1 // Copyright 2020 Espressif Systems (Shanghai) PTE LTD
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "soc/rtc.h"
16
17 #ifdef BOOTLOADER_BUILD
18
esp_clk_apb_freq(void)19 int esp_clk_apb_freq(void)
20 {
21 return rtc_clk_apb_freq_get();
22 }
23
24 #endif // BOOTLOADER_BUILD
25