/*
* This file is subject to the terms and conditions of the GNU General Public
* License . See the file " COPYING " in the main directory of this archive
* for more details .
*
* PROM library initialisation code .
*
* Copyright ( C ) 1996 David S . Miller ( davem @ davemloft . net )
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <asm /bootinfo.h>
#include <asm /sgialib.h>
#include <asm /smp-ops.h>
#undef DEBUG_PROM_INIT
/* Master romvec interface. */
struct linux_romvec *romvec;
#if defined (CONFIG_64BIT) && defined (CONFIG_FW_ARC32)
/* stack for calling 32bit ARC prom */
u64 o32_stk[4096 ];
#endif
void __init prom_init(void )
{
PSYSTEM_PARAMETER_BLOCK pb = PROMBLOCK;
romvec = ROMVECTOR;
if (pb->magic != 0 x53435241) {
printk(KERN_CRIT "Aieee, bad prom vector magic %08lx\n" ,
(unsigned long ) pb->magic);
while (1 )
;
}
prom_init_cmdline(fw_arg0, (LONG *)fw_arg1);
prom_identify_arch();
printk(KERN_INFO "PROMLIB: ARC firmware Version %d Revision %d\n" ,
pb->ver, pb->rev);
prom_meminit();
#ifdef DEBUG_PROM_INIT
pr_info("Press a key to reboot\n" );
ArcRead(0 , &c, 1 , &cnt);
ArcEnterInteractiveMode();
#endif
}
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