1 // SPDX-License-Identifier: GPL-2.0 2 /* 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 */ 8 9 #include <linux/kernel.h> 10 #include <linux/init.h> 11 12 #include <asm/openprom.h> 13 #include <asm/oplib.h> 14 15 struct linux_romvec *romvec; 16 enum prom_major_version prom_vers; 17 unsigned int prom_rev, prom_prev; 18 19 /* The root node of the prom device tree. */ 20 int prom_root_node; 21 22 /* Pointer to the device tree operations structure. */ 23 struct linux_nodeops *prom_nodeops; 24 25 /* You must call prom_init() before you attempt to use any of the 26 * routines in the prom library. 27 * It gets passed the pointer to the PROM vector. 28 */ 29 30 void __init prom_init(struct linux_romvec *rp) 31 { 32 romvec = rp; 33 34 /* Initialization successful. */ 35 return; 36 } 37