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>
38 #include <asm/m5249.h>
43 int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) {
44 volatile wdog_t * wdp = (wdog_t *)(CFG_MBAR + MCFSIM_WRRR);
49 /* enable watchdog, set timeout to 0 and wait */
53 /* we don't return! */
58 ulong *dirp = (ulong *)(CFG_MBAR + MCFSIM_DIR);
63 msk = (*dirp > 28) & 0xf;
65 case 0x2: suf = "1K75N"; break;
66 case 0x4: suf = "3K75N"; break;
69 printf ("MOTOROLA MCF5272 (Mask:%01x)\n", msk);
74 printf ("MOTOROLA MCF5272 %s\n", suf);
79 #if defined(CONFIG_WATCHDOG)
80 /* Called by macro WATCHDOG_RESET */
81 void watchdog_reset (void)
83 volatile immap_t * regp = (volatile immap_t *)CFG_MBAR;
84 regp->wdog_reg.wdog_wcr = 0;
87 int watchdog_disable (void)
89 volatile immap_t *regp = (volatile immap_t *)CFG_MBAR;
91 regp->wdog_reg.wdog_wcr = 0; /* reset watchdog counter */
92 regp->wdog_reg.wdog_wirr = 0; /* disable watchdog interrupt */
93 regp->wdog_reg.wdog_wrrr = 0; /* disable watchdog timer */
95 puts ("WATCHDOG:disabled\n");
99 int watchdog_init (void)
101 volatile immap_t *regp = (volatile immap_t *)CFG_MBAR;
103 regp->wdog_reg.wdog_wirr = 0; /* disable watchdog interrupt */
105 /* set timeout and enable watchdog */
106 regp->wdog_reg.wdog_wrrr = ((CONFIG_WATCHDOG_TIMEOUT * CFG_HZ) / (32768 * 1000)) - 1;
107 regp->wdog_reg.wdog_wcr = 0; /* reset watchdog counter */
109 puts ("WATCHDOG:enabled\n");
112 #endif /* #ifdef CONFIG_WATCHDOG */
114 #endif /* #ifdef CONFIG_M5272 */
120 puts ("CPU: MOTOROLA Coldfire MCF5282\n");
124 int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) {
129 #ifdef CONFIG_M5249 /* test-only: todo... */
134 printf ("CPU: MOTOROLA Coldfire MCF5249 at %s MHz\n", strmhz(buf, CFG_CLK));
138 int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) {
139 /* enable watchdog, set timeout to 0 and wait */
140 mbar_writeByte(MCFSIM_SYPCR, 0xc0);
143 /* we don't return! */