94 lines
2.3 KiB
ArmAsm
94 lines
2.3 KiB
ArmAsm
/*
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* Copyright (c) 2016 Intel Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define _ASMLANGUAGE
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#include <toolchain.h>
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#include <arch/arc/v2/aux_regs.h>
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#include <swap_macros.h>
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#ifdef CONFIG_SYS_POWER_DEEP_SLEEP
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GDATA(_pm_arc_context)
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GTEXT(_sys_soc_resume_from_deep_sleep)
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GTEXT(_power_restore_cpu_context)
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GTEXT(_power_soc_sleep)
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GTEXT(_power_soc_deep_sleep)
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#define GPS0_REGISTER 0xb0800100
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#define RESTORE_SS_BIT 2
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SECTION_FUNC(TEXT, _sys_soc_resume_from_deep_sleep)
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/* Check is this wakeup after sleep event. */
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ld r0,[GPS0_REGISTER]
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bbit1 r0,RESTORE_SS_BIT,restore
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j_s [blink] /* Jump to context of BLINK register. */
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restore:
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bclr_s r0,r0,RESTORE_SS_BIT
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st r0,[GPS0_REGISTER]
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/* Enable I-Cache */
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sr 1, [_ARC_V2_IC_CTRL]
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j @_sys_soc_restore_cpu_context
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SECTION_FUNC(TEXT, save_cpu_context)
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mov_s r1, _kernel
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ld_s r2, [r1, _kernel_offset_to_current]
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_save_callee_saved_regs
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j_s [blink] /* Jump to context of BLINK register. */
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SECTION_FUNC(TEXT, _power_soc_sleep)
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/*
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* Save the return address.
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* The restore function will pop this and jump
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* back to the caller.
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*/
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push_s blink
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/* Do not link to preserve blink */
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jl @save_cpu_context
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j @power_soc_sleep
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/* Does not return */
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SECTION_FUNC(TEXT, _power_soc_deep_sleep)
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/*
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* Save the return address.
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* The restore function will pop this and jump
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* back to the caller.
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*/
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push_s blink
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/* Do not link to preserve blink */
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jl @save_cpu_context
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j @power_soc_deep_sleep
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/* Does not return */
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SECTION_FUNC(TEXT, _sys_soc_restore_cpu_context)
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mov_s r1, _kernel
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ld_s r2, [r1, _kernel_offset_to_current]
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_load_callee_saved_regs
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/* Restore return address */
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pop_s blink
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j_s [blink] /* Jump to context of BLINK register. */
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#endif
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