/* * init.c: Initialize internal variables used by the PROM * library functions. * * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/string.h> #include <linux/ctype.h> #include <asm/openprom.h> #include <asm/oplib.h> /* OBP version string. */ char prom_version[80]; /* The root node of the prom device tree. */ int prom_stdin, prom_stdout; int prom_chosen_node; /* You must call prom_init() before you attempt to use any of the * routines in the prom library. It returns 0 on success, 1 on * failure. It gets passed the pointer to the PROM vector. */ extern void prom_cif_init(void *, void *); void __init prom_init(void *cif_handler, void *cif_stack) { int node; prom_cif_init(cif_handler, cif_stack); prom_chosen_node = prom_finddevice(prom_chosen_path); if (!prom_chosen_node || prom_chosen_node == -1) prom_halt(); prom_stdin = prom_getint(prom_chosen_node, "stdin"); prom_stdout = prom_getint(prom_chosen_node, "stdout"); node = prom_finddevice("/openprom"); if (!node || node == -1) prom_halt(); prom_getstring(node, "version", prom_version, sizeof(prom_version)); prom_printf("\n"); } void __init prom_init_report(void) { printk("PROMLIB: Sun IEEE Boot Prom '%s'\n", prom_version); printk("PROMLIB: Root node compatible: %s\n", prom_root_compatible); }