3 * (C) Copyright 2000-2003
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Copyright (C) 2004-2008 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, int flag, int argc, char * const argv[])
39 volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM);
42 rcm->rcr |= RCM_RCR_SOFTRST;
44 /* we don't return! */
50 volatile ccm_t *ccm = (ccm_t *) MMAP_CCM;
56 msk = (ccm->cir >> 6);
57 ver = (ccm->cir & 0x003f);
59 #ifdef CONFIG_MCF5301x
102 char buf1[32], buf2[32];
104 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
106 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
107 strmhz(buf1, gd->cpu_clk),
108 strmhz(buf2, gd->bus_clk));
114 #if defined(CONFIG_WATCHDOG)
115 /* Called by macro WATCHDOG_RESET */
116 void watchdog_reset(void)
118 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
120 wdp->sr = 0x5555; /* Count register */
121 wdp->sr = 0xAAAA; /* Count register */
124 int watchdog_disable(void)
126 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
128 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
129 wdp->cr |= WTM_WCR_HALTED; /* halted watchdog timer */
131 puts("WATCHDOG:disabled\n");
135 int watchdog_init(void)
137 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
140 /* set timeout and enable watchdog */
141 wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT);
143 wdp->mr = (wdog_module / 8192);
145 wdp->mr = (wdog_module / 4096);
148 wdp->cr = WTM_WCR_EN;
149 puts("WATCHDOG:enabled\n");
153 #endif /* CONFIG_WATCHDOG */
155 #if defined(CONFIG_MCFFEC)
156 /* Default initializations for MCFFEC controllers. To override,
157 * create a board-specific function called:
158 * int board_eth_init(bd_t *bis)
161 int cpu_eth_init(bd_t *bis)
163 return mcffec_initialize(bis);