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path: root/arch/powerpc/sysdev/indirect_pci.c
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Diffstat (limited to 'arch/powerpc/sysdev/indirect_pci.c')
-rw-r--r--arch/powerpc/sysdev/indirect_pci.c44
1 files changed, 34 insertions, 10 deletions
diff --git a/arch/powerpc/sysdev/indirect_pci.c b/arch/powerpc/sysdev/indirect_pci.c
index e71488469704..c7e6e859b393 100644
--- a/arch/powerpc/sysdev/indirect_pci.c
+++ b/arch/powerpc/sysdev/indirect_pci.c
@@ -33,18 +33,27 @@ indirect_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
33 struct pci_controller *hose = bus->sysdata; 33 struct pci_controller *hose = bus->sysdata;
34 volatile void __iomem *cfg_data; 34 volatile void __iomem *cfg_data;
35 u8 cfg_type = 0; 35 u8 cfg_type = 0;
36 u32 bus_no, reg;
36 37
37 if (ppc_md.pci_exclude_device) 38 if (ppc_md.pci_exclude_device)
38 if (ppc_md.pci_exclude_device(bus->number, devfn)) 39 if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
39 return PCIBIOS_DEVICE_NOT_FOUND; 40 return PCIBIOS_DEVICE_NOT_FOUND;
40 41
41 if (hose->set_cfg_type) 42 if (hose->indirect_type & PPC_INDIRECT_TYPE_SET_CFG_TYPE)
42 if (bus->number != hose->first_busno) 43 if (bus->number != hose->first_busno)
43 cfg_type = 1; 44 cfg_type = 1;
44 45
45 PCI_CFG_OUT(hose->cfg_addr, 46 bus_no = (bus->number == hose->first_busno) ?
46 (0x80000000 | ((bus->number - hose->bus_offset) << 16) 47 hose->self_busno : bus->number;
47 | (devfn << 8) | ((offset & 0xfc) | cfg_type))); 48
49 if (hose->indirect_type & PPC_INDIRECT_TYPE_EXT_REG)
50 reg = ((offset & 0xf00) << 16) | (offset & 0xfc);
51 else
52 reg = offset & 0xfc;
53
54 PCI_CFG_OUT(hose->cfg_addr,
55 (0x80000000 | (bus_no << 16)
56 | (devfn << 8) | reg | cfg_type));
48 57
49 /* 58 /*
50 * Note: the caller has already checked that offset is 59 * Note: the caller has already checked that offset is
@@ -72,18 +81,33 @@ indirect_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
72 struct pci_controller *hose = bus->sysdata; 81 struct pci_controller *hose = bus->sysdata;
73 volatile void __iomem *cfg_data; 82 volatile void __iomem *cfg_data;
74 u8 cfg_type = 0; 83 u8 cfg_type = 0;
84 u32 bus_no, reg;
75 85
76 if (ppc_md.pci_exclude_device) 86 if (ppc_md.pci_exclude_device)
77 if (ppc_md.pci_exclude_device(bus->number, devfn)) 87 if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
78 return PCIBIOS_DEVICE_NOT_FOUND; 88 return PCIBIOS_DEVICE_NOT_FOUND;
79 89
80 if (hose->set_cfg_type) 90 if (hose->indirect_type & PPC_INDIRECT_TYPE_SET_CFG_TYPE)
81 if (bus->number != hose->first_busno) 91 if (bus->number != hose->first_busno)
82 cfg_type = 1; 92 cfg_type = 1;
83 93
84 PCI_CFG_OUT(hose->cfg_addr, 94 bus_no = (bus->number == hose->first_busno) ?
85 (0x80000000 | ((bus->number - hose->bus_offset) << 16) 95 hose->self_busno : bus->number;
86 | (devfn << 8) | ((offset & 0xfc) | cfg_type))); 96
97 if (hose->indirect_type & PPC_INDIRECT_TYPE_EXT_REG)
98 reg = ((offset & 0xf00) << 16) | (offset & 0xfc);
99 else
100 reg = offset & 0xfc;
101
102 PCI_CFG_OUT(hose->cfg_addr,
103 (0x80000000 | (bus_no << 16)
104 | (devfn << 8) | reg | cfg_type));
105
106 /* surpress setting of PCI_PRIMARY_BUS */
107 if (hose->indirect_type & PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS)
108 if ((offset == PCI_PRIMARY_BUS) &&
109 (bus->number == hose->first_busno))
110 val &= 0xffffff00;
87 111
88 /* 112 /*
89 * Note: the caller has already checked that offset is 113 * Note: the caller has already checked that offset is