diff options
Diffstat (limited to 'arch/arm/mach-gemini/irq.c')
-rw-r--r-- | arch/arm/mach-gemini/irq.c | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/arch/arm/mach-gemini/irq.c b/arch/arm/mach-gemini/irq.c deleted file mode 100644 index d929b3ff18fd..000000000000 --- a/arch/arm/mach-gemini/irq.c +++ /dev/null @@ -1,105 +0,0 @@ -/* - * Interrupt routines for Gemini - * - * Copyright (C) 2001-2006 Storlink, Corp. - * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ -#include <linux/init.h> -#include <linux/io.h> -#include <linux/ioport.h> -#include <linux/stddef.h> -#include <linux/list.h> -#include <linux/sched.h> -#include <linux/cpu.h> - -#include <asm/irq.h> -#include <asm/mach/irq.h> -#include <asm/system_misc.h> -#include <mach/hardware.h> - -#define IRQ_SOURCE(base_addr) (base_addr + 0x00) -#define IRQ_MASK(base_addr) (base_addr + 0x04) -#define IRQ_CLEAR(base_addr) (base_addr + 0x08) -#define IRQ_TMODE(base_addr) (base_addr + 0x0C) -#define IRQ_TLEVEL(base_addr) (base_addr + 0x10) -#define IRQ_STATUS(base_addr) (base_addr + 0x14) -#define FIQ_SOURCE(base_addr) (base_addr + 0x20) -#define FIQ_MASK(base_addr) (base_addr + 0x24) -#define FIQ_CLEAR(base_addr) (base_addr + 0x28) -#define FIQ_TMODE(base_addr) (base_addr + 0x2C) -#define FIQ_LEVEL(base_addr) (base_addr + 0x30) -#define FIQ_STATUS(base_addr) (base_addr + 0x34) - -static void gemini_ack_irq(struct irq_data *d) -{ - __raw_writel(1 << d->irq, IRQ_CLEAR(IO_ADDRESS(GEMINI_INTERRUPT_BASE))); -} - -static void gemini_mask_irq(struct irq_data *d) -{ - unsigned int mask; - - mask = __raw_readl(IRQ_MASK(IO_ADDRESS(GEMINI_INTERRUPT_BASE))); - mask &= ~(1 << d->irq); - __raw_writel(mask, IRQ_MASK(IO_ADDRESS(GEMINI_INTERRUPT_BASE))); -} - -static void gemini_unmask_irq(struct irq_data *d) -{ - unsigned int mask; - - mask = __raw_readl(IRQ_MASK(IO_ADDRESS(GEMINI_INTERRUPT_BASE))); - mask |= (1 << d->irq); - __raw_writel(mask, IRQ_MASK(IO_ADDRESS(GEMINI_INTERRUPT_BASE))); -} - -static struct irq_chip gemini_irq_chip = { - .name = "INTC", - .irq_ack = gemini_ack_irq, - .irq_mask = gemini_mask_irq, - .irq_unmask = gemini_unmask_irq, -}; - -static struct resource irq_resource = { - .name = "irq_handler", - .start = GEMINI_INTERRUPT_BASE, - .end = FIQ_STATUS(GEMINI_INTERRUPT_BASE) + 4, -}; - -void __init gemini_init_irq(void) -{ - unsigned int i, mode = 0, level = 0; - - /* - * Disable the idle handler by default since it is buggy - * For more info see arch/arm/mach-gemini/idle.c - */ - cpu_idle_poll_ctrl(true); - - request_resource(&iomem_resource, &irq_resource); - - for (i = 0; i < NR_IRQS; i++) { - irq_set_chip(i, &gemini_irq_chip); - if((i >= IRQ_TIMER1 && i <= IRQ_TIMER3) || (i >= IRQ_SERIRQ0 && i <= IRQ_SERIRQ1)) { - irq_set_handler(i, handle_edge_irq); - mode |= 1 << i; - level |= 1 << i; - } else { - irq_set_handler(i, handle_level_irq); - } - irq_clear_status_flags(i, IRQ_NOREQUEST | IRQ_NOPROBE); - } - - /* Disable all interrupts */ - __raw_writel(0, IRQ_MASK(IO_ADDRESS(GEMINI_INTERRUPT_BASE))); - __raw_writel(0, FIQ_MASK(IO_ADDRESS(GEMINI_INTERRUPT_BASE))); - - /* Set interrupt mode */ - __raw_writel(mode, IRQ_TMODE(IO_ADDRESS(GEMINI_INTERRUPT_BASE))); - __raw_writel(level, IRQ_TLEVEL(IO_ADDRESS(GEMINI_INTERRUPT_BASE))); -} |