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yaml
---
r: 91191
b: refs/heads/master
c: 01eb569
h: refs/heads/master
i:
  91189: 04039f3
  91187: b5fbbf3
  91183: e6f7a40
v: v3
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Lennert Buytenhek authored and Nicolas Pitre committed Mar 27, 2008
1 parent 9587355 commit f9698bf
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Showing 5 changed files with 85 additions and 35 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 69b02f6a9639af89c099d06d5f2c4c66a1b03ebf
refs/heads/master: 01eb569823792ab83b2810fcb31fa38560b08951
35 changes: 2 additions & 33 deletions trunk/arch/arm/mach-orion/irq.c
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Expand Up @@ -15,6 +15,7 @@
#include <linux/irq.h>
#include <asm/gpio.h>
#include <asm/arch/orion.h>
#include <asm/plat-orion/irq.h>
#include "common.h"

/*****************************************************************************
Expand Down Expand Up @@ -197,41 +198,9 @@ static void __init orion_init_gpio_irq(void)
/*****************************************************************************
* Orion Main IRQ
****************************************************************************/
static void orion_main_irq_mask(u32 irq)
{
orion_clrbits(MAIN_IRQ_MASK, 1 << irq);
}

static void orion_main_irq_unmask(u32 irq)
{
orion_setbits(MAIN_IRQ_MASK, 1 << irq);
}

static struct irq_chip orion_main_irq_chip = {
.name = "Orion-IRQ-Main",
.ack = orion_main_irq_mask,
.mask = orion_main_irq_mask,
.unmask = orion_main_irq_unmask,
};

static void __init orion_init_main_irq(void)
{
int i;

/*
* Mask and clear Main IRQ interrupts
*/
orion_write(MAIN_IRQ_MASK, 0x0);
orion_write(MAIN_IRQ_CAUSE, 0x0);

/*
* Register level handler for Main IRQs
*/
for (i = 0; i < IRQ_ORION_GPIO_START; i++) {
set_irq_chip(i, &orion_main_irq_chip);
set_irq_handler(i, handle_level_irq);
set_irq_flags(i, IRQF_VALID);
}
orion_irq_init(0, (void __iomem *)MAIN_IRQ_MASK);
}

void __init orion_init_irq(void)
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2 changes: 1 addition & 1 deletion trunk/arch/arm/plat-orion/Makefile
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Expand Up @@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#

obj-y :=
obj-y := irq.o
obj-m :=
obj-n :=
obj- :=
64 changes: 64 additions & 0 deletions trunk/arch/arm/plat-orion/irq.c
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@@ -0,0 +1,64 @@
/*
* arch/arm/plat-orion/irq.c
*
* Marvell Orion SoC IRQ handling.
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <asm/plat-orion/irq.h>

static void orion_irq_mask(u32 irq)
{
void __iomem *maskaddr = get_irq_chip_data(irq);
u32 mask;

mask = readl(maskaddr);
mask &= ~(1 << (irq & 31));
writel(mask, maskaddr);
}

static void orion_irq_unmask(u32 irq)
{
void __iomem *maskaddr = get_irq_chip_data(irq);
u32 mask;

mask = readl(maskaddr);
mask |= 1 << (irq & 31);
writel(mask, maskaddr);
}

static struct irq_chip orion_irq_chip = {
.name = "orion_irq",
.ack = orion_irq_mask,
.mask = orion_irq_mask,
.unmask = orion_irq_unmask,
};

void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
{
unsigned int i;

/*
* Mask all interrupts initially.
*/
writel(0, maskaddr);

/*
* Register IRQ sources.
*/
for (i = 0; i < 32; i++) {
unsigned int irq = irq_start + i;

set_irq_chip(irq, &orion_irq_chip);
set_irq_chip_data(irq, maskaddr);
set_irq_handler(irq, handle_level_irq);
set_irq_flags(irq, IRQF_VALID);
}
}
17 changes: 17 additions & 0 deletions trunk/include/asm-arm/plat-orion/irq.h
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/*
* include/asm-arm/plat-orion/irq.h
*
* Marvell Orion SoC IRQ handling.
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/

#ifndef __ASM_PLAT_ORION_IRQ_H
#define __ASM_PLAT_ORION_IRQ_H

void orion_irq_init(unsigned int irq_start, void __iomem *maskaddr);


#endif

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