3 * (C) Copyright 2000-2003
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
7 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
9 * See file CREDITS for list of people who contributed to this
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.
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.
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,
33 #include <asm/immap.h>
35 DECLARE_GLOBAL_DATA_PTR;
37 int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
39 volatile ccm_t *ccm = (ccm_t *) MMAP_CCM;
41 ccm->rcr = CCM_RCR_SOFTRST;
42 /* we don't return! */
48 volatile ccm_t *ccm = (ccm_t *) MMAP_CCM;
54 msk = (ccm->cir >> 6);
55 ver = (ccm->cir & 0x003f);
63 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
65 printf(" CPU CLK %d Mhz BUS CLK %d Mhz\n",
66 (int)(gd->cpu_clk / 1000000),
67 (int)(gd->bus_clk / 1000000));
73 #if defined(CONFIG_WATCHDOG)
74 /* Called by macro WATCHDOG_RESET */
75 void watchdog_reset(void)
77 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
79 wdp->sr = 0x5555; /* Count register */
81 wdp->sr = 0xAAAA; /* Count register */
84 int watchdog_disable(void)
86 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
88 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
89 wdp->cr |= WTM_WCR_HALTED; /* halted watchdog timer */
91 puts("WATCHDOG:disabled\n");
95 int watchdog_init(void)
97 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
100 /* set timeout and enable watchdog */
101 wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT);
102 wdog_module |= (wdog_module / 8192);
103 wdp->mr = wdog_module;
105 wdp->cr = WTM_WCR_EN;
106 puts("WATCHDOG:enabled\n");
110 #endif /* CONFIG_WATCHDOG */
112 #if defined(CONFIG_MCFFEC)
113 /* Default initializations for MCFFEC controllers. To override,
114 * create a board-specific function called:
115 * int board_eth_init(bd_t *bis)
118 int cpu_eth_init(bd_t *bis)
120 return mcffec_initialize(bis);