ARM: S3C24XX: move s3c2412 irq init to common code
authorHeiko Stuebner <heiko@sntech.de>
Tue, 12 Feb 2013 18:09:13 +0000 (10:09 -0800)
committerKukjin Kim <kgene.kim@samsung.com>
Tue, 5 Mar 2013 11:21:04 +0000 (20:21 +0900)
Base for further cleanups

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
arch/arm/mach-s3c24xx/Makefile
arch/arm/mach-s3c24xx/irq-s3c2412.c [deleted file]
arch/arm/mach-s3c24xx/irq.c

index 90412607fb4774e9d214e5ed0dbfb76b78df24f3..be6e4d0e6f1aa6acdfe4abbac1cd5f4d851c8a28 100644 (file)
@@ -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 (file)
index e6fd954..0000000
+++ /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);
index ddb6752e59489e71cba43319f01aa598093f66d1..2bb4a97e527efc9ba096f16616323e4148866f39 100644 (file)
@@ -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 */