Merge remote-tracking branch 'moduleh/module.h-split'
[linux-2.6/next.git] / arch / arm / mach-at91 / include / mach / system.h
blob36af14bc13bbbbc88aad80487b6d3cc85b924f0b
1 /*
2 * arch/arm/mach-at91/include/mach/system.h
4 * Copyright (C) 2003 SAN People
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #ifndef __ASM_ARCH_SYSTEM_H
22 #define __ASM_ARCH_SYSTEM_H
24 #include <mach/hardware.h>
25 #include <mach/at91_st.h>
26 #include <mach/at91_dbgu.h>
27 #include <mach/at91_pmc.h>
29 static inline void arch_idle(void)
32 * Disable the processor clock. The processor will be automatically
33 * re-enabled by an interrupt or by a reset.
35 #ifdef AT91_PS
36 at91_sys_write(AT91_PS_CR, AT91_PS_CR_CPU);
37 #else
38 at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
39 #endif
40 #ifndef CONFIG_CPU_ARM920T
42 * Set the processor (CP15) into 'Wait for Interrupt' mode.
43 * Post-RM9200 processors need this in conjunction with the above
44 * to save power when idle.
46 cpu_do_idle();
47 #endif
50 void (*at91_arch_reset)(void);
52 static inline void arch_reset(char mode, const char *cmd)
54 /* call the CPU-specific reset function */
55 if (at91_arch_reset)
56 (at91_arch_reset)();
59 #endif