[siba] make the debug code somewhat useful again.

It's still not configurable by a kernel option; that'll come next.

Sponsored by:	Palm Springs

sys/dev/siba/siba_core.c

@@ -184,6 +184,8 @@ siba_core_attach(struct siba_softc *siba)
 
 	siba->siba_ops = &siba_pci_ops;
 
+	siba->siba_debug = SIBA_DEBUG_SCAN;
+
 	siba_pci_gpio(siba, SIBA_GPIO_CRYSTAL | SIBA_GPIO_PLL, 1);
 	siba_scan(siba);
 
@@ -332,7 +334,8 @@ siba_scan(struct siba_softc *siba)
 		DPRINTF(siba, SIBA_DEBUG_SCAN,
 		    "core %d (%s) found (cc %#xrev %#x vendor %#x)\n",
 		    i, siba_core_name(sd->sd_id.sd_device),
-		    sd->sd_id.sd_device, sd->sd_id.sd_rev, sd->sd_id.vendor);
+		    sd->sd_id.sd_device, sd->sd_id.sd_rev,
+		    sd->sd_id.sd_vendor);
 
 		switch (sd->sd_id.sd_device) {
 		case SIBA_DEVID_CHIPCOMMON:

sys/dev/siba/sibavar.h

@@ -604,6 +604,7 @@ struct siba_softc {
 	bus_addr_t			siba_maddr;
 	bus_size_t			siba_msize;
 	uint8_t				siba_ncores;
+	uint32_t			siba_debug;
 
 	/*
 	 * the following variables are only used for siba_bwn bridge.