1 files changed, 0 insertions, 132 deletions
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
deleted file mode 100644
index 052cde5ed2e4..000000000000
--- a/arch/blackfin/kernel/irqchip.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright 2005-2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later
- */
-
-#include <linux/kernel_stat.h>
-#include <linux/module.h>
-#include <linux/random.h>
-#include <linux/seq_file.h>
-#include <linux/kallsyms.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <asm/irq_handler.h>
-#include <asm/trace.h>
-#include <asm/pda.h>
-
-static atomic_t irq_err_count;
-void ack_bad_irq(unsigned int irq)
-{
-	atomic_inc(&irq_err_count);
-	printk(KERN_ERR "IRQ: spurious interrupt %d\n", irq);
-}
-
-static struct irq_desc bad_irq_desc = {
-	.handle_irq = handle_bad_irq,
-	.lock = __RAW_SPIN_LOCK_UNLOCKED(bad_irq_desc.lock),
-};
-
-#ifdef CONFIG_CPUMASK_OFFSTACK
-/* We are not allocating a variable-sized bad_irq_desc.affinity */
-#error "Blackfin architecture does not support CONFIG_CPUMASK_OFFSTACK."
-#endif
-
-#ifdef CONFIG_PROC_FS
-int arch_show_interrupts(struct seq_file *p, int prec)
-{
-	int j;
-
-	seq_printf(p, "%*s: ", prec, "NMI");
-	for_each_online_cpu(j)
-		seq_printf(p, "%10u ", cpu_pda[j].__nmi_count);
-	seq_printf(p, "  CORE  Non Maskable Interrupt\n");
-	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
-	return 0;
-}
-#endif
-
-#ifdef CONFIG_DEBUG_STACKOVERFLOW
-static void check_stack_overflow(int irq)
-{
-	/* Debugging check for stack overflow: is there less than STACK_WARN free? */
-	long sp = __get_SP() & (THREAD_SIZE - 1);
-
-	if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) {
-		dump_stack();
-		pr_emerg("irq%i: possible stack overflow only %ld bytes free\n",
-			irq, sp - sizeof(struct thread_info));
-	}
-}
-#else
-static inline void check_stack_overflow(int irq) { }
-#endif
-
-#ifndef CONFIG_IPIPE
-static void maybe_lower_to_irq14(void)
-{
-	unsigned short pending, other_ints;
-
-	/*
-	 * If we're the only interrupt running (ignoring IRQ15 which
-	 * is for syscalls), lower our priority to IRQ14 so that
-	 * softirqs run at that level.  If there's another,
-	 * lower-level interrupt, irq_exit will defer softirqs to
-	 * that. If the interrupt pipeline is enabled, we are already
-	 * running at IRQ14 priority, so we don't need this code.
-	 */
-	CSYNC();
-	pending = bfin_read_IPEND() & ~0x8000;
-	other_ints = pending & (pending - 1);
-	if (other_ints == 0)
-		lower_to_irq14();
-}
-#else
-static inline void maybe_lower_to_irq14(void) { }
-#endif
-
-/*
- * do_IRQ handles all hardware IRQs.  Decoded IRQs should not
- * come via this function.  Instead, they should provide their
- * own 'handler'
- */
-#ifdef CONFIG_DO_IRQ_L1
-__attribute__((l1_text))
-#endif
-asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
-{
-	struct pt_regs *old_regs = set_irq_regs(regs);
-
-	irq_enter();
-
-	check_stack_overflow(irq);
-
-	/*
-	 * Some hardware gives randomly wrong interrupts.  Rather
-	 * than crashing, do something sensible.
-	 */
-	if (irq >= NR_IRQS)
-		handle_bad_irq(&bad_irq_desc);
-	else
-		generic_handle_irq(irq);
-
-	maybe_lower_to_irq14();
-
-	irq_exit();
-
-	set_irq_regs(old_regs);
-}
-
-void __init init_IRQ(void)
-{
-	init_arch_irq();
-
-#ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND
-	/* Now that evt_ivhw is set up, turn this on */
-	trace_buff_offset = 0;
-	bfin_write_TBUFCTL(BFIN_TRACE_ON);
-	printk(KERN_INFO "Hardware Trace expanded to %ik\n",
-	  1 << CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN);
-#endif
-}