#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	set	0x01f80000, %l0		! MEC register base address	ld	[%l0], %l1		! Check if MEC has been initialised	set	0xfe080000, %l2		! by checking baud rate register	andcc	%l2, %l1, %g0			bne	2f			! skip	nop	! Set memory according to simulator config        st      %g0, [%l0 + 0x64]       ! Disable watchdog for now        ld      [%l0], %g1        or      %g1, 1, %g1        st      %g1, [%l0]              ! Enable power down	st	%g0, [%l0 + 0x18]	! No waitstates        ld      [%l0 + 0xF8], %g1	! load simulator rom size	clr	%l2	srl	%g1, 17, %g1		! calculate appropriate MEC rom size1:	srl	%g1, 1, %g1	tst	%g1	bne,a	1b	inc	%l2	sll	%l2, 8, %l2        ld      [%l0 + 0xF4], %g2	! load simulator ram size	srl	%g2, 18, %g1		! calculate appropriate MEC ram size1:	srl	%g1, 1, %g1	tst	%g1	bne,a	1b	inc	%l2	sll	%l2, 10, %l2	st	%l2, [%l0 + 0x10]	! program MEC memory config register	set	0x2000000, %l2	add	%g2, %l2, %fp	sub	%fp, 96*4, %sp	!	st	%g0, [%sp]		! probe for FPU!	ld	[%sp], %fsr        set     13, %l1        st      %l1, [%l0 + 0x84]       ! RTC scaler = 132:        set     reset_vector, %g1        set     0x0d00, %l1        st      %l1, [%g1 + 0x7c0]      ! Store TCR mirror        st      %l1, [%l0 + 0x98]       ! Start RTC	mov	%g3, %o74:	! 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 */