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[mcs814x] do not use MULTI_IRQ_HANDLER it is bogus on our platform

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This caused stalls in the Ethernet DMA block, so until properly
written and sorted out, fallback to the assembly version instead.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32470 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
florian
2012-06-20 21:57:45 +00:00
parent 85bb2ebefa
commit 3a5b7c7629
3 changed files with 25 additions and 23 deletions
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22
target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c
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@@ -20,7 +20,7 @@
#define MCS814X_IRQ_MASK 0x20
#define MCS814X_IRQ_STS0 0x40
static void __iomem *mcs814x_intc_base;
void __iomem *mcs814x_intc_base;
static void __init mcs814x_alloc_gc(void __iomem *base, unsigned int irq_start,
unsigned int num)
@@ -47,26 +47,6 @@ static void __init mcs814x_alloc_gc(void __iomem *base, unsigned int irq_start,
__raw_writel(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_ICR);
/* call the generic handler */
handle_IRQ(irq, regs);
} while (1);
}
static const struct of_device_id mcs814x_intc_ids[] = {
{ .compatible = "moschip,mcs814x-intc" },
{ /* sentinel */ },