diff options
author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
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committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /arch/arm/mach-at91/include/mach/system.h | |
parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) |
Diffstat (limited to 'arch/arm/mach-at91/include/mach/system.h')
-rw-r--r-- | arch/arm/mach-at91/include/mach/system.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/system.h b/arch/arm/mach-at91/include/mach/system.h new file mode 100644 index 00000000000..36af14bc13b --- /dev/null +++ b/arch/arm/mach-at91/include/mach/system.h | |||
@@ -0,0 +1,59 @@ | |||
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 | #include <mach/at91_pmc.h> | ||
28 | |||
29 | static inline void arch_idle(void) | ||
30 | { | ||
31 | /* | ||
32 | * Disable the processor clock. The processor will be automatically | ||
33 | * re-enabled by an interrupt or by a reset. | ||
34 | */ | ||
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 | ||
41 | /* | ||
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. | ||
45 | */ | ||
46 | cpu_do_idle(); | ||
47 | #endif | ||
48 | } | ||
49 | |||
50 | void (*at91_arch_reset)(void); | ||
51 | |||
52 | static inline void arch_reset(char mode, const char *cmd) | ||
53 | { | ||
54 | /* call the CPU-specific reset function */ | ||
55 | if (at91_arch_reset) | ||
56 | (at91_arch_reset)(); | ||
57 | } | ||
58 | |||
59 | #endif | ||