1 files changed, 123 insertions, 0 deletions
diff --git a/cpu/mcf52x2/cpu.c b/cpu/mcf52x2/cpu.c
new file mode 100644
index 0000000..b012222
--- /dev/null
+++ b/cpu/mcf52x2/cpu.c
@@ -0,0 +1,123 @@
+/*
+ * (C) Copyright 2003
+ * Josef Baumgartner <josef.baumgartner@telex.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+
+#ifdef	CONFIG_M5272
+#include <asm/immap_5272.h>
+#include <asm/m5272.h>
+#endif
+
+#ifdef	CONFIG_M5282
+
+#endif
+
+
+#ifdef	CONFIG_M5272
+int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) {
+	volatile wdog_t * wdp = (wdog_t *)(CFG_MBAR + MCFSIM_WRRR);
+
+	wdp->wdog_wrrr = 0;
+	udelay (1000);
+
+	/* enable watchdog, set timeout to 0 and wait */
+	wdp->wdog_wrrr = 1;
+	while (1);
+
+	/* we don't return! */
+	return 0;
+};
+
+int checkcpu(void) {
+	ulong *dirp = (ulong *)(CFG_MBAR + MCFSIM_DIR);
+	uchar msk;
+	char  *suf;
+
+	puts ("CPU:   ");
+	msk = (*dirp > 28) & 0xf;
+	switch (msk) {
+		case 0x2: suf = "1K75N"; break;
+		case 0x4: suf = "3K75N"; break;
+		default:
+			suf = NULL;
+			printf ("MOTOROLA MCF5272 (Mask:%01x)\n", msk);
+			break;
+		}
+
+	if (suf)
+		printf ("MOTOROLA MCF5272 %s\n", suf);
+	return 0;
+};
+
+
+#if defined(CONFIG_WATCHDOG)
+/* Called by macro WATCHDOG_RESET */
+void watchdog_reset (void)
+{
+	volatile immap_t * regp = (volatile immap_t *)CFG_MBAR;
+	regp->wdog_reg.wdog_wcr = 0;
+}
+
+int watchdog_disable (void)
+{
+	volatile immap_t *regp = (volatile immap_t *)CFG_MBAR;
+
+	regp->wdog_reg.wdog_wcr = 0;	/* reset watchdog counter */
+	regp->wdog_reg.wdog_wirr = 0;	/* disable watchdog interrupt */
+	regp->wdog_reg.wdog_wrrr = 0;	/* disable watchdog timer */
+
+	puts ("WATCHDOG:disabled\n");
+	return (0);
+}
+
+int watchdog_init (void)
+{
+	volatile immap_t *regp = (volatile immap_t *)CFG_MBAR;
+
+	regp->wdog_reg.wdog_wirr = 0;	/* disable watchdog interrupt */
+
+	/* set timeout and enable watchdog */
+	regp->wdog_reg.wdog_wrrr = ((CONFIG_WATCHDOG_TIMEOUT * CFG_HZ) / (32768 * 1000)) - 1;
+	regp->wdog_reg.wdog_wcr = 0;	/* reset watchdog counter */
+
+	puts ("WATCHDOG:enabled\n");
+	return (0);
+}
+#endif /* #ifdef CONFIG_WATCHDOG */
+
+#endif /* #ifdef CONFIG_M5272 */
+
+
+#ifdef	CONFIG_M5282
+int checkcpu (void)
+{
+	puts ("CPU:   MOTOROLA Coldfire MCF5282\n");
+	return 0;
+}
+
+int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) {
+	return 0;
+};
+#endif