atsam-clock-config.h

/* SPDX-License-Identifier: BSD-2-Clause */
 
/*
 * Copyright (c) 2017 embedded brains GmbH & Co. KG
 *
 * 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.
 *
 * 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 ATSAM_CLOCK_CONFIG_H
#define ATSAM_CLOCK_CONFIG_H
 
#include <rtems.h>
#include <bsp/linker-symbols.h>
#include <bspopts.h>
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
#if ATSAM_CHANGE_CLOCK_FROM_SRAM != 0
/* Note: fast_text is the simplest section to put this code into. Other
 * possibilities would include creating a new section. */
#define ATSAM_START_SRAM_SECTION BSP_FAST_TEXT_SECTION
#else
#define ATSAM_START_SRAM_SECTION
#endif
 
struct atsam_clock_config {
  /* Initialization value for the PMC_PLLAR. */
  uint32_t pllar_init;
  /* Initialization value for the PMC_MCKR. */
  uint32_t mckr_init;
  /* Resulting frequency in Hz. */
  uint32_t mck_freq;
};
 
ATSAM_START_SRAM_SECTION
extern const struct atsam_clock_config atsam_clock_config;
 
#define BOARD_MCK (atsam_clock_config.mck_freq)
 
typedef struct BOARD_Sdram_Config {
  uint32_t sdramc_tr;
  uint32_t sdramc_cr;
  uint32_t sdramc_mdr;
  uint32_t sdramc_cfr1;
  uint32_t sdramc_lpr;
} atsam_sdram_config;
 
ATSAM_START_SRAM_SECTION
extern const atsam_sdram_config BOARD_Sdram_Config;
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* ATSAM_CLOCK_CONFIG_H */