3 * (C) Copyright 2000-2003
6 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
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 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 char buf1[32], buf2[32];
65 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
67 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
68 strmhz(buf1, gd->cpu_clk),
69 strmhz(buf2, gd->bus_clk));
75 #if defined(CONFIG_WATCHDOG)
76 /* Called by macro WATCHDOG_RESET */
77 void watchdog_reset(void)
79 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
81 wdp->sr = 0x5555; /* Count register */
83 wdp->sr = 0xAAAA; /* Count register */
86 int watchdog_disable(void)
88 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
90 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
91 wdp->cr |= WTM_WCR_HALTED; /* halted watchdog timer */
93 puts("WATCHDOG:disabled\n");
97 int watchdog_init(void)
99 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
102 /* set timeout and enable watchdog */
103 wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT);
104 wdog_module |= (wdog_module / 8192);
105 wdp->mr = wdog_module;
107 wdp->cr = WTM_WCR_EN;
108 puts("WATCHDOG:enabled\n");
112 #endif /* CONFIG_WATCHDOG */
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)
120 int cpu_eth_init(bd_t *bis)
122 return mcffec_initialize(bis);