1 #ifndef _PPC64_PROM_H 2 #define _PPC64_PROM_H 3 4 /* 5 * Definitions for talking to the Open Firmware PROM on 6 * Power Macintosh computers. 7 * 8 * Copyright (C) 1996 Paul Mackerras. 9 * 10 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp. 11 * 12 * This program is free software; you can redistribute it and/or 13 * modify it under the terms of the GNU General Public License 14 * as published by the Free Software Foundation; either version 15 * 2 of the License, or (at your option) any later version. 16 */ 17 18 #define PTRRELOC(x) ((typeof(x))((unsigned long)(x) - offset)) 19 #define PTRUNRELOC(x) ((typeof(x))((unsigned long)(x) + offset)) 20 #define RELOC(x) (*PTRRELOC(&(x))) 21 22 #define LONG_LSW(X) (((unsigned long)X) & 0xffffffff) 23 #define LONG_MSW(X) (((unsigned long)X) >> 32) 24 25 typedef u32 phandle; 26 typedef void *ihandle; 27 typedef u32 phandle32; 28 typedef u32 ihandle32; 29 30 extern char *prom_display_paths[]; 31 extern unsigned int prom_num_displays; 32 33 struct address_range { 34 unsigned long space; 35 unsigned long address; 36 unsigned long size; 37 }; 38 39 struct interrupt_info { 40 int line; 41 int sense; /* +ve/-ve logic, edge or level, etc. */ 42 }; 43 44 struct pci_address { 45 u32 a_hi; 46 u32 a_mid; 47 u32 a_lo; 48 }; 49 50 struct pci_range32 { 51 struct pci_address child_addr; 52 unsigned int parent_addr; 53 unsigned long size; 54 }; 55 56 struct pci_range64 { 57 struct pci_address child_addr; 58 unsigned long parent_addr; 59 unsigned long size; 60 }; 61 62 union pci_range { 63 struct { 64 struct pci_address addr; 65 u32 phys; 66 u32 size_hi; 67 } pci32; 68 struct { 69 struct pci_address addr; 70 u32 phys_hi; 71 u32 phys_lo; 72 u32 size_hi; 73 u32 size_lo; 74 } pci64; 75 }; 76 77 struct _of_tce_table { 78 phandle node; 79 unsigned long base; 80 unsigned long size; 81 }; 82 83 struct reg_property { 84 unsigned long address; 85 unsigned long size; 86 }; 87 88 struct reg_property32 { 89 unsigned int address; 90 unsigned int size; 91 }; 92 93 struct reg_property64 { 94 unsigned long address; 95 unsigned long size; 96 }; 97 98 struct translation_property { 99 unsigned long virt; 100 unsigned long size; 101 unsigned long phys; 102 unsigned int flags; 103 }; 104 105 struct property { 106 char *name; 107 int length; 108 unsigned char *value; 109 struct property *next; 110 }; 111 112 /* NOTE: the device_node contains PCI specific info for pci devices. 113 * This perhaps could be hung off the device_node with another struct, 114 * but for now it is directly in the node. The phb ptr is a good 115 * indication of a real PCI node. Other nodes leave these fields zeroed. 116 */ 117 struct pci_controller; 118 struct TceTable; 119 struct device_node { 120 char *name; 121 char *type; 122 phandle node; 123 phandle linux_phandle; 124 int n_addrs; 125 struct address_range *addrs; 126 int n_intrs; 127 struct interrupt_info *intrs; 128 char *full_name; 129 130 /* PCI stuff probably doesn't belong here */ 131 int busno; /* for pci devices */ 132 int devfn; /* for pci devices */ 133 #define DN_STATUS_BIST_FAILED (1<<0) 134 int status; /* Current device status (non-zero is bad) */ 135 int eeh_mode; /* See eeh.h for possible EEH_MODEs */ 136 int eeh_config_addr; 137 struct pci_controller *phb; /* for pci devices */ 138 struct TceTable *tce_table; /* for phb's or bridges */ 139 140 struct property *properties; 141 struct device_node *parent; 142 struct device_node *child; 143 struct device_node *sibling; 144 struct device_node *next; /* next device of same type */ 145 struct device_node *allnext; /* next in list of all nodes */ 146 }; 147 148 typedef u32 prom_arg_t; 149 150 struct prom_args { 151 u32 service; 152 u32 nargs; 153 u32 nret; 154 prom_arg_t args[10]; 155 prom_arg_t *rets; /* Pointer to return values in args[16]. */ 156 }; 157 158 typedef struct { 159 u32 printf; /* void (*printf)(char *, ...); */ 160 u32 memdump; /* void (*memdump)(unsigned char *, unsigned long); */ 161 u32 dummy; /* void (*dummy)(void); */ 162 } yaboot_debug_t; 163 164 struct prom_t { 165 unsigned long entry; 166 ihandle chosen; 167 int cpu; 168 ihandle stdout; 169 ihandle disp_node; 170 struct prom_args args; 171 unsigned long version; 172 unsigned long encode_phys_size; 173 struct bi_record *bi_recs; 174 #ifdef DEBUG_YABOOT 175 yaboot_debug_t *yaboot; 176 #endif 177 }; 178 179 extern struct prom_t prom; 180 extern char *of_stdout_device; 181 182 /* Prototypes */ 183 extern unsigned long prom_init(unsigned long, unsigned long, unsigned long, 184 unsigned long, unsigned long, yaboot_debug_t *); 185 extern void prom_print(const char *msg); 186 extern void relocate_nodes(void); 187 extern void finish_device_tree(void); 188 extern struct device_node *find_devices(const char *name); 189 extern struct device_node *find_type_devices(const char *type); 190 extern struct device_node *find_path_device(const char *path); 191 extern struct device_node *find_compatible_devices(const char *type, 192 const char *compat); 193 extern struct device_node *find_pci_device_OFnode(unsigned char bus, 194 unsigned char dev_fn); 195 extern struct device_node *find_all_nodes(void); 196 extern int device_is_compatible(struct device_node *device, const char *); 197 extern int machine_is_compatible(const char *compat); 198 extern unsigned char *get_property(struct device_node *node, const char *name, 199 int *lenp); 200 extern void print_properties(struct device_node *node); 201 extern int prom_n_addr_cells(struct device_node* np); 202 extern int prom_n_size_cells(struct device_node* np); 203 extern void prom_get_irq_senses(unsigned char *senses, int off, int max); 204 extern void prom_add_property(struct device_node* np, struct property* prop); 205 206 #endif /* _PPC64_PROM_H */ 207