13 files changed, 29 insertions, 85 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index bc6d82162ebe..906d440f1afe 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6338,6 +6338,7 @@ S:	Supported
 F:      Documentation/PCI/
 F:      drivers/pci/
 F:      include/linux/pci*
+F:      arch/x86/pci/
 
 PCI DRIVER FOR NVIDIA TEGRA
 M:      Thierry Reding <thierry.reding@gmail.com>
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index 146da904cdd8..f666734926d5 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -11,7 +11,6 @@
 
 #define pcibios_assign_all_busses(void) 1
 
-extern unsigned long pci_mem_start;
 #define PCIBIOS_MIN_IO          0x1000
 #define PCIBIOS_MIN_MEM         0x10000000
 
diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h
index 76c4e73d643d..a7e487fe76ed 100644
--- a/arch/frv/mb93090-mb00/pci-frv.h
+++ b/arch/frv/mb93090-mb00/pci-frv.h
@@ -30,7 +30,6 @@ void pcibios_resource_survey(void);
 
 /* pci-vdk.c */
 
-extern int __nongpreldata pcibios_last_bus;
 extern struct pci_ops *__nongpreldata pci_root_ops;
 
 /* pci-irq.c */
diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c
index deb67843693c..efa5d65b0007 100644
--- a/arch/frv/mb93090-mb00/pci-vdk.c
+++ b/arch/frv/mb93090-mb00/pci-vdk.c
@@ -25,7 +25,6 @@
 
 unsigned int __nongpreldata pci_probe = 1;
 
-int  __nongpreldata pcibios_last_bus = -1;
 struct pci_ops *__nongpreldata pci_root_ops;
 
 /*
@@ -220,37 +219,6 @@ static struct pci_ops * __init pci_check_direct(void)
 }
 
 /*
- * Discover remaining PCI buses in case there are peer host bridges.
- * We use the number of last PCI bus provided by the PCI BIOS.
- */
-static void __init pcibios_fixup_peer_bridges(void)
-{
-        struct pci_bus bus;
-        struct pci_dev dev;
-        int n;
-        u16 l;
-
-        if (pcibios_last_bus <= 0 || pcibios_last_bus >= 0xff)
-                return;
-        printk("PCI: Peer bridge fixup\n");
-        for (n=0; n <= pcibios_last_bus; n++) {
-                if (pci_find_bus(0, n))
-                        continue;
-                bus.number = n;
-                bus.ops = pci_root_ops;
-                dev.bus = &bus;
-                for(dev.devfn=0; dev.devfn<256; dev.devfn += 8)
-                        if (!pci_read_config_word(&dev, PCI_VENDOR_ID, &l) &&
-                            l != 0x0000 && l != 0xffff) {
-                                printk("Found device at %02x:%02x [%04x]\n", n, dev.devfn, l);
-                                printk("PCI: Discovered peer bus %02x\n", n);
-                                pci_scan_bus(n, pci_root_ops, NULL);
-                                break;
-                        }
-        }
-}
-
-/*
  * Exceptions for specific devices. Usually work-arounds for fatal design flaws.
  */
 
@@ -418,7 +386,6 @@ int __init pcibios_init(void)
         pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources);
 
         pcibios_irq_init();
-        pcibios_fixup_peer_bridges();
         pcibios_fixup_irqs();
         pcibios_resource_survey();
 
@@ -432,9 +399,6 @@ char * __init pcibios_setup(char *str)
         if (!strcmp(str, "off")) {
                 pci_probe = 0;
                 return NULL;
-        } else if (!strncmp(str, "lastbus=", 8)) {
-                pcibios_last_bus = simple_strtol(str+8, NULL, 0);
-                return NULL;
         }
         return str;
 }
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 6f31cc0f1a87..166323824683 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -44,7 +44,6 @@ extern void unit_pci_init(void);
 #define pcibios_assign_all_busses()     0
 #endif
 
-extern unsigned long pci_mem_start;
 #define PCIBIOS_MIN_IO          0xBE000004
 #define PCIBIOS_MIN_MEM         0xB8000000
 
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c
index ebac9c11f796..2ad7f32fa122 100644
--- a/arch/mn10300/kernel/setup.c
+++ b/arch/mn10300/kernel/setup.c
@@ -35,9 +35,6 @@
 
 struct mn10300_cpuinfo boot_cpu_data;
 
-/* For PCI or other memory-mapped resources */
-unsigned long pci_mem_start = 0x18000000;
-
 static char __initdata cmd_line[COMMAND_LINE_SIZE];
 char redboot_command_line[COMMAND_LINE_SIZE] =
         "console=ttyS0,115200 root=/dev/mtdblock3 rw";
diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.h b/arch/mn10300/unit-asb2305/pci-asb2305.h
index 7fa66a0e4624..9e17aca5a2a1 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.h
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.h
@@ -35,7 +35,6 @@ extern void pcibios_resource_survey(void);
 
 /* pci.c */
 
-extern int pcibios_last_bus;
 extern struct pci_ops *pci_root_ops;
 
 extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index e37fac0461f3..6b4339f8c9c2 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -24,7 +24,6 @@
 
 unsigned int pci_probe = 1;
 
-int pcibios_last_bus = -1;
 struct pci_ops *pci_root_ops;
 
 /*
@@ -392,10 +391,6 @@ char *__init pcibios_setup(char *str)
         if (!strcmp(str, "off")) {
                 pci_probe = 0;
                 return NULL;
-
-        } else if (!strncmp(str, "lastbus=", 8)) {
-                pcibios_last_bus = simple_strtol(str+8, NULL, 0);
-                return NULL;
         }
 
         return str;
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index b30e937689d6..7fb24e53d4c8 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -354,12 +354,12 @@ static void coalesce_windows(struct pci_root_info *info, unsigned long type)
                          * the kernel resource tree doesn't allow overlaps.