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90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup RTEMSScoreMemory
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*
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* @ingroup RTEMSBSPsSharedStartup
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*
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* @brief This source file contains the default implementation of
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* _Memory_Get().
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*/
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/*
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* Copyright (C) 2011, 2019 embedded brains GmbH & Co. KG
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*
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* Copyright (C) 1989, 2009 On-Line Applications Research Corporation (OAR)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <bsp.h>
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#if defined(HAS_UBOOT) && !defined(BSP_DISABLE_UBOOT_WORK_AREA_CONFIG)
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#define USE_UBOOT
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#endif
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/*
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* These are provided by the linkcmds for ALL of the BSPs which use this file.
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*/
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extern char WorkAreaBase[];
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/*
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* We may get the size information from U-Boot or the linker scripts.
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*/
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#ifdef USE_UBOOT
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#include <bsp/u-boot.h>
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#include <rtems/sysinit.h>
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static Memory_Area _Memory_Areas[ 1 ];
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static void bsp_memory_initialize( void )
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{
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char *end;
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end = (char *) bsp_uboot_board_info.bi_memstart
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+ bsp_uboot_board_info.bi_memsize;
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_Memory_Initialize( &_Memory_Areas[ 0 ], WorkAreaBase, end );
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}
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RTEMS_SYSINIT_ITEM(
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bsp_memory_initialize,
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RTEMS_SYSINIT_MEMORY,
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RTEMS_SYSINIT_ORDER_MIDDLE
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);
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#else /* !USE_UBOOT */
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extern char RamEnd[];
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static Memory_Area _Memory_Areas[] = {
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MEMORY_INITIALIZER(WorkAreaBase, RamEnd)
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};
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#endif /* USE_UBOOT */
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static const Memory_Information _Memory_Information =
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MEMORY_INFORMATION_INITIALIZER( _Memory_Areas );
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const Memory_Information *_Memory_Get( void )
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{
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return &_Memory_Information;
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}
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