projects / deliverable / linux.git / blame
| 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. */ | |
| 1da177e4 LT |
21 | int prom_stdin, prom_stdout; |
| 22 | int prom_chosen_node; | |
| 23 | ||
| 24 | /* You must call prom_init() before you attempt to use any of the | |
| 25 | * routines in the prom library. It returns 0 on success, 1 on | |
| 26 | * failure. It gets passed the pointer to the PROM vector. | |
| 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 | { | |
| 1da177e4 | 33 | int node; |
| 1da177e4 LT |
34 | |
| 35 | prom_cif_init(cif_handler, cif_stack); | |
| 36 | ||
| bff06d55 | 37 | prom_chosen_node = prom_finddevice(prom_chosen_path); |
| 1da177e4 LT |
38 | if (!prom_chosen_node || prom_chosen_node == -1) |
| 39 | prom_halt(); | |
| 40 | ||
| d82ace7d DM |
41 | prom_stdin = prom_getint(prom_chosen_node, "stdin"); |
| 42 | prom_stdout = prom_getint(prom_chosen_node, "stdout"); | |
| 1da177e4 LT |
43 | |
| 44 | node = prom_finddevice("/openprom"); | |
| 45 | if (!node || node == -1) | |
| 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 | } |