diff options
Diffstat (limited to 'arch/arm/mach-prima2/irq.c')
-rw-r--r-- | arch/arm/mach-prima2/irq.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/arch/arm/mach-prima2/irq.c b/arch/arm/mach-prima2/irq.c deleted file mode 100644 index c3404cbb6ff..00000000000 --- a/arch/arm/mach-prima2/irq.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * interrupt controller support for CSR SiRFprimaII - * - * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. - * - * Licensed under GPLv2 or later. - */ - -#include <linux/init.h> -#include <linux/io.h> -#include <linux/irq.h> -#include <mach/hardware.h> -#include <asm/mach/irq.h> -#include <linux/of.h> -#include <linux/of_address.h> - -#define SIRFSOC_INT_RISC_MASK0 0x0018 -#define SIRFSOC_INT_RISC_MASK1 0x001C -#define SIRFSOC_INT_RISC_LEVEL0 0x0020 -#define SIRFSOC_INT_RISC_LEVEL1 0x0024 - -void __iomem *sirfsoc_intc_base; - -static __init void -sirfsoc_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num) -{ - struct irq_chip_generic *gc; - struct irq_chip_type *ct; - - gc = irq_alloc_generic_chip("SIRFINTC", 1, irq_start, base, handle_level_irq); - ct = gc->chip_types; - - ct->chip.irq_mask = irq_gc_mask_clr_bit; - ct->chip.irq_unmask = irq_gc_mask_set_bit; - ct->regs.mask = SIRFSOC_INT_RISC_MASK0; - - irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE, IRQ_NOREQUEST, 0); -} - -static __init void sirfsoc_irq_init(void) -{ - sirfsoc_alloc_gc(sirfsoc_intc_base, 0, 32); - sirfsoc_alloc_gc(sirfsoc_intc_base + 4, 32, SIRFSOC_INTENAL_IRQ_END - 32); - - writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL0); - writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL1); - - writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK0); - writel_relaxed(0, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK1); -} - -static struct of_device_id intc_ids[] = { - { .compatible = "sirf,prima2-intc" }, -}; - -void __init sirfsoc_of_irq_init(void) -{ - struct device_node *np; - - np = of_find_matching_node(NULL, intc_ids); - if (!np) - panic("unable to find compatible intc node in dtb\n"); - - sirfsoc_intc_base = of_iomap(np, 0); - if (!sirfsoc_intc_base) - panic("unable to map intc cpu registers\n"); - - of_node_put(np); - - sirfsoc_irq_init(); -} |