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Diffstat (limited to 'arch/arm/mach-iop32x/irq.c')
-rw-r--r--arch/arm/mach-iop32x/irq.c95
1 files changed, 0 insertions, 95 deletions
diff --git a/arch/arm/mach-iop32x/irq.c b/arch/arm/mach-iop32x/irq.c
deleted file mode 100644
index 6dca7e97d81f..000000000000
--- a/arch/arm/mach-iop32x/irq.c
+++ /dev/null
@@ -1,95 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * arch/arm/mach-iop32x/irq.c
- *
- * Generic IOP32X IRQ handling functionality
- *
- * Author: Rory Bolt <rorybolt@pacbell.net>
- * Copyright (C) 2002 Rory Bolt
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <asm/mach/irq.h>
-#include <asm/irq.h>
-#include <asm/mach-types.h>
-
-#include "hardware.h"
-
-static u32 iop32x_mask;
-
-static void intctl_write(u32 val)
-{
- asm volatile("mcr p6, 0, %0, c0, c0, 0" : : "r" (val));
-}
-
-static void intstr_write(u32 val)
-{
- asm volatile("mcr p6, 0, %0, c4, c0, 0" : : "r" (val));
-}
-
-static u32 iintsrc_read(void)
-{
- int irq;
-
- asm volatile("mrc p6, 0, %0, c8, c0, 0" : "=r" (irq));
-
- return irq;
-}
-
-static void
-iop32x_irq_mask(struct irq_data *d)
-{
- iop32x_mask &= ~(1 << (d->irq - 1));
- intctl_write(iop32x_mask);
-}
-
-static void
-iop32x_irq_unmask(struct irq_data *d)
-{
- iop32x_mask |= 1 << (d->irq - 1);
- intctl_write(iop32x_mask);
-}
-
-struct irq_chip ext_chip = {
- .name = "IOP32x",
- .irq_ack = iop32x_irq_mask,
- .irq_mask = iop32x_irq_mask,
- .irq_unmask = iop32x_irq_unmask,
-};
-
-static void iop_handle_irq(struct pt_regs *regs)
-{
- u32 mask;
-
- iop_enable_cp6();
-
- do {
- mask = iintsrc_read();
- if (mask)
- generic_handle_irq(fls(mask));
- } while (mask);
-}
-
-void __init iop32x_init_irq(void)
-{
- int i;
-
- iop_init_cp6_handler();
- set_handle_irq(iop_handle_irq);
-
- intctl_write(0);
- intstr_write(0);
- if (machine_is_glantank() ||
- machine_is_iq80321() ||
- machine_is_iq31244() ||
- machine_is_n2100() ||
- machine_is_em7210())
- *IOP3XX_PCIIRSR = 0x0f;
-
- for (i = 1; i < NR_IRQS; i++) {
- irq_set_chip_and_handler(i, &ext_chip, handle_level_irq);
- irq_clear_status_flags(i, IRQ_NOREQUEST | IRQ_NOPROBE);
- }
-}