ARM: PCI: provide a default bus scan implementation

Most PCI implementations perform simple root bus scanning.  Rather than
having each group of platforms provide a duplicated bus scan function,
provide the PCI configuration ops structure via the hw_pci structure,
and call the root bus scanning function from core ARM PCI code.

Acked-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

52 files changed, 61 insertions, 135 deletions

diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index dcb13494ca0d..c4110d1b1f2d 100644
--- a/arch/arm/common/it8152.c
+++ b/arch/arm/common/it8152.c
@@ -222,7 +222,7 @@ static int it8152_pci_write_config(struct pci_bus *bus,
         return PCIBIOS_SUCCESSFUL;
 }
 
-static struct pci_ops it8152_ops = {
+struct pci_ops it8152_ops = {
         .read = it8152_pci_read_config,
         .write = it8152_pci_write_config,
 };
@@ -346,9 +346,4 @@ void pcibios_set_master(struct pci_dev *dev)
 }
 
 
-struct pci_bus * __init it8152_pci_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, nr, &it8152_ops, sys, &sys->resources);
-}
-
 EXPORT_SYMBOL(dma_set_coherent_mask);
diff --git a/arch/arm/common/via82c505.c b/arch/arm/common/via82c505.c
index 1171a5010aea..6cb362e56d29 100644
--- a/arch/arm/common/via82c505.c
+++ b/arch/arm/common/via82c505.c
@@ -51,7 +51,7 @@ via82c505_write_config(struct pci_bus *bus, unsigned int devfn, int where,
         return PCIBIOS_SUCCESSFUL;
 }
 
-static struct pci_ops via82c505_ops = {
+struct pci_ops via82c505_ops = {
         .read   = via82c505_read_config,
         .write  = via82c505_write_config,
 };
@@ -81,12 +81,3 @@ int __init via82c505_setup(int nr, struct pci_sys_data *sys)
 {
         return (nr == 0);
 }
-
-struct pci_bus * __init via82c505_scan_bus(int nr, struct pci_sys_data *sysdata)
-{
-        if (nr == 0)
-                return pci_scan_root_bus(NULL, 0, &via82c505_ops, sysdata,
-                                         &sysdata->resources);
-
-        return NULL;
-}
diff --git a/arch/arm/include/asm/hardware/it8152.h b/arch/arm/include/asm/hardware/it8152.h
index 73f84fa4f366..d36a73d7c0e8 100644
--- a/arch/arm/include/asm/hardware/it8152.h
+++ b/arch/arm/include/asm/hardware/it8152.h
@@ -110,6 +110,6 @@ extern void it8152_irq_demux(unsigned int irq, struct irq_desc *desc);
 extern void it8152_init_irq(void);
 extern int it8152_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 extern int it8152_pci_setup(int nr, struct pci_sys_data *sys);
-extern struct pci_bus *it8152_pci_scan_bus(int nr, struct pci_sys_data *sys);
+extern struct pci_ops it8152_ops;
 
 #endif /* __ASM_HARDWARE_IT8152_H */
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index ff8146a69683..b4b94b4341f6 100644
--- a/arch/arm/include/asm/mach/pci.h
+++ b/arch/arm/include/asm/mach/pci.h
@@ -12,6 +12,7 @@
 #define __ASM_MACH_PCI_H
 
 struct pci_sys_data;
+struct pci_ops;
 struct pci_bus;
 
 struct hw_pci {
@@ -19,6 +20,7 @@ struct hw_pci {
         int             domain;
 #endif
         struct list_head buses;
+        struct pci_ops  *ops;
         int             nr_controllers;
         int             (*setup)(int nr, struct pci_sys_data *);
         struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
@@ -56,22 +58,22 @@ void pci_common_init(struct hw_pci *);
 /*
  * PCI controllers
  */
+extern struct pci_ops iop3xx_ops;
 extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
-extern struct pci_bus *iop3xx_pci_scan_bus(int nr, struct pci_sys_data *);
 extern void iop3xx_pci_preinit(void);
 extern void iop3xx_pci_preinit_cond(void);
 
+extern struct pci_ops dc21285_ops;
 extern int dc21285_setup(int nr, struct pci_sys_data *);
-extern struct pci_bus *dc21285_scan_bus(int nr, struct pci_sys_data *);
 extern void dc21285_preinit(void);
 extern void dc21285_postinit(void);
 
+extern struct pci_ops via82c505_ops;
 extern int via82c505_setup(int nr, struct pci_sys_data *);
-extern struct pci_bus *via82c505_scan_bus(int nr, struct pci_sys_data *);
 extern void via82c505_init(void *sysdata);
 
+extern struct pci_ops pci_v3_ops;
 extern int pci_v3_setup(int nr, struct pci_sys_data *);
-extern struct pci_bus *pci_v3_scan_bus(int nr, struct pci_sys_data *);
 extern void pci_v3_preinit(void);
 extern void pci_v3_postinit(void);
 
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index d22e35168e88..00a506f13f70 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -452,7 +452,11 @@ static void __init pcibios_init_hw(struct hw_pci *hw)
                                          &iomem_resource, sys->mem_offset);
                         }
 
-                        sys->bus = hw->scan(nr, sys);
+                        if (hw->scan)
+                                sys->bus = hw->scan(nr, sys);
+                        else
+                                sys->bus = pci_scan_root_bus(NULL, sys->busnr,
+                                                hw->ops, sys, &sys->resources);
 
                         if (!sys->bus)
                                 panic("PCI: unable to scan bus!");
diff --git a/arch/arm/mach-cns3xxx/pcie.c b/arch/arm/mach-cns3xxx/pcie.c
index 62f861bef243..311328314163 100644
--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
@@ -166,12 +166,6 @@ static struct pci_ops cns3xxx_pcie_ops = {
         .write = cns3xxx_pci_write_config,
 };
 
-static struct pci_bus *cns3xxx_pci_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, sys->busnr, &cns3xxx_pcie_ops, sys,
-                                 &sys->resources);
-}
-
 static int cns3xxx_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
         struct cns3xxx_pcie *cnspci = pdev_to_cnspci(dev);
@@ -222,8 +216,8 @@ static struct cns3xxx_pcie cns3xxx_pcie[] = {
                 .hw_pci = {
                         .domain = 0,
                         .nr_controllers = 1,
+                        .ops = &cns3xxx_pcie_ops,
                         .setup = cns3xxx_pci_setup,
-                        .scan = cns3xxx_pci_scan_bus,
                         .map_irq = cns3xxx_pcie_map_irq,
                 },
         },
@@ -264,8 +258,8 @@ static struct cns3xxx_pcie cns3xxx_pcie[] = {
                 .hw_pci = {
                         .domain = 1,
                         .nr_controllers = 1,
+                        .ops = &cns3xxx_pcie_ops,
                         .setup = cns3xxx_pci_setup,
-                        .scan = cns3xxx_pci_scan_bus,
                         .map_irq = cns3xxx_pcie_map_irq,
                 },
         },
diff --git a/arch/arm/mach-footbridge/cats-pci.c b/arch/arm/mach-footbridge/cats-pci.c
index dc13c873ff53..5cec2567c9c5 100644
--- a/arch/arm/mach-footbridge/cats-pci.c
+++ b/arch/arm/mach-footbridge/cats-pci.c
@@ -47,8 +47,8 @@ static struct hw_pci cats_pci __initdata = {
         .swizzle                = cats_no_swizzle,
         .map_irq                = cats_map_irq,
         .nr_controllers         = 1,
+        .ops                    = &dc21285_ops,
         .setup                  = dc21285_setup,
-        .scan                   = dc21285_scan_bus,
         .preinit                = dc21285_preinit,
         .postinit               = dc21285_postinit,
 };
diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index e17e11de4f5e..9d62e3381024 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -129,7 +129,7 @@ dc21285_write_config(struct pci_bus *bus, unsigned int devfn, int where,
         return PCIBIOS_SUCCESSFUL;
 }
 
-static struct pci_ops dc21285_ops = {
+struct pci_ops dc21285_ops = {
         .read   = dc21285_read_config,
         .write  = dc21285_write_config,
 };
@@ -284,11 +284,6 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys)
         return 1;
 }
 
-struct pci_bus * __init dc21285_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, 0, &dc21285_ops, sys, &sys->resources);
-}
-
 #define dc21285_request_irq(_a, _b, _c, _d, _e) \
         WARN_ON(request_irq(_a, _b, _c, _d, _e) < 0)
 
diff --git a/arch/arm/mach-footbridge/ebsa285-pci.c b/arch/arm/mach-footbridge/ebsa285-pci.c
index a5bed6e017d7..fd12d8a36dc5 100644
--- a/arch/arm/mach-footbridge/ebsa285-pci.c
+++ b/arch/arm/mach-footbridge/ebsa285-pci.c
@@ -31,8 +31,8 @@ static int __init ebsa285_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 static struct hw_pci ebsa285_pci __initdata = {
         .map_irq                = ebsa285_map_irq,
         .nr_controllers         = 1,
+        .ops                    = &dc21285_ops,
         .setup                  = dc21285_setup,
-        .scan                   = dc21285_scan_bus,
         .preinit                = dc21285_preinit,
         .postinit               = dc21285_postinit,
 };
diff --git a/arch/arm/mach-footbridge/netwinder-pci.c b/arch/arm/mach-footbridge/netwinder-pci.c
index 3f66e894a31e..0fba5134e4fe 100644
--- a/arch/arm/mach-footbridge/netwinder-pci.c
+++ b/arch/arm/mach-footbridge/netwinder-pci.c
@@ -45,8 +45,8 @@ static int __init netwinder_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 static struct hw_pci netwinder_pci __initdata = {
         .map_irq                = netwinder_map_irq,
         .nr_controllers         = 1,
+        .ops                    = &dc21285_ops,
         .setup                  = dc21285_setup,
-        .scan                   = dc21285_scan_bus,
         .preinit                = dc21285_preinit,
         .postinit               = dc21285_postinit,
 };
diff --git a/arch/arm/mach-footbridge/personal-pci.c b/arch/arm/mach-footbridge/personal-pci.c
index aeb651d914a6..5c9ee54613b2 100644
--- a/arch/arm/mach-footbridge/personal-pci.c
+++ b/arch/arm/mach-footbridge/personal-pci.c
@@ -41,8 +41,8 @@ static int __init personal_server_map_irq(const struct pci_dev *dev, u8 slot,
 static struct hw_pci personal_server_pci __initdata = {
         .map_irq                = personal_server_map_irq,
         .nr_controllers         = 1,
+        .ops                    = &dc21285_ops,
         .setup                  = dc21285_setup,
-        .scan                   = dc21285_scan_bus,
         .preinit                = dc21285_preinit,
         .postinit               = dc21285_postinit,
 };
diff --git a/arch/arm/mach-integrator/pci.c b/arch/arm/mach-integrator/pci.c
index f304deac8d05..6c1667e728f5 100644
--- a/arch/arm/mach-integrator/pci.c
+++ b/arch/arm/mach-integrator/pci.c
@@ -98,7 +98,7 @@ static struct hw_pci integrator_pci __initdata = {
         .map_irq                = integrator_map_irq,
         .setup                  = pci_v3_setup,
         .nr_controllers         = 1,
-        .scan                   = pci_v3_scan_bus,
+        .ops                    = &pci_v3_ops,
         .preinit                = pci_v3_preinit,
         .postinit               = pci_v3_postinit,
 };
diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index 67e6f9a9d1a0..b866880e82ac 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -340,7 +340,7 @@ static int v3_write_config(struct pci_bus *bus, unsigned int devfn, int where,
         return PCIBIOS_SUCCESSFUL;
 }
 
-static struct pci_ops pci_v3_ops = {
+struct pci_ops pci_v3_ops = {
         .read   = v3_read_config,
         .write  = v3_write_config,
 };
@@ -488,12 +488,6 @@ int __init pci_v3_setup(int nr, struct pci_sys_data *sys)
         return ret;
 }
 
-struct pci_bus * __init pci_v3_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, sys->busnr, &pci_v3_ops, sys,
-                                 &sys->resources);
-}
-
 /*
  * V3_LB_BASE? - local bus address
  * V3_LB_MAP?  - pci bus address
diff --git a/arch/arm/mach-iop32x/em7210.c b/arch/arm/mach-iop32x/em7210.c
index 4915013b3e4f..9f369f09c29d 100644
--- a/arch/arm/mach-iop32x/em7210.c
+++ b/arch/arm/mach-iop32x/em7210.c
@@ -104,9 +104,9 @@ em7210_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 static struct hw_pci em7210_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &iop3xx_ops,
         .setup          = iop3xx_pci_setup,
         .preinit        = iop3xx_pci_preinit,
-        .scan           = iop3xx_pci_scan_bus,
         .map_irq        = em7210_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
index 456a414c892a..c15a100ba779 100644
--- a/arch/arm/mach-iop32x/glantank.c
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -97,9 +97,9 @@ glantank_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 static struct hw_pci glantank_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &iop3xx_ops,
         .setup          = iop3xx_pci_setup,
         .preinit        = iop3xx_pci_preinit,
-        .scan           = iop3xx_pci_scan_bus,
         .map_irq        = glantank_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c
index b795e6b24fb8..ddd1c7ecfe57 100644
--- a/arch/arm/mach-iop32x/iq31244.c
+++ b/arch/arm/mach-iop32x/iq31244.c
@@ -131,9 +131,9 @@ ep80219_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 static struct hw_pci ep80219_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &iop3xx_ops,
         .setup          = iop3xx_pci_setup,
         .preinit        = iop3xx_pci_preinit,
-        .scan           = iop3xx_pci_scan_bus,
         .map_irq        = ep80219_pci_map_irq,
 };
 
@@ -166,9 +166,9 @@ iq31244_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 static struct hw_pci iq31244_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &iop3xx_ops,
         .setup          = iop3xx_pci_setup,
         .preinit        = iop3xx_pci_preinit,
-        .scan           = iop3xx_pci_scan_bus,
         .map_irq        = iq31244_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-iop32x/iq80321.c b/arch/arm/mach-iop32x/iq80321.c
index ac6d9625b216..bf155e6a3b45 100644
--- a/arch/arm/mach-iop32x/iq80321.c
+++ b/arch/arm/mach-iop32x/iq80321.c
@@ -102,9 +102,9 @@ iq80321_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 static struct hw_pci iq80321_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &iop3xx_ops,
         .setup          = iop3xx_pci_setup,
         .preinit        = iop3xx_pci_preinit_cond,
-        .scan           = iop3xx_pci_scan_bus,
         .map_irq        = iq80321_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index adf257a18f19..5a7ae91e8849 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -115,9 +115,9 @@ n2100_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 static struct hw_pci n2100_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &iop3xx_ops,
         .setup          = iop3xx_pci_setup,
         .preinit        = iop3xx_pci_preinit,
-        .scan           = iop3xx_pci_scan_bus,
         .map_irq        = n2100_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-iop33x/iq80331.c b/arch/arm/mach-iop33x/iq80331.c
index 3298a8af9126..e74a7debe793 100644
--- a/arch/arm/mach-iop33x/iq80331.c
+++ b/arch/arm/mach-iop33x/iq80331.c
@@ -85,9 +85,9 @@ iq80331_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 static struct hw_pci iq80331_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &iop3xx_ops,
         .setup          = iop3xx_pci_setup,
         .preinit        = iop3xx_pci_preinit_cond,
-        .scan           = iop3xx_pci_scan_bus,
         .map_irq        = iq80331_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-iop33x/iq80332.c b/arch/arm/mach-iop33x/iq80332.c
index 87b0e9dd74ad..e2f5beece6e8 100644
--- a/arch/arm/mach-iop33x/iq80332.c
+++ b/arch/arm/mach-iop33x/iq80332.c
@@ -85,9 +85,9 @@ iq80332_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 static struct hw_pci iq80332_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &iop3xx_ops,
         .setup          = iop3xx_pci_setup,
         .preinit        = iop3xx_pci_preinit_cond,
-        .scan           = iop3xx_pci_scan_bus,
         .map_irq        = iq80332_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp2000/enp2611.c b/arch/arm/mach-ixp2000/enp2611.c
index 4867f408617c..73df2f688813 100644
--- a/arch/arm/mach-ixp2000/enp2611.c
+++ b/arch/arm/mach-ixp2000/enp2611.c
@@ -141,13 +141,6 @@ static struct pci_ops enp2611_pci_ops = {
         .write  = enp2611_pci_write_config
 };
 
-static struct pci_bus * __init enp2611_pci_scan_bus(int nr,
-                                                struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, sys->busnr, &enp2611_pci_ops, sys,
-                                 &sys->resources);
-}
-
 static int __init enp2611_pci_map_irq(const struct pci_dev *dev, u8 slot,
         u8 pin)
 {
@@ -180,9 +173,9 @@ static int __init enp2611_pci_map_irq(const struct pci_dev *dev, u8 slot,
 
 struct hw_pci enp2611_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &enp2611_pci_ops,
         .setup          = enp2611_pci_setup,
         .preinit        = enp2611_pci_preinit,
-        .scan           = enp2611_pci_scan_bus,
         .map_irq        = enp2611_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp2000/include/mach/platform.h b/arch/arm/mach-ixp2000/include/mach/platform.h
index bb0f8dcf9ee1..6b500c0858be 100644
--- a/arch/arm/mach-ixp2000/include/mach/platform.h
+++ b/arch/arm/mach-ixp2000/include/mach/platform.h
@@ -127,10 +127,10 @@ unsigned long ixp2000_gettimeoffset(void);
 
 struct pci_sys_data;
 
+extern struct pci_ops ixp2000_pci_ops;
 u32 *ixp2000_pci_config_addr(unsigned int bus, unsigned int devfn, int where);
 void ixp2000_pci_preinit(void);
 int ixp2000_pci_setup(int, struct pci_sys_data*);
-struct pci_bus* ixp2000_pci_scan_bus(int, struct pci_sys_data*);
 int ixp2000_pci_read_config(struct pci_bus*, unsigned int, int, int, u32 *);
 int ixp2000_pci_write_config(struct pci_bus*, unsigned int, int, int, u32);
 
diff --git a/arch/arm/mach-ixp2000/ixdp2400.c b/arch/arm/mach-ixp2000/ixdp2400.c
index 915ad49e3b8f..4ec44801d303 100644
--- a/arch/arm/mach-ixp2000/ixdp2400.c
+++ b/arch/arm/mach-ixp2000/ixdp2400.c
@@ -146,10 +146,10 @@ static void ixdp2400_pci_postinit(void)
 
 static struct hw_pci ixdp2400_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp2000_pci_ops,
         .setup          = ixdp2400_pci_setup,
         .preinit        = ixdp2400_pci_preinit,
         .postinit       = ixdp2400_pci_postinit,
-        .scan           = ixp2000_pci_scan_bus,
         .map_irq        = ixdp2400_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp2000/ixdp2800.c b/arch/arm/mach-ixp2000/ixdp2800.c
index a9f1819ea049..44378c31d177 100644
--- a/arch/arm/mach-ixp2000/ixdp2800.c
+++ b/arch/arm/mach-ixp2000/ixdp2800.c
@@ -246,10 +246,10 @@ static void __init ixdp2800_pci_postinit(void)
 
 struct __initdata hw_pci ixdp2800_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp2000_pci_ops,
         .setup          = ixdp2800_pci_setup,
         .preinit        = ixdp2800_pci_preinit,
         .postinit       = ixdp2800_pci_postinit,
-        .scan           = ixp2000_pci_scan_bus,
         .map_irq        = ixdp2800_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp2000/ixdp2x01.c b/arch/arm/mach-ixp2000/ixdp2x01.c
index 5196c39cdba4..af8b801d7d59 100644
--- a/arch/arm/mach-ixp2000/ixdp2x01.c
+++ b/arch/arm/mach-ixp2000/ixdp2x01.c
@@ -327,9 +327,9 @@ static int ixdp2x01_pci_setup(int nr, struct pci_sys_data *sys)
 
 struct hw_pci ixdp2x01_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp2000_pci_ops,
         .setup          = ixdp2x01_pci_setup,
         .preinit        = ixdp2x01_pci_preinit,
-        .scan           = ixp2000_pci_scan_bus,
         .map_irq        = ixdp2x01_pci_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp2000/pci.c b/arch/arm/mach-ixp2000/pci.c
index 9c02de932fac..d706838db023 100644
--- a/arch/arm/mach-ixp2000/pci.c
+++ b/arch/arm/mach-ixp2000/pci.c
@@ -124,17 +124,11 @@ int ixp2000_pci_write_config(struct pci_bus *bus, unsigned int devfn, int where,
 }
 
 
-static struct pci_ops ixp2000_pci_ops = {
+struct pci_ops ixp2000_pci_ops = {
         .read   = ixp2000_pci_read_config,
         .write  = ixp2000_pci_write_config
 };
 
-struct pci_bus *ixp2000_pci_scan_bus(int nr, struct pci_sys_data *sysdata)
-{
-        return pci_scan_root_bus(NULL, sysdata->busnr, &ixp2000_pci_ops,
-                                 sysdata, &sysdata->resources);
-}
-
 
 int ixp2000_pci_abort_handler(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
diff --git a/arch/arm/mach-ixp23xx/include/mach/platform.h b/arch/arm/mach-ixp23xx/include/mach/platform.h
index 50de558e722e..798d8b42ab4a 100644
--- a/arch/arm/mach-ixp23xx/include/mach/platform.h
+++ b/arch/arm/mach-ixp23xx/include/mach/platform.h
@@ -37,7 +37,7 @@ void ixp23xx_sys_init(void);
 void ixp23xx_restart(char, const char *);
 int ixp23xx_pci_setup(int, struct pci_sys_data *);
 void ixp23xx_pci_preinit(void);
-struct pci_bus *ixp23xx_pci_scan_bus(int, struct pci_sys_data*);
+extern struct pci_ops ixp23xx_pci_ops;
 void ixp23xx_pci_slave_init(void);
 
 extern struct sys_timer ixp23xx_timer;
diff --git a/arch/arm/mach-ixp23xx/ixdp2351.c b/arch/arm/mach-ixp23xx/ixdp2351.c
index b0e07db5ceaf..8b48e32a8a62 100644
--- a/arch/arm/mach-ixp23xx/ixdp2351.c
+++ b/arch/arm/mach-ixp23xx/ixdp2351.c
@@ -251,9 +251,9 @@ static int __init ixdp2351_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci ixdp2351_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp23xx_pci_ops,
         .preinit        = ixp23xx_pci_preinit,
         .setup          = ixp23xx_pci_setup,
-        .scan           = ixp23xx_pci_scan_bus,
         .map_irq        = ixdp2351_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp23xx/pci.c b/arch/arm/mach-ixp23xx/pci.c
index 911f5a58e006..9211506ef556 100644
--- a/arch/arm/mach-ixp23xx/pci.c
+++ b/arch/arm/mach-ixp23xx/pci.c
@@ -140,12 +140,6 @@ struct pci_ops ixp23xx_pci_ops = {
         .write  = ixp23xx_pci_write_config,
 };
 
-struct pci_bus *ixp23xx_pci_scan_bus(int nr, struct pci_sys_data *sysdata)
-{
-        return pci_scan_root_bus(NULL, sysdata->busnr, &ixp23xx_pci_ops,
-                                 sysdata, &sysdata->resources);
-}
-
 int ixp23xx_pci_abort_handler(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
         volatile unsigned long temp;
diff --git a/arch/arm/mach-ixp23xx/roadrunner.c b/arch/arm/mach-ixp23xx/roadrunner.c
index eaaa3fa9fd05..8c0e5de3c609 100644
--- a/arch/arm/mach-ixp23xx/roadrunner.c
+++ b/arch/arm/mach-ixp23xx/roadrunner.c
@@ -118,9 +118,9 @@ static void __init roadrunner_pci_preinit(void)
 
 static struct hw_pci roadrunner_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp23xx_pci_ops,
         .preinit        = roadrunner_pci_preinit,
         .setup          = ixp23xx_pci_setup,
-        .scan           = ixp23xx_pci_scan_bus,
         .map_irq        = roadrunner_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/avila-pci.c b/arch/arm/mach-ixp4xx/avila-pci.c
index 89d1f35fff09..548c7d43ade6 100644
--- a/arch/arm/mach-ixp4xx/avila-pci.c
+++ b/arch/arm/mach-ixp4xx/avila-pci.c
@@ -65,9 +65,9 @@ static int __init avila_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci avila_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit        = avila_pci_preinit,
         .setup          = ixp4xx_setup,
-        .scan           = ixp4xx_scan_bus,
         .map_irq        = avila_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index d5719eb42591..1694f01ce2b6 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -480,12 +480,6 @@ int ixp4xx_setup(int nr, struct pci_sys_data *sys)
         return 1;
 }
 
-struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, sys->busnr, &ixp4xx_ops, sys,
-                                 &sys->resources);
-}
-
 int dma_set_coherent_mask(struct device *dev, u64 mask)
 {
         if (mask >= SZ_64M - 1)
diff --git a/arch/arm/mach-ixp4xx/coyote-pci.c b/arch/arm/mach-ixp4xx/coyote-pci.c
index d876a4f13eae..5d14ce2aee6d 100644
--- a/arch/arm/mach-ixp4xx/coyote-pci.c
+++ b/arch/arm/mach-ixp4xx/coyote-pci.c
@@ -48,9 +48,9 @@ static int __init coyote_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci coyote_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit =        coyote_pci_preinit,
         .setup =          ixp4xx_setup,
-        .scan =           ixp4xx_scan_bus,
         .map_irq =        coyote_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/dsmg600-pci.c b/arch/arm/mach-ixp4xx/dsmg600-pci.c
index 66485979337d..8dca76937723 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-pci.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-pci.c
@@ -62,9 +62,9 @@ static int __init dsmg600_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci __initdata dsmg600_pci = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit        = dsmg600_pci_preinit,
         .setup          = ixp4xx_setup,
-        .scan           = ixp4xx_scan_bus,
         .map_irq        = dsmg600_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/fsg-pci.c b/arch/arm/mach-ixp4xx/fsg-pci.c
index 528e4af678c7..fd4a8625b4ae 100644
--- a/arch/arm/mach-ixp4xx/fsg-pci.c
+++ b/arch/arm/mach-ixp4xx/fsg-pci.c
@@ -59,9 +59,9 @@ static int __init fsg_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci fsg_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit =        fsg_pci_preinit,
         .setup =          ixp4xx_setup,
-        .scan =           ixp4xx_scan_bus,
         .map_irq =        fsg_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/gateway7001-pci.c b/arch/arm/mach-ixp4xx/gateway7001-pci.c
index 1d1134b34758..d9d6cc089707 100644
--- a/arch/arm/mach-ixp4xx/gateway7001-pci.c
+++ b/arch/arm/mach-ixp4xx/gateway7001-pci.c
@@ -47,9 +47,9 @@ static int __init gateway7001_map_irq(const struct pci_dev *dev, u8 slot,
 
 struct hw_pci gateway7001_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit =        gateway7001_pci_preinit,
         .setup =          ixp4xx_setup,
-        .scan =           ixp4xx_scan_bus,
         .map_irq =        gateway7001_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/goramo_mlr.c b/arch/arm/mach-ixp4xx/goramo_mlr.c
index c97a1a82e0f6..b800a031207c 100644
--- a/arch/arm/mach-ixp4xx/goramo_mlr.c
+++ b/arch/arm/mach-ixp4xx/goramo_mlr.c
@@ -473,10 +473,10 @@ static int __init gmlr_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 static struct hw_pci gmlr_hw_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit        = gmlr_pci_preinit,
         .postinit       = gmlr_pci_postinit,
         .setup          = ixp4xx_setup,
-        .scan           = ixp4xx_scan_bus,
         .map_irq        = gmlr_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/gtwx5715-pci.c b/arch/arm/mach-ixp4xx/gtwx5715-pci.c
index 4bd8770fee84..551d114c9e14 100644
--- a/arch/arm/mach-ixp4xx/gtwx5715-pci.c
+++ b/arch/arm/mach-ixp4xx/gtwx5715-pci.c
@@ -67,9 +67,9 @@ static int __init gtwx5715_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci gtwx5715_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit =        gtwx5715_pci_preinit,
         .setup =          ixp4xx_setup,
-        .scan =           ixp4xx_scan_bus,
         .map_irq =        gtwx5715_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/include/mach/platform.h b/arch/arm/mach-ixp4xx/include/mach/platform.h
index b66bedc64de1..5bce94aacca9 100644
--- a/arch/arm/mach-ixp4xx/include/mach/platform.h
+++ b/arch/arm/mach-ixp4xx/include/mach/platform.h
@@ -130,7 +130,7 @@ extern void ixp4xx_restart(char, const char *);
 extern void ixp4xx_pci_preinit(void);
 struct pci_sys_data;
 extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
-extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
+extern struct pci_ops ixp4xx_ops;
 
 /*
  * GPIO-functions
diff --git a/arch/arm/mach-ixp4xx/ixdp425-pci.c b/arch/arm/mach-ixp4xx/ixdp425-pci.c
index 3e1a229aee0a..318424dd3c50 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-pci.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c
@@ -60,9 +60,9 @@ static int __init ixdp425_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci ixdp425_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit        = ixdp425_pci_preinit,
         .setup          = ixp4xx_setup,
-        .scan           = ixp4xx_scan_bus,
         .map_irq        = ixdp425_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/ixdpg425-pci.c b/arch/arm/mach-ixp4xx/ixdpg425-pci.c
index 5c70e9235ced..1f8717ba13dc 100644
--- a/arch/arm/mach-ixp4xx/ixdpg425-pci.c
+++ b/arch/arm/mach-ixp4xx/ixdpg425-pci.c
@@ -42,9 +42,9 @@ static int __init ixdpg425_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci ixdpg425_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit =        ixdpg425_pci_preinit,
         .setup =          ixp4xx_setup,
-        .scan =           ixp4xx_scan_bus,
         .map_irq =        ixdpg425_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/miccpt-pci.c b/arch/arm/mach-ixp4xx/miccpt-pci.c
index 8d4ba71518d4..d114ccd2017c 100644
--- a/arch/arm/mach-ixp4xx/miccpt-pci.c
+++ b/arch/arm/mach-ixp4xx/miccpt-pci.c
@@ -61,9 +61,9 @@ static int __init miccpt_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci miccpt_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit        = miccpt_pci_preinit,
         .setup          = ixp4xx_setup,
-        .scan           = ixp4xx_scan_bus,
         .map_irq        = miccpt_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/nas100d-pci.c b/arch/arm/mach-ixp4xx/nas100d-pci.c
index ba1ad203f30f..8f0eba0a6800 100644
--- a/arch/arm/mach-ixp4xx/nas100d-pci.c
+++ b/arch/arm/mach-ixp4xx/nas100d-pci.c
@@ -58,9 +58,9 @@ static int __init nas100d_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci __initdata nas100d_pci = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit        = nas100d_pci_preinit,
         .setup          = ixp4xx_setup,
-        .scan           = ixp4xx_scan_bus,
         .map_irq        = nas100d_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/nslu2-pci.c b/arch/arm/mach-ixp4xx/nslu2-pci.c
index ffc060f2fae8..032defe111aa 100644
--- a/arch/arm/mach-ixp4xx/nslu2-pci.c
+++ b/arch/arm/mach-ixp4xx/nslu2-pci.c
@@ -54,9 +54,9 @@ static int __init nslu2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci __initdata nslu2_pci = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit        = nslu2_pci_preinit,
         .setup          = ixp4xx_setup,
-        .scan           = ixp4xx_scan_bus,
         .map_irq        = nslu2_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/vulcan-pci.c b/arch/arm/mach-ixp4xx/vulcan-pci.c
index b9b1c42b7ef3..a4220fa5e0c3 100644
--- a/arch/arm/mach-ixp4xx/vulcan-pci.c
+++ b/arch/arm/mach-ixp4xx/vulcan-pci.c
@@ -56,9 +56,9 @@ static int __init vulcan_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci vulcan_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ixp4xx_ops,
         .preinit        = vulcan_pci_preinit,
         .setup          = ixp4xx_setup,
-        .scan           = ixp4xx_scan_bus,
         .map_irq        = vulcan_map_irq,
 };
 
diff --git a/arch/arm/mach-ixp4xx/wg302v2-pci.c b/arch/arm/mach-ixp4xx/wg302v2-pci.c
index f39a242746b0..c92e5b82af36 100644
--- a/arch/arm/mach-ixp4xx/wg302v2-pci.c
+++ b/arch/arm/mach-ixp4xx/wg302v2-pci.c
@@ -46,9 +46,9 @@ static int __init wg302v2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 
 struct hw_pci wg302v2_pci __initdata = {
         .nr_controllers = 1,
+        .ops = &ixp4xx_ops,
         .preinit =        wg302v2_pci_preinit,
         .setup =          ixp4xx_setup,
-        .scan =           ixp4xx_scan_bus,
         .map_irq =        wg302v2_map_irq,
 };
 
diff --git a/arch/arm/mach-ks8695/pci.c b/arch/arm/mach-ks8695/pci.c
index f2235e80171e..bb18193b4bac 100644
--- a/arch/arm/mach-ks8695/pci.c
+++ b/arch/arm/mach-ks8695/pci.c
@@ -141,12 +141,6 @@ static struct pci_ops ks8695_pci_ops = {
         .write  = ks8695_pci_writeconfig,
 };
 
-static struct pci_bus* __init ks8695_pci_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, sys->busnr, &ks8695_pci_ops, sys,
-                                 &sys->resources);
-}
-
 static struct resource pci_mem = {
         .name   = "PCI Memory space",
         .start  = KS8695_PCIMEM_PA,
@@ -302,9 +296,9 @@ static void ks8695_show_pciregs(void)
 
 static struct hw_pci ks8695_pci __initdata = {
         .nr_controllers = 1,
+        .ops            = &ks8695_pci_ops,
         .preinit        = ks8695_pci_preinit,
         .setup          = ks8695_pci_setup,
-        .scan           = ks8695_pci_scan_bus,
         .postinit       = NULL,
         .map_irq        = NULL,
 };
diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c
index f83f04a1a46b..d8f816c24a2f 100644
--- a/arch/arm/mach-pxa/cm-x2xx-pci.c
+++ b/arch/arm/mach-pxa/cm-x2xx-pci.c
@@ -183,8 +183,8 @@ static void cmx2xx_pci_preinit(void)
 static struct hw_pci cmx2xx_pci __initdata = {
         .map_irq        = cmx2xx_pci_map_irq,
         .nr_controllers = 1,
+        .ops            = &it8152_ops,
         .setup          = it8152_pci_setup,
-        .scan           = it8152_pci_scan_bus,
         .preinit        = cmx2xx_pci_preinit,
 };
 
diff --git a/arch/arm/mach-sa1100/pci-nanoengine.c b/arch/arm/mach-sa1100/pci-nanoengine.c
index b49108b890a8..ff02e2da99f2 100644
--- a/arch/arm/mach-sa1100/pci-nanoengine.c
+++ b/arch/arm/mach-sa1100/pci-nanoengine.c
@@ -129,12 +129,6 @@ static int __init pci_nanoengine_map_irq(const struct pci_dev *dev, u8 slot,
         return NANOENGINE_IRQ_GPIO_PCI;
 }
 
-struct pci_bus * __init pci_nanoengine_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, sys->busnr, &pci_nano_ops, sys,
-                                 &sys->resources);
-}
-
 static struct resource pci_io_ports =
         DEFINE_RES_IO_NAMED(0x400, 0x400, "PCI IO");
 
@@ -274,7 +268,7 @@ int __init pci_nanoengine_setup(int nr, struct pci_sys_data *sys)
 static struct hw_pci nanoengine_pci __initdata = {
         .map_irq                = pci_nanoengine_map_irq,
         .nr_controllers         = 1,
-        .scan                   = pci_nanoengine_scan_bus,
+        .ops                    = &pci_nano_ops,
         .setup                  = pci_nanoengine_setup,
 };
 
diff --git a/arch/arm/mach-shark/pci.c b/arch/arm/mach-shark/pci.c
index f7fa9374e005..9089407d5326 100644
--- a/arch/arm/mach-shark/pci.c
+++ b/arch/arm/mach-shark/pci.c
@@ -31,7 +31,7 @@ static struct hw_pci shark_pci __initdata = {
         .setup          = via82c505_setup,
         .map_irq        = shark_map_irq,
         .nr_controllers = 1,
-        .scan           = via82c505_scan_bus,
+        .ops            = &via82c505_ops,
         .preinit        = via82c505_preinit,
 };
 
diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c
index 80a93ff0d128..15c6a00000ec 100644
--- a/arch/arm/mach-versatile/pci.c
+++ b/arch/arm/mach-versatile/pci.c
@@ -303,12 +303,6 @@ int __init pci_versatile_setup(int nr, struct pci_sys_data *sys)
 }
 
 
-struct pci_bus * __init pci_versatile_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, sys->busnr, &pci_versatile_ops, sys,
-                                 &sys->resources);
-}
-
 void __init pci_versatile_preinit(void)
 {
         pcibios_min_io = 0x44000000;
@@ -347,8 +341,8 @@ static int __init versatile_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 static struct hw_pci versatile_pci __initdata = {
         .map_irq                = versatile_map_irq,
         .nr_controllers         = 1,
+        .ops                    = &pci_versatile_ops,
         .setup                  = pci_versatile_setup,
-        .scan                   = pci_versatile_scan_bus,
         .preinit                = pci_versatile_preinit,
 };
 
diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c
index 0da42058a20f..8daae9b230ea 100644
--- a/arch/arm/plat-iop/pci.c
+++ b/arch/arm/plat-iop/pci.c
@@ -160,7 +160,7 @@ iop3xx_write_config(struct pci_bus *bus, unsigned int devfn, int where,
         return PCIBIOS_SUCCESSFUL;
 }
 
-static struct pci_ops iop3xx_ops = {
+struct pci_ops iop3xx_ops = {
         .read   = iop3xx_read_config,
         .write  = iop3xx_write_config,
 };
@@ -220,12 +220,6 @@ int iop3xx_pci_setup(int nr, struct pci_sys_data *sys)
         return 1;
 }
 
-struct pci_bus *iop3xx_pci_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, sys->busnr, &iop3xx_ops, sys,
-                                 &sys->resources);
-}
-
 void __init iop3xx_atu_setup(void)
 {
         /* BAR 0 ( Disabled ) */