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light sleep: add cpu power down support for esp32c3

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This commit is contained in:
Li Shuai
2020-12-24 21:02:32 +08:00
parent 63c4e5481f
commit f168ac3b39
12 changed files with 224 additions and 2 deletions
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16
components/hal/esp32c3/include/hal/rtc_cntl_ll.h
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@@ -17,6 +17,7 @@
#include "soc/soc.h"
#include "soc/rtc.h"
#include "soc/rtc_cntl_reg.h"
#include "soc/apb_ctrl_reg.h"
#ifdef __cplusplus
extern "C" {
@@ -47,6 +48,21 @@ static inline void rtc_cntl_ll_ext1_clear_wakeup_pins(void)
REG_SET_BIT(RTC_CNTL_GPIO_WAKEUP_REG, RTC_CNTL_GPIO_WAKEUP_STATUS_CLR);
}
static inline void rtc_cntl_ll_enable_cpu_retention(uint32_t addr)
{
/* write memory address to register */
REG_SET_FIELD(APB_CTRL_RETENTION_CTRL_REG, APB_CTRL_RETENTION_LINK_ADDR, (uint32_t)addr);
/* Enable clock */
REG_SET_BIT(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_DIG_CLK8M_EN);
/* Enable retention when cpu sleep enable */
REG_SET_BIT(RTC_CNTL_RETENTION_CTRL_REG, RTC_CNTL_RETENTION_EN);
}
static inline void rtc_cntl_ll_disable_cpu_retention(void)
{
REG_CLR_BIT(RTC_CNTL_RETENTION_CTRL_REG, RTC_CNTL_RETENTION_EN);
}
#ifdef __cplusplus
}
#endif