diff options
author | Olof Johansson <olof@lixom.net> | 2019-12-05 13:16:58 -0800 |
---|---|---|
committer | Olof Johansson <olof@lixom.net> | 2019-12-05 13:18:54 -0800 |
commit | 942e6f8a8314e5550e254519dfba4ccd5170421d (patch) | |
tree | 75ec655b440fbc1c454247af38b5596dd8c78de9 /arch/mips/sgi-ip30/ip30-power.c | |
parent | 336bab731be76a90291697e51d2aed0ad67d7cb5 (diff) | |
parent | b08baef02b26cf7c2123e4a24a2fa1fb7a593ffb (diff) |
Merge mainline/master into arm/fixes
This brings in the mainline tree right after armsoc contents was merged
this release cycle, so that we can re-run savedefconfig, etc.
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/mips/sgi-ip30/ip30-power.c')
-rw-r--r-- | arch/mips/sgi-ip30/ip30-power.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/mips/sgi-ip30/ip30-power.c b/arch/mips/sgi-ip30/ip30-power.c new file mode 100644 index 000000000000..120b3f3d5108 --- /dev/null +++ b/arch/mips/sgi-ip30/ip30-power.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ip30-power.c: Software powerdown and reset handling for IP30 architecture. + * + * Copyright (C) 2004-2007 Stanislaw Skowronek <skylark@unaligned.org> + * 2014 Joshua Kinard <kumba@gentoo.org> + * 2009 Johannes Dickgreber <tanzy@gmx.de> + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/notifier.h> +#include <linux/delay.h> +#include <linux/rtc/ds1685.h> +#include <linux/interrupt.h> +#include <linux/pm.h> + +#include <asm/reboot.h> +#include <asm/sgi/heart.h> + +static void __noreturn ip30_machine_restart(char *cmd) +{ + /* + * Execute HEART cold reset + * Yes, it's cold-HEARTed! + */ + heart_write((heart_read(&heart_regs->mode) | HM_COLD_RST), + &heart_regs->mode); + unreachable(); +} + +static int __init ip30_reboot_setup(void) +{ + _machine_restart = ip30_machine_restart; + + return 0; +} + +subsys_initcall(ip30_reboot_setup); |