hal_platform_setup.h

ecos为实时嵌入式操作系统

#ifndef CYGONCE_HAL_PLATFORM_SETUP_H
#define CYGONCE_HAL_PLATFORM_SETUP_H

/*=============================================================================
//
//      hal_platform_setup.h
//
//      Platform specific support for HAL (assembly code)
//
//=============================================================================
//####COPYRIGHTBEGIN####
//
// -------------------------------------------
// The contents of this file are subject to the Cygnus eCos Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License.  You may obtain a copy of the License at
// http://sourceware.cygnus.com/ecos
// 
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
// License for the specific language governing rights and limitations under
// the License.
// 
// The Original Code is eCos - Embedded Cygnus Operating System, released
// September 30, 1998.
// 
// The Initial Developer of the Original Code is Cygnus.  Portions created
// by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions.  All Rights Reserved.
// -------------------------------------------
//
//####COPYRIGHTEND####
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    gthomas
// Contributors: gthomas
// Date:        1999-04-13
// Purpose:     ARM/AEB-1 platform specific support routines
// Description: 
// Usage:       #include <cyg/hal/hal_platform_setup.h>
//
//####DESCRIPTIONEND####
//
//===========================================================================*/

#if CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE==4096
// Override default to a more sensible value
#undef  CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
#define CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE 2048
#endif

#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
#define PLATFORM_SETUP1                                                       \
	ldr	r1,=segment_register_setups                                  ;\
10:	ldr	r2,[r1,#0]	/* segment address */                        ;\
	cmp	r2,#0                                                        ;\
	beq	20f                                                          ;\
	ldr	r3,[r1,#4]	/* segment start */                          ;\
	str	r3,[r2,#0x00]                                                ;\
	ldr	r3,[r1,#8]	/* segment end */                            ;\
	str	r3,[r2,#0x20]                                                ;\
	ldr	r3,[r1,#12]	/* segment flags */                          ;\
	str	r3,[r2,#0x40]                                                ;\
	add	r1,r1,#16	/* next segment  */                          ;\
	b	10b                                                          ;\
segment_register_setups:                                                     ;\
	.long	0xFFFFA008,0x00008000,0x00028000,0x00007804  /* segment 2 */ ;\
	.long	0xFFFFA00C,0x00028000,0x01000000,0x00000000  /* segment 3 */ ;\
	.long 0                                                              ;\
20:
#else
#define PLATFORM_SETUP1
#endif

/*---------------------------------------------------------------------------*/
/* end of hal_platform_setup.h                                               */
#endif /* CYGONCE_HAL_PLATFORM_SETUP_H */