On 11/15/18 5:16 PM, Guenter Roeck wrote: > On Thu, Nov 15, 2018 at 11:48:20AM -0800, Florian Fainelli wrote: >> >> OK, would you mind testing this below? It seems to me that 8250_of.c is >> incompatible with arch/powerpc/kernel/legacy_serial.c and that is what >> is causing the issue here. >> >> diff --git a/drivers/tty/serial/8250/Kconfig >> b/drivers/tty/serial/8250/Kconfig >> index d7737dca0e48..21cb14cbd34a 100644 >> --- a/drivers/tty/serial/8250/Kconfig >> +++ b/drivers/tty/serial/8250/Kconfig >> @@ -483,7 +483,7 @@ config SERIAL_8250_PXA >> >> config SERIAL_OF_PLATFORM >> tristate "Devicetree based probing for 8250 ports" >> - depends on SERIAL_8250 && OF >> + depends on SERIAL_8250 && OF && !(PPC && PPC_UDBG_16550) >> default SERIAL_8250 >> help >> This option is used for all 8250 compatible serial ports that > > 44x/virtex5_defconfig has both PPC_UDBG_16550 and SERIAL_OF_PLATFORM enabled > and fails to boot (or display anything on the console) with this patch > applied.
Thanks for trying, can you either share or provide a link to the mpc85xx and ml507 qemu command lines that you use? I spent a good chunk of my time trying to get a kernel to boot but has failed so far. Thanks -- Florian
