X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Farm%2Fcommon%2Fvic.c;fp=arch%2Farm%2Fcommon%2Fvic.c;h=a45ed1687a591eb27c5db61af904d0280446feb9;hb=64ba3f394c830ec48a1c31b53dcae312c56f1604;hp=43d278134521a23f7d5ab9e9075d3de0e9ab6efb;hpb=be1e6109ac94a859551f8e1774eb9a8469fe055c;p=linux-2.6.git diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c index 43d278134..a45ed1687 100644 --- a/arch/arm/common/vic.c +++ b/arch/arm/common/vic.c @@ -22,73 +22,67 @@ #include #include +#include #include #include +static void __iomem *vic_base; + static void vic_mask_irq(unsigned int irq) { - void __iomem *base = get_irq_chipdata(irq); - irq &= 31; - writel(1 << irq, base + VIC_INT_ENABLE_CLEAR); + irq -= IRQ_VIC_START; + writel(1 << irq, vic_base + VIC_INT_ENABLE_CLEAR); } static void vic_unmask_irq(unsigned int irq) { - void __iomem *base = get_irq_chipdata(irq); - irq &= 31; - writel(1 << irq, base + VIC_INT_ENABLE); + irq -= IRQ_VIC_START; + writel(1 << irq, vic_base + VIC_INT_ENABLE); } -static struct irq_chip vic_chip = { - .name = "VIC", +static struct irqchip vic_chip = { .ack = vic_mask_irq, .mask = vic_mask_irq, .unmask = vic_unmask_irq, }; -/** - * vic_init - initialise a vectored interrupt controller - * @base: iomem base address - * @irq_start: starting interrupt number, must be muliple of 32 - * @vic_sources: bitmask of interrupt sources to allow - */ -void __init vic_init(void __iomem *base, unsigned int irq_start, - u32 vic_sources) +void __init vic_init(void __iomem *base, u32 vic_sources) { unsigned int i; + vic_base = base; + /* Disable all interrupts initially. */ - writel(0, base + VIC_INT_SELECT); - writel(0, base + VIC_INT_ENABLE); - writel(~0, base + VIC_INT_ENABLE_CLEAR); - writel(0, base + VIC_IRQ_STATUS); - writel(0, base + VIC_ITCR); - writel(~0, base + VIC_INT_SOFT_CLEAR); + writel(0, vic_base + VIC_INT_SELECT); + writel(0, vic_base + VIC_INT_ENABLE); + writel(~0, vic_base + VIC_INT_ENABLE_CLEAR); + writel(0, vic_base + VIC_IRQ_STATUS); + writel(0, vic_base + VIC_ITCR); + writel(~0, vic_base + VIC_INT_SOFT_CLEAR); /* * Make sure we clear all existing interrupts */ - writel(0, base + VIC_VECT_ADDR); + writel(0, vic_base + VIC_VECT_ADDR); for (i = 0; i < 19; i++) { unsigned int value; - value = readl(base + VIC_VECT_ADDR); - writel(value, base + VIC_VECT_ADDR); + value = readl(vic_base + VIC_VECT_ADDR); + writel(value, vic_base + VIC_VECT_ADDR); } for (i = 0; i < 16; i++) { - void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4); + void __iomem *reg = vic_base + VIC_VECT_CNTL0 + (i * 4); writel(VIC_VECT_CNTL_ENABLE | i, reg); } - writel(32, base + VIC_DEF_VECT_ADDR); + writel(32, vic_base + VIC_DEF_VECT_ADDR); for (i = 0; i < 32; i++) { - unsigned int irq = irq_start + i; + unsigned int irq = IRQ_VIC_START + i; set_irq_chip(irq, &vic_chip); - set_irq_chipdata(irq, base); if (vic_sources & (1 << i)) { set_irq_handler(irq, do_level_IRQ);