]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
b00dc837 | 2 | /* |
1da177e4 LT |
3 | * init.c: Initialize internal variables used by the PROM |
4 | * library functions. | |
5 | * | |
6 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | |
7 | * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | |
8 | */ | |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/init.h> | |
12 | #include <linux/string.h> | |
13 | #include <linux/ctype.h> | |
14 | ||
15 | #include <asm/openprom.h> | |
16 | #include <asm/oplib.h> | |
17 | ||
90a6646b DM |
18 | /* OBP version string. */ |
19 | char prom_version[80]; | |
1da177e4 LT |
20 | |
21 | /* The root node of the prom device tree. */ | |
bce5feea | 22 | int prom_stdout; |
8d125562 | 23 | phandle prom_chosen_node; |
1da177e4 LT |
24 | |
25 | /* You must call prom_init() before you attempt to use any of the | |
e393d1bd GU |
26 | * routines in the prom library. |
27 | * It gets passed the pointer to the PROM vector. | |
1da177e4 LT |
28 | */ |
29 | ||
ef3e035c | 30 | extern void prom_cif_init(void *); |
1da177e4 | 31 | |
ef3e035c | 32 | void __init prom_init(void *cif_handler) |
1da177e4 | 33 | { |
8d125562 | 34 | phandle node; |
1da177e4 | 35 | |
ef3e035c | 36 | prom_cif_init(cif_handler); |
1da177e4 | 37 | |
bff06d55 | 38 | prom_chosen_node = prom_finddevice(prom_chosen_path); |
4a3a2552 | 39 | if (!prom_chosen_node || (s32)prom_chosen_node == -1) |
1da177e4 LT |
40 | prom_halt(); |
41 | ||
d82ace7d | 42 | prom_stdout = prom_getint(prom_chosen_node, "stdout"); |
1da177e4 LT |
43 | |
44 | node = prom_finddevice("/openprom"); | |
4a3a2552 | 45 | if (!node || (s32)node == -1) |
1da177e4 LT |
46 | prom_halt(); |
47 | ||
90a6646b | 48 | prom_getstring(node, "version", prom_version, sizeof(prom_version)); |
1da177e4 | 49 | |
d82ace7d | 50 | prom_printf("\n"); |
ce22e1d3 | 51 | } |
1da177e4 | 52 | |
ce22e1d3 DM |
53 | void __init prom_init_report(void) |
54 | { | |
90a6646b | 55 | printk("PROMLIB: Sun IEEE Boot Prom '%s'\n", prom_version); |
d82ace7d | 56 | printk("PROMLIB: Root node compatible: %s\n", prom_root_compatible); |
1da177e4 | 57 | } |