Add wakeup and MCU uart. This allows the device tree usage in
bootloader and firmwares that can configure the same appropriately.
Signed-off-by: Nishanth Menon <[email protected]>
---
Depends on https://lore.kernel.org/linux-arm-kernel/[email protected]/
arch/arm64/boot/dts/ti/k3-am69-sk.dts | 31 +++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index ae41ff6249a1..409fcbaf0126 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -21,6 +21,8 @@ chosen {
};
aliases {
+ serial0 = &wkup_uart0;
+ serial1 = &mcu_uart0;
serial2 = &main_uart8;
mmc1 = &main_sdhci1;
i2c3 = &main_i2c0;
@@ -141,6 +143,22 @@ J784S4_IOPAD(0x0C4, PIN_INPUT, 7) /* (AD36) ECAP0_IN_APWM_OUT.GPIO0_49 */
};
&wkup_pmx2 {
+ wkup_uart0_pins_default: wkup-uart0-pins-default {
+ pinctrl-single,pins = <
+ J721S2_WKUP_IOPAD(0x070, PIN_INPUT, 0) /* (L37) WKUP_GPIO0_6.WKUP_UART0_CTSn */
+ J721S2_WKUP_IOPAD(0x074, PIN_INPUT, 0) /* (L36) WKUP_GPIO0_7.WKUP_UART0_RTSn */
+ J721S2_WKUP_IOPAD(0x048, PIN_INPUT, 0) /* (K35) WKUP_UART0_RXD */
+ J721S2_WKUP_IOPAD(0x04c, PIN_INPUT, 0) /* (K34) WKUP_UART0_TXD */
+ >;
+ };
+
+ mcu_uart0_pins_default: mcu-uart0-pins-default {
+ pinctrl-single,pins = <
+ J784S4_WKUP_IOPAD(0x08c, PIN_INPUT, 0) /* (K38) WKUP_GPIO0_13.MCU_UART0_RXD */
+ J784S4_WKUP_IOPAD(0x088, PIN_OUTPUT, 0) /* (J37) WKUP_GPIO0_12.MCU_UART0_TXD */
+ >;
+ };
+
mcu_cpsw_pins_default: mcu-cpsw-pins-default {
pinctrl-single,pins = <
J784S4_WKUP_IOPAD(0x02c, PIN_INPUT, 0) /* (A35) MCU_RGMII1_RD0 */
@@ -166,6 +184,19 @@ J784S4_WKUP_IOPAD(0x030, PIN_INPUT, 0) /* (B35) MCU_MDIO0_MDIO */
};
};
+&wkup_uart0 {
+ /* Firmware usage */
+ 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 {
status = "okay";
pinctrl-names = "default";
--
2.40.0