3 * Josef Baumgartner <josef.baumgartner@telex.de>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/immap_5272.h>
30 #include <asm/m5272.h>
39 int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) {
40 volatile wdog_t * wdp = (wdog_t *)(CFG_MBAR + MCFSIM_WRRR);
45 /* enable watchdog, set timeout to 0 and wait */
49 /* we don't return! */
54 ulong *dirp = (ulong *)(CFG_MBAR + MCFSIM_DIR);
59 msk = (*dirp > 28) & 0xf;
61 case 0x2: suf = "1K75N"; break;
62 case 0x4: suf = "3K75N"; break;
65 printf ("MOTOROLA MCF5272 (Mask:%01x)\n", msk);
70 printf ("MOTOROLA MCF5272 %s\n", suf);
75 #if defined(CONFIG_WATCHDOG)
76 /* Called by macro WATCHDOG_RESET */
77 void watchdog_reset (void)
79 volatile immap_t * regp = (volatile immap_t *)CFG_MBAR;
80 regp->wdog_reg.wdog_wcr = 0;
83 int watchdog_disable (void)
85 volatile immap_t *regp = (volatile immap_t *)CFG_MBAR;
87 regp->wdog_reg.wdog_wcr = 0; /* reset watchdog counter */
88 regp->wdog_reg.wdog_wirr = 0; /* disable watchdog interrupt */
89 regp->wdog_reg.wdog_wrrr = 0; /* disable watchdog timer */
91 puts ("WATCHDOG:disabled\n");
95 int watchdog_init (void)
97 volatile immap_t *regp = (volatile immap_t *)CFG_MBAR;
99 regp->wdog_reg.wdog_wirr = 0; /* disable watchdog interrupt */
101 /* set timeout and enable watchdog */
102 regp->wdog_reg.wdog_wrrr = ((CONFIG_WATCHDOG_TIMEOUT * CFG_HZ) / (32768 * 1000)) - 1;
103 regp->wdog_reg.wdog_wcr = 0; /* reset watchdog counter */
105 puts ("WATCHDOG:enabled\n");
108 #endif /* #ifdef CONFIG_WATCHDOG */
110 #endif /* #ifdef CONFIG_M5272 */
116 puts ("CPU: MOTOROLA Coldfire MCF5282\n");
120 int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) {