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arm64: dts: ti: k3-am62p-verdin: Split UART_2 pinctrl group

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Some carrier board reuse the UART_2 control signals as GPIO, split
the pinctrl RTS/CTS in separated nodes to maximize flexibility.

Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://patch.msgid.link/20260324093705.26730-6-francesco@dolcini.it
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Francesco Dolcini 2026-03-24 10:37:00 +01:00 committed by Vignesh Raghavendra
parent 4abc2f22e4
commit cbbda85361
1 changed files with 18 additions and 4 deletions
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22
arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
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@ -767,15 +767,27 @@ AM62PX_MCU_IOPAD(0x0084, PIN_OUTPUT, 0) /* (F13) WKUP_CLKOUT0 */ /* SODIMM 91 */
>;
};
/* Verdin UART_2 */
/* Verdin UART_2 RX/TX */
pinctrl_wkup_uart0: wkup-uart0-default-pins {
pinctrl-single,pins = <
AM62PX_MCU_IOPAD(0x002c, PIN_INPUT, 0) /* (C7) WKUP_UART0_CTSn */ /* SODIMM 143 */
AM62PX_MCU_IOPAD(0x0030, PIN_OUTPUT, 0) /* (C6) WKUP_UART0_RTSn */ /* SODIMM 141 */
AM62PX_MCU_IOPAD(0x0024, PIN_INPUT, 0) /* (D8) WKUP_UART0_RXD */ /* SODIMM 137 */
AM62PX_MCU_IOPAD(0x0028, PIN_OUTPUT, 0) /* (D7) WKUP_UART0_TXD */ /* SODIMM 139 */
>;
};
/* Verdin UART_2 CTS */
pinctrl_wkup_uart0_cts: wkup-uart0-cts-default-pins {
pinctrl-single,pins = <
AM62PX_MCU_IOPAD(0x002c, PIN_INPUT, 0) /* (C7) WKUP_UART0_CTSn */ /* SODIMM 143 */
>;
};
/* Verdin UART_2 RTS */
pinctrl_wkup_uart0_rts: wkup-uart0-rts-default-pins {
pinctrl-single,pins = <
AM62PX_MCU_IOPAD(0x0030, PIN_OUTPUT, 0) /* (C6) WKUP_UART0_RTSn */ /* SODIMM 141 */
>;
};
};
/* Verdin I2S_1_MCLK */
@ -1410,7 +1422,9 @@ som_eeprom: eeprom@50 {
/* Verdin UART_2 */
&wkup_uart0 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_wkup_uart0>;
pinctrl-0 = <&pinctrl_wkup_uart0>,
<&pinctrl_wkup_uart0_cts>,
<&pinctrl_wkup_uart0_rts>;
uart-has-rtscts;
status = "disabled";
};