diff options
Diffstat (limited to 'include/asm-arm/arch-ebsa110/system.h')
| -rw-r--r-- | include/asm-arm/arch-ebsa110/system.h | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/include/asm-arm/arch-ebsa110/system.h b/include/asm-arm/arch-ebsa110/system.h deleted file mode 100644 index d7c8fece0bc..00000000000 --- a/include/asm-arm/arch-ebsa110/system.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * linux/include/asm-arm/arch-ebsa110/system.h - * - * Copyright (C) 1996-2000 Russell King. - * - * 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. - */ -#ifndef __ASM_ARCH_SYSTEM_H -#define __ASM_ARCH_SYSTEM_H - -/* - * EBSA110 idling methodology: - * - * We can not execute the "wait for interrupt" instruction since that - * will stop our MCLK signal (which provides the clock for the glue - * logic, and therefore the timer interrupt). - * - * Instead, we spin, polling the IRQ_STAT register for the occurrence - * of any interrupt with core clock down to the memory clock. - */ -static inline void arch_idle(void) -{ - const char *irq_stat = (char *)0xff000000; - - /* disable clock switching */ - asm volatile ("mcr p15, 0, ip, c15, c2, 2" : : : "cc"); - - /* wait for an interrupt to occur */ - while (!*irq_stat); - - /* enable clock switching */ - asm volatile ("mcr p15, 0, ip, c15, c1, 2" : : : "cc"); -} - -#define arch_reset(mode) cpu_reset(0x80000000) - -#endif |