2 * Copyright (c) 2016, Freescale Semiconductor, Inc.
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3 * Copyright 2016 - 2019 , NXP
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4 * All rights reserved.
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7 * SPDX-License-Identifier: BSD-3-Clause
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10 #ifndef _FSL_CLOCK_H_
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11 #define _FSL_CLOCK_H_
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13 #include "fsl_common.h"
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15 /*! @addtogroup clock */
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20 /*******************************************************************************
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22 *****************************************************************************/
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24 /*! @name Driver version */
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26 /*! @brief CLOCK driver version 2.2.0. */
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27 #define FSL_CLOCK_DRIVER_VERSION (MAKE_VERSION(2, 2, 0))
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30 /* Definition for delay API in clock driver, users can redefine it to the real application. */
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31 #ifndef SDK_DEVICE_MAXIMUM_CPU_CLOCK_FREQUENCY
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32 #define SDK_DEVICE_MAXIMUM_CPU_CLOCK_FREQUENCY (96000000UL)
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36 * @brief User-defined the size of cache for CLOCK_PllGetConfig() function.
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38 * Once define this MACRO to be non-zero value, CLOCK_PllGetConfig() function
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39 * would cache the recent calulation and accelerate the execution to get the
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42 #ifndef CLOCK_USR_CFG_PLL_CONFIG_CACHE_COUNT
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43 #define CLOCK_USR_CFG_PLL_CONFIG_CACHE_COUNT 2U
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46 /*! @brief Clock ip name array for FLEXCOMM. */
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47 #define FLEXCOMM_CLOCKS \
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49 kCLOCK_FlexComm0, kCLOCK_FlexComm1, kCLOCK_FlexComm2, kCLOCK_FlexComm3, kCLOCK_FlexComm4, kCLOCK_FlexComm5, \
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50 kCLOCK_FlexComm6, kCLOCK_FlexComm7 \
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52 /*! @brief Clock ip name array for LPUART. */
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53 #define LPUART_CLOCKS \
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55 kCLOCK_MinUart0, kCLOCK_MinUart1, kCLOCK_MinUart2, kCLOCK_MinUart3, kCLOCK_MinUart4, kCLOCK_MinUart5, \
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56 kCLOCK_MinUart6, kCLOCK_MinUart7 \
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59 /*! @brief Clock ip name array for BI2C. */
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60 #define BI2C_CLOCKS \
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62 kCLOCK_BI2c0, kCLOCK_BI2c1, kCLOCK_BI2c2, kCLOCK_BI2c3, kCLOCK_BI2c4, kCLOCK_BI2c5, kCLOCK_BI2c6, kCLOCK_BI2c7 \
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64 /*! @brief Clock ip name array for LSPI. */
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65 #define LPSI_CLOCKS \
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67 kCLOCK_LSpi0, kCLOCK_LSpi1, kCLOCK_LSpi2, kCLOCK_LSpi3, kCLOCK_LSpi4, kCLOCK_LSpi5, kCLOCK_LSpi6, kCLOCK_LSpi7 \
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69 /*! @brief Clock ip name array for FLEXI2S. */
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70 #define FLEXI2S_CLOCKS \
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72 kCLOCK_FlexI2s0, kCLOCK_FlexI2s1, kCLOCK_FlexI2s2, kCLOCK_FlexI2s3, kCLOCK_FlexI2s4, kCLOCK_FlexI2s5, \
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73 kCLOCK_FlexI2s6, kCLOCK_FlexI2s7 \
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75 /*! @brief Clock ip name array for UTICK. */
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76 #define UTICK_CLOCKS \
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80 /*! @brief Clock ip name array for DMA. */
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81 #define DMA_CLOCKS \
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85 /*! @brief Clock ip name array for CT32B. */
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86 #define CTIMER_CLOCKS \
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88 kCLOCK_Ctimer0, kCLOCK_Ctimer1, kCLOCK_Ctimer3 \
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91 /*! @brief Clock ip name array for GPIO. */
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92 #define GPIO_CLOCKS \
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94 kCLOCK_Gpio0, kCLOCK_Gpio1 \
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96 /*! @brief Clock ip name array for ADC. */
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97 #define ADC_CLOCKS \
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101 /*! @brief Clock ip name array for MRT. */
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102 #define MRT_CLOCKS \
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106 /*! @brief Clock ip name array for MRT. */
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107 #define SCT_CLOCKS \
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111 /*! @brief Clock ip name array for RTC. */
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112 #define RTC_CLOCKS \
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116 /*! @brief Clock ip name array for WWDT. */
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117 #define WWDT_CLOCKS \
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121 /*! @brief Clock ip name array for CRC. */
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122 #define CRC_CLOCKS \
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126 /*! @brief Clock ip name array for USBD. */
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127 #define USBD_CLOCKS \
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132 /*! @brief Clock ip name array for GINT. GINT0 & GINT1 share same slot */
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133 #define GINT_CLOCKS \
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135 kCLOCK_Gint, kCLOCK_Gint \
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138 /*! @brief Clock gate name used for CLOCK_EnableClock/CLOCK_DisableClock. */
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139 /*------------------------------------------------------------------------------
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140 clock_ip_name_t definition:
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141 ------------------------------------------------------------------------------*/
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143 #define CLK_GATE_REG_OFFSET_SHIFT 8U
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144 #define CLK_GATE_REG_OFFSET_MASK 0xFFFFFF00U
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145 #define CLK_GATE_BIT_SHIFT_SHIFT 0U
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146 #define CLK_GATE_BIT_SHIFT_MASK 0x000000FFU
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148 #define CLK_GATE_DEFINE(reg_offset, bit_shift) \
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149 ((((reg_offset) << CLK_GATE_REG_OFFSET_SHIFT) & CLK_GATE_REG_OFFSET_MASK) | \
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150 (((bit_shift) << CLK_GATE_BIT_SHIFT_SHIFT) & CLK_GATE_BIT_SHIFT_MASK))
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152 #define CLK_GATE_ABSTRACT_REG_OFFSET(x) (((uint32_t)(x)&CLK_GATE_REG_OFFSET_MASK) >> CLK_GATE_REG_OFFSET_SHIFT)
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153 #define CLK_GATE_ABSTRACT_BITS_SHIFT(x) (((uint32_t)(x)&CLK_GATE_BIT_SHIFT_MASK) >> CLK_GATE_BIT_SHIFT_SHIFT)
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155 #define AHB_CLK_CTRL0 0
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156 #define AHB_CLK_CTRL1 1
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157 #define ASYNC_CLK_CTRL0 2
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159 /*! @brief Clock gate name used for CLOCK_EnableClock/CLOCK_DisableClock. */
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160 typedef enum _clock_ip_name
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162 kCLOCK_IpInvalid = 0U,
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163 kCLOCK_Rom = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 1),
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164 kCLOCK_Flash = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 7),
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165 kCLOCK_Fmc = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 8),
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166 kCLOCK_InputMux = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 11),
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167 kCLOCK_Iocon = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 13),
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168 kCLOCK_Gpio0 = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 14),
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169 kCLOCK_Gpio1 = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 15),
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170 kCLOCK_Pint = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 18),
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171 kCLOCK_Gint = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 19), /* GPIO_GLOBALINT0 and GPIO_GLOBALINT1 share the same slot */
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172 kCLOCK_Dma = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 20),
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173 kCLOCK_Crc = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 21),
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174 kCLOCK_Wwdt = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 22),
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175 kCLOCK_Rtc = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 23),
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176 kCLOCK_Adc0 = CLK_GATE_DEFINE(AHB_CLK_CTRL0, 27),
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177 kCLOCK_Mrt = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 0),
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178 kCLOCK_Sct0 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 2),
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179 kCLOCK_Utick = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 10),
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180 kCLOCK_FlexComm0 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 11),
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181 kCLOCK_FlexComm1 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 12),
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182 kCLOCK_FlexComm2 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 13),
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183 kCLOCK_FlexComm3 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 14),
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184 kCLOCK_FlexComm4 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 15),
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185 kCLOCK_FlexComm5 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 16),
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186 kCLOCK_FlexComm6 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 17),
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187 kCLOCK_FlexComm7 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 18),
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188 kCLOCK_MinUart0 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 11),
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189 kCLOCK_MinUart1 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 12),
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190 kCLOCK_MinUart2 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 13),
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191 kCLOCK_MinUart3 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 14),
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192 kCLOCK_MinUart4 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 15),
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193 kCLOCK_MinUart5 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 16),
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194 kCLOCK_MinUart6 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 17),
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195 kCLOCK_MinUart7 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 18),
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196 kCLOCK_LSpi0 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 11),
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197 kCLOCK_LSpi1 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 12),
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198 kCLOCK_LSpi2 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 13),
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199 kCLOCK_LSpi3 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 14),
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200 kCLOCK_LSpi4 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 15),
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201 kCLOCK_LSpi5 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 16),
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202 kCLOCK_LSpi6 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 17),
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203 kCLOCK_LSpi7 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 18),
\r
204 kCLOCK_BI2c0 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 11),
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205 kCLOCK_BI2c1 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 12),
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206 kCLOCK_BI2c2 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 13),
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207 kCLOCK_BI2c3 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 14),
\r
208 kCLOCK_BI2c4 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 15),
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209 kCLOCK_BI2c5 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 16),
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210 kCLOCK_BI2c6 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 17),
\r
211 kCLOCK_BI2c7 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 18),
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212 kCLOCK_FlexI2s0 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 11),
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213 kCLOCK_FlexI2s1 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 12),
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214 kCLOCK_FlexI2s2 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 13),
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215 kCLOCK_FlexI2s3 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 14),
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216 kCLOCK_FlexI2s4 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 15),
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217 kCLOCK_FlexI2s5 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 16),
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218 kCLOCK_FlexI2s6 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 17),
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219 kCLOCK_FlexI2s7 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 18),
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220 kCLOCK_Ct32b2 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 22),
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221 kCLOCK_Usbd0 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 25),
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222 kCLOCK_Ctimer0 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 26),
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223 kCLOCK_Ctimer1 = CLK_GATE_DEFINE(AHB_CLK_CTRL1, 27),
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225 kCLOCK_Ctimer3 = CLK_GATE_DEFINE(ASYNC_CLK_CTRL0, 13),
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228 /*! @brief Clock name used to get clock frequency. */
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229 typedef enum _clock_name
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231 kCLOCK_CoreSysClk, /*!< Core/system clock (aka MAIN_CLK) */
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232 kCLOCK_BusClk, /*!< Bus clock (AHB clock) */
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233 kCLOCK_FroHf, /*!< FRO48/96 */
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234 kCLOCK_Fro12M, /*!< FRO12M */
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235 kCLOCK_ExtClk, /*!< External Clock */
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236 kCLOCK_PllOut, /*!< PLL Output */
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237 kCLOCK_UsbClk, /*!< USB input */
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238 kCLOCK_WdtOsc, /*!< Watchdog Oscillator */
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239 kCLOCK_Frg, /*!< Frg Clock */
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240 kCLOCK_AsyncApbClk, /*!< Async APB clock */
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241 kCLOCK_FlexI2S, /*!< FlexI2S clock */
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242 kCLOCK_Flexcomm0, /*!< Flexcomm0Clock */
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243 kCLOCK_Flexcomm1, /*!< Flexcomm1Clock */
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244 kCLOCK_Flexcomm2, /*!< Flexcomm2Clock */
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245 kCLOCK_Flexcomm3, /*!< Flexcomm3Clock */
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246 kCLOCK_Flexcomm4, /*!< Flexcomm4Clock */
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247 kCLOCK_Flexcomm5, /*!< Flexcomm5Clock */
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248 kCLOCK_Flexcomm6, /*!< Flexcomm6Clock */
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249 kCLOCK_Flexcomm7, /*!< Flexcomm7Clock */
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253 * Clock source selections for the asynchronous APB clock
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255 typedef enum _async_clock_src
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257 kCLOCK_AsyncMainClk = 0, /*!< Main System clock */
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258 kCLOCK_AsyncFro12Mhz, /*!< 12MHz FRO */
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259 } async_clock_src_t;
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261 /*! @brief Clock Mux Switches
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262 * The encoding is as follows each connection identified is 32bits wide while 24bits are valuable
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263 * starting from LSB upwards
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265 * [4 bits for choice, 0 means invalid choice] [8 bits mux ID]*
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269 #define CLK_ATTACH_ID(mux, sel, pos) (((mux << 0U) | ((sel + 1) & 0xFU) << 8U) << (pos * 12U))
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270 #define MUX_A(mux, sel) CLK_ATTACH_ID(mux, sel, 0U)
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271 #define MUX_B(mux, sel, selector) (CLK_ATTACH_ID(mux, sel, 1U) | (selector << 24U))
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273 #define GET_ID_ITEM(connection) ((connection)&0xFFFU)
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274 #define GET_ID_NEXT_ITEM(connection) ((connection) >> 12U)
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275 #define GET_ID_ITEM_MUX(connection) ((connection)&0xFFU)
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276 #define GET_ID_ITEM_SEL(connection) ((((connection)&0xF00U) >> 8U) - 1U)
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277 #define GET_ID_SELECTOR(connection) ((connection)&0xF000000U)
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279 #define CM_MAINCLKSELA 0
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280 #define CM_MAINCLKSELB 1
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281 #define CM_CLKOUTCLKSELA 2
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282 #define CM_CLKOUTCLKSELB 3
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283 #define CM_SYSPLLCLKSEL 4
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284 #define CM_USBPLLCLKSEL 5
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285 #define CM_AUDPLLCLKSEL 6
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286 #define CM_SCTPLLCLKSEL 7
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287 #define CM_ADCASYNCCLKSEL 9
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288 #define CM_USBCLKSEL 10
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289 #define CM_USB1CLKSEL 11
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290 #define CM_FXCOMCLKSEL0 12
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291 #define CM_FXCOMCLKSEL1 13
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292 #define CM_FXCOMCLKSEL2 14
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293 #define CM_FXCOMCLKSEL3 15
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294 #define CM_FXCOMCLKSEL4 16
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295 #define CM_FXCOMCLKSEL5 17
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296 #define CM_FXCOMCLKSEL6 18
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297 #define CM_FXCOMCLKSEL7 19
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298 #define CM_FXCOMCLKSEL8 20
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299 #define CM_FXCOMCLKSEL9 21
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300 #define CM_FXCOMCLKSEL10 22
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301 #define CM_FXCOMCLKSEL11 23
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302 #define CM_FXI2S0MCLKCLKSEL 24
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303 #define CM_FXI2S1MCLKCLKSEL 25
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304 #define CM_FRGCLKSEL 26
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306 #define CM_ASYNCAPB 28
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308 typedef enum _clock_attach_id
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311 kFRO12M_to_MAIN_CLK = MUX_A(CM_MAINCLKSELA, 0) | MUX_B(CM_MAINCLKSELB, 0, 0),
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312 kEXT_CLK_to_MAIN_CLK = MUX_A(CM_MAINCLKSELA, 1) | MUX_B(CM_MAINCLKSELB, 0, 0),
\r
313 kWDT_OSC_to_MAIN_CLK = MUX_A(CM_MAINCLKSELA, 2) | MUX_B(CM_MAINCLKSELB, 0, 0),
\r
314 kFRO_HF_to_MAIN_CLK = MUX_A(CM_MAINCLKSELA, 3) | MUX_B(CM_MAINCLKSELB, 0, 0),
\r
315 kSYS_PLL_to_MAIN_CLK = MUX_A(CM_MAINCLKSELA, 0) | MUX_B(CM_MAINCLKSELB, 2, 0),
\r
316 kOSC32K_to_MAIN_CLK = MUX_A(CM_MAINCLKSELA, 0) | MUX_B(CM_MAINCLKSELB, 3, 0),
\r
318 kFRO12M_to_SYS_PLL = MUX_A(CM_SYSPLLCLKSEL, 0),
\r
319 kEXT_CLK_to_SYS_PLL = MUX_A(CM_SYSPLLCLKSEL, 1),
\r
320 kWDT_OSC_to_SYS_PLL = MUX_A(CM_SYSPLLCLKSEL, 2),
\r
321 kOSC32K_to_SYS_PLL = MUX_A(CM_SYSPLLCLKSEL, 3),
\r
322 kNONE_to_SYS_PLL = MUX_A(CM_SYSPLLCLKSEL, 7),
\r
324 kMAIN_CLK_to_ASYNC_APB = MUX_A(CM_ASYNCAPB, 0),
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325 kFRO12M_to_ASYNC_APB = MUX_A(CM_ASYNCAPB, 1),
\r
327 kMAIN_CLK_to_ADC_CLK = MUX_A(CM_ADCASYNCCLKSEL, 0),
\r
328 kSYS_PLL_to_ADC_CLK = MUX_A(CM_ADCASYNCCLKSEL, 1),
\r
329 kFRO_HF_to_ADC_CLK = MUX_A(CM_ADCASYNCCLKSEL, 2),
\r
330 kNONE_to_ADC_CLK = MUX_A(CM_ADCASYNCCLKSEL, 7),
\r
332 kFRO12M_to_FLEXCOMM0 = MUX_A(CM_FXCOMCLKSEL0, 0),
\r
333 kFRO_HF_to_FLEXCOMM0 = MUX_A(CM_FXCOMCLKSEL0, 1),
\r
334 kSYS_PLL_to_FLEXCOMM0 = MUX_A(CM_FXCOMCLKSEL0, 2),
\r
335 kMCLK_to_FLEXCOMM0 = MUX_A(CM_FXCOMCLKSEL0, 3),
\r
336 kFRG_to_FLEXCOMM0 = MUX_A(CM_FXCOMCLKSEL0, 4),
\r
337 kNONE_to_FLEXCOMM0 = MUX_A(CM_FXCOMCLKSEL0, 7),
\r
339 kFRO12M_to_FLEXCOMM1 = MUX_A(CM_FXCOMCLKSEL1, 0),
\r
340 kFRO_HF_to_FLEXCOMM1 = MUX_A(CM_FXCOMCLKSEL1, 1),
\r
341 kSYS_PLL_to_FLEXCOMM1 = MUX_A(CM_FXCOMCLKSEL1, 2),
\r
342 kMCLK_to_FLEXCOMM1 = MUX_A(CM_FXCOMCLKSEL1, 3),
\r
343 kFRG_to_FLEXCOMM1 = MUX_A(CM_FXCOMCLKSEL1, 4),
\r
344 kNONE_to_FLEXCOMM1 = MUX_A(CM_FXCOMCLKSEL1, 7),
\r
346 kFRO12M_to_FLEXCOMM2 = MUX_A(CM_FXCOMCLKSEL2, 0),
\r
347 kFRO_HF_to_FLEXCOMM2 = MUX_A(CM_FXCOMCLKSEL2, 1),
\r
348 kSYS_PLL_to_FLEXCOMM2 = MUX_A(CM_FXCOMCLKSEL2, 2),
\r
349 kMCLK_to_FLEXCOMM2 = MUX_A(CM_FXCOMCLKSEL2, 3),
\r
350 kFRG_to_FLEXCOMM2 = MUX_A(CM_FXCOMCLKSEL2, 4),
\r
351 kNONE_to_FLEXCOMM2 = MUX_A(CM_FXCOMCLKSEL2, 7),
\r
353 kFRO12M_to_FLEXCOMM3 = MUX_A(CM_FXCOMCLKSEL3, 0),
\r
354 kFRO_HF_to_FLEXCOMM3 = MUX_A(CM_FXCOMCLKSEL3, 1),
\r
355 kSYS_PLL_to_FLEXCOMM3 = MUX_A(CM_FXCOMCLKSEL3, 2),
\r
356 kMCLK_to_FLEXCOMM3 = MUX_A(CM_FXCOMCLKSEL3, 3),
\r
357 kFRG_to_FLEXCOMM3 = MUX_A(CM_FXCOMCLKSEL3, 4),
\r
358 kNONE_to_FLEXCOMM3 = MUX_A(CM_FXCOMCLKSEL3, 7),
\r
360 kFRO12M_to_FLEXCOMM4 = MUX_A(CM_FXCOMCLKSEL4, 0),
\r
361 kFRO_HF_to_FLEXCOMM4 = MUX_A(CM_FXCOMCLKSEL4, 1),
\r
362 kSYS_PLL_to_FLEXCOMM4 = MUX_A(CM_FXCOMCLKSEL4, 2),
\r
363 kMCLK_to_FLEXCOMM4 = MUX_A(CM_FXCOMCLKSEL4, 3),
\r
364 kFRG_to_FLEXCOMM4 = MUX_A(CM_FXCOMCLKSEL4, 4),
\r
365 kNONE_to_FLEXCOMM4 = MUX_A(CM_FXCOMCLKSEL4, 7),
\r
367 kFRO12M_to_FLEXCOMM5 = MUX_A(CM_FXCOMCLKSEL5, 0),
\r
368 kFRO_HF_to_FLEXCOMM5 = MUX_A(CM_FXCOMCLKSEL5, 1),
\r
369 kSYS_PLL_to_FLEXCOMM5 = MUX_A(CM_FXCOMCLKSEL5, 2),
\r
370 kMCLK_to_FLEXCOMM5 = MUX_A(CM_FXCOMCLKSEL5, 3),
\r
371 kFRG_to_FLEXCOMM5 = MUX_A(CM_FXCOMCLKSEL5, 4),
\r
372 kNONE_to_FLEXCOMM5 = MUX_A(CM_FXCOMCLKSEL5, 7),
\r
374 kFRO12M_to_FLEXCOMM6 = MUX_A(CM_FXCOMCLKSEL6, 0),
\r
375 kFRO_HF_to_FLEXCOMM6 = MUX_A(CM_FXCOMCLKSEL6, 1),
\r
376 kSYS_PLL_to_FLEXCOMM6 = MUX_A(CM_FXCOMCLKSEL6, 2),
\r
377 kMCLK_to_FLEXCOMM6 = MUX_A(CM_FXCOMCLKSEL6, 3),
\r
378 kFRG_to_FLEXCOMM6 = MUX_A(CM_FXCOMCLKSEL6, 4),
\r
379 kNONE_to_FLEXCOMM6 = MUX_A(CM_FXCOMCLKSEL6, 7),
\r
381 kFRO12M_to_FLEXCOMM7 = MUX_A(CM_FXCOMCLKSEL7, 0),
\r
382 kFRO_HF_to_FLEXCOMM7 = MUX_A(CM_FXCOMCLKSEL7, 1),
\r
383 kSYS_PLL_to_FLEXCOMM7 = MUX_A(CM_FXCOMCLKSEL7, 2),
\r
384 kMCLK_to_FLEXCOMM7 = MUX_A(CM_FXCOMCLKSEL7, 3),
\r
385 kFRG_to_FLEXCOMM7 = MUX_A(CM_FXCOMCLKSEL7, 4),
\r
386 kNONE_to_FLEXCOMM7 = MUX_A(CM_FXCOMCLKSEL7, 7),
\r
388 kMAIN_CLK_to_FRG = MUX_A(CM_FRGCLKSEL, 0),
\r
389 kSYS_PLL_to_FRG = MUX_A(CM_FRGCLKSEL, 1),
\r
390 kFRO12M_to_FRG = MUX_A(CM_FRGCLKSEL, 2),
\r
391 kFRO_HF_to_FRG = MUX_A(CM_FRGCLKSEL, 3),
\r
392 kNONE_to_FRG = MUX_A(CM_FRGCLKSEL, 7),
\r
394 kFRO_HF_to_MCLK = MUX_A(CM_FXI2S0MCLKCLKSEL, 0),
\r
395 kSYS_PLL_to_MCLK = MUX_A(CM_FXI2S0MCLKCLKSEL, 1),
\r
396 kMAIN_CLK_to_MCLK = MUX_A(CM_FXI2S0MCLKCLKSEL, 2),
\r
397 kNONE_to_MCLK = MUX_A(CM_FXI2S0MCLKCLKSEL, 7),
\r
399 kFRO_HF_to_USB_CLK = MUX_A(CM_USBCLKSEL, 0),
\r
400 kSYS_PLL_to_USB_CLK = MUX_A(CM_USBCLKSEL, 1),
\r
401 kMAIN_CLK_to_USB_CLK = MUX_A(CM_USBCLKSEL, 2),
\r
402 kNONE_to_USB_CLK = MUX_A(CM_USBCLKSEL, 7),
\r
404 kMAIN_CLK_to_CLKOUT = MUX_A(CM_CLKOUTCLKSELA, 0),
\r
405 kEXT_CLK_to_CLKOUT = MUX_A(CM_CLKOUTCLKSELA, 1),
\r
406 kWDT_OSC_to_CLKOUT = MUX_A(CM_CLKOUTCLKSELA, 2),
\r
407 kFRO_HF_to_CLKOUT = MUX_A(CM_CLKOUTCLKSELA, 3),
\r
408 kSYS_PLL_to_CLKOUT = MUX_A(CM_CLKOUTCLKSELA, 4),
\r
409 kFRO12M_to_CLKOUT = MUX_A(CM_CLKOUTCLKSELA, 5),
\r
410 kOSC32K_to_CLKOUT = MUX_A(CM_CLKOUTCLKSELA, 6),
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411 kNONE_to_CLKOUT = MUX_A(CM_CLKOUTCLKSELA, 7),
\r
412 kNONE_to_NONE = (int)0x80000000U,
\r
413 } clock_attach_id_t;
\r
415 /* Clock dividers */
\r
416 typedef enum _clock_div_name
\r
418 kCLOCK_DivSystickClk = 0,
\r
419 kCLOCK_DivTraceClk = 1,
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420 kCLOCK_DivAhbClk = 32,
\r
421 kCLOCK_DivClkOut = 33,
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422 kCLOCK_DivAdcAsyncClk = 37,
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423 kCLOCK_DivUsbClk = 38,
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424 kCLOCK_DivFrg = 40,
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425 kCLOCK_DivFxI2s0MClk = 43
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426 } clock_div_name_t;
\r
428 /*******************************************************************************
\r
430 ******************************************************************************/
\r
432 #if defined(__cplusplus)
\r
434 #endif /* __cplusplus */
\r
436 static inline void CLOCK_EnableClock(clock_ip_name_t clk)
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438 uint32_t index = CLK_GATE_ABSTRACT_REG_OFFSET(clk);
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441 SYSCON->AHBCLKCTRLSET[index] = (1U << CLK_GATE_ABSTRACT_BITS_SHIFT(clk));
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445 ASYNC_SYSCON->ASYNCAPBCLKCTRLSET = (1U << CLK_GATE_ABSTRACT_BITS_SHIFT(clk));
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449 static inline void CLOCK_DisableClock(clock_ip_name_t clk)
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451 uint32_t index = CLK_GATE_ABSTRACT_REG_OFFSET(clk);
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454 SYSCON->AHBCLKCTRLCLR[index] = (1U << CLK_GATE_ABSTRACT_BITS_SHIFT(clk));
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458 ASYNC_SYSCON->ASYNCAPBCLKCTRLCLR = (1U << CLK_GATE_ABSTRACT_BITS_SHIFT(clk));
\r
462 * @brief FLASH Access time definitions
\r
464 typedef enum _clock_flashtim
\r
466 kCLOCK_Flash1Cycle = 0, /*!< Flash accesses use 1 CPU clock */
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467 kCLOCK_Flash2Cycle, /*!< Flash accesses use 2 CPU clocks */
\r
468 kCLOCK_Flash3Cycle, /*!< Flash accesses use 3 CPU clocks */
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469 kCLOCK_Flash4Cycle, /*!< Flash accesses use 4 CPU clocks */
\r
470 kCLOCK_Flash5Cycle, /*!< Flash accesses use 5 CPU clocks */
\r
471 kCLOCK_Flash6Cycle, /*!< Flash accesses use 6 CPU clocks */
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472 } clock_flashtim_t;
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475 * @brief Set FLASH memory access time in clocks
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476 * @param clks : Clock cycles for FLASH access
\r
479 static inline void CLOCK_SetFLASHAccessCycles(clock_flashtim_t clks)
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483 tmp = SYSCON->FLASHCFG & ~(SYSCON_FLASHCFG_FLASHTIM_MASK);
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485 /* Don't alter lower bits */
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486 SYSCON->FLASHCFG = tmp | ((uint32_t)clks << SYSCON_FLASHCFG_FLASHTIM_SHIFT);
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490 * @brief Initialize the Core clock to given frequency (12, 48 or 96 MHz).
\r
491 * Turns on FRO and uses default CCO, if freq is 12000000, then high speed output is off, else high speed output is
\r
493 * @param iFreq : Desired frequency (must be one of CLK_FRO_12MHZ or CLK_FRO_48MHZ or CLK_FRO_96MHZ)
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494 * @return returns success or fail status.
\r
496 status_t CLOCK_SetupFROClocking(uint32_t iFreq);
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498 * @brief Configure the clock selection muxes.
\r
499 * @param connection : Clock to be configured.
\r
502 void CLOCK_AttachClk(clock_attach_id_t connection);
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504 * @brief Get the actual clock attach id.
\r
505 * This fuction uses the offset in input attach id, then it reads the actual source value in
\r
506 * the register and combine the offset to obtain an actual attach id.
\r
507 * @param attachId : Clock attach id to get.
\r
508 * @return Clock source value.
\r
510 clock_attach_id_t CLOCK_GetClockAttachId(clock_attach_id_t attachId);
\r
512 * @brief Setup peripheral clock dividers.
\r
513 * @param div_name : Clock divider name
\r
514 * @param divided_by_value: Value to be divided
\r
515 * @param reset : Whether to reset the divider counter.
\r
518 void CLOCK_SetClkDiv(clock_div_name_t div_name, uint32_t divided_by_value, bool reset);
\r
520 * @brief Set the flash wait states for the input freuqency.
\r
521 * @param iFreq : Input frequency
\r
524 void CLOCK_SetFLASHAccessCyclesForFreq(uint32_t iFreq);
\r
525 /*! @brief Return Frequency of selected clock
\r
526 * @return Frequency of selected clock
\r
528 uint32_t CLOCK_GetFreq(clock_name_t clockName);
\r
530 /*! @brief Return Input frequency for the Fractional baud rate generator
\r
531 * @return Input Frequency for FRG
\r
533 uint32_t CLOCK_GetFRGInputClock(void);
\r
535 /*! @brief Set output of the Fractional baud rate generator
\r
536 * @param freq : Desired output frequency
\r
537 * @return Error Code 0 - fail 1 - success
\r
539 uint32_t CLOCK_SetFRGClock(uint32_t freq);
\r
541 /*! @brief Return Frequency of FRO 12MHz
\r
542 * @return Frequency of FRO 12MHz
\r
544 uint32_t CLOCK_GetFro12MFreq(void);
\r
545 /*! @brief Return Frequency of External Clock
\r
546 * @return Frequency of External Clock. If no external clock is used returns 0.
\r
548 uint32_t CLOCK_GetExtClkFreq(void);
\r
549 /*! @brief Return Frequency of Watchdog Oscillator
\r
550 * @return Frequency of Watchdog Oscillator
\r
552 uint32_t CLOCK_GetWdtOscFreq(void);
\r
553 /*! @brief Return Frequency of High-Freq output of FRO
\r
554 * @return Frequency of High-Freq output of FRO
\r
556 uint32_t CLOCK_GetFroHfFreq(void);
\r
557 /*! @brief Return Frequency of PLL
\r
558 * @return Frequency of PLL
\r
560 uint32_t CLOCK_GetPllOutFreq(void);
\r
561 /*! @brief Return Frequency of 32kHz osc
\r
562 * @return Frequency of 32kHz osc
\r
564 uint32_t CLOCK_GetOsc32KFreq(void);
\r
565 /*! @brief Return Frequency of Core System
\r
566 * @return Frequency of Core System
\r
568 uint32_t CLOCK_GetCoreSysClkFreq(void);
\r
569 /*! @brief Return Frequency of I2S MCLK Clock
\r
570 * @return Frequency of I2S MCLK Clock
\r
572 uint32_t CLOCK_GetI2SMClkFreq(void);
\r
573 /*! @brief Return Frequency of Flexcomm functional Clock
\r
574 * @return Frequency of Flexcomm functional Clock
\r
576 uint32_t CLOCK_GetFlexCommClkFreq(uint32_t id);
\r
577 /*! @brief Return Frequency of Adc Clock
\r
578 * @return Frequency of Adc Clock.
\r
580 uint32_t CLOCK_GetAdcClkFreq(void);
\r
581 /*! @brief Return Asynchronous APB Clock source
\r
582 * @return Asynchronous APB CLock source
\r
584 __STATIC_INLINE async_clock_src_t CLOCK_GetAsyncApbClkSrc(void)
\r
586 return (async_clock_src_t)(ASYNC_SYSCON->ASYNCAPBCLKSELA & 0x3);
\r
588 /*! @brief Return Frequency of Asynchronous APB Clock
\r
589 * @return Frequency of Asynchronous APB Clock Clock
\r
591 uint32_t CLOCK_GetAsyncApbClkFreq(void);
\r
592 /*! @brief Return System PLL input clock rate
\r
593 * @return System PLL input clock rate
\r
595 uint32_t CLOCK_GetSystemPLLInClockRate(void);
\r
597 /*! @brief Return System PLL output clock rate
\r
598 * @param recompute : Forces a PLL rate recomputation if true
\r
599 * @return System PLL output clock rate
\r
600 * @note The PLL rate is cached in the driver in a variable as
\r
601 * the rate computation function can take some time to perform. It
\r
602 * is recommended to use 'false' with the 'recompute' parameter.
\r
604 uint32_t CLOCK_GetSystemPLLOutClockRate(bool recompute);
\r
606 /*! @brief Enables and disables PLL bypass mode
\r
607 * @brief bypass : true to bypass PLL (PLL output = PLL input, false to disable bypass
\r
608 * @return System PLL output clock rate
\r
610 __STATIC_INLINE void CLOCK_SetBypassPLL(bool bypass)
\r
614 SYSCON->SYSPLLCTRL |= (1UL << SYSCON_SYSPLLCTRL_BYPASS_SHIFT);
\r
618 SYSCON->SYSPLLCTRL &= ~(1UL << SYSCON_SYSPLLCTRL_BYPASS_SHIFT);
\r
622 /*! @brief Check if PLL is locked or not
\r
623 * @return true if the PLL is locked, false if not locked
\r
625 __STATIC_INLINE bool CLOCK_IsSystemPLLLocked(void)
\r
627 return (bool)((SYSCON->SYSPLLSTAT & SYSCON_SYSPLLSTAT_LOCK_MASK) != 0);
\r
630 /*! @brief Store the current PLL rate
\r
631 * @param rate: Current rate of the PLL
\r
634 void CLOCK_SetStoredPLLClockRate(uint32_t rate);
\r
636 /*! @brief PLL configuration structure flags for 'flags' field
\r
637 * These flags control how the PLL configuration function sets up the PLL setup structure.<br>
\r
639 * When the PLL_CONFIGFLAG_USEINRATE flag is selected, the 'InputRate' field in the
\r
640 * configuration structure must be assigned with the expected PLL frequency. If the
\r
641 * PLL_CONFIGFLAG_USEINRATE is not used, 'InputRate' is ignored in the configuration
\r
642 * function and the driver will determine the PLL rate from the currently selected
\r
643 * PLL source. This flag might be used to configure the PLL input clock more accurately
\r
644 * when using the WDT oscillator or a more dyanmic CLKIN source.<br>
\r
646 * When the PLL_CONFIGFLAG_FORCENOFRACT flag is selected, the PLL hardware for the
\r
647 * automatic bandwidth selection, Spread Spectrum (SS) support, and fractional M-divider
\r
648 * are not used.<br>
\r
650 #define PLL_CONFIGFLAG_USEINRATE (1 << 0) /*!< Flag to use InputRate in PLL configuration structure for setup */
\r
651 #define PLL_CONFIGFLAG_FORCENOFRACT \
\r
653 << 2) /*!< Force non-fractional output mode, PLL output will not use the fractional, automatic bandwidth, or SS \ \
\r
657 \ \ \ \ \ \ \ \ \ \
\r
658 \ \ \ \ \ \ \ \ \ \ \ \
\r
661 /*! @brief PLL Spread Spectrum (SS) Programmable modulation frequency
\r
662 * See (MF) field in the SYSPLLSSCTRL1 register in the UM.
\r
664 typedef enum _ss_progmodfm
\r
666 kSS_MF_512 = (0 << 20), /*!< Nss = 512 (fm ? 3.9 - 7.8 kHz) */
\r
667 kSS_MF_384 = (1 << 20), /*!< Nss ?= 384 (fm ? 5.2 - 10.4 kHz) */
\r
668 kSS_MF_256 = (2 << 20), /*!< Nss = 256 (fm ? 7.8 - 15.6 kHz) */
\r
669 kSS_MF_128 = (3 << 20), /*!< Nss = 128 (fm ? 15.6 - 31.3 kHz) */
\r
670 kSS_MF_64 = (4 << 20), /*!< Nss = 64 (fm ? 32.3 - 64.5 kHz) */
\r
671 kSS_MF_32 = (5 << 20), /*!< Nss = 32 (fm ? 62.5- 125 kHz) */
\r
672 kSS_MF_24 = (6 << 20), /*!< Nss ?= 24 (fm ? 83.3- 166.6 kHz) */
\r
673 kSS_MF_16 = (7 << 20) /*!< Nss = 16 (fm ? 125- 250 kHz) */
\r
676 /*! @brief PLL Spread Spectrum (SS) Programmable frequency modulation depth
\r
677 * See (MR) field in the SYSPLLSSCTRL1 register in the UM.
\r
679 typedef enum _ss_progmoddp
\r
681 kSS_MR_K0 = (0 << 23), /*!< k = 0 (no spread spectrum) */
\r
682 kSS_MR_K1 = (1 << 23), /*!< k = 1 */
\r
683 kSS_MR_K1_5 = (2 << 23), /*!< k = 1.5 */
\r
684 kSS_MR_K2 = (3 << 23), /*!< k = 2 */
\r
685 kSS_MR_K3 = (4 << 23), /*!< k = 3 */
\r
686 kSS_MR_K4 = (5 << 23), /*!< k = 4 */
\r
687 kSS_MR_K6 = (6 << 23), /*!< k = 6 */
\r
688 kSS_MR_K8 = (7 << 23) /*!< k = 8 */
\r
691 /*! @brief PLL Spread Spectrum (SS) Modulation waveform control
\r
692 * See (MC) field in the SYSPLLSSCTRL1 register in the UM.<br>
\r
693 * Compensation for low pass filtering of the PLL to get a triangular
\r
694 * modulation at the output of the PLL, giving a flat frequency spectrum.
\r
696 typedef enum _ss_modwvctrl
\r
698 kSS_MC_NOC = (0 << 26), /*!< no compensation */
\r
699 kSS_MC_RECC = (2 << 26), /*!< recommended setting */
\r
700 kSS_MC_MAXC = (3 << 26), /*!< max. compensation */
\r
703 /*! @brief PLL configuration structure
\r
705 * This structure can be used to configure the settings for a PLL
\r
706 * setup structure. Fill in the desired configuration for the PLL
\r
707 * and call the PLL setup function to fill in a PLL setup structure.
\r
709 typedef struct _pll_config
\r
711 uint32_t desiredRate; /*!< Desired PLL rate in Hz */
\r
712 uint32_t inputRate; /*!< PLL input clock in Hz, only used if PLL_CONFIGFLAG_USEINRATE flag is set */
\r
713 uint32_t flags; /*!< PLL configuration flags, Or'ed value of PLL_CONFIGFLAG_* definitions */
\r
714 ss_progmodfm_t ss_mf; /*!< SS Programmable modulation frequency, only applicable when not using
\r
715 PLL_CONFIGFLAG_FORCENOFRACT flag */
\r
716 ss_progmoddp_t ss_mr; /*!< SS Programmable frequency modulation depth, only applicable when not using
\r
717 PLL_CONFIGFLAG_FORCENOFRACT flag */
\r
719 ss_mc; /*!< SS Modulation waveform control, only applicable when not using PLL_CONFIGFLAG_FORCENOFRACT flag */
\r
720 bool mfDither; /*!< false for fixed modulation frequency or true for dithering, only applicable when not using
\r
721 PLL_CONFIGFLAG_FORCENOFRACT flag */
\r
725 /*! @brief PLL setup structure flags for 'flags' field
\r
726 * These flags control how the PLL setup function sets up the PLL
\r
728 #define PLL_SETUPFLAG_POWERUP (1 << 0) /*!< Setup will power on the PLL after setup */
\r
729 #define PLL_SETUPFLAG_WAITLOCK (1 << 1) /*!< Setup will wait for PLL lock, implies the PLL will be pwoered on */
\r
730 #define PLL_SETUPFLAG_ADGVOLT (1 << 2) /*!< Optimize system voltage for the new PLL rate */
\r
731 #define PLL_SETUPFLAG_USEFEEDBACKDIV2 (1 << 3) /*!< Use feedback divider by 2 in divider path */
\r
733 /*! @brief PLL setup structure
\r
734 * This structure can be used to pre-build a PLL setup configuration
\r
735 * at run-time and quickly set the PLL to the configuration. It can be
\r
736 * populated with the PLL setup function. If powering up or waiting
\r
737 * for PLL lock, the PLL input clock source should be configured prior
\r
740 typedef struct _pll_setup
\r
742 uint32_t syspllctrl; /*!< PLL control register SYSPLLCTRL */
\r
743 uint32_t syspllndec; /*!< PLL NDEC register SYSPLLNDEC */
\r
744 uint32_t syspllpdec; /*!< PLL PDEC register SYSPLLPDEC */
\r
745 uint32_t syspllssctrl[2]; /*!< PLL SSCTL registers SYSPLLSSCTRL */
\r
746 uint32_t pllRate; /*!< Acutal PLL rate */
\r
747 uint32_t flags; /*!< PLL setup flags, Or'ed value of PLL_SETUPFLAG_* definitions */
\r
750 /*! @brief PLL status definitions
\r
752 typedef enum _pll_error
\r
754 kStatus_PLL_Success = MAKE_STATUS(kStatusGroup_Generic, 0), /*!< PLL operation was successful */
\r
755 kStatus_PLL_OutputTooLow = MAKE_STATUS(kStatusGroup_Generic, 1), /*!< PLL output rate request was too low */
\r
756 kStatus_PLL_OutputTooHigh = MAKE_STATUS(kStatusGroup_Generic, 2), /*!< PLL output rate request was too high */
\r
757 kStatus_PLL_InputTooLow = MAKE_STATUS(kStatusGroup_Generic, 3), /*!< PLL input rate is too low */
\r
758 kStatus_PLL_InputTooHigh = MAKE_STATUS(kStatusGroup_Generic, 4), /*!< PLL input rate is too high */
\r
759 kStatus_PLL_OutsideIntLimit = MAKE_STATUS(kStatusGroup_Generic, 5) /*!< Requested output rate isn't possible */
\r
762 /*! @brief USB clock source definition. */
\r
763 typedef enum _clock_usb_src
\r
765 kCLOCK_UsbSrcFro = (uint32_t)kCLOCK_FroHf, /*!< Use FRO 96 or 48 MHz. */
\r
766 kCLOCK_UsbSrcSystemPll = (uint32_t)kCLOCK_PllOut, /*!< Use System PLL output. */
\r
767 kCLOCK_UsbSrcMainClock = (uint32_t)kCLOCK_CoreSysClk, /*!< Use Main clock. */
\r
768 kCLOCK_UsbSrcNone = SYSCON_USBCLKSEL_SEL(
\r
769 7) /*!< Use None, this may be selected in order to reduce power when no output is needed. */
\r
772 /*! @brief Return System PLL output clock rate from setup structure
\r
773 * @param pSetup : Pointer to a PLL setup structure
\r
774 * @return System PLL output clock rate calculated from the setup structure
\r
776 uint32_t CLOCK_GetSystemPLLOutFromSetup(pll_setup_t *pSetup);
\r
778 /*! @brief Set PLL output based on the passed PLL setup data
\r
779 * @param pControl : Pointer to populated PLL control structure to generate setup with
\r
780 * @param pSetup : Pointer to PLL setup structure to be filled
\r
781 * @return PLL_ERROR_SUCCESS on success, or PLL setup error code
\r
782 * @note Actual frequency for setup may vary from the desired frequency based on the
\r
783 * accuracy of input clocks, rounding, non-fractional PLL mode, etc.
\r
785 pll_error_t CLOCK_SetupPLLData(pll_config_t *pControl, pll_setup_t *pSetup);
\r
787 /*! @brief Set PLL output from PLL setup structure (precise frequency)
\r
788 * @param pSetup : Pointer to populated PLL setup structure
\r
789 * @param flagcfg : Flag configuration for PLL config structure
\r
790 * @return PLL_ERROR_SUCCESS on success, or PLL setup error code
\r
791 * @note This function will power off the PLL, setup the PLL with the
\r
792 * new setup data, and then optionally powerup the PLL, wait for PLL lock,
\r
793 * and adjust system voltages to the new PLL rate. The function will not
\r
794 * alter any source clocks (ie, main systen clock) that may use the PLL,
\r
795 * so these should be setup prior to and after exiting the function.
\r
797 pll_error_t CLOCK_SetupSystemPLLPrec(pll_setup_t *pSetup, uint32_t flagcfg);
\r
800 * @brief Set PLL output from PLL setup structure (precise frequency)
\r
801 * @param pSetup : Pointer to populated PLL setup structure
\r
802 * @return kStatus_PLL_Success on success, or PLL setup error code
\r
803 * @note This function will power off the PLL, setup the PLL with the
\r
804 * new setup data, and then optionally powerup the PLL, wait for PLL lock,
\r
805 * and adjust system voltages to the new PLL rate. The function will not
\r
806 * alter any source clocks (ie, main systen clock) that may use the PLL,
\r
807 * so these should be setup prior to and after exiting the function.
\r
809 pll_error_t CLOCK_SetPLLFreq(const pll_setup_t *pSetup);
\r
811 /*! @brief Set PLL output based on the multiplier and input frequency
\r
812 * @param multiply_by : multiplier
\r
813 * @param input_freq : Clock input frequency of the PLL
\r
815 * @note Unlike the Chip_Clock_SetupSystemPLLPrec() function, this
\r
816 * function does not disable or enable PLL power, wait for PLL lock,
\r
817 * or adjust system voltages. These must be done in the application.
\r
818 * The function will not alter any source clocks (ie, main systen clock)
\r
819 * that may use the PLL, so these should be setup prior to and after
\r
820 * exiting the function.
\r
822 void CLOCK_SetupSystemPLLMult(uint32_t multiply_by, uint32_t input_freq);
\r
824 /*! @brief Disable USB FS clock.
\r
826 * Disable USB FS clock.
\r
828 static inline void CLOCK_DisableUsbfs0Clock(void)
\r
830 CLOCK_DisableClock(kCLOCK_Usbd0);
\r
832 bool CLOCK_EnableUsbfs0Clock(clock_usb_src_t src, uint32_t freq);
\r
835 * @brief Use DWT to delay at least for some time.
\r
836 * Please note that, this API will calculate the microsecond period with the maximum devices
\r
837 * supported CPU frequency, so this API will only delay for at least the given microseconds, if precise
\r
838 * delay count was needed, please implement a new timer count to achieve this function.
\r
840 * @param delay_us Delay time in unit of microsecond.
\r
842 void SDK_DelayAtLeastUs(uint32_t delay_us);
\r
844 #if defined(__cplusplus)
\r
846 #endif /* __cplusplus */
\r
850 #endif /* _FSL_CLOCK_H_ */
\r