writel(val, port->membase + AML_UART_CONTROL);
- baud = uart_get_baud_rate(port, termios, old, 9600, 115200);
+ baud = uart_get_baud_rate(port, termios, old, 9600, 4000000);
meson_uart_change_speed(port, baud);
port->read_status_mask = AML_UART_TX_FIFO_WERR;