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Diffstat (limited to 'arch/mips/ite-boards/generic/reset.c')
-rw-r--r-- | arch/mips/ite-boards/generic/reset.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/mips/ite-boards/generic/reset.c b/arch/mips/ite-boards/generic/reset.c new file mode 100644 index 0000000..03bd5ba --- /dev/null +++ b/arch/mips/ite-boards/generic/reset.c @@ -0,0 +1,60 @@ +/* + * + * BRIEF MODULE DESCRIPTION + * ITE 8172 reset routines. + * + * Copyright 2001 MontaVista Software Inc. + * Author: MontaVista Software, Inc. + * ppopov@mvista.com or source@mvista.com + * + * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * 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., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/sched.h> +#include <linux/mm.h> +#include <asm/cacheflush.h> +#include <asm/io.h> +#include <asm/processor.h> +#include <asm/reboot.h> +#include <asm/system.h> + +void it8172_restart() +{ + set_c0_status(ST0_BEV | ST0_ERL); + change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED); + flush_cache_all(); + write_c0_wired(0); + __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000)); +} + +void it8172_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 it8172_power_off(void) +{ + it8172_halt(); +} |