| /**************************************************************************** |
| * arch/arm/src/nrf52/hardware/nrf52_clock.h |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. The |
| * ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| * |
| ****************************************************************************/ |
| |
| #ifndef __ARCH_ARM_SRC_NRF52_HARDWARE_NRF52_CLOCK_H |
| #define __ARCH_ARM_SRC_NRF52_HARDWARE_NRF52_CLOCK_H |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| #include "hardware/nrf52_memorymap.h" |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| /* Configuration ************************************************************/ |
| |
| #if defined(CONFIG_ARCH_CHIP_NRF52832) |
| # undef HAVE_CLOCK_CALTIMER_EVENTS |
| # undef HAVE_CLOCK_HFXODEBOUNCE |
| #elif defined(CONFIG_ARCH_CHIP_NRF52833) |
| # define HAVE_CLOCK_CALTIMER_EVENTS |
| # define HAVE_CLOCK_HFXODEBOUNCE |
| #elif defined(CONFIG_ARCH_CHIP_NRF52840) |
| # define HAVE_CLOCK_CALTIMER_EVENTS |
| # define HAVE_CLOCK_HFXODEBOUNCE |
| #else |
| # error Unknown NRF52 chip ! |
| #endif |
| |
| /* Register offsets *********************************************************/ |
| |
| #define NRF52_CLOCK_TASKS_HFCLKSTART_OFFSET 0x0000 /* Start HFCLK crystal oscillator */ |
| #define NRF52_CLOCK_TASKS_HFCLKSTOP_OFFSET 0x0004 /* Stop HFCLK crystal oscillator */ |
| #define NRF52_CLOCK_TASKS_LFCLKSTART_OFFSET 0x0008 /* Start LFCLK source */ |
| #define NRF52_CLOCK_TASKS_LFCLKSTOP_OFFSET 0x000c /* Stop LFCLK source */ |
| #define NRF52_CLOCK_TASKS_CAL_OFFSET 0x0010 /* Start calibration of LFRC oscillator */ |
| #define NRF52_CLOCK_TASKS_CTSTART_OFFSET 0x0014 /* Start calibration timer */ |
| #define NRF52_CLOCK_TASKS_CTSTOP_OFFSET 0x0018 /* Stop calibration timer */ |
| #define NRF52_CLOCK_EVENTS_HFCLKSTARTED_OFFSET 0x0100 /* HFCLK oscillator started */ |
| #define NRF52_CLOCK_EVENTS_LFCLKSTARTED_OFFSET 0x0104 /* LFCLK started */ |
| #define NRF52_CLOCK_EVENTS_DONE_OFFSET 0x010c /* Calibration of LFCLK RC oscillator complete event */ |
| #define NRF52_CLOCK_EVENTS_CTTO_OFFSET 0x0110 /* Calibration timer timeout */ |
| #ifdef HAVE_CLOCK_CALTIMER_EVENTS |
| # define NRF52_CLOCK_EVENTS_CSTARTED_OFFSET 0x0128 /* Calibration timer has been started */ |
| # define NRF52_CLOCK_EVENTS_CTSTOPPED_OFFSET 0x012c /* Calibration timer has been stopped */ |
| #endif |
| #define NRF52_CLOCK_INTENSET_OFFSET 0x0304 /* Enable interrupt */ |
| #define NRF52_CLOCK_INTENCLR_OFFSET 0x0308 /* Disable interrupt */ |
| #define NRF52_CLOCK_HFCLKRUN_OFFSET 0x0408 /* Status indicating that HFCLKSTART task has been triggered */ |
| #define NRF52_CLOCK_HFCLKSTAT_OFFSET 0x040c /* HFCLK status */ |
| #define NRF52_CLOCK_LFCLKRUN_OFFSET 0x0414 /* Status indicating that LFCLKSTART task has been triggered */ |
| #define NRF52_CLOCK_LFCLKSTAT_OFFSET 0x0418 /* LFCLK status */ |
| #define NRF52_CLOCK_LFCLKSRCCOPY_OFFSET 0x041c /* Copy of LFCLKSRC register, set when LFCLKSTART task was triggered */ |
| #define NRF52_CLOCK_LFCLKSRC_OFFSET 0x0518 /* Clock source for the LFCLK */ |
| #ifdef HAVE_CLOCK_HFXODEBOUNCE |
| # define NRF52_CLOCK_HFXODEBOUNCE_OFFSET 0x0528 /* HFXO debounce time */ |
| #endif |
| #define NRF52_CLOCK_CTIV_OFFSET 0x0538 /* Calibration timer interval */ |
| #define NRF52_CLOCK_TRACECONFIG_OFFSET 0x055c /* Clocking options for the Trace Port debug interface */ |
| |
| /* Register Addresses *******************************************************/ |
| |
| #define NRF52_CLOCK_TASKS_HFCLKSTART (NRF52_CLOCK_BASE + NRF52_CLOCK_TASKS_HFCLKSTART_OFFSET) |
| #define NRF52_CLOCK_TASKS_HFCLKSTOP (NRF52_CLOCK_BASE + NRF52_CLOCK_TASKS_HFCLKSTOP_OFFSET) |
| #define NRF52_CLOCK_TASKS_LFCLKSTART (NRF52_CLOCK_BASE + NRF52_CLOCK_TASKS_LFCLKSTART_OFFSET) |
| #define NRF52_CLOCK_TASKS_LFCLKSTOP (NRF52_CLOCK_BASE + NRF52_CLOCK_TASKS_LFCLKSTOP_OFFSET) |
| #define NRF52_CLOCK_TASKS_CAL (NRF52_CLOCK_BASE + NRF52_CLOCK_TASKS_CAL_OFFSET) |
| #define NRF52_CLOCK_TASKS_CTSTART (NRF52_CLOCK_BASE + NRF52_CLOCK_TASKS_CTSTART_OFFSET) |
| #define NRF52_CLOCK_TASKS_CTSTOP (NRF52_CLOCK_BASE + NRF52_CLOCK_TASKS_CTSTOP_OFFSET) |
| #define NRF52_CLOCK_EVENTS_HFCLKSTARTED (NRF52_CLOCK_BASE + NRF52_CLOCK_EVENTS_HFCLKSTARTED_OFFSET) |
| #define NRF52_CLOCK_EVENTS_LFCLKSTARTED (NRF52_CLOCK_BASE + NRF52_CLOCK_EVENTS_LFCLKSTARTED_OFFSET) |
| #define NRF52_CLOCK_EVENTS_DONE (NRF52_CLOCK_BASE + NRF52_CLOCK_EVENTS_DONE_OFFSET) |
| #define NRF52_CLOCK_EVENTS_CTTO (NRF52_CLOCK_BASE + NRF52_CLOCK_EVENTS_CTTO_OFFSET) |
| #ifdef HAVE_CLOCK_CALTIMER_EVENTS |
| # define NRF52_CLOCK_EVENTS_CSTARTED (NRF52_CLOCK_BASE + NRF52_CLOCK_EVENTS_CSTARTED_OFFSET) |
| # define NRF52_CLOCK_EVENTS_CSTOPPED (NRF52_CLOCK_BASE + NRF52_CLOCK_EVENTS_CSTOPPED_OFFSET) |
| #endif |
| #define NRF52_CLOCK_INTENSET (NRF52_CLOCK_BASE + NRF52_CLOCK_INTENSET_OFFSET) |
| #define NRF52_CLOCK_INTENCLR (NRF52_CLOCK_BASE + NRF52_CLOCK_INTENCLR_OFFSET) |
| #define NRF52_CLOCK_HFCLKRUN (NRF52_CLOCK_BASE + NRF52_CLOCK_HFCLKRUN_OFFSET) |
| #define NRF52_CLOCK_HFCLKSTAT (NRF52_CLOCK_BASE + NRF52_CLOCK_HFCLKSTAT_OFFSET) |
| #define NRF52_CLOCK_LFCLKRUN (NRF52_CLOCK_BASE + NRF52_CLOCK_LFCLKRUN_OFFSET) |
| #define NRF52_CLOCK_LFCLKSTAT (NRF52_CLOCK_BASE + NRF52_CLOCK_LFCLKSTAT_OFFSET) |
| #define NRF52_CLOCK_LFCLKSRCCOPY (NRF52_CLOCK_BASE + NRF52_CLOCK_LFCLKSRCCOPY_OFFSET) |
| #define NRF52_CLOCK_LFCLKSRC (NRF52_CLOCK_BASE + NRF52_CLOCK_LFCLKSRC_OFFSET) |
| #ifdef HAVE_CLOCK_HFXODEBOUNCE |
| # define NRF52_CLOCK_HFXODEBOUNCE (NRF52_CLOCK_BASE + NRF52_CLOCK_HFXODEBOUNCE_OFFSET) |
| #endif |
| #define NRF52_CLOCK_CTIV (NRF52_CLOCK_BASE + NRF52_CLOCK_CTIV_OFFSET) |
| #define NRF52_CLOCK_TRACECONFIG (NRF52_CLOCK_BASE + NRF52_CLOCK_TRACECONFIG_OFFSET) |
| |
| /* Register Bitfield Definitions ********************************************/ |
| |
| /* HFCLKRUN Register */ |
| |
| #define CLOCK_HFCLKRUN_STATUS (1 << 0) /* Bit 0: HFCLSTART task triggered status */ |
| |
| /* HFCLKSTAT Register */ |
| |
| #define CLOCK_HFCLKSTAT_SRC_SHIFT (0) /* Bit 0: Source of HFCLK */ |
| #define CLOCK_HFCLKSTAT_SRC_MASK (1 << CLOCK_HFCLKSTAT_SRC_SHIFT) |
| # define CLOCK_HFCLKSTAT_SRC_RC (0 << CLOCK_HFCLKSTAT_SRC_SHIFT) /* 0b0: 64 MHz internal oscillator (HFINT) */ |
| # define CLOCK_HFCLKSTAT_SRC_XTAL (1 << CLOCK_HFCLKSTAT_SRC_SHIFT) /* 0b1: 64 MHz crystal oscilator (HFXO) */ |
| #define CLOCK_HFCLKSTAT_STATE (1 << 16) /* Bit 16: HFCLK state */ |
| |
| /* LFCLKRUN Register */ |
| |
| #define CLOCK_LFCLKRUN_STATUS (1 << 0) /* Bit 0: LFCLKSTART task triggered status */ |
| |
| /* LFCLKSTAT Register */ |
| |
| #define CLOCK_LFCLKSTAT_SRC_SHIFT (0) /* Bits 0-1: Source of LFCLK */ |
| #define CLOCK_LFCLKSTAT_SRC_MASK (3 << CLOCK_LFCLKSTAT_SRC_SHIFT) |
| # define CLOCK_LFCLKSTAT_SRC_RC (0 << CLOCK_LFCLKSTAT_SRC_SHIFT) /* 0b0: RC oscillator (LFRC) */ |
| # define CLOCK_LFCLKSTAT_SRC_XTAL (1 << CLOCK_LFCLKSTAT_SRC_SHIFT) /* 0b1: crystal oscillator (LFXO) */ |
| # define CLOCK_LFCLKSTAT_SRC_SYNTH (2 << CLOCK_LFCLKSTAT_SRC_SHIFT) /* 0b2: synthesized from HFCLK (LFSYNT) */ |
| #define CLOCK_LFCLKSTAT_STATE (1 << 16) /* Bit 16: LFCLKSTAT state */ |
| |
| /* LFCLKSRC Register */ |
| |
| #define CLOCK_LFCLKSRC_SRC_SHIFT (0) /* Bits 0-1: LFRC clock source */ |
| #define CLOCK_LFCLKSRC_SRC_MASK (3 << CLOCK_LFCLKSRC_SRC_SHIFT) |
| # define CLOCK_LFCLKSRC_SRC_RC (0 << CLOCK_LFCLKSRC_SRC_SHIFT) |
| # define CLOCK_LFCLKSRC_SRC_XTAL (1 << CLOCK_LFCLKSRC_SRC_SHIFT) |
| # define CLOCK_LFCLKSRC_SRC_SYNTH (2 << CLOCK_LFCLKSRC_SRC_SHIFT) |
| #define CLOCK_LFCLKSRC_BYPASS (1 << 16) /* Bit 16: Enable/disable bypass of LFCLK crystal oscillator */ |
| #define CLOCK_LFCLKSRC_EXTERNAL (1 << 17) /* Bit 17: Enable/disable external source for LFCLK */ |
| |
| #endif /* __ARCH_ARM_SRC_NRF52_HARDWARE_NRF52_CLOCK_H */ |
