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author | Florian Fainelli <florian@openwrt.org> | 2013-03-16 22:25:47 +0000 |
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committer | Florian Fainelli <florian@openwrt.org> | 2013-03-16 22:25:47 +0000 |
commit | 61de74b7f58ba44f2df14a47bad49370f434dda0 (patch) | |
tree | 7050f81482c126e5757cb2eae70d1780ad453e0a /target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c | |
parent | 4ac0d0408c881df774304884781d4c8969357651 (diff) | |
download | master-187ad058-61de74b7f58ba44f2df14a47bad49370f434dda0.tar.gz master-187ad058-61de74b7f58ba44f2df14a47bad49370f434dda0.tar.bz2 master-187ad058-61de74b7f58ba44f2df14a47bad49370f434dda0.zip |
mcs814x: implement MULTI_IRQ_HANDLER
Allows us to get rid of the IRQ entry point assembly
Signed-off-by: Florian Fainelli <florian@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36060 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c')
-rw-r--r-- | target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c index c1e48927de..b49e51190a 100644 --- a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c +++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c @@ -16,7 +16,7 @@ #include <asm/mach/irq.h> #include <mach/mcs814x.h> -void __iomem *mcs814x_intc_base; +static void __iomem *mcs814x_intc_base; static void __init mcs814x_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num) @@ -43,6 +43,26 @@ static void __init mcs814x_alloc_gc(void __iomem *base, unsigned int irq_start, writel_relaxed(0xffffffff, base + MCS814X_IRQ_ICR); } +asmlinkage void __exception_irq_entry mcs814x_handle_irq(struct pt_regs *regs) +{ + u32 status, irq; + + do { + /* read the status register */ + status = __raw_readl(mcs814x_intc_base + MCS814X_IRQ_STS0); + if (!status) + break; + + irq = ffs(status) - 1; + status |= (1 << irq); + /* clear the interrupt */ + __raw_writel(status, mcs814x_intc_base + MCS814X_IRQ_STS0); + /* call the generic handler */ + handle_IRQ(irq, regs); + + } while (1); +} + static const struct of_device_id mcs814x_intc_ids[] = { { .compatible = "moschip,mcs814x-intc" }, { /* sentinel */ }, |