2c130fd529
From: Juergen Beisert <j.beisert@pengutronix.de> This patch cleans up the in-kernel platform code from doxygen comments. We don't know how this could have leak in, but anyway. Changes since last release: - none Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de> Signed-off-by: Ross Wille <wille@freescale.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/*
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* Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/errno.h>
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#include <asm/hardware.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/mach/irq.h>
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#include <asm/arch/common.h>
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/* Disable interrupt number "irq" in the AVIC */
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static void mxc_mask_irq(unsigned int irq)
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{
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__raw_writel(irq, AVIC_INTDISNUM);
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}
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/* Enable interrupt number "irq" in the AVIC */
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static void mxc_unmask_irq(unsigned int irq)
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{
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__raw_writel(irq, AVIC_INTENNUM);
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}
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static struct irq_chip mxc_avic_chip = {
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.mask_ack = mxc_mask_irq,
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.mask = mxc_mask_irq,
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.unmask = mxc_unmask_irq,
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};
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/*
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* This function initializes the AVIC hardware and disables all the
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* interrupts. It registers the interrupt enable and disable functions
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* to the kernel for each interrupt source.
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*/
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void __init mxc_init_irq(void)
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{
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int i;
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u32 reg;
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/* put the AVIC into the reset value with
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* all interrupts disabled
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*/
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__raw_writel(0, AVIC_INTCNTL);
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__raw_writel(0x1f, AVIC_NIMASK);
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/* disable all interrupts */
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__raw_writel(0, AVIC_INTENABLEH);
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__raw_writel(0, AVIC_INTENABLEL);
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/* all IRQ no FIQ */
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__raw_writel(0, AVIC_INTTYPEH);
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__raw_writel(0, AVIC_INTTYPEL);
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for (i = 0; i < MXC_MAX_INT_LINES; i++) {
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set_irq_chip(i, &mxc_avic_chip);
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set_irq_handler(i, handle_level_irq);
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set_irq_flags(i, IRQF_VALID);
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}
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/* Set WDOG2's interrupt the highest priority level (bit 28-31) */
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reg = __raw_readl(AVIC_NIPRIORITY6);
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reg |= (0xF << 28);
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__raw_writel(reg, AVIC_NIPRIORITY6);
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printk(KERN_INFO "MXC IRQ initialized\n");
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}
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