aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/gt64120/momenco_ocelot/reset.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/gt64120/momenco_ocelot/reset.c
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/mips/gt64120/momenco_ocelot/reset.c')
-rw-r--r--arch/mips/gt64120/momenco_ocelot/reset.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/mips/gt64120/momenco_ocelot/reset.c b/arch/mips/gt64120/momenco_ocelot/reset.c
new file mode 100644
index 00000000000..3fd499adf4c
--- /dev/null
+++ b/arch/mips/gt64120/momenco_ocelot/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();
+}