1 files changed, 121 insertions, 27 deletions

diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
index d9bf5aba96cb..e72c2a60853c 100644
--- a/include/asm-powerpc/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h
@@ -2,12 +2,91 @@
 #define _ASM_POWERPC_PCI_BRIDGE_H
 #ifdef __KERNEL__
 
+#include <linux/pci.h>
+#include <linux/list.h>
+#include <linux/ioport.h>
+
 #ifndef CONFIG_PPC64
-#include <asm-ppc/pci-bridge.h>
+
+struct device_node;
+struct pci_controller;
+
+/*
+ * Structure of a PCI controller (host bridge)
+ */
+struct pci_controller {
+        struct pci_bus *bus;
+        char is_dynamic;
+        void *arch_data;
+        struct list_head list_node;
+        struct device *parent;
+
+        int first_busno;
+        int last_busno;
+        int self_busno;
+
+        void __iomem *io_base_virt;
+        resource_size_t io_base_phys;
+
+        /* Some machines (PReP) have a non 1:1 mapping of
+         * the PCI memory space in the CPU bus space
+         */
+        resource_size_t pci_mem_offset;
+
+        struct pci_ops *ops;
+        volatile unsigned int __iomem *cfg_addr;
+        volatile void __iomem *cfg_data;
+
+        /*
+         * Used for variants of PCI indirect handling and possible quirks:
+         *  SET_CFG_TYPE - used on 4xx or any PHB that does explicit type0/1
+         *  EXT_REG - provides access to PCI-e extended registers
+         *  SURPRESS_PRIMARY_BUS - we surpress the setting of PCI_PRIMARY_BUS
+         *   on Freescale PCI-e controllers since they used the PCI_PRIMARY_BUS
+         *   to determine which bus number to match on when generating type0
+         *   config cycles
+         */
+#define PPC_INDIRECT_TYPE_SET_CFG_TYPE          (0x00000001)
+#define PPC_INDIRECT_TYPE_EXT_REG               (0x00000002)
+#define PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS  (0x00000004)
+        u32 indirect_type;
+
+        /* Currently, we limit ourselves to 1 IO range and 3 mem
+         * ranges since the common pci_bus structure can't handle more
+         */
+        struct resource io_resource;
+        struct resource mem_resources[3];
+        int global_number;              /* PCI domain number */
+};
+
+static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
+{
+        return bus->sysdata;
+}
+
+/* These are used for config access before all the PCI probing
+   has been done. */
+int early_read_config_byte(struct pci_controller *hose, int bus, int dev_fn,
+                           int where, u8 *val);
+int early_read_config_word(struct pci_controller *hose, int bus, int dev_fn,
+                           int where, u16 *val);
+int early_read_config_dword(struct pci_controller *hose, int bus, int dev_fn,
+                            int where, u32 *val);
+int early_write_config_byte(struct pci_controller *hose, int bus, int dev_fn,
+                            int where, u8 val);
+int early_write_config_word(struct pci_controller *hose, int bus, int dev_fn,
+                            int where, u16 val);
+int early_write_config_dword(struct pci_controller *hose, int bus, int dev_fn,
+                             int where, u32 val);
+
+extern void setup_indirect_pci_nomap(struct pci_controller* hose,
+                               void __iomem *cfg_addr, void __iomem *cfg_data);
+extern void setup_indirect_pci(struct pci_controller* hose,
+                               u32 cfg_addr, u32 cfg_data);
+extern void setup_grackle(struct pci_controller *hose);
+
 #else
 
-#include <linux/pci.h>
-#include <linux/list.h>
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -31,6 +110,7 @@ struct pci_controller {
         int last_busno;
 
         void __iomem *io_base_virt;
+        void *io_base_alloc;
         resource_size_t io_base_phys;
 
         /* Some machines have a non 1:1 mapping of
@@ -48,8 +128,7 @@ struct pci_controller {
          */
         struct resource io_resource;
         struct resource mem_resources[3];
-        int global_number;              
-        int local_number;               
+        int global_number;
         unsigned long buid;
         unsigned long dma_window_base_cur;
         unsigned long dma_window_size;
@@ -70,19 +149,22 @@ struct pci_dn {
         int     devfn;                  /* pci device and function number */
         int     class_code;             /* pci device class */
 
-#ifdef CONFIG_PPC_PSERIES
+        struct  pci_controller *phb;    /* for pci devices */
+        struct  iommu_table *iommu_table;       /* for phb's or bridges */
+        struct  pci_dev *pcidev;        /* back-pointer to the pci device */
+        struct  device_node *node;      /* back-pointer to the device_node */
+
+        int     pci_ext_config_space;   /* for pci devices */
+
+#ifdef CONFIG_EEH
         int     eeh_mode;               /* See eeh.h for possible EEH_MODEs */
         int     eeh_config_addr;
         int     eeh_pe_config_addr; /* new-style partition endpoint address */
         int     eeh_check_count;        /* # times driver ignored error */
         int     eeh_freeze_count;       /* # times this device froze up. */
-#endif
-        int     pci_ext_config_space;   /* for pci devices */
-        struct  pci_controller *phb;    /* for pci devices */
-        struct  iommu_table *iommu_table;       /* for phb's or bridges */
-        struct  pci_dev *pcidev;        /* back-pointer to the pci device */
-        struct  device_node *node;      /* back-pointer to the device_node */
+        int     eeh_false_positives;    /* # times this device reported #ff's */
         u32     config_space[16];       /* saved PCI config space */
+#endif
 };
 
 /* Get the pointer to a device_node's pci_dn */
@@ -128,9 +210,6 @@ static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
 /** Find the bus corresponding to the indicated device node */
 struct pci_bus * pcibios_find_pci_bus(struct device_node *dn);
 
-extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
-                                         struct device_node *dev, int primary);
-
 /** Remove all of the PCI devices under this bus */
 void pcibios_remove_pci_devices(struct pci_bus *bus);
 
@@ -148,13 +227,38 @@ static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
         return PCI_DN(busdn)->phb;
 }
 
+extern void pcibios_free_controller(struct pci_controller *phb);
+
+extern void isa_bridge_find_early(struct pci_controller *hose);
+
+extern int pcibios_unmap_io_space(struct pci_bus *bus);
+extern int pcibios_map_io_space(struct pci_bus *bus);
+
+/* Return values for ppc_md.pci_probe_mode function */
+#define PCI_PROBE_NONE          -1      /* Don't look at this bus at all */
+#define PCI_PROBE_NORMAL        0       /* Do normal PCI probing */
+#define PCI_PROBE_DEVTREE       1       /* Instantiate from device tree */
+
+#ifdef CONFIG_NUMA
+#define PHB_SET_NODE(PHB, NODE)         ((PHB)->node = (NODE))
+#else
+#define PHB_SET_NODE(PHB, NODE)         ((PHB)->node = -1)
+#endif
+
+#endif /* CONFIG_PPC64 */
+
+/* Get the PCI host controller for an OF device */
 extern struct pci_controller*
 pci_find_hose_for_OF_device(struct device_node* node);
 
+/* Fill up host controller resources from the OF node */
+extern void
+pci_process_bridge_OF_ranges(struct pci_controller *hose,
+                           struct device_node *dev, int primary);
+
+/* Allocate a new PCI host bridge structure */
 extern struct pci_controller *
 pcibios_alloc_controller(struct device_node *dev);
-extern void pcibios_free_controller(struct pci_controller *phb);
-
 #ifdef CONFIG_PCI
 extern unsigned long pci_address_to_pio(phys_addr_t address);
 #else
@@ -164,17 +268,7 @@ static inline unsigned long pci_address_to_pio(phys_addr_t address)
 }
 #endif
 
-/* Return values for ppc_md.pci_probe_mode function */
-#define PCI_PROBE_NONE          -1      /* Don't look at this bus at all */
-#define PCI_PROBE_NORMAL        0       /* Do normal PCI probing */
-#define PCI_PROBE_DEVTREE       1       /* Instantiate from device tree */
 
-#ifdef CONFIG_NUMA
-#define PHB_SET_NODE(PHB, NODE)         ((PHB)->node = (NODE))
-#else
-#define PHB_SET_NODE(PHB, NODE)         ((PHB)->node = -1)
-#endif
 
-#endif /* CONFIG_PPC64 */
 #endif /* __KERNEL__ */
 #endif