components/pm: Add sleep related code iram opt chioce

components/esp_common/linker.lf

@@ -2,3 +2,9 @@
 archive: libesp_common.a
 entries:
     esp_err (noflash)
+    if PM_RTOS_IDLE_OPT = y:
+        freertos_hooks:esp_vApplicationIdleHook (noflash)
+        task_wdt:idle_hook_cb (noflash)
+        task_wdt:esp_task_wdt_reset (noflash)
+        task_wdt:find_task_in_twdt_list (noflash)
+        task_wdt:reset_hw_timer (noflash)

components/esp_hw_support/linker.lf

@@ -11,3 +11,5 @@ entries:
     rtc_sleep (noflash_text)
     rtc_time (noflash_text)
     rtc_wdt (noflash_text)
+    if PM_SLP_IRAM_OPT = y:
+        rtc_init:rtc_vddsdio_get_config (noflash)

components/esp_pm/CMakeLists.txt

@@ -1,2 +1,3 @@
 idf_component_register(SRCS "pm_locks.c" "pm_trace.c" "pm_impl.c"
-                       INCLUDE_DIRS include)
+                       INCLUDE_DIRS include
+                       LDFRAGMENTS linker.lf)

components/esp_pm/Kconfig

@@ -59,5 +59,23 @@ menu "Power Management"
             of power management implementation, and should be kept disabled in
             applications.
 
+    config PM_SLP_IRAM_OPT
+        bool "Put lightsleep related codes in internal RAM"
+        depends on FREERTOS_USE_TICKLESS_IDLE
+        default n
+        help
+            If enabled, about 1.8KB of lightsleep related codes would be in IRAM and chip would sleep
+            longer for 760us at most each time.
+            This feature is intended to be used when a lower power management mode is needed
+            regardless of the internal memory.
 
+    config PM_RTOS_IDLE_OPT
+        bool "Put RTOS IDLE related codes in internal RAM"
+        depends on FREERTOS_USE_TICKLESS_IDLE
+        default n
+        help
+            If enabled, about 260B of RTOS_IDLE related codes would be in IRAM and chip would sleep
+            longer for 40us at most each time.
+            This feature is intended to be used when a lower power management mode is needed
+            regardless of the internal memory.
 endmenu # "Power Management"

components/esp_pm/component.mk

@@ -1,2 +1,3 @@
 COMPONENT_SRCDIRS := .
 COMPONENT_ADD_INCLUDEDIRS := include
+COMPONENT_ADD_LDFRAGMENTS += linker.lf

components/esp_pm/linker.lf

@@ -0,0 +1,6 @@
+[mapping:esp_pm]
+archive: libesp_pm.a
+entries:
+    if PM_RTOS_IDLE_OPT = y:
+        pm_impl:esp_pm_impl_idle_hook (noflash)
+        pm_impl:esp_pm_impl_waiti (noflash)

components/esp_system/linker.lf

@@ -23,6 +23,12 @@ entries:
         usb_console:esp_usb_console_cdc_acm_cb (noflash)
         usb_console:esp_usb_console_dfu_detach_cb (noflash)
         usb_console:esp_usb_console_before_restart (noflash)
+    if PM_SLP_IRAM_OPT = y:
+        sleep_modes:esp_light_sleep_start (noflash)
+        sleep_modes:esp_sleep_enable_timer_wakeup (noflash)
+        sleep_modes:timer_wakeup_prepare (noflash)
+        sleep_modes:get_power_down_flags (noflash)
+
 
 [mapping:vfs_cdcacm]
 archive: libvfs.a

components/esp_timer/CMakeLists.txt

@@ -15,4 +15,5 @@ idf_component_register(SRCS "${srcs}"
                     INCLUDE_DIRS include
                     PRIV_INCLUDE_DIRS private_include
                     REQUIRES esp_common
-                    PRIV_REQUIRES soc driver "${target}")
+                    PRIV_REQUIRES soc driver "${target}"
+                    LDFRAGMENTS linker.lf)

components/esp_timer/component.mk

@@ -20,3 +20,5 @@ ifdef CONFIG_IDF_TARGET_ESP32
 else
     $(error esp_timer is only supported by the Make build system for esp32 chip. For other chips, use the Cmake build system)
 endif
+
+COMPONENT_ADD_LDFRAGMENTS += linker.lf

components/esp_timer/linker.lf

@@ -0,0 +1,10 @@
+[mapping:esp_timer]
+archive: libesp_timer.a
+entries:
+    if PM_SLP_IRAM_OPT = y:
+        esp_timer_impl_lac:esp_timer_impl_lock (noflash)
+        esp_timer_impl_lac:esp_timer_impl_unlock (noflash)
+        esp_timer_impl_lac:esp_timer_impl_advance (noflash)
+        esp_timer_impl_systimer:esp_timer_impl_lock (noflash)
+        esp_timer_impl_systimer:esp_timer_impl_unlock (noflash)
+        esp_timer_impl_systimer:esp_timer_impl_advance (noflash)

components/newlib/newlib.lf

@@ -3,3 +3,10 @@ archive: libnewlib.a
 entries:
   heap (noflash)
   abort (noflash)
+  if PM_SLP_IRAM_OPT = y:
+    esp_time_impl:esp_time_impl_set_boot_time (noflash)
+    esp_time_impl:esp_time_impl_get_boot_time (noflash)
+    esp_time_impl:esp_clk_slowclk_cal_get (noflash)
+    esp_time_impl:esp_rtc_get_time_us (noflash)
+    esp_time_impl:esp_clk_slowclk_cal_set (noflash)
+    esp_time_impl:esp_set_time_from_rtc (noflash)