Define the wakeup uart pin-mux for completeness and add explicit
muxing for mcu_uart0. This allows the device tree usage in bootloader
and firmwares that can configure the same appropriately.
Signed-off-by: Nishanth Menon <nm@xxxxxx>
---
New patch in the series
.../boot/dts/ti/k3-am68-sk-base-board.dts | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
index 014ff13d1032..979898bc5b02 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
@@ -22,6 +22,8 @@ chosen {
};
aliases {
+ serial0 = &wkup_uart0;
+ serial1 = &mcu_uart0;
serial2 = &main_uart8;
mmc1 = &main_sdhci1;
can0 = &mcu_mcan0;
@@ -202,6 +204,15 @@ J721S2_IOPAD(0x08c, PIN_INPUT, 7) /* (T25) MCASP0_AXR7.GPIO0_35 */
};
&wkup_pmx2 {
+ wkup_uart0_pins_default: wkup-uart0-pins-default {
+ pinctrl-single,pins = <
+ J721S2_WKUP_IOPAD(0x070, PIN_INPUT, 0) /* (E25) WKUP_GPIO0_6.WKUP_UART0_CTSn */
+ J721S2_WKUP_IOPAD(0x074, PIN_OUTPUT, 0) /* (F28) WKUP_GPIO0_7.WKUP_UART0_RTSn */
+ J721S2_WKUP_IOPAD(0x048, PIN_INPUT, 0) /* (D28) WKUP_UART0_RXD */
+ J721S2_WKUP_IOPAD(0x04c, PIN_OUTPUT, 0) /* (D27) WKUP_UART0_TXD */
+ >;
+ };
+
mcu_cpsw_pins_default: mcu-cpsw-pins-default {
pinctrl-single,pins = <
J721S2_WKUP_IOPAD(0x02C, PIN_INPUT, 0) /* (B22) MCU_RGMII1_RD0 */
@@ -254,6 +265,13 @@ J721S2_WKUP_IOPAD(0x07c, PIN_INPUT, 0) /* (H26) WKUP_GPIO0_9.MCU_I2C1_SDA */
>;
};
+ mcu_uart0_pins_default: mcu-uart0-pins-default {
+ pinctrl-single,pins = <
+ J721S2_WKUP_IOPAD(0x08c, PIN_INPUT, 0) /* (C24) WKUP_GPIO0_13.MCU_UART0_RXD */
+ J721S2_WKUP_IOPAD(0x088, PIN_OUTPUT, 0) /* (C25) WKUP_GPIO0_12.MCU_UART0_TXD */
+ >;
+ };
+
mcu_rpi_header_gpio0_pins0_default: mcu-rpi-header-gpio0-pins0-default {
pinctrl-single,pins = <
J721S2_WKUP_IOPAD(0x118, PIN_INPUT, 7) /* (G25) WKUP_GPIO0_66 */
@@ -305,6 +323,14 @@ &wkup_gpio1 {
&wkup_uart0 {
status = "reserved";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wkup_uart0_pins_default>;
+};
+
+&mcu_uart0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&mcu_uart0_pins_default>;
};
&main_uart8 {
--
2.40.0
