diff options
author | Kukjin Kim <kgene.kim@samsung.com> | 2012-04-15 21:40:33 -0700 |
---|---|---|
committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-05-13 07:01:27 +0900 |
commit | 68ae89984710d2e9f3cf2005539c8f91bcce9d40 (patch) | |
tree | 5d3e95e215522bdc6f8293d29166b88370dd893c /arch/arm/plat-s5p | |
parent | bf46aaeacf728dad9d89ed3d604bf991035dfd77 (diff) |
ARM: SAMSUNG: move interrupt part for common s5p into plat-samsung
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-s5p')
-rw-r--r-- | arch/arm/plat-s5p/Kconfig | 11 | ||||
-rw-r--r-- | arch/arm/plat-s5p/Makefile | 3 | ||||
-rw-r--r-- | arch/arm/plat-s5p/irq-eint.c | 219 | ||||
-rw-r--r-- | arch/arm/plat-s5p/irq-gpioint.c | 216 | ||||
-rw-r--r-- | arch/arm/plat-s5p/irq.c | 36 |
5 files changed, 0 insertions, 485 deletions
diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig index 2c1193c5992..efff0a30da4 100644 --- a/arch/arm/plat-s5p/Kconfig +++ b/arch/arm/plat-s5p/Kconfig @@ -23,17 +23,6 @@ config PLAT_S5P help Base platform code for Samsung's S5P series SoC. -config S5P_EXT_INT - bool - help - Use the external interrupts (other than GPIO interrupts.) - Note: Do not choose this for S5P6440 and S5P6450. - -config S5P_GPIO_INT - bool - help - Common code for the GPIO interrupts (other than external interrupts.) - config S5P_HRT bool select SAMSUNG_DEV_PWM diff --git a/arch/arm/plat-s5p/Makefile b/arch/arm/plat-s5p/Makefile index 83152108af3..8701c3c36d6 100644 --- a/arch/arm/plat-s5p/Makefile +++ b/arch/arm/plat-s5p/Makefile @@ -12,9 +12,6 @@ obj- := # Core files -obj-y += irq.o -obj-$(CONFIG_S5P_EXT_INT) += irq-eint.o -obj-$(CONFIG_S5P_GPIO_INT) += irq-gpioint.o obj-$(CONFIG_S5P_PM) += pm.o irq-pm.o obj-$(CONFIG_S5P_SLEEP) += sleep.o obj-$(CONFIG_S5P_HRT) += s5p-time.o diff --git a/arch/arm/plat-s5p/irq-eint.c b/arch/arm/plat-s5p/irq-eint.c deleted file mode 100644 index 139c050918c..00000000000 --- a/arch/arm/plat-s5p/irq-eint.c +++ /dev/null @@ -1,219 +0,0 @@ -/* linux/arch/arm/plat-s5p/irq-eint.c - * - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * S5P - IRQ EINT support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/io.h> -#include <linux/device.h> -#include <linux/gpio.h> - -#include <asm/hardware/vic.h> - -#include <plat/regs-irqtype.h> - -#include <mach/map.h> -#include <plat/cpu.h> -#include <plat/pm.h> - -#include <plat/gpio-cfg.h> -#include <mach/regs-gpio.h> - -static inline void s5p_irq_eint_mask(struct irq_data *data) -{ - u32 mask; - - mask = __raw_readl(S5P_EINT_MASK(EINT_REG_NR(data->irq))); - mask |= eint_irq_to_bit(data->irq); - __raw_writel(mask, S5P_EINT_MASK(EINT_REG_NR(data->irq))); -} - -static void s5p_irq_eint_unmask(struct irq_data *data) -{ - u32 mask; - - mask = __raw_readl(S5P_EINT_MASK(EINT_REG_NR(data->irq))); - mask &= ~(eint_irq_to_bit(data->irq)); - __raw_writel(mask, S5P_EINT_MASK(EINT_REG_NR(data->irq))); -} - -static inline void s5p_irq_eint_ack(struct irq_data *data) -{ - __raw_writel(eint_irq_to_bit(data->irq), - S5P_EINT_PEND(EINT_REG_NR(data->irq))); -} - -static void s5p_irq_eint_maskack(struct irq_data *data) -{ - /* compiler should in-line these */ - s5p_irq_eint_mask(data); - s5p_irq_eint_ack(data); -} - -static int s5p_irq_eint_set_type(struct irq_data *data, unsigned int type) -{ - int offs = EINT_OFFSET(data->irq); - int shift; - u32 ctrl, mask; - u32 newvalue = 0; - - switch (type) { - case IRQ_TYPE_EDGE_RISING: - newvalue = S5P_IRQ_TYPE_EDGE_RISING; - break; - - case IRQ_TYPE_EDGE_FALLING: - newvalue = S5P_IRQ_TYPE_EDGE_FALLING; - break; - - case IRQ_TYPE_EDGE_BOTH: - newvalue = S5P_IRQ_TYPE_EDGE_BOTH; - break; - - case IRQ_TYPE_LEVEL_LOW: - newvalue = S5P_IRQ_TYPE_LEVEL_LOW; - break; - - case IRQ_TYPE_LEVEL_HIGH: - newvalue = S5P_IRQ_TYPE_LEVEL_HIGH; - break; - - default: - printk(KERN_ERR "No such irq type %d", type); - return -EINVAL; - } - - shift = (offs & 0x7) * 4; - mask = 0x7 << shift; - - ctrl = __raw_readl(S5P_EINT_CON(EINT_REG_NR(data->irq))); - ctrl &= ~mask; - ctrl |= newvalue << shift; - __raw_writel(ctrl, S5P_EINT_CON(EINT_REG_NR(data->irq))); - - if ((0 <= offs) && (offs < 8)) - s3c_gpio_cfgpin(EINT_GPIO_0(offs & 0x7), EINT_MODE); - - else if ((8 <= offs) && (offs < 16)) - s3c_gpio_cfgpin(EINT_GPIO_1(offs & 0x7), EINT_MODE); - - else if ((16 <= offs) && (offs < 24)) - s3c_gpio_cfgpin(EINT_GPIO_2(offs & 0x7), EINT_MODE); - - else if ((24 <= offs) && (offs < 32)) - s3c_gpio_cfgpin(EINT_GPIO_3(offs & 0x7), EINT_MODE); - - else - printk(KERN_ERR "No such irq number %d", offs); - - return 0; -} - -static struct irq_chip s5p_irq_eint = { - .name = "s5p-eint", - .irq_mask = s5p_irq_eint_mask, - .irq_unmask = s5p_irq_eint_unmask, - .irq_mask_ack = s5p_irq_eint_maskack, - .irq_ack = s5p_irq_eint_ack, - .irq_set_type = s5p_irq_eint_set_type, -#ifdef CONFIG_PM - .irq_set_wake = s3c_irqext_wake, -#endif -}; - -/* s5p_irq_demux_eint - * - * This function demuxes the IRQ from the group0 external interrupts, - * from EINTs 16 to 31. It is designed to be inlined into the specific - * handler s5p_irq_demux_eintX_Y. - * - * Each EINT pend/mask registers handle eight of them. - */ -static inline void s5p_irq_demux_eint(unsigned int start) -{ - u32 status = __raw_readl(S5P_EINT_PEND(EINT_REG_NR(start))); - u32 mask = __raw_readl(S5P_EINT_MASK(EINT_REG_NR(start))); - unsigned int irq; - - status &= ~mask; - status &= 0xff; - - while (status) { - irq = fls(status) - 1; - generic_handle_irq(irq + start); - status &= ~(1 << irq); - } -} - -static void s5p_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc) -{ - s5p_irq_demux_eint(IRQ_EINT(16)); - s5p_irq_demux_eint(IRQ_EINT(24)); -} - -static inline void s5p_irq_vic_eint_mask(struct irq_data *data) -{ - void __iomem *base = irq_data_get_irq_chip_data(data); - - s5p_irq_eint_mask(data); - writel(1 << EINT_OFFSET(data->irq), base + VIC_INT_ENABLE_CLEAR); -} - -static void s5p_irq_vic_eint_unmask(struct irq_data *data) -{ - void __iomem *base = irq_data_get_irq_chip_data(data); - - s5p_irq_eint_unmask(data); - writel(1 << EINT_OFFSET(data->irq), base + VIC_INT_ENABLE); -} - -static inline void s5p_irq_vic_eint_ack(struct irq_data *data) -{ - __raw_writel(eint_irq_to_bit(data->irq), - S5P_EINT_PEND(EINT_REG_NR(data->irq))); -} - -static void s5p_irq_vic_eint_maskack(struct irq_data *data) -{ - s5p_irq_vic_eint_mask(data); - s5p_irq_vic_eint_ack(data); -} - -static struct irq_chip s5p_irq_vic_eint = { - .name = "s5p_vic_eint", - .irq_mask = s5p_irq_vic_eint_mask, - .irq_unmask = s5p_irq_vic_eint_unmask, - .irq_mask_ack = s5p_irq_vic_eint_maskack, - .irq_ack = s5p_irq_vic_eint_ack, - .irq_set_type = s5p_irq_eint_set_type, -#ifdef CONFIG_PM - .irq_set_wake = s3c_irqext_wake, -#endif -}; - -static int __init s5p_init_irq_eint(void) -{ - int irq; - - for (irq = IRQ_EINT(0); irq <= IRQ_EINT(15); irq++) - irq_set_chip(irq, &s5p_irq_vic_eint); - - for (irq = IRQ_EINT(16); irq <= IRQ_EINT(31); irq++) { - irq_set_chip_and_handler(irq, &s5p_irq_eint, handle_level_irq); - set_irq_flags(irq, IRQF_VALID); - } - - irq_set_chained_handler(IRQ_EINT16_31, s5p_irq_demux_eint16_31); - return 0; -} - -arch_initcall(s5p_init_irq_eint); diff --git a/arch/arm/plat-s5p/irq-gpioint.c b/arch/arm/plat-s5p/irq-gpioint.c deleted file mode 100644 index 82c7311017a..00000000000 --- a/arch/arm/plat-s5p/irq-gpioint.c +++ /dev/null @@ -1,216 +0,0 @@ -/* linux/arch/arm/plat-s5p/irq-gpioint.c - * - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - * Author: Kyungmin Park <kyungmin.park@samsung.com> - * Author: Joonyoung Shim <jy0922.shim@samsung.com> - * Author: Marek Szyprowski <m.szyprowski@samsung.com> - * - * 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. - * - */ - -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/io.h> -#include <linux/gpio.h> -#include <linux/slab.h> - -#include <mach/map.h> -#include <plat/gpio-core.h> -#include <plat/gpio-cfg.h> - -#include <asm/mach/irq.h> - -#define GPIO_BASE(chip) (((unsigned long)(chip)->base) & 0xFFFFF000u) - -#define CON_OFFSET 0x700 -#define MASK_OFFSET 0x900 -#define PEND_OFFSET 0xA00 -#define REG_OFFSET(x) ((x) << 2) - -struct s5p_gpioint_bank { - struct list_head list; - int start; - int nr_groups; - int irq; - struct samsung_gpio_chip **chips; - void (*handler)(unsigned int, struct irq_desc *); -}; - -static LIST_HEAD(banks); - -static int s5p_gpioint_set_type(struct irq_data *d, unsigned int type) -{ - struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); - struct irq_chip_type *ct = gc->chip_types; - unsigned int shift = (d->irq - gc->irq_base) << 2; - - switch (type) { - case IRQ_TYPE_EDGE_RISING: - type = S5P_IRQ_TYPE_EDGE_RISING; - break; - case IRQ_TYPE_EDGE_FALLING: - type = S5P_IRQ_TYPE_EDGE_FALLING; - break; - case IRQ_TYPE_EDGE_BOTH: - type = S5P_IRQ_TYPE_EDGE_BOTH; - break; - case IRQ_TYPE_LEVEL_HIGH: - type = S5P_IRQ_TYPE_LEVEL_HIGH; - break; - case IRQ_TYPE_LEVEL_LOW: - type = S5P_IRQ_TYPE_LEVEL_LOW; - break; - case IRQ_TYPE_NONE: - default: - printk(KERN_WARNING "No irq type\n"); - return -EINVAL; - } - - gc->type_cache &= ~(0x7 << shift); - gc->type_cache |= type << shift; - writel(gc->type_cache, gc->reg_base + ct->regs.type); - return 0; -} - -static void s5p_gpioint_handler(unsigned int irq, struct irq_desc *desc) -{ - struct s5p_gpioint_bank *bank = irq_get_handler_data(irq); - int group, pend_offset, mask_offset; - unsigned int pend, mask; - - struct irq_chip *chip = irq_get_chip(irq); - chained_irq_enter(chip, desc); - - for (group = 0; group < bank->nr_groups; group++) { - struct samsung_gpio_chip *chip = bank->chips[group]; - if (!chip) - continue; - - pend_offset = REG_OFFSET(group); - pend = __raw_readl(GPIO_BASE(chip) + PEND_OFFSET + pend_offset); - if (!pend) - continue; - - mask_offset = REG_OFFSET(group); - mask = __raw_readl(GPIO_BASE(chip) + MASK_OFFSET + mask_offset); - pend &= ~mask; - - while (pend) { - int offset = fls(pend) - 1; - int real_irq = chip->irq_base + offset; - generic_handle_irq(real_irq); - pend &= ~BIT(offset); - } - } - chained_irq_exit(chip, desc); -} - -static __init int s5p_gpioint_add(struct samsung_gpio_chip *chip) -{ - static int used_gpioint_groups = 0; - int group = chip->group; - struct s5p_gpioint_bank *b, *bank = NULL; - struct irq_chip_generic *gc; - struct irq_chip_type *ct; - - if (used_gpioint_groups >= S5P_GPIOINT_GROUP_COUNT) - return -ENOMEM; - - list_for_each_entry(b, &banks, list) { - if (group >= b->start && group < b->start + b->nr_groups) { - bank = b; - break; - } - } - if (!bank) - return -EINVAL; - - if (!bank->handler) { - bank->chips = kzalloc(sizeof(struct samsung_gpio_chip *) * - bank->nr_groups, GFP_KERNEL); - if (!bank->chips) - return -ENOMEM; - - irq_set_chained_handler(bank->irq, s5p_gpioint_handler); - irq_set_handler_data(bank->irq, bank); - bank->handler = s5p_gpioint_handler; - printk(KERN_INFO "Registered chained gpio int handler for interrupt %d.\n", - bank->irq); - } - - /* - * chained GPIO irq has been successfully registered, allocate new gpio - * int group and assign irq nubmers - */ - chip->irq_base = S5P_GPIOINT_BASE + - used_gpioint_groups * S5P_GPIOINT_GROUP_SIZE; - used_gpioint_groups++; - - bank->chips[group - bank->start] = chip; - - gc = irq_alloc_generic_chip("s5p_gpioint", 1, chip->irq_base, - (void __iomem *)GPIO_BASE(chip), - handle_level_irq); - if (!gc) - return -ENOMEM; - ct = gc->chip_types; - ct->chip.irq_ack = irq_gc_ack_set_bit; - ct->chip.irq_mask = irq_gc_mask_set_bit; - ct->chip.irq_unmask = irq_gc_mask_clr_bit; - ct->chip.irq_set_type = s5p_gpioint_set_type, - ct->regs.ack = PEND_OFFSET + REG_OFFSET(group - bank->start); - ct->regs.mask = MASK_OFFSET + REG_OFFSET(group - bank->start); - ct->regs.type = CON_OFFSET + REG_OFFSET(group - bank->start); - irq_setup_generic_chip(gc, IRQ_MSK(chip->chip.ngpio), - IRQ_GC_INIT_MASK_CACHE, - IRQ_NOREQUEST | IRQ_NOPROBE, 0); - return 0; -} - -int __init s5p_register_gpio_interrupt(int pin) -{ - struct samsung_gpio_chip *my_chip = samsung_gpiolib_getchip(pin); - int offset, group; - int ret; - - if (!my_chip) - return -EINVAL; - - offset = pin - my_chip->chip.base; - group = my_chip->group; - - /* check if the group has been already registered */ - if (my_chip->irq_base) - return my_chip->irq_base + offset; - - /* register gpio group */ - ret = s5p_gpioint_add(my_chip); - if (ret == 0) { - my_chip->chip.to_irq = samsung_gpiolib_to_irq; - printk(KERN_INFO "Registered interrupt support for gpio group %d.\n", - group); - return my_chip->irq_base + offset; - } - return ret; -} - -int __init s5p_register_gpioint_bank(int chain_irq, int start, int nr_groups) -{ - struct s5p_gpioint_bank *bank; - - bank = kzalloc(sizeof(*bank), GFP_KERNEL); - if (!bank) - return -ENOMEM; - - bank->start = start; - bank->nr_groups = nr_groups; - bank->irq = chain_irq; - - list_add_tail(&bank->list, &banks); - return 0; -} diff --git a/arch/arm/plat-s5p/irq.c b/arch/arm/plat-s5p/irq.c deleted file mode 100644 index afdaa1082b9..00000000000 --- a/arch/arm/plat-s5p/irq.c +++ /dev/null @@ -1,36 +0,0 @@ -/* arch/arm/plat-s5p/irq.c - * - * Copyright (c) 2009 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * S5P - Interrupt handling - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/io.h> - -#include <asm/hardware/vic.h> - -#include <mach/map.h> -#include <plat/regs-timer.h> -#include <plat/cpu.h> -#include <plat/irq-vic-timer.h> - -void __init s5p_init_irq(u32 *vic, u32 num_vic) -{ -#ifdef CONFIG_ARM_VIC - int irq; - - /* initialize the VICs */ - for (irq = 0; irq < num_vic; irq++) - vic_init(VA_VIC(irq), VIC_BASE(irq), vic[irq], 0); -#endif - - s3c_init_vic_timer_irq(5, IRQ_TIMER0); -} |