linux/arch/arm/mach-orion5x/irq.c
Arnd Bergmann c22c2c6008 ARM: orion5x: clean up mach/*.h headers
This is a simple move of all header files that are no longer
included by anything else from the include/mach directory
to the platform directory itself as preparation for
multiplatform support.

The mach/uncompress.h headers are left in place for now,
and are mildly modified to be independent of the other
headers. They will be removed entirely when ARCH_MULTIPLATFORM
gets enabled and they become obsolete.

Rather than updating the path names inside of the comments
of each header, I delete those comments to avoid having to
update them again, should they get moved or copied another
time.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-12-07 18:17:48 +01:00

55 lines
1.2 KiB
C

/*
* arch/arm/mach-orion5x/irq.c
*
* Core IRQ functions for Marvell Orion System On Chip
*
* Maintainer: Tzachi Perelstein <tzachi@marvell.com>
*
* 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/gpio.h>
#include <linux/kernel.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <plat/orion-gpio.h>
#include <plat/irq.h>
#include <asm/exception.h>
#include "bridge-regs.h"
#include "common.h"
static int __initdata gpio0_irqs[4] = {
IRQ_ORION5X_GPIO_0_7,
IRQ_ORION5X_GPIO_8_15,
IRQ_ORION5X_GPIO_16_23,
IRQ_ORION5X_GPIO_24_31,
};
asmlinkage void
__exception_irq_entry orion5x_legacy_handle_irq(struct pt_regs *regs)
{
u32 stat;
stat = readl_relaxed(MAIN_IRQ_CAUSE);
stat &= readl_relaxed(MAIN_IRQ_MASK);
if (stat) {
unsigned int hwirq = 1 + __fls(stat);
handle_IRQ(hwirq, regs);
return;
}
}
void __init orion5x_init_irq(void)
{
orion_irq_init(1, MAIN_IRQ_MASK);
set_handle_irq(orion5x_legacy_handle_irq);
/*
* Initialize gpiolib for GPIOs 0-31.
*/
orion_gpio_init(NULL, 0, 32, GPIO_VIRT_BASE, 0,
IRQ_ORION5X_GPIO_START, gpio0_irqs);
}