aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sparc/include/asm/openprom_32.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc/include/asm/openprom_32.h')
-rw-r--r--arch/sparc/include/asm/openprom_32.h255
1 files changed, 255 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/openprom_32.h b/arch/sparc/include/asm/openprom_32.h
new file mode 100644
index 000000000000..8b1649f29ed9
--- /dev/null
+++ b/arch/sparc/include/asm/openprom_32.h
@@ -0,0 +1,255 @@
1#ifndef __SPARC_OPENPROM_H
2#define __SPARC_OPENPROM_H
3
4/* openprom.h: Prom structures and defines for access to the OPENBOOT
5 * prom routines and data areas.
6 *
7 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
8 */
9
10/* Empirical constants... */
11#define LINUX_OPPROM_MAGIC 0x10010407
12
13#ifndef __ASSEMBLY__
14/* V0 prom device operations. */
15struct linux_dev_v0_funcs {
16 int (*v0_devopen)(char *device_str);
17 int (*v0_devclose)(int dev_desc);
18 int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
19 int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
20 int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf);
21 int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf);
22 int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
23 int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
24 int (*v0_seekdev)(int dev_desc, long logical_offst, int from);
25};
26
27/* V2 and later prom device operations. */
28struct linux_dev_v2_funcs {
29 int (*v2_inst2pkg)(int d); /* Convert ihandle to phandle */
30 char * (*v2_dumb_mem_alloc)(char *va, unsigned sz);
31 void (*v2_dumb_mem_free)(char *va, unsigned sz);
32
33 /* To map devices into virtual I/O space. */
34 char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz);
35 void (*v2_dumb_munmap)(char *virta, unsigned size);
36
37 int (*v2_dev_open)(char *devpath);
38 void (*v2_dev_close)(int d);
39 int (*v2_dev_read)(int d, char *buf, int nbytes);
40 int (*v2_dev_write)(int d, char *buf, int nbytes);
41 int (*v2_dev_seek)(int d, int hi, int lo);
42
43 /* Never issued (multistage load support) */
44 void (*v2_wheee2)(void);
45 void (*v2_wheee3)(void);
46};
47
48struct linux_mlist_v0 {
49 struct linux_mlist_v0 *theres_more;
50 char *start_adr;
51 unsigned num_bytes;
52};
53
54struct linux_mem_v0 {
55 struct linux_mlist_v0 **v0_totphys;
56 struct linux_mlist_v0 **v0_prommap;
57 struct linux_mlist_v0 **v0_available; /* What we can use */
58};
59
60/* Arguments sent to the kernel from the boot prompt. */
61struct linux_arguments_v0 {
62 char *argv[8];
63 char args[100];
64 char boot_dev[2];
65 int boot_dev_ctrl;
66 int boot_dev_unit;
67 int dev_partition;
68 char *kernel_file_name;
69 void *aieee1; /* XXX */
70};
71
72/* V2 and up boot things. */
73struct linux_bootargs_v2 {
74 char **bootpath;
75 char **bootargs;
76 int *fd_stdin;
77 int *fd_stdout;
78};
79
80/* The top level PROM vector. */
81struct linux_romvec {
82 /* Version numbers. */
83 unsigned int pv_magic_cookie;
84 unsigned int pv_romvers;
85 unsigned int pv_plugin_revision;
86 unsigned int pv_printrev;
87
88 /* Version 0 memory descriptors. */
89 struct linux_mem_v0 pv_v0mem;
90
91 /* Node operations. */
92 struct linux_nodeops *pv_nodeops;
93
94 char **pv_bootstr;
95 struct linux_dev_v0_funcs pv_v0devops;
96
97 char *pv_stdin;
98 char *pv_stdout;
99#define PROMDEV_KBD 0 /* input from keyboard */
100#define PROMDEV_SCREEN 0 /* output to screen */
101#define PROMDEV_TTYA 1 /* in/out to ttya */
102#define PROMDEV_TTYB 2 /* in/out to ttyb */
103
104 /* Blocking getchar/putchar. NOT REENTRANT! (grr) */
105 int (*pv_getchar)(void);
106 void (*pv_putchar)(int ch);
107
108 /* Non-blocking variants. */
109 int (*pv_nbgetchar)(void);
110 int (*pv_nbputchar)(int ch);
111
112 void (*pv_putstr)(char *str, int len);
113
114 /* Miscellany. */
115 void (*pv_reboot)(char *bootstr);
116 void (*pv_printf)(__const__ char *fmt, ...);
117 void (*pv_abort)(void);
118 __volatile__ int *pv_ticks;
119 void (*pv_halt)(void);
120 void (**pv_synchook)(void);
121
122 /* Evaluate a forth string, not different proto for V0 and V2->up. */
123 union {
124 void (*v0_eval)(int len, char *str);
125 void (*v2_eval)(char *str);
126 } pv_fortheval;
127
128 struct linux_arguments_v0 **pv_v0bootargs;
129
130 /* Get ether address. */
131 unsigned int (*pv_enaddr)(int d, char *enaddr);
132
133 struct linux_bootargs_v2 pv_v2bootargs;
134 struct linux_dev_v2_funcs pv_v2devops;
135
136 int filler[15];
137
138 /* This one is sun4c/sun4 only. */
139 void (*pv_setctxt)(int ctxt, char *va, int pmeg);
140
141 /* Prom version 3 Multiprocessor routines. This stuff is crazy.
142 * No joke. Calling these when there is only one cpu probably
143 * crashes the machine, have to test this. :-)
144 */
145
146 /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context
147 * 'thiscontext' executing at address 'prog_counter'
148 */
149 int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr,
150 int thiscontext, char *prog_counter);
151
152 /* v3_cpustop() will cause cpu 'whichcpu' to stop executing
153 * until a resume cpu call is made.
154 */
155 int (*v3_cpustop)(unsigned int whichcpu);
156
157 /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or
158 * resume cpu call is made.
159 */
160 int (*v3_cpuidle)(unsigned int whichcpu);
161
162 /* v3_cpuresume() will resume processor 'whichcpu' executing
163 * starting with whatever 'pc' and 'npc' were left at the
164 * last 'idle' or 'stop' call.
165 */
166 int (*v3_cpuresume)(unsigned int whichcpu);
167};
168
169/* Routines for traversing the prom device tree. */
170struct linux_nodeops {
171 int (*no_nextnode)(int node);
172 int (*no_child)(int node);
173 int (*no_proplen)(int node, char *name);
174 int (*no_getprop)(int node, char *name, char *val);
175 int (*no_setprop)(int node, char *name, char *val, int len);
176 char * (*no_nextprop)(int node, char *name);
177};
178
179/* More fun PROM structures for device probing. */
180#define PROMREG_MAX 16
181#define PROMVADDR_MAX 16
182#define PROMINTR_MAX 15
183
184struct linux_prom_registers {
185 unsigned int which_io; /* is this in OBIO space? */
186 unsigned int phys_addr; /* The physical address of this register */
187 unsigned int reg_size; /* How many bytes does this register take up? */
188};
189
190struct linux_prom_irqs {
191 int pri; /* IRQ priority */
192 int vector; /* This is foobar, what does it do? */
193};
194
195/* Element of the "ranges" vector */
196struct linux_prom_ranges {
197 unsigned int ot_child_space;
198 unsigned int ot_child_base; /* Bus feels this */
199 unsigned int ot_parent_space;
200 unsigned int ot_parent_base; /* CPU looks from here */
201 unsigned int or_size;
202};
203
204/* Ranges and reg properties are a bit different for PCI. */
205struct linux_prom_pci_registers {
206 /*
207 * We don't know what information this field contain.
208 * We guess, PCI device function is in bits 15:8
209 * So, ...
210 */
211 unsigned int which_io; /* Let it be which_io */
212
213 unsigned int phys_hi;
214 unsigned int phys_lo;
215
216 unsigned int size_hi;
217 unsigned int size_lo;
218};
219
220struct linux_prom_pci_ranges {
221 unsigned int child_phys_hi; /* Only certain bits are encoded here. */
222 unsigned int child_phys_mid;
223 unsigned int child_phys_lo;
224
225 unsigned int parent_phys_hi;
226 unsigned int parent_phys_lo;
227
228 unsigned int size_hi;
229 unsigned int size_lo;
230};
231
232struct linux_prom_pci_assigned_addresses {
233 unsigned int which_io;
234
235 unsigned int phys_hi;
236 unsigned int phys_lo;
237
238 unsigned int size_hi;
239 unsigned int size_lo;
240};
241
242struct linux_prom_ebus_ranges {
243 unsigned int child_phys_hi;
244 unsigned int child_phys_lo;
245
246 unsigned int parent_phys_hi;
247 unsigned int parent_phys_mid;
248 unsigned int parent_phys_lo;
249
250 unsigned int size;
251};
252
253#endif /* !(__ASSEMBLY__) */
254
255#endif /* !(__SPARC_OPENPROM_H) */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-20 15:28:26 -0500