <&k3_pds 146 TI_SCI_PD_EXCLUSIVE>;

		status = "disabled";

	};



	main_uart1: serial@2810000 {
@@ -99,6 +100,7 @@ main_uart1: serial@2810000 { 
		interrupts = <GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>;

		clock-frequency = <48000000>;

		power-domains = <&k3_pds 147 TI_SCI_PD_EXCLUSIVE>;

		status = "disabled";

	};



	main_uart2: serial@2820000 {
@@ -107,6 +109,7 @@ main_uart2: serial@2820000 { 
		interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>;

		clock-frequency = <48000000>;

		power-domains = <&k3_pds 148 TI_SCI_PD_EXCLUSIVE>;

		status = "disabled";

	};



	crypto: crypto@4e00000 {

arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi

+6 −5
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ mcu_uart0: serial@40a00000 { 
		clock-frequency = <96000000>;

		current-speed = <115200>;

		power-domains = <&k3_pds 149 TI_SCI_PD_EXCLUSIVE>;

		status = "disabled";

	};



	mcu_ram: sram@41c00000 {

arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi

+1 −0
Original line number Diff line number Diff line
@@ -54,6 +54,7 @@ wkup_uart0: serial@42300000 { 
		clock-frequency = <48000000>;

		current-speed = <115200>;

		power-domains = <&k3_pds 150 TI_SCI_PD_EXCLUSIVE>;

		status = "disabled";

	};



	wkup_i2c0: i2c@42120000 {

arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-common.dtsi

+1 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ AM65X_IOPAD(0x0194, PIN_INPUT, 1) /* (E24) UART0_RIN */ 
};



&main_uart0 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&main_uart0_pins_default>;

};