1 /*
2 ** ###################################################################
3 ** Processors: MIMX9131CVVXJ
4 ** MIMX9131DVVXJ
5 **
6 ** Compilers: GNU C Compiler
7 ** IAR ANSI C/C++ Compiler for ARM
8 ** Keil ARM C/C++ Compiler
9 **
10 ** Reference manual: IMX91RM Rev.1
11 ** Version: rev. 1.0, 2024-11-15
12 ** Build: b250112
13 **
14 ** Abstract:
15 ** Provides a system configuration function and a global variable that
16 ** contains the system frequency. It configures the device and initializes
17 ** the oscillator (PLL) that is part of the microcontroller device.
18 **
19 ** Copyright 2016 Freescale Semiconductor, Inc.
20 ** Copyright 2016-2025 NXP
21 ** SPDX-License-Identifier: BSD-3-Clause
22 **
23 ** http: www.nxp.com
24 ** mail: support@nxp.com
25 **
26 ** Revisions:
27 ** - rev. 1.0 (2024-11-15)
28 ** Initial version.
29 **
30 ** ###################################################################
31 */
32
33 /*!
34 * @file MIMX9131
35 * @version 1.0
36 * @date 2024-11-15
37 * @brief Device specific configuration file for MIMX9131 (implementation file)
38 *
39 * Provides a system configuration function and a global variable that contains
40 * the system frequency. It configures the device and initializes the oscillator
41 * (PLL) that is part of the microcontroller device.
42 */
43
44 #include <stdint.h>
45 #include "fsl_device_registers.h"
46
47
48
49 /* ----------------------------------------------------------------------------
50 -- Core clock
51 ---------------------------------------------------------------------------- */
52
53 uint32_t SystemCoreClock = DEFAULT_SYSTEM_CLOCK;
54
55 /* ----------------------------------------------------------------------------
56 -- SystemInit()
57 ---------------------------------------------------------------------------- */
58
SystemInit(void)59 void SystemInit (void) {
60 #if ((__FPU_PRESENT == 1) && (__FPU_USED == 1))
61 __ASM volatile("mov x0, #(3 << 20) \n\t"
62 "msr cpacr_el1, x0");
63 #endif /* ((__FPU_PRESENT == 1) && (__FPU_USED == 1)) */
64 SystemInitHook();
65
66 ARM_TIMER_GetFreq(&SystemCoreClock);
67 }
68
69 /* ----------------------------------------------------------------------------
70 -- SystemCoreClockUpdate()
71 ---------------------------------------------------------------------------- */
72
SystemCoreClockUpdate(void)73 void SystemCoreClockUpdate (void) {
74 }
75
76 /* ----------------------------------------------------------------------------
77 -- SystemInitHook()
78 ---------------------------------------------------------------------------- */
79
SystemInitHook(void)80 __attribute__ ((weak)) void SystemInitHook (void) {
81 /* Void implementation of the weak function. */
82 }
83
