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ar71xx: use set_irq_chained_handler for the PCI IRQs

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SVN-Revision: 20280
This commit is contained in:
Gabor Juhos 2010-03-18 19:18:50 +00:00
parent 1b8137eefc
commit 4d32460353
1 changed files with 12 additions and 37 deletions
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49
target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
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@ -1,7 +1,7 @@
/*
* Atheros AR71xx SoC specific interrupt handling
*
* Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* Parts of this file are based on Atheros' 2.6.15 BSP
@ -21,10 +21,8 @@
#include <asm/mach-ar71xx/ar71xx.h>
static void (* ar71xx_ip2_irq_handler)(void) = spurious_interrupt;
#ifdef CONFIG_PCI
static void ar71xx_pci_irq_dispatch(void)
static void ar71xx_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
{
u32 pending;
@ -32,16 +30,16 @@ static void ar71xx_pci_irq_dispatch(void)
ar71xx_reset_rr(AR71XX_RESET_REG_PCI_INT_ENABLE);
if (pending & PCI_INT_DEV0)
do_IRQ(AR71XX_PCI_IRQ_DEV0);
generic_handle_irq(AR71XX_PCI_IRQ_DEV0);
else if (pending & PCI_INT_DEV1)
do_IRQ(AR71XX_PCI_IRQ_DEV1);
generic_handle_irq(AR71XX_PCI_IRQ_DEV1);
else if (pending & PCI_INT_DEV2)
do_IRQ(AR71XX_PCI_IRQ_DEV2);
generic_handle_irq(AR71XX_PCI_IRQ_DEV2);
else if (pending & PCI_INT_CORE)
do_IRQ(AR71XX_PCI_IRQ_CORE);
generic_handle_irq(AR71XX_PCI_IRQ_CORE);
else
spurious_interrupt();
@ -74,17 +72,10 @@ static struct irq_chip ar71xx_pci_irq_chip = {
.mask_ack = ar71xx_pci_irq_mask,
};
static struct irqaction ar71xx_pci_irqaction = {
.handler = no_action,
.name = "cascade [AR71XX PCI]",
};
static void __init ar71xx_pci_irq_init(void)
{
int i;
ar71xx_ip2_irq_handler = ar71xx_pci_irq_dispatch;
ar71xx_reset_wr(AR71XX_RESET_REG_PCI_INT_ENABLE, 0);
ar71xx_reset_wr(AR71XX_RESET_REG_PCI_INT_STATUS, 0);
@ -95,10 +86,10 @@ static void __init ar71xx_pci_irq_init(void)
handle_level_irq);
}
setup_irq(AR71XX_CPU_IRQ_IP2, &ar71xx_pci_irqaction);
set_irq_chained_handler(AR71XX_CPU_IRQ_IP2, ar71xx_pci_irq_handler);
}
static void ar724x_pci_irq_dispatch(void)
static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
{
u32 pending;
@ -106,7 +97,7 @@ static void ar724x_pci_irq_dispatch(void)
ar724x_pci_rr(AR724X_PCI_REG_INT_MASK);
if (pending & AR724X_PCI_INT_DEV0)
do_IRQ(AR71XX_PCI_IRQ_DEV0);
generic_handle_irq(AR71XX_PCI_IRQ_DEV0);
else
spurious_interrupt();
@ -151,11 +142,6 @@ static struct irq_chip ar724x_pci_irq_chip = {
.mask_ack = ar724x_pci_irq_mask,
};
static struct irqaction ar724x_pci_irqaction = {
.handler = no_action,
.name = "cascade [AR724X PCI]",
};
static void __init ar724x_pci_irq_init(void)
{
u32 t;
@ -167,8 +153,6 @@ static void __init ar724x_pci_irq_init(void)
return;
}
ar71xx_ip2_irq_handler = ar724x_pci_irq_dispatch;
ar724x_pci_wr(AR724X_PCI_REG_INT_MASK, 0);
ar724x_pci_wr(AR724X_PCI_REG_INT_STATUS, 0);
@ -179,7 +163,7 @@ static void __init ar724x_pci_irq_init(void)
handle_level_irq);
}
setup_irq(AR71XX_CPU_IRQ_IP2, &ar724x_pci_irqaction);
set_irq_chained_handler(AR71XX_CPU_IRQ_IP2, ar724x_pci_irq_handler);
}
#else
static inline void ar71xx_pci_irq_init(void) {};
@ -366,11 +350,6 @@ static void __init ar71xx_misc_irq_init(void)
setup_irq(AR71XX_CPU_IRQ_MISC, &ar71xx_misc_irqaction);
}
static void ar913x_wmac_irq_dispatch(void)
{
do_IRQ(AR71XX_CPU_IRQ_IP2);
}
asmlinkage void plat_irq_dispatch(void)
{
unsigned long pending;
@ -381,7 +360,7 @@ asmlinkage void plat_irq_dispatch(void)
do_IRQ(AR71XX_CPU_IRQ_TIMER);
else if (pending & STATUSF_IP2)
ar71xx_ip2_irq_handler();
do_IRQ(AR71XX_CPU_IRQ_IP2);
else if (pending & STATUSF_IP4)
do_IRQ(AR71XX_CPU_IRQ_GE0);
@ -416,12 +395,8 @@ void __init arch_init_irq(void)
case AR71XX_SOC_AR7240:
ar724x_pci_irq_init();
break;
case AR71XX_SOC_AR9130:
case AR71XX_SOC_AR9132:
ar71xx_ip2_irq_handler = ar913x_wmac_irq_dispatch;
break;
default:
BUG();
break;
}
ar71xx_gpio_irq_init();