1 /* $Id: openprom.h,v 1.7 1998/03/15 10:14:47 ecd Exp $ */
2 #ifndef __SPARC64_OPENPROM_H
3 #define __SPARC64_OPENPROM_H
5 /* openprom.h: Prom structures and defines for access to the OPENBOOT
6 * prom routines and data areas.
8 * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
11 /* Empirical constants... */
12 #define KADB_DEBUGGER_BEGVM 0xffc00000 /* Where kern debugger is in virt-mem */
13 #define LINUX_OPPROM_BEGVM 0xffd00000
14 #define LINUX_OPPROM_ENDVM 0xfff00000
15 #define LINUX_OPPROM_MAGIC 0x10010407
18 /* V0 prom device operations. */
19 struct linux_dev_v0_funcs
{
20 int (*v0_devopen
)(char *device_str
);
21 int (*v0_devclose
)(int dev_desc
);
22 int (*v0_rdblkdev
)(int dev_desc
, int num_blks
, int blk_st
, char *buf
);
23 int (*v0_wrblkdev
)(int dev_desc
, int num_blks
, int blk_st
, char *buf
);
24 int (*v0_wrnetdev
)(int dev_desc
, int num_bytes
, char *buf
);
25 int (*v0_rdnetdev
)(int dev_desc
, int num_bytes
, char *buf
);
26 int (*v0_rdchardev
)(int dev_desc
, int num_bytes
, int dummy
, char *buf
);
27 int (*v0_wrchardev
)(int dev_desc
, int num_bytes
, int dummy
, char *buf
);
28 int (*v0_seekdev
)(int dev_desc
, long logical_offst
, int from
);
31 /* V2 and later prom device operations. */
32 struct linux_dev_v2_funcs
{
33 int (*v2_inst2pkg
)(int d
); /* Convert ihandle to phandle */
34 char * (*v2_dumb_mem_alloc
)(char *va
, unsigned sz
);
35 void (*v2_dumb_mem_free
)(char *va
, unsigned sz
);
37 /* To map devices into virtual I/O space. */
38 char * (*v2_dumb_mmap
)(char *virta
, int which_io
, unsigned paddr
, unsigned sz
);
39 void (*v2_dumb_munmap
)(char *virta
, unsigned size
);
41 int (*v2_dev_open
)(char *devpath
);
42 void (*v2_dev_close
)(int d
);
43 int (*v2_dev_read
)(int d
, char *buf
, int nbytes
);
44 int (*v2_dev_write
)(int d
, char *buf
, int nbytes
);
45 int (*v2_dev_seek
)(int d
, int hi
, int lo
);
47 /* Never issued (multistage load support) */
48 void (*v2_wheee2
)(void);
49 void (*v2_wheee3
)(void);
52 struct linux_mlist_v0
{
53 struct linux_mlist_v0
*theres_more
;
59 struct linux_mlist_v0
**v0_totphys
;
60 struct linux_mlist_v0
**v0_prommap
;
61 struct linux_mlist_v0
**v0_available
; /* What we can use */
64 /* Arguments sent to the kernel from the boot prompt. */
65 struct linux_arguments_v0
{
72 char *kernel_file_name
;
73 void *aieee1
; /* XXX */
76 /* V2 and up boot things. */
77 struct linux_bootargs_v2
{
84 /* The top level PROM vector. */
86 /* Version numbers. */
87 unsigned int pv_magic_cookie
;
88 unsigned int pv_romvers
;
89 unsigned int pv_plugin_revision
;
90 unsigned int pv_printrev
;
92 /* Version 0 memory descriptors. */
93 struct linux_mem_v0 pv_v0mem
;
95 /* Node operations. */
96 struct linux_nodeops
*pv_nodeops
;
99 struct linux_dev_v0_funcs pv_v0devops
;
103 #define PROMDEV_KBD 0 /* input from keyboard */
104 #define PROMDEV_SCREEN 0 /* output to screen */
105 #define PROMDEV_TTYA 1 /* in/out to ttya */
106 #define PROMDEV_TTYB 2 /* in/out to ttyb */
108 /* Blocking getchar/putchar. NOT REENTRANT! (grr) */
109 int (*pv_getchar
)(void);
110 void (*pv_putchar
)(int ch
);
112 /* Non-blocking variants. */
113 int (*pv_nbgetchar
)(void);
114 int (*pv_nbputchar
)(int ch
);
116 void (*pv_putstr
)(char *str
, int len
);
119 void (*pv_reboot
)(char *bootstr
);
120 void (*pv_printf
)(__const__
char *fmt
, ...);
121 void (*pv_abort
)(void);
122 __volatile__
int *pv_ticks
;
123 void (*pv_halt
)(void);
124 void (**pv_synchook
)(void);
126 /* Evaluate a forth string, not different proto for V0 and V2->up. */
128 void (*v0_eval
)(int len
, char *str
);
129 void (*v2_eval
)(char *str
);
132 struct linux_arguments_v0
**pv_v0bootargs
;
134 /* Get ether address. */
135 unsigned int (*pv_enaddr
)(int d
, char *enaddr
);
137 struct linux_bootargs_v2 pv_v2bootargs
;
138 struct linux_dev_v2_funcs pv_v2devops
;
142 /* This one is sun4c/sun4 only. */
143 void (*pv_setctxt
)(int ctxt
, char *va
, int pmeg
);
145 /* Prom version 3 Multiprocessor routines. This stuff is crazy.
146 * No joke. Calling these when there is only one cpu probably
147 * crashes the machine, have to test this. :-)
150 /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context
151 * 'thiscontext' executing at address 'prog_counter'
153 int (*v3_cpustart
)(unsigned int whichcpu
, int ctxtbl_ptr
,
154 int thiscontext
, char *prog_counter
);
156 /* v3_cpustop() will cause cpu 'whichcpu' to stop executing
157 * until a resume cpu call is made.
159 int (*v3_cpustop
)(unsigned int whichcpu
);
161 /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or
162 * resume cpu call is made.
164 int (*v3_cpuidle
)(unsigned int whichcpu
);
166 /* v3_cpuresume() will resume processor 'whichcpu' executing
167 * starting with whatever 'pc' and 'npc' were left at the
168 * last 'idle' or 'stop' call.
170 int (*v3_cpuresume
)(unsigned int whichcpu
);
173 /* Routines for traversing the prom device tree. */
174 struct linux_nodeops
{
175 int (*no_nextnode
)(int node
);
176 int (*no_child
)(int node
);
177 int (*no_proplen
)(int node
, char *name
);
178 int (*no_getprop
)(int node
, char *name
, char *val
);
179 int (*no_setprop
)(int node
, char *name
, char *val
, int len
);
180 char * (*no_nextprop
)(int node
, char *name
);
183 /* More fun PROM structures for device probing. */
184 #define PROMREG_MAX 16
185 #define PROMVADDR_MAX 16
186 #define PROMINTR_MAX 15
188 struct linux_prom_registers
{
189 unsigned which_io
; /* hi part of physical address */
190 unsigned phys_addr
; /* The physical address of this register */
191 int reg_size
; /* How many bytes does this register take up? */
194 struct linux_prom64_registers
{
199 struct linux_prom_irqs
{
200 int pri
; /* IRQ priority */
201 int vector
; /* This is foobar, what does it do? */
204 /* Element of the "ranges" vector */
205 struct linux_prom_ranges
{
206 unsigned int ot_child_space
;
207 unsigned int ot_child_base
; /* Bus feels this */
208 unsigned int ot_parent_space
;
209 unsigned int ot_parent_base
; /* CPU looks from here */
210 unsigned int or_size
;
213 /* Ranges and reg properties are a bit different for PCI. */
214 struct linux_prom_pci_registers
{
215 unsigned int phys_hi
;
216 unsigned int phys_mid
;
217 unsigned int phys_lo
;
219 unsigned int size_hi
;
220 unsigned int size_lo
;
223 struct linux_prom_pci_ranges
{
224 unsigned int child_phys_hi
; /* Only certain bits are encoded here. */
225 unsigned int child_phys_mid
;
226 unsigned int child_phys_lo
;
228 unsigned int parent_phys_hi
;
229 unsigned int parent_phys_lo
;
231 unsigned int size_hi
;
232 unsigned int size_lo
;
235 struct linux_prom_pci_intmap
{
236 unsigned int phys_hi
;
237 unsigned int phys_mid
;
238 unsigned int phys_lo
;
240 unsigned int interrupt
;
243 unsigned int cinterrupt
;
246 struct linux_prom_pci_intmask
{
247 unsigned int phys_hi
;
248 unsigned int phys_mid
;
249 unsigned int phys_lo
;
250 unsigned int interrupt
;
253 struct linux_prom_ebus_ranges
{
254 unsigned int child_phys_hi
;
255 unsigned int child_phys_lo
;
257 unsigned int parent_phys_hi
;
258 unsigned int parent_phys_mid
;
259 unsigned int parent_phys_lo
;
264 struct linux_prom_ebus_intmap
{
265 unsigned int phys_hi
;
266 unsigned int phys_lo
;
268 unsigned int interrupt
;
271 unsigned int cinterrupt
;
274 struct linux_prom_ebus_intmask
{
275 unsigned int phys_hi
;
276 unsigned int phys_lo
;
277 unsigned int interrupt
;
279 #endif /* !(__ASSEMBLY__) */
281 #endif /* !(__SPARC64_OPENPROM_H) */