npu2-opencapi: Configure NPU for OpenCAPI

Scan the device tree for NPUs with OpenCAPI links and configure the NPU per
the initialisation sequence in the NPU OpenCAPI workbook.

Training of individual links and setup of per-AFU/link configuration will
be in a later patch.

Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

core/init.c

@@ -1072,6 +1072,8 @@ void __noreturn __nomcount main_cpu_entry(const void *fdt)
 	/* Probe NPUs */
 	probe_npu();
 	probe_npu2();
+	/* TODO: Eventually, we'll do NVLink and OpenCAPI together */
+	probe_npu2_opencapi();
 
 	/* Initialize PCI */
 	pci_init_slots();

hw/Makefile.inc

@@ -8,6 +8,8 @@ HW_OBJS += phb3.o 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 phys-map.o sbe-p9.o capp.o occ-sensor.o vas.o
+HW_OBJS += npu2-common.o npu2-opencapi.o phys-map.o sbe-p9.o capp.o occ-sensor.o
+HW_OBJS += vas.o
 HW=hw/built-in.a
 
 # FIXME hack this for now