diff options
Diffstat (limited to 'arch/arm/common/vic.c')
| -rw-r--r-- | arch/arm/common/vic.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c deleted file mode 100644 index c026fa2214a..00000000000 --- a/arch/arm/common/vic.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * linux/arch/arm/common/vic.c - * - * Copyright (C) 1999 - 2003 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions Ltd - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include <linux/init.h> -#include <linux/list.h> - -#include <asm/io.h> -#include <asm/mach/irq.h> -#include <asm/hardware/vic.h> - -static void vic_mask_irq(unsigned int irq) -{ - void __iomem *base = get_irq_chip_data(irq); - irq &= 31; - writel(1 << irq, base + VIC_INT_ENABLE_CLEAR); -} - -static void vic_unmask_irq(unsigned int irq) -{ - void __iomem *base = get_irq_chip_data(irq); - irq &= 31; - writel(1 << irq, base + VIC_INT_ENABLE); -} - -static struct irq_chip vic_chip = { - .name = "VIC", - .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) -{ - unsigned int i; - - /* 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); - - /* - * Make sure we clear all existing interrupts - */ - writel(0, 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); - } - - for (i = 0; i < 16; i++) { - void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4); - writel(VIC_VECT_CNTL_ENABLE | i, reg); - } - - writel(32, base + VIC_DEF_VECT_ADDR); - - for (i = 0; i < 32; i++) { - unsigned int irq = irq_start + i; - - set_irq_chip(irq, &vic_chip); - set_irq_chip_data(irq, base); - - if (vic_sources & (1 << i)) { - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); - } - } -} |
