fix(MMU): fixed mmap deadlock when using multicore app with unicore b…

…ootloader

Closes #11617

components/esp_system/port/cpu_start.c

@@ -330,6 +330,17 @@ static void start_other_core(void)
 }
 
 #if !SOC_CACHE_INTERNAL_MEM_VIA_L1CACHE
+#if CONFIG_IDF_TARGET_ESP32
+static void restore_app_mmu_from_pro_mmu(void)
+{
+    const int mmu_reg_num = 2048;
+    volatile uint32_t* from = (uint32_t*)DR_REG_FLASH_MMU_TABLE_PRO;
+    volatile uint32_t* to = (uint32_t*)DR_REG_FLASH_MMU_TABLE_APP;
+    for (int i = 0; i < mmu_reg_num; i++) {
+        *(to++) = *(from++);
+    }
+}
+#endif
 // This function is needed to make the multicore app runnable on a unicore bootloader (built with FREERTOS UNICORE).
 // It does some cache settings for other CPUs.
 void IRAM_ATTR do_multicore_settings(void)
@@ -341,9 +352,11 @@ void IRAM_ATTR do_multicore_settings(void)
         Cache_Read_Disable(1);
         Cache_Flush(1);
         DPORT_REG_SET_BIT(DPORT_APP_CACHE_CTRL1_REG, DPORT_APP_CACHE_MMU_IA_CLR);
+        mmu_init(1);
         DPORT_REG_CLR_BIT(DPORT_APP_CACHE_CTRL1_REG, DPORT_APP_CACHE_MMU_IA_CLR);
         // We do not enable cache for CPU1 now because it will be done later in start_other_core().
     }
+    restore_app_mmu_from_pro_mmu();
 #endif
 
     cache_bus_mask_t cache_bus_mask_core0 = cache_ll_l1_get_enabled_bus(0);