97671e4b29
For now, we need these declarations that we moved from C code in the asm-ppc64 versions of these headers as well as the asm-powerpc versions. The asm-ppc64 versions will be disappearing shortly. Signed-off-by: Paul Mackerras <paulus@samba.org>
221 lines
6.6 KiB
C
221 lines
6.6 KiB
C
#ifndef _PPC64_PROM_H
|
|
#define _PPC64_PROM_H
|
|
|
|
/*
|
|
* Definitions for talking to the Open Firmware PROM on
|
|
* Power Macintosh computers.
|
|
*
|
|
* Copyright (C) 1996 Paul Mackerras.
|
|
*
|
|
* Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
#include <linux/config.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <asm/atomic.h>
|
|
|
|
#define PTRRELOC(x) ((typeof(x))((unsigned long)(x) - offset))
|
|
#define PTRUNRELOC(x) ((typeof(x))((unsigned long)(x) + offset))
|
|
#define RELOC(x) (*PTRRELOC(&(x)))
|
|
|
|
/* Definitions used by the flattened device tree */
|
|
#define OF_DT_HEADER 0xd00dfeed /* marker */
|
|
#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
|
|
#define OF_DT_END_NODE 0x2 /* End node */
|
|
#define OF_DT_PROP 0x3 /* Property: name off, size,
|
|
* content */
|
|
#define OF_DT_NOP 0x4 /* nop */
|
|
#define OF_DT_END 0x9
|
|
|
|
#define OF_DT_VERSION 0x10
|
|
|
|
/*
|
|
* This is what gets passed to the kernel by prom_init or kexec
|
|
*
|
|
* The dt struct contains the device tree structure, full pathes and
|
|
* property contents. The dt strings contain a separate block with just
|
|
* the strings for the property names, and is fully page aligned and
|
|
* self contained in a page, so that it can be kept around by the kernel,
|
|
* each property name appears only once in this page (cheap compression)
|
|
*
|
|
* the mem_rsvmap contains a map of reserved ranges of physical memory,
|
|
* passing it here instead of in the device-tree itself greatly simplifies
|
|
* the job of everybody. It's just a list of u64 pairs (base/size) that
|
|
* ends when size is 0
|
|
*/
|
|
struct boot_param_header
|
|
{
|
|
u32 magic; /* magic word OF_DT_HEADER */
|
|
u32 totalsize; /* total size of DT block */
|
|
u32 off_dt_struct; /* offset to structure */
|
|
u32 off_dt_strings; /* offset to strings */
|
|
u32 off_mem_rsvmap; /* offset to memory reserve map */
|
|
u32 version; /* format version */
|
|
u32 last_comp_version; /* last compatible version */
|
|
/* version 2 fields below */
|
|
u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
|
|
/* version 3 fields below */
|
|
u32 dt_strings_size; /* size of the DT strings block */
|
|
};
|
|
|
|
|
|
|
|
typedef u32 phandle;
|
|
typedef u32 ihandle;
|
|
|
|
struct address_range {
|
|
unsigned long space;
|
|
unsigned long address;
|
|
unsigned long size;
|
|
};
|
|
|
|
struct interrupt_info {
|
|
int line;
|
|
int sense; /* +ve/-ve logic, edge or level, etc. */
|
|
};
|
|
|
|
struct pci_address {
|
|
u32 a_hi;
|
|
u32 a_mid;
|
|
u32 a_lo;
|
|
};
|
|
|
|
struct isa_address {
|
|
u32 a_hi;
|
|
u32 a_lo;
|
|
};
|
|
|
|
struct isa_range {
|
|
struct isa_address isa_addr;
|
|
struct pci_address pci_addr;
|
|
unsigned int size;
|
|
};
|
|
|
|
struct reg_property {
|
|
unsigned long address;
|
|
unsigned long size;
|
|
};
|
|
|
|
struct reg_property32 {
|
|
unsigned int address;
|
|
unsigned int size;
|
|
};
|
|
|
|
struct reg_property64 {
|
|
unsigned long address;
|
|
unsigned long size;
|
|
};
|
|
|
|
struct property {
|
|
char *name;
|
|
int length;
|
|
unsigned char *value;
|
|
struct property *next;
|
|
};
|
|
|
|
struct device_node {
|
|
char *name;
|
|
char *type;
|
|
phandle node;
|
|
phandle linux_phandle;
|
|
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 proc_dir_entry *pde; /* this node's proc directory */
|
|
struct kref kref;
|
|
unsigned long _flags;
|
|
void *data;
|
|
#ifdef CONFIG_PPC_ISERIES
|
|
struct list_head Device_List;
|
|
#endif
|
|
};
|
|
|
|
extern struct device_node *of_chosen;
|
|
|
|
/* flag descriptions */
|
|
#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
|
|
|
|
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
|
|
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
|
|
|
|
/*
|
|
* Until 32-bit ppc can add proc_dir_entries to its device_node
|
|
* definition, we cannot refer to pde, name_link, and addr_link
|
|
* in arch-independent code.
|
|
*/
|
|
#define HAVE_ARCH_DEVTREE_FIXUPS
|
|
|
|
static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
|
|
{
|
|
dn->pde = de;
|
|
}
|
|
|
|
|
|
/* OBSOLETE: Old stlye 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_node_by_phandle(phandle handle);
|
|
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);
|
|
|
|
/* For scanning the flat device-tree at boot time */
|
|
int __init of_scan_flat_dt(int (*it)(unsigned long node,
|
|
const char *uname, int depth,
|
|
void *data),
|
|
void *data);
|
|
void* __init of_get_flat_dt_prop(unsigned long node, const char *name,
|
|
unsigned long *size);
|
|
|
|
/* For updating the device tree at runtime */
|
|
extern void of_attach_node(struct device_node *);
|
|
extern void of_detach_node(const struct device_node *);
|
|
|
|
/* Other Prototypes */
|
|
extern unsigned long prom_init(unsigned long, unsigned long, unsigned long,
|
|
unsigned long, unsigned long);
|
|
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 machine_is_compatible(const char *compat);
|
|
extern unsigned char *get_property(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);
|
|
extern int prom_n_intr_cells(struct device_node* np);
|
|
extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
|
|
extern int prom_add_property(struct device_node* np, struct property* prop);
|
|
|
|
#endif /* _PPC64_PROM_H */
|