David Gibson <da...@gibson.dropbear.id.au> writes: > At present, the core device model code for 8250-like serial ports > (serial.c) and the code for serial ports attached to ISA-style legacy IO > (serial-isa.c) are both controlled by the CONFIG_SERIAL variable. > > There are lots and lots of embedded platforms that have 8250-like serial > ports but have never had anything resembling ISA legacy IO. Therefore, > split serial-isa into its own CONFIG_SERIAL_ISA option so it can be > disabled for platforms where it's not appropriate. > > For now, I enabled CONFIG_SERIAL_ISA in every default-config where > CONFIG_SERIAL is enabled, excepting microblaze, or32, and xtensa. As best > as I can tell, those platforms never used legacy ISA, and also don't > include PCI support (which would allow connection of a PCI->ISA bridge > and/or a southbridge including legacy ISA serial ports).
I poked them with nm, and the result supports your claims. > Signed-off-by: David Gibson <da...@gibson.dropbear.id.au> > Reviewed-by: Thomas Huth <th...@redhat.com> Reviewed-by: Markus Armbruster <arm...@redhat.com>
