MIPS: Remove useless zero initializations.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c
index a9060c7..6f5e24c 100644
--- a/arch/mips/pci/pci-bcm1480.c
+++ b/arch/mips/pci/pci-bcm1480.c
@@ -57,7 +57,7 @@
 #define PCI_BUS_ENABLED	1
 #define PCI_DEVICE_MODE	2
 
-static int bcm1480_bus_status = 0;
+static int bcm1480_bus_status;
 
 #define PCI_BRIDGE_DEVICE  0
 
diff --git a/arch/mips/pci/pci-bcm1480ht.c b/arch/mips/pci/pci-bcm1480ht.c
index f54f454..50cc6e9 100644
--- a/arch/mips/pci/pci-bcm1480ht.c
+++ b/arch/mips/pci/pci-bcm1480ht.c
@@ -56,7 +56,7 @@
 #define PCI_BUS_ENABLED	1
 #define PCI_DEVICE_MODE	2
 
-static int bcm1480ht_bus_status = 0;
+static int bcm1480ht_bus_status;
 
 #define PCI_BRIDGE_DEVICE  0
 #define HT_BRIDGE_DEVICE   1
diff --git a/arch/mips/pci/pci-sb1250.c b/arch/mips/pci/pci-sb1250.c
index bf63959..ada24e6 100644
--- a/arch/mips/pci/pci-sb1250.c
+++ b/arch/mips/pci/pci-sb1250.c
@@ -58,7 +58,7 @@
 #define LDT_BUS_ENABLED	2
 #define PCI_DEVICE_MODE	4
 
-static int sb1250_bus_status = 0;
+static int sb1250_bus_status;
 
 #define PCI_BRIDGE_DEVICE  0
 #define LDT_BRIDGE_DEVICE  1
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index b0eb9e7..9a11c22 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -31,8 +31,8 @@
 
 static struct pci_controller *hose_head, **hose_tail = &hose_head;
 
-unsigned long PCIBIOS_MIN_IO	= 0x0000;
-unsigned long PCIBIOS_MIN_MEM	= 0;
+unsigned long PCIBIOS_MIN_IO;
+unsigned long PCIBIOS_MIN_MEM;
 
 static int pci_initialized;