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authorKumar Gala <galak@kernel.crashing.org>2007-06-27 00:16:25 -0500
committerKumar Gala <galak@kernel.crashing.org>2007-06-29 01:58:31 -0500
commit5531e41bf41b5bc34e3cb57af89b58a24fc0dd8d (patch)
tree230302da852ef653e6e940906d01def6fe1cf8bf /include/asm-powerpc/pci-bridge.h
parent20243c72a8564ccd22437fd1bda16ca5bccd5701 (diff)
downloadop-kernel-dev-5531e41bf41b5bc34e3cb57af89b58a24fc0dd8d.zip
op-kernel-dev-5531e41bf41b5bc34e3cb57af89b58a24fc0dd8d.tar.gz
[POWERPC] Merge asm-ppc/pci-bridge.h into asm-power/pci-bridge.h
Moved bits need for ppc32 from asm-ppc/pci-bridge.h into asm-powerpc/pci-bridge.h. Removed ARCH=powerpc specific bits (and comments related to ARCH=ppc) from asm-ppc/pci-bridge.h as its only used on ARCH=ppc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'include/asm-powerpc/pci-bridge.h')
-rw-r--r--include/asm-powerpc/pci-bridge.h138
1 files changed, 120 insertions, 18 deletions
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
index 5261527..b032593 100644
--- a/include/asm-powerpc/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h
@@ -3,7 +3,103 @@
#ifdef __KERNEL__
#ifndef CONFIG_PPC64
-#include <asm-ppc/pci-bridge.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+
+struct device_node;
+struct pci_controller;
+
+/*
+ * pci_io_base returns the memory address at which you can access
+ * the I/O space for PCI bus number `bus' (or NULL on error).
+ */
+extern void __iomem *pci_bus_io_base(unsigned int bus);
+extern unsigned long pci_bus_io_base_phys(unsigned int bus);
+extern unsigned long pci_bus_mem_base_phys(unsigned int bus);
+
+/* Allocate a new PCI host bridge structure */
+extern struct pci_controller* pcibios_alloc_controller(void);
+
+/* Helper function for setting up resources */
+extern void pci_init_resource(struct resource *res, resource_size_t start,
+ resource_size_t end, int flags, char *name);
+
+/* Get the PCI host controller for a bus */
+extern struct pci_controller* pci_bus_to_hose(int bus);
+
+/*
+ * Structure of a PCI controller (host bridge)
+ */
+struct pci_controller {
+ struct pci_bus *bus;
+ void *arch_data;
+ int index; /* PCI domain number */
+ struct pci_controller *next;
+ 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];
+};
+
+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>
@@ -49,8 +145,8 @@ struct pci_controller {
*/
struct resource io_resource;
struct resource mem_resources[3];
- int global_number;
- int local_number;
+ int global_number;
+ int local_number;
unsigned long buid;
unsigned long dma_window_base_cur;
unsigned long dma_window_size;
@@ -132,9 +228,6 @@ 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);
@@ -152,22 +245,10 @@ static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
return PCI_DN(busdn)->phb;
}
-extern struct pci_controller*
-pci_find_hose_for_OF_device(struct device_node* node);
-
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
-static inline unsigned long pci_address_to_pio(phys_addr_t address)
-{
- return (unsigned long)-1;
-}
-#endif
-
extern void isa_bridge_find_early(struct pci_controller *hose);
extern int pcibios_unmap_io_space(struct pci_bus *bus);
@@ -185,5 +266,26 @@ extern int pcibios_map_io_space(struct pci_bus *bus);
#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);
+
+#ifdef CONFIG_PCI
+extern unsigned long pci_address_to_pio(phys_addr_t address);
+#else
+static inline unsigned long pci_address_to_pio(phys_addr_t address)
+{
+ return (unsigned long)-1;
+}
+#endif
+
+
+
#endif /* __KERNEL__ */
#endif
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