Merge branch 'linux-2.6' into for-linus

[powerpc.git] / include / asm-powerpc / prom.h

diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index d0fa1b9..0afee17 100644 (file)
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -17,6 +17,7 @@
  */
 #include <linux/types.h>
 #include <linux/proc_fs.h>
+#include <linux/platform_device.h>
 #include <asm/atomic.h>
 
 /* Definitions used by the flattened device tree */
@@ -72,8 +73,8 @@ struct property {
 };
 
 struct device_node {
-       char    *name;
-       char    *type;
+       const char *name;
+       const char *type;
        phandle node;
        phandle linux_phandle;
        char    *full_name;
@@ -134,7 +135,7 @@ 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 property *of_find_property(struct device_node *np,
+extern struct property *of_find_property(const struct device_node *np,
                                         const char *name,
                                         int *lenp);
 extern struct device_node *of_node_get(struct device_node *node);
@@ -158,10 +159,12 @@ extern void of_detach_node(const struct device_node *);
 extern void finish_device_tree(void);
 extern void unflatten_device_tree(void);
 extern void early_init_devtree(void *);
-extern int device_is_compatible(struct device_node *device, const char *);
+extern int device_is_compatible(const struct device_node *device,
+                               const char *);
 extern int machine_is_compatible(const char *compat);
-extern void *get_property(struct device_node *node, const char *name,
-               int *lenp);
+extern const void *get_property(const struct device_node *node,
+                               const char *name,
+                               int *lenp);
 extern void print_properties(struct device_node *node);
 extern int prom_n_addr_cells(struct device_node* np);
 extern int prom_n_size_cells(struct device_node* np);
@@ -197,8 +200,8 @@ extern int release_OF_resource(struct device_node* node, int index);
  */
 
 
-/* Helper to read a big number */
-static inline u64 of_read_number(u32 *cell, int size)
+/* Helper to read a big number; size is in cells (not bytes) */
+static inline u64 of_read_number(const u32 *cell, int size)
 {
        u64 r = 0;
        while (size--)
@@ -206,18 +209,28 @@ static inline u64 of_read_number(u32 *cell, int size)
        return r;
 }
 
+/* Like of_read_number, but we want an unsigned long result */
+#ifdef CONFIG_PPC32
+static inline unsigned long of_read_ulong(const u32 *cell, int size)
+{
+       return cell[size-1];
+}
+#else
+#define of_read_ulong(cell, size)      of_read_number(cell, size)
+#endif
+
 /* 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);
+extern u64 of_translate_address(struct device_node *np, const 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,
+extern const 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,
+extern const 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
@@ -234,7 +247,7 @@ extern int of_pci_address_to_resource(struct device_node *dev, int bar,
 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
  * size parameters.
  */
-void of_parse_dma_window(struct device_node *dn, unsigned char *dma_window_prop,
+void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
                unsigned long *busno, unsigned long *phys, unsigned long *size);
 
 extern void kdump_move_device_tree(void);
@@ -259,7 +272,7 @@ struct of_irq {
        u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
 };
 
-/***
+/**
  * of_irq_map_init - Initialize the irq remapper
  * @flags:     flags defining workarounds to enable
  *
@@ -272,7 +285,7 @@ struct of_irq {
 
 extern void of_irq_map_init(unsigned int flags);
 
-/***
+/**
  * of_irq_map_raw - Low level interrupt tree parsing
  * @parent:    the device interrupt parent
  * @intspec:   interrupt specifier ("interrupts" property of the device)
@@ -289,12 +302,12 @@ extern void of_irq_map_init(unsigned int flags);
  *
  */
 
-extern int of_irq_map_raw(struct device_node *parent, u32 *intspec,
-                         u32 ointsize, u32 *addr,
+extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
+                         u32 ointsize, const u32 *addr,
                          struct of_irq *out_irq);
 
 
-/***
+/**
  * of_irq_map_one - Resolve an interrupt for a device
  * @device:    the device whose interrupt is to be resolved
  * @index:             index of the interrupt to resolve
@@ -307,7 +320,7 @@ extern int of_irq_map_raw(struct device_node *parent, u32 *intspec,
 extern int of_irq_map_one(struct device_node *device, int index,
                          struct of_irq *out_irq);
 
-/***
+/**
  * of_irq_map_pci - Resolve the interrupt for a PCI device
  * @pdev:      the device whose interrupt is to be resolved
  * @out_irq:   structure of_irq filled by this function
@@ -321,6 +334,20 @@ extern int of_irq_map_one(struct device_node *device, int index,
 struct pci_dev;
 extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
 
+static inline int of_irq_to_resource(struct device_node *dev, int index, struct resource *r)
+{
+       int irq = irq_of_parse_and_map(dev, index);
+
+       /* Only dereference the resource if both the
+        * resource and the irq are valid. */
+       if (r && irq != NO_IRQ) {
+               r->start = r->end = irq;
+               r->flags = IORESOURCE_IRQ;
+       }
+
+       return irq;
+}
+
 
 #endif /* __KERNEL__ */
 #endif /* _POWERPC_PROM_H */