There is no update from you for a period, assuming this is not an issue anymore.
Hence, we are closing this topic. If need further support, please open a new one.
Thanks ~0910
Could you refer to Custom carrier board debugging/not booting - #14 by KevinFFF to redirect the serial console on AGX Orin?
For UART1, it is uarta@3100000 as the one you mentioned in original post.
Please share the full dmesg and device tree if you still not see any kernel message from UART1.