1 files changed, 1561 insertions, 0 deletions

diff --git a/lib/chibios-contrib/ext/mcux-sdk/devices/MK63F12/drivers/fsl_clock.h b/lib/chibios-contrib/ext/mcux-sdk/devices/MK63F12/drivers/fsl_clock.h
new file mode 100644
index 000000000..ad0a7d467
--- /dev/null
+++ b/lib/chibios-contrib/ext/mcux-sdk/devices/MK63F12/drivers/fsl_clock.h
@@ -0,0 +1,1561 @@
+/*
+ * Copyright (c) 2015, Freescale Semiconductor, Inc.
+ * Copyright 2016 - 2019, NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _FSL_CLOCK_H_
+#define _FSL_CLOCK_H_
+
+#include "fsl_common.h"
+
+/*! @addtogroup clock */
+/*! @{ */
+
+/*! @file */
+
+/*******************************************************************************
+ * Configurations
+ ******************************************************************************/
+
+/*! @brief Configures whether to check a parameter in a function.
+ *
+ * Some MCG settings must be changed with conditions, for example:
+ *  1. MCGIRCLK settings, such as the source, divider, and the trim value should not change when
+ *     MCGIRCLK is used as a system clock source.
+ *  2. MCG_C7[OSCSEL] should not be changed  when the external reference clock is used
+ *     as a system clock source. For example, in FBE/BLPE/PBE modes.
+ *  3. The users should only switch between the supported clock modes.
+ *
+ * MCG functions check the parameter and MCG status before setting, if not allowed
+ * to change, the functions return error. The parameter checking increases code size,
+ * if code size is a critical requirement, change #MCG_CONFIG_CHECK_PARAM to 0 to
+ * disable parameter checking.
+ */
+#ifndef MCG_CONFIG_CHECK_PARAM
+#define MCG_CONFIG_CHECK_PARAM 0U
+#endif
+
+/*! @brief Configure whether driver controls clock
+ *
+ * When set to 0, peripheral drivers will enable clock in initialize function
+ * and disable clock in de-initialize function. When set to 1, peripheral
+ * driver will not control the clock, application could control the clock out of
+ * the driver.
+ *
+ * @note All drivers share this feature switcher. If it is set to 1, application
+ * should handle clock enable and disable for all drivers.
+ */
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL))
+#define FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL 0
+#endif
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/*! @name Driver version */
+/*@{*/
+/*! @brief CLOCK driver version 2.5.1. */
+#define FSL_CLOCK_DRIVER_VERSION (MAKE_VERSION(2, 5, 1))
+/*@}*/
+
+/*! @brief External XTAL0 (OSC0) clock frequency.
+ *
+ * The XTAL0/EXTAL0 (OSC0) clock frequency in Hz. When the clock is set up, use the
+ * function CLOCK_SetXtal0Freq to set the value in the clock driver. For example,
+ * if XTAL0 is 8 MHz:
+ * @code
+ * Set up the OSC0
+ * CLOCK_InitOsc0(...);
+ * Set the XTAL0 value to the clock driver.
+ * CLOCK_SetXtal0Freq(80000000);
+ * @endcode
+ *
+ * This is important for the multicore platforms where only one core needs to set up the
+ * OSC0 using the CLOCK_InitOsc0. All other cores need to call the CLOCK_SetXtal0Freq
+ * to get a valid clock frequency.
+ */
+extern volatile uint32_t g_xtal0Freq;
+
+/*! @brief External XTAL32/EXTAL32/RTC_CLKIN clock frequency.
+ *
+ * The XTAL32/EXTAL32/RTC_CLKIN clock frequency in Hz. When the clock is set up, use the
+ * function CLOCK_SetXtal32Freq to set the value in the clock driver.
+ *
+ * This is important for the multicore platforms where only one core needs to set up
+ * the clock. All other cores need to call the CLOCK_SetXtal32Freq
+ * to get a valid clock frequency.
+ */
+extern volatile uint32_t g_xtal32Freq;
+
+/*! @brief IRC48M clock frequency in Hz. */
+#define MCG_INTERNAL_IRC_48M 48000000U
+
+#if (defined(OSC) && !(defined(OSC0)))
+#define OSC0 OSC
+#endif
+
+/* Definition for delay API in clock driver, users can redefine it to the real application. */
+#ifndef SDK_DEVICE_MAXIMUM_CPU_CLOCK_FREQUENCY
+#define SDK_DEVICE_MAXIMUM_CPU_CLOCK_FREQUENCY (120000000UL)
+#endif
+
+/*! @brief Clock ip name array for DMAMUX. */
+#define DMAMUX_CLOCKS  \
+    {                  \
+        kCLOCK_Dmamux0 \
+    }
+
+/*! @brief Clock ip name array for RTC. */
+#define RTC_CLOCKS  \
+    {               \
+        kCLOCK_Rtc0 \
+    }
+
+/*! @brief Clock ip name array for ENET. */
+#define ENET_CLOCKS  \
+    {                \
+        kCLOCK_Enet0 \
+    }
+
+/*! @brief Clock ip name array for PORT. */
+#define PORT_CLOCKS                                                          \
+    {                                                                        \
+        kCLOCK_PortA, kCLOCK_PortB, kCLOCK_PortC, kCLOCK_PortD, kCLOCK_PortE \
+    }
+
+/*! @brief Clock ip name array for SAI. */
+#define SAI_CLOCKS  \
+    {               \
+        kCLOCK_Sai0 \
+    }
+
+/*! @brief Clock ip name array for FLEXBUS. */
+#define FLEXBUS_CLOCKS  \
+    {                   \
+        kCLOCK_Flexbus0 \
+    }
+
+/*! @brief Clock ip name array for EWM. */
+#define EWM_CLOCKS  \
+    {               \
+        kCLOCK_Ewm0 \
+    }
+
+/*! @brief Clock ip name array for PIT. */
+#define PIT_CLOCKS  \
+    {               \
+        kCLOCK_Pit0 \
+    }
+
+/*! @brief Clock ip name array for DSPI. */
+#define DSPI_CLOCKS                           \
+    {                                         \
+        kCLOCK_Spi0, kCLOCK_Spi1, kCLOCK_Spi2 \
+    }
+
+/*! @brief Clock ip name array for LPTMR. */
+#define LPTMR_CLOCKS  \
+    {                 \
+        kCLOCK_Lptmr0 \
+    }
+
+/*! @brief Clock ip name array for SDHC. */
+#define SDHC_CLOCKS  \
+    {                \
+        kCLOCK_Sdhc0 \
+    }
+
+/*! @brief Clock ip name array for FTM. */
+#define FTM_CLOCKS                                         \
+    {                                                      \
+        kCLOCK_Ftm0, kCLOCK_Ftm1, kCLOCK_Ftm2, kCLOCK_Ftm3 \
+    }
+
+/*! @brief Clock ip name array for EDMA. */
+#define EDMA_CLOCKS \
+    {               \
+        kCLOCK_Dma0 \
+    }
+
+/*! @brief Clock ip name array for FLEXCAN. */
+#define FLEXCAN_CLOCKS  \
+    {                   \
+        kCLOCK_Flexcan0 \
+    }
+
+/*! @brief Clock ip name array for DAC. */
+#define DAC_CLOCKS               \
+    {                            \
+        kCLOCK_Dac0, kCLOCK_Dac1 \
+    }
+
+/*! @brief Clock ip name array for ADC16. */
+#define ADC16_CLOCKS             \
+    {                            \
+        kCLOCK_Adc0, kCLOCK_Adc1 \
+    }
+
+/*! @brief Clock ip name array for MPU. */
+#define SYSMPU_CLOCKS  \
+    {                  \
+        kCLOCK_Sysmpu0 \
+    }
+
+/*! @brief Clock ip name array for VREF. */
+#define VREF_CLOCKS  \
+    {                \
+        kCLOCK_Vref0 \
+    }
+
+/*! @brief Clock ip name array for CMT. */
+#define CMT_CLOCKS  \
+    {               \
+        kCLOCK_Cmt0 \
+    }
+
+/*! @brief Clock ip name array for UART. */
+#define UART_CLOCKS                                                                        \
+    {                                                                                      \
+        kCLOCK_Uart0, kCLOCK_Uart1, kCLOCK_Uart2, kCLOCK_Uart3, kCLOCK_Uart4, kCLOCK_Uart5 \
+    }
+
+/*! @brief Clock ip name array for RNGA. */
+#define RNGA_CLOCKS  \
+    {                \
+        kCLOCK_Rnga0 \
+    }
+
+/*! @brief Clock ip name array for CRC. */
+#define CRC_CLOCKS  \
+    {               \
+        kCLOCK_Crc0 \
+    }
+
+/*! @brief Clock ip name array for I2C. */
+#define I2C_CLOCKS                            \
+    {                                         \
+        kCLOCK_I2c0, kCLOCK_I2c1, kCLOCK_I2c2 \
+    }
+
+/*! @brief Clock ip name array for PDB. */
+#define PDB_CLOCKS  \
+    {               \
+        kCLOCK_Pdb0 \
+    }
+
+/*! @brief Clock ip name array for FTF. */
+#define FTF_CLOCKS  \
+    {               \
+        kCLOCK_Ftf0 \
+    }
+
+/*! @brief Clock ip name array for CMP. */
+#define CMP_CLOCKS                            \
+    {                                         \
+        kCLOCK_Cmp0, kCLOCK_Cmp1, kCLOCK_Cmp2 \
+    }
+
+/*!
+ * @brief LPO clock frequency.
+ */
+#define LPO_CLK_FREQ 1000U
+
+/*! @brief Peripherals clock source definition. */
+#define SYS_CLK kCLOCK_CoreSysClk
+#define BUS_CLK kCLOCK_BusClk
+
+#define I2C0_CLK_SRC BUS_CLK
+#define I2C1_CLK_SRC BUS_CLK
+#define I2C2_CLK_SRC BUS_CLK
+#define DSPI0_CLK_SRC BUS_CLK
+#define DSPI1_CLK_SRC BUS_CLK
+#define DSPI2_CLK_SRC BUS_CLK
+#define UART0_CLK_SRC SYS_CLK
+#define UART1_CLK_SRC SYS_CLK
+#define UART2_CLK_SRC BUS_CLK
+#define UART3_CLK_SRC BUS_CLK
+#define UART4_CLK_SRC BUS_CLK
+#define UART5_CLK_SRC BUS_CLK
+
+/*! @brief Clock name used to get clock frequency. */
+typedef enum _clock_name
+{
+
+    /* ----------------------------- System layer clock -------------------------------*/
+    kCLOCK_CoreSysClk,    /*!< Core/system clock                                         */
+    kCLOCK_PlatClk,       /*!< Platform clock                                            */
+    kCLOCK_BusClk,        /*!< Bus clock                                                 */
+    kCLOCK_FlexBusClk,    /*!< FlexBus clock                                             */
+    kCLOCK_FlashClk,      /*!< Flash clock                                               */
+    kCLOCK_FastPeriphClk, /*!< Fast peripheral clock                                     */
+    kCLOCK_PllFllSelClk,  /*!< The clock after SIM[PLLFLLSEL].                           */
+
+    /* ---------------------------------- OSC clock -----------------------------------*/
+    kCLOCK_Er32kClk,       /*!< External reference 32K clock (ERCLK32K)                   */
+    kCLOCK_Osc0ErClk,      /*!< OSC0 external reference clock (OSC0ERCLK)                 */
+    kCLOCK_Osc1ErClk,      /*!< OSC1 external reference clock (OSC1ERCLK)                 */
+    kCLOCK_Osc0ErClkUndiv, /*!< OSC0 external reference undivided clock(OSC0ERCLK_UNDIV). */
+
+    /* ----------------------------- MCG and MCG-Lite clock ---------------------------*/
+    kCLOCK_McgFixedFreqClk,   /*!< MCG fixed frequency clock (MCGFFCLK)                      */
+    kCLOCK_McgInternalRefClk, /*!< MCG internal reference clock (MCGIRCLK)                   */
+    kCLOCK_McgFllClk,         /*!< MCGFLLCLK                                                 */
+    kCLOCK_McgPll0Clk,        /*!< MCGPLL0CLK                                                */
+    kCLOCK_McgPll1Clk,        /*!< MCGPLL1CLK                                                */
+    kCLOCK_McgExtPllClk,      /*!< EXT_PLLCLK                                                */
+    kCLOCK_McgPeriphClk,      /*!< MCG peripheral clock (MCGPCLK)                            */
+    kCLOCK_McgIrc48MClk,      /*!< MCG IRC48M clock                                          */
+
+    /* --------------------------------- Other clock ----------------------------------*/
+    kCLOCK_LpoClk, /*!< LPO clock                                                 */
+
+} clock_name_t;
+
+/*! @brief USB clock source definition. */
+typedef enum _clock_usb_src
+{
+    kCLOCK_UsbSrcPll0   = SIM_SOPT2_USBSRC(1U) | SIM_SOPT2_PLLFLLSEL(1U), /*!< Use PLL0.      */
+    kCLOCK_UsbSrcIrc48M = SIM_SOPT2_USBSRC(1U) | SIM_SOPT2_PLLFLLSEL(3U), /*!< Use IRC48M.    */
+    kCLOCK_UsbSrcExt    = SIM_SOPT2_USBSRC(0U)                            /*!< Use USB_CLKIN. */
+} clock_usb_src_t;
+
+/*------------------------------------------------------------------------------
+
+ clock_gate_t definition:
+
+ 31                              16                              0
+ -----------------------------------------------------------------
+ | SIM_SCGC register offset       |   control bit offset in SCGC |
+ -----------------------------------------------------------------
+
+ For example, the SDHC clock gate is controlled by SIM_SCGC3[17], the
+ SIM_SCGC3 offset in SIM is 0x1030, then kCLOCK_GateSdhc0 is defined as
+
+              kCLOCK_GateSdhc0 = (0x1030 << 16) | 17;
+
+------------------------------------------------------------------------------*/
+
+#define CLK_GATE_REG_OFFSET_SHIFT 16U
+#define CLK_GATE_REG_OFFSET_MASK 0xFFFF0000U
+#define CLK_GATE_BIT_SHIFT_SHIFT 0U
+#define CLK_GATE_BIT_SHIFT_MASK 0x0000FFFFU
+
+#define CLK_GATE_DEFINE(reg_offset, bit_shift)                                  \
+    ((((reg_offset) << CLK_GATE_REG_OFFSET_SHIFT) & CLK_GATE_REG_OFFSET_MASK) | \
+     (((bit_shift) << CLK_GATE_BIT_SHIFT_SHIFT) & CLK_GATE_BIT_SHIFT_MASK))
+
+#define CLK_GATE_ABSTRACT_REG_OFFSET(x) (((x)&CLK_GATE_REG_OFFSET_MASK) >> CLK_GATE_REG_OFFSET_SHIFT)
+#define CLK_GATE_ABSTRACT_BITS_SHIFT(x) (((x)&CLK_GATE_BIT_SHIFT_MASK) >> CLK_GATE_BIT_SHIFT_SHIFT)
+
+/*! @brief Clock gate name used for CLOCK_EnableClock/CLOCK_DisableClock. */
+typedef enum _clock_ip_name
+{
+    kCLOCK_IpInvalid = 0U,
+    kCLOCK_I2c2      = CLK_GATE_DEFINE(0x1028U, 6U),
+    kCLOCK_Uart4     = CLK_GATE_DEFINE(0x1028U, 10U),
+    kCLOCK_Uart5     = CLK_GATE_DEFINE(0x1028U, 11U),
+
+    kCLOCK_Enet0 = CLK_GATE_DEFINE(0x102CU, 0U),
+    kCLOCK_Dac0  = CLK_GATE_DEFINE(0x102CU, 12U),
+    kCLOCK_Dac1  = CLK_GATE_DEFINE(0x102CU, 13U),
+
+    kCLOCK_Spi2  = CLK_GATE_DEFINE(0x1030U, 12U),
+    kCLOCK_Sdhc0 = CLK_GATE_DEFINE(0x1030U, 17U),
+    kCLOCK_Ftm3  = CLK_GATE_DEFINE(0x1030U, 25U),
+    kCLOCK_Adc1  = CLK_GATE_DEFINE(0x1030U, 27U),
+
+    kCLOCK_Ewm0   = CLK_GATE_DEFINE(0x1034U, 1U),
+    kCLOCK_Cmt0   = CLK_GATE_DEFINE(0x1034U, 2U),
+    kCLOCK_I2c0   = CLK_GATE_DEFINE(0x1034U, 6U),
+    kCLOCK_I2c1   = CLK_GATE_DEFINE(0x1034U, 7U),
+    kCLOCK_Uart0  = CLK_GATE_DEFINE(0x1034U, 10U),
+    kCLOCK_Uart1  = CLK_GATE_DEFINE(0x1034U, 11U),
+    kCLOCK_Uart2  = CLK_GATE_DEFINE(0x1034U, 12U),
+    kCLOCK_Uart3  = CLK_GATE_DEFINE(0x1034U, 13U),
+    kCLOCK_Usbfs0 = CLK_GATE_DEFINE(0x1034U, 18U),
+    kCLOCK_Cmp0   = CLK_GATE_DEFINE(0x1034U, 19U),
+    kCLOCK_Cmp1   = CLK_GATE_DEFINE(0x1034U, 19U),
+    kCLOCK_Cmp2   = CLK_GATE_DEFINE(0x1034U, 19U),
+    kCLOCK_Vref0  = CLK_GATE_DEFINE(0x1034U, 20U),
+
+    kCLOCK_Lptmr0 = CLK_GATE_DEFINE(0x1038U, 0U),
+    kCLOCK_PortA  = CLK_GATE_DEFINE(0x1038U, 9U),
+    kCLOCK_PortB  = CLK_GATE_DEFINE(0x1038U, 10U),
+    kCLOCK_PortC  = CLK_GATE_DEFINE(0x1038U, 11U),
+    kCLOCK_PortD  = CLK_GATE_DEFINE(0x1038U, 12U),
+    kCLOCK_PortE  = CLK_GATE_DEFINE(0x1038U, 13U),
+
+    kCLOCK_Ftf0     = CLK_GATE_DEFINE(0x103CU, 0U),
+    kCLOCK_Dmamux0  = CLK_GATE_DEFINE(0x103CU, 1U),
+    kCLOCK_Flexcan0 = CLK_GATE_DEFINE(0x103CU, 4U),
+    kCLOCK_Rnga0    = CLK_GATE_DEFINE(0x103CU, 9U),
+    kCLOCK_Spi0     = CLK_GATE_DEFINE(0x103CU, 12U),
+    kCLOCK_Spi1     = CLK_GATE_DEFINE(0x103CU, 13U),
+    kCLOCK_Sai0     = CLK_GATE_DEFINE(0x103CU, 15U),
+    kCLOCK_Crc0     = CLK_GATE_DEFINE(0x103CU, 18U),
+    kCLOCK_Usbdcd0  = CLK_GATE_DEFINE(0x103CU, 21U),
+    kCLOCK_Pdb0     = CLK_GATE_DEFINE(0x103CU, 22U),
+    kCLOCK_Pit0     = CLK_GATE_DEFINE(0x103CU, 23U),
+    kCLOCK_Ftm0     = CLK_GATE_DEFINE(0x103CU, 24U),
+    kCLOCK_Ftm1     = CLK_GATE_DEFINE(0x103CU, 25U),
+    kCLOCK_Ftm2     = CLK_GATE_DEFINE(0x103CU, 26U),
+    kCLOCK_Adc0     = CLK_GATE_DEFINE(0x103CU, 27U),
+    kCLOCK_Rtc0     = CLK_GATE_DEFINE(0x103CU, 29U),
+
+    kCLOCK_Flexbus0 = CLK_GATE_DEFINE(0x1040U, 0U),
+    kCLOCK_Dma0     = CLK_GATE_DEFINE(0x1040U, 1U),
+    kCLOCK_Sysmpu0  = CLK_GATE_DEFINE(0x1040U, 2U),
+} clock_ip_name_t;
+
+/*!@brief SIM configuration structure for clock setting. */
+typedef struct _sim_clock_config
+{
+    uint8_t pllFllSel; /*!< PLL/FLL/IRC48M selection.    */
+    uint8_t er32kSrc;  /*!< ERCLK32K source selection.   */
+    uint32_t clkdiv1;  /*!< SIM_CLKDIV1.                 */
+} sim_clock_config_t;
+
+/*! @brief OSC work mode. */
+typedef enum _osc_mode
+{
+    kOSC_ModeExt = 0U, /*!< Use an external clock.   */
+#if (defined(MCG_C2_EREFS_MASK) && !(defined(MCG_C2_EREFS0_MASK)))
+    kOSC_ModeOscLowPower = MCG_C2_EREFS_MASK, /*!< Oscillator low power. */
+#else
+    kOSC_ModeOscLowPower = MCG_C2_EREFS0_MASK, /*!< Oscillator low power. */
+#endif
+    kOSC_ModeOscHighGain = 0U
+#if (defined(MCG_C2_EREFS_MASK) && !(defined(MCG_C2_EREFS0_MASK)))
+                           | MCG_C2_EREFS_MASK
+#else
+                           | MCG_C2_EREFS0_MASK
+#endif
+#if (defined(MCG_C2_HGO_MASK) && !(defined(MCG_C2_HGO0_MASK)))
+                           | MCG_C2_HGO_MASK, /*!< Oscillator high gain. */
+#else
+                           | MCG_C2_HGO0_MASK, /*!< Oscillator high gain. */
+#endif
+} osc_mode_t;
+
+/*! @brief Oscillator capacitor load setting.*/
+enum _osc_cap_load
+{
+    kOSC_Cap2P  = OSC_CR_SC2P_MASK, /*!< 2  pF capacitor load */
+    kOSC_Cap4P  = OSC_CR_SC4P_MASK, /*!< 4  pF capacitor load */
+    kOSC_Cap8P  = OSC_CR_SC8P_MASK, /*!< 8  pF capacitor load */
+    kOSC_Cap16P = OSC_CR_SC16P_MASK /*!< 16 pF capacitor load */
+};
+
+/*! @brief OSCERCLK enable mode. */
+enum _oscer_enable_mode
+{
+    kOSC_ErClkEnable       = OSC_CR_ERCLKEN_MASK, /*!< Enable.              */
+    kOSC_ErClkEnableInStop = OSC_CR_EREFSTEN_MASK /*!< Enable in stop mode. */
+};
+
+/*! @brief OSC configuration for OSCERCLK. */
+typedef struct _oscer_config
+{
+    uint8_t enableMode; /*!< OSCERCLK enable mode. OR'ed value of @ref _oscer_enable_mode. */
+
+} oscer_config_t;
+
+/*!
+ * @brief OSC Initialization Configuration Structure
+ *
+ * Defines the configuration data structure to initialize the OSC.
+ * When porting to a new board, set the following members
+ * according to the board setting:
+ * 1. freq: The external frequency.
+ * 2. workMode: The OSC module mode.
+ */
+typedef struct _osc_config
+{
+    uint32_t freq;              /*!< External clock frequency.    */
+    uint8_t capLoad;            /*!< Capacitor load setting.      */
+    osc_mode_t workMode;        /*!< OSC work mode setting.       */
+    oscer_config_t oscerConfig; /*!< Configuration for OSCERCLK.  */
+} osc_config_t;
+
+/*! @brief MCG FLL reference clock source select. */
+typedef enum _mcg_fll_src
+{
+    kMCG_FllSrcExternal, /*!< External reference clock is selected          */
+    kMCG_FllSrcInternal  /*!< The slow internal reference clock is selected */
+} mcg_fll_src_t;
+
+/*! @brief MCG internal reference clock select */
+typedef enum _mcg_irc_mode
+{
+    kMCG_IrcSlow, /*!< Slow internal reference clock selected */
+    kMCG_IrcFast  /*!< Fast internal reference clock selected */
+} mcg_irc_mode_t;
+
+/*! @brief MCG DCO Maximum Frequency with 32.768 kHz Reference */
+typedef enum _mcg_dmx32
+{
+    kMCG_Dmx32Default, /*!< DCO has a default range of 25% */
+    kMCG_Dmx32Fine     /*!< DCO is fine-tuned for maximum frequency with 32.768 kHz reference */
+} mcg_dmx32_t;
+
+/*! @brief MCG DCO range select */
+typedef enum _mcg_drs
+{
+    kMCG_DrsLow,     /*!< Low frequency range       */
+    kMCG_DrsMid,     /*!< Mid frequency range       */
+    kMCG_DrsMidHigh, /*!< Mid-High frequency range  */
+    kMCG_DrsHigh     /*!< High frequency range      */
+} mcg_drs_t;
+
+/*! @brief MCG PLL reference clock select */
+typedef enum _mcg_pll_ref_src
+{
+    kMCG_PllRefOsc0, /*!< Selects OSC0 as PLL reference clock                 */
+    kMCG_PllRefOsc1  /*!< Selects OSC1 as PLL reference clock                 */
+} mcg_pll_ref_src_t;
+
+/*! @brief MCGOUT clock source. */
+typedef enum _mcg_clkout_src
+{
+    kMCG_ClkOutSrcOut,      /*!< Output of the FLL is selected (reset default)  */
+    kMCG_ClkOutSrcInternal, /*!< Internal reference clock is selected           */
+    kMCG_ClkOutSrcExternal, /*!< External reference clock is selected           */
+} mcg_clkout_src_t;
+
+/*! @brief MCG Automatic Trim Machine Select */
+typedef enum _mcg_atm_select
+{
+    kMCG_AtmSel32k, /*!< 32 kHz Internal Reference Clock selected  */
+    kMCG_AtmSel4m   /*!< 4 MHz Internal Reference Clock selected   */
+} mcg_atm_select_t;
+
+/*! @brief MCG OSC Clock Select */
+typedef enum _mcg_oscsel
+{
+    kMCG_OscselOsc, /*!< Selects System Oscillator (OSCCLK) */
+    kMCG_OscselRtc, /*!< Selects 32 kHz RTC Oscillator      */
+    kMCG_OscselIrc  /*!< Selects 48 MHz IRC Oscillator      */
+} mcg_oscsel_t;
+
+/*! @brief MCG PLLCS select */
+typedef enum _mcg_pll_clk_select
+{
+    kMCG_PllClkSelPll0, /*!< PLL0 output clock is selected  */
+    kMCG_PllClkSelPll1  /* PLL1 output clock is selected    */
+} mcg_pll_clk_select_t;
+
+/*! @brief MCG clock monitor mode. */
+typedef enum _mcg_monitor_mode
+{
+    kMCG_MonitorNone, /*!< Clock monitor is disabled.         */
+    kMCG_MonitorInt,  /*!< Trigger interrupt when clock lost. */
+    kMCG_MonitorReset /*!< System reset when clock lost.      */
+} mcg_monitor_mode_t;
+
+/*! @brief MCG status. */
+enum
+{
+    kStatus_MCG_ModeUnreachable = MAKE_STATUS(kStatusGroup_MCG, 0U),       /*!< Can't switch to target mode. */
+    kStatus_MCG_ModeInvalid     = MAKE_STATUS(kStatusGroup_MCG, 1U),       /*!< Current mode invalid for the specific
+                                                                               function. */
+    kStatus_MCG_AtmBusClockInvalid    = MAKE_STATUS(kStatusGroup_MCG, 2U), /*!< Invalid bus clock for ATM. */
+    kStatus_MCG_AtmDesiredFreqInvalid = MAKE_STATUS(kStatusGroup_MCG, 3U), /*!< Invalid desired frequency for ATM. */
+    kStatus_MCG_AtmIrcUsed            = MAKE_STATUS(kStatusGroup_MCG, 4U), /*!< IRC is used when using ATM. */
+    kStatus_MCG_AtmHardwareFail       = MAKE_STATUS(kStatusGroup_MCG, 5U), /*!< Hardware fail occurs during ATM. */
+    kStatus_MCG_SourceUsed            = MAKE_STATUS(kStatusGroup_MCG, 6U)  /*!< Can't change the clock source because
+                                                                               it is in use. */
+};
+
+/*! @brief MCG status flags. */
+enum
+{
+    kMCG_Osc0LostFlag   = (1U << 0U), /*!< OSC0 lost.         */
+    kMCG_Osc0InitFlag   = (1U << 1U), /*!< OSC0 crystal initialized. */
+    kMCG_RtcOscLostFlag = (1U << 4U), /*!< RTC OSC lost.      */
+    kMCG_Pll0LostFlag   = (1U << 5U), /*!< PLL0 lost.         */
+    kMCG_Pll0LockFlag   = (1U << 6U), /*!< PLL0 locked.       */
+};
+
+/*! @brief MCG internal reference clock (MCGIRCLK) enable mode definition. */
+enum
+{
+    kMCG_IrclkEnable       = MCG_C1_IRCLKEN_MASK, /*!< MCGIRCLK enable.              */
+    kMCG_IrclkEnableInStop = MCG_C1_IREFSTEN_MASK /*!< MCGIRCLK enable in stop mode. */
+};
+
+/*! @brief MCG PLL clock enable mode definition. */
+enum
+{
+    kMCG_PllEnableIndependent = MCG_C5_PLLCLKEN0_MASK, /*!< MCGPLLCLK enable independent of the
+                                                           MCG clock mode. Generally, the PLL
+                                                           is disabled in FLL modes
+                                                           (FEI/FBI/FEE/FBE). Setting the PLL clock
+                                                           enable independent, enables the
+                                                           PLL in the FLL modes.          */
+    kMCG_PllEnableInStop = MCG_C5_PLLSTEN0_MASK        /*!< MCGPLLCLK enable in STOP mode. */
+};
+
+/*! @brief MCG mode definitions */
+typedef enum _mcg_mode
+{
+    kMCG_ModeFEI = 0U, /*!< FEI   - FLL Engaged Internal         */
+    kMCG_ModeFBI,      /*!< FBI   - FLL Bypassed Internal        */
+    kMCG_ModeBLPI,     /*!< BLPI  - Bypassed Low Power Internal  */
+    kMCG_ModeFEE,      /*!< FEE   - FLL Engaged External         */
+    kMCG_ModeFBE,      /*!< FBE   - FLL Bypassed External        */
+    kMCG_ModeBLPE,     /*!< BLPE  - Bypassed Low Power External  */
+    kMCG_ModePBE,      /*!< PBE   - PLL Bypassed External        */
+    kMCG_ModePEE,      /*!< PEE   - PLL Engaged External         */
+    kMCG_ModeError     /*!< Unknown mode                         */
+} mcg_mode_t;
+
+/*! @brief MCG PLL configuration. */
+typedef struct _mcg_pll_config
+{
+    uint8_t enableMode; /*!< Enable mode. OR'ed value of @ref _mcg_pll_enable_mode. */
+    uint8_t prdiv;      /*!< Reference divider PRDIV.    */
+    uint8_t vdiv;       /*!< VCO divider VDIV.           */
+} mcg_pll_config_t;
+
+/*! @brief MCG mode change configuration structure
+ *
+ * When porting to a new board, set the following members
+ * according to the board setting:
+ * 1. frdiv: If the FLL uses the external reference clock, set this
+ *    value to ensure that the external reference clock divided by frdiv is
+ *    in the 31.25 kHz to 39.0625 kHz range.
+ * 2. The PLL reference clock divider PRDIV: PLL reference clock frequency after
+ *    PRDIV should be in the FSL_FEATURE_MCG_PLL_REF_MIN to
+ *    FSL_FEATURE_MCG_PLL_REF_MAX range.
+ */
+typedef struct _mcg_config
+{
+    mcg_mode_t mcgMode; /*!< MCG mode.                   */
+
+    /* ----------------------- MCGIRCCLK settings ------------------------ */
+    uint8_t irclkEnableMode; /*!< MCGIRCLK enable mode.       */
+    mcg_irc_mode_t ircs;     /*!< Source, MCG_C2[IRCS].       */
+    uint8_t fcrdiv;          /*!< Divider, MCG_SC[FCRDIV].    */
+
+    /* ------------------------ MCG FLL settings ------------------------- */
+    uint8_t frdiv;       /*!< Divider MCG_C1[FRDIV].      */
+    mcg_drs_t drs;       /*!< DCO range MCG_C4[DRST_DRS]. */
+    mcg_dmx32_t dmx32;   /*!< MCG_C4[DMX32].              */
+    mcg_oscsel_t oscsel; /*!< OSC select MCG_C7[OSCSEL].  */
+
+    /* ------------------------ MCG PLL settings ------------------------- */
+    mcg_pll_config_t pll0Config; /*!< MCGPLL0CLK configuration.   */
+
+} mcg_config_t;
+
+/*******************************************************************************
+ * API
+ ******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif /* __cplusplus */
+
+/*!
+ * @brief Enable the clock for specific IP.
+ *
+ * @param name  Which clock to enable, see \ref clock_ip_name_t.
+ */
+static inline void CLOCK_EnableClock(clock_ip_name_t name)
+{
+    uint32_t regAddr = SIM_BASE + CLK_GATE_ABSTRACT_REG_OFFSET((uint32_t)name);
+    (*(volatile uint32_t *)regAddr) |= (1UL << CLK_GATE_ABSTRACT_BITS_SHIFT((uint32_t)name));
+}
+
+/*!
+ * @brief Disable the clock for specific IP.
+ *
+ * @param name  Which clock to disable, see \ref clock_ip_name_t.
+ */
+static inline void CLOCK_DisableClock(clock_ip_name_t name)
+{
+    uint32_t regAddr = SIM_BASE + CLK_GATE_ABSTRACT_REG_OFFSET((uint32_t)name);
+    (*(volatile uint32_t *)regAddr) &= ~(1UL << CLK_GATE_ABSTRACT_BITS_SHIFT((uint32_t)name));
+}
+
+/*!
+ * @brief Set ERCLK32K source.
+ *
+ * @param src The value to set ERCLK32K clock source.
+ */
+static inline void CLOCK_SetEr32kClock(uint32_t src)
+{
+    SIM->SOPT1 = ((SIM->SOPT1 & ~SIM_SOPT1_OSC32KSEL_MASK) | SIM_SOPT1_OSC32KSEL(src));
+}
+
+/*!
+ * @brief Set SDHC0 clock source.
+ *
+ * @param src The value to set SDHC0 clock source.
+ */
+static inline void CLOCK_SetSdhc0Clock(uint32_t src)
+{
+    SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_SDHCSRC_MASK) | SIM_SOPT2_SDHCSRC(src));
+}
+
+/*!
+ * @brief Set enet timestamp clock source.
+ *
+ * @param src The value to set enet timestamp clock source.
+ */
+static inline void CLOCK_SetEnetTime0Clock(uint32_t src)
+{
+    SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_TIMESRC_MASK) | SIM_SOPT2_TIMESRC(src));
+}
+
+/*!
+ * @brief Set RMII clock source.
+ *
+ * @param src The value to set RMII clock source.
+ */
+static inline void CLOCK_SetRmii0Clock(uint32_t src)
+{
+    SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_RMIISRC_MASK) | SIM_SOPT2_RMIISRC(src));
+}
+
+/*!
+ * @brief Set debug trace clock source.
+ *
+ * @param src The value to set debug trace clock source.
+ */
+static inline void CLOCK_SetTraceClock(uint32_t src)
+{
+    SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_TRACECLKSEL_MASK) | SIM_SOPT2_TRACECLKSEL(src));
+}
+
+/*!
+ * @brief Set PLLFLLSEL clock source.
+ *
+ * @param src The value to set PLLFLLSEL clock source.
+ */
+static inline void CLOCK_SetPllFllSelClock(uint32_t src)
+{
+    SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_PLLFLLSEL_MASK) | SIM_SOPT2_PLLFLLSEL(src));
+}
+
+/*!
+ * @brief Set CLKOUT source.
+ *
+ * @param src The value to set CLKOUT source.
+ */
+static inline void CLOCK_SetClkOutClock(uint32_t src)
+{
+    SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_CLKOUTSEL_MASK) | SIM_SOPT2_CLKOUTSEL(src));
+}
+
+/*!
+ * @brief Set RTC_CLKOUT source.
+ *
+ * @param src The value to set RTC_CLKOUT source.
+ */
+static inline void CLOCK_SetRtcClkOutClock(uint32_t src)
+{
+    SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_RTCCLKOUTSEL_MASK) | SIM_SOPT2_RTCCLKOUTSEL(src));
+}
+
+/*! @brief Enable USB FS clock.
+ *
+ * @param src  USB FS clock source.
+ * @param freq The frequency specified by src.
+ * @retval true The clock is set successfully.
+ * @retval false The clock source is invalid to get proper USB FS clock.
+ */
+bool CLOCK_EnableUsbfs0Clock(clock_usb_src_t src, uint32_t freq);
+
+/*! @brief Disable USB FS clock.
+ *
+ * Disable USB FS clock.
+ */
+static inline void CLOCK_DisableUsbfs0Clock(void)
+{
+    CLOCK_DisableClock(kCLOCK_Usbfs0);
+}
+
+/*!
+ * @brief System clock divider
+ *
+ * Set the SIM_CLKDIV1[OUTDIV1], SIM_CLKDIV1[OUTDIV2], SIM_CLKDIV1[OUTDIV3], SIM_CLKDIV1[OUTDIV4].
+ *
+ * @param outdiv1 Clock 1 output divider value.
+ *
+ * @param outdiv2 Clock 2 output divider value.
+ *
+ * @param outdiv3 Clock 3 output divider value.
+ *
+ * @param outdiv4 Clock 4 output divider value.
+ */
+static inline void CLOCK_SetOutDiv(uint32_t outdiv1, uint32_t outdiv2, uint32_t outdiv3, uint32_t outdiv4)
+{
+    SIM->CLKDIV1 = SIM_CLKDIV1_OUTDIV1(outdiv1) | SIM_CLKDIV1_OUTDIV2(outdiv2) | SIM_CLKDIV1_OUTDIV3(outdiv3) |
+                   SIM_CLKDIV1_OUTDIV4(outdiv4);
+}
+
+/*!
+ * @brief Gets the clock frequency for a specific clock name.
+ *
+ * This function checks the current clock configurations and then calculates
+ * the clock frequency for a specific clock name defined in clock_name_t.
+ * The MCG must be properly configured before using this function.
+ *
+ * @param clockName Clock names defined in clock_name_t
+ * @return Clock frequency value in Hertz
+ */
+uint32_t CLOCK_GetFreq(clock_name_t clockName);
+
+/*!
+ * @brief Get the core clock or system clock frequency.
+ *
+ * @return Clock frequency in Hz.
+ */
+uint32_t CLOCK_GetCoreSysClkFreq(void);
+
+/*!
+ * @brief Get the bus clock frequency.
+ *
+ * @return Clock frequency in Hz.
+ */
+uint32_t CLOCK_GetBusClkFreq(void);
+
+/*!
+ * @brief Get the flexbus clock frequency.
+ *
+ * @return Clock frequency in Hz.
+ */
+uint32_t CLOCK_GetFlexBusClkFreq(void);
+
+/*!
+ * @brief Get the flash clock frequency.
+ *
+ * @return Clock frequency in Hz.
+ */
+uint32_t CLOCK_GetFlashClkFreq(void);
+
+/*!
+ * @brief Get the output clock frequency selected by SIM[PLLFLLSEL].
+ *
+ * @return Clock frequency in Hz.
+ */
+uint32_t CLOCK_GetPllFllSelClkFreq(void);
+
+/*!
+ * @brief Get the external reference 32K clock frequency (ERCLK32K).
+ *
+ * @return Clock frequency in Hz.
+ */
+uint32_t CLOCK_GetEr32kClkFreq(void);
+
+/*!
+ * @brief Get the OSC0 external reference clock frequency (OSC0ERCLK).
+ *
+ * @return Clock frequency in Hz.
+ */
+uint32_t CLOCK_GetOsc0ErClkFreq(void);
+
+/*!
+ * @brief Set the clock configure in SIM module.
+ *
+ * This function sets system layer clock settings in SIM module.
+ *
+ * @param config Pointer to the configure structure.
+ */
+void CLOCK_SetSimConfig(sim_clock_config_t const *config);
+
+/*!
+ * @brief Set the system clock dividers in SIM to safe value.
+ *
+ * The system level clocks (core clock, bus clock, flexbus clock and flash clock)
+ * must be in allowed ranges. During MCG clock mode switch, the MCG output clock
+ * changes then the system level clocks may be out of range. This function could
+ * be used before MCG mode change, to make sure system level clocks are in allowed
+ * range.
+ *
+ * @param config Pointer to the configure structure.
+ */
+static inline void CLOCK_SetSimSafeDivs(void)
+{
+    SIM->CLKDIV1 = 0x01240000U;
+}
+
+/*! @name MCG frequency functions. */
+/*@{*/
+
+/*!
+ * @brief Gets the MCG output clock (MCGOUTCLK) frequency.
+ *
+ * This function gets the MCG output clock frequency in Hz based on the current MCG
+ * register value.
+ *
+ * @return The frequency of MCGOUTCLK.
+ */
+uint32_t CLOCK_GetOutClkFreq(void);
+
+/*!
+ * @brief Gets the MCG FLL clock (MCGFLLCLK) frequency.
+ *
+ * This function gets the MCG FLL clock frequency in Hz based on the current MCG
+ * register value. The FLL is enabled in FEI/FBI/FEE/FBE mode and
+ * disabled in low power state in other modes.
+ *
+ * @return The frequency of MCGFLLCLK.
+ */
+uint32_t CLOCK_GetFllFreq(void);
+
+/*!
+ * @brief Gets the MCG internal reference clock (MCGIRCLK) frequency.
+ *
+ * This function gets the MCG internal reference clock frequency in Hz based
+ * on the current MCG register value.
+ *
+ * @return The frequency of MCGIRCLK.
+ */
+uint32_t CLOCK_GetInternalRefClkFreq(void);
+
+/*!
+ * @brief Gets the MCG fixed frequency clock (MCGFFCLK) frequency.
+ *
+ * This function gets the MCG fixed frequency clock frequency in Hz based
+ * on the current MCG register value.
+ *
+ * @return The frequency of MCGFFCLK.
+ */
+uint32_t CLOCK_GetFixedFreqClkFreq(void);
+
+/*!
+ * @brief Gets the MCG PLL0 clock (MCGPLL0CLK) frequency.
+ *
+ * This function gets the MCG PLL0 clock frequency in Hz based on the current MCG
+ * register value.
+ *
+ * @return The frequency of MCGPLL0CLK.
+ */
+uint32_t CLOCK_GetPll0Freq(void);
+
+/*@}*/
+
+/*! @name MCG clock configuration. */
+/*@{*/
+
+/*!
+ * @brief Enables or disables the MCG low power.
+ *
+ * Enabling the MCG low power disables the PLL and FLL in bypass modes. In other words,
+ * in FBE and PBE modes, enabling low power sets the MCG to BLPE mode. In FBI and
+ * PBI modes, enabling low power sets the MCG to BLPI mode.
+ * When disabling the MCG low power, the PLL or FLL are enabled based on MCG settings.
+ *
+ * @param enable True to enable MCG low power, false to disable MCG low power.
+ */
+static inline void CLOCK_SetLowPowerEnable(bool enable)
+{
+    if (enable)
+    {
+        MCG->C2 |= MCG_C2_LP_MASK;
+    }
+    else
+    {
+        MCG->C2 &= ~(uint8_t)MCG_C2_LP_MASK;
+    }
+}
+
+/*!
+ * @brief Configures the Internal Reference clock (MCGIRCLK).
+ *
+ * This function sets the \c MCGIRCLK base on parameters. It also selects the IRC
+ * source. If the fast IRC is used, this function sets the fast IRC divider.
+ * This function also sets whether the \c MCGIRCLK is enabled in stop mode.
+ * Calling this function in FBI/PBI/BLPI modes may change the system clock. As a result,
+ * using the function in these modes it is not allowed.
+ *
+ * @param enableMode MCGIRCLK enable mode, OR'ed value of @ref _mcg_irclk_enable_mode.
+ * @param ircs       MCGIRCLK clock source, choose fast or slow.
+ * @param fcrdiv     Fast IRC divider setting (\c FCRDIV).
+ * @retval kStatus_MCG_SourceUsed Because the internal reference clock is used as a clock source,
+ * the configuration should not be changed. Otherwise, a glitch occurs.
+ * @retval kStatus_Success MCGIRCLK configuration finished successfully.
+ */
+status_t CLOCK_SetInternalRefClkConfig(uint8_t enableMode, mcg_irc_mode_t ircs, uint8_t fcrdiv);
+
+/*!
+ * @brief Selects the MCG external reference clock.
+ *
+ * Selects the MCG external reference clock source, changes the MCG_C7[OSCSEL],
+ * and waits for the clock source to be stable. Because the external reference
+ * clock should not be changed in FEE/FBE/BLPE/PBE/PEE modes, do not call this function in these modes.
+ *
+ * @param oscsel MCG external reference clock source, MCG_C7[OSCSEL].
+ * @retval kStatus_MCG_SourceUsed Because the external reference clock is used as a clock source,
+ * the configuration should not be changed. Otherwise, a glitch occurs.
+ * @retval kStatus_Success External reference clock set successfully.
+ */
+status_t CLOCK_SetExternalRefClkConfig(mcg_oscsel_t oscsel);
+
+/*!
+ * @brief Set the FLL external reference clock divider value.
+ *
+ * Sets the FLL external reference clock divider value, the register MCG_C1[FRDIV].
+ *
+ * @param frdiv The FLL external reference clock divider value, MCG_C1[FRDIV].
+ */
+static inline void CLOCK_SetFllExtRefDiv(uint8_t frdiv)
+{
+    MCG->C1 = (uint8_t)((MCG->C1 & ~MCG_C1_FRDIV_MASK) | MCG_C1_FRDIV(frdiv));
+}
+
+/*!
+ * @brief Enables the PLL0 in FLL mode.
+ *
+ * This function sets us the PLL0 in FLL mode and reconfigures
+ * the PLL0. Ensure that the PLL reference
+ * clock is enabled before calling this function and that the PLL0 is not used as a clock source.
+ * The function CLOCK_CalcPllDiv gets the correct PLL
+ * divider values.
+ *
+ * @param config Pointer to the configuration structure.
+ */
+void CLOCK_EnablePll0(mcg_pll_config_t const *config);
+
+/*!
+ * @brief Disables the PLL0 in FLL mode.
+ *
+ * This function disables the PLL0 in FLL mode. It should be used together with the
+ * @ref CLOCK_EnablePll0.
+ */
+static inline void CLOCK_DisablePll0(void)
+{
+    MCG->C5 &= (uint8_t)(~(MCG_C5_PLLCLKEN0_MASK | MCG_C5_PLLSTEN0_MASK));
+}
+
+/*!
+ * @brief Calculates the PLL divider setting for a desired output frequency.
+ *
+ * This function calculates the correct reference clock divider (\c PRDIV) and
+ * VCO divider (\c VDIV) to generate a desired PLL output frequency. It returns the
+ * closest frequency match with the corresponding \c PRDIV/VDIV
+ * returned from parameters. If a desired frequency is not valid, this function
+ * returns 0.
+ *
+ * @param refFreq    PLL reference clock frequency.
+ * @param desireFreq Desired PLL output frequency.
+ * @param prdiv      PRDIV value to generate desired PLL frequency.
+ * @param vdiv       VDIV value to generate desired PLL frequency.
+ * @return Closest frequency match that the PLL was able generate.
+ */
+uint32_t CLOCK_CalcPllDiv(uint32_t refFreq, uint32_t desireFreq, uint8_t *prdiv, uint8_t *vdiv);
+
+/*@}*/
+
+/*! @name MCG clock lock monitor functions. */
+/*@{*/
+
+/*!
+ * @brief Sets the OSC0 clock monitor mode.
+ *
+ * This function sets the OSC0 clock monitor mode. See @ref mcg_monitor_mode_t for details.
+ *
+ * @param mode Monitor mode to set.
+ */
+void CLOCK_SetOsc0MonitorMode(mcg_monitor_mode_t mode);
+
+/*!
+ * @brief Sets the RTC OSC clock monitor mode.
+ *
+ * This function sets the RTC OSC clock monitor mode. See @ref mcg_monitor_mode_t for details.
+ *
+ * @param mode Monitor mode to set.
+ */
+void CLOCK_SetRtcOscMonitorMode(mcg_monitor_mode_t mode);
+
+/*!
+ * @brief Sets the PLL0 clock monitor mode.
+ *
+ * This function sets the PLL0 clock monitor mode. See @ref mcg_monitor_mode_t for details.
+ *
+ * @param mode Monitor mode to set.
+ */
+void CLOCK_SetPll0MonitorMode(mcg_monitor_mode_t mode);
+
+/*!
+ * @brief Gets the MCG status flags.
+ *
+ * This function gets the MCG clock status flags. All status flags are
+ * returned as a logical OR of the enumeration @ref _mcg_status_flags_t. To
+ * check a specific flag, compare the return value with the flag.
+ *
+ * Example:
+ * @code
+ * To check the clock lost lock status of OSC0 and PLL0.
+ * uint32_t mcgFlags;
+ *
+ * mcgFlags = CLOCK_GetStatusFlags();
+ *
+ * if (mcgFlags & kMCG_Osc0LostFlag)
+ * {
+ *     OSC0 clock lock lost. Do something.
+ * }
+ * if (mcgFlags & kMCG_Pll0LostFlag)
+ * {
+ *     PLL0 clock lock lost. Do something.
+ * }
+ * @endcode
+ *
+ * @return  Logical OR value of the @ref _mcg_status_flags_t.
+ */
+uint32_t CLOCK_GetStatusFlags(void);
+
+/*!
+ * @brief Clears the MCG status flags.
+ *
+ * This function clears the MCG clock lock lost status. The parameter is a logical
+ * OR value of the flags to clear. See @ref _mcg_status_flags_t.
+ *
+ * Example:
+ * @code
+ * To clear the clock lost lock status flags of OSC0 and PLL0.
+ *
+ * CLOCK_ClearStatusFlags(kMCG_Osc0LostFlag | kMCG_Pll0LostFlag);
+ * @endcode
+ *
+ * @param mask The status flags to clear. This is a logical OR of members of the
+ *             enumeration @ref _mcg_status_flags_t.
+ */
+void CLOCK_ClearStatusFlags(uint32_t mask);
+
+/*@}*/
+
+/*!
+ * @name OSC configuration
+ * @{
+ */
+
+/*!
+ * @brief Configures the OSC external reference clock (OSCERCLK).
+ *
+ * This function configures the OSC external reference clock (OSCERCLK).
+ * This is an example to enable the OSCERCLK in normal and stop modes and also set
+ * the output divider to 1:
+ *
+   @code
+   oscer_config_t config =
+   {
+       .enableMode = kOSC_ErClkEnable | kOSC_ErClkEnableInStop,
+       .erclkDiv   = 1U,
+   };
+
+   OSC_SetExtRefClkConfig(OSC, &config);
+   @endcode
+ *
+ * @param base   OSC peripheral address.
+ * @param config Pointer to the configuration structure.
+ */
+static inline void OSC_SetExtRefClkConfig(OSC_Type *base, oscer_config_t const *config)
+{
+    uint8_t reg = base->CR;
+
+    reg &= (uint8_t)(~(OSC_CR_ERCLKEN_MASK | OSC_CR_EREFSTEN_MASK));
+    reg |= config->enableMode;
+
+    base->CR = reg;
+}
+
+/*!
+ * @brief Sets the capacitor load configuration for the oscillator.
+ *
+ * This function sets the specified capacitors configuration for the oscillator.
+ * This should be done in the early system level initialization function call
+ * based on the system configuration.
+ *
+ * @param base   OSC peripheral address.
+ * @param capLoad OR'ed value for the capacitor load option, see \ref _osc_cap_load.
+ *
+ * Example:
+   @code
+   To enable only 2 pF and 8 pF capacitor load, please use like this.
+   OSC_SetCapLoad(OSC, kOSC_Cap2P | kOSC_Cap8P);
+   @endcode
+ */
+static inline void OSC_SetCapLoad(OSC_Type *base, uint8_t capLoad)
+{
+    uint8_t reg = base->CR;
+
+    reg &= (uint8_t)(~(OSC_CR_SC2P_MASK | OSC_CR_SC4P_MASK | OSC_CR_SC8P_MASK | OSC_CR_SC16P_MASK));
+    reg |= capLoad;
+
+    base->CR = reg;
+}
+
+/*!
+ * @brief Initializes the OSC0.
+ *
+ * This function initializes the OSC0 according to the board configuration.
+ *
+ * @param  config Pointer to the OSC0 configuration structure.
+ */
+void CLOCK_InitOsc0(osc_config_t const *config);
+
+/*!
+ * @brief Deinitializes the OSC0.
+ *
+ * This function deinitializes the OSC0.
+ */
+void CLOCK_DeinitOsc0(void);
+
+/* @} */
+
+/*!
+ * @name External clock frequency
+ * @{
+ */
+
+/*!
+ * @brief Sets the XTAL0 frequency based on board settings.
+ *
+ * @param freq The XTAL0/EXTAL0 input clock frequency in Hz.
+ */
+static inline void CLOCK_SetXtal0Freq(uint32_t freq)
+{
+    g_xtal0Freq = freq;
+}
+
+/*!
+ * @brief Sets the XTAL32/RTC_CLKIN frequency based on board settings.
+ *
+ * @param freq The XTAL32/EXTAL32/RTC_CLKIN input clock frequency in Hz.
+ */
+static inline void CLOCK_SetXtal32Freq(uint32_t freq)
+{
+    g_xtal32Freq = freq;
+}
+/* @} */
+
+/*!
+ * @name IRCs frequency
+ * @{
+ */
+
+/*!
+ * @brief Set the Slow IRC frequency based on the trimmed value
+ *
+ * @param freq The Slow IRC frequency input clock frequency in Hz.
+ */
+void CLOCK_SetSlowIrcFreq(uint32_t freq);
+
+/*!
+ * @brief Set the Fast IRC frequency based on the trimmed value
+ *
+ * @param freq The Fast IRC frequency input clock frequency in Hz.
+ */
+void CLOCK_SetFastIrcFreq(uint32_t freq);
+/* @} */
+
+/*!
+ * @name MCG auto-trim machine.
+ * @{
+ */
+
+/*!
+ * @brief Auto trims the internal reference clock.
+ *
+ * This function trims the internal reference clock by using the external clock. If
+ * successful, it returns the kStatus_Success and the frequency after
+ * trimming is received in the parameter @p actualFreq. If an error occurs,
+ * the error code is returned.
+ *
+ * @param extFreq      External clock frequency, which should be a bus clock.
+ * @param desireFreq   Frequency to trim to.
+ * @param actualFreq   Actual frequency after trimming.
+ * @param atms         Trim fast or slow internal reference clock.
+ * @retval kStatus_Success ATM success.
+ * @retval kStatus_MCG_AtmBusClockInvalid The bus clock is not in allowed range for the ATM.
+ * @retval kStatus_MCG_AtmDesiredFreqInvalid MCGIRCLK could not be trimmed to the desired frequency.
+ * @retval kStatus_MCG_AtmIrcUsed Could not trim because MCGIRCLK is used as a bus clock source.
+ * @retval kStatus_MCG_AtmHardwareFail Hardware fails while trimming.
+ */
+status_t CLOCK_TrimInternalRefClk(uint32_t extFreq, uint32_t desireFreq, uint32_t *actualFreq, mcg_atm_select_t atms);
+/* @} */
+
+/*! @name MCG mode functions. */
+/*@{*/
+
+/*!
+ * @brief Gets the current MCG mode.
+ *
+ * This function checks the MCG registers and determines the current MCG mode.
+ *
+ * @return Current MCG mode or error code; See @ref mcg_mode_t.
+ */
+mcg_mode_t CLOCK_GetMode(void);
+
+/*!
+ * @brief Sets the MCG to FEI mode.
+ *
+ * This function sets the MCG to FEI mode. If setting to FEI mode fails
+ * from the current mode, this function returns an error.
+ *
+ * @param       dmx32  DMX32 in FEI mode.
+ * @param       drs The DCO range selection.
+ * @param       fllStableDelay Delay function to  ensure that the FLL is stable. Passing
+ *              NULL does not cause a delay.
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ * @note If @p dmx32 is set to kMCG_Dmx32Fine, the slow IRC must not be trimmed
+ * to a frequency above 32768 Hz.
+ */
+status_t CLOCK_SetFeiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
+
+/*!
+ * @brief Sets the MCG to FEE mode.
+ *
+ * This function sets the MCG to FEE mode. If setting to FEE mode fails
+ * from the current mode, this function returns an error.
+ *
+ * @param   frdiv  FLL reference clock divider setting, FRDIV.
+ * @param   dmx32  DMX32 in FEE mode.
+ * @param   drs    The DCO range selection.
+ * @param   fllStableDelay Delay function to make sure FLL is stable. Passing
+ *          NULL does not cause a delay.
+ *
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ */
+status_t CLOCK_SetFeeMode(uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
+
+/*!
+ * @brief Sets the MCG to FBI mode.
+ *
+ * This function sets the MCG to FBI mode. If setting to FBI mode fails
+ * from the current mode, this function returns an error.
+ *
+ * @param  dmx32  DMX32 in FBI mode.
+ * @param  drs  The DCO range selection.
+ * @param  fllStableDelay Delay function to make sure FLL is stable. If the FLL
+ *         is not used in FBI mode, this parameter can be NULL. Passing
+ *         NULL does not cause a delay.
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ * @note If @p dmx32 is set to kMCG_Dmx32Fine, the slow IRC must not be trimmed
+ * to frequency above 32768 Hz.
+ */
+status_t CLOCK_SetFbiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
+
+/*!
+ * @brief Sets the MCG to FBE mode.
+ *
+ * This function sets the MCG to FBE mode. If setting to FBE mode fails
+ * from the current mode, this function returns an error.
+ *
+ * @param   frdiv  FLL reference clock divider setting, FRDIV.
+ * @param   dmx32  DMX32 in FBE mode.
+ * @param   drs    The DCO range selection.
+ * @param   fllStableDelay Delay function to make sure FLL is stable. If the FLL
+ *          is not used in FBE mode, this parameter can be NULL. Passing NULL
+ *          does not cause a delay.
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ */
+status_t CLOCK_SetFbeMode(uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
+
+/*!
+ * @brief Sets the MCG to BLPI mode.
+ *
+ * This function sets the MCG to BLPI mode. If setting to BLPI mode fails
+ * from the current mode, this function returns an error.
+ *
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ */
+status_t CLOCK_SetBlpiMode(void);
+
+/*!
+ * @brief Sets the MCG to BLPE mode.
+ *
+ * This function sets the MCG to BLPE mode. If setting to BLPE mode fails
+ * from the current mode, this function returns an error.
+ *
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ */
+status_t CLOCK_SetBlpeMode(void);
+
+/*!
+ * @brief Sets the MCG to PBE mode.
+ *
+ * This function sets the MCG to PBE mode. If setting to PBE mode fails
+ * from the current mode, this function returns an error.
+ *
+ * @param   pllcs  The PLL selection, PLLCS.
+ * @param   config Pointer to the PLL configuration.
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ *
+ * @note
+ * 1. The parameter \c pllcs selects the PLL. For platforms with
+ * only one PLL, the parameter pllcs is kept for interface compatibility.
+ * 2. The parameter \c config is the PLL configuration structure. On some
+ * platforms,  it is possible to choose the external PLL directly, which renders the
+ * configuration structure not necessary. In this case, pass in NULL.
+ * For example: CLOCK_SetPbeMode(kMCG_OscselOsc, kMCG_PllClkSelExtPll, NULL);
+ */
+status_t CLOCK_SetPbeMode(mcg_pll_clk_select_t pllcs, mcg_pll_config_t const *config);
+
+/*!
+ * @brief Sets the MCG to PEE mode.
+ *
+ * This function sets the MCG to PEE mode.
+ *
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ *
+ * @note This function only changes the CLKS to use the PLL/FLL output. If the
+ *       PRDIV/VDIV are different than in the PBE mode, set them up
+ *       in PBE mode and wait. When the clock is stable, switch to PEE mode.
+ */
+status_t CLOCK_SetPeeMode(void);
+
+/*!
+ * @brief Switches the MCG to FBE mode from the external mode.
+ *
+ * This function switches the MCG from external modes (PEE/PBE/BLPE/FEE) to the FBE mode quickly.
+ * The external clock is used as the system clock source and PLL is disabled. However,
+ * the FLL settings are not configured. This is a lite function with a small code size, which is useful
+ * during the mode switch. For example, to switch from PEE mode to FEI mode:
+ *
+ * @code
+ * CLOCK_ExternalModeToFbeModeQuick();
+ * CLOCK_SetFeiMode(...);
+ * @endcode
+ *
+ * @retval kStatus_Success Switched successfully.
+ * @retval kStatus_MCG_ModeInvalid If the current mode is not an external mode, do not call this function.
+ */
+status_t CLOCK_ExternalModeToFbeModeQuick(void);
+
+/*!
+ * @brief Switches the MCG to FBI mode from internal modes.
+ *
+ * This function switches the MCG from internal modes (PEI/PBI/BLPI/FEI) to the FBI mode quickly.
+ * The MCGIRCLK is used as the system clock source and PLL is disabled. However,
+ * FLL settings are not configured. This is a lite function with a small code size, which is useful
+ * during the mode switch. For example, to switch from PEI mode to FEE mode:
+ *
+ * @code
+ * CLOCK_InternalModeToFbiModeQuick();
+ * CLOCK_SetFeeMode(...);
+ * @endcode
+ *
+ * @retval kStatus_Success Switched successfully.
+ * @retval kStatus_MCG_ModeInvalid If the current mode is not an internal mode, do not call this function.
+ */
+status_t CLOCK_InternalModeToFbiModeQuick(void);
+
+/*!
+ * @brief Sets the MCG to FEI mode during system boot up.
+ *
+ * This function sets the MCG to FEI mode from the reset mode. It can also be used to
+ * set up MCG during system boot up.
+ *
+ * @param  dmx32  DMX32 in FEI mode.
+ * @param  drs The DCO range selection.
+ * @param  fllStableDelay Delay function to ensure that the FLL is stable.
+ *
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ * @note If @p dmx32 is set to kMCG_Dmx32Fine, the slow IRC must not be trimmed
+ * to frequency above 32768 Hz.
+ */
+status_t CLOCK_BootToFeiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
+
+/*!
+ * @brief Sets the MCG to FEE mode during system bootup.
+ *
+ * This function sets MCG to FEE mode from the reset mode. It can also be used to
+ * set up the MCG during system boot up.
+ *
+ * @param   oscsel OSC clock select, OSCSEL.
+ * @param   frdiv  FLL reference clock divider setting, FRDIV.
+ * @param   dmx32  DMX32 in FEE mode.
+ * @param   drs    The DCO range selection.
+ * @param   fllStableDelay Delay function to ensure that the FLL is stable.
+ *
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ */
+status_t CLOCK_BootToFeeMode(
+    mcg_oscsel_t oscsel, uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
+
+/*!
+ * @brief Sets the MCG to BLPI mode during system boot up.
+ *
+ * This function sets the MCG to BLPI mode from the reset mode. It can also be used to
+ * set up the MCG during system boot up.
+ *
+ * @param  fcrdiv Fast IRC divider, FCRDIV.
+ * @param  ircs   The internal reference clock to select, IRCS.
+ * @param  ircEnableMode  The MCGIRCLK enable mode, OR'ed value of @ref _mcg_irclk_enable_mode.
+ *
+ * @retval kStatus_MCG_SourceUsed Could not change MCGIRCLK setting.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ */
+status_t CLOCK_BootToBlpiMode(uint8_t fcrdiv, mcg_irc_mode_t ircs, uint8_t ircEnableMode);
+
+/*!
+ * @brief Sets the MCG to BLPE mode during system boot up.
+ *
+ * This function sets the MCG to BLPE mode from the reset mode. It can also be used to
+ * set up the MCG during system boot up.
+ *
+ * @param  oscsel OSC clock select, MCG_C7[OSCSEL].
+ *
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ */
+status_t CLOCK_BootToBlpeMode(mcg_oscsel_t oscsel);
+
+/*!
+ * @brief Sets the MCG to PEE mode during system boot up.
+ *
+ * This function sets the MCG to PEE mode from reset mode. It can also be used to
+ * set up the MCG during system boot up.
+ *
+ * @param   oscsel OSC clock select, MCG_C7[OSCSEL].
+ * @param   pllcs  The PLL selection, PLLCS.
+ * @param   config Pointer to the PLL configuration.
+ *
+ * @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
+ * @retval kStatus_Success Switched to the target mode successfully.
+ */
+status_t CLOCK_BootToPeeMode(mcg_oscsel_t oscsel, mcg_pll_clk_select_t pllcs, mcg_pll_config_t const *config);
+
+/*!
+ * @brief Sets the MCG to a target mode.
+ *
+ * This function sets MCG to a target mode defined by the configuration
+ * structure. If switching to the target mode fails, this function
+ * chooses the correct path.
+ *
+ * @param  config Pointer to the target MCG mode configuration structure.
+ * @return Return kStatus_Success if switched successfully; Otherwise, it returns an error code #_mcg_status.
+ *
+ * @note If the external clock is used in the target mode, ensure that it is
+ * enabled. For example, if the OSC0 is used, set up OSC0 correctly before calling this
+ * function.
+ */
+status_t CLOCK_SetMcgConfig(mcg_config_t const *config);
+
+/*@}*/
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus */
+
+/*! @} */
+
+#endif /* _FSL_CLOCK_H_ */