1*281e00a3SwdenkThe support for multiple serial interfaces as implemented is mainly 2*281e00a3Swdenkintended to allow for modem dial-in / dial-out while still being able 3*281e00a3Swdenkto use a serial console on a (different) serial port. 4*281e00a3Swdenk 5*281e00a3SwdenkAt the moment, the ports must be split on a SMC and a SCC port on a 6*281e00a3Swdenk8xx processor; other configurations are not (yet) supported. 7*281e00a3Swdenk 8*281e00a3SwdenkSupport for hardware handshake has not been implemented yet (but is 9*281e00a3Swdenkin the works). 10*281e00a3Swdenk 11*281e00a3Swdenk*) The default console depends on the keys pressed: 12*281e00a3Swdenk - SMC if keys not pressed (modem not enabled) 13*281e00a3Swdenk - SCC if keys pressed (modem enabled) 14*281e00a3Swdenk 15*281e00a3Swdenk*) The console can be switched to SCC by any of the following commands: 16*281e00a3Swdenk 17*281e00a3Swdenk setenv stdout serial_scc 18*281e00a3Swdenk setenv stdin serial_scc 19*281e00a3Swdenk setenv stderr serial_scc 20*281e00a3Swdenk 21*281e00a3Swdenk*) The console can be switched to SMC by any of the following commands: 22*281e00a3Swdenk 23*281e00a3Swdenk setenv stdout serial_smc 24*281e00a3Swdenk setenv stdin serial_smc 25*281e00a3Swdenk setenv stderr serial_smc 26*281e00a3Swdenk 27*281e00a3Swdenk*) If a file descriptor is set to "serial" then the current serial device 28*281e00a3Swdenkwill be used which, in turn, can be switched by above commands. 29*281e00a3Swdenk 30*281e00a3Swdenk*) The baudrate is the same for all serial devices. But it can be switched 31*281e00a3Swdenkjust after switching the console: 32*281e00a3Swdenk 33*281e00a3Swdenk setenv sout serial_scc; setenv baudrate 38400 34*281e00a3Swdenk 35*281e00a3SwdenkAfter that press 'enter' at the SCC console. Note that baudrates <38400 36*281e00a3Swdenkare not allowed on LWMON with watchdog enabled (see CFG_BAUDRATE_TABLE in 37*281e00a3Swdenkinclude/configs/lwmon.h). 38