esp_hw_support: add rtc module support for esp32s3

components/esp_hw_support/port/esp32s3/rtc_clk.c

@@ -281,7 +281,7 @@ void rtc_clk_bbpll_configure(rtc_xtal_freq_t xtal_freq, int pll_freq)
     }
     uint8_t i2c_bbpll_lref  = (dchgp << I2C_BBPLL_OC_DCHGP_LSB) | (div_ref);
     uint8_t i2c_bbpll_div_7_0 = div7_0;
-    uint8_t i2c_bbpll_dcur = (2 << I2C_BBPLL_OC_DLREF_SEL_LSB ) | (1 << I2C_BBPLL_OC_DHREF_SEL_LSB) | dcur;
+    uint8_t i2c_bbpll_dcur = (1 << I2C_BBPLL_OC_DLREF_SEL_LSB ) | (2 << I2C_BBPLL_OC_DHREF_SEL_LSB) | dcur;
     REGI2C_WRITE(I2C_BBPLL, I2C_BBPLL_OC_REF_DIV, i2c_bbpll_lref);
     REGI2C_WRITE(I2C_BBPLL, I2C_BBPLL_OC_DIV_7_0, i2c_bbpll_div_7_0);
     REGI2C_WRITE_MASK(I2C_BBPLL, I2C_BBPLL_OC_DR1, dr1);

components/esp_hw_support/port/esp32s3/rtc_init.c

@@ -18,6 +18,7 @@
 #include "soc/rtc_cntl_reg.h"
 #include "soc/dport_reg.h"
 #include "soc/gpio_reg.h"
+#include "soc/apb_ctrl_reg.h"
 #include "soc/spi_mem_reg.h"
 #include "soc/extmem_reg.h"
 #include "soc/syscon_reg.h"
@@ -49,8 +50,8 @@ void rtc_init(rtc_config_t cfg)
     REG_SET_FIELD(RTC_CNTL_TIMER3_REG, RTC_CNTL_BT_POWERUP_TIMER, rtc_init_cfg.bt_powerup_cycles);
     REG_SET_FIELD(RTC_CNTL_TIMER3_REG, RTC_CNTL_BT_WAIT_TIMER, rtc_init_cfg.bt_wait_cycles);
 
-    REG_SET_FIELD(RTC_CNTL_TIMER4_REG, RTC_CNTL_CPU_TOP_POWERUP_TIMER, rtc_init_cfg.cpu_top_powerup_cycles);
-    REG_SET_FIELD(RTC_CNTL_TIMER4_REG, RTC_CNTL_CPU_TOP_WAIT_TIMER, rtc_init_cfg.cpu_top_wait_cycles);
+    REG_SET_FIELD(RTC_CNTL_TIMER6_REG, RTC_CNTL_CPU_TOP_POWERUP_TIMER, rtc_init_cfg.cpu_top_powerup_cycles);
+    REG_SET_FIELD(RTC_CNTL_TIMER6_REG, RTC_CNTL_CPU_TOP_WAIT_TIMER, rtc_init_cfg.cpu_top_wait_cycles);
 
     // set rtc peri timer
     REG_SET_FIELD(RTC_CNTL_TIMER4_REG, RTC_CNTL_POWERUP_TIMER, rtc_init_cfg.rtc_powerup_cycles);
@@ -69,6 +70,8 @@ void rtc_init(rtc_config_t cfg)
     if (cfg.clkctl_init) {
         //clear CMMU clock force on
         CLEAR_PERI_REG_MASK(EXTMEM_CACHE_MMU_POWER_CTRL_REG, EXTMEM_CACHE_MMU_MEM_FORCE_ON);
+        //clear clkgate force on
+        REG_WRITE(APB_CTRL_CLKGATE_FORCE_ON_REG, 0);
         //clear tag clock force on
         CLEAR_PERI_REG_MASK(EXTMEM_DCACHE_TAG_POWER_CTRL_REG, EXTMEM_DCACHE_TAG_MEM_FORCE_ON);
         CLEAR_PERI_REG_MASK(EXTMEM_ICACHE_TAG_POWER_CTRL_REG, EXTMEM_ICACHE_TAG_MEM_FORCE_ON);
@@ -112,6 +115,8 @@ void rtc_init(rtc_config_t cfg)
         } else {
             CLEAR_PERI_REG_MASK(RTC_CNTL_REG, RTC_CNTL_DBOOST_FORCE_PD);
         }
+        //clear i2c_reset_protect pd force, need tested in low temperature.
+        CLEAR_PERI_REG_MASK(RTC_CNTL_ANA_CONF_REG, RTC_CNTL_I2C_RESET_POR_FORCE_PD);
 
         /* If this mask is enabled, all soc memories cannot enter power down mode */
         /* We should control soc memory power down mode from RTC, so we will not touch this register any more */
@@ -121,18 +126,25 @@ void rtc_init(rtc_config_t cfg)
         rtc_sleep_pu_config_t pu_cfg = RTC_SLEEP_PU_CONFIG_ALL(0);
         rtc_sleep_pu(pu_cfg);
 
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_DG_WRAP_FORCE_PU);
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_WIFI_FORCE_PU);
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_BT_FORCE_PU);
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_CPU_TOP_FORCE_PU);
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_DG_PERI_FORCE_PU);
-
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_WRAP_FORCE_NOISO);
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_WIFI_FORCE_NOISO);
-        CLEAR_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_FORCE_NOISO);
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_BT_FORCE_NOISO);
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_CPU_TOP_FORCE_NOISO);
-        CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_PERI_FORCE_NOISO);
+        REG_CLR_BIT(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_DG_WRAP_FORCE_PU);
+        REG_CLR_BIT(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_WRAP_FORCE_NOISO | RTC_CNTL_DG_WRAP_FORCE_ISO);
+
+        REG_CLR_BIT(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_WIFI_FORCE_NOISO | RTC_CNTL_WIFI_FORCE_ISO);
+        REG_CLR_BIT(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_WIFI_FORCE_PU);
+
+        REG_CLR_BIT(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_BT_FORCE_NOISO | RTC_CNTL_BT_FORCE_ISO);
+        REG_CLR_BIT(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_BT_FORCE_PU);
+
+        REG_CLR_BIT(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_CPU_TOP_FORCE_NOISO | RTC_CNTL_CPU_TOP_FORCE_ISO);
+        REG_CLR_BIT(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_CPU_TOP_FORCE_PU);
+
+        REG_CLR_BIT(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_PERI_FORCE_NOISO | RTC_CNTL_DG_PERI_FORCE_ISO);
+        REG_CLR_BIT(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_DG_PERI_FORCE_PU);
+
+        REG_CLR_BIT(RTC_CNTL_PWC_REG, RTC_CNTL_FORCE_NOISO);
+        REG_CLR_BIT(RTC_CNTL_PWC_REG, RTC_CNTL_FORCE_ISO);
+        REG_CLR_BIT(RTC_CNTL_PWC_REG, RTC_CNTL_FORCE_PU);
+
         //cancel digital PADS force no iso
         if (cfg.cpu_waiti_clk_gate) {
             CLEAR_PERI_REG_MASK(SYSTEM_CPU_PER_CONF_REG, SYSTEM_CPU_WAIT_MODE_FORCE_ON);
@@ -163,7 +175,7 @@ void rtc_init(rtc_config_t cfg)
             cal_clk  = RTC_CAL_8MD256;
         }
 
-        uint64_t max_delay_time_us = 10000;
+        uint64_t max_delay_time_us = 30000;
         uint32_t slow_clk_period = rtc_clk_cal(cal_clk, 100);
         uint64_t max_delay_cycle = rtc_time_us_to_slowclk(max_delay_time_us, slow_clk_period);
         uint64_t cycle0 = rtc_time_get();

components/esp_hw_support/port/esp32s3/rtc_sleep.c

@@ -26,6 +26,7 @@
 #include "soc/fe_reg.h"
 #include "soc/rtc.h"
 #include "regi2c_ctrl.h"
+#include "soc/rtc.h"
 
 #define RTC_CNTL_MEM_FOLW_CPU (RTC_CNTL_SLOWMEM_FOLW_CPU | RTC_CNTL_FASTMEM_FOLW_CPU)
 
@@ -37,6 +38,7 @@ void rtc_sleep_pu(rtc_sleep_pu_config_t cfg)
 {
     REG_SET_FIELD(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_LSLP_MEM_FORCE_PU, cfg.dig_fpu);
     REG_SET_FIELD(RTC_CNTL_PWC_REG, RTC_CNTL_FASTMEM_FORCE_LPU, cfg.rtc_fpu);
+    REG_SET_FIELD(RTC_CNTL_PWC_REG, RTC_CNTL_SLOWMEM_FORCE_LPU, cfg.rtc_fpu);
     REG_SET_FIELD(APB_CTRL_FRONT_END_MEM_PD_REG, APB_CTRL_DC_MEM_FORCE_PU, cfg.fe_fpu);
     REG_SET_FIELD(APB_CTRL_FRONT_END_MEM_PD_REG, APB_CTRL_PBUS_MEM_FORCE_PU, cfg.fe_fpu);
     REG_SET_FIELD(APB_CTRL_FRONT_END_MEM_PD_REG, APB_CTRL_AGC_MEM_FORCE_PU, cfg.fe_fpu);
@@ -66,52 +68,40 @@ void rtc_sleep_init(rtc_sleep_config_t cfg)
         rtc_sleep_pu(pu_cfg);
     }
 
-    if (cfg.rtc_mem_inf_follow_cpu) {
-        SET_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_MEM_FOLW_CPU);
-    } else {
-        CLEAR_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_MEM_FOLW_CPU);
-    }
-
-    if (cfg.rtc_fastmem_pd_en) {
-        CLEAR_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_FASTMEM_FORCE_NOISO);
-    } else {
-        SET_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_FASTMEM_FORCE_NOISO);
-    }
-
-    if (cfg.rtc_slowmem_pd_en) {
-        CLEAR_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_SLOWMEM_FORCE_NOISO);
-    } else {
-        SET_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_SLOWMEM_FORCE_NOISO);
-    }
-
-    if (cfg.rtc_peri_pd_en) {
-        SET_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_PD_EN);
-    } else {
-        CLEAR_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_PD_EN);
-    }
-
     if (cfg.wifi_pd_en) {
+        REG_CLR_BIT(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_WIFI_FORCE_NOISO | RTC_CNTL_WIFI_FORCE_ISO);
+        REG_CLR_BIT(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_WIFI_FORCE_PU);
         SET_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_WIFI_PD_EN);
     } else {
         CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_WIFI_PD_EN);
     }
-
     if (cfg.bt_pd_en) {
+        REG_CLR_BIT(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_BT_FORCE_NOISO | RTC_CNTL_BT_FORCE_ISO);
+        REG_CLR_BIT(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_BT_FORCE_PU);
         SET_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_BT_PD_EN);
     } else {
         CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_BT_PD_EN);
     }
     if (cfg.cpu_pd_en) {
+        REG_CLR_BIT(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_CPU_TOP_FORCE_NOISO | RTC_CNTL_CPU_TOP_FORCE_ISO);
+        REG_CLR_BIT(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_CPU_TOP_FORCE_PU);
         SET_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_CPU_TOP_PD_EN);
     } else {
         CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_CPU_TOP_PD_EN);
     }
     if (cfg.dig_peri_pd_en) {
+        REG_CLR_BIT(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_PERI_FORCE_NOISO | RTC_CNTL_DG_PERI_FORCE_ISO);
+        REG_CLR_BIT(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_DG_PERI_FORCE_PU);
         SET_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_DG_PERI_PD_EN);
     } else {
         CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_DG_PERI_PD_EN);
     }
-
+    if (cfg.rtc_peri_pd_en) {
+        REG_CLR_BIT(RTC_CNTL_PWC_REG, RTC_CNTL_FORCE_NOISO | RTC_CNTL_FORCE_ISO | RTC_CNTL_FORCE_PU);
+        SET_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_PD_EN);
+    } else {
+        CLEAR_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_PD_EN);
+    }
     REG_SET_FIELD(RTC_CNTL_BIAS_CONF_REG, RTC_CNTL_DBG_ATTEN_MONITOR, RTC_CNTL_DBG_ATTEN_MONITOR_DEFAULT);
     REG_SET_FIELD(RTC_CNTL_BIAS_CONF_REG, RTC_CNTL_BIAS_SLEEP_MONITOR, RTC_CNTL_BIASSLP_MONITOR_DEFAULT);
     REG_SET_FIELD(RTC_CNTL_BIAS_CONF_REG, RTC_CNTL_BIAS_SLEEP_DEEP_SLP, RTC_CNTL_BIASSLP_SLEEP_DEFAULT);
@@ -126,10 +116,13 @@ void rtc_sleep_init(rtc_sleep_config_t cfg)
                             RTC_CNTL_RFRX_PBUS_PU | RTC_CNTL_TXRF_I2C_PU);
         CLEAR_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG, RTC_CNTL_BB_I2C_FORCE_PU);
     } else {
+        REG_SET_FIELD(RTC_CNTL_REGULATOR_DRV_CTRL_REG, RTC_CNTL_DG_VDD_DRV_B_SLP, RTC_CNTL_DG_VDD_DRV_B_SLP_DEFAULT);
         SET_PERI_REG_MASK(RTC_CNTL_REG, RTC_CNTL_REGULATOR_FORCE_PU);
         CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_DG_WRAP_PD_EN);
         REG_SET_FIELD(RTC_CNTL_BIAS_CONF_REG, RTC_CNTL_DBG_ATTEN_DEEP_SLP, RTC_CNTL_DBG_ATTEN_LIGHTSLEEP_DEFAULT);
     }
+    /* mem pd */
+    CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_LSLP_MEM_FORCE_PU);
 
     /* enable VDDSDIO control by state machine */
     REG_CLR_BIT(RTC_CNTL_SDIO_CONF_REG, RTC_CNTL_SDIO_FORCE);
@@ -142,6 +135,9 @@ void rtc_sleep_init(rtc_sleep_config_t cfg)
 
     REG_SET_FIELD(RTC_CNTL_SLP_REJECT_CONF_REG, RTC_CNTL_DEEP_SLP_REJECT_EN, cfg.deep_slp_reject);
     REG_SET_FIELD(RTC_CNTL_SLP_REJECT_CONF_REG, RTC_CNTL_LIGHT_SLP_REJECT_EN, cfg.light_slp_reject);
+
+    /* gating XTAL clock */
+    REG_CLR_BIT(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_XTAL_GLOBAL_FORCE_NOGATING);
 }
 
 void rtc_sleep_low_init(uint32_t slowclk_period)
@@ -158,6 +154,8 @@ void rtc_sleep_set_wakeup_time(uint64_t t)
     WRITE_PERI_REG(RTC_CNTL_SLP_TIMER1_REG, t >> 32);
 }
 
+static uint32_t rtc_sleep_finish(uint32_t lslp_mem_inf_fpu);
+
 __attribute__((weak)) uint32_t rtc_sleep_start(uint32_t wakeup_opt, uint32_t reject_opt, uint32_t lslp_mem_inf_fpu)
 {
     REG_SET_FIELD(RTC_CNTL_WAKEUP_STATE_REG, RTC_CNTL_WAKEUP_ENA, wakeup_opt);
@@ -173,6 +171,11 @@ __attribute__((weak)) uint32_t rtc_sleep_start(uint32_t wakeup_opt, uint32_t rej
                              RTC_CNTL_SLP_REJECT_INT_RAW | RTC_CNTL_SLP_WAKEUP_INT_RAW) == 0) {
         ;
     }
+    return rtc_sleep_finish(lslp_mem_inf_fpu);
+}
+
+static uint32_t rtc_sleep_finish(uint32_t lslp_mem_inf_fpu)
+{
     /* In deep sleep mode, we never get here */
     uint32_t reject = REG_GET_FIELD(RTC_CNTL_INT_RAW_REG, RTC_CNTL_SLP_REJECT_INT_RAW);
     SET_PERI_REG_MASK(RTC_CNTL_INT_CLR_REG,

components/soc/esp32s3/include/soc/rtc.h

@@ -125,6 +125,7 @@ set sleep_init default param
 #define RTC_CNTL_BIASSLP_SLEEP_DEFAULT  1
 #define RTC_CNTL_PD_CUR_MONITOR_DEFAULT  1
 #define RTC_CNTL_PD_CUR_SLEEP_DEFAULT  1
+#define RTC_CNTL_DG_VDD_DRV_B_SLP_DEFAULT 0xf
 
 /**
  * @brief Possible main XTAL frequency values.
@@ -266,10 +267,16 @@ typedef struct {
 #define RTC_INIT_CONFIG_DEFAULT() { \
     .wifi_powerup_cycles = OTHER_BLOCKS_POWERUP, \
     .wifi_wait_cycles = OTHER_BLOCKS_WAIT, \
+    .bt_powerup_cycles = OTHER_BLOCKS_POWERUP, \
+    .bt_wait_cycles = OTHER_BLOCKS_WAIT, \
     .rtc_powerup_cycles = OTHER_BLOCKS_POWERUP, \
     .rtc_wait_cycles = OTHER_BLOCKS_WAIT, \
+    .cpu_top_powerup_cycles = OTHER_BLOCKS_POWERUP, \
+    .cpu_top_wait_cycles = OTHER_BLOCKS_WAIT, \
     .dg_wrap_powerup_cycles = OTHER_BLOCKS_POWERUP, \
     .dg_wrap_wait_cycles = OTHER_BLOCKS_WAIT, \
+    .dg_peri_powerup_cycles = OTHER_BLOCKS_POWERUP, \
+    .dg_peri_wait_cycles = OTHER_BLOCKS_WAIT, \
     .rtc_mem_powerup_cycles = OTHER_BLOCKS_POWERUP, \
     .rtc_mem_wait_cycles = OTHER_BLOCKS_WAIT, \
 }
@@ -662,6 +669,9 @@ typedef struct {
     .rtc_slowmem_pd_en = ((sleep_flags) & RTC_SLEEP_PD_RTC_SLOW_MEM) ? 1 : 0, \
     .rtc_peri_pd_en = ((sleep_flags) & RTC_SLEEP_PD_RTC_PERIPH) ? 1 : 0, \
     .wifi_pd_en = ((sleep_flags) & RTC_SLEEP_PD_WIFI) ? 1 : 0, \
+    .bt_pd_en = ((sleep_flags) & RTC_SLEEP_PD_BT) ? 1 : 0, \
+    .cpu_pd_en = ((sleep_flags) & RTC_SLEEP_PD_CPU) ? 1 : 0, \
+    .dig_peri_pd_en = ((sleep_flags) & RTC_SLEEP_PD_DIG_PERIPH) ? 1 : 0, \
     .deep_slp = ((sleep_flags) & RTC_SLEEP_PD_DIG) ? 1 : 0, \
     .wdt_flashboot_mod_en = 0, \
     .dig_dbias_wak = RTC_CNTL_DBIAS_1V10, \
@@ -679,7 +689,10 @@ typedef struct {
 #define RTC_SLEEP_PD_RTC_FAST_MEM       BIT(3)  //!< Power down RTC FAST memory
 #define RTC_SLEEP_PD_RTC_MEM_FOLLOW_CPU BIT(4)  //!< RTC FAST and SLOW memories are automatically powered up and down along with the CPU
 #define RTC_SLEEP_PD_VDDSDIO            BIT(5)  //!< Power down VDDSDIO regulator
-#define RTC_SLEEP_PD_WIFI               BIT(6)
+#define RTC_SLEEP_PD_WIFI               BIT(6)  //!< Power down WIFI
+#define RTC_SLEEP_PD_BT                 BIT(7)  //!< Power down BT
+#define RTC_SLEEP_PD_CPU                BIT(8)  //!< Power down CPU when in lightsleep, but not restart
+#define RTC_SLEEP_PD_DIG_PERIPH         BIT(9)  //!< Power down DIG peripherals
 
 /**
  * @brief Prepare the chip to enter sleep mode