ce22e1d394
The early per-cpu handling needs a slight tweak to work when booting on a non-zero cpu. We got away with this for a long time, but can't any longer as now even printk() calls functions (cpu_clock() for example) that thus make early references to per-cpu variables. Signed-off-by: David S. Miller <davem@davemloft.net>
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* $Id: init.c,v 1.10 1999/09/21 14:35:59 davem Exp $
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* init.c: Initialize internal variables used by the PROM
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* library functions.
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*
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* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
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* Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/string.h>
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#include <linux/ctype.h>
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#include <asm/openprom.h>
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#include <asm/oplib.h>
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/* OBP version string. */
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char prom_version[80];
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/* The root node of the prom device tree. */
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int prom_stdin, prom_stdout;
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int prom_chosen_node;
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/* You must call prom_init() before you attempt to use any of the
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* routines in the prom library. It returns 0 on success, 1 on
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* failure. It gets passed the pointer to the PROM vector.
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*/
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extern void prom_cif_init(void *, void *);
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void __init prom_init(void *cif_handler, void *cif_stack)
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{
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int node;
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prom_cif_init(cif_handler, cif_stack);
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prom_chosen_node = prom_finddevice(prom_chosen_path);
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if (!prom_chosen_node || prom_chosen_node == -1)
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prom_halt();
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prom_stdin = prom_getint(prom_chosen_node, "stdin");
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prom_stdout = prom_getint(prom_chosen_node, "stdout");
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node = prom_finddevice("/openprom");
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if (!node || node == -1)
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prom_halt();
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prom_getstring(node, "version", prom_version, sizeof(prom_version));
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prom_printf("\n");
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}
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void __init prom_init_report(void)
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{
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printk("PROMLIB: Sun IEEE Boot Prom '%s'\n", prom_version);
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printk("PROMLIB: Root node compatible: %s\n", prom_root_compatible);
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}
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