patch-2.4.20 linux-2.4.20/arch/mips/momentum/ocelot_g/reset.c
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- Lines: 48
- Date:
Thu Nov 28 15:53:10 2002
- Orig file:
linux-2.4.19/arch/mips/momentum/ocelot_g/reset.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.19/arch/mips/momentum/ocelot_g/reset.c linux-2.4.20/arch/mips/momentum/ocelot_g/reset.c
@@ -0,0 +1,47 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 1997, 2001 Ralf Baechle
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/system.h>
+#include <linux/delay.h>
+
+void momenco_ocelot_restart(char *command)
+{
+ void *nvram = ioremap_nocache(0x2c807000, 0x1000);
+
+ if (!nvram) {
+ printk(KERN_NOTICE "ioremap of reset register failed\n");
+ return;
+ }
+ writeb(0x84, nvram + 0xff7); /* Ask the NVRAM/RTC/watchdog chip to
+ assert reset in 1/16 second */
+ mdelay(10+(1000/16));
+ iounmap(nvram);
+ printk(KERN_NOTICE "Watchdog reset failed\n");
+}
+
+void momenco_ocelot_halt(void)
+{
+ printk(KERN_NOTICE "\n** You can safely turn off the power\n");
+ while (1)
+ __asm__(".set\tmips3\n\t"
+ "wait\n\t"
+ ".set\tmips0");
+}
+
+void momenco_ocelot_power_off(void)
+{
+ momenco_ocelot_halt();
+}
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