cpu_setup_pa6t.s

来自「linux 内核源代码」· S 代码 · 共 45 行

/*
 * Copyright (C) 2006-2007 PA Semi, Inc
 *
 * Maintained by: Olof Johansson <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <asm/processor.h>
#include <asm/page.h>
#include <asm/cputable.h>
#include <asm/ppc_asm.h>
#include <asm/asm-offsets.h>
#include <asm/cache.h>

/* Right now, restore and setup are the same thing */
_GLOBAL(__restore_cpu_pa6t)
_GLOBAL(__setup_cpu_pa6t)
	/* Do nothing if not running in HV mode */
	mfmsr	r0
	rldicl.	r0,r0,4,63
	beqlr

	mfspr	r0,SPRN_HID5
	ori	r0,r0,0x38
	mtspr	SPRN_HID5,r0

	mfspr	r0,SPRN_LPCR
	ori	r0,r0,0x7000
	mtspr	SPRN_LPCR,r0

	blr