source: SVN/rincon/u-boot/cpu/74xx_7xx/cpu_init.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 23 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 1.5 KB
Line 
1/*
2 * (C) Copyright 2001
3 * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/*
25 * cpu_init.c - low level cpu init
26 *
27 * there's really nothing going on here yet.  future work area?
28 */
29
30#include <common.h>
31#include <74xx_7xx.h>
32
33/*
34 * Breath some life into the CPU...
35 *
36 * there's basically nothing to do here since the memory controller
37 * isn't on the CPU in this case.
38 */
39void
40cpu_init_f (void)
41{
42        switch (get_cpu_type()) {
43        case CPU_7450:
44        case CPU_7455:
45        case CPU_7457:
46        case CPU_7447A:
47        case CPU_7448:
48                /* enable the timebase bit in HID0 */
49                set_hid0(get_hid0() | 0x4000000);
50                break;
51        default:
52                /* do nothing */
53                break;
54        }
55}
56
57/*
58 * initialize higher level parts of CPU like timers
59 */
60int cpu_init_r (void)
61{
62        return (0);
63}
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