forked from Imagelibrary/rtems
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/**
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* @file
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*
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* This routine is an implementation of the bsp_work_area_initialize()
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* that can be used by all BSPs following linkcmds conventions
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* regarding heap, stack, and workspace allocation.
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*/
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/*
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* COPYRIGHT (c) 1989-2008.
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* On-Line Applications Research Corporation (OAR).
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*
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* Copyright (c) 2011-2012 embedded brains GmbH.
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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.org/license/LICENSE.
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*/
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#include <bsp.h>
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#include <bsp/bootcard.h>
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#ifdef BSP_INTERRUPT_STACK_AT_WORK_AREA_BEGIN
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#include <rtems/config.h>
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#endif
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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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#else
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extern char RamBase[];
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extern char RamSize[];
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#endif
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void bsp_work_area_initialize(void)
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{
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uintptr_t work_base = (uintptr_t) WorkAreaBase;
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uintptr_t ram_end;
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#ifdef USE_UBOOT
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ram_end = (uintptr_t) bsp_uboot_board_info.bi_memstart +
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bsp_uboot_board_info.bi_memsize;
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#else
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ram_end = (uintptr_t)RamBase + (uintptr_t)RamSize;
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#endif
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#ifdef BSP_INTERRUPT_STACK_AT_WORK_AREA_BEGIN
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work_base += rtems_configuration_get_interrupt_stack_size();
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#endif
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bsp_work_area_initialize_default( (void *) work_base, ram_end - work_base );
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}
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