renumber XO-1.75 serial ports
|Reported by:||dsd||Owned by:||saadia|
|Deployments affected:||Action Needed:||never set|
The XO-1.75 has four serial ports.
- ttyS0: quanta's debug connector
- ttyS1: unconnected
- ttyS2: standard serial port used for OFW/kernel messages, runs a getty during Linux operation
- ttyS3: alternate serial port, nothing uses it by default
Paul suggests that we could unravel the mmp2/pxa layers a bit so that we can assign a better numbering scheme. Renaming ttyS2 to ttyS0 would solve a few special cases (bringing it in-line with XO-1/XO-1.5).