#ifndef _PPC_PROM_H
#define _PPC_PROM_H
-/* This is used in arch/ppc/mm/mem_pieces.h */
+#include <linux/config.h>
+#include <linux/types.h>
+
+typedef u32 phandle;
+typedef u32 ihandle;
+
+struct address_range {
+ unsigned int space;
+ unsigned int address;
+ unsigned int size;
+};
+
+struct interrupt_info {
+ int line;
+ int sense; /* +ve/-ve logic, edge or level, etc. */
+};
+
struct reg_property {
unsigned int address;
unsigned int size;
};
+struct property {
+ char *name;
+ int length;
+ unsigned char *value;
+ struct property *next;
+};
+
+/*
+ * Note: don't change this structure for now or you'll break BootX !
+ */
+struct device_node {
+ char *name;
+ char *type;
+ phandle node;
+ int n_addrs;
+ struct address_range *addrs;
+ int n_intrs;
+ struct interrupt_info *intrs;
+ char *full_name;
+ struct property *properties;
+ struct device_node *parent;
+ struct device_node *child;
+ struct device_node *sibling;
+ struct device_node *next; /* next device of same type */
+ struct device_node *allnext; /* next in list of all nodes */
+};
+
+struct prom_args;
+typedef void (*prom_entry)(struct prom_args *);
+
+/* OBSOLETE: Old style node lookup */
+extern struct device_node *find_devices(const char *name);
+extern struct device_node *find_type_devices(const char *type);
+extern struct device_node *find_path_device(const char *path);
+extern struct device_node *find_compatible_devices(const char *type,
+ const char *compat);
+extern struct device_node *find_all_nodes(void);
+
+/* New style node lookup */
+extern struct device_node *of_find_node_by_name(struct device_node *from,
+ const char *name);
+extern struct device_node *of_find_node_by_type(struct device_node *from,
+ const char *type);
+extern struct device_node *of_find_compatible_node(struct device_node *from,
+ const char *type, const char *compat);
+extern struct device_node *of_find_node_by_path(const char *path);
+extern struct device_node *of_find_all_nodes(struct device_node *prev);
+extern struct device_node *of_get_parent(const struct device_node *node);
+extern struct device_node *of_get_next_child(const struct device_node *node,
+ struct device_node *prev);
+extern struct device_node *of_node_get(struct device_node *node);
+extern void of_node_put(struct device_node *node);
+
+/* Other Prototypes */
+extern void abort(void);
+extern unsigned long prom_init(int, int, prom_entry);
+extern void prom_print(const char *msg);
+extern void relocate_nodes(void);
+extern void finish_device_tree(void);
+extern int device_is_compatible(struct device_node *device, const char *);
+extern int machine_is_compatible(const char *compat);
+extern unsigned char *get_property(struct device_node *node, const char *name,
+ int *lenp);
+extern int prom_add_property(struct device_node* np, struct property* prop);
+extern void prom_get_irq_senses(unsigned char *, int, int);
+extern int prom_n_addr_cells(struct device_node* np);
+extern int prom_n_size_cells(struct device_node* np);
+
+extern struct resource*
+request_OF_resource(struct device_node* node, int index, const char* name_postfix);
+extern int release_OF_resource(struct device_node* node, int index);
+
+extern void print_properties(struct device_node *node);
+extern int call_rtas(const char *service, int nargs, int nret,
+ unsigned long *outputs, ...);
+
/*
- * These macros assist in performing the address calculations that we
- * need to do to access data when the kernel is running at an address
- * that is different from the address that the kernel is linked at.
- * The reloc_offset() function returns the difference between these
- * two addresses and the macros simplify the process of adding or
- * subtracting this offset to/from pointer values.
+ * PCI <-> OF matching functions
+ */
+struct pci_bus;
+struct pci_dev;
+extern int pci_device_from_OF_node(struct device_node *node,
+ u8* bus, u8* devfn);
+extern struct device_node* pci_busdev_to_OF_node(struct pci_bus *, int);
+extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
+extern void pci_create_OF_bus_map(void);
+
+/*
+ * When we call back to the Open Firmware client interface, we usually
+ * have to do that before the kernel is relocated to its final location
+ * (this is because we can't use OF after we have overwritten the
+ * exception vectors with our exception handlers). These macros assist
+ * in performing the address calculations that we need to do to access
+ * data when the kernel is running at an address that is different from
+ * the address that the kernel is linked at. The reloc_offset() function
+ * returns the difference between these two addresses and the macros
+ * simplify the process of adding or subtracting this offset to/from
+ * pointer values. See arch/ppc/kernel/prom.c for how these are used.
*/
extern unsigned long reloc_offset(void);
extern unsigned long add_reloc_offset(unsigned long);
#define PTRRELOC(x) ((typeof(x))add_reloc_offset((unsigned long)(x)))
#define PTRUNRELOC(x) ((typeof(x))sub_reloc_offset((unsigned long)(x)))
+
+/*
+ * OF address retreival & translation
+ */
+
+
+/* Translate an OF address block into a CPU physical address
+ */
+#define OF_BAD_ADDR ((u64)-1)
+extern u64 of_translate_address(struct device_node *np, u32 *addr);
+
+/* Extract an address from a device, returns the region size and
+ * the address space flags too. The PCI version uses a BAR number
+ * instead of an absolute index
+ */
+extern u32 *of_get_address(struct device_node *dev, int index,
+ u64 *size, unsigned int *flags);
+extern u32 *of_get_pci_address(struct device_node *dev, int bar_no,
+ u64 *size, unsigned int *flags);
+
+/* Get an address as a resource. Note that if your address is
+ * a PIO address, the conversion will fail if the physical address
+ * can't be internally converted to an IO token with
+ * pci_address_to_pio(), that is because it's either called to early
+ * or it can't be matched to any host bridge IO space
+ */
+extern int of_address_to_resource(struct device_node *dev, int index,
+ struct resource *r);
+extern int of_pci_address_to_resource(struct device_node *dev, int bar,
+ struct resource *r);
+
+#ifndef CONFIG_PPC_OF
/*
- * Fallback definitions since we don't support OF in arch/ppc any more.
+ * Fallback definitions for builds where we don't have prom.c included.
*/
#define machine_is_compatible(x) 0
#define of_find_compatible_node(f, t, c) NULL
#define get_property(p, n, l) NULL
+#endif
#endif /* _PPC_PROM_H */
#endif /* __KERNEL__ */
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