AM5728 debug console

Hi,

Default debug UART on AM335X AM57X is UART3. This should be enabled by default in the Linux SDK.

Hi,

I am referring to the latest TISDK: ti-processor-sdk-linux-am57xx-evm-02.00.01.07 & AM57xx GP EVM. 

First you need to perform the appropriate pinmux settings & call the uartX init function in u-boot, in order to initialize the uart you want to use.

Then change the #define CONSOLEDEV in include/configs/am57xx_evm.h. Currently it is set to:

#define CONSOLEDEV "ttyO2"      

Which as Biser already explained points to UART3.

In linux kernel, you need to: 
1. Do the correct pinmux in am57xx-beagle-x15.dts 

2. In am57xx-beagle-x15 add the following node: 
  &uartX { 
              status = "okay"; 

              interrupts-extended = <set/interrupts>;

}; 

This should change your default console settings. 

Best Regards, 

Yordan