Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-at91/include/mach/system.h |
| 3 | * |
| 4 | * Copyright (C) 2003 SAN People |
| 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 as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 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. |
| 15 | * |
| 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 |
| 19 | */ |
| 20 | |
| 21 | #ifndef __ASM_ARCH_SYSTEM_H |
| 22 | #define __ASM_ARCH_SYSTEM_H |
| 23 | |
| 24 | #include <mach/hardware.h> |
| 25 | #include <mach/at91_st.h> |
| 26 | #include <mach/at91_dbgu.h> |
| 27 | |
| 28 | static inline void arch_idle(void) |
| 29 | { |
| 30 | /* |
| 31 | * Disable the processor clock. The processor will be automatically |
| 32 | * re-enabled by an interrupt or by a reset. |
| 33 | */ |
| 34 | // at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK); |
| 35 | |
| 36 | /* |
| 37 | * Set the processor (CP15) into 'Wait for Interrupt' mode. |
| 38 | * Unlike disabling the processor clock via the PMC (above) |
| 39 | * this allows the processor to be woken via JTAG. |
| 40 | */ |
| 41 | cpu_do_idle(); |
| 42 | } |
| 43 | |
| 44 | void (*at91_arch_reset)(void); |
| 45 | |
| 46 | static inline void arch_reset(char mode) |
| 47 | { |
| 48 | /* call the CPU-specific reset function */ |
| 49 | if (at91_arch_reset) |
| 50 | (at91_arch_reset)(); |
| 51 | } |
| 52 | |
| 53 | #endif |