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- /*
- * Copyright (c) 2022 Actions Semiconductor Co., Ltd
- *
- * SPDX-License-Identifier: Apache-2.0
- */
- /**
- * @file soc_sleep.S sleep for Actions SoC
- */
- #include <toolchain.h>
- #include <linker/sections.h>
- _ASM_FILE_PROLOGUE
- GTEXT(__cpu_suspend)
- GTEXT(__cpu_resume)
- GDATA(soc_sleep_backup)
- SECTION_FUNC(sleepfunc, __cpu_suspend)
- ldr ip, =soc_sleep_backup
- stmia ip!, {r0-r11}
- mov r0, sp
- mov r1, lr
- mrs r2, MSP
- mrs r3, PSP
- stmia ip!, {r0-r3}
- dsb
- wfi
- isb
- bx lr
- SECTION_FUNC(sleepfunc, __cpu_resume)
- mrs r0, CONTROL
- movs r1, #2
- orrs r0, r1
- msr CONTROL, r0
- isb
- ldr ip, =soc_sleep_backup
- add ip, #48
- ldmia ip!, {r0-r3}
- mov sp, r0
- mov lr, r1
- msr MSP, r2
- msr PSP, r3
- ldr ip, =soc_sleep_backup
- ldmia ip!, {r0-r11}
- isb
- bx lr
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