Commit | Line | Data |
---|---|---|
b00dc837 | 1 | /* |
1da177e4 LT |
2 | * init.c: Initialize internal variables used by the PROM |
3 | * library functions. | |
4 | * | |
5 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | |
6 | * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | |
7 | */ | |
8 | ||
9 | #include <linux/kernel.h> | |
10 | #include <linux/init.h> | |
11 | #include <linux/string.h> | |
12 | #include <linux/ctype.h> | |
13 | ||
14 | #include <asm/openprom.h> | |
15 | #include <asm/oplib.h> | |
16 | ||
90a6646b DM |
17 | /* OBP version string. */ |
18 | char prom_version[80]; | |
1da177e4 LT |
19 | |
20 | /* The root node of the prom device tree. */ | |
bce5feea | 21 | int prom_stdout; |
8d125562 | 22 | phandle prom_chosen_node; |
1da177e4 LT |
23 | |
24 | /* You must call prom_init() before you attempt to use any of the | |
e393d1bd GU |
25 | * routines in the prom library. |
26 | * It gets passed the pointer to the PROM vector. | |
1da177e4 LT |
27 | */ |
28 | ||
1da177e4 LT |
29 | extern void prom_cif_init(void *, void *); |
30 | ||
31 | void __init prom_init(void *cif_handler, void *cif_stack) | |
32 | { | |
8d125562 | 33 | phandle node; |
1da177e4 LT |
34 | |
35 | prom_cif_init(cif_handler, cif_stack); | |
36 | ||
bff06d55 | 37 | prom_chosen_node = prom_finddevice(prom_chosen_path); |
4a3a2552 | 38 | if (!prom_chosen_node || (s32)prom_chosen_node == -1) |
1da177e4 LT |
39 | prom_halt(); |
40 | ||
d82ace7d | 41 | prom_stdout = prom_getint(prom_chosen_node, "stdout"); |
1da177e4 LT |
42 | |
43 | node = prom_finddevice("/openprom"); | |
4a3a2552 | 44 | if (!node || (s32)node == -1) |
1da177e4 LT |
45 | prom_halt(); |
46 | ||
90a6646b | 47 | prom_getstring(node, "version", prom_version, sizeof(prom_version)); |
1da177e4 | 48 | |
d82ace7d | 49 | prom_printf("\n"); |
ce22e1d3 | 50 | } |
1da177e4 | 51 | |
ce22e1d3 DM |
52 | void __init prom_init_report(void) |
53 | { | |
90a6646b | 54 | printk("PROMLIB: Sun IEEE Boot Prom '%s'\n", prom_version); |
d82ace7d | 55 | printk("PROMLIB: Root node compatible: %s\n", prom_root_compatible); |
1da177e4 | 56 | } |