source: SVN/cambria/redboot/packages/hal/arm/xscale/cores/current/src/xscale_misc.c @ 1

Last change on this file since 1 was 1, checked in by Tim Harvey, 2 years ago

restored latest version of files from server backup

Signed-off-by: Tim Harvey <tharvey@…>

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1//==========================================================================
2//
3//      xscale_misc.c
4//
5//      HAL misc support code for Intel XScale cores.
6//
7//==========================================================================
8//####ECOSGPLCOPYRIGHTBEGIN####
9// -------------------------------------------
10// This file is part of eCos, the Embedded Configurable Operating System.
11// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
12//
13// eCos is free software; you can redistribute it and/or modify it under
14// the terms of the GNU General Public License as published by the Free
15// Software Foundation; either version 2 or (at your option) any later version.
16//
17// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
18// WARRANTY; without even the implied warranty of MERCHANTABILITY or
19// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
20// for more details.
21//
22// You should have received a copy of the GNU General Public License along
23// with eCos; if not, write to the Free Software Foundation, Inc.,
24// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
25//
26// As a special exception, if other files instantiate templates or use macros
27// or inline functions from this file, or you compile this file and link it
28// with other works to produce a work based on this file, this file does not
29// by itself cause the resulting work to be covered by the GNU General Public
30// License. However the source code for this file must still be made available
31// in accordance with section (3) of the GNU General Public License.
32//
33// This exception does not invalidate any other reasons why a work based on
34// this file might be covered by the GNU General Public License.
35//
36// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
37// at http://sources.redhat.com/ecos/ecos-license/
38// -------------------------------------------
39//####ECOSGPLCOPYRIGHTEND####
40//==========================================================================
41//#####DESCRIPTIONBEGIN####
42//
43// Author(s):    msalter
44// Contributors: msalter
45// Date:         2002-10-18
46// Purpose:      XScale core HAL support
47// Description:  Implementations of HAL interfaces
48//
49//####DESCRIPTIONEND####
50//
51//========================================================================*/
52
53#include <pkgconf/hal.h>
54#include <pkgconf/system.h>
55#include CYGBLD_HAL_PLATFORM_H
56#include CYGHWR_MEMORY_LAYOUT_H
57
58void
59hal_xscale_core_init(void)
60{
61    // Initialize debug control unit to sane state
62    asm volatile ("mov  r0,#0\n"
63                  "mcr  p15,0,r0,c14,c8,0\n"   // ibcr0
64                  "mcr  p15,0,r0,c14,c9,0\n"   // ibcr1
65                  "mcr  p15,0,r0,c14,c4,0\n"   // dbcon
66                  "mov  r0,#0x80000000\n"
67                  "mcr  p14,0,r0,c10,c0,0\n"   // dcsr
68                  : /* no outputs */
69                  : /* no inputs  */
70                  : "r0" );
71}
72
73/*------------------------------------------------------------------------*/
74// EOF xscale_misc.c
75
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