ep93xx: Move crunch code to mach-ep93xx directory

The crunch code in arch/arm/kernel is specific to the EP93xx. Move it
to the mach-ep93xx directory. This removes the need for the
EP93XX_SYSCON defines to be exported to arch/arm/kernel.

Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Hartley Sweeten <hsweeten@visionengravers.com>

1 files changed, 0 insertions, 88 deletions

diff --git a/arch/arm/kernel/crunch.c b/arch/arm/kernel/crunch.c
deleted file mode 100644
index 25ef223ba7f3..000000000000
--- a/arch/arm/kernel/crunch.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * arch/arm/kernel/crunch.c
- * Cirrus MaverickCrunch context switching and handling
- *
- * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
- *
- * 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.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <mach/ep93xx-regs.h>
-#include <asm/thread_notify.h>
-
-struct crunch_state *crunch_owner;
-
-void crunch_task_release(struct thread_info *thread)
-{
-	local_irq_disable();
-	if (crunch_owner == &thread->crunchstate)
-		crunch_owner = NULL;
-	local_irq_enable();
-}
-
-static int crunch_enabled(u32 devcfg)
-{
-	return !!(devcfg & EP93XX_SYSCON_DEVCFG_CPENA);
-}
-
-static int crunch_do(struct notifier_block *self, unsigned long cmd, void *t)
-{
-	struct thread_info *thread = (struct thread_info *)t;
-	struct crunch_state *crunch_state;
-	u32 devcfg;
-
-	crunch_state = &thread->crunchstate;
-
-	switch (cmd) {
-	case THREAD_NOTIFY_FLUSH:
-		memset(crunch_state, 0, sizeof(*crunch_state));
-
-		/*
-		 * FALLTHROUGH: Ensure we don't try to overwrite our newly
-		 * initialised state information on the first fault.
-		 */
-
-	case THREAD_NOTIFY_EXIT:
-		crunch_task_release(thread);
-		break;
-
-	case THREAD_NOTIFY_SWITCH:
-		devcfg = __raw_readl(EP93XX_SYSCON_DEVCFG);
-		if (crunch_enabled(devcfg) || crunch_owner == crunch_state) {
-			/*
-			 * We don't use ep93xx_syscon_swlocked_write() here
-			 * because we are on the context switch path and
-			 * preemption is already disabled.
-			 */
-			devcfg ^= EP93XX_SYSCON_DEVCFG_CPENA;
-			__raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
-			__raw_writel(devcfg, EP93XX_SYSCON_DEVCFG);
-		}
-		break;
-	}
-
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block crunch_notifier_block = {
-	.notifier_call	= crunch_do,
-};
-
-static int __init crunch_init(void)
-{
-	thread_register_notifier(&crunch_notifier_block);
-	elf_hwcap |= HWCAP_CRUNCH;
-
-	return 0;
-}
-
-late_initcall(crunch_init);