47 lines
1.0 KiB
C
47 lines
1.0 KiB
C
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/*
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* Copyright (C) 2018 Alibaba Group Holding Limited
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*/
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/*
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DESCRIPTION
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This file provides two fundtions systick_suspend()/systick_resume()
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which is used by cpu tickless module to suspend/resume system tick
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interrupt.
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Differrent board may has different way to suspend/resume system tick
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interrupt, please reference your board/soc user manual to find the
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detail for how to implement these two functions.
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*/
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#include "k_api.h"
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#include "cpu_pwr_config.h"
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#include "port.h"
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#include "csi_core.h"
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#if (RHINO_CONFIG_CPU_PWR_MGMT > 0)
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extern uint32_t csi_coret_suspend();
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extern uint32_t csi_coret_resume();
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void systick_suspend(void)
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{
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CORET->CTRL = CORET_CTRL_CLKSOURCE_Msk | CORET_CTRL_TICKINT_Msk;
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}
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void systick_resume(void)
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{
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CORET->CTRL = CORET_CTRL_CLKSOURCE_Msk |
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CORET_CTRL_TICKINT_Msk |
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CORET_CTRL_ENABLE_Msk; /* Enable CORET IRQ and CORET Timer */
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}
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#else
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void systick_suspend(void)
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{
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}
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void systick_resume(void)
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{
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}
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#endif /* RHINO_CONFIG_CPU_PWR_MGMT */
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