Kinetis MCG, CRC, and OSC header files

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3860 42af7a65-404d-4744-a932-0658087f49c3

3 files changed, 384 insertions, 0 deletions

diff --git a/nuttx/arch/arm/src/kinetis/kinetis_crc.h b/nuttx/arch/arm/src/kinetis/kinetis_crc.h
new file mode 100644
index 000000000..6b309533b
--- /dev/null
+++ b/nuttx/arch/arm/src/kinetis/kinetis_crc.h
@@ -0,0 +1,114 @@
+/************************************************************************************
+ * arch/arm/src/kinetis/kinetis_crc.h
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_KINETIS_KINETIS_CRC_H
+#define __ARCH_ARM_SRC_KINETIS_KINETIS_CRC_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include "chip.h"
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Register Offsets *****************************************************************/
+
+#define KINETIS_CRC_CRC_OFFSET    0x0000 /* CRC Data Register */
+#define KINETIS_CRC_GPOLY_OFFSET  0x0004 /* CRC Polynomial Register */
+#define KINETIS_CRC_CTRL_OFFSET   0x0008 /* CRC Control Register */
+
+/* Register Addresses ***************************************************************/
+
+#define KINETIS_CRC_CRC           (KINETIS_CRC_BASE+KINETIS_CRC_CRC_OFFSET)
+#define KINETIS_CRC_GPOLY         (KINETIS_CRC_BASE+KINETIS_CRC_GPOLY_OFFSET)
+#define KINETIS_CRC_CTRL          (KINETIS_CRC_BASE+KINETIS_CRC_CTRL_OFFSET)
+
+/* Register Bit Definitions *********************************************************/
+
+/* CRC Data Register (32-bit) */
+
+#define CRC_CRC_LL_SHIFT          (0)       /* Bits 0-7: CRC Low Lower Byte */
+#define CRC_CRC_LL_MASK           (0xff << CRC_CRC_LL_SHIFT)
+#define CRC_CRC_LU_SHIFT          (8)       /* Bits 8-15: CRC Low Upper Byte */
+#define CRC_CRC_LU_MASK           (0xff << CRC_CRC_LU_SHIFT)
+#define CRC_CRC_HL_SHIFT          (16)      /* Bits 16-23: CRC High Lower Byte */
+#define CRC_CRC_HL_MASK           (0xff << CRC_CRC_HL_SHIFT)
+#define CRC_CRC_HU_SHIFT          (24)      /* Bits 24-31: CRC High Upper Byte */
+#define CRC_CRC_HU_MASK           (0xff << CRC_CRC_HU_SHIFT)
+
+/* CRC Polynomial Register */
+
+#define CRC_GPOLY_LOW_SHIFT       (0)       /* Bits 0-15: Low polynominal half-word */
+#define CRC_GPOLY_LOW_MASK        (0xffff << CRC_GPOLY_LOW_SHIFT)
+#define CRC_GPOLY_HIGH_SHIFT      (16)      /* Bits 16-31: High polynominal half-word */
+#define CRC_GPOLY_HIGH_MASK       (0xffff << CRC_GPOLY_HIGH_SHIFT)
+
+/* CRC Control Register */
+                                            /* Bits 0-23: Reserved */
+#define CRC_CTRL_TCRC             (1 << 24) /* Bit 24: Width of CRC protocol */
+#define CRC_CTRL_WAS              (1 << 25) /* Bit 25: Write CRC data register as seed */
+#define CRC_CTRL_FXOR             (1 << 26) /* Bit 26: Complement Read of CRC data register */
+                                            /* Bit 27: Reserved */
+#define CRC_CTRL_TOTR_SHIFT       (28)      /* Bits 28-29: Type of Transpose for Read */
+#define CRC_CTRL_TOTR_MASK        (3 << CRC_CTRL_TOTR_SHIFT)
+#  define CRC_CTRL_TOTR_NONE      (0 << CRC_CTRL_TOTR_SHIFT) /* No transposition */
+#  define CRC_CTRL_TOTR_BITS      (1 << CRC_CTRL_TOTR_SHIFT) /* Bits transposed; bytes are not */
+#  define CRC_CTRL_TOTR_BOTH      (2 << CRC_CTRL_TOTR_SHIFT) /* Both bits bytes and bytes transposed */
+#  define CRC_CTRL_TOTR_BYTES     (3 << CRC_CTRL_TOTR_SHIFT) /* Bytes transposed; bits in byte are not */
+#define CRC_CTRL_TOT_SHIFT        (30)      /* Bits 30-31: Type of Transpose for Writes */
+#define CRC_CTRL_TOT_MASK         (3 << CRC_CTRL_TOT_SHIFT)
+#  define CRC_CTRL_TOT_NONE       (0 << CRC_CTRL_TOT_SHIFT) /* No transposition */
+#  define CRC_CTRL_TOT_BITS       (1 << CRC_CTRL_TOT_SHIFT) /* Bits transposed; bytes are not */
+#  define CRC_CTRL_TOT_BOTH       (2 << CRC_CTRL_TOT_SHIFT) /* Both bits bytes and bytes transposed */
+#  define CRC_CTRL_TOT_BYTES      (3 << CRC_CTRL_TOT_SHIFT) /* Bytes transposed; bits in byte are not */
+
+/************************************************************************************
+ * Public Types
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+#endif /* __ARCH_ARM_SRC_KINETIS_KINETIS_CRC_H */
diff --git a/nuttx/arch/arm/src/kinetis/kinetis_mcg.h b/nuttx/arch/arm/src/kinetis/kinetis_mcg.h
new file mode 100644
index 000000000..cb6d22c4a
--- /dev/null
+++ b/nuttx/arch/arm/src/kinetis/kinetis_mcg.h
@@ -0,0 +1,186 @@
+/************************************************************************************
+ * arch/arm/src/kinetis/kinetis_mcg.h
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_KINETIS_KINETIS_MCG_H
+#define __ARCH_ARM_SRC_KINETIS_KINETIS_MCG_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include "chip.h"
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Register Offsets *****************************************************************/
+
+#define KINETIS_MCG_C1_OFFSET     0x0000 /* MCG Control 1 Register */
+#define KINETIS_MCG_C2_OFFSET     0x0001 /* MCG Control 2 Register */
+#define KINETIS_MCG_C3_OFFSET     0x0002 /* MCG Control 3 Register */
+#define KINETIS_MCG_C4_OFFSET     0x0003 /* MCG Control 4 Register */
+#define KINETIS_MCG_C5_OFFSET     0x0004 /* MCG Control 5 Register */
+#define KINETIS_MCG_C6_OFFSET     0x0005 /* MCG Control 6 Register */
+#define KINETIS_MCG_S_OFFSET      0x0006 /* MCG Status Register */
+#define KINETIS_MCG_ATC_OFFSET    0x0008 /* MCG Auto Trim Control Register */
+#define KINETIS_MCG_ATCVH_OFFSET  0x000a /* MCG Auto Trim Compare Value High Register */
+#define KINETIS_MCG_ATCVL_OFFSET  0x000b /* MCG Auto Trim Compare Value Low Register */
+
+/* Register Addresses ***************************************************************/
+
+#define KINETIS_MCG_C1            (KINETIS_MCG_BASE+KINETIS_MCG_C1_OFFSET)
+#define KINETIS_MCG_C2            (KINETIS_MCG_BASE+KINETIS_MCG_C2_OFFSET)
+#define KINETIS_MCG_C3            (KINETIS_MCG_BASE+KINETIS_MCG_C3_OFFSET)
+#define KINETIS_MCG_C4            (KINETIS_MCG_BASE+KINETIS_MCG_C4_OFFSET)
+#define KINETIS_MCG_C5            (KINETIS_MCG_BASE+KINETIS_MCG_C5_OFFSET)
+#define KINETIS_MCG_C6            (KINETIS_MCG_BASE+KINETIS_MCG_C6_OFFSET)
+#define KINETIS_MCG_S             (KINETIS_MCG_BASE+KINETIS_MCG_S_OFFSET)
+#define KINETIS_MCG_ATC           (KINETIS_MCG_BASE+KINETIS_MCG_ATC_OFFSET)
+#define KINETIS_MCG_ATCVH         (KINETIS_MCG_BASE+KINETIS_MCG_ATCVH_OFFSET)
+#define KINETIS_MCG_ATCVL         (KINETIS_MCG_BASE+KINETIS_MCG_ATCVL_OFFSET)
+
+/* Register Bit Definitions *********************************************************/
+
+/* MCG Control 1 Register (8-bit) */
+
+#define MCG_C1_IREFSTEN           (1 << 0)  /* Bit 0:  Internal Reference Stop Enable */
+#define MCG_C1_IRCLKEN            (1 << 1)  /* Bit 1:  Internal Reference Clock Enable */
+#define MCG_C1_IREFS              (1 << 2)  /* Bit 2:  Internal Reference Select */
+#define MCG_C1_FRDIV_SHIFT        (3)       /* Bits 3-5: FLL External Reference Divider */
+#define MCG_C1_FRDIV_MASK         (7 << MCG_C1_FRDIV_SHIFT)
+#  define MCG_C1_FRDIV_R0DIV1     (0 << MCG_C1_FRDIV_SHIFT) /* RANGE==0 divider=1 */
+#  define MCG_C1_FRDIV_R0DIV2     (1 << MCG_C1_FRDIV_SHIFT) /* RANGE==0 divider=2 */
+#  define MCG_C1_FRDIV_R0DIV4     (2 << MCG_C1_FRDIV_SHIFT) /* RANGE==0 divider=4 */
+#  define MCG_C1_FRDIV_R0DIV8     (3 << MCG_C1_FRDIV_SHIFT) /* RANGE==0 divider=8 */
+#  define MCG_C1_FRDIV_R0DIV16    (4 << MCG_C1_FRDIV_SHIFT) /* RANGE==0 divider=16 */
+#  define MCG_C1_FRDIV_R0DIV32    (5 << MCG_C1_FRDIV_SHIFT) /* RANGE==0 divider=32 */
+#  define MCG_C1_FRDIV_R0DIV64    (6 << MCG_C1_FRDIV_SHIFT) /* RANGE==0 divider=64 */
+#  define MCG_C1_FRDIV_R0DIV128   (7 << MCG_C1_FRDIV_SHIFT) /* RANGE==0 divider=128 */
+#  define MCG_C1_FRDIV_DIV32      (0 << MCG_C1_FRDIV_SHIFT) /* RANGE!=0 divider=32 */
+#  define MCG_C1_FRDIV_DIV64      (1 << MCG_C1_FRDIV_SHIFT) /* RANGE!=0 divider=64 */
+#  define MCG_C1_FRDIV_DIV128     (2 << MCG_C1_FRDIV_SHIFT) /* RANGE!=0 divider=128 */
+#  define MCG_C1_FRDIV_DIV256     (3 << MCG_C1_FRDIV_SHIFT) /* RANGE!=0 divider=256 */
+#  define MCG_C1_FRDIV_DIV512     (4 << MCG_C1_FRDIV_SHIFT) /* RANGE!=0 divider=512 */
+#  define MCG_C1_FRDIV_DIV1024    (5 << MCG_C1_FRDIV_SHIFT) /* RANGE!=0 divider=1024 */
+#define MCG_C1_CLKS_SHIFT         (6)       /* Bits 6-7: Clock Source Select */
+#define MCG_C1_CLKS_MASK          (3 << MCG_C1_CLKS_SHIFT)
+#  define MCG_C1_CLKS_PLL         (0 << MCG_C1_CLKS_SHIFT) /* FLL or PLL output */
+#  define MCG_C1_CLKS_INTREF      (1 << MCG_C1_CLKS_SHIFT) /* Internal reference clock */
+#  define MCG_C1_CLKS_EXTREF      (2 << MCG_C1_CLKS_SHIFT) /* External reference clock */
+
+/* MCG Control 2 Register */
+
+#define MCG_C2_IRCS               (1 << 0)  /* Bit 0:  Internal Reference Clock Select */
+#define MCG_C2_LP                 (1 << 1)  /* Bit 1:  Low Power Select */
+#define MCG_C2_EREFS              (1 << 2)  /* Bit 2:  External Reference Select */
+#define MCG_C2_HGO                (1 << 3)  /* Bit 3:  High Gain Oscillator Select */
+#define MCG_C2_RANGE_SHIFT        (4)       /* Bits 4-5: Frequency Range Select */
+#define MCG_C2_RANGE_MASK         (3 << MCG_C2_RANGE_SHIFT)
+#  define MCG_C2_RANGE_LOW        (0 << MCG_C2_RANGE_SHIFT) /* Oscillator of 32 kHz to 40 kHz  */
+#  define MCG_C2_RANGE_HIGH       (1 << MCG_C2_RANGE_SHIFT) /* Oscillator of 1 MHz to 8 MHz */
+#  define MCG_C2_RANGE_VHIGH      (2 << MCG_C2_RANGE_SHIFT) /* Oscillator of 8 MHz to 32 MHz */
+                                            /* Bits 6-7: Reserved */
+/* MCG Control 3 Register (8-bit Slow Internal Reference Clock Trim Setting) */
+
+/* MCG Control 4 Register (8-bit) */
+
+#define MCG_C4_SCFTRIM            (1 << 0)  /* Bit 0:  Slow Internal Reference Clock Fine Trim */
+#define MCG_C4_FCTRIM_SHIFT       (1)       /* Bits 1-4: Fast Internal Reference Clock Trim Setting */
+#define MCG_C4_FCTRIM_MASK        (15 << MCG_C4_FCTRIM_SHIFT)
+#define MCG_C4_DRST_DRS_SHIFT     (5)       /* Bits 5-6: DCO Range Select */
+#define MCG_C4_DRST_DRS_MASK      (3 << MCG_C4_DRST_DRS_SHIFT)
+#  define MCG_C4_DRST_DRS_LOW     (nn << MCG_C4_DRST_DRS_SHIFT)
+#  define MCG_C4_DRST_DRS_MID     (nn << MCG_C4_DRST_DRS_SHIFT)
+#  define MCG_C4_DRST_DRS_MIDHIGH (nn << MCG_C4_DRST_DRS_SHIFT)
+#  define MCG_C4_DRST_DRS_HIGH    (nn << MCG_C4_DRST_DRS_SHIFT)
+#define MCG_C4_DMX32              (1 << 7)  /* Bit 7:  DCO Maximum Frequency with 32.768 kHz Reference */
+
+/* MCG Control 5 Register */
+
+#define MCG_C5_PRDIV_SHIFT        (0)       /* Bits 0-4: PLL External Reference Divider */
+#define MCG_C5_PRDIV_MASK         (31 << PRDIV_SHIFT)
+#  define MCG_C5_PRDIV(n)         (((n)-1) << PRDIV_SHIFT) /* Divide factor n=1..25 */
+#define MCG_C5_PLLSTEN            (1 << 5)  /* Bit 5:  PLL Stop Enable */
+#define MCG_C5_PLLCLKEN           (1 << 6)  /* Bit 6:  PLL Clock Enable */
+                                            /* Bit 7: Reserved */
+
+/* MCG Control 6 Register */
+
+#define MCG_C6_VDIV_SHIFT         (0)       /* Bits 0-4: VCO Divider */
+#define MCG_C6_VDIV_MASK          (31 << PRDIV_SHIFT)
+#  define MCG_C6_VDIV(n)          (((n)-24) << PRDIV_SHIFT) /* Divide factor n=24..55 */
+#define MCG_C6_CME                (1 << 5)  /* Bit 5:  Clock Monitor Enable */
+#define MCG_C6_PLLS               (1 << 6)  /* Bit 6:  PLL Select */
+#define MCG_C6_LOLIE              (1 << 7)  /* Bit 7:  Loss of Lock Interrrupt Enable */
+
+/* MCG Status Register */
+
+#define MCG_S_IRCST               (1 << 0)  /* Bit 0:  Internal Reference Clock Status */
+#define MCG_S_OSCINIT             (1 << 1)  /* Bit 1:  OSC Initialization */
+#define MCG_S_CLKST_SHIFT         (2)       /* Bits 2-3: Clock Mode Status */
+#define MCG_S_CLKST_MASK          (3 << MCG_S_CLKST_SHIFT)
+#  define MCG_S_CLKST_FLL         (0 << MCG_S_CLKST_SHIFT) /* Output of the FLL */
+#  define MCG_S_CLKST_INTREF      (1 << MCG_S_CLKST_SHIFT) /* Internal reference clock */
+#  define MCG_S_CLKST_EXTREF      (2 << MCG_S_CLKST_SHIFT) /* External reference clock */
+#  define MCG_S_CLKST_PLL         (3 << MCG_S_CLKST_SHIFT) /* Output of the PLL */
+#define MCG_S_IREFST              (1 << 4)  /* Bit 4:  Internal Reference Status */
+#define MCG_S_PLLST               (1 << 5)  /* Bit 5:  PLL Select Status */
+#define MCG_S_LOCK                (1 << 6)  /* Bit 6:  Lock Status */
+#define MCG_S_LOLS                (1 << 7)  /* Bit 7:  Loss of Lock Status */
+
+/* MCG Auto Trim Control Register */
+                                            /* Bits 0-4: Reserved */
+#define MCG_ATC_ATMF              (1 << 5)  /* Bit 5:  Automatic Trim machine Fail Flag */
+#define MCG_ATC_ATMS              (1 << 6)  /* Bit 6:  Automatic Trim Machine Select */
+#define MCG_ATC_ATME              (1 << 7)  /* Bit 7:  Automatic Trim Machine Enable */
+
+/* MCG Auto Trim Compare Value High/Low Registers (8-bit compare value) */
+
+/************************************************************************************
+ * Public Types
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+#endif /* __ARCH_ARM_SRC_KINETIS_KINETIS_MCG_H */
diff --git a/nuttx/arch/arm/src/kinetis/kinetis_osc.h b/nuttx/arch/arm/src/kinetis/kinetis_osc.h
new file mode 100644
index 000000000..fef1e0ae7
--- /dev/null
+++ b/nuttx/arch/arm/src/kinetis/kinetis_osc.h
@@ -0,0 +1,84 @@
+/********************************************************************************************
+ * arch/arm/src/kinetis/kinetis_osc.h
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ********************************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_KINETIS_KINETIS_OSC_H
+#define __ARCH_ARM_SRC_KINETIS_KINETIS_OSC_H
+
+/********************************************************************************************
+ * Included Files
+ ********************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include "chip.h"
+
+/********************************************************************************************
+ * Pre-processor Definitions
+ ********************************************************************************************/
+
+/* Register Offsets *************************************************************************/
+
+#define KINETIS_OSC_CR_OFFSET  0x0000 /* OSC Control Register */
+
+/* Register Addresses ***********************************************************************/
+
+#define KINETIS_OSC_CR         (KINETIS_OSC_BASE+KINETIS_OSC_CR_OFFSET)
+
+/* Register Bit Definitions *****************************************************************/
+
+/* OSC Control Register (8-bit) */
+
+#define OSC_CR_ERCLKEN         (1 << 7)  /* Bit 7:  External Reference Enable */
+                                         /* Bit 6:  Reserved */
+#define OSC_CR_EREFSTEN        (1 << 5)  /* Bit 5:  External Reference Stop Enable */
+                                         /* Bit 4:  Reserved */
+#define OSC_CR_SC2P            (1 << 3)  /* Bit 3:  Oscillator 2 pF Capacitor Load Configure */
+#define OSC_CR_SC4P            (1 << 2)  /* Bit 2:  Oscillator 4 pF Capacitor Load Configure */
+#define OSC_CR_SC8P            (1 << 1)  /* Bit 1:  Oscillator 8 pF Capacitor Load Configure */
+#define OSC_CR_SC16P           (1 << 0)  /* Bit 0:  Oscillator 16 pF Capacitor Load Configure */
+
+/********************************************************************************************
+ * Public Types
+ ********************************************************************************************/
+
+/********************************************************************************************
+ * Public Data
+ ********************************************************************************************/
+
+/********************************************************************************************
+ * Public Functions
+ ********************************************************************************************/
+
+#endif /* __ARCH_ARM_SRC_KINETIS_KINETIS_OSC_H */