1 files changed, 0 insertions, 111 deletions
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
deleted file mode 100644
index 7a826fbf9060..000000000000
--- a/arch/mips/vr41xx/common/irq.c
+++ /dev/null
@@ -1,111 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *  Interrupt handing routines for NEC VR4100 series.
- *
- *  Copyright (C) 2005-2007  Yoichi Yuasa <yuasa@linux-mips.org>
- */
-#include <linux/export.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-
-#include <asm/irq_cpu.h>
-#include <asm/vr41xx/irq.h>
-
-typedef struct irq_cascade {
-	int (*get_irq)(unsigned int);
-} irq_cascade_t;
-
-static irq_cascade_t irq_cascade[NR_IRQS] __cacheline_aligned;
-
-static struct irqaction cascade_irqaction = {
-	.handler	= no_action,
-	.name		= "cascade",
-	.flags		= IRQF_NO_THREAD,
-};
-
-int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int))
-{
-	int retval = 0;
-
-	if (irq >= NR_IRQS)
-		return -EINVAL;
-
-	if (irq_cascade[irq].get_irq != NULL)
-		free_irq(irq, NULL);
-
-	irq_cascade[irq].get_irq = get_irq;
-
-	if (get_irq != NULL) {
-		retval = setup_irq(irq, &cascade_irqaction);
-		if (retval < 0)
-			irq_cascade[irq].get_irq = NULL;
-	}
-
-	return retval;
-}
-
-EXPORT_SYMBOL_GPL(cascade_irq);
-
-static void irq_dispatch(unsigned int irq)
-{
-	irq_cascade_t *cascade;
-
-	if (irq >= NR_IRQS) {
-		atomic_inc(&irq_err_count);
-		return;
-	}
-
-	cascade = irq_cascade + irq;
-	if (cascade->get_irq != NULL) {
-		struct irq_desc *desc = irq_to_desc(irq);
-		struct irq_data *idata = irq_desc_get_irq_data(desc);
-		struct irq_chip *chip = irq_desc_get_chip(desc);
-		int ret;
-
-		if (chip->irq_mask_ack)
-			chip->irq_mask_ack(idata);
-		else {
-			chip->irq_mask(idata);
-			chip->irq_ack(idata);
-		}
-		ret = cascade->get_irq(irq);
-		irq = ret;
-		if (ret < 0)
-			atomic_inc(&irq_err_count);
-		else
-			irq_dispatch(irq);
-		if (!irqd_irq_disabled(idata) && chip->irq_unmask)
-			chip->irq_unmask(idata);
-	} else
-		do_IRQ(irq);
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
-	unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
-
-	if (pending & CAUSEF_IP7)
-		do_IRQ(TIMER_IRQ);
-	else if (pending & 0x7800) {
-		if (pending & CAUSEF_IP3)
-			irq_dispatch(INT1_IRQ);
-		else if (pending & CAUSEF_IP4)
-			irq_dispatch(INT2_IRQ);
-		else if (pending & CAUSEF_IP5)
-			irq_dispatch(INT3_IRQ);
-		else if (pending & CAUSEF_IP6)
-			irq_dispatch(INT4_IRQ);
-	} else if (pending & CAUSEF_IP2)
-		irq_dispatch(INT0_IRQ);
-	else if (pending & CAUSEF_IP0)
-		do_IRQ(MIPS_SOFTINT0_IRQ);
-	else if (pending & CAUSEF_IP1)
-		do_IRQ(MIPS_SOFTINT1_IRQ);
-	else
-		spurious_interrupt();
-}
-
-void __init arch_init_irq(void)
-{
-	mips_cpu_irq_init();
-}