/* SPDX-License-Identifier: BSD-2-Clause */

/**
 * @file
 *
 * @ingroup RTEMSBSPsPowerPCMPC55XX
 *
 * @brief System Integration Unit Access (SIU).
 */

/*
 * Copyright (c) 2010 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.
 */

#include <mpc55xx/regs.h>
#include <mpc55xx/mpc55xx.h>
#include <mpc55xx/siu.h>

rtems_status_code mpc55xx_siu_pcr_init(volatile struct SIU_tag *siu,
				       const mpc55xx_siu_pcr_entry_t *pcr_entry)
{
  int idx,cnt;
  /*
   * repeat, until end of list reached (pcr_cnt = 0)
   */
  while ((pcr_entry != NULL) &&
	 (pcr_entry->pcr_cnt > 0)) {
    idx = pcr_entry->pcr_idx;
    for (cnt = pcr_entry->pcr_cnt;cnt > 0;cnt--) {
      siu->PCR[idx++].R = pcr_entry->pcr_val.R;
    }
    pcr_entry++;
  }
  return RTEMS_SUCCESSFUL;
}