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Diffstat (limited to 'arch/mips/kernel/irq-mv6434x.c')
-rw-r--r--arch/mips/kernel/irq-mv6434x.c111
1 files changed, 0 insertions, 111 deletions
diff --git a/arch/mips/kernel/irq-mv6434x.c b/arch/mips/kernel/irq-mv6434x.c
deleted file mode 100644
index 3dd561832e4..00000000000
--- a/arch/mips/kernel/irq-mv6434x.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright 2002 Momentum Computer
- * Author: mdharm@momenco.com
- * Copyright (C) 2004, 06 Ralf Baechle <ralf@linux-mips.org>
- *
- * 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/module.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/kernel_stat.h>
-#include <linux/mv643xx.h>
-#include <linux/sched.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/marvell.h>
-
-static unsigned int irq_base;
-
-static inline int ls1bit32(unsigned int x)
-{
- int b = 31, s;
-
- s = 16; if (x << 16 == 0) s = 0; b -= s; x <<= s;
- s = 8; if (x << 8 == 0) s = 0; b -= s; x <<= s;
- s = 4; if (x << 4 == 0) s = 0; b -= s; x <<= s;
- s = 2; if (x << 2 == 0) s = 0; b -= s; x <<= s;
- s = 1; if (x << 1 == 0) s = 0; b -= s;
-
- return b;
-}
-
-/* mask off an interrupt -- 1 is enable, 0 is disable */
-static inline void mask_mv64340_irq(unsigned int irq)
-{
- uint32_t value;
-
- if (irq < (irq_base + 32)) {
- value = MV_READ(MV64340_INTERRUPT0_MASK_0_LOW);
- value &= ~(1 << (irq - irq_base));
- MV_WRITE(MV64340_INTERRUPT0_MASK_0_LOW, value);
- } else {
- value = MV_READ(MV64340_INTERRUPT0_MASK_0_HIGH);
- value &= ~(1 << (irq - irq_base - 32));
- MV_WRITE(MV64340_INTERRUPT0_MASK_0_HIGH, value);
- }
-}
-
-/* unmask an interrupt -- 1 is enable, 0 is disable */
-static inline void unmask_mv64340_irq(unsigned int irq)
-{
- uint32_t value;
-
- if (irq < (irq_base + 32)) {
- value = MV_READ(MV64340_INTERRUPT0_MASK_0_LOW);
- value |= 1 << (irq - irq_base);
- MV_WRITE(MV64340_INTERRUPT0_MASK_0_LOW, value);
- } else {
- value = MV_READ(MV64340_INTERRUPT0_MASK_0_HIGH);
- value |= 1 << (irq - irq_base - 32);
- MV_WRITE(MV64340_INTERRUPT0_MASK_0_HIGH, value);
- }
-}
-
-/*
- * Interrupt handler for interrupts coming from the Marvell chip.
- * It could be built in ethernet ports etc...
- */
-void ll_mv64340_irq(void)
-{
- unsigned int irq_src_low, irq_src_high;
- unsigned int irq_mask_low, irq_mask_high;
-
- /* read the interrupt status registers */
- irq_mask_low = MV_READ(MV64340_INTERRUPT0_MASK_0_LOW);
- irq_mask_high = MV_READ(MV64340_INTERRUPT0_MASK_0_HIGH);
- irq_src_low = MV_READ(MV64340_MAIN_INTERRUPT_CAUSE_LOW);
- irq_src_high = MV_READ(MV64340_MAIN_INTERRUPT_CAUSE_HIGH);
-
- /* mask for just the interrupts we want */
- irq_src_low &= irq_mask_low;
- irq_src_high &= irq_mask_high;
-
- if (irq_src_low)
- do_IRQ(ls1bit32(irq_src_low) + irq_base);
- else
- do_IRQ(ls1bit32(irq_src_high) + irq_base + 32);
-}
-
-struct irq_chip mv64340_irq_type = {
- .name = "MV-64340",
- .ack = mask_mv64340_irq,
- .mask = mask_mv64340_irq,
- .mask_ack = mask_mv64340_irq,
- .unmask = unmask_mv64340_irq,
-};
-
-void __init mv64340_irq_init(unsigned int base)
-{
- int i;
-
- for (i = base; i < base + 64; i++)
- set_irq_chip_and_handler(i, &mv64340_irq_type,
- handle_level_irq);
-
- irq_base = base;
-}