1 files changed, 455 insertions, 0 deletions

diff --git a/lib/chibios-contrib/ext/mcux-sdk/devices/K32L2A31A/project_template/clock_config.c b/lib/chibios-contrib/ext/mcux-sdk/devices/K32L2A31A/project_template/clock_config.c
new file mode 100644
index 000000000..34cdf1881
--- /dev/null
+++ b/lib/chibios-contrib/ext/mcux-sdk/devices/K32L2A31A/project_template/clock_config.c
@@ -0,0 +1,455 @@
+/*
+ * Copyright 2019 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/***********************************************************************************************************************
+ * This file was generated by the MCUXpresso Config Tools. Any manual edits made to this file
+ * will be overwritten if the respective MCUXpresso Config Tools is used to update this file.
+ **********************************************************************************************************************/
+/*
+ * How to setup clock using clock driver functions:
+ *
+ * 1. Call CLOCK_InitXXX() to configure corresponding SCG clock source.
+ *    Note: The clock could not be set when it is being used as system clock.
+ *    In default out of reset, the CPU is clocked from FIRC(IRC48M),
+ *    so before setting FIRC, change to use another avaliable clock source.
+ *
+ * 2. Call CLOCK_SetXtal0Freq() to set XTAL0 frequency based on board settings.
+ *
+ * 3. Call CLOCK_SetXxxModeSysClkConfig() to set SCG mode for Xxx run mode.
+ *    Wait until the system clock source is changed to target source.
+ *
+ * 4. If power mode change is needed, call SMC_SetPowerModeProtection() to allow
+ *    corresponding power mode and SMC_SetPowerModeXxx() to change to Xxx mode.
+ *    Supported run mode and clock restrictions could be found in Reference Manual.
+ */
+
+/* clang-format off */
+/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
+!!GlobalInfo
+product: Clocks v6.0
+processor: K32L2A31xxxxA
+package_id: K32L2A31VLL1A
+mcu_data: ksdk2_0
+processor_version: 0.0.0
+ * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
+/* clang-format on */
+
+#include "fsl_smc.h"
+#include "clock_config.h"
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+#define SCG_CLKOUTCNFG_SIRC 2U /*!< SCG CLKOUT clock select: Slow IRC */
+#define SCG_SOSC_DISABLE 0U    /*!< System OSC disabled */
+#define SCG_SPLL_DISABLE 0U    /*!< System PLL disabled */
+#define SCG_SYS_OSC_CAP_0P 0U  /*!< Oscillator 0pF capacitor load */
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+/* System clock frequency. */
+extern uint32_t SystemCoreClock;
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : CLOCK_CONFIG_SetScgOutSel
+ * Description   : Set the SCG clock out select (CLKOUTSEL).
+ * Param setting : The selected clock source.
+ *
+ *END**************************************************************************/
+static void CLOCK_CONFIG_SetScgOutSel(uint8_t setting)
+{
+    SCG->CLKOUTCNFG = SCG_CLKOUTCNFG_CLKOUTSEL(setting);
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : CLOCK_CONFIG_FircSafeConfig
+ * Description   : This function is used to safely configure FIRC clock.
+ *                 In default out of reset, the CPU is clocked from FIRC(IRC48M).
+ *                 Before setting FIRC, change to use SIRC as system clock,
+ *                 then configure FIRC. After FIRC is set, change back to use FIRC
+ *                 in case SIRC need to be configured.
+ * Param fircConfig  : FIRC configuration.
+ *
+ *END**************************************************************************/
+static void CLOCK_CONFIG_FircSafeConfig(const scg_firc_config_t *fircConfig)
+{
+    scg_sys_clk_config_t curConfig;
+    const scg_sirc_config_t scgSircConfig       = {.enableMode = kSCG_SircEnable,
+                                             .div1       = kSCG_AsyncClkDisable,
+                                             .div3       = kSCG_AsyncClkDivBy2,
+                                             .range      = kSCG_SircRangeHigh};
+    scg_sys_clk_config_t sysClkSafeConfigSource = {
+        .divSlow = kSCG_SysClkDivBy4, /* Slow clock divider */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+        .reserved1 = 0,
+        .reserved2 = 0,
+        .reserved3 = 0,
+#endif
+        .divCore = kSCG_SysClkDivBy1, /* Core clock divider */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+        .reserved4 = 0,
+#endif
+        .src = kSCG_SysClkSrcSirc, /* System clock source */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+        .reserved5 = 0,
+#endif
+    };
+    /* Init Sirc. */
+    CLOCK_InitSirc(&scgSircConfig);
+    /* Change to use SIRC as system clock source to prepare to change FIRCCFG register. */
+    CLOCK_SetRunModeSysClkConfig(&sysClkSafeConfigSource);
+    /* Wait for clock source switch finished. */
+    do
+    {
+        CLOCK_GetCurSysClkConfig(&curConfig);
+    } while (curConfig.src != sysClkSafeConfigSource.src);
+
+    /* Init Firc. */
+    CLOCK_InitFirc(fircConfig);
+    /* Change back to use FIRC as system clock source in order to configure SIRC if needed. */
+    sysClkSafeConfigSource.src = kSCG_SysClkSrcFirc;
+    CLOCK_SetRunModeSysClkConfig(&sysClkSafeConfigSource);
+    /* Wait for clock source switch finished. */
+    do
+    {
+        CLOCK_GetCurSysClkConfig(&curConfig);
+    } while (curConfig.src != sysClkSafeConfigSource.src);
+}
+
+/*******************************************************************************
+ ************************ BOARD_InitBootClocks function ************************
+ ******************************************************************************/
+void BOARD_InitBootClocks(void)
+{
+    BOARD_BootClockRUN();
+}
+
+/*******************************************************************************
+ ********************** Configuration BOARD_BootClockRUN ***********************
+ ******************************************************************************/
+/* clang-format off */
+/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
+!!Configuration
+name: BOARD_BootClockRUN
+called_from_default_init: true
+outputs:
+- {id: Core_clock.outFreq, value: 48 MHz}
+- {id: LPO_clock.outFreq, value: 1 kHz}
+- {id: SIRC_CLK.outFreq, value: 8 MHz}
+- {id: Slow_clock.outFreq, value: 24 MHz}
+- {id: System_clock.outFreq, value: 48 MHz}
+ * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
+/* clang-format on */
+
+/*******************************************************************************
+ * Variables for BOARD_BootClockRUN configuration
+ ******************************************************************************/
+const scg_sys_clk_config_t g_sysClkConfig_BOARD_BootClockRUN = {
+    .divSlow = kSCG_SysClkDivBy2, /* Slow Clock Divider: divided by 2 */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+    .reserved1 = 0,
+    .reserved2 = 0,
+    .reserved3 = 0,
+#endif
+    .divCore = kSCG_SysClkDivBy1, /* Core Clock Divider: divided by 1 */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+    .reserved4 = 0,
+#endif
+    .src = kSCG_SysClkSrcFirc, /* Fast IRC is selected as System Clock Source */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+    .reserved5 = 0,
+#endif
+};
+const scg_sosc_config_t g_scgSysOscConfig_BOARD_BootClockRUN = {
+    .freq        = 0U,                        /* System Oscillator frequency: 0Hz */
+    .enableMode  = SCG_SOSC_DISABLE,          /* System OSC disabled */
+    .monitorMode = kSCG_SysOscMonitorDisable, /* Monitor disabled */
+    .div1        = kSCG_AsyncClkDisable,      /* System OSC Clock Divider 1: Clock output is disabled */
+    .div3        = kSCG_AsyncClkDisable,      /* System OSC Clock Divider 3: Clock output is disabled */
+    .capLoad     = SCG_SYS_OSC_CAP_0P,        /* Oscillator capacity load: 0pF */
+    .workMode    = kSCG_SysOscModeExt,        /* Use external clock */
+};
+const scg_sirc_config_t g_scgSircConfig_BOARD_BootClockRUN = {
+    .enableMode = kSCG_SircEnable | kSCG_SircEnableInLowPower, /* Enable SIRC clock, Enable SIRC in low power mode */
+    .div1       = kSCG_AsyncClkDisable,                        /* Slow IRC Clock Divider 1: Clock output is disabled */
+    .div3       = kSCG_AsyncClkDisable,                        /* Slow IRC Clock Divider 3: Clock output is disabled */
+    .range      = kSCG_SircRangeHigh,                          /* Slow IRC high range clock (8 MHz) */
+};
+const scg_firc_config_t g_scgFircConfig_BOARD_BootClockRUN = {
+    .enableMode = kSCG_FircEnable,      /* Enable FIRC clock */
+    .div1       = kSCG_AsyncClkDisable, /* Fast IRC Clock Divider 1: Clock output is disabled */
+    .div3       = kSCG_AsyncClkDisable, /* Fast IRC Clock Divider 3: Clock output is disabled */
+    .range      = kSCG_FircRange48M,    /* Fast IRC is trimmed to 48MHz */
+    .trimConfig = NULL,                 /* Fast IRC Trim disabled */
+};
+const scg_spll_config_t g_scgSysPllConfig_BOARD_BootClockRUN = {
+    .enableMode  = SCG_SPLL_DISABLE,          /* System PLL disabled */
+    .monitorMode = kSCG_SysPllMonitorDisable, /* Monitor disabled */
+    .div1        = kSCG_AsyncClkDisable,      /* System PLL Clock Divider 1: Clock output is disabled */
+    .div3        = kSCG_AsyncClkDisable,      /* System PLL Clock Divider 3: Clock output is disabled */
+    .src         = kSCG_SysPllSrcSysOsc,      /* System PLL clock source is System OSC */
+    .prediv      = 0,                         /* Divided by 1 */
+    .mult        = 0,                         /* Multiply Factor is 16 */
+};
+/*******************************************************************************
+ * Code for BOARD_BootClockRUN configuration
+ ******************************************************************************/
+void BOARD_BootClockRUN(void)
+{
+    scg_sys_clk_config_t curConfig;
+
+    /* Init FIRC. */
+    CLOCK_CONFIG_FircSafeConfig(&g_scgFircConfig_BOARD_BootClockRUN);
+    /* Init SIRC. */
+    CLOCK_InitSirc(&g_scgSircConfig_BOARD_BootClockRUN);
+    /* Set SCG to FIRC mode. */
+    CLOCK_SetRunModeSysClkConfig(&g_sysClkConfig_BOARD_BootClockRUN);
+    /* Wait for clock source switch finished. */
+    do
+    {
+        CLOCK_GetCurSysClkConfig(&curConfig);
+    } while (curConfig.src != g_sysClkConfig_BOARD_BootClockRUN.src);
+    /* Set SystemCoreClock variable. */
+    SystemCoreClock = BOARD_BOOTCLOCKRUN_CORE_CLOCK;
+}
+
+/*******************************************************************************
+ ********************* Configuration BOARD_BootClockHSRUN **********************
+ ******************************************************************************/
+/* clang-format off */
+/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
+!!Configuration
+name: BOARD_BootClockHSRUN
+outputs:
+- {id: CLKOUT.outFreq, value: 8 MHz}
+- {id: Core_clock.outFreq, value: 96 MHz, locked: true, accuracy: '0.001'}
+- {id: FIRCDIV1_CLK.outFreq, value: 48 MHz}
+- {id: FIRCDIV3_CLK.outFreq, value: 48 MHz}
+- {id: LPO_clock.outFreq, value: 1 kHz}
+- {id: OSC32KCLK.outFreq, value: 32.768 kHz}
+- {id: PLLDIV1_CLK.outFreq, value: 96 MHz}
+- {id: PLLDIV3_CLK.outFreq, value: 96 MHz}
+- {id: SIRCDIV1_CLK.outFreq, value: 8 MHz}
+- {id: SIRCDIV3_CLK.outFreq, value: 8 MHz}
+- {id: SIRC_CLK.outFreq, value: 8 MHz}
+- {id: SOSCDIV1_CLK.outFreq, value: 32.768 kHz}
+- {id: SOSCDIV3_CLK.outFreq, value: 32.768 kHz}
+- {id: SOSCER_CLK.outFreq, value: 32.768 kHz}
+- {id: SOSC_CLK.outFreq, value: 32.768 kHz}
+- {id: Slow_clock.outFreq, value: 24 MHz, locked: true, accuracy: '0.001'}
+- {id: System_clock.outFreq, value: 96 MHz}
+settings:
+- {id: SCGMode, value: SPLL}
+- {id: powerMode, value: HSRUN}
+- {id: CLKOUTConfig, value: 'yes'}
+- {id: SCG.DIVSLOW.scale, value: '4'}
+- {id: SCG.FIRCDIV1.scale, value: '1', locked: true}
+- {id: SCG.FIRCDIV3.scale, value: '1', locked: true}
+- {id: SCG.PREDIV.scale, value: '4'}
+- {id: SCG.SCSSEL.sel, value: SCG.SPLL_DIV2_CLK}
+- {id: SCG.SIRCDIV1.scale, value: '1', locked: true}
+- {id: SCG.SIRCDIV3.scale, value: '1', locked: true}
+- {id: SCG.SOSCDIV1.scale, value: '1', locked: true}
+- {id: SCG.SOSCDIV3.scale, value: '1', locked: true}
+- {id: SCG.SPLLDIV1.scale, value: '1', locked: true}
+- {id: SCG.SPLLDIV3.scale, value: '1', locked: true}
+- {id: SCG.SPLLSRCSEL.sel, value: SCG.FIRC}
+- {id: SCG_SOSCCFG_OSC_MODE_CFG, value: ModeOscLowPower}
+- {id: SCG_SOSCCSR_SOSCEN_CFG, value: Enabled}
+- {id: SCG_SOSCCSR_SOSCERCLKEN_CFG, value: Enabled}
+- {id: SCG_SPLLCSR_SPLLEN_CFG, value: Enabled}
+sources:
+- {id: SCG.SOSC.outFreq, value: 32.768 kHz, enabled: true}
+ * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
+/* clang-format on */
+
+/*******************************************************************************
+ * Variables for BOARD_BootClockHSRUN configuration
+ ******************************************************************************/
+const scg_sys_clk_config_t g_sysClkConfig_BOARD_BootClockHSRUN = {
+    .divSlow = kSCG_SysClkDivBy4, /* Slow Clock Divider: divided by 4 */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+    .reserved1 = 0,
+    .reserved2 = 0,
+    .reserved3 = 0,
+#endif
+    .divCore = kSCG_SysClkDivBy1, /* Core Clock Divider: divided by 1 */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+    .reserved4 = 0,
+#endif
+    .src = kSCG_SysClkSrcSysPll, /* System PLL is selected as System Clock Source */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+    .reserved5 = 0,
+#endif
+};
+const scg_sosc_config_t g_scgSysOscConfig_BOARD_BootClockHSRUN = {
+    .freq        = 32768U,                                     /* System Oscillator frequency: 32768Hz */
+    .enableMode  = kSCG_SysOscEnable | kSCG_SysOscEnableErClk, /* Enable System OSC clock, Enable OSCERCLK */
+    .monitorMode = kSCG_SysOscMonitorDisable,                  /* Monitor disabled */
+    .div1        = kSCG_AsyncClkDivBy1,                        /* System OSC Clock Divider 1: divided by 1 */
+    .div3        = kSCG_AsyncClkDivBy1,                        /* System OSC Clock Divider 3: divided by 1 */
+    .capLoad     = SCG_SYS_OSC_CAP_0P,                         /* Oscillator capacity load: 0pF */
+    .workMode    = kSCG_SysOscModeOscLowPower,                 /* Oscillator low power */
+};
+const scg_sirc_config_t g_scgSircConfig_BOARD_BootClockHSRUN = {
+    .enableMode = kSCG_SircEnable | kSCG_SircEnableInLowPower, /* Enable SIRC clock, Enable SIRC in low power mode */
+    .div1       = kSCG_AsyncClkDivBy1,                         /* Slow IRC Clock Divider 1: divided by 1 */
+    .div3       = kSCG_AsyncClkDivBy1,                         /* Slow IRC Clock Divider 3: divided by 1 */
+    .range      = kSCG_SircRangeHigh,                          /* Slow IRC high range clock (8 MHz) */
+};
+const scg_firc_config_t g_scgFircConfig_BOARD_BootClockHSRUN = {
+    .enableMode = kSCG_FircEnable,     /* Enable FIRC clock */
+    .div1       = kSCG_AsyncClkDivBy1, /* Fast IRC Clock Divider 1: divided by 1 */
+    .div3       = kSCG_AsyncClkDivBy1, /* Fast IRC Clock Divider 3: divided by 1 */
+    .range      = kSCG_FircRange48M,   /* Fast IRC is trimmed to 48MHz */
+    .trimConfig = NULL,                /* Fast IRC Trim disabled */
+};
+const scg_spll_config_t g_scgSysPllConfig_BOARD_BootClockHSRUN = {
+    .enableMode  = kSCG_SysPllEnable,         /* Enable SPLL clock */
+    .monitorMode = kSCG_SysPllMonitorDisable, /* Monitor disabled */
+    .div1        = kSCG_AsyncClkDivBy1,       /* System PLL Clock Divider 1: divided by 1 */
+    .div3        = kSCG_AsyncClkDivBy1,       /* System PLL Clock Divider 3: divided by 1 */
+    .src         = kSCG_SysPllSrcFirc,        /* System PLL clock source is Fast IRC */
+    .prediv      = 3,                         /* Divided by 4 */
+    .mult        = 0,                         /* Multiply Factor is 16 */
+};
+/*******************************************************************************
+ * Code for BOARD_BootClockHSRUN configuration
+ ******************************************************************************/
+void BOARD_BootClockHSRUN(void)
+{
+    scg_sys_clk_config_t curConfig;
+
+    /* Init SOSC according to board configuration. */
+    CLOCK_InitSysOsc(&g_scgSysOscConfig_BOARD_BootClockHSRUN);
+    /* Set the XTAL0 frequency based on board settings. */
+    CLOCK_SetXtal0Freq(g_scgSysOscConfig_BOARD_BootClockHSRUN.freq);
+    /* Init FIRC. */
+    CLOCK_CONFIG_FircSafeConfig(&g_scgFircConfig_BOARD_BootClockHSRUN);
+    /* Init SIRC. */
+    CLOCK_InitSirc(&g_scgSircConfig_BOARD_BootClockHSRUN);
+    /* Init SysPll. */
+    CLOCK_InitSysPll(&g_scgSysPllConfig_BOARD_BootClockHSRUN);
+    /* Set HSRUN power mode. */
+    SMC_SetPowerModeProtection(SMC, kSMC_AllowPowerModeAll);
+    SMC_SetPowerModeHsrun(SMC);
+    while (SMC_GetPowerModeState(SMC) != kSMC_PowerStateHsrun)
+    {
+    }
+
+    /* Set SCG to SPLL mode. */
+    CLOCK_SetHsrunModeSysClkConfig(&g_sysClkConfig_BOARD_BootClockHSRUN);
+    /* Wait for clock source switch finished. */
+    do
+    {
+        CLOCK_GetCurSysClkConfig(&curConfig);
+    } while (curConfig.src != g_sysClkConfig_BOARD_BootClockHSRUN.src);
+    /* Set SystemCoreClock variable. */
+    SystemCoreClock = BOARD_BOOTCLOCKHSRUN_CORE_CLOCK;
+    /* Set SCG CLKOUT selection. */
+    CLOCK_CONFIG_SetScgOutSel(SCG_CLKOUTCNFG_SIRC);
+}
+
+/*******************************************************************************
+ ********************* Configuration BOARD_BootClockVLPR ***********************
+ ******************************************************************************/
+/* clang-format off */
+/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
+!!Configuration
+name: BOARD_BootClockVLPR
+outputs:
+- {id: Core_clock.outFreq, value: 8 MHz, locked: true, accuracy: '0.001'}
+- {id: LPO_clock.outFreq, value: 1 kHz}
+- {id: SIRC_CLK.outFreq, value: 8 MHz}
+- {id: Slow_clock.outFreq, value: 1 MHz, locked: true, accuracy: '0.001'}
+- {id: System_clock.outFreq, value: 8 MHz}
+settings:
+- {id: SCGMode, value: SIRC}
+- {id: powerMode, value: VLPR}
+- {id: SCG.DIVSLOW.scale, value: '8'}
+- {id: SCG.SCSSEL.sel, value: SCG.SIRC}
+- {id: SCG_FIRCCSR_FIRCLPEN_CFG, value: Enabled}
+sources:
+- {id: SCG.SOSC.outFreq, value: 32.768 kHz, enabled: true}
+ * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
+/* clang-format on */
+
+/*******************************************************************************
+ * Variables for BOARD_BootClockVLPR configuration
+ ******************************************************************************/
+const scg_sys_clk_config_t g_sysClkConfig_BOARD_BootClockVLPR = {
+    .divSlow = kSCG_SysClkDivBy8, /* Slow Clock Divider: divided by 8 */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+    .reserved1 = 0,
+    .reserved2 = 0,
+    .reserved3 = 0,
+#endif
+    .divCore = kSCG_SysClkDivBy1, /* Core Clock Divider: divided by 1 */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+    .reserved4 = 0,
+#endif
+    .src = kSCG_SysClkSrcSirc, /* Slow IRC is selected as System Clock Source */
+#if FSL_CLOCK_DRIVER_VERSION < MAKE_VERSION(2, 1, 1)
+    .reserved5 = 0,
+#endif
+};
+const scg_sosc_config_t g_scgSysOscConfig_BOARD_BootClockVLPR = {
+    .freq        = 0U,                        /* System Oscillator frequency: 0Hz */
+    .enableMode  = SCG_SOSC_DISABLE,          /* System OSC disabled */
+    .monitorMode = kSCG_SysOscMonitorDisable, /* Monitor disabled */
+    .div1        = kSCG_AsyncClkDisable,      /* System OSC Clock Divider 1: Clock output is disabled */
+    .div3        = kSCG_AsyncClkDisable,      /* System OSC Clock Divider 3: Clock output is disabled */
+    .capLoad     = SCG_SYS_OSC_CAP_0P,        /* Oscillator capacity load: 0pF */
+    .workMode    = kSCG_SysOscModeExt,        /* Use external clock */
+};
+const scg_sirc_config_t g_scgSircConfig_BOARD_BootClockVLPR = {
+    .enableMode = kSCG_SircEnable | kSCG_SircEnableInLowPower, /* Enable SIRC clock, Enable SIRC in low power mode */
+    .div1       = kSCG_AsyncClkDisable,                        /* Slow IRC Clock Divider 1: Clock output is disabled */
+    .div3       = kSCG_AsyncClkDisable,                        /* Slow IRC Clock Divider 3: Clock output is disabled */
+    .range      = kSCG_SircRangeHigh,                          /* Slow IRC high range clock (8 MHz) */
+};
+const scg_firc_config_t g_scgFircConfig_BOARD_BootClockVLPR = {
+    .enableMode = kSCG_FircEnable | kSCG_FircEnableInLowPower, /* Enable FIRC clock, Enable FIRC in low power mode */
+    .div1       = kSCG_AsyncClkDisable,                        /* Fast IRC Clock Divider 1: Clock output is disabled */
+    .div3       = kSCG_AsyncClkDisable,                        /* Fast IRC Clock Divider 3: Clock output is disabled */
+    .range      = kSCG_FircRange48M,                           /* Fast IRC is trimmed to 48MHz */
+    .trimConfig = NULL,                                        /* Fast IRC Trim disabled */
+};
+const scg_spll_config_t g_scgSysPllConfig_BOARD_BootClockVLPR = {
+    .enableMode  = SCG_SPLL_DISABLE,          /* System PLL disabled */
+    .monitorMode = kSCG_SysPllMonitorDisable, /* Monitor disabled */
+    .div1        = kSCG_AsyncClkDisable,      /* System PLL Clock Divider 1: Clock output is disabled */
+    .div3        = kSCG_AsyncClkDisable,      /* System PLL Clock Divider 3: Clock output is disabled */
+    .src         = kSCG_SysPllSrcSysOsc,      /* System PLL clock source is System OSC */
+    .prediv      = 0,                         /* Divided by 1 */
+    .mult        = 0,                         /* Multiply Factor is 16 */
+};
+/*******************************************************************************
+ * Code for BOARD_BootClockVLPR configuration
+ ******************************************************************************/
+void BOARD_BootClockVLPR(void)
+{
+    /* Init FIRC. */
+    CLOCK_CONFIG_FircSafeConfig(&g_scgFircConfig_BOARD_BootClockVLPR);
+    /* Init SIRC. */
+    CLOCK_InitSirc(&g_scgSircConfig_BOARD_BootClockVLPR);
+    /* Allow SMC all power modes. */
+    SMC_SetPowerModeProtection(SMC, kSMC_AllowPowerModeAll);
+    /* Set VLPR power mode. */
+    SMC_SetPowerModeVlpr(SMC);
+    while (SMC_GetPowerModeState(SMC) != kSMC_PowerStateVlpr)
+    {
+    }
+    /* Set SystemCoreClock variable. */
+    SystemCoreClock = BOARD_BOOTCLOCKVLPR_CORE_CLOCK;
+}