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/*
* This routine is an implementation of the bsp_work_area_initialize()
* that can be used by all BSPs following linkcmds conventions
* regarding heap, stack, and workspace allocation.
*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* Copyright (c) 2011-2012 embedded brains GmbH.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#include <bsp.h>
#include <bsp/bootcard.h>
#ifdef BSP_INTERRUPT_STACK_AT_WORK_AREA_BEGIN
#include <rtems/config.h>
#endif
#if defined(HAS_UBOOT) && !defined(BSP_DISABLE_UBOOT_WORK_AREA_CONFIG)
#define USE_UBOOT
#endif
/*
* These are provided by the linkcmds for ALL of the BSPs which use this file.
*/
extern char WorkAreaBase[];
/*
* We may get the size information from U-Boot or the linker scripts.
*/
#ifdef USE_UBOOT
#include <bsp/u-boot.h>
#else
extern char RamBase[];
extern char RamSize[];
#endif
void bsp_work_area_initialize(void)
{
uintptr_t work_base = (uintptr_t) WorkAreaBase;
uintptr_t ram_end;
#ifdef USE_UBOOT
ram_end = (uintptr_t) bsp_uboot_board_info.bi_memstart +
bsp_uboot_board_info.bi_memsize;
#else
ram_end = (uintptr_t)RamBase + (uintptr_t)RamSize;
#endif
#ifdef BSP_INTERRUPT_STACK_AT_WORK_AREA_BEGIN
work_base += Configuration.interrupt_stack_size;
#endif
bsp_work_area_initialize_default( (void *) work_base, ram_end - work_base );
}
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