source: SVN/rincon/u-boot/cpu/mcf5227x/cpu.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 1.9 KB
Line 
1/*
2 *
3 * (C) Copyright 2000-2003
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 *
6 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
7 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
8 *
9 * See file CREDITS for list of people who contributed to this
10 * project.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * MA 02111-1307 USA
26 */
27
28#include <common.h>
29#include <watchdog.h>
30#include <command.h>
31
32#include <asm/immap.h>
33
34DECLARE_GLOBAL_DATA_PTR;
35
36int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
37{
38        volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM);
39        udelay(1000);
40        rcm->rcr |= RCM_RCR_SOFTRST;
41
42        /* we don't return! */
43        return 0;
44};
45
46int checkcpu(void)
47{
48        volatile ccm_t *ccm = (ccm_t *) MMAP_CCM;
49        u16 msk;
50        u16 id = 0;
51        u8 ver;
52
53        puts("CPU:   ");
54        msk = (ccm->cir >> 6);
55        ver = (ccm->cir & 0x003f);
56        switch (msk) {
57        case 0x6c:
58                id = 52277;
59                break;
60        }
61
62        if (id) {
63                printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
64                       ver);
65                printf("       CPU CLK %d Mhz BUS CLK %d Mhz FLB CLK %d Mhz\n",
66                       (int)(gd->cpu_clk / 1000000),
67                       (int)(gd->bus_clk / 1000000),
68                       (int)(gd->flb_clk / 1000000));
69                printf("       INP CLK %d Mhz VCO CLK %d Mhz\n",
70                       (int)(gd->inp_clk / 1000000),
71                       (int)(gd->vco_clk / 1000000));
72        }
73
74        return 0;
75}
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