[SPARC64]: PCI device scan is way too verbose by default.

These messages were very useful when bringing up the
OBP based PCI device scan code, but it's just a lot
of noise every bootup now especially on big machines.

The messages can be re-enabled via 'ofpci_debug=1' on
the kernel command line.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 40 insertions, 14 deletions

diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index d4c077dc5e85..38a32bc95d22 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -306,6 +306,20 @@ static void __init pci_controller_probe(void)
         pci_controller_scan(pci_controller_init);
 }
 
+static int ofpci_verbose;
+
+static int __init ofpci_debug(char *str)
+{
+        int val = 0;
+
+        get_option(&str, &val);
+        if (val)
+                ofpci_verbose = 1;
+        return 1;
+}
+
+__setup("ofpci_debug=", ofpci_debug);
+
 static unsigned long pci_parse_of_flags(u32 addr0)
 {
         unsigned long flags = 0;
@@ -337,7 +351,9 @@ static void pci_parse_of_addrs(struct of_device *op,
         addrs = of_get_property(node, "assigned-addresses", &proplen);
         if (!addrs)
                 return;
-        printk("    parse addresses (%d bytes) @ %p\n", proplen, addrs);
+        if (ofpci_verbose)
+                printk("    parse addresses (%d bytes) @ %p\n",
+                       proplen, addrs);
         op_res = &op->resource[0];
         for (; proplen >= 20; proplen -= 20, addrs += 5, op_res++) {
                 struct resource *res;
@@ -348,8 +364,9 @@ static void pci_parse_of_addrs(struct of_device *op,
                 if (!flags)
                         continue;
                 i = addrs[0] & 0xff;
-                printk("  start: %lx, end: %lx, i: %x\n",
-                       op_res->start, op_res->end, i);
+                if (ofpci_verbose)
+                        printk("  start: %lx, end: %lx, i: %x\n",
+                               op_res->start, op_res->end, i);
 
                 if (PCI_BASE_ADDRESS_0 <= i && i <= PCI_BASE_ADDRESS_5) {
                         res = &dev->resource[(i - PCI_BASE_ADDRESS_0) >> 2];
@@ -393,8 +410,9 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
         if (type == NULL)
                 type = "";
 
-        printk("    create device, devfn: %x, type: %s hostcontroller(%d)\n",
-               devfn, type, host_controller);
+        if (ofpci_verbose)
+                printk("    create device, devfn: %x, type: %s\n",
+                       devfn, type);
 
         dev->bus = bus;
         dev->sysdata = node;
@@ -434,8 +452,9 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
                 sprintf(pci_name(dev), "%04x:%02x:%02x.%d", pci_domain_nr(bus),
                         dev->bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn));
         }
-        printk("    class: 0x%x device name: %s\n",
-               dev->class, pci_name(dev));
+        if (ofpci_verbose)
+                printk("    class: 0x%x device name: %s\n",
+                       dev->class, pci_name(dev));
 
         /* I have seen IDE devices which will not respond to
          * the bmdma simplex check reads if bus mastering is
@@ -469,7 +488,8 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
         }
         pci_parse_of_addrs(sd->op, node, dev);
 
-        printk("    adding to system ...\n");
+        if (ofpci_verbose)
+                printk("    adding to system ...\n");
 
         pci_device_add(dev, bus);
 
@@ -547,7 +567,8 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm,
         unsigned int flags;
         u64 size;
 
-        printk("of_scan_pci_bridge(%s)\n", node->full_name);
+        if (ofpci_verbose)
+                printk("of_scan_pci_bridge(%s)\n", node->full_name);
 
         /* parse bus-range property */
         busrange = of_get_property(node, "bus-range", &len);
@@ -632,7 +653,8 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm,
 simba_cont:
         sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus),
                 bus->number);
-        printk("    bus name: %s\n", bus->name);
+        if (ofpci_verbose)
+                printk("    bus name: %s\n", bus->name);
 
         pci_of_scan_bus(pbm, node, bus);
 }
@@ -646,12 +668,14 @@ static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm,
         int reglen, devfn;
         struct pci_dev *dev;
 
-        printk("PCI: scan_bus[%s] bus no %d\n",
-               node->full_name, bus->number);
+        if (ofpci_verbose)
+                printk("PCI: scan_bus[%s] bus no %d\n",
+                       node->full_name, bus->number);
 
         child = NULL;
         while ((child = of_get_next_child(node, child)) != NULL) {
-                printk("  * %s\n", child->full_name);
+                if (ofpci_verbose)
+                        printk("  * %s\n", child->full_name);
                 reg = of_get_property(child, "reg", &reglen);
                 if (reg == NULL || reglen < 20)
                         continue;
@@ -661,7 +685,9 @@ static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm,
                 dev = of_create_pci_dev(pbm, child, bus, devfn, 0);
                 if (!dev)
                         continue;
-                printk("PCI: dev header type: %x\n", dev->hdr_type);
+                if (ofpci_verbose)
+                        printk("PCI: dev header type: %x\n",
+                               dev->hdr_type);
 
                 if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
                     dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)