3 * (C) Copyright 2000-2003
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Copyright (C) 2004-2007, 2012 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>
36 DECLARE_GLOBAL_DATA_PTR;
38 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
40 ccm_t *ccm = (ccm_t *) MMAP_CCM;
42 out_8(&ccm->rcr, CCM_RCR_SOFTRST);
43 /* we don't return! */
49 ccm_t *ccm = (ccm_t *) MMAP_CCM;
55 msk = (in_be16(&ccm->cir) >> 6);
56 ver = (in_be16(&ccm->cir) & 0x003f);
64 char buf1[32], buf2[32];
66 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
68 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
69 strmhz(buf1, gd->cpu_clk),
70 strmhz(buf2, gd->bus_clk));
76 #if defined(CONFIG_WATCHDOG)
77 /* Called by macro WATCHDOG_RESET */
78 void watchdog_reset(void)
80 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
83 out_be16(&wdp->sr, 0x5555);
85 out_be16(&wdp->sr, 0xaaaa);
88 int watchdog_disable(void)
90 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
92 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
93 /* halted watchdog timer */
94 setbits_be16(&wdp->cr, WTM_WCR_HALTED);
96 puts("WATCHDOG:disabled\n");
100 int watchdog_init(void)
102 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
105 /* set timeout and enable watchdog */
106 wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT);
107 wdog_module |= (wdog_module / 8192);
108 out_be16(&wdp->mr, wdog_module);
110 out_be16(&wdp->cr, WTM_WCR_EN);
111 puts("WATCHDOG:enabled\n");
115 #endif /* CONFIG_WATCHDOG */
117 #if defined(CONFIG_MCFFEC)
118 /* Default initializations for MCFFEC controllers. To override,
119 * create a board-specific function called:
120 * int board_eth_init(bd_t *bis)
123 int cpu_eth_init(bd_t *bis)
125 return mcffec_initialize(bis);