In SDK9.0 defconfig the UART count set to 4, in SDK8.x, it is set to 10.Why do this kind of change? it result in customer who use >4 UART can't initialize successfully, waste time to identify.
In SDK9, which file is the default Kernel configuration file? is it ti_arm64_prune_config? did not find CONFIG_SERIAL_8250_NR_UART in the file, how does it configured to 4 in default?