diff options
Diffstat (limited to 'arch/arm/mach-pnx4008/irq.c')
| -rw-r--r-- | arch/arm/mach-pnx4008/irq.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/arch/arm/mach-pnx4008/irq.c b/arch/arm/mach-pnx4008/irq.c deleted file mode 100644 index 5ed67e1947a..00000000000 --- a/arch/arm/mach-pnx4008/irq.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * arch/arm/mach-pnx4008/irq.c - * - * PNX4008 IRQ controller driver - * - * Author: Dmitry Chigirev <source@mvista.com> - * - * Based on reference code received from Philips: - * Copyright (C) 2003 Philips Semiconductors - * - * 2005 (c) MontaVista Software, Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/list.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/device.h> -#include <linux/irq.h> -#include <asm/hardware.h> -#include <asm/io.h> -#include <asm/setup.h> -#include <asm/mach-types.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/system.h> -#include <asm/mach/arch.h> -#include <asm/mach/irq.h> -#include <asm/mach/map.h> -#include <asm/arch/irq.h> - -static u8 pnx4008_irq_type[NR_IRQS] = PNX4008_IRQ_TYPES; - -static void pnx4008_mask_irq(unsigned int irq) -{ - __raw_writel(__raw_readl(INTC_ER(irq)) & ~INTC_BIT(irq), INTC_ER(irq)); /* mask interrupt */ -} - -static void pnx4008_unmask_irq(unsigned int irq) -{ - __raw_writel(__raw_readl(INTC_ER(irq)) | INTC_BIT(irq), INTC_ER(irq)); /* unmask interrupt */ -} - -static void pnx4008_mask_ack_irq(unsigned int irq) -{ - __raw_writel(__raw_readl(INTC_ER(irq)) & ~INTC_BIT(irq), INTC_ER(irq)); /* mask interrupt */ - __raw_writel(INTC_BIT(irq), INTC_SR(irq)); /* clear interrupt status */ -} - -static int pnx4008_set_irq_type(unsigned int irq, unsigned int type) -{ - switch (type) { - case IRQ_TYPE_EDGE_RISING: - __raw_writel(__raw_readl(INTC_ATR(irq)) | INTC_BIT(irq), INTC_ATR(irq)); /*edge sensitive */ - __raw_writel(__raw_readl(INTC_APR(irq)) | INTC_BIT(irq), INTC_APR(irq)); /*rising edge */ - set_irq_handler(irq, handle_edge_irq); - break; - case IRQ_TYPE_EDGE_FALLING: - __raw_writel(__raw_readl(INTC_ATR(irq)) | INTC_BIT(irq), INTC_ATR(irq)); /*edge sensitive */ - __raw_writel(__raw_readl(INTC_APR(irq)) & ~INTC_BIT(irq), INTC_APR(irq)); /*falling edge */ - set_irq_handler(irq, handle_edge_irq); - break; - case IRQ_TYPE_LEVEL_LOW: - __raw_writel(__raw_readl(INTC_ATR(irq)) & ~INTC_BIT(irq), INTC_ATR(irq)); /*level sensitive */ - __raw_writel(__raw_readl(INTC_APR(irq)) & ~INTC_BIT(irq), INTC_APR(irq)); /*low level */ - set_irq_handler(irq, handle_level_irq); - break; - case IRQ_TYPE_LEVEL_HIGH: - __raw_writel(__raw_readl(INTC_ATR(irq)) & ~INTC_BIT(irq), INTC_ATR(irq)); /*level sensitive */ - __raw_writel(__raw_readl(INTC_APR(irq)) | INTC_BIT(irq), INTC_APR(irq)); /* high level */ - set_irq_handler(irq, handle_level_irq); - break; - - /* IRQ_TYPE_EDGE_BOTH is not supported */ - default: - printk(KERN_ERR "PNX4008 IRQ: Unsupported irq type %d\n", type); - return -1; - } - return 0; -} - -static struct irq_chip pnx4008_irq_chip = { - .ack = pnx4008_mask_ack_irq, - .mask = pnx4008_mask_irq, - .unmask = pnx4008_unmask_irq, - .set_type = pnx4008_set_irq_type, -}; - -void __init pnx4008_init_irq(void) -{ - unsigned int i; - - /* configure IRQ's */ - for (i = 0; i < NR_IRQS; i++) { - set_irq_flags(i, IRQF_VALID); - set_irq_chip(i, &pnx4008_irq_chip); - pnx4008_set_irq_type(i, pnx4008_irq_type[i]); - } - - /* configure and enable IRQ 0,1,30,31 (cascade interrupts) */ - pnx4008_set_irq_type(SUB1_IRQ_N, pnx4008_irq_type[SUB1_IRQ_N]); - pnx4008_set_irq_type(SUB2_IRQ_N, pnx4008_irq_type[SUB2_IRQ_N]); - pnx4008_set_irq_type(SUB1_FIQ_N, pnx4008_irq_type[SUB1_FIQ_N]); - pnx4008_set_irq_type(SUB2_FIQ_N, pnx4008_irq_type[SUB2_FIQ_N]); - - /* mask all others */ - __raw_writel((1 << SUB2_FIQ_N) | (1 << SUB1_FIQ_N) | - (1 << SUB2_IRQ_N) | (1 << SUB1_IRQ_N), - INTC_ER(MAIN_BASE_INT)); - __raw_writel(0, INTC_ER(SIC1_BASE_INT)); - __raw_writel(0, INTC_ER(SIC2_BASE_INT)); -} - |