Shin-ichiro KAWASAKI a écrit :
Hello, Rob,
This mail might be too late, but I want to report you that I
encountered similar trouble.
Using the linux kernel after the following commit, the qemu-sh
serial console shows no output.
cd5f107628ab89c5dec5ad923f1c27f4cba41972
This trouble was discussed in sh-linux ML.
http://marc.info/?l=linux-sh&m=127183863325672&w=2
To avoid this,
- add "earlyprintk=sh-sci.1" to kernel command line, and
- modify CONFIG_SERIAL_SH_SCI_NR_UARTS valud from 1 to 2,
in kernel configuration menu.
I hope that this is the trouble you see.
The main problem here is that QEMU emulates both SCI channels as serial
port, while the real board has one of the two channel configured as a
SPI bus (for the RTC clock), and the other as a serial port.