1281e00a3SwdenkThe support for multiple serial interfaces as implemented is mainly 2281e00a3Swdenkintended to allow for modem dial-in / dial-out while still being able 3281e00a3Swdenkto use a serial console on a (different) serial port. 4281e00a3Swdenk 5ff36fd85SwdenkMPC8XX Specific 6ff36fd85Swdenk=============== 7281e00a3SwdenkAt the moment, the ports must be split on a SMC and a SCC port on a 8281e00a3Swdenk8xx processor; other configurations are not (yet) supported. 9281e00a3Swdenk 10281e00a3SwdenkSupport for hardware handshake has not been implemented yet (but is 11281e00a3Swdenkin the works). 12281e00a3Swdenk 13281e00a3Swdenk*) The default console depends on the keys pressed: 14281e00a3Swdenk - SMC if keys not pressed (modem not enabled) 15281e00a3Swdenk - SCC if keys pressed (modem enabled) 16281e00a3Swdenk 17281e00a3Swdenk*) The console can be switched to SCC by any of the following commands: 18281e00a3Swdenk 19281e00a3Swdenk setenv stdout serial_scc 20281e00a3Swdenk setenv stdin serial_scc 21281e00a3Swdenk setenv stderr serial_scc 22281e00a3Swdenk 23281e00a3Swdenk*) The console can be switched to SMC by any of the following commands: 24281e00a3Swdenk 25281e00a3Swdenk setenv stdout serial_smc 26281e00a3Swdenk setenv stdin serial_smc 27281e00a3Swdenk setenv stderr serial_smc 28281e00a3Swdenk 29281e00a3Swdenk*) If a file descriptor is set to "serial" then the current serial device 30281e00a3Swdenkwill be used which, in turn, can be switched by above commands. 31281e00a3Swdenk 32281e00a3Swdenk*) The baudrate is the same for all serial devices. But it can be switched 33281e00a3Swdenkjust after switching the console: 34281e00a3Swdenk 35281e00a3Swdenk setenv sout serial_scc; setenv baudrate 38400 36281e00a3Swdenk 37281e00a3SwdenkAfter that press 'enter' at the SCC console. Note that baudrates <38400 38*6d0f6bcfSJean-Christophe PLAGNIOL-VILLARDare not allowed on LWMON with watchdog enabled (see CONFIG_SYS_BAUDRATE_TABLE in 39281e00a3Swdenkinclude/configs/lwmon.h). 40ff36fd85Swdenk 41ff36fd85Swdenk 42ff36fd85SwdenkPPC4XX Specific 43ff36fd85Swdenk=============== 44ff36fd85Swdenk*) The default console is UART0 45ff36fd85Swdenk 46ff36fd85Swdenk*) The console can be switched to UART1 by any of the following commands: 47ff36fd85Swdenk setenv stdout serial1 48ff36fd85Swdenk setenv stderr serial1 49ff36fd85Swdenk setenv stdin serial1 50ff36fd85Swdenk 51ff36fd85Swdenk*) The console can be switched to UART0 by any of the following commands: 52ff36fd85Swdenk setenv stdout serial0 53ff36fd85Swdenk setenv stderr serial0 54ff36fd85Swdenk setenv stdin serial0 55