diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/momentum/ocelot_3/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/momentum/ocelot_3/reset.c')
-rw-r--r-- | arch/mips/momentum/ocelot_3/reset.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/mips/momentum/ocelot_3/reset.c b/arch/mips/momentum/ocelot_3/reset.c new file mode 100644 index 00000000000..72b4423c086 --- /dev/null +++ b/arch/mips/momentum/ocelot_3/reset.c @@ -0,0 +1,59 @@ +/* + * 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, 01, 05 Ralf Baechle + * Copyright 2001 MontaVista Software Inc. + * Author: jsun@mvista.com or jsun@junsun.net + * + * Copyright (C) 2002 Momentum Computer Inc. + * Author: Matthew Dharm <mdharm@momenco.com> + * + * Louis Hamilton, Red Hat, Inc. + * hamilton@redhat.com [MIPS64 modifications] + * + * Copyright 2004 PMC-Sierra + * Author: Manish Lachwani (lachwani@pmc-sierra.com) + * + * Copyright (C) 2004 MontaVista Software Inc. + * Author: Manish Lachwani, mlachwani@mvista.com + */ +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/delay.h> +#include <asm/io.h> +#include <asm/pgtable.h> +#include <asm/processor.h> +#include <asm/reboot.h> +#include <asm/system.h> + +void momenco_ocelot_restart(char *command) +{ + /* base address of timekeeper portion of part */ + void *nvram = (void *) 0xfc807000L; + + /* Ask the NVRAM/RTC/watchdog chip to assert reset in 1/16 second */ + writeb(0x84, nvram + 0xff7); + + /* wait for the watchdog to go off */ + mdelay(100+(1000/16)); + + /* if the watchdog fails for some reason, let people know */ + 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(); +} |