CR_UARTEN 117 bsp/boot/arm/integrator/debug.c UART_CR = (CR_RXE | CR_TXE | CR_UARTEN); /* Enable UART */ CR_UARTEN 211 bsp/drv/dev/serial/pl011.c bus_write_32(UART_CR, (CR_RXE | CR_TXE | CR_UARTEN));