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Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
49 lines
902 B
ArmAsm
49 lines
902 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Enter and leave sleep state on chips with 6xx-style HID0
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* power management bits, which don't leave sleep state via reset.
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*
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* Author: Scott Wood <scottwood@freescale.com>
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*
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* Copyright (c) 2006-2007 Freescale Semiconductor, Inc.
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*/
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#include <asm/ppc_asm.h>
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#include <asm/reg.h>
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#include <asm/thread_info.h>
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#include <asm/asm-offsets.h>
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_GLOBAL(mpc6xx_enter_standby)
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mflr r4
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mfspr r5, SPRN_HID0
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rlwinm r5, r5, 0, ~(HID0_DOZE | HID0_NAP)
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oris r5, r5, HID0_SLEEP@h
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mtspr SPRN_HID0, r5
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isync
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lis r5, ret_from_standby@h
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ori r5, r5, ret_from_standby@l
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mtlr r5
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lwz r6, TI_LOCAL_FLAGS(r2)
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ori r6, r6, _TLF_SLEEPING
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stw r6, TI_LOCAL_FLAGS(r2)
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mfmsr r5
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ori r5, r5, MSR_EE
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oris r5, r5, MSR_POW@h
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sync
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mtmsr r5
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isync
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1: b 1b
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ret_from_standby:
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mfspr r5, SPRN_HID0
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rlwinm r5, r5, 0, ~HID0_SLEEP
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mtspr SPRN_HID0, r5
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mtlr r4
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blr
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