#ifndef CYGONCE_HAL_HALBOOT_SI /* -*-asm-*- */#define CYGONCE_HAL_HALBOOT_SI// ====================================================================////	<platform>/halboot.si////	HAL bootup platform-oriented code (assembler)//// ====================================================================//####ECOSGPLCOPYRIGHTBEGIN####// -------------------------------------------// This file is part of eCos, the Embedded Configurable Operating System.// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.//// eCos is free software; you can redistribute it and/or modify it under// the terms of the GNU General Public License as published by the Free// Software Foundation; either version 2 or (at your option) any later version.//// eCos is distributed in the hope that it will be useful, but WITHOUT ANY// WARRANTY; without even the implied warranty of MERCHANTABILITY or// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License// for more details.//// You should have received a copy of the GNU General Public License along// with eCos; if not, write to the Free Software Foundation, Inc.,// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.//// As a special exception, if other files instantiate templates or use macros// or inline functions from this file, or you compile this file and link it// with other works to produce a work based on this file, this file does not// by itself cause the resulting work to be covered by the GNU General Public// License. However the source code for this file must still be made available// in accordance with section (3) of the GNU General Public License.//// This exception does not invalidate any other reasons why a work based on// this file might be covered by the GNU General Public License.//// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.// at http://sources.redhat.com/ecos/ecos-license/// -------------------------------------------//####ECOSGPLCOPYRIGHTEND####// ====================================================================//#####DESCRIPTIONBEGIN####//// Author(s): 	        hmt// Contributors:	hmt// Date:	        1999-02-01// Purpose:	        Bootup code, platform oriented.// Description:////####DESCRIPTIONEND####//// ====================================================================// External Platform Initial Setup//// This should set up RAM and caches, and calm down any external// interrupt sources.//// It is just plain included in vectors.S//// RAM has not yet been touched at all; in fact all you have is a// register window selected.	! Empty macro for debugging vectors.S	.macro led val        .endm	! First of all - before setting up the stack - set	! the available memory to the full 4Mb;#define MEC_MEMCFG (0x01f80010)	sethi	%hi( MEC_MEMCFG ), %g1	ld	[ %g1 + %lo(MEC_MEMCFG) ], %g2	mov	7, %g3	sll	%g3, 10, %g3	! Bits 10,11,12 are of interest	andn	%g2, %g3, %g2	mov	4, %g3	sll	%g3, 10, %g3	! Bits 10,11,12 are of interest	or	%g2, %g3, %g2	! Shift 256k left 4 times to	st	%g2, [ %g1 + %lo(MEC_MEMCFG) ]					! ...give memsize of 4Mb	! then copy the branch instructions into the vector	rd	%tbr, %g1	andn	%g1, 0xfff, %g1		! clear non-address bits	sethi	%hi(real_vector_instructions), %l0	or	%l0, %lo(real_vector_instructions), %l0	ld	[ %l0 ], %l1	st	%l1, [ %g1 ]		! into the vector	ld	[ %l0 + 4 ], %l1	st	%l1, [ %g1 + 4 ]	! into the vector#endif  /* CYGONCE_HAL_HALBOOT_SI *//* EOF halboot.si */