Add CONFIG_P8 with PHB3 behind it

We can use a base CPU of POWER9 if we don't have P8.
We can also hide PHB3 code behind this,
and shave 12kb off skiboot.lid.xz

Reviewed-by: Dan Horák <dan@danny.cz>
[npiggin: add cpp define, fail gracefully on P8]
Signed-off-by: Stewart Smith <stewart@flamingspork.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/hw/Makefile.inc b/hw/Makefile.inc
index 9fcbb63..e273e89 100644
--- a/hw/Makefile.inc
+++ b/hw/Makefile.inc
@@ -3,12 +3,15 @@ SUBDIRS += hw
 HW_OBJS  = xscom.o chiptod.o lpc.o lpc-uart.o psi.o
 HW_OBJS += homer.o slw.o occ.o fsi-master.o centaur.o imc.o
 HW_OBJS += nx.o nx-rng.o nx-crypto.o nx-compress.o nx-842.o nx-gzip.o
-HW_OBJS += phb3.o sfc-ctrl.o fake-rtc.o bt.o p8-i2c.o prd.o
+HW_OBJS += sfc-ctrl.o fake-rtc.o bt.o p8-i2c.o prd.o
 HW_OBJS += dts.o lpc-rtc.o npu.o npu-hw-procedures.o xive.o phb4.o
 HW_OBJS += fake-nvram.o lpc-mbox.o npu2.o npu2-hw-procedures.o
 HW_OBJS += npu2-common.o npu2-opencapi.o phys-map.o sbe-p9.o capp.o
 HW_OBJS += occ-sensor.o vas.o sbe-p8.o dio-p9.o lpc-port80h.o cache-p9.o
 HW_OBJS += npu-opal.o ocmb.o xive2.o pau.o pau-hw-procedures.o
+ifeq ($(CONFIG_P8),1)
+HW_OBJS += phb3.o
+endif
 HW=hw/built-in.a
 
 include $(SRC)/hw/fsp/Makefile.inc