ARM: S3C24XX: move s3c2412 irq init to common code

Base for further cleanups

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

3 files changed, 155 insertions, 193 deletions

diff --git a/arch/arm/mach-s3c24xx/Makefile b/arch/arm/mach-s3c24xx/Makefile
index 90412607fb47..be6e4d0e6f1a 100644
--- a/arch/arm/mach-s3c24xx/Makefile
+++ b/arch/arm/mach-s3c24xx/Makefile
@@ -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
diff --git a/arch/arm/mach-s3c24xx/irq-s3c2412.c b/arch/arm/mach-s3c24xx/irq-s3c2412.c
deleted file mode 100644
index e6fd954c5fd4..000000000000
--- a/arch/arm/mach-s3c24xx/irq-s3c2412.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/* 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);
diff --git a/arch/arm/mach-s3c24xx/irq.c b/arch/arm/mach-s3c24xx/irq.c
index ddb6752e5948..2bb4a97e527e 100644
--- a/arch/arm/mach-s3c24xx/irq.c
+++ b/arch/arm/mach-s3c24xx/irq.c
@@ -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 */