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Add clock initialization logic

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2985 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-10-09 20:58:50 +00:00
parent bbb0c669e7
commit a9ee5a5cb6
3 changed files with 436 additions and 1 deletions
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3
arch/avr/src/at91uc3/Make.defs
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@ -50,7 +50,8 @@ CMN_CSRCS = up_assert.c up_blocktask.c up_copystate.c up_createstack.c \
# Required AT91UC3 files # Required AT91UC3 files
CHIP_ASRCS = CHIP_ASRCS =
CHIP_CSRCS = at91uc3_lowconsole.c at91uc3_lowinit.c at91uc3_serial.c CHIP_CSRCS = at91uc3_clkinit.c at91uc3_lowconsole.c at91uc3_lowinit.c \
at91uc3_serial.c
# Configuration-dependent AT91UC3 files # Configuration-dependent AT91UC3 files

134
arch/avr/src/at91uc3/at91uc3_clkinit.c Normal file
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@ -0,0 +1,134 @@
/**************************************************************************
* arch/avr/src/at91uc3/at91uc3_clkinit.c
*
* Copyright (C) 2010 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.
*
**************************************************************************/
/**************************************************************************
* Included Files
**************************************************************************/
#include <nuttx/config.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "at91uc3_config.h"
#include "up_internal.h"
#include "at91uc3_internal.h"
#include "at91uc3_pm.h"
/**************************************************************************
* Private Definitions
**************************************************************************/
/**************************************************************************
* Private Types
**************************************************************************/
/**************************************************************************
* Private Function Prototypes
**************************************************************************/
/**************************************************************************
* Global Variables
**************************************************************************/
/**************************************************************************
* Private Variables
**************************************************************************/
/**************************************************************************
* Private Functions
**************************************************************************/
/**************************************************************************
* Public Functions
**************************************************************************/
/************************************************************************************
* Name: up_clkinit
*
* Description:
* Initialiaze clock/PLL settings per the definitions in the board.h file.
*
************************************************************************************/
void up_clkinitialize(void)
{
uint32_t regval;
/* Enable OSC0 in the correct crystal mode by setting the mode value in OSCCTRL0 */
regval = getreg32(AVR32_PM_OSCCTRL0);
regval &= ~PM_OSCCTRL_MODE_MASK;
#if AVR32_FOSC0 < 900000
regval |= PM_OSCCTRL_MODE_XTALp9; /* Crystal XIN 0.4-0.9MHz */
#elif AVR32_FOSC0 < 3000000
regval |= PM_OSCCTRL_MODE_XTAL3; /* Crystal XIN 0.9-3.0MHz */
#elif AVR32_FOSC0 < 8000000
regval |= PM_OSCCTRL_MODE_XTAL8; /* Crystal XIN 3.0-8.0MHz */
#else
regval |= PM_OSCCTRL_MODE_XTALHI; /* Crystal XIN above 8.0MHz */
#endif
putreg32(regval, AVR32_PM_OSCCTRL0);
/* Enable CLK 0 using the startup time provided in board.h. This startup time
* is critical and depends on the characteristics of the crystal.
*/
regval = getreg32(AVR32_PM_OSCCTRL0);
regval &= ~PM_OSCCTRL_STARTUP_MASK;
regval |= (AVR32_OSC0STARTUP << PM_OSCCTRL_STARTUP_SHIFT);
putreg32(regval, AVR32_PM_OSCCTRL0);
/* Enabled OSC0 */
regval = getreg32(AVR32_PM_MCCTRL);
regval |= PM_MCCTRL_OSC0EN;
putreg32(regval, AVR32_PM_MCCTRL);
/* Wait for CLK0 to be ready */
while ((getreg32(AVR32_PM_POSCSR) & PM_POSCSR_OSC0RDY) == 0);
/* Then switch the main clock to OSC0 */
regval = getreg32(AVR32_PM_MCCTRL);
regval &= ~PM_MCCTRL_MCSEL_MASK;
regval |= PM_MCCTRL_MCSEL_OSC0;
putreg32(regval, AVR32_PM_MCCTRL);
}

300
arch/avr/src/at91uc3/at91uc3_pm.h Executable file
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@ -0,0 +1,300 @@
/************************************************************************************
* arch/avr/src/at91uc3/at91uc3_pm.h
*
* Copyright (C) 2010 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_AVR_SRC_AT91UC3_AT91UC3_PM_H
#define __ARCH_AVR_SRC_AT91UC3_AT91UC3_PM_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Register offsets *****************************************************************/
#define AVR32_PM_MCCTRL_OFFSET 0x0000 /* Main Clock Control Register */
#define AVR32_PM_CKSEL_OFFSET 0x0004 /* Clock Select Register */
#define AVR32_PM_CPUMASK_OFFSET 0x0008 /* CPU Mask Register */
#define AVR32_PM_HSBMASK_OFFSET 0x000c /* HSB Mask Register */
#define AVR32_PM_PBAMASK_OFFSET 0x0010 /* PBA Mask Register */
#define AVR32_PM_PBBMASK_OFFSET 0x0014 /* PBB Mask Register */
#define AVR32_PM_PLL0_OFFSET 0x0020 /* PLL0 Control Register */
#define AVR32_PM_PLL1_OFFSET 0x0024 /* PLL1 Control Register */
#define AVR32_PM_OSCCTRL0_OFFSET 0x0028 /* Oscillator 0 Control Register */
#define AVR32_PM_OSCCTRL1_OFFSET 0x002c /* Oscillator 1 Control Register */
#define AVR32_PM_OSCCTRL32_OFFSET 0x0030 /* Oscillator 32 Control Register */
#define AVR32_PM_IER_OFFSET 0x0040 /* Interrupt Enable Register */
#define AVR32_PM_IDR_OFFSET 0x0044 /* Interrupt Disable Register */
#define AVR32_PM_IMR_OFFSET 0x0048 /* Interrupt Mask Register */
#define AVR32_PM_ISR_OFFSET 0x004c /* Interrupt Status Register */
#define AVR32_PM_ICR_OFFSET 0x0050 /* Interrupt Clear Register */
#define AVR32_PM_POSCSR_OFFSET 0x0054 /* Power and Oscillators Status Register */
#define AVR32_PM_GCCTRL_OFFSET 0x0060 /* 0x0060-0x070 Generic Clock Control Register */
#define AVR32_PM_RCCR_OFFSET 0x00c0 /* RC Oscillator Calibration Register */
#define AVR32_PM_BGCR_OFFSET 0x00c4 /* Bandgap Calibration Register */
#define AVR32_PM_VREGCR_OFFSET 0x00c8 /* Linear Regulator Calibration Register */
#define AVR32_PM_BOD_OFFSET 0x00d0 /* BOD Level Register BOD Read/Write */
#define AVR32_PM_RCAUSE_OFFSET 0x0140 /* Reset Cause Register */
#define AVR32_PM_AWEN_OFFSET 0x0144 /* Asynchronous Wake Up Enable Register */
#define AVR32_PM_GPLP0_OFFSET 0x0200 /* General Purpose Low-Power Register 0 */
#define AVR32_PM_GPLP1_OFFSET 0x0204 /* General Purpose Low-Power Register 1 */
/* Register Addresses ***************************************************************/
#define AVR32_PM_MCCTRL (AVR32_PM_BASE+AVR32_PM_MCCTRL_OFFSET)
#define AVR32_PM_CKSEL (AVR32_PM_BASE+AVR32_PM_CKSEL_OFFSET)
#define AVR32_PM_CPUMASK (AVR32_PM_BASE+AVR32_PM_CPUMASK_OFFSET)
#define AVR32_PM_HSBMASK (AVR32_PM_BASE+AVR32_PM_HSBMASK_OFFSET)
#define AVR32_PM_PBAMASK (AVR32_PM_BASE+AVR32_PM_PBAMASK_OFFSET)
#define AVR32_PM_PBBMASK (AVR32_PM_BASE+AVR32_PM_PBBMASK_OFFSET)
#define AVR32_PM_PLL0 (AVR32_PM_BASE+AVR32_PM_PLL0_OFFSET)
#define AVR32_PM_PLL1 (AVR32_PM_BASE+AVR32_PM_PLL1_OFFSET)
#define AVR32_PM_OSCCTRL0 (AVR32_PM_BASE+AVR32_PM_OSCCTRL0_OFFSET)
#define AVR32_PM_OSCCTRL1 (AVR32_PM_BASE+AVR32_PM_OSCCTRL1_OFFSET)
#define AVR32_PM_OSCCTRL32 (AVR32_PM_BASE+AVR32_PM_OSCCTRL32_OFFSET)
#define AVR32_PM_IER (AVR32_PM_BASE+AVR32_PM_IER_OFFSET)
#define AVR32_PM_IDR (AVR32_PM_BASE+AVR32_PM_IDR_OFFSET)
#define AVR32_PM_IMR (AVR32_PM_BASE+AVR32_PM_IMR_OFFSET)
#define AVR32_PM_ISR (AVR32_PM_BASE+AVR32_PM_ISR_OFFSET)
#define AVR32_PM_ICR (AVR32_PM_BASE+AVR32_PM_ICR_OFFSET)
#define AVR32_PM_POSCSR (AVR32_PM_BASE+AVR32_PM_POSCSR_OFFSET)
#define AVR32_PM_GCCTRL (AVR32_PM_BASE+AVR32_PM_GCCTRL_OFFSET)
#define AVR32_PM_RCCR (AVR32_PM_BASE+AVR32_PM_RCCR_OFFSET)
#define AVR32_PM_BGCR (AVR32_PM_BASE+AVR32_PM_BGCR_OFFSET)
#define AVR32_PM_VREGCR (AVR32_PM_BASE+AVR32_PM_VREGCR_OFFSET)
#define AVR32_PM_BOD (AVR32_PM_BASE+AVR32_PM_BOD_OFFSET)
#define AVR32_PM_RCAUSE (AVR32_PM_BASE+AVR32_PM_RCAUSE_OFFSET)
#define AVR32_PM_AWEN (AVR32_PM_BASE+AVR32_PM_AWEN_OFFSET)
#define AVR32_PM_GPLP0 (AVR32_PM_BASE+AVR32_PM_GPLP0_OFFSET)
#define AVR32_PM_GPLP1 (AVR32_PM_BASE+AVR32_PM_GPLP1_OFFSET)
/* Register Bit-field Definitions ***************************************************/
/* Main Clock Control Register Bit-field Definitions */
#define PM_MCCTRL_MCSEL_SHIFT (0) /* Bits 0-1: Main Clock Select */
#define PM_MCCTRL_MCSEL_MASK (3 << PM_MCCTRL_MCSEL_SHIFT)
# define PM_MCCTRL_MCSEL_SLOW (0 << PM_MCCTRL_MCSEL_SHIFT) /* slow clock is source */
# define PM_MCCTRL_MCSEL_OSC0 (1 << PM_MCCTRL_MCSEL_SHIFT) /* Oscillator 0 is source */
# define PM_MCCTRL_MCSEL_PLL0 (2 << PM_MCCTRL_MCSEL_SHIFT) /* PLL0 is source */
#define PM_MCCTRL_OSC0EN (1 << 2) /* Bit 2: Oscillator 0 Enable */
#define PM_MCCTRL_OSC1EN (1 << 3) /* Bit 3: Oscillator 1 Enable */
/* Clock Select Register Bit-field Definitions */
#define PM_CKSEL_CPUSEL_SHIFT (0) /* Bits 0-2: CPU Clock Select */
#define PM_CKSEL_CPUSEL_MASK (7 << PM_CKSEL_CPUSEL_SHIFT)
#define PM_CKSEL_CPUDIV (1 << 7) /* Bit 7: CPU Division */
#define PM_CKSEL_HSBSEL_SHIFT (8) /* Bits 8-10: HSB Clock Select */
#define PM_CKSEL_HSBSEL_MASK (7 << PM_CKSEL_HSBSEL_SHIFT)
#define PM_CKSEL_HSBDIV (1 << 15) /* Bit 15: HSB Division */
#define PM_CKSEL_PBASEL_SHIFT (16) /* Bits 16-28: BA Clock Select */
#define PM_CKSEL_PBASEL_MASK (7 << PM_CKSEL_PBASEL_SHIFT)
#define PM_CKSEL_PBADIV (1 << 23) /* Bit 23: PBA Division */
#define PM_CKSEL_PBBSEL_SHIFT (24) /* Bits 24-26: PBB Clock Select */
#define PM_CKSEL_PBBSEL_MASK (7 << PM_CKSEL_PBBSEL_SHIFT)
#define PM_CKSEL_PBBDIV (1 << 31) /* Bit 31: PBB Division */
/* CPU Mask Register Bit-field Definitions */
/* HSB Mask Register Bit-field Definitions */
/* PBA Mask Register Bit-field Definitions */
/* PBB Mask Register Bit-field Definitions */
/* These registers contain a 32-bit value with no smaller bit-field */
/* PLL0/1 Control Register Bit-field Definitions */
#define PM_PLL_PLLEN (1 << 0) /* Bit 0: PLL Enable */
#define PM_PLL_PLLOSC (1 << 1) /* Bit 1: PLL Oscillator Select */
#define PM_PLL_PLLOPT_SHIFT (2) /* Bits 2-3: PLL Option */
#define PM_PLL_PLLOPT_MASK (7 << PM_PLL_PLLOPT_SHIFT)
# define PM_PLL_PLLOPT_VCO (1 << PM_PLL_PLLOPT_SHIFT) /* Select the VCO frequency range */
# define PM_PLL_PLLOPT_XTRADIV (2 << PM_PLL_PLLOPT_SHIFT) /* Enable the extra output divider */
# define PM_PLL_PLLOPT_WBWDIS (4 << PM_PLL_PLLOPT_SHIFT) /* Disable the Wide-Bandwidth mode */
#define PM_PLL_PLLDIV_SHIFT (8) /* Bits 8-11: PLL Division Factor */
#define PM_PLL_PLLDIV_MASK (15 << PM_PLL_PLLDIV_SHIFT)
#define PM_PLL_PLLMUL_SHIFT (16) /* Bits 16-19: PLL Multiply Factor */
#define PM_PLL_PLLMUL_MASK (15 << PM_PLL_PLLMUL_SHIFT)
#define PM_PLL_PLLCOUNT_SHIFT (24) /* Bits 24-29: PLL Count */
#define PM_PLL_PLLCOUNT_MASK (0x3f << PM_PLL_PLLCOUNT_SHIFT)
/* Oscillator 0/1 Control Register Bit-field Definitions */
#define PM_OSCCTRL_MODE_SHIFT (0) /* Bits 0-2: Oscillator Mode */
#define PM_OSCCTRL_MODE_MASK (7 << PM_OSCCTRL_MODE_SHIFT)
# define PM_OSCCTRL_MODE_EXT (0 << PM_OSCCTRL_MODE_SHIFT) /* External clock */
# define PM_OSCCTRL_MODE_XTALp9 (4 << PM_OSCCTRL_MODE_SHIFT) /* Crystal XIN 0.4-0.9MHz */
# define PM_OSCCTRL_MODE_XTAL3 (5 << PM_OSCCTRL_MODE_SHIFT) /* Crystal XIN 0.9-3.0MHz */
# define PM_OSCCTRL_MODE_XTAL8 (6 << PM_OSCCTRL_MODE_SHIFT) /* Crystal XIN 3.0-8.0MHz */
# define PM_OSCCTRL_MODE_XTALHI (7 << PM_OSCCTRL_MODE_SHIFT) /* Crystal XIN above 8.0MHz */
#define PM_OSCCTRL_STARTUP_SHIFT (8) /* Bits 8-10: Oscillator Startup Time */
#define PM_OSCCTRL_STARTUP_MASK (7 << PM_OSCCTRL_STARTUP_SHIFT)
# define PM_OSCCTRL_STARTUP_0 (0 << PM_OSCCTRL_STARTUP_SHIFT) /* Num RCOsc cycles */
# define PM_OSCCTRL_STARTUP_64 (1 << PM_OSCCTRL_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL_STARTUP_128 (2 << PM_OSCCTRL_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL_STARTUP_2K (3 << PM_OSCCTRL_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL_STARTUP_4K (4 << PM_OSCCTRL_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL_STARTUP_8K (5 << PM_OSCCTRL_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL_STARTUP_16K (6 << PM_OSCCTRL_STARTUP_SHIFT) /* " " " " " " */
/* Oscillator 32 Control Register Bit-field Definitions */
#define PM_OSCCTRL32_EN (1 << 0) /* Bit 0: Enable the 32KHz oscillator */
#define PM_OSCCTRL32_MODE_SHIFT (8) /* Bits 8-10: Oscillator Mode */
#define PM_OSCCTRL32_MODE_MASK (7 << PM_OSCCTRL32_MODE_SHIFT)
# define PM_OSCCTRL32_MODE_EXT (0 << PM_OSCCTRL32_MODE_SHIFT) /* External clock */
# define PM_OSCCTRL32_MODE_XTALp9 (1 << PM_OSCCTRL32_MODE_SHIFT) /* Crystal */
#define PM_OSCCTRL32_STARTUPSHIFT (16) /* Bits 16-18: Oscillator Startup Time */
#define PM_OSCCTRL32_STARTUP_MASK (7 << PM_OSCCTRL32_STARTUP_SHIFT)
# define PM_OSCCTRL32_STARTUP_0 (0 << PM_OSCCTRL32_STARTUP_SHIFT) /* Num RCOsc cycles */
# define PM_OSCCTRL32_STARTUP_128 (1 << PM_OSCCTRL32_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL32_STARTUP_8K (2 << PM_OSCCTRL32_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL32_STARTUP_16K (3 << PM_OSCCTRL32_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL32_STARTUP_64K (4 << PM_OSCCTRL32_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL32_STARTUP_128K (5 << PM_OSCCTRL32_STARTUP_SHIFT) /* " " " " " " */
# define PM_OSCCTRL32_STARTUP_512K (6 << PM_OSCCTRL32_STARTUP_SHIFT) /* " " " " " " */
/* Interrupt Enable Register Bit-field Definitions */
/* Interrupt Disable Register Bit-field Definitions */
/* Interrupt Mask Register Bit-field Definitions */
/* Interrupt Status Register Bit-field Definitions */
/* Interrupt Clear Register Bit-field Definitions */
#define PM_INT_LOCK0 (1 << 0) /* Bit 0: PLL0 locked */
#define PM_INT_LOCK1 (1 << 1) /* Bit 1: PLL1 locked */
#define PM_INT_CKRDY (1 << 5) /* Bit 5: Clock Ready */
#define PM_INT_MSKRDY (1 << 6) /* Bit 6: Mask Ready */
#define PM_INT_OSC0RDY (1 << 7) /* Bit 7: Oscillator 0 Ready */
#define PM_INT_OSC1RDY (1 << 8) /* Bit 8: Oscillator 1 Ready */
#define PM_INT_OSC32RDY (1 << 9) /* Bit 9: 32 KHz oscillator Ready */
#define PM_INT_BODDET (1 << 16) /* Bit 16: Brown out detection */
/* Power and Oscillators Status Register Bit-field Definitions */
#define PM_POSCSR_LOCK0 (1 << 0) /* Bit 0: PLL0 locked */
#define PM_POSCSR_LOCK1 (1 << 1) /* Bit 1: PLL1 locked */
#define PM_POSCSR_WAKE (1 << 2) /* Bit 1: PLL1 locked */
#define PM_POSCSR_CKRDY (1 << 5) /* Bit 5: Clock Ready */
#define PM_POSCSR_MSKRDY (1 << 6) /* Bit 6: Mask Ready */
#define PM_POSCSR_OSC0RDY (1 << 7) /* Bit 7: Oscillator 0 Ready */
#define PM_POSCSR_OSC1RDY (1 << 8) /* Bit 8: Oscillator 1 Ready */
#define PM_POSCSR_OSC32RDY (1 << 9) /* Bit 9: 32 KHz oscillator Ready */
#define PM_POSCSR_BODDET (1 << 16) /* Bit 16: Brown out detection */
/* 0x0060-0x070 Generic Clock Control Register Bit-field Definitions */
#define PM_GCCTRL_OSCSEL (1 << 0) /* Bit 0: Oscillator Select */
#define PM_GCCTRL_PLLSEL (1 << 1) /* Bit 1: PLL Select */
#define PM_GCCTRL_CEN (1 << 2) /* Bit 2: Clock Enable */
#define PM_GCCTRL_DIVEN (1 << 4) /* Bit 4: Divide Enable */
#define PM_GCCTRL_DIV_SHIFT (8) /* Bits 8-15: Division Factor */
#define PM_GCCTRL_DIV_MASK (0xff << PM_GCCTRL_DIV_SHIFT)
/* RC Oscillator Calibration Register Bit-field Definitions */
#define PM_RCCR_CALIB_SHIFT (0) /* Bits 0-9: Calibration Value */
#define PM_RCCR_CALIB_MASK (0x3ff << PM_RCCR_CALIB_SHIFT)
#define PM_RCCR_FCD (1 << 16) /* Bit 16: Flash Calibration Done */
#define PM_RCCR_KEY_SHIFT (24) /* Bits 24-31: Register Write protection */
#define PM_RCCR_KEY_MASK (0xff << PM_RCCR_KEY_SHIFT)
/* Bandgap Calibration Register Bit-field Definitions */
#define PM_BGCR_CALIB_SHIFT (0) /* Bits 0-3: Calibration Value */
#define PM_BGCR_CALIB_MASK (7 << PM_BGCR_CALIB_SHIFT)
#define PM_BGCR_FCD (1 << 16) /* Bit 16: Flash Calibration Done */
#define PM_BGCR_KEY_SHIFT (24) /* Bits 24-31: Register Write protection */
#define PM_BGCR_KEY_MASK (0xff << PM_BGCR_KEY_SHIFT)
/* Linear Regulator Calibration Register Bit-field Definitions */
#define PM_VREGCR_CALIB_SHIFT (0) /* Bits 0-3: Calibration Value */
#define PM_VREGCR_CALIB_MASK (7 << PM_VREGCR_CALIB_SHIFT)
#define PM_VREGCR_FCD (1 << 16) /* Bit 16: Flash Calibration Done */
#define PM_VREGCR_KEY_SHIFT (24) /* Bits 24-31: Register Write protection */
#define PM_VREGCR_KEY_MASK (0xff << PM_VREGCR_KEY_SHIFT)
/* BOD Level Register BOD Read/Write Bit-field Definitions */
#define PM_BOD_LEVEL_SHIFT (0) /* Bits 0-5: BOD Level */
#define PM_BOD_LEVEL_MASK (0x3f << PM_BOD_LEVEL_SHIFT)
#define PM_BOD_HYST (1 << 6) /* Bit 6: BOD Hysteresis */
#define PM_BOD_CTRL_SHIFT (8) /* Bits 8-9: BOD Control */
#define PM_BOD_CTRL_MASK (3 << PM_BOD_CTRL_SHIFT)
# define PM_BOD_CTRL_OFF (xxx << PM_BOD_CTRL_SHIFT) /* BOD is off */
# define PM_BOD_CTRL_RESET (xxx << PM_BOD_CTRL_SHIFT) /* BOD enabled/can reset */
# define PM_BOD_CTRL_NORESET (xxx << PM_BOD_CTRL_SHIFT) /* BOD enabled/cannot reset */
#define PM_BOD_FCD (1 << 16) /* Bit 16: BOD Fuse calibration done */
#define PM_BOD_KEY_SHIFT (24) /* Bits 24-31: Register Write protection */
#define PM_BOD_KEY_MASK (0xff << PM_BOD_KEY_SHIFT)
/* Reset Cause Register */
#define PM_RCAUSE_POR (1 << 0) /* Bit 0: Power-on Reset */
#define PM_RCAUSE_BOD (1 << 1) /* Bit 1: Brown-out Reset */
#define PM_RCAUSE_EXT (1 << 2) /* Bit 2: External Reset Pin */
#define PM_RCAUSE_WDT (1 << 3) /* Bit 3: Watchdog Reset */
#define PM_RCAUSE_JTAG (1 << 4) /* Bit 4: JTAG reset */
#define PM_RCAUSE_SLEEP (1 << 6) /* Bit 6: Sleep */
#define PM_RCAUSE_CPUERR (1 << 7) /* Bit 7: CPU Error */
#define PM_RCAUSE_OCDRST (1 << 8) /* Bit 8: OCD Reset */
/* Asynchronous Wake Up Enable Register Bit-field Definitions */
#define PM_AWEN_USBWAKEN (1 << 0) /* Bit 0: USB Wake Up Enable */
/* General Purpose Low-Power Register 0/1 Bit-field Definitions */
/* These registers contain a 32-bit value with no smaller bit-field */
/************************************************************************************
* Public Types
************************************************************************************/
/************************************************************************************
* Public Data
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
#endif /* __ARCH_AVR_SRC_AT91UC3_AT91UC3_PM_H */