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Diffstat (limited to 'arch/mips/ddb5xxx/ddb5476/vrc5476_irq.c')
-rw-r--r--arch/mips/ddb5xxx/ddb5476/vrc5476_irq.c109
1 files changed, 0 insertions, 109 deletions
diff --git a/arch/mips/ddb5xxx/ddb5476/vrc5476_irq.c b/arch/mips/ddb5xxx/ddb5476/vrc5476_irq.c
deleted file mode 100644
index a3c5e7b18018..000000000000
--- a/arch/mips/ddb5xxx/ddb5476/vrc5476_irq.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * The irq controller for vrc5476.
- *
- * Copyright (C) 2001 MontaVista Software Inc.
- * Author: jsun@mvista.com or jsun@junsun.net
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-
-#include <asm/system.h>
-
-#include <asm/ddb5xxx/ddb5xxx.h>
-
-static int irq_base;
-
-static void vrc5476_irq_enable(uint irq)
-{
- nile4_enable_irq(irq - irq_base);
-}
-
-static void vrc5476_irq_disable(uint irq)
-{
- nile4_disable_irq(irq - irq_base);
-}
-
-static unsigned int vrc5476_irq_startup(uint irq)
-{
- nile4_enable_irq(irq - irq_base);
- return 0;
-}
-
-#define vrc5476_irq_shutdown vrc5476_irq_disable
-
-static void vrc5476_irq_ack(uint irq)
-{
- nile4_clear_irq(irq - irq_base);
- nile4_disable_irq(irq - irq_base);
-}
-
-static void vrc5476_irq_end(uint irq)
-{
- if(!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
- vrc5476_irq_enable(irq);
-}
-
-static hw_irq_controller vrc5476_irq_controller = {
- .typename = "vrc5476",
- .startup = vrc5476_irq_startup,
- .shutdown = vrc5476_irq_shutdown,
- .enable = vrc5476_irq_enable,
- .disable = vrc5476_irq_disable,
- .ack = vrc5476_irq_ack,
- .end = vrc5476_irq_end
-};
-
-void __init
-vrc5476_irq_init(u32 base)
-{
- u32 i;
-
- irq_base = base;
- for (i= base; i< base + NUM_VRC5476_IRQ; i++) {
- irq_desc[i].status = IRQ_DISABLED;
- irq_desc[i].action = NULL;
- irq_desc[i].depth = 1;
- irq_desc[i].handler = &vrc5476_irq_controller;
- }
-}
-
-
-void
-vrc5476_irq_dispatch(struct pt_regs *regs)
-{
- u32 mask;
- int nile4_irq;
-
- mask = nile4_get_irq_stat(0);
-
- /* quick check for possible time interrupt */
- if (mask & (1 << VRC5476_IRQ_GPT)) {
- do_IRQ(VRC5476_IRQ_BASE + VRC5476_IRQ_GPT, regs);
- return;
- }
-
- /* check for i8259 interrupts */
- if (mask & (1 << VRC5476_I8259_CASCADE)) {
- int i8259_irq = nile4_i8259_iack();
- do_IRQ(I8259_IRQ_BASE + i8259_irq, regs);
- return;
- }
-
- /* regular nile4 interrupts (we should not really have any */
- for (nile4_irq = 0; mask; nile4_irq++, mask >>= 1) {
- if (mask & 1) {
- do_IRQ(VRC5476_IRQ_BASE + nile4_irq, regs);
- return;
- }
- }
- spurious_interrupt(regs);
-}