From: Francesco Dolcini <francesco.dolcini@toradex.com>
Some carrier board reuse the UART_2 control signals as GPIO, split
the pinctrl RTC/CTS in separated nodes to maximize flexibility.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi | 22 +++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
index 34954df692a3..1c4c951e5e94 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
@@ -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";
};
--
2.47.3