UART1 acts as default debug port on TX2, R28.1

[jburman]

Hello Tonie,
It looks like you are trying to get console logs on UART2, please make below changes to get console logs on uart2:

1. To get mb1/bootloader message:
   BCT changes:
   file name: tegra186-mb1-bct-misc-si-l4t.cfg

---

cpu.nafll_b_cluster_data = 0x11F04461;

debug variables

debug.enable_log = 1;
-debug.uart_instance = 0;
+debug.uart_instance = 2;

sw_carveout variables

---

2. To get kernel logs:
   dts changes:
   serial@3100000 {

•           compatible = "nvidia,tegra20-uart", "nvidia,tegra186-hsuart";
  

•           compatible = "nvidia,tegra186-hsuart";
            console-port;
            sqa-automation-port;
            status = "okay";
  

@@ -53,7 +53,7 @@
};

    serial@c280000 {

•           compatible = "nvidia,tegra186-hsuart";
  

•           compatible = "nvidia,tegra20-uart", "nvidia,tegra186-hsuart";
            status = "okay";
    };
  

3. Add ttyS2 in kernel-command line:

-CMDLINE_ADD=“console=ttyS0,115200n8 console=tty1 OS=l4t fbcon=map:0 net.ifnames=0”;
+CMDLINE_ADD=“console=ttyS2,115200n8 console=tty1 OS=l4t fbcon=map:0 net.ifnames=0”;

4. Connect Serial port to UART2 to get console logs.