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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mips/fw/arc/init.c
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/*

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 * This file is subject to the terms and conditions of the GNU General Public

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 * License.  See the file "COPYING" in the main directory of this archive

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 * for more details.

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 *

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 * PROM library initialisation code.

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 *

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 * Copyright (C) 1996 David S. Miller ([email protected])

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 */

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#include <linux/init.h>

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#include <linux/kernel.h>

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#include <asm/bootinfo.h>

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#include <asm/sgialib.h>

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#include <asm/smp-ops.h>

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#undef DEBUG_PROM_INIT

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/* Master romvec interface. */

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struct linux_romvec *romvec;

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int prom_argc;

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LONG *_prom_argv, *_prom_envp;

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void __init prom_init(void)

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{

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	PSYSTEM_PARAMETER_BLOCK pb = PROMBLOCK;

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	romvec = ROMVECTOR;

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	prom_argc = fw_arg0;

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	_prom_argv = (LONG *) fw_arg1;

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	_prom_envp = (LONG *) fw_arg2;

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	if (pb->magic != 0x53435241) {

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		printk(KERN_CRIT "Aieee, bad prom vector magic %08lx\n",

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		       (unsigned long) pb->magic);

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		while(1)

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			;

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	}

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	prom_init_cmdline();

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	prom_identify_arch();

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	printk(KERN_INFO "PROMLIB: ARC firmware Version %d Revision %d\n",

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	       pb->ver, pb->rev);

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	prom_meminit();

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#ifdef DEBUG_PROM_INIT

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	pr_info("Press a key to reboot\n");

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	ArcRead(0, &c, 1, &cnt);

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	ArcEnterInteractiveMode();

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#endif

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#ifdef CONFIG_SGI_IP27

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	{

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		extern struct plat_smp_ops ip27_smp_ops;

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		register_smp_ops(&ip27_smp_ops);

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	}

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#endif

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}

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