v2.4.8 -> v2.4.8.1
[opensuse:kernel.git] / include / asm-arm / arch-rpc / system.h
1 /*
2  *  linux/include/asm-arm/arch-rpc/system.h
3  *
4  *  Copyright (C) 1996-1999 Russell King.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10 #include <asm/arch/hardware.h>
11 #include <asm/hardware/iomd.h>
12 #include <asm/io.h>
13
14 static void arch_idle(void)
15 {
16         unsigned long start_idle;
17
18         start_idle = jiffies;
19
20         do {
21                 if (current->need_resched || hlt_counter)
22                         goto slow_out;
23                 cpu_do_idle(IDLE_WAIT_FAST);
24         } while (time_before(jiffies, start_idle + HZ/50));
25
26         cpu_do_idle(IDLE_CLOCK_SLOW);
27
28         while (!current->need_resched && !hlt_counter) {
29                 cpu_do_idle(IDLE_WAIT_SLOW);
30         }
31
32         cpu_do_idle(IDLE_CLOCK_FAST);
33 slow_out:
34 }
35
36 static inline void arch_reset(char mode)
37 {
38         iomd_writeb(0, IOMD_ROMCR0);
39
40         /*
41          * Jump into the ROM
42          */
43         cpu_reset(0);
44 }