AGESA fam15: Use local bus_isa storage

Do not use a global as the value gets discarded anyway.

Change-Id: I86aac304e073f0d74b011548d079e139891ec140
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6329
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
AGESA boards: Drop global bus_isa

Only ever used as lvalue (except when incrementing) so this global
is unused.

Change-Id: I616721f937eb0bfdb28f356284efd70f99ccd2dd
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6330
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
AGESA fam15: Drop code that was commented out

Only references to bus_rd890, bus_sp5100 and bus_sr5650 were
in code sections that had been commented out.

Change-Id: If5552c409ce948c494345f49dbaad790b398bff8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6331
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
AGESA: Drop unused extern declarations

Change-Id: I7f681b40251f49ff717589ed5e7d7e00ee36c7c1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6332
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
AGESA: Drop offset on PCI device enumeration

Integrated PCI devices in southbridge silicon have static BDFs,
no need to have variables to store the parent bus or an offset
with constant zero.

Change-Id: I37d3794d36b5e5775da9215574ddc199696646d0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6333
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
AGESA hudson yangtze: Move IMC firmware init out of get_bus_conf()

Change-Id: I5b3cbc4d25f06a5f916760d4474621abbf826ee4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6355
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>