esp32: move brownout and cache err int setup

components/esp32s2/CMakeLists.txt

@@ -11,8 +11,7 @@ if(BOOTLOADER_BUILD)
 else()
     # Regular app build
 
-    set(srcs "cache_err_int.c"
-             "memprot.c"
+    set(srcs "memprot.c"
              "clk.c"
              "crosscore_int.c"
              "dport_access.c"

components/esp32s2/cache_err_int.c

@@ -1,86 +0,0 @@
-// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/*
- The cache has an interrupt that can be raised as soon as an access to a cached
- region (flash, psram) is done without the cache being enabled. We use that here
- to panic the CPU, which from a debugging perspective is better than grabbing bad
- data from the bus.
-*/
-
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-
-#include "esp_err.h"
-#include "esp_attr.h"
-
-#include "esp_intr_alloc.h"
-
-#include "soc/extmem_reg.h"
-#include "soc/dport_reg.h"
-#include "soc/periph_defs.h"
-#include "hal/cpu_hal.h"
-
-#include "esp32s2/dport_access.h"
-#include "esp32s2/rom/ets_sys.h"  // for intr_matrix_set
-
-#include "sdkconfig.h"
-
-void esp_cache_err_int_init(void)
-{
-    uint32_t core_id = cpu_hal_get_core_id();
-    ESP_INTR_DISABLE(ETS_MEMACCESS_ERR_INUM);
-
-    // We do not register a handler for the interrupt because it is interrupt
-    // level 4 which is not serviceable from C. Instead, xtensa_vectors.S has
-    // a call to the panic handler for
-    // this interrupt.
-    intr_matrix_set(core_id, ETS_CACHE_IA_INTR_SOURCE, ETS_MEMACCESS_ERR_INUM);
-
-    // Enable invalid cache access interrupt when the cache is disabled.
-    // The status bits are cleared first, in case we are restarting after
-    // a cache error has triggered.
-    DPORT_SET_PERI_REG_MASK(EXTMEM_CACHE_DBG_INT_CLR_REG,
-                            EXTMEM_MMU_ENTRY_FAULT_INT_CLR |
-                            EXTMEM_DCACHE_REJECT_INT_CLR |
-                            EXTMEM_DCACHE_WRITE_FLASH_INT_CLR |
-                            EXTMEM_DC_PRELOAD_SIZE_FAULT_INT_CLR |
-                            EXTMEM_DC_SYNC_SIZE_FAULT_INT_CLR |
-                            EXTMEM_ICACHE_REJECT_INT_CLR |
-                            EXTMEM_IC_PRELOAD_SIZE_FAULT_INT_CLR |
-                            EXTMEM_IC_SYNC_SIZE_FAULT_INT_CLR);
-    DPORT_SET_PERI_REG_MASK(EXTMEM_CACHE_DBG_INT_ENA_REG,
-                            EXTMEM_MMU_ENTRY_FAULT_INT_ENA |
-                            EXTMEM_DCACHE_REJECT_INT_ENA |
-                            EXTMEM_DCACHE_WRITE_FLASH_INT_ENA |
-                            EXTMEM_DC_PRELOAD_SIZE_FAULT_INT_ENA |
-                            EXTMEM_DC_SYNC_SIZE_FAULT_INT_ENA |
-                            EXTMEM_ICACHE_REJECT_INT_ENA |
-                            EXTMEM_IC_PRELOAD_SIZE_FAULT_INT_ENA |
-                            EXTMEM_IC_SYNC_SIZE_FAULT_INT_ENA |
-                            EXTMEM_CACHE_DBG_EN);
-
-    ESP_INTR_ENABLE(ETS_MEMACCESS_ERR_INUM);
-}
-
-int IRAM_ATTR esp_cache_err_get_cpuid(void)
-{
-    if (REG_READ(EXTMEM_CACHE_DBG_STATUS0_REG) != 0 ||
-        REG_READ(EXTMEM_CACHE_DBG_STATUS1_REG) != 0) {
-            return PRO_CPU_NUM;
-    }
-    return -1;
-}

components/esp32s2/include/esp32s2/brownout.h

@@ -1,31 +0,0 @@
-// Copyright 2015-2021 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-
-#ifndef __ESP_BROWNOUT_H
-#define __ESP_BROWNOUT_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-void esp_brownout_init(void);
-
-void esp_brownout_disable(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

components/esp32s2/include/esp32s2/cache_err_int.h

@@ -1,40 +0,0 @@
-// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * @brief initialize cache invalid access interrupt
- *
- * This function enables cache invalid access interrupt source and connects it
- * to interrupt input number ETS_MEMACCESS_ERR_INUM (see soc/soc.h). It is called
- * from the startup code.
- */
-void esp_cache_err_int_init(void);
-
-
-/**
- * @brief get the CPU which caused cache invalid access interrupt
- * @return
- *  - PRO_CPU_NUM, if PRO_CPU has caused cache IA interrupt
- *  - APP_CPU_NUM, if APP_CPU has caused cache IA interrupt
- *  - (-1) otherwise
- */
-int esp_cache_err_get_cpuid(void);
-
-#ifdef __cplusplus
-}
-#endif