mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-19 18:53:52 +08:00
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>
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/* $Id: init.c,v 1.10 1999/09/21 14:35:59 davem Exp $
|
|
* 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);
|
|
}
|