forked from luck/tmp_suning_uos_patched
1199919b69
Powersave support on PA6T. Right now it only uses 'doze' mode, and will default to no savings (spin). Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
45 lines
1.2 KiB
ArmAsm
45 lines
1.2 KiB
ArmAsm
/*
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* Copyright (C) 2006-2007 PA Semi, Inc
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*
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* Maintained by: Olof Johansson <olof@lixom.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <asm/processor.h>
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#include <asm/page.h>
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#include <asm/cputable.h>
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#include <asm/ppc_asm.h>
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#include <asm/asm-offsets.h>
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#include <asm/cache.h>
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/* Right now, restore and setup are the same thing */
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_GLOBAL(__restore_cpu_pa6t)
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_GLOBAL(__setup_cpu_pa6t)
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/* Do nothing if not running in HV mode */
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mfmsr r0
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rldicl. r0,r0,4,63
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beqlr
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mfspr r0,SPRN_HID5
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ori r0,r0,0x30
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mtspr SPRN_HID5,r0
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mfspr r0,SPRN_LPCR
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ori r0,r0,0x7000
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mtspr SPRN_LPCR,r0
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blr
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