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Commit d3d5a2c9 authored by Heiko Stuebner's avatar Heiko Stuebner Committed by Kukjin Kim
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ARM: S3C24XX: move s3c2412 irq init to common code 

Base for further cleanups
Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 59295708
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Showing with 155 additions and 193 deletions
arch/arm/mach-s3c24xx/Makefile
View file @ d3d5a2c9
......@@ -22,7 +22,7 @@ obj-$(CONFIG_S3C2410_DMA) += dma-s3c2410.o
obj-$(CONFIG_S3C2410_PLL) += pll-s3c2410.o
obj-$(CONFIG_S3C2410_PM) += pm-s3c2410.o sleep-s3c2410.o
obj-$(CONFIG_CPU_S3C2412) += s3c2412.o irq-s3c2412.o clock-s3c2412.o
obj-$(CONFIG_CPU_S3C2412) += s3c2412.o clock-s3c2412.o
obj-$(CONFIG_S3C2412_CPUFREQ) += cpufreq-s3c2412.o
obj-$(CONFIG_S3C2412_DMA) += dma-s3c2412.o
obj-$(CONFIG_S3C2412_PM) += pm-s3c2412.o
......
arch/arm/mach-s3c24xx/irq-s3c2412.c deleted 100644 → 0
View file @ 59295708
/* linux/arch/arm/mach-s3c2412/irq.c
*
* Copyright (c) 2006 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* 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/module.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach/irq.h>
#include <mach/regs-irq.h>
#include <mach/regs-gpio.h>
#include <plat/cpu.h>
#include <plat/irq.h>
#include <plat/pm.h>
#include "s3c2412-power.h"
#define INTMSK(start, end) ((1 << ((end) + 1 - (start))) - 1)
#define INTMSK_SUB(start, end) (INTMSK(start, end) << ((start - S3C2410_IRQSUB(0))))
/* the s3c2412 changes the behaviour of IRQ_EINT0 through IRQ_EINT3 by
* having them turn up in both the INT* and the EINT* registers. Whilst
* both show the status, they both now need to be acked when the IRQs
* go off.
*/
static void
s3c2412_irq_mask(struct irq_data *data)
{
unsigned long bitval = 1UL << (data->irq - IRQ_EINT0);
unsigned long mask;
mask = __raw_readl(S3C2410_INTMSK);
__raw_writel(mask | bitval, S3C2410_INTMSK);
mask = __raw_readl(S3C2412_EINTMASK);
__raw_writel(mask | bitval, S3C2412_EINTMASK);
}
static inline void
s3c2412_irq_ack(struct irq_data *data)
{
unsigned long bitval = 1UL << (data->irq - IRQ_EINT0);
__raw_writel(bitval, S3C2412_EINTPEND);
__raw_writel(bitval, S3C2410_SRCPND);
__raw_writel(bitval, S3C2410_INTPND);
}
static inline void
s3c2412_irq_maskack(struct irq_data *data)
{
unsigned long bitval = 1UL << (data->irq - IRQ_EINT0);
unsigned long mask;
mask = __raw_readl(S3C2410_INTMSK);
__raw_writel(mask|bitval, S3C2410_INTMSK);
mask = __raw_readl(S3C2412_EINTMASK);
__raw_writel(mask | bitval, S3C2412_EINTMASK);
__raw_writel(bitval, S3C2412_EINTPEND);
__raw_writel(bitval, S3C2410_SRCPND);
__raw_writel(bitval, S3C2410_INTPND);
}
static void
s3c2412_irq_unmask(struct irq_data *data)
{
unsigned long bitval = 1UL << (data->irq - IRQ_EINT0);
unsigned long mask;
mask = __raw_readl(S3C2412_EINTMASK);
__raw_writel(mask & ~bitval, S3C2412_EINTMASK);
mask = __raw_readl(S3C2410_INTMSK);
__raw_writel(mask & ~bitval, S3C2410_INTMSK);
}
static struct irq_chip s3c2412_irq_eint0t4 = {
.irq_ack = s3c2412_irq_ack,
.irq_mask = s3c2412_irq_mask,
.irq_unmask = s3c2412_irq_unmask,
.irq_set_wake = s3c_irq_wake,
.irq_set_type = s3c_irqext_type,
};
#define INTBIT(x) (1 << ((x) - S3C2410_IRQSUB(0)))
/* CF and SDI sub interrupts */
static void s3c2412_irq_demux_cfsdi(unsigned int irq, struct irq_desc *desc)
{
unsigned int subsrc, submsk;
subsrc = __raw_readl(S3C2410_SUBSRCPND);
submsk = __raw_readl(S3C2410_INTSUBMSK);
subsrc &= ~submsk;
if (subsrc & INTBIT(IRQ_S3C2412_SDI))
generic_handle_irq(IRQ_S3C2412_SDI);
if (subsrc & INTBIT(IRQ_S3C2412_CF))
generic_handle_irq(IRQ_S3C2412_CF);
}
#define INTMSK_CFSDI (1UL << (IRQ_S3C2412_CFSDI - IRQ_EINT0))
#define SUBMSK_CFSDI INTMSK_SUB(IRQ_S3C2412_SDI, IRQ_S3C2412_CF)
static void s3c2412_irq_cfsdi_mask(struct irq_data *data)
{
s3c_irqsub_mask(data->irq, INTMSK_CFSDI, SUBMSK_CFSDI);
}
static void s3c2412_irq_cfsdi_unmask(struct irq_data *data)
{
s3c_irqsub_unmask(data->irq, INTMSK_CFSDI);
}
static void s3c2412_irq_cfsdi_ack(struct irq_data *data)
{
s3c_irqsub_maskack(data->irq, INTMSK_CFSDI, SUBMSK_CFSDI);
}
static struct irq_chip s3c2412_irq_cfsdi = {
.name = "s3c2412-cfsdi",
.irq_ack = s3c2412_irq_cfsdi_ack,
.irq_mask = s3c2412_irq_cfsdi_mask,
.irq_unmask = s3c2412_irq_cfsdi_unmask,
};
static int s3c2412_irq_add(struct device *dev, struct subsys_interface *sif)
{
unsigned int irqno;
for (irqno = IRQ_EINT0; irqno <= IRQ_EINT3; irqno++) {
irq_set_chip_and_handler(irqno, &s3c2412_irq_eint0t4,
handle_edge_irq);
set_irq_flags(irqno, IRQF_VALID);
}
/* add demux support for CF/SDI */
irq_set_chained_handler(IRQ_S3C2412_CFSDI, s3c2412_irq_demux_cfsdi);
for (irqno = IRQ_S3C2412_SDI; irqno <= IRQ_S3C2412_CF; irqno++) {
irq_set_chip_and_handler(irqno, &s3c2412_irq_cfsdi,
handle_level_irq);
set_irq_flags(irqno, IRQF_VALID);
}
return 0;
}
static struct subsys_interface s3c2412_irq_interface = {
.name = "s3c2412_irq",
.subsys = &s3c2412_subsys,
.add_dev = s3c2412_irq_add,
};
static int s3c2412_irq_init(void)
{
return subsys_interface_register(&s3c2412_irq_interface);
}
arch_initcall(s3c2412_irq_init);
arch/arm/mach-s3c24xx/irq.c
View file @ d3d5a2c9
......@@ -626,6 +626,160 @@ void __init s3c24xx_init_irq(void)
s3c24xx_init_intc(NULL, &init_eint[0], main_intc, 0x560000a4);
}
#ifdef CONFIG_CPU_S3C2412
#define INTMSK(start, end) ((1 << ((end) + 1 - (start))) - 1)
#define INTMSK_SUB(start, end) (INTMSK(start, end) << ((start - S3C2410_IRQSUB(0))))
/* the s3c2412 changes the behaviour of IRQ_EINT0 through IRQ_EINT3 by
* having them turn up in both the INT* and the EINT* registers. Whilst
* both show the status, they both now need to be acked when the IRQs
* go off.
*/
static void
s3c2412_irq_mask(struct irq_data *data)
{
unsigned long bitval = 1UL << (data->irq - IRQ_EINT0);
unsigned long mask;
mask = __raw_readl(S3C2410_INTMSK);
__raw_writel(mask | bitval, S3C2410_INTMSK);
mask = __raw_readl(S3C2412_EINTMASK);
__raw_writel(mask | bitval, S3C2412_EINTMASK);
}
static inline void
s3c2412_irq_ack(struct irq_data *data)
{
unsigned long bitval = 1UL << (data->irq - IRQ_EINT0);
__raw_writel(bitval, S3C2412_EINTPEND);
__raw_writel(bitval, S3C2410_SRCPND);
__raw_writel(bitval, S3C2410_INTPND);
}
static inline void
s3c2412_irq_maskack(struct irq_data *data)
{
unsigned long bitval = 1UL << (data->irq - IRQ_EINT0);
unsigned long mask;
mask = __raw_readl(S3C2410_INTMSK);
__raw_writel(mask|bitval, S3C2410_INTMSK);
mask = __raw_readl(S3C2412_EINTMASK);
__raw_writel(mask | bitval, S3C2412_EINTMASK);
__raw_writel(bitval, S3C2412_EINTPEND);
__raw_writel(bitval, S3C2410_SRCPND);
__raw_writel(bitval, S3C2410_INTPND);
}
static void
s3c2412_irq_unmask(struct irq_data *data)
{
unsigned long bitval = 1UL << (data->irq - IRQ_EINT0);
unsigned long mask;
mask = __raw_readl(S3C2412_EINTMASK);
__raw_writel(mask & ~bitval, S3C2412_EINTMASK);
mask = __raw_readl(S3C2410_INTMSK);
__raw_writel(mask & ~bitval, S3C2410_INTMSK);
}
static struct irq_chip s3c2412_irq_eint0t4 = {
.irq_ack = s3c2412_irq_ack,
.irq_mask = s3c2412_irq_mask,
.irq_unmask = s3c2412_irq_unmask,
.irq_set_wake = s3c_irq_wake,
.irq_set_type = s3c_irqext_type,
};
#define INTBIT(x) (1 << ((x) - S3C2410_IRQSUB(0)))
/* CF and SDI sub interrupts */
static void s3c2412_irq_demux_cfsdi(unsigned int irq, struct irq_desc *desc)
{
unsigned int subsrc, submsk;
subsrc = __raw_readl(S3C2410_SUBSRCPND);
submsk = __raw_readl(S3C2410_INTSUBMSK);
subsrc &= ~submsk;
if (subsrc & INTBIT(IRQ_S3C2412_SDI))
generic_handle_irq(IRQ_S3C2412_SDI);
if (subsrc & INTBIT(IRQ_S3C2412_CF))
generic_handle_irq(IRQ_S3C2412_CF);
}
#define INTMSK_CFSDI (1UL << (IRQ_S3C2412_CFSDI - IRQ_EINT0))
#define SUBMSK_CFSDI INTMSK_SUB(IRQ_S3C2412_SDI, IRQ_S3C2412_CF)
static void s3c2412_irq_cfsdi_mask(struct irq_data *data)
{
s3c_irqsub_mask(data->irq, INTMSK_CFSDI, SUBMSK_CFSDI);
}
static void s3c2412_irq_cfsdi_unmask(struct irq_data *data)
{
s3c_irqsub_unmask(data->irq, INTMSK_CFSDI);
}
static void s3c2412_irq_cfsdi_ack(struct irq_data *data)
{
s3c_irqsub_maskack(data->irq, INTMSK_CFSDI, SUBMSK_CFSDI);
}
static struct irq_chip s3c2412_irq_cfsdi = {
.name = "s3c2412-cfsdi",
.irq_ack = s3c2412_irq_cfsdi_ack,
.irq_mask = s3c2412_irq_cfsdi_mask,
.irq_unmask = s3c2412_irq_cfsdi_unmask,
};
static int s3c2412_irq_add(struct device *dev, struct subsys_interface *sif)
{
unsigned int irqno;
for (irqno = IRQ_EINT0; irqno <= IRQ_EINT3; irqno++) {
irq_set_chip_and_handler(irqno, &s3c2412_irq_eint0t4,
handle_edge_irq);
set_irq_flags(irqno, IRQF_VALID);
}
/* add demux support for CF/SDI */
irq_set_chained_handler(IRQ_S3C2412_CFSDI, s3c2412_irq_demux_cfsdi);
for (irqno = IRQ_S3C2412_SDI; irqno <= IRQ_S3C2412_CF; irqno++) {
irq_set_chip_and_handler(irqno, &s3c2412_irq_cfsdi,
handle_level_irq);
set_irq_flags(irqno, IRQF_VALID);
}
return 0;
}
static struct subsys_interface s3c2412_irq_interface = {
.name = "s3c2412_irq",
.subsys = &s3c2412_subsys,
.add_dev = s3c2412_irq_add,
};
static int s3c2412_irq_init(void)
{
return subsys_interface_register(&s3c2412_irq_interface);
}
arch_initcall(s3c2412_irq_init);
#endif
#ifdef CONFIG_CPU_S3C2416
static struct s3c_irq_data init_s3c2416base[32] = {
{ .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
......
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