forked from Imagelibrary/rtems
47a3cd8f73
The work areas (RTEMS work space and C program heap) will be initialized now in a separate step and are no longer part of rtems_initialize_data_structures(). Initialization is performed with tables of Heap_Area entries. This allows usage of scattered memory areas present on various small scale micro-controllers. The sbrk() support API changes also. The bsp_sbrk_init() must now deal with a minimum size for the first memory chunk to take the configured work space size into account.
36 lines
824 B
C
36 lines
824 B
C
/**
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* @file
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*
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* @ingroup tqm8xx
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*
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* @brief Source for BSP Get Work Area Memory
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*/
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/*
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* Copyright (c) 2008-2012 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Obere Lagerstr. 30
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*/
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#include <libcpu/powerpc-utility.h>
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#include <bsp.h>
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#include <bsp/bootcard.h>
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void bsp_work_area_initialize(void)
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{
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char *ram_end = (char *) (TQM_BD_INFO.sdram_size - (uint32_t)TopRamReserved);
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void *area_start = bsp_work_area_start;
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uintptr_t area_size = (uintptr_t) ram_end - (uintptr_t) bsp_work_area_start;
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bsp_work_area_initialize_default( area_start, area_size );
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}
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