kernel-ark/arch/arm/plat-orion/irq.c
Andrew Lunn f9e7592230 ARM: Kirkwood: Make use of mvebu pincltl and gpio drivers
Select the generic mvebu kirkwood pincltr driver and generic mvebu
gpio driver. This requires minor changes to the DT, and the calls to
configure plat-orion gpio driver are removed.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Michael Walle <michael@walle.cc>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Tested-by: Jamie Lentin <jm@lentin.co.uk>
Tested-by: Joshua Coombs <josh.coombs@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-11-24 02:57:35 +00:00

71 lines
1.6 KiB
C

/*
* arch/arm/plat-orion/irq.c
*
* Marvell Orion SoC IRQ handling.
*
* 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/init.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/io.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <plat/irq.h>
#include <plat/orion-gpio.h>
void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
{
struct irq_chip_generic *gc;
struct irq_chip_type *ct;
/*
* Mask all interrupts initially.
*/
writel(0, maskaddr);
gc = irq_alloc_generic_chip("orion_irq", 1, irq_start, maskaddr,
handle_level_irq);
ct = gc->chip_types;
ct->chip.irq_mask = irq_gc_mask_clr_bit;
ct->chip.irq_unmask = irq_gc_mask_set_bit;
irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_MASK_CACHE,
IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE);
}
#ifdef CONFIG_OF
static int __init orion_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
int i = 0;
void __iomem *base;
do {
base = of_iomap(np, i);
if (base) {
orion_irq_init(i * 32, base);
i++;
}
} while (base);
irq_domain_add_legacy(np, i * 32, 0, 0,
&irq_domain_simple_ops, NULL);
return 0;
}
static const struct of_device_id orion_irq_match[] = {
{ .compatible = "marvell,orion-intc",
.data = orion_add_irq_domain, },
{},
};
void __init orion_dt_init_irq(void)
{
of_irq_init(orion_irq_match);
}
#endif