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TsiChungLiew4a442d32007-08-16 19:23:50 -05001/*
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>
Ben Warren89973f82008-08-31 22:22:04 -070031#include <netdev.h>
TsiChungLiew4a442d32007-08-16 19:23:50 -050032
33#include <asm/immap.h>
34
35DECLARE_GLOBAL_DATA_PTR;
36
37int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
38{
39 volatile ccm_t *ccm = (ccm_t *) MMAP_CCM;
40
41 ccm->rcr = CCM_RCR_SOFTRST;
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 0x31:
58 id = 5235;
59 break;
60 }
61
62 if (id) {
Wolfgang Denk08ef89e2008-10-19 02:35:49 +020063 char buf1[32], buf2[32];
64
TsiChungLiew4a442d32007-08-16 19:23:50 -050065 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
66 ver);
Wolfgang Denk08ef89e2008-10-19 02:35:49 +020067 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
TsiChung Liew1b270842008-10-22 11:55:30 +000068 strmhz(buf1, gd->cpu_clk),
69 strmhz(buf2, gd->bus_clk));
TsiChungLiew4a442d32007-08-16 19:23:50 -050070 }
71
72 return 0;
73};
74
75#if defined(CONFIG_WATCHDOG)
76/* Called by macro WATCHDOG_RESET */
77void watchdog_reset(void)
78{
79 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
80
81 wdp->sr = 0x5555; /* Count register */
82 asm("nop");
83 wdp->sr = 0xAAAA; /* Count register */
84}
85
86int watchdog_disable(void)
87{
88 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
89
90 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
91 wdp->cr |= WTM_WCR_HALTED; /* halted watchdog timer */
92
93 puts("WATCHDOG:disabled\n");
94 return (0);
95}
96
97int watchdog_init(void)
98{
99 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
100 u32 wdog_module = 0;
101
102 /* set timeout and enable watchdog */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200103 wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT);
TsiChungLiew4a442d32007-08-16 19:23:50 -0500104 wdog_module |= (wdog_module / 8192);
105 wdp->mr = wdog_module;
106
107 wdp->cr = WTM_WCR_EN;
108 puts("WATCHDOG:enabled\n");
109
110 return (0);
111}
112#endif /* CONFIG_WATCHDOG */
Ben Warren86882b82008-08-26 22:16:25 -0700113
114#if defined(CONFIG_MCFFEC)
115/* Default initializations for MCFFEC controllers. To override,
116 * create a board-specific function called:
117 * int board_eth_init(bd_t *bis)
118 */
119
Ben Warren86882b82008-08-26 22:16:25 -0700120int cpu_eth_init(bd_t *bis)
121{
122 return mcffec_initialize(bis);
123}
124#endif