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-rw-r--r--arch/arm/mach-ebsa110/include/mach/entry-macro.S6
-rw-r--r--arch/arm/mach-ebsa110/include/mach/system.h37
2 files changed, 0 insertions, 43 deletions
diff --git a/arch/arm/mach-ebsa110/include/mach/entry-macro.S b/arch/arm/mach-ebsa110/include/mach/entry-macro.S
index cc3e5992f6b3..14b110de78a9 100644
--- a/arch/arm/mach-ebsa110/include/mach/entry-macro.S
+++ b/arch/arm/mach-ebsa110/include/mach/entry-macro.S
@@ -12,16 +12,10 @@
12 12
13#define IRQ_STAT 0xff000000 /* read */ 13#define IRQ_STAT 0xff000000 /* read */
14 14
15 .macro disable_fiq
16 .endm
17
18 .macro get_irqnr_preamble, base, tmp 15 .macro get_irqnr_preamble, base, tmp
19 mov \base, #IRQ_STAT 16 mov \base, #IRQ_STAT
20 .endm 17 .endm
21 18
22 .macro arch_ret_to_user, tmp1, tmp2
23 .endm
24
25 .macro get_irqnr_and_base, irqnr, stat, base, tmp 19 .macro get_irqnr_and_base, irqnr, stat, base, tmp
26 ldrb \stat, [\base] @ get interrupts 20 ldrb \stat, [\base] @ get interrupts
27 mov \irqnr, #0 21 mov \irqnr, #0
diff --git a/arch/arm/mach-ebsa110/include/mach/system.h b/arch/arm/mach-ebsa110/include/mach/system.h
deleted file mode 100644
index 2e4af65edb6f..000000000000
--- a/arch/arm/mach-ebsa110/include/mach/system.h
+++ /dev/null
@@ -1,37 +0,0 @@
1/*
2 * arch/arm/mach-ebsa110/include/mach/system.h
3 *
4 * Copyright (C) 1996-2000 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#ifndef __ASM_ARCH_SYSTEM_H
11#define __ASM_ARCH_SYSTEM_H
12
13/*
14 * EBSA110 idling methodology:
15 *
16 * We can not execute the "wait for interrupt" instruction since that
17 * will stop our MCLK signal (which provides the clock for the glue
18 * logic, and therefore the timer interrupt).
19 *
20 * Instead, we spin, polling the IRQ_STAT register for the occurrence
21 * of any interrupt with core clock down to the memory clock.
22 */
23static inline void arch_idle(void)
24{
25 const char *irq_stat = (char *)0xff000000;
26
27 /* disable clock switching */
28 asm volatile ("mcr p15, 0, ip, c15, c2, 2" : : : "cc");
29
30 /* wait for an interrupt to occur */
31 while (!*irq_stat);
32
33 /* enable clock switching */
34 asm volatile ("mcr p15, 0, ip, c15, c1, 2" : : : "cc");
35}
36
37#endif