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arm64: dts: ti: k3-am62-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/20260324093705.26730-4-francesco@dolcini.it
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Francesco Dolcini 2026-03-24 10:36:58 +01:00 committed by Vignesh Raghavendra
parent 944dffaec1
commit 903c29493e
1 changed files with 16 additions and 4 deletions
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20
arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
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@ -820,15 +820,27 @@ AM62X_MCU_IOPAD(0x0084, PIN_OUTPUT, 0) /* (A12) WKUP_CLKOUT0 */ /* SODIMM 91 */
>;
};
/* Verdin UART_2 */
/* Verdin UART_2 RX/TX */
pinctrl_wkup_uart0: wkup-uart0-default-pins {
pinctrl-single,pins = <
AM62X_MCU_IOPAD(0x002c, PIN_INPUT_PULLUP, 0) /* (C6) WKUP_UART0_CTSn */ /* SODIMM 143 */
AM62X_MCU_IOPAD(0x0030, PIN_OUTPUT, 0) /* (A4) WKUP_UART0_RTSn */ /* SODIMM 141 */
AM62X_MCU_IOPAD(0x0024, PIN_INPUT_PULLUP, 0) /* (B4) WKUP_UART0_RXD */ /* SODIMM 137 */
AM62X_MCU_IOPAD(0x0028, PIN_OUTPUT, 0) /* (C5) WKUP_UART0_TXD */ /* SODIMM 139 */
>;
};
/* Verdin UART_2 CTS */
pinctrl_wkup_uart0_cts: wkup-uart0-cts-default-pins {
pinctrl-single,pins = <
AM62X_MCU_IOPAD(0x002c, PIN_INPUT_PULLUP, 0) /* (C6) WKUP_UART0_CTSn */ /* SODIMM 143 */
>;
};
/* Verdin UART_2 RTS */
pinctrl_wkup_uart0_rts: wkup-uart0-rts-default-pins {
pinctrl-single,pins = <
AM62X_MCU_IOPAD(0x0030, PIN_OUTPUT, 0) /* (A4) WKUP_UART0_RTSn */ /* SODIMM 141 */
>;
};
};
/* VERDIN I2S_1_MCLK */
@ -1502,7 +1514,7 @@ &usb1 {
/* 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>;
status = "disabled";
};