Hi, > > Failing that: I'd suggest to create a variable for the serial port > > iobase, defaulting to CONFIG_DEBUG_SERIAL_PORT. Add a > > serial_debuf_pci_init(int bdf) helper function to read the iobase from > > pci config space and set that variable. > > > > That helper can then be hooked into pci scan, or called with a > > hardcoded bdf for early debug output, or both. > > Thank you for your suggestion. > So where should the argument "bdf" come from for the helper? > serial_debug_pci_init(int bdf) > In the case of hooking into pci scan, get the bdf by filtering the first > pci serial device(class code)? > In the case of called with hardcoded bdf for early debug output, we still > need a config option to hard code the "bdf", right?
Yes. The simplest way is probably to make serial_debug_pci_init() work only once, i.e. if the variable is already set to something != CONFIG_DEBUG_SERIAL_PORT just return without doing anything. That way the hardcoded bdf will be used if available, otherwise the first device (in pci scan order) will win. cheers, Gerd _______________________________________________ SeaBIOS mailing list -- seabios@seabios.org To unsubscribe send an email to seabios-le...@seabios.org
