ons 2013-06-26 klockan 10:51 +0200 skrev Henrik Nordström: > Seems something is broken with the serial support in 3.9 and later. > Tested openrisc-3.9 branch form Jonas repository and current mainline as > of yesterday with same symptom. The exact same kernel config & dts works > fine on 3.8 and earlier.
Stefan Kristiansson have reproduced this on de0_nano and his atlyst board. But it did not show up for him in a verilator simulation. It seems to be something related to the switch from 8250_early to 8250_core drivers. If earlycon is NOT used (console=ttyS0,115200) then the console works. A diff of linux-3.8 -> 3.9 drivers/tty/serial/8250/ shows nothing obvious. Investigation still pending. Don't know if it's rtl "hardware" bug or software bug.. Regards Henrik _______________________________________________ Linux mailing list Linux@lists.openrisc.net http://lists.openrisc.net/listinfo/linux
