tqm8xx/start/bspgetworkarea.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSScoreMemory
0007  *
0008  * @ingroup tqm8xx
0009  *
0010  * @brief This source file contains the powerpc/tqm8xx implementation of
0011  *   _Memory_Get().
0012  */
0013
0014 /*
0015  * Copyright (C) 2008, 2019 embedded brains GmbH & Co. KG
0016  *
0017  * Copyright (C) 2008, 2009 On-Line Applications Research Corporation (OAR)
0018  *
0019  * Redistribution and use in source and binary forms, with or without
0020  * modification, are permitted provided that the following conditions
0021  * are met:
0022  * 1. Redistributions of source code must retain the above copyright
0023  *    notice, this list of conditions and the following disclaimer.
0024  * 2. Redistributions in binary form must reproduce the above copyright
0025  *    notice, this list of conditions and the following disclaimer in the
0026  *    documentation and/or other materials provided with the distribution.
0027  *
0028  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0029  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0030  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0031  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0032  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0033  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0034  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0035  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0036  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0037  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0038  * POSSIBILITY OF SUCH DAMAGE.
0039  */
0040
0041 #include <bsp.h>
0042 #include <bsp/bootcard.h>
0043 #include <bsp/linker-symbols.h>
0044
0045 #include <rtems/sysinit.h>
0046
0047 static Memory_Area _Memory_Areas[1];
0048
0049 static const Memory_Information _Memory_Information =
0050   MEMORY_INFORMATION_INITIALIZER(_Memory_Areas);
0051
0052 static void bsp_memory_initialize(void)
0053 {
0054   void *end = (void *) (TQM_BD_INFO.sdram_size - (uintptr_t)TopRamReserved);
0055
0056   _Memory_Initialize(&_Memory_Areas[0], bsp_section_work_begin, end);
0057 }
0058
0059 RTEMS_SYSINIT_ITEM(
0060   bsp_memory_initialize,
0061   RTEMS_SYSINIT_MEMORY,
0062   RTEMS_SYSINIT_ORDER_MIDDLE
0063 );
0064
0065 const Memory_Information *_Memory_Get(void)
0066 {
0067   return &_Memory_Information;
0068 }