power.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:1k
- /*
- * arch/mips/philips/nino/power.c
- *
- * Copyright (C) 2000 Jim Pick <jim@jimpick.com>
- * Copyright (C) 2001 Steven J. Hill (sjhill@realitydiluted.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Power management routines for the Philips Nino
- */
- #include <asm/io.h>
- #include <asm/tx3912.h>
- void nino_wait(void)
- {
- /* We stop the CPU to conserve power */
- outl(inl(TX3912_POWER_CTRL) | TX3912_POWER_CTRL_STOPCPU,
- TX3912_POWER_CTRL);
- /*
- * We wait until an interrupt happens...
- */
- /* We resume here */
- outl(inl(TX3912_POWER_CTRL) & ~TX3912_POWER_CTRL_STOPCPU,
- TX3912_POWER_CTRL);
- /* Give ourselves a little delay */
- __asm__ __volatile__(
- "nopnt"
- "nopnt"
- "nopnt"
- "nopnt"
- "nopnt"
- "nopnt"
- "nopnt");
- }