From 2286cf467e460eabfd0a188c5c5fb46955dcf024 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 12 Feb 2013 09:59:24 -0800 Subject: [PATCH] ARM: S3C24XX: move s3c2440 irqs to common irq code Will be integrated in the following patch. Signed-off-by: Heiko Stuebner Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c24xx/Makefile | 2 +- arch/arm/mach-s3c24xx/irq-s3c2440.c | 128 ---------------------------- arch/arm/mach-s3c24xx/irq.c | 88 +++++++++++++++++++ 3 files changed, 89 insertions(+), 129 deletions(-) delete mode 100644 arch/arm/mach-s3c24xx/irq-s3c2440.c diff --git a/arch/arm/mach-s3c24xx/Makefile b/arch/arm/mach-s3c24xx/Makefile index 051b8f99d2fd..90412607fb47 100644 --- a/arch/arm/mach-s3c24xx/Makefile +++ b/arch/arm/mach-s3c24xx/Makefile @@ -31,7 +31,7 @@ obj-$(CONFIG_S3C2412_PM_SLEEP) += sleep-s3c2412.o obj-$(CONFIG_CPU_S3C2416) += s3c2416.o clock-s3c2416.o obj-$(CONFIG_S3C2416_PM) += pm-s3c2416.o -obj-$(CONFIG_CPU_S3C2440) += s3c2440.o irq-s3c2440.o clock-s3c2440.o +obj-$(CONFIG_CPU_S3C2440) += s3c2440.o clock-s3c2440.o obj-$(CONFIG_CPU_S3C2442) += s3c2442.o obj-$(CONFIG_CPU_S3C244X) += s3c244x.o clock-s3c244x.o obj-$(CONFIG_S3C2440_CPUFREQ) += cpufreq-s3c2440.o diff --git a/arch/arm/mach-s3c24xx/irq-s3c2440.c b/arch/arm/mach-s3c24xx/irq-s3c2440.c deleted file mode 100644 index 4a18cde439cc..000000000000 --- a/arch/arm/mach-s3c24xx/irq-s3c2440.c +++ /dev/null @@ -1,128 +0,0 @@ -/* linux/arch/arm/mach-s3c2440/irq.c - * - * Copyright (c) 2003-2004 Simtec Electronics - * Ben Dooks - * - * 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 -#include -#include -#include -#include -#include - -#include -#include - -#include - -#include -#include - -#include -#include -#include - -/* WDT/AC97 */ - -static void s3c_irq_demux_wdtac97(unsigned int irq, - struct irq_desc *desc) -{ - unsigned int subsrc, submsk; - - /* read the current pending interrupts, and the mask - * for what it is available */ - - subsrc = __raw_readl(S3C2410_SUBSRCPND); - submsk = __raw_readl(S3C2410_INTSUBMSK); - - subsrc &= ~submsk; - subsrc >>= 13; - subsrc &= 3; - - if (subsrc != 0) { - if (subsrc & 1) { - generic_handle_irq(IRQ_S3C2440_WDT); - } - if (subsrc & 2) { - generic_handle_irq(IRQ_S3C2440_AC97); - } - } -} - - -#define INTMSK_WDT (1UL << (IRQ_WDT - IRQ_EINT0)) - -static void -s3c_irq_wdtac97_mask(struct irq_data *data) -{ - s3c_irqsub_mask(data->irq, INTMSK_WDT, 3 << 13); -} - -static void -s3c_irq_wdtac97_unmask(struct irq_data *data) -{ - s3c_irqsub_unmask(data->irq, INTMSK_WDT); -} - -static void -s3c_irq_wdtac97_ack(struct irq_data *data) -{ - s3c_irqsub_maskack(data->irq, INTMSK_WDT, 3 << 13); -} - -static struct irq_chip s3c_irq_wdtac97 = { - .irq_mask = s3c_irq_wdtac97_mask, - .irq_unmask = s3c_irq_wdtac97_unmask, - .irq_ack = s3c_irq_wdtac97_ack, -}; - -static int s3c2440_irq_add(struct device *dev, struct subsys_interface *sif) -{ - unsigned int irqno; - - printk("S3C2440: IRQ Support\n"); - - /* add new chained handler for wdt, ac7 */ - - irq_set_chip_and_handler(IRQ_WDT, &s3c_irq_level_chip, - handle_level_irq); - irq_set_chained_handler(IRQ_WDT, s3c_irq_demux_wdtac97); - - for (irqno = IRQ_S3C2440_WDT; irqno <= IRQ_S3C2440_AC97; irqno++) { - irq_set_chip_and_handler(irqno, &s3c_irq_wdtac97, - handle_level_irq); - set_irq_flags(irqno, IRQF_VALID); - } - - return 0; -} - -static struct subsys_interface s3c2440_irq_interface = { - .name = "s3c2440_irq", - .subsys = &s3c2440_subsys, - .add_dev = s3c2440_irq_add, -}; - -static int s3c2440_irq_init(void) -{ - return subsys_interface_register(&s3c2440_irq_interface); -} - -arch_initcall(s3c2440_irq_init); - diff --git a/arch/arm/mach-s3c24xx/irq.c b/arch/arm/mach-s3c24xx/irq.c index 2c59b2d99a81..1804e23baad3 100644 --- a/arch/arm/mach-s3c24xx/irq.c +++ b/arch/arm/mach-s3c24xx/irq.c @@ -784,6 +784,94 @@ static struct irq_chip s3c_irq_cam = { }; #ifdef CONFIG_CPU_S3C2440 +/* WDT/AC97 */ + +static void s3c_irq_demux_wdtac97(unsigned int irq, + struct irq_desc *desc) +{ + unsigned int subsrc, submsk; + + /* read the current pending interrupts, and the mask + * for what it is available */ + + subsrc = __raw_readl(S3C2410_SUBSRCPND); + submsk = __raw_readl(S3C2410_INTSUBMSK); + + subsrc &= ~submsk; + subsrc >>= 13; + subsrc &= 3; + + if (subsrc != 0) { + if (subsrc & 1) { + generic_handle_irq(IRQ_S3C2440_WDT); + } + if (subsrc & 2) { + generic_handle_irq(IRQ_S3C2440_AC97); + } + } +} + + +#define INTMSK_WDT (1UL << (IRQ_WDT - IRQ_EINT0)) + +static void +s3c_irq_wdtac97_mask(struct irq_data *data) +{ + s3c_irqsub_mask(data->irq, INTMSK_WDT, 3 << 13); +} + +static void +s3c_irq_wdtac97_unmask(struct irq_data *data) +{ + s3c_irqsub_unmask(data->irq, INTMSK_WDT); +} + +static void +s3c_irq_wdtac97_ack(struct irq_data *data) +{ + s3c_irqsub_maskack(data->irq, INTMSK_WDT, 3 << 13); +} + +static struct irq_chip s3c_irq_wdtac97 = { + .irq_mask = s3c_irq_wdtac97_mask, + .irq_unmask = s3c_irq_wdtac97_unmask, + .irq_ack = s3c_irq_wdtac97_ack, +}; + +static int s3c2440_irq_add(struct device *dev, struct subsys_interface *sif) +{ + unsigned int irqno; + + printk("S3C2440: IRQ Support\n"); + + /* add new chained handler for wdt, ac7 */ + + irq_set_chip_and_handler(IRQ_WDT, &s3c_irq_level_chip, + handle_level_irq); + irq_set_chained_handler(IRQ_WDT, s3c_irq_demux_wdtac97); + + for (irqno = IRQ_S3C2440_WDT; irqno <= IRQ_S3C2440_AC97; irqno++) { + irq_set_chip_and_handler(irqno, &s3c_irq_wdtac97, + handle_level_irq); + set_irq_flags(irqno, IRQF_VALID); + } + + return 0; +} + +static struct subsys_interface s3c2440_irq_interface = { + .name = "s3c2440_irq", + .subsys = &s3c2440_subsys, + .add_dev = s3c2440_irq_add, +}; + +static int s3c2440_irq_init(void) +{ + return subsys_interface_register(&s3c2440_irq_interface); +} + +arch_initcall(s3c2440_irq_init); + void __init s3c2440_init_irq(void) { unsigned int irqno; -- 2.20.1