2 * misc.c: Miscellaneous prom functions that don't belong
5 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
8 #include <linux/types.h>
9 #include <linux/kernel.h>
10 #include <linux/sched.h>
11 #include <asm/sun3-head.h>
12 #include <asm/idprom.h>
13 #include <asm/openprom.h>
14 #include <asm/oplib.h>
17 /* Reset and reboot the machine with the command 'bcommand'. */
19 prom_reboot(char *bcommand)
22 local_irq_save(flags);
23 (*(romvec->pv_reboot))(bcommand);
24 local_irq_restore(flags);
27 /* Drop into the prom, with the chance to continue with the 'go'
35 /* Drop into the prom, but completely terminate the program.
36 * No chance of continuing.
43 local_irq_save(flags);
44 (*(romvec->pv_halt))();
45 local_irq_restore(flags);
46 goto again; /* PROM is out to get me -DaveM */
49 typedef void (*sfunc_t)(void);
51 /* Get the idprom and stuff it into buffer 'idbuf'. Returns the
52 * format type. 'num_bytes' is the number of bytes that your idbuf
53 * has space for. Returns 0xff on error.
56 prom_get_idprom(char *idbuf, int num_bytes)
61 for(i=0;i<num_bytes; i++)
63 /* There is a problem with the GET_CONTROL_BYTE
64 macro; defining the extra variable
68 GET_CONTROL_BYTE(SUN3_IDPROM_BASE + i, c);
75 /* Get the major prom version number. */
79 return romvec->pv_romvers;
82 /* Get the prom plugin-revision. */
89 /* Get the prom firmware print revision. */