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23 
24         XTENSA INITIALIZATION ROUTINES CODED IN C
25 
26 This file contains miscellaneous Xtensa RTOS-generic initialization functions
27 that are implemented in C.
28 
29 *******************************************************************************/
30 
31 
32 #ifdef XT_BOARD
33 #include "xtensa/xtbsp.h"
34 #endif
35 
36 #include "xtensa_rtos.h"
37 #include "sdkconfig.h"
38 #if CONFIG_IDF_TARGET_ESP32
39 #include "esp32/clk.h"
40 #elif CONFIG_IDF_TARGET_ESP32S2
41 #include "esp32s2/clk.h"
42 #elif CONFIG_IDF_TARGET_ESP32S3
43 #include "esp32s3/clk.h"
44 #endif
45 
46 #ifdef XT_RTOS_TIMER_INT
47 
48 unsigned _xt_tick_divisor = 0;  /* cached number of cycles per tick */
49 
_xt_tick_divisor_init(void)50 void _xt_tick_divisor_init(void)
51 {
52     _xt_tick_divisor = esp_clk_cpu_freq() / XT_TICK_PER_SEC;
53 }
54 
55 /* Deprecated, to be removed */
xt_clock_freq(void)56 int xt_clock_freq(void)
57 {
58     return esp_clk_cpu_freq();
59 }
60 
61 #endif /* XT_RTOS_TIMER_INT */
62