Re: [RFC] arm64: dts: ti: introduce a minimal am642 device tree

From: Wadim Egorov
Date: Wed Mar 30 2022 - 10:11:12 EST


Hi Bryan,

+/* (optional) for console */
+&main_uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart0_pins_default>;
+};
+
+/* reserved for firmware */
+&main_uart1 {
+ status = "reserved";
+};

k3-image-gen says UART0 is used as a debug interface. See


https://git.ti.com/cgit/k3-image-gen/k3-image-gen/tree/soc/am64x/evm/board-cfg.c#n81

So it seems that you can enable uart1 here. But people may run into a conflict with uart0 and k3-image-gen compiled with ENABLE_TRACE=1.

If I am wrong, can you please clarify why you mark uart1 as reserved.

Regards,
Wadim