diff options
| -rw-r--r-- | arch/arm/mach-s5pc100/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-s5pc100/gpiolib.c | 45 | ||||
| -rw-r--r-- | arch/arm/mach-s5pc100/include/mach/irqs.h | 9 | ||||
| -rw-r--r-- | arch/arm/mach-s5pc100/irq-gpio.c | 266 |
4 files changed, 17 insertions, 305 deletions
diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile index a021ed1..eecab57 100644 --- a/arch/arm/mach-s5pc100/Makefile +++ b/arch/arm/mach-s5pc100/Makefile @@ -11,7 +11,7 @@ obj- := # Core support for S5PC100 system -obj-$(CONFIG_CPU_S5PC100) += cpu.o init.o clock.o gpiolib.o irq-gpio.o +obj-$(CONFIG_CPU_S5PC100) += cpu.o init.o clock.o gpiolib.o obj-$(CONFIG_CPU_S5PC100) += setup-i2c0.o obj-$(CONFIG_CPU_S5PC100) += dma.o diff --git a/arch/arm/mach-s5pc100/gpiolib.c b/arch/arm/mach-s5pc100/gpiolib.c index 0fab7f2..5811578 100644 --- a/arch/arm/mach-s5pc100/gpiolib.c +++ b/arch/arm/mach-s5pc100/gpiolib.c @@ -61,11 +61,6 @@ * L3 8 4Bit None */ -static int s5pc100_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset) -{ - return S3C_IRQ_GPIO(chip->base + offset); -} - static int s5pc100_gpiolib_to_eint(struct gpio_chip *chip, unsigned int offset) { int base; @@ -232,6 +227,7 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = { .base = S5PC100_GPH0(0), .ngpio = S5PC100_GPIO_H0_NR, .label = "GPH0", + .to_irq = s5pc100_gpiolib_to_eint, }, }, { .base = S5PC100_GPH1_BASE, @@ -240,6 +236,7 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = { .base = S5PC100_GPH1(0), .ngpio = S5PC100_GPIO_H1_NR, .label = "GPH1", + .to_irq = s5pc100_gpiolib_to_eint, }, }, { .base = S5PC100_GPH2_BASE, @@ -248,6 +245,7 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = { .base = S5PC100_GPH2(0), .ngpio = S5PC100_GPIO_H2_NR, .label = "GPH2", + .to_irq = s5pc100_gpiolib_to_eint, }, }, { .base = S5PC100_GPH3_BASE, @@ -256,6 +254,7 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = { .base = S5PC100_GPH3(0), .ngpio = S5PC100_GPIO_H3_NR, .label = "GPH3", + .to_irq = s5pc100_gpiolib_to_eint, }, }, { .base = S5PC100_GPI_BASE, @@ -380,47 +379,25 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = { }, }; -/* FIXME move from irq-gpio.c */ -extern struct irq_chip s5pc100_gpioint; -extern void s5pc100_irq_gpioint_handler(unsigned int irq, struct irq_desc *desc); - -static __init void s5pc100_gpiolib_link(struct s3c_gpio_chip *chip) -{ - /* Interrupt */ - if (chip->config == &gpio_cfg) { - int i, irq; - - chip->chip.to_irq = s5pc100_gpiolib_to_irq; - - for (i = 0; i < chip->chip.ngpio; i++) { - irq = S3C_IRQ_GPIO_BASE + chip->chip.base + i; - set_irq_chip(irq, &s5pc100_gpioint); - set_irq_data(irq, &chip->chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, IRQF_VALID); - } - } else if (chip->config == &gpio_cfg_eint) { - chip->chip.to_irq = s5pc100_gpiolib_to_eint; - } -} - static __init int s5pc100_gpiolib_init(void) { struct s3c_gpio_chip *chip; int nr_chips; + int gpioint_group = 0; chip = s5pc100_gpio_chips; nr_chips = ARRAY_SIZE(s5pc100_gpio_chips); - for (; nr_chips > 0; nr_chips--, chip++) - s5pc100_gpiolib_link(chip); + for (; nr_chips > 0; nr_chips--, chip++) { + if (chip->config == &gpio_cfg) { + /* gpio interrupts */ + chip->group = gpioint_group++; + } + } samsung_gpiolib_add_4bit_chips(s5pc100_gpio_chips, ARRAY_SIZE(s5pc100_gpio_chips)); - /* Interrupt */ - set_irq_chained_handler(IRQ_GPIOINT, s5pc100_irq_gpioint_handler); - return 0; } core_initcall(s5pc100_gpiolib_init); diff --git a/arch/arm/mach-s5pc100/include/mach/irqs.h b/arch/arm/mach-s5pc100/include/mach/irqs.h index 06513e6..e782dd6 100644 --- a/arch/arm/mach-s5pc100/include/mach/irqs.h +++ b/arch/arm/mach-s5pc100/include/mach/irqs.h @@ -100,11 +100,12 @@ #define S5P_EINT_BASE1 (S5P_IRQ_VIC0(0)) #define S5P_EINT_BASE2 (IRQ_VIC_END + 1) -#define S3C_IRQ_GPIO_BASE (IRQ_EINT(31) + 1) -#define S3C_IRQ_GPIO(x) (S3C_IRQ_GPIO_BASE + (x)) +/* GPIO interrupt */ +#define S5P_GPIOINT_BASE (IRQ_EINT(31) + 1) +#define S5P_GPIOINT_GROUP_MAXNR 21 -/* Until MP04 Groups -> 40 (exactly 39) Groups * 8 ~= 320 GPIOs */ -#define NR_IRQS (S3C_IRQ_GPIO(320) + 1) +/* Set the default NR_IRQS */ +#define NR_IRQS (IRQ_EINT(31) + S5P_GPIOINT_COUNT + 1) /* Compatibility */ #define IRQ_LCD_FIFO IRQ_LCD0 diff --git a/arch/arm/mach-s5pc100/irq-gpio.c b/arch/arm/mach-s5pc100/irq-gpio.c deleted file mode 100644 index 2bf86c1..0000000 --- a/arch/arm/mach-s5pc100/irq-gpio.c +++ /dev/null @@ -1,266 +0,0 @@ -/* - * arch/arm/mach-s5pc100/irq-gpio.c - * - * Copyright (C) 2009 Samsung Electronics - * - * S5PC100 - Interrupt handling for IRQ_GPIO${group}(x) - * - * 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/gpio.h> - -#include <mach/map.h> -#include <plat/gpio-cfg.h> - -#define S5P_GPIOREG(x) (S5P_VA_GPIO + (x)) - -#define CON_OFFSET 0x700 -#define MASK_OFFSET 0x900 -#define PEND_OFFSET 0xA00 -#define CON_OFFSET_2 0xE00 -#define MASK_OFFSET_2 0xF00 -#define PEND_OFFSET_2 0xF40 - -#define GPIOINT_LEVEL_LOW 0x0 -#define GPIOINT_LEVEL_HIGH 0x1 -#define GPIOINT_EDGE_FALLING 0x2 -#define GPIOINT_EDGE_RISING 0x3 -#define GPIOINT_EDGE_BOTH 0x4 - -static int group_to_con_offset(int group) -{ - return group << 2; -} - -static int group_to_mask_offset(int group) -{ - return group << 2; -} - -static int group_to_pend_offset(int group) -{ - return group << 2; -} - -static int s5pc100_get_start(unsigned int group) -{ - switch (group) { - case 0: return S5PC100_GPIO_A0_START; - case 1: return S5PC100_GPIO_A1_START; - case 2: return S5PC100_GPIO_B_START; - case 3: return S5PC100_GPIO_C_START; - case 4: return S5PC100_GPIO_D_START; - case 5: return S5PC100_GPIO_E0_START; - case 6: return S5PC100_GPIO_E1_START; - case 7: return S5PC100_GPIO_F0_START; - case 8: return S5PC100_GPIO_F1_START; - case 9: return S5PC100_GPIO_F2_START; - case 10: return S5PC100_GPIO_F3_START; - case 11: return S5PC100_GPIO_G0_START; - case 12: return S5PC100_GPIO_G1_START; - case 13: return S5PC100_GPIO_G2_START; - case 14: return S5PC100_GPIO_G3_START; - case 15: return S5PC100_GPIO_I_START; - case 16: return S5PC100_GPIO_J0_START; - case 17: return S5PC100_GPIO_J1_START; - case 18: return S5PC100_GPIO_J2_START; - case 19: return S5PC100_GPIO_J3_START; - case 20: return S5PC100_GPIO_J4_START; - default: - BUG(); - } - - return -EINVAL; -} - -static int s5pc100_get_group(unsigned int irq) -{ - irq -= S3C_IRQ_GPIO(0); - - switch (irq) { - case S5PC100_GPIO_A0_START ... S5PC100_GPIO_A1_START - 1: - return 0; - case S5PC100_GPIO_A1_START ... S5PC100_GPIO_B_START - 1: - return 1; - case S5PC100_GPIO_B_START ... S5PC100_GPIO_C_START - 1: - return 2; - case S5PC100_GPIO_C_START ... S5PC100_GPIO_D_START - 1: - return 3; - case S5PC100_GPIO_D_START ... S5PC100_GPIO_E0_START - 1: - return 4; - case S5PC100_GPIO_E0_START ... S5PC100_GPIO_E1_START - 1: - return 5; - case S5PC100_GPIO_E1_START ... S5PC100_GPIO_F0_START - 1: - return 6; - case S5PC100_GPIO_F0_START ... S5PC100_GPIO_F1_START - 1: - return 7; - case S5PC100_GPIO_F1_START ... S5PC100_GPIO_F2_START - 1: - return 8; - case S5PC100_GPIO_F2_START ... S5PC100_GPIO_F3_START - 1: - return 9; - case S5PC100_GPIO_F3_START ... S5PC100_GPIO_G0_START - 1: - return 10; - case S5PC100_GPIO_G0_START ... S5PC100_GPIO_G1_START - 1: - return 11; - case S5PC100_GPIO_G1_START ... S5PC100_GPIO_G2_START - 1: - return 12; - case S5PC100_GPIO_G2_START ... S5PC100_GPIO_G3_START - 1: - return 13; - case S5PC100_GPIO_G3_START ... S5PC100_GPIO_H0_START - 1: - return 14; - case S5PC100_GPIO_I_START ... S5PC100_GPIO_J0_START - 1: - return 15; - case S5PC100_GPIO_J0_START ... S5PC100_GPIO_J1_START - 1: - return 16; - case S5PC100_GPIO_J1_START ... S5PC100_GPIO_J2_START - 1: - return 17; - case S5PC100_GPIO_J2_START ... S5PC100_GPIO_J3_START - 1: - return 18; - case S5PC100_GPIO_J3_START ... S5PC100_GPIO_J4_START - 1: - return 19; - case S5PC100_GPIO_J4_START ... S5PC100_GPIO_K0_START - 1: - return 20; - default: - BUG(); - } - - return -EINVAL; -} - -static int s5pc100_get_offset(unsigned int irq) -{ - struct gpio_chip *chip = get_irq_data(irq); - return irq - S3C_IRQ_GPIO(chip->base); -} - -static void s5pc100_gpioint_ack(unsigned int irq) -{ - int group, offset, pend_offset; - unsigned int value; - - group = s5pc100_get_group(irq); - offset = s5pc100_get_offset(irq); - pend_offset = group_to_pend_offset(group); - - value = __raw_readl(S5P_GPIOREG(PEND_OFFSET) + pend_offset); - value |= 1 << offset; - __raw_writel(value, S5P_GPIOREG(PEND_OFFSET) + pend_offset); -} - -static void s5pc100_gpioint_mask(unsigned int irq) -{ - int group, offset, mask_offset; - unsigned int value; - - group = s5pc100_get_group(irq); - offset = s5pc100_get_offset(irq); - mask_offset = group_to_mask_offset(group); - - value = __raw_readl(S5P_GPIOREG(MASK_OFFSET) + mask_offset); - value |= 1 << offset; - __raw_writel(value, S5P_GPIOREG(MASK_OFFSET) + mask_offset); -} - -static void s5pc100_gpioint_unmask(unsigned int irq) -{ - int group, offset, mask_offset; - unsigned int value; - - group = s5pc100_get_group(irq); - offset = s5pc100_get_offset(irq); - mask_offset = group_to_mask_offset(group); - - value = __raw_readl(S5P_GPIOREG(MASK_OFFSET) + mask_offset); - value &= ~(1 << offset); - __raw_writel(value, S5P_GPIOREG(MASK_OFFSET) + mask_offset); -} - -static void s5pc100_gpioint_mask_ack(unsigned int irq) -{ - s5pc100_gpioint_mask(irq); - s5pc100_gpioint_ack(irq); -} - -static int s5pc100_gpioint_set_type(unsigned int irq, unsigned int type) -{ - int group, offset, con_offset; - unsigned int value; - - group = s5pc100_get_group(irq); - offset = s5pc100_get_offset(irq); - con_offset = group_to_con_offset(group); - - switch (type) { - case IRQ_TYPE_NONE: - printk(KERN_WARNING "No irq type\n"); - return -EINVAL; - case IRQ_TYPE_EDGE_RISING: - type = GPIOINT_EDGE_RISING; - break; - case IRQ_TYPE_EDGE_FALLING: - type = GPIOINT_EDGE_FALLING; - break; - case IRQ_TYPE_EDGE_BOTH: - type = GPIOINT_EDGE_BOTH; - break; - case IRQ_TYPE_LEVEL_HIGH: - type = GPIOINT_LEVEL_HIGH; - break; - case IRQ_TYPE_LEVEL_LOW: - type = GPIOINT_LEVEL_LOW; - break; - default: - BUG(); - } - - - value = __raw_readl(S5P_GPIOREG(CON_OFFSET) + con_offset); - value &= ~(0xf << (offset * 0x4)); - value |= (type << (offset * 0x4)); - __raw_writel(value, S5P_GPIOREG(CON_OFFSET) + con_offset); - - return 0; -} - -struct irq_chip s5pc100_gpioint = { - .name = "GPIO", - .ack = s5pc100_gpioint_ack, - .mask = s5pc100_gpioint_mask, - .mask_ack = s5pc100_gpioint_mask_ack, - .unmask = s5pc100_gpioint_unmask, - .set_type = s5pc100_gpioint_set_type, -}; - -void s5pc100_irq_gpioint_handler(unsigned int irq, struct irq_desc *desc) -{ - int group, offset, pend_offset, mask_offset; - int real_irq, group_end; - unsigned int pend, mask; - - group_end = 21; - - for (group = 0; group < group_end; group++) { - pend_offset = group_to_pend_offset(group); - pend = __raw_readl(S5P_GPIOREG(PEND_OFFSET) + pend_offset); - if (!pend) - continue; - - mask_offset = group_to_mask_offset(group); - mask = __raw_readl(S5P_GPIOREG(MASK_OFFSET) + mask_offset); - pend &= ~mask; - - for (offset = 0; offset < 8; offset++) { - if (pend & (1 << offset)) { - real_irq = s5pc100_get_start(group) + offset; - generic_handle_irq(S3C_IRQ_GPIO(real_irq)); - } - } - } -} |