From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/sparc/prom/init.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 arch/sparc/prom/init.c (limited to 'arch/sparc/prom/init.c') diff --git a/arch/sparc/prom/init.c b/arch/sparc/prom/init.c new file mode 100644 index 000000000000..b83409c81916 --- /dev/null +++ b/arch/sparc/prom/init.c @@ -0,0 +1,95 @@ +/* $Id: init.c,v 1.14 2000/01/29 01:09:12 anton Exp $ + * init.c: Initialize internal variables used by the PROM + * library functions. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#include +#include +#include + +#include +#include +#include + +struct linux_romvec *romvec; +enum prom_major_version prom_vers; +unsigned int prom_rev, prom_prev; +linux_sun4_romvec *sun4_romvec; + +/* The root node of the prom device tree. */ +int prom_root_node; + +int prom_stdin, prom_stdout; + +/* Pointer to the device tree operations structure. */ +struct linux_nodeops *prom_nodeops; + +/* 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_meminit(void); +extern void prom_ranges_init(void); + +void __init prom_init(struct linux_romvec *rp) +{ +#ifdef CONFIG_SUN4 + extern struct linux_romvec *sun4_prom_init(void); + rp = sun4_prom_init(); +#endif + romvec = rp; + + switch(romvec->pv_romvers) { + case 0: + prom_vers = PROM_V0; + break; + case 2: + prom_vers = PROM_V2; + break; + case 3: + prom_vers = PROM_V3; + break; + case 40: + prom_vers = PROM_SUN4; + break; + default: + prom_printf("PROMLIB: Bad PROM version %d\n", + romvec->pv_romvers); + prom_halt(); + break; + }; + + prom_rev = romvec->pv_plugin_revision; + prom_prev = romvec->pv_printrev; + prom_nodeops = romvec->pv_nodeops; + + prom_root_node = prom_getsibling(0); + if((prom_root_node == 0) || (prom_root_node == -1)) + prom_halt(); + + if((((unsigned long) prom_nodeops) == 0) || + (((unsigned long) prom_nodeops) == -1)) + prom_halt(); + + if(prom_vers == PROM_V2 || prom_vers == PROM_V3) { + prom_stdout = *romvec->pv_v2bootargs.fd_stdout; + prom_stdin = *romvec->pv_v2bootargs.fd_stdin; + } + + prom_meminit(); + + prom_ranges_init(); + +#ifndef CONFIG_SUN4 + /* SUN4 prints this in sun4_prom_init */ + printk("PROMLIB: Sun Boot Prom Version %d Revision %d\n", + romvec->pv_romvers, prom_rev); +#endif + + /* Initialization successful. */ + return; +} -- cgit v1.2.2