--- /dev/null
+Samsung S3C24XX Interrupt Controllers
+
+The S3C24XX SoCs contain a custom set of interrupt controllers providing a
+varying number of interrupt sources. The set consists of a main- and sub-
+controller and on newer SoCs even a second main controller.
+
+Required properties:
+- compatible: Compatible property value should be "samsung,s3c2410-irq"
+ for machines before s3c2416 and "samsung,s3c2416-irq" for s3c2416 and later.
+
+- reg: Physical base address of the controller and length of memory mapped
+ region.
+
+- interrupt-controller : Identifies the node as an interrupt controller
+
+- #interrupt-cells : Specifies the number of cells needed to encode an
+ interrupt source. The value shall be 4 and interrupt descriptor shall
+ have the following format:
+ <ctrl_num parent_irq ctrl_irq type>
+
+ ctrl_num contains the controller to use:
+ - 0 ... main controller
+ - 1 ... sub controller
+ - 2 ... second main controller on s3c2416 and s3c2450
+ parent_irq contains the parent bit in the main controller and will be
+ ignored in main controllers
+ ctrl_irq contains the interrupt bit of the controller
+ type contains the trigger type to use
+
+Example:
+
+ interrupt-controller@4a000000 {
+ compatible = "samsung,s3c2410-irq";
+ reg = <0x4a000000 0x100>;
+ interrupt-controller;
+ #interrupt-cells=<4>;
+ };
+
+ [...]
+
+ serial@50000000 {
+ compatible = "samsung,s3c2410-uart";
+ reg = <0x50000000 0x4000>;
+ interrupt-parent = <&subintc>;
+ interrupts = <1 28 0 4>, <1 28 1 4>;
+ };
+
+ rtc@57000000 {
+ compatible = "samsung,s3c2410-rtc";
+ reg = <0x57000000 0x100>;
+ interrupt-parent = <&intc>;
+ interrupts = <0 30 0 3>, <0 8 0 3>;
+ };
select HAVE_S3C2410_I2C if I2C
select HAVE_S3C2410_WATCHDOG if WATCHDOG
select HAVE_S3C_RTC if RTC_CLASS
+ select MULTI_IRQ_HANDLER
select NEED_MACH_GPIO_H
select NEED_MACH_IO_H
help
# core
-obj-y += common.o irq.o
+obj-y += common.o
obj-$(CONFIG_CPU_S3C2410) += s3c2410.o
obj-$(CONFIG_S3C2410_CPUFREQ) += cpufreq-s3c2410.o
extern void s3c2410_init_uarts(struct s3c2410_uartcfg *cfg, int no);
extern void s3c2410_init_clocks(int xtal);
extern void s3c2410_restart(char mode, const char *cmd);
+extern void s3c2410_init_irq(void);
#else
#define s3c2410_init_clocks NULL
#define s3c2410_init_uarts NULL
+++ /dev/null
-/*
- * arch/arm/mach-s3c2410/include/mach/entry-macro.S
- *
- * Low-level IRQ helper macros for S3C2410-based platforms
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
-*/
-
-/* We have a problem that the INTOFFSET register does not always
- * show one interrupt. Occasionally we get two interrupts through
- * the prioritiser, and this causes the INTOFFSET register to show
- * what looks like the logical-or of the two interrupt numbers.
- *
- * Thanks to Klaus, Shannon, et al for helping to debug this problem
-*/
-
-#define INTPND (0x10)
-#define INTOFFSET (0x14)
-
-#include <mach/hardware.h>
-#include <asm/irq.h>
-
- .macro get_irqnr_preamble, base, tmp
- .endm
-
- .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
-
- mov \base, #S3C24XX_VA_IRQ
-
- @@ try the interrupt offset register, since it is there
-
- ldr \irqstat, [\base, #INTPND ]
- teq \irqstat, #0
- beq 1002f
- ldr \irqnr, [\base, #INTOFFSET ]
- mov \tmp, #1
- tst \irqstat, \tmp, lsl \irqnr
- bne 1001f
-
- @@ the number specified is not a valid irq, so try
- @@ and work it out for ourselves
-
- mov \irqnr, #0 @@ start here
-
- @@ work out which irq (if any) we got
-
- movs \tmp, \irqstat, lsl#16
- addeq \irqnr, \irqnr, #16
- moveq \irqstat, \irqstat, lsr#16
- tst \irqstat, #0xff
- addeq \irqnr, \irqnr, #8
- moveq \irqstat, \irqstat, lsr#8
- tst \irqstat, #0xf
- addeq \irqnr, \irqnr, #4
- moveq \irqstat, \irqstat, lsr#4
- tst \irqstat, #0x3
- addeq \irqnr, \irqnr, #2
- moveq \irqstat, \irqstat, lsr#2
- tst \irqstat, #0x1
- addeq \irqnr, \irqnr, #1
-
- @@ we have the value
-1001:
- adds \irqnr, \irqnr, #IRQ_EINT0
-1002:
- @@ exit here, Z flag unset if IRQ
-
- .endm
+++ /dev/null
-/*
- * S3C24XX IRQ handling
- *
- * Copyright (c) 2003-2004 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- * Copyright (c) 2012 Heiko Stuebner <heiko@sntech.de>
- *
- * 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.
-*/
-
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/io.h>
-#include <linux/err.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/device.h>
-#include <linux/irqdomain.h>
-
-#include <asm/mach/irq.h>
-
-#include <mach/regs-irq.h>
-#include <mach/regs-gpio.h>
-
-#include <plat/cpu.h>
-#include <plat/regs-irqtype.h>
-#include <plat/pm.h>
-
-#define S3C_IRQTYPE_NONE 0
-#define S3C_IRQTYPE_EINT 1
-#define S3C_IRQTYPE_EDGE 2
-#define S3C_IRQTYPE_LEVEL 3
-
-struct s3c_irq_data {
- unsigned int type;
- unsigned long parent_irq;
-
- /* data gets filled during init */
- struct s3c_irq_intc *intc;
- unsigned long sub_bits;
- struct s3c_irq_intc *sub_intc;
-};
-
-/*
- * Sructure holding the controller data
- * @reg_pending register holding pending irqs
- * @reg_intpnd special register intpnd in main intc
- * @reg_mask mask register
- * @domain irq_domain of the controller
- * @parent parent controller for ext and sub irqs
- * @irqs irq-data, always s3c_irq_data[32]
- */
-struct s3c_irq_intc {
- void __iomem *reg_pending;
- void __iomem *reg_intpnd;
- void __iomem *reg_mask;
- struct irq_domain *domain;
- struct s3c_irq_intc *parent;
- struct s3c_irq_data *irqs;
-};
-
-static void s3c_irq_mask(struct irq_data *data)
-{
- struct s3c_irq_intc *intc = data->domain->host_data;
- struct s3c_irq_intc *parent_intc = intc->parent;
- struct s3c_irq_data *irq_data = &intc->irqs[data->hwirq];
- struct s3c_irq_data *parent_data;
- unsigned long mask;
- unsigned int irqno;
-
- mask = __raw_readl(intc->reg_mask);
- mask |= (1UL << data->hwirq);
- __raw_writel(mask, intc->reg_mask);
-
- if (parent_intc && irq_data->parent_irq) {
- parent_data = &parent_intc->irqs[irq_data->parent_irq];
-
- /* check to see if we need to mask the parent IRQ */
- if ((mask & parent_data->sub_bits) == parent_data->sub_bits) {
- irqno = irq_find_mapping(parent_intc->domain,
- irq_data->parent_irq);
- s3c_irq_mask(irq_get_irq_data(irqno));
- }
- }
-}
-
-static void s3c_irq_unmask(struct irq_data *data)
-{
- struct s3c_irq_intc *intc = data->domain->host_data;
- struct s3c_irq_intc *parent_intc = intc->parent;
- struct s3c_irq_data *irq_data = &intc->irqs[data->hwirq];
- unsigned long mask;
- unsigned int irqno;
-
- mask = __raw_readl(intc->reg_mask);
- mask &= ~(1UL << data->hwirq);
- __raw_writel(mask, intc->reg_mask);
-
- if (parent_intc && irq_data->parent_irq) {
- irqno = irq_find_mapping(parent_intc->domain,
- irq_data->parent_irq);
- s3c_irq_unmask(irq_get_irq_data(irqno));
- }
-}
-
-static inline void s3c_irq_ack(struct irq_data *data)
-{
- struct s3c_irq_intc *intc = data->domain->host_data;
- unsigned long bitval = 1UL << data->hwirq;
-
- __raw_writel(bitval, intc->reg_pending);
- if (intc->reg_intpnd)
- __raw_writel(bitval, intc->reg_intpnd);
-}
-
-static int s3c_irqext_type_set(void __iomem *gpcon_reg,
- void __iomem *extint_reg,
- unsigned long gpcon_offset,
- unsigned long extint_offset,
- unsigned int type)
-{
- unsigned long newvalue = 0, value;
-
- /* Set the GPIO to external interrupt mode */
- value = __raw_readl(gpcon_reg);
- value = (value & ~(3 << gpcon_offset)) | (0x02 << gpcon_offset);
- __raw_writel(value, gpcon_reg);
-
- /* Set the external interrupt to pointed trigger type */
- switch (type)
- {
- case IRQ_TYPE_NONE:
- pr_warn("No edge setting!\n");
- break;
-
- case IRQ_TYPE_EDGE_RISING:
- newvalue = S3C2410_EXTINT_RISEEDGE;
- break;
-
- case IRQ_TYPE_EDGE_FALLING:
- newvalue = S3C2410_EXTINT_FALLEDGE;
- break;
-
- case IRQ_TYPE_EDGE_BOTH:
- newvalue = S3C2410_EXTINT_BOTHEDGE;
- break;
-
- case IRQ_TYPE_LEVEL_LOW:
- newvalue = S3C2410_EXTINT_LOWLEV;
- break;
-
- case IRQ_TYPE_LEVEL_HIGH:
- newvalue = S3C2410_EXTINT_HILEV;
- break;
-
- default:
- pr_err("No such irq type %d", type);
- return -EINVAL;
- }
-
- value = __raw_readl(extint_reg);
- value = (value & ~(7 << extint_offset)) | (newvalue << extint_offset);
- __raw_writel(value, extint_reg);
-
- return 0;
-}
-
-static int s3c_irqext_type(struct irq_data *data, unsigned int type)
-{
- void __iomem *extint_reg;
- void __iomem *gpcon_reg;
- unsigned long gpcon_offset, extint_offset;
-
- if ((data->hwirq >= 4) && (data->hwirq <= 7)) {
- gpcon_reg = S3C2410_GPFCON;
- extint_reg = S3C24XX_EXTINT0;
- gpcon_offset = (data->hwirq) * 2;
- extint_offset = (data->hwirq) * 4;
- } else if ((data->hwirq >= 8) && (data->hwirq <= 15)) {
- gpcon_reg = S3C2410_GPGCON;
- extint_reg = S3C24XX_EXTINT1;
- gpcon_offset = (data->hwirq - 8) * 2;
- extint_offset = (data->hwirq - 8) * 4;
- } else if ((data->hwirq >= 16) && (data->hwirq <= 23)) {
- gpcon_reg = S3C2410_GPGCON;
- extint_reg = S3C24XX_EXTINT2;
- gpcon_offset = (data->hwirq - 8) * 2;
- extint_offset = (data->hwirq - 16) * 4;
- } else {
- return -EINVAL;
- }
-
- return s3c_irqext_type_set(gpcon_reg, extint_reg, gpcon_offset,
- extint_offset, type);
-}
-
-static int s3c_irqext0_type(struct irq_data *data, unsigned int type)
-{
- void __iomem *extint_reg;
- void __iomem *gpcon_reg;
- unsigned long gpcon_offset, extint_offset;
-
- if ((data->hwirq >= 0) && (data->hwirq <= 3)) {
- gpcon_reg = S3C2410_GPFCON;
- extint_reg = S3C24XX_EXTINT0;
- gpcon_offset = (data->hwirq) * 2;
- extint_offset = (data->hwirq) * 4;
- } else {
- return -EINVAL;
- }
-
- return s3c_irqext_type_set(gpcon_reg, extint_reg, gpcon_offset,
- extint_offset, type);
-}
-
-static struct irq_chip s3c_irq_chip = {
- .name = "s3c",
- .irq_ack = s3c_irq_ack,
- .irq_mask = s3c_irq_mask,
- .irq_unmask = s3c_irq_unmask,
- .irq_set_wake = s3c_irq_wake
-};
-
-static struct irq_chip s3c_irq_level_chip = {
- .name = "s3c-level",
- .irq_mask = s3c_irq_mask,
- .irq_unmask = s3c_irq_unmask,
- .irq_ack = s3c_irq_ack,
-};
-
-static struct irq_chip s3c_irqext_chip = {
- .name = "s3c-ext",
- .irq_mask = s3c_irq_mask,
- .irq_unmask = s3c_irq_unmask,
- .irq_ack = s3c_irq_ack,
- .irq_set_type = s3c_irqext_type,
- .irq_set_wake = s3c_irqext_wake
-};
-
-static struct irq_chip s3c_irq_eint0t4 = {
- .name = "s3c-ext0",
- .irq_ack = s3c_irq_ack,
- .irq_mask = s3c_irq_mask,
- .irq_unmask = s3c_irq_unmask,
- .irq_set_wake = s3c_irq_wake,
- .irq_set_type = s3c_irqext0_type,
-};
-
-static void s3c_irq_demux(unsigned int irq, struct irq_desc *desc)
-{
- struct irq_chip *chip = irq_desc_get_chip(desc);
- struct s3c_irq_intc *intc = desc->irq_data.domain->host_data;
- struct s3c_irq_data *irq_data = &intc->irqs[desc->irq_data.hwirq];
- struct s3c_irq_intc *sub_intc = irq_data->sub_intc;
- unsigned long src;
- unsigned long msk;
- unsigned int n;
-
- chained_irq_enter(chip, desc);
-
- src = __raw_readl(sub_intc->reg_pending);
- msk = __raw_readl(sub_intc->reg_mask);
-
- src &= ~msk;
- src &= irq_data->sub_bits;
-
- while (src) {
- n = __ffs(src);
- src &= ~(1 << n);
- generic_handle_irq(irq_find_mapping(sub_intc->domain, n));
- }
-
- chained_irq_exit(chip, desc);
-}
-
-#ifdef CONFIG_FIQ
-/**
- * s3c24xx_set_fiq - set the FIQ routing
- * @irq: IRQ number to route to FIQ on processor.
- * @on: Whether to route @irq to the FIQ, or to remove the FIQ routing.
- *
- * Change the state of the IRQ to FIQ routing depending on @irq and @on. If
- * @on is true, the @irq is checked to see if it can be routed and the
- * interrupt controller updated to route the IRQ. If @on is false, the FIQ
- * routing is cleared, regardless of which @irq is specified.
- */
-int s3c24xx_set_fiq(unsigned int irq, bool on)
-{
- u32 intmod;
- unsigned offs;
-
- if (on) {
- offs = irq - FIQ_START;
- if (offs > 31)
- return -EINVAL;
-
- intmod = 1 << offs;
- } else {
- intmod = 0;
- }
-
- __raw_writel(intmod, S3C2410_INTMOD);
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(s3c24xx_set_fiq);
-#endif
-
-static int s3c24xx_irq_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hw)
-{
- struct s3c_irq_intc *intc = h->host_data;
- struct s3c_irq_data *irq_data = &intc->irqs[hw];
- struct s3c_irq_intc *parent_intc;
- struct s3c_irq_data *parent_irq_data;
- unsigned int irqno;
-
- if (!intc) {
- pr_err("irq-s3c24xx: no controller found for hwirq %lu\n", hw);
- return -EINVAL;
- }
-
- if (!irq_data) {
- pr_err("irq-s3c24xx: no irq data found for hwirq %lu\n", hw);
- return -EINVAL;
- }
-
- /* attach controller pointer to irq_data */
- irq_data->intc = intc;
-
- /* set handler and flags */
- switch (irq_data->type) {
- case S3C_IRQTYPE_NONE:
- return 0;
- case S3C_IRQTYPE_EINT:
- /* On the S3C2412, the EINT0to3 have a parent irq
- * but need the s3c_irq_eint0t4 chip
- */
- if (irq_data->parent_irq && (!soc_is_s3c2412() || hw >= 4))
- irq_set_chip_and_handler(virq, &s3c_irqext_chip,
- handle_edge_irq);
- else
- irq_set_chip_and_handler(virq, &s3c_irq_eint0t4,
- handle_edge_irq);
- break;
- case S3C_IRQTYPE_EDGE:
- if (irq_data->parent_irq ||
- intc->reg_pending == S3C2416_SRCPND2)
- irq_set_chip_and_handler(virq, &s3c_irq_level_chip,
- handle_edge_irq);
- else
- irq_set_chip_and_handler(virq, &s3c_irq_chip,
- handle_edge_irq);
- break;
- case S3C_IRQTYPE_LEVEL:
- if (irq_data->parent_irq)
- irq_set_chip_and_handler(virq, &s3c_irq_level_chip,
- handle_level_irq);
- else
- irq_set_chip_and_handler(virq, &s3c_irq_chip,
- handle_level_irq);
- break;
- default:
- pr_err("irq-s3c24xx: unsupported irqtype %d\n", irq_data->type);
- return -EINVAL;
- }
- set_irq_flags(virq, IRQF_VALID);
-
- if (irq_data->parent_irq) {
- parent_intc = intc->parent;
- if (!parent_intc) {
- pr_err("irq-s3c24xx: no parent controller found for hwirq %lu\n",
- hw);
- goto err;
- }
-
- parent_irq_data = &parent_intc->irqs[irq_data->parent_irq];
- if (!irq_data) {
- pr_err("irq-s3c24xx: no irq data found for hwirq %lu\n",
- hw);
- goto err;
- }
-
- parent_irq_data->sub_intc = intc;
- parent_irq_data->sub_bits |= (1UL << hw);
-
- /* attach the demuxer to the parent irq */
- irqno = irq_find_mapping(parent_intc->domain,
- irq_data->parent_irq);
- if (!irqno) {
- pr_err("irq-s3c24xx: could not find mapping for parent irq %lu\n",
- irq_data->parent_irq);
- goto err;
- }
- irq_set_chained_handler(irqno, s3c_irq_demux);
- }
-
- return 0;
-
-err:
- set_irq_flags(virq, 0);
-
- /* the only error can result from bad mapping data*/
- return -EINVAL;
-}
-
-static struct irq_domain_ops s3c24xx_irq_ops = {
- .map = s3c24xx_irq_map,
- .xlate = irq_domain_xlate_twocell,
-};
-
-static void s3c24xx_clear_intc(struct s3c_irq_intc *intc)
-{
- void __iomem *reg_source;
- unsigned long pend;
- unsigned long last;
- int i;
-
- /* if intpnd is set, read the next pending irq from there */
- reg_source = intc->reg_intpnd ? intc->reg_intpnd : intc->reg_pending;
-
- last = 0;
- for (i = 0; i < 4; i++) {
- pend = __raw_readl(reg_source);
-
- if (pend == 0 || pend == last)
- break;
-
- __raw_writel(pend, intc->reg_pending);
- if (intc->reg_intpnd)
- __raw_writel(pend, intc->reg_intpnd);
-
- pr_info("irq: clearing pending status %08x\n", (int)pend);
- last = pend;
- }
-}
-
-struct s3c_irq_intc *s3c24xx_init_intc(struct device_node *np,
- struct s3c_irq_data *irq_data,
- struct s3c_irq_intc *parent,
- unsigned long address)
-{
- struct s3c_irq_intc *intc;
- void __iomem *base = (void *)0xf6000000; /* static mapping */
- int irq_num;
- int irq_start;
- int ret;
-
- intc = kzalloc(sizeof(struct s3c_irq_intc), GFP_KERNEL);
- if (!intc)
- return ERR_PTR(-ENOMEM);
-
- intc->irqs = irq_data;
-
- if (parent)
- intc->parent = parent;
-
- /* select the correct data for the controller.
- * Need to hard code the irq num start and offset
- * to preserve the static mapping for now
- */
- switch (address) {
- case 0x4a000000:
- pr_debug("irq: found main intc\n");
- intc->reg_pending = base;
- intc->reg_mask = base + 0x08;
- intc->reg_intpnd = base + 0x10;
- irq_num = 32;
- irq_start = S3C2410_IRQ(0);
- break;
- case 0x4a000018:
- pr_debug("irq: found subintc\n");
- intc->reg_pending = base + 0x18;
- intc->reg_mask = base + 0x1c;
- irq_num = 29;
- irq_start = S3C2410_IRQSUB(0);
- break;
- case 0x4a000040:
- pr_debug("irq: found intc2\n");
- intc->reg_pending = base + 0x40;
- intc->reg_mask = base + 0x48;
- intc->reg_intpnd = base + 0x50;
- irq_num = 8;
- irq_start = S3C2416_IRQ(0);
- break;
- case 0x560000a4:
- pr_debug("irq: found eintc\n");
- base = (void *)0xfd000000;
-
- intc->reg_mask = base + 0xa4;
- intc->reg_pending = base + 0x08;
- irq_num = 24;
- irq_start = S3C2410_IRQ(32);
- break;
- default:
- pr_err("irq: unsupported controller address\n");
- ret = -EINVAL;
- goto err;
- }
-
- /* now that all the data is complete, init the irq-domain */
- s3c24xx_clear_intc(intc);
- intc->domain = irq_domain_add_legacy(np, irq_num, irq_start,
- 0, &s3c24xx_irq_ops,
- intc);
- if (!intc->domain) {
- pr_err("irq: could not create irq-domain\n");
- ret = -EINVAL;
- goto err;
- }
-
- return intc;
-
-err:
- kfree(intc);
- return ERR_PTR(ret);
-}
-
-/* s3c24xx_init_irq
- *
- * Initialise S3C2410 IRQ system
-*/
-
-static struct s3c_irq_data init_base[32] = {
- { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
- { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
- { .type = S3C_IRQTYPE_EDGE, }, /* WDT */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* LCD */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SDI */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
- { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
-};
-
-static struct s3c_irq_data init_eint[32] = {
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT4 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT5 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT6 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT7 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT8 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT9 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT10 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT11 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT12 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT13 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT14 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT15 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT16 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT17 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT18 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT19 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT20 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT21 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT22 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT23 */
-};
-
-static struct s3c_irq_data init_subint[32] = {
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
-};
-
-void __init s3c24xx_init_irq(void)
-{
- struct s3c_irq_intc *main_intc;
-
-#ifdef CONFIG_FIQ
- init_FIQ(FIQ_START);
-#endif
-
- main_intc = s3c24xx_init_intc(NULL, &init_base[0], NULL, 0x4a000000);
- if (IS_ERR(main_intc)) {
- pr_err("irq: could not create main interrupt controller\n");
- return;
- }
-
- s3c24xx_init_intc(NULL, &init_subint[0], main_intc, 0x4a000018);
- s3c24xx_init_intc(NULL, &init_eint[0], main_intc, 0x560000a4);
-}
-
-#ifdef CONFIG_CPU_S3C2412
-static struct s3c_irq_data init_s3c2412base[32] = {
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT0 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT1 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT2 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT3 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
- { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
- { .type = S3C_IRQTYPE_EDGE, }, /* WDT */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* LCD */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* SDI/CF */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
- { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
-};
-
-static struct s3c_irq_data init_s3c2412eint[32] = {
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 0 }, /* EINT0 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 1 }, /* EINT1 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 2 }, /* EINT2 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 3 }, /* EINT3 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT4 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT5 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT6 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT7 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT8 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT9 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT10 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT11 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT12 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT13 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT14 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT15 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT16 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT17 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT18 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT19 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT20 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT21 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT22 */
- { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT23 */
-};
-
-static struct s3c_irq_data init_s3c2412subint[32] = {
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
- { .type = S3C_IRQTYPE_NONE, },
- { .type = S3C_IRQTYPE_NONE, },
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 21 }, /* SDI */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 21 }, /* CF */
-};
-
-void s3c2412_init_irq(void)
-{
- struct s3c_irq_intc *main_intc;
-
- pr_info("S3C2412: IRQ Support\n");
-
-#ifdef CONFIG_FIQ
- init_FIQ(FIQ_START);
-#endif
-
- main_intc = s3c24xx_init_intc(NULL, &init_s3c2412base[0], NULL, 0x4a000000);
- if (IS_ERR(main_intc)) {
- pr_err("irq: could not create main interrupt controller\n");
- return;
- }
-
- s3c24xx_init_intc(NULL, &init_s3c2412eint[0], main_intc, 0x560000a4);
- s3c24xx_init_intc(NULL, &init_s3c2412subint[0], main_intc, 0x4a000018);
-}
-#endif
-
-#ifdef CONFIG_CPU_S3C2416
-static struct s3c_irq_data init_s3c2416base[32] = {
- { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
- { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
- { .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* LCD */
- { .type = S3C_IRQTYPE_LEVEL, }, /* DMA */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART3 */
- { .type = S3C_IRQTYPE_NONE, }, /* reserved */
- { .type = S3C_IRQTYPE_EDGE, }, /* SDI1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SDI0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* NAND */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
- { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
- { .type = S3C_IRQTYPE_NONE, },
- { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
-};
-
-static struct s3c_irq_data init_s3c2416subint[32] = {
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
- { .type = S3C_IRQTYPE_NONE }, /* reserved */
- { .type = S3C_IRQTYPE_NONE }, /* reserved */
- { .type = S3C_IRQTYPE_NONE }, /* reserved */
- { .type = S3C_IRQTYPE_NONE }, /* reserved */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD2 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD3 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD4 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA0 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA1 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA2 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA3 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA4 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA5 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */
-};
-
-static struct s3c_irq_data init_s3c2416_second[32] = {
- { .type = S3C_IRQTYPE_EDGE }, /* 2D */
- { .type = S3C_IRQTYPE_EDGE }, /* IIC1 */
- { .type = S3C_IRQTYPE_NONE }, /* reserved */
- { .type = S3C_IRQTYPE_NONE }, /* reserved */
- { .type = S3C_IRQTYPE_EDGE }, /* PCM0 */
- { .type = S3C_IRQTYPE_EDGE }, /* PCM1 */
- { .type = S3C_IRQTYPE_EDGE }, /* I2S0 */
- { .type = S3C_IRQTYPE_EDGE }, /* I2S1 */
-};
-
-void __init s3c2416_init_irq(void)
-{
- struct s3c_irq_intc *main_intc;
-
- pr_info("S3C2416: IRQ Support\n");
-
-#ifdef CONFIG_FIQ
- init_FIQ(FIQ_START);
-#endif
-
- main_intc = s3c24xx_init_intc(NULL, &init_s3c2416base[0], NULL, 0x4a000000);
- if (IS_ERR(main_intc)) {
- pr_err("irq: could not create main interrupt controller\n");
- return;
- }
-
- s3c24xx_init_intc(NULL, &init_eint[0], main_intc, 0x560000a4);
- s3c24xx_init_intc(NULL, &init_s3c2416subint[0], main_intc, 0x4a000018);
-
- s3c24xx_init_intc(NULL, &init_s3c2416_second[0], NULL, 0x4a000040);
-}
-
-#endif
-
-#ifdef CONFIG_CPU_S3C2440
-static struct s3c_irq_data init_s3c2440base[32] = {
- { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* CAM */
- { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
- { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
- { .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* LCD */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SDI */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* NFCON */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
- { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
-};
-
-static struct s3c_irq_data init_s3c2440subint[32] = {
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* TC */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* ADC */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */
-};
-
-void __init s3c2440_init_irq(void)
-{
- struct s3c_irq_intc *main_intc;
-
- pr_info("S3C2440: IRQ Support\n");
-
-#ifdef CONFIG_FIQ
- init_FIQ(FIQ_START);
-#endif
-
- main_intc = s3c24xx_init_intc(NULL, &init_s3c2440base[0], NULL, 0x4a000000);
- if (IS_ERR(main_intc)) {
- pr_err("irq: could not create main interrupt controller\n");
- return;
- }
-
- s3c24xx_init_intc(NULL, &init_eint[0], main_intc, 0x560000a4);
- s3c24xx_init_intc(NULL, &init_s3c2440subint[0], main_intc, 0x4a000018);
-}
-#endif
-
-#ifdef CONFIG_CPU_S3C2442
-static struct s3c_irq_data init_s3c2442base[32] = {
- { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* CAM */
- { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
- { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
- { .type = S3C_IRQTYPE_EDGE, }, /* WDT */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* LCD */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SDI */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* NFCON */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
- { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
-};
-
-static struct s3c_irq_data init_s3c2442subint[32] = {
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* TC */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* ADC */
-};
-
-void __init s3c2442_init_irq(void)
-{
- struct s3c_irq_intc *main_intc;
-
- pr_info("S3C2442: IRQ Support\n");
-
-#ifdef CONFIG_FIQ
- init_FIQ(FIQ_START);
-#endif
-
- main_intc = s3c24xx_init_intc(NULL, &init_s3c2442base[0], NULL, 0x4a000000);
- if (IS_ERR(main_intc)) {
- pr_err("irq: could not create main interrupt controller\n");
- return;
- }
-
- s3c24xx_init_intc(NULL, &init_eint[0], main_intc, 0x560000a4);
- s3c24xx_init_intc(NULL, &init_s3c2442subint[0], main_intc, 0x4a000018);
-}
-#endif
-
-#ifdef CONFIG_CPU_S3C2443
-static struct s3c_irq_data init_s3c2443base[32] = {
- { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
- { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* CAM */
- { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
- { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
- { .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* LCD */
- { .type = S3C_IRQTYPE_LEVEL, }, /* DMA */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART3 */
- { .type = S3C_IRQTYPE_EDGE, }, /* CFON */
- { .type = S3C_IRQTYPE_EDGE, }, /* SDI1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SDI0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* NAND */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
- { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
- { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
- { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
- { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
- { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
-};
-
-
-static struct s3c_irq_data init_s3c2443subint[32] = {
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
- { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_C */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_P */
- { .type = S3C_IRQTYPE_NONE }, /* reserved */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD1 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD2 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD3 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD4 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA0 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA1 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA2 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA3 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA4 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA5 */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-RX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-TX */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-ERR */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */
- { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */
-};
-
-void __init s3c2443_init_irq(void)
-{
- struct s3c_irq_intc *main_intc;
-
- pr_info("S3C2443: IRQ Support\n");
-
-#ifdef CONFIG_FIQ
- init_FIQ(FIQ_START);
-#endif
-
- main_intc = s3c24xx_init_intc(NULL, &init_s3c2443base[0], NULL, 0x4a000000);
- if (IS_ERR(main_intc)) {
- pr_err("irq: could not create main interrupt controller\n");
- return;
- }
-
- s3c24xx_init_intc(NULL, &init_eint[0], main_intc, 0x560000a4);
- s3c24xx_init_intc(NULL, &init_s3c2443subint[0], main_intc, 0x4a000018);
-}
-#endif
MACHINE_START(AML_M5900, "AML_M5900")
.atag_offset = 0x100,
.map_io = amlm5900_map_io,
- .init_irq = s3c24xx_init_irq,
+ .init_irq = s3c2410_init_irq,
.init_machine = amlm5900_init,
.init_time = samsung_timer_init,
.restart = s3c2410_restart,
/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
.atag_offset = 0x100,
.map_io = bast_map_io,
- .init_irq = s3c24xx_init_irq,
+ .init_irq = s3c2410_init_irq,
.init_machine = bast_init,
.init_time = samsung_timer_init,
.restart = s3c2410_restart,
memblock_reserve(0x30081000, 0x1000);
}
-static void __init h1940_init_irq(void)
-{
- s3c24xx_init_irq();
-}
-
static void __init h1940_init(void)
{
u32 tmp;
.atag_offset = 0x100,
.map_io = h1940_map_io,
.reserve = h1940_reserve,
- .init_irq = h1940_init_irq,
+ .init_irq = s3c2410_init_irq,
.init_machine = h1940_init,
.init_time = samsung_timer_init,
.restart = s3c2410_restart,
.atag_offset = 0x100,
.init_time = samsung_timer_init,
.init_machine = n30_init,
- .init_irq = s3c24xx_init_irq,
+ .init_irq = s3c2410_init_irq,
.map_io = n30_map_io,
.restart = s3c2410_restart,
MACHINE_END
.atag_offset = 0x100,
.init_time = samsung_timer_init,
.init_machine = n30_init,
- .init_irq = s3c24xx_init_irq,
+ .init_irq = s3c2410_init_irq,
.map_io = n30_map_io,
.restart = s3c2410_restart,
MACHINE_END
.atag_offset = 0x100,
.map_io = otom11_map_io,
.init_machine = otom11_init,
- .init_irq = s3c24xx_init_irq,
+ .init_irq = s3c2410_init_irq,
.init_time = samsung_timer_init,
.restart = s3c2410_restart,
MACHINE_END
MACHINE_START(QT2410, "QT2410")
.atag_offset = 0x100,
.map_io = qt2410_map_io,
- .init_irq = s3c24xx_init_irq,
+ .init_irq = s3c2410_init_irq,
.init_machine = qt2410_machine_init,
.init_time = samsung_timer_init,
.restart = s3c2410_restart,
/* Maintainer: Jonas Dietsche */
.atag_offset = 0x100,
.map_io = smdk2410_map_io,
- .init_irq = s3c24xx_init_irq,
+ .init_irq = s3c2410_init_irq,
.init_machine = smdk2410_init,
.init_time = samsung_timer_init,
.restart = s3c2410_restart,
MACHINE_START(TCT_HAMMER, "TCT_HAMMER")
.atag_offset = 0x100,
.map_io = tct_hammer_map_io,
- .init_irq = s3c24xx_init_irq,
+ .init_irq = s3c2410_init_irq,
.init_machine = tct_hammer_init,
.init_time = samsung_timer_init,
.restart = s3c2410_restart,
.atag_offset = 0x100,
.map_io = vr1000_map_io,
.init_machine = vr1000_init,
- .init_irq = s3c24xx_init_irq,
+ .init_irq = s3c2410_init_irq,
.init_time = samsung_timer_init,
.restart = s3c2410_restart,
MACHINE_END
/* core initialisation functions */
-extern void s3c24xx_init_irq(void);
extern void s5p_init_irq(u32 *vic, u32 num_vic);
extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
obj-$(CONFIG_ARCH_EXYNOS) += exynos-combiner.o
+obj-$(CONFIG_ARCH_S3C24XX) += irq-s3c24xx.o
obj-$(CONFIG_METAG) += irq-metag-ext.o
obj-$(CONFIG_METAG_PERFCOUNTER_IRQS) += irq-metag.o
obj-$(CONFIG_ARCH_SUNXI) += irq-sunxi.o
--- /dev/null
+/*
+ * S3C24XX IRQ handling
+ *
+ * Copyright (c) 2003-2004 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ * Copyright (c) 2012 Heiko Stuebner <heiko@sntech.de>
+ *
+ * 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.
+*/
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+
+#include <asm/exception.h>
+#include <asm/mach/irq.h>
+
+#include <mach/regs-irq.h>
+#include <mach/regs-gpio.h>
+
+#include <plat/cpu.h>
+#include <plat/regs-irqtype.h>
+#include <plat/pm.h>
+
+#include "irqchip.h"
+
+#define S3C_IRQTYPE_NONE 0
+#define S3C_IRQTYPE_EINT 1
+#define S3C_IRQTYPE_EDGE 2
+#define S3C_IRQTYPE_LEVEL 3
+
+struct s3c_irq_data {
+ unsigned int type;
+ unsigned long offset;
+ unsigned long parent_irq;
+
+ /* data gets filled during init */
+ struct s3c_irq_intc *intc;
+ unsigned long sub_bits;
+ struct s3c_irq_intc *sub_intc;
+};
+
+/*
+ * Sructure holding the controller data
+ * @reg_pending register holding pending irqs
+ * @reg_intpnd special register intpnd in main intc
+ * @reg_mask mask register
+ * @domain irq_domain of the controller
+ * @parent parent controller for ext and sub irqs
+ * @irqs irq-data, always s3c_irq_data[32]
+ */
+struct s3c_irq_intc {
+ void __iomem *reg_pending;
+ void __iomem *reg_intpnd;
+ void __iomem *reg_mask;
+ struct irq_domain *domain;
+ struct s3c_irq_intc *parent;
+ struct s3c_irq_data *irqs;
+};
+
+/*
+ * Array holding pointers to the global controller structs
+ * [0] ... main_intc
+ * [1] ... sub_intc
+ * [2] ... main_intc2 on s3c2416
+ */
+static struct s3c_irq_intc *s3c_intc[3];
+
+static void s3c_irq_mask(struct irq_data *data)
+{
+ struct s3c_irq_data *irq_data = irq_data_get_irq_chip_data(data);
+ struct s3c_irq_intc *intc = irq_data->intc;
+ struct s3c_irq_intc *parent_intc = intc->parent;
+ struct s3c_irq_data *parent_data;
+ unsigned long mask;
+ unsigned int irqno;
+
+ mask = __raw_readl(intc->reg_mask);
+ mask |= (1UL << irq_data->offset);
+ __raw_writel(mask, intc->reg_mask);
+
+ if (parent_intc) {
+ parent_data = &parent_intc->irqs[irq_data->parent_irq];
+
+ /* check to see if we need to mask the parent IRQ
+ * The parent_irq is always in main_intc, so the hwirq
+ * for find_mapping does not need an offset in any case.
+ */
+ if ((mask & parent_data->sub_bits) == parent_data->sub_bits) {
+ irqno = irq_find_mapping(parent_intc->domain,
+ irq_data->parent_irq);
+ s3c_irq_mask(irq_get_irq_data(irqno));
+ }
+ }
+}
+
+static void s3c_irq_unmask(struct irq_data *data)
+{
+ struct s3c_irq_data *irq_data = irq_data_get_irq_chip_data(data);
+ struct s3c_irq_intc *intc = irq_data->intc;
+ struct s3c_irq_intc *parent_intc = intc->parent;
+ unsigned long mask;
+ unsigned int irqno;
+
+ mask = __raw_readl(intc->reg_mask);
+ mask &= ~(1UL << irq_data->offset);
+ __raw_writel(mask, intc->reg_mask);
+
+ if (parent_intc) {
+ irqno = irq_find_mapping(parent_intc->domain,
+ irq_data->parent_irq);
+ s3c_irq_unmask(irq_get_irq_data(irqno));
+ }
+}
+
+static inline void s3c_irq_ack(struct irq_data *data)
+{
+ struct s3c_irq_data *irq_data = irq_data_get_irq_chip_data(data);
+ struct s3c_irq_intc *intc = irq_data->intc;
+ unsigned long bitval = 1UL << irq_data->offset;
+
+ __raw_writel(bitval, intc->reg_pending);
+ if (intc->reg_intpnd)
+ __raw_writel(bitval, intc->reg_intpnd);
+}
+
+static int s3c_irq_type(struct irq_data *data, unsigned int type)
+{
+ switch (type) {
+ case IRQ_TYPE_NONE:
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ case IRQ_TYPE_EDGE_FALLING:
+ case IRQ_TYPE_EDGE_BOTH:
+ irq_set_handler(data->irq, handle_edge_irq);
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ case IRQ_TYPE_LEVEL_HIGH:
+ irq_set_handler(data->irq, handle_level_irq);
+ break;
+ default:
+ pr_err("No such irq type %d", type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int s3c_irqext_type_set(void __iomem *gpcon_reg,
+ void __iomem *extint_reg,
+ unsigned long gpcon_offset,
+ unsigned long extint_offset,
+ unsigned int type)
+{
+ unsigned long newvalue = 0, value;
+
+ /* Set the GPIO to external interrupt mode */
+ value = __raw_readl(gpcon_reg);
+ value = (value & ~(3 << gpcon_offset)) | (0x02 << gpcon_offset);
+ __raw_writel(value, gpcon_reg);
+
+ /* Set the external interrupt to pointed trigger type */
+ switch (type)
+ {
+ case IRQ_TYPE_NONE:
+ pr_warn("No edge setting!\n");
+ break;
+
+ case IRQ_TYPE_EDGE_RISING:
+ newvalue = S3C2410_EXTINT_RISEEDGE;
+ break;
+
+ case IRQ_TYPE_EDGE_FALLING:
+ newvalue = S3C2410_EXTINT_FALLEDGE;
+ break;
+
+ case IRQ_TYPE_EDGE_BOTH:
+ newvalue = S3C2410_EXTINT_BOTHEDGE;
+ break;
+
+ case IRQ_TYPE_LEVEL_LOW:
+ newvalue = S3C2410_EXTINT_LOWLEV;
+ break;
+
+ case IRQ_TYPE_LEVEL_HIGH:
+ newvalue = S3C2410_EXTINT_HILEV;
+ break;
+
+ default:
+ pr_err("No such irq type %d", type);
+ return -EINVAL;
+ }
+
+ value = __raw_readl(extint_reg);
+ value = (value & ~(7 << extint_offset)) | (newvalue << extint_offset);
+ __raw_writel(value, extint_reg);
+
+ return 0;
+}
+
+static int s3c_irqext_type(struct irq_data *data, unsigned int type)
+{
+ void __iomem *extint_reg;
+ void __iomem *gpcon_reg;
+ unsigned long gpcon_offset, extint_offset;
+
+ if ((data->hwirq >= 4) && (data->hwirq <= 7)) {
+ gpcon_reg = S3C2410_GPFCON;
+ extint_reg = S3C24XX_EXTINT0;
+ gpcon_offset = (data->hwirq) * 2;
+ extint_offset = (data->hwirq) * 4;
+ } else if ((data->hwirq >= 8) && (data->hwirq <= 15)) {
+ gpcon_reg = S3C2410_GPGCON;
+ extint_reg = S3C24XX_EXTINT1;
+ gpcon_offset = (data->hwirq - 8) * 2;
+ extint_offset = (data->hwirq - 8) * 4;
+ } else if ((data->hwirq >= 16) && (data->hwirq <= 23)) {
+ gpcon_reg = S3C2410_GPGCON;
+ extint_reg = S3C24XX_EXTINT2;
+ gpcon_offset = (data->hwirq - 8) * 2;
+ extint_offset = (data->hwirq - 16) * 4;
+ } else {
+ return -EINVAL;
+ }
+
+ return s3c_irqext_type_set(gpcon_reg, extint_reg, gpcon_offset,
+ extint_offset, type);
+}
+
+static int s3c_irqext0_type(struct irq_data *data, unsigned int type)
+{
+ void __iomem *extint_reg;
+ void __iomem *gpcon_reg;
+ unsigned long gpcon_offset, extint_offset;
+
+ if ((data->hwirq >= 0) && (data->hwirq <= 3)) {
+ gpcon_reg = S3C2410_GPFCON;
+ extint_reg = S3C24XX_EXTINT0;
+ gpcon_offset = (data->hwirq) * 2;
+ extint_offset = (data->hwirq) * 4;
+ } else {
+ return -EINVAL;
+ }
+
+ return s3c_irqext_type_set(gpcon_reg, extint_reg, gpcon_offset,
+ extint_offset, type);
+}
+
+static struct irq_chip s3c_irq_chip = {
+ .name = "s3c",
+ .irq_ack = s3c_irq_ack,
+ .irq_mask = s3c_irq_mask,
+ .irq_unmask = s3c_irq_unmask,
+ .irq_set_type = s3c_irq_type,
+ .irq_set_wake = s3c_irq_wake
+};
+
+static struct irq_chip s3c_irq_level_chip = {
+ .name = "s3c-level",
+ .irq_mask = s3c_irq_mask,
+ .irq_unmask = s3c_irq_unmask,
+ .irq_ack = s3c_irq_ack,
+ .irq_set_type = s3c_irq_type,
+};
+
+static struct irq_chip s3c_irqext_chip = {
+ .name = "s3c-ext",
+ .irq_mask = s3c_irq_mask,
+ .irq_unmask = s3c_irq_unmask,
+ .irq_ack = s3c_irq_ack,
+ .irq_set_type = s3c_irqext_type,
+ .irq_set_wake = s3c_irqext_wake
+};
+
+static struct irq_chip s3c_irq_eint0t4 = {
+ .name = "s3c-ext0",
+ .irq_ack = s3c_irq_ack,
+ .irq_mask = s3c_irq_mask,
+ .irq_unmask = s3c_irq_unmask,
+ .irq_set_wake = s3c_irq_wake,
+ .irq_set_type = s3c_irqext0_type,
+};
+
+static void s3c_irq_demux(unsigned int irq, struct irq_desc *desc)
+{
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ struct s3c_irq_data *irq_data = irq_desc_get_chip_data(desc);
+ struct s3c_irq_intc *intc = irq_data->intc;
+ struct s3c_irq_intc *sub_intc = irq_data->sub_intc;
+ unsigned long src;
+ unsigned long msk;
+ unsigned int n;
+ unsigned int offset;
+
+ /* we're using individual domains for the non-dt case
+ * and one big domain for the dt case where the subintc
+ * starts at hwirq number 32.
+ */
+ offset = (intc->domain->of_node) ? 32 : 0;
+
+ chained_irq_enter(chip, desc);
+
+ src = __raw_readl(sub_intc->reg_pending);
+ msk = __raw_readl(sub_intc->reg_mask);
+
+ src &= ~msk;
+ src &= irq_data->sub_bits;
+
+ while (src) {
+ n = __ffs(src);
+ src &= ~(1 << n);
+ irq = irq_find_mapping(sub_intc->domain, offset + n);
+ generic_handle_irq(irq);
+ }
+
+ chained_irq_exit(chip, desc);
+}
+
+static inline int s3c24xx_handle_intc(struct s3c_irq_intc *intc,
+ struct pt_regs *regs, int intc_offset)
+{
+ int pnd;
+ int offset;
+ int irq;
+
+ pnd = __raw_readl(intc->reg_intpnd);
+ if (!pnd)
+ return false;
+
+ /* non-dt machines use individual domains */
+ if (!intc->domain->of_node)
+ intc_offset = 0;
+
+ /* We have a problem that the INTOFFSET register does not always
+ * show one interrupt. Occasionally we get two interrupts through
+ * the prioritiser, and this causes the INTOFFSET register to show
+ * what looks like the logical-or of the two interrupt numbers.
+ *
+ * Thanks to Klaus, Shannon, et al for helping to debug this problem
+ */
+ offset = __raw_readl(intc->reg_intpnd + 4);
+
+ /* Find the bit manually, when the offset is wrong.
+ * The pending register only ever contains the one bit of the next
+ * interrupt to handle.
+ */
+ if (!(pnd & (1 << offset)))
+ offset = __ffs(pnd);
+
+ irq = irq_find_mapping(intc->domain, intc_offset + offset);
+ handle_IRQ(irq, regs);
+ return true;
+}
+
+asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs)
+{
+ do {
+ if (likely(s3c_intc[0]))
+ if (s3c24xx_handle_intc(s3c_intc[0], regs, 0))
+ continue;
+
+ if (s3c_intc[2])
+ if (s3c24xx_handle_intc(s3c_intc[2], regs, 64))
+ continue;
+
+ break;
+ } while (1);
+}
+
+#ifdef CONFIG_FIQ
+/**
+ * s3c24xx_set_fiq - set the FIQ routing
+ * @irq: IRQ number to route to FIQ on processor.
+ * @on: Whether to route @irq to the FIQ, or to remove the FIQ routing.
+ *
+ * Change the state of the IRQ to FIQ routing depending on @irq and @on. If
+ * @on is true, the @irq is checked to see if it can be routed and the
+ * interrupt controller updated to route the IRQ. If @on is false, the FIQ
+ * routing is cleared, regardless of which @irq is specified.
+ */
+int s3c24xx_set_fiq(unsigned int irq, bool on)
+{
+ u32 intmod;
+ unsigned offs;
+
+ if (on) {
+ offs = irq - FIQ_START;
+ if (offs > 31)
+ return -EINVAL;
+
+ intmod = 1 << offs;
+ } else {
+ intmod = 0;
+ }
+
+ __raw_writel(intmod, S3C2410_INTMOD);
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(s3c24xx_set_fiq);
+#endif
+
+static int s3c24xx_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct s3c_irq_intc *intc = h->host_data;
+ struct s3c_irq_data *irq_data = &intc->irqs[hw];
+ struct s3c_irq_intc *parent_intc;
+ struct s3c_irq_data *parent_irq_data;
+ unsigned int irqno;
+
+ /* attach controller pointer to irq_data */
+ irq_data->intc = intc;
+ irq_data->offset = hw;
+
+ parent_intc = intc->parent;
+
+ /* set handler and flags */
+ switch (irq_data->type) {
+ case S3C_IRQTYPE_NONE:
+ return 0;
+ case S3C_IRQTYPE_EINT:
+ /* On the S3C2412, the EINT0to3 have a parent irq
+ * but need the s3c_irq_eint0t4 chip
+ */
+ if (parent_intc && (!soc_is_s3c2412() || hw >= 4))
+ irq_set_chip_and_handler(virq, &s3c_irqext_chip,
+ handle_edge_irq);
+ else
+ irq_set_chip_and_handler(virq, &s3c_irq_eint0t4,
+ handle_edge_irq);
+ break;
+ case S3C_IRQTYPE_EDGE:
+ if (parent_intc || intc->reg_pending == S3C2416_SRCPND2)
+ irq_set_chip_and_handler(virq, &s3c_irq_level_chip,
+ handle_edge_irq);
+ else
+ irq_set_chip_and_handler(virq, &s3c_irq_chip,
+ handle_edge_irq);
+ break;
+ case S3C_IRQTYPE_LEVEL:
+ if (parent_intc)
+ irq_set_chip_and_handler(virq, &s3c_irq_level_chip,
+ handle_level_irq);
+ else
+ irq_set_chip_and_handler(virq, &s3c_irq_chip,
+ handle_level_irq);
+ break;
+ default:
+ pr_err("irq-s3c24xx: unsupported irqtype %d\n", irq_data->type);
+ return -EINVAL;
+ }
+
+ irq_set_chip_data(virq, irq_data);
+
+ set_irq_flags(virq, IRQF_VALID);
+
+ if (parent_intc && irq_data->type != S3C_IRQTYPE_NONE) {
+ if (irq_data->parent_irq > 31) {
+ pr_err("irq-s3c24xx: parent irq %lu is out of range\n",
+ irq_data->parent_irq);
+ goto err;
+ }
+
+ parent_irq_data = &parent_intc->irqs[irq_data->parent_irq];
+ parent_irq_data->sub_intc = intc;
+ parent_irq_data->sub_bits |= (1UL << hw);
+
+ /* attach the demuxer to the parent irq */
+ irqno = irq_find_mapping(parent_intc->domain,
+ irq_data->parent_irq);
+ if (!irqno) {
+ pr_err("irq-s3c24xx: could not find mapping for parent irq %lu\n",
+ irq_data->parent_irq);
+ goto err;
+ }
+ irq_set_chained_handler(irqno, s3c_irq_demux);
+ }
+
+ return 0;
+
+err:
+ set_irq_flags(virq, 0);
+
+ /* the only error can result from bad mapping data*/
+ return -EINVAL;
+}
+
+static struct irq_domain_ops s3c24xx_irq_ops = {
+ .map = s3c24xx_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+static void s3c24xx_clear_intc(struct s3c_irq_intc *intc)
+{
+ void __iomem *reg_source;
+ unsigned long pend;
+ unsigned long last;
+ int i;
+
+ /* if intpnd is set, read the next pending irq from there */
+ reg_source = intc->reg_intpnd ? intc->reg_intpnd : intc->reg_pending;
+
+ last = 0;
+ for (i = 0; i < 4; i++) {
+ pend = __raw_readl(reg_source);
+
+ if (pend == 0 || pend == last)
+ break;
+
+ __raw_writel(pend, intc->reg_pending);
+ if (intc->reg_intpnd)
+ __raw_writel(pend, intc->reg_intpnd);
+
+ pr_info("irq: clearing pending status %08x\n", (int)pend);
+ last = pend;
+ }
+}
+
+static struct s3c_irq_intc *s3c24xx_init_intc(struct device_node *np,
+ struct s3c_irq_data *irq_data,
+ struct s3c_irq_intc *parent,
+ unsigned long address)
+{
+ struct s3c_irq_intc *intc;
+ void __iomem *base = (void *)0xf6000000; /* static mapping */
+ int irq_num;
+ int irq_start;
+ int ret;
+
+ intc = kzalloc(sizeof(struct s3c_irq_intc), GFP_KERNEL);
+ if (!intc)
+ return ERR_PTR(-ENOMEM);
+
+ intc->irqs = irq_data;
+
+ if (parent)
+ intc->parent = parent;
+
+ /* select the correct data for the controller.
+ * Need to hard code the irq num start and offset
+ * to preserve the static mapping for now
+ */
+ switch (address) {
+ case 0x4a000000:
+ pr_debug("irq: found main intc\n");
+ intc->reg_pending = base;
+ intc->reg_mask = base + 0x08;
+ intc->reg_intpnd = base + 0x10;
+ irq_num = 32;
+ irq_start = S3C2410_IRQ(0);
+ break;
+ case 0x4a000018:
+ pr_debug("irq: found subintc\n");
+ intc->reg_pending = base + 0x18;
+ intc->reg_mask = base + 0x1c;
+ irq_num = 29;
+ irq_start = S3C2410_IRQSUB(0);
+ break;
+ case 0x4a000040:
+ pr_debug("irq: found intc2\n");
+ intc->reg_pending = base + 0x40;
+ intc->reg_mask = base + 0x48;
+ intc->reg_intpnd = base + 0x50;
+ irq_num = 8;
+ irq_start = S3C2416_IRQ(0);
+ break;
+ case 0x560000a4:
+ pr_debug("irq: found eintc\n");
+ base = (void *)0xfd000000;
+
+ intc->reg_mask = base + 0xa4;
+ intc->reg_pending = base + 0x08;
+ irq_num = 24;
+ irq_start = S3C2410_IRQ(32);
+ break;
+ default:
+ pr_err("irq: unsupported controller address\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ /* now that all the data is complete, init the irq-domain */
+ s3c24xx_clear_intc(intc);
+ intc->domain = irq_domain_add_legacy(np, irq_num, irq_start,
+ 0, &s3c24xx_irq_ops,
+ intc);
+ if (!intc->domain) {
+ pr_err("irq: could not create irq-domain\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ set_handle_irq(s3c24xx_handle_irq);
+
+ return intc;
+
+err:
+ kfree(intc);
+ return ERR_PTR(ret);
+}
+
+static struct s3c_irq_data init_eint[32] = {
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT4 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT5 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT6 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT7 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT8 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT9 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT10 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT11 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT12 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT13 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT14 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT15 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT16 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT17 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT18 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT19 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT20 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT21 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT22 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT23 */
+};
+
+#ifdef CONFIG_CPU_S3C2410
+static struct s3c_irq_data init_s3c2410base[32] = {
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
+ { .type = S3C_IRQTYPE_EDGE, }, /* WDT */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* LCD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SDI */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
+ { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
+};
+
+static struct s3c_irq_data init_s3c2410subint[32] = {
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
+};
+
+void __init s3c2410_init_irq(void)
+{
+#ifdef CONFIG_FIQ
+ init_FIQ(FIQ_START);
+#endif
+
+ s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2410base[0], NULL,
+ 0x4a000000);
+ if (IS_ERR(s3c_intc[0])) {
+ pr_err("irq: could not create main interrupt controller\n");
+ return;
+ }
+
+ s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2410subint[0],
+ s3c_intc[0], 0x4a000018);
+ s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4);
+}
+#endif
+
+#ifdef CONFIG_CPU_S3C2412
+static struct s3c_irq_data init_s3c2412base[32] = {
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT0 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT1 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT2 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT3 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
+ { .type = S3C_IRQTYPE_EDGE, }, /* WDT */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* LCD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* SDI/CF */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
+ { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
+};
+
+static struct s3c_irq_data init_s3c2412eint[32] = {
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 0 }, /* EINT0 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 1 }, /* EINT1 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 2 }, /* EINT2 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 3 }, /* EINT3 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT4 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT5 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT6 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT7 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT8 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT9 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT10 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT11 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT12 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT13 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT14 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT15 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT16 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT17 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT18 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT19 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT20 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT21 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT22 */
+ { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT23 */
+};
+
+static struct s3c_irq_data init_s3c2412subint[32] = {
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
+ { .type = S3C_IRQTYPE_NONE, },
+ { .type = S3C_IRQTYPE_NONE, },
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 21 }, /* SDI */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 21 }, /* CF */
+};
+
+void s3c2412_init_irq(void)
+{
+ pr_info("S3C2412: IRQ Support\n");
+
+#ifdef CONFIG_FIQ
+ init_FIQ(FIQ_START);
+#endif
+
+ s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2412base[0], NULL,
+ 0x4a000000);
+ if (IS_ERR(s3c_intc[0])) {
+ pr_err("irq: could not create main interrupt controller\n");
+ return;
+ }
+
+ s3c24xx_init_intc(NULL, &init_s3c2412eint[0], s3c_intc[0], 0x560000a4);
+ s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2412subint[0],
+ s3c_intc[0], 0x4a000018);
+}
+#endif
+
+#ifdef CONFIG_CPU_S3C2416
+static struct s3c_irq_data init_s3c2416base[32] = {
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* LCD */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* DMA */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART3 */
+ { .type = S3C_IRQTYPE_NONE, }, /* reserved */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SDI1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SDI0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* NAND */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
+ { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
+ { .type = S3C_IRQTYPE_NONE, },
+ { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
+};
+
+static struct s3c_irq_data init_s3c2416subint[32] = {
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
+ { .type = S3C_IRQTYPE_NONE }, /* reserved */
+ { .type = S3C_IRQTYPE_NONE }, /* reserved */
+ { .type = S3C_IRQTYPE_NONE }, /* reserved */
+ { .type = S3C_IRQTYPE_NONE }, /* reserved */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD2 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD3 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD4 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA0 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA1 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA2 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA3 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA4 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA5 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */
+};
+
+static struct s3c_irq_data init_s3c2416_second[32] = {
+ { .type = S3C_IRQTYPE_EDGE }, /* 2D */
+ { .type = S3C_IRQTYPE_NONE }, /* reserved */
+ { .type = S3C_IRQTYPE_NONE }, /* reserved */
+ { .type = S3C_IRQTYPE_NONE }, /* reserved */
+ { .type = S3C_IRQTYPE_EDGE }, /* PCM0 */
+ { .type = S3C_IRQTYPE_NONE }, /* reserved */
+ { .type = S3C_IRQTYPE_EDGE }, /* I2S0 */
+};
+
+void __init s3c2416_init_irq(void)
+{
+ pr_info("S3C2416: IRQ Support\n");
+
+#ifdef CONFIG_FIQ
+ init_FIQ(FIQ_START);
+#endif
+
+ s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2416base[0], NULL,
+ 0x4a000000);
+ if (IS_ERR(s3c_intc[0])) {
+ pr_err("irq: could not create main interrupt controller\n");
+ return;
+ }
+
+ s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4);
+ s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2416subint[0],
+ s3c_intc[0], 0x4a000018);
+
+ s3c_intc[2] = s3c24xx_init_intc(NULL, &init_s3c2416_second[0],
+ NULL, 0x4a000040);
+}
+
+#endif
+
+#ifdef CONFIG_CPU_S3C2440
+static struct s3c_irq_data init_s3c2440base[32] = {
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* CAM */
+ { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* LCD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SDI */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* NFCON */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
+ { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
+};
+
+static struct s3c_irq_data init_s3c2440subint[32] = {
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_C */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_P */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */
+};
+
+void __init s3c2440_init_irq(void)
+{
+ pr_info("S3C2440: IRQ Support\n");
+
+#ifdef CONFIG_FIQ
+ init_FIQ(FIQ_START);
+#endif
+
+ s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2440base[0], NULL,
+ 0x4a000000);
+ if (IS_ERR(s3c_intc[0])) {
+ pr_err("irq: could not create main interrupt controller\n");
+ return;
+ }
+
+ s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4);
+ s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2440subint[0],
+ s3c_intc[0], 0x4a000018);
+}
+#endif
+
+#ifdef CONFIG_CPU_S3C2442
+static struct s3c_irq_data init_s3c2442base[32] = {
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* CAM */
+ { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
+ { .type = S3C_IRQTYPE_EDGE, }, /* WDT */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* LCD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SDI */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* NFCON */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
+ { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
+};
+
+static struct s3c_irq_data init_s3c2442subint[32] = {
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_C */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_P */
+};
+
+void __init s3c2442_init_irq(void)
+{
+ pr_info("S3C2442: IRQ Support\n");
+
+#ifdef CONFIG_FIQ
+ init_FIQ(FIQ_START);
+#endif
+
+ s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2442base[0], NULL,
+ 0x4a000000);
+ if (IS_ERR(s3c_intc[0])) {
+ pr_err("irq: could not create main interrupt controller\n");
+ return;
+ }
+
+ s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4);
+ s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2442subint[0],
+ s3c_intc[0], 0x4a000018);
+}
+#endif
+
+#ifdef CONFIG_CPU_S3C2443
+static struct s3c_irq_data init_s3c2443base[32] = {
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */
+ { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* CAM */
+ { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TICK */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* LCD */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* DMA */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART3 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* CFON */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SDI1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SDI0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* NAND */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBD */
+ { .type = S3C_IRQTYPE_EDGE, }, /* USBH */
+ { .type = S3C_IRQTYPE_EDGE, }, /* IIC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */
+ { .type = S3C_IRQTYPE_EDGE, }, /* RTC */
+ { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */
+};
+
+
+static struct s3c_irq_data init_s3c2443subint[32] = {
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */
+ { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_C */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_P */
+ { .type = S3C_IRQTYPE_NONE }, /* reserved */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD1 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD2 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD3 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD4 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA0 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA1 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA2 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA3 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA4 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA5 */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-RX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-TX */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-ERR */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */
+ { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */
+};
+
+void __init s3c2443_init_irq(void)
+{
+ pr_info("S3C2443: IRQ Support\n");
+
+#ifdef CONFIG_FIQ
+ init_FIQ(FIQ_START);
+#endif
+
+ s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2443base[0], NULL,
+ 0x4a000000);
+ if (IS_ERR(s3c_intc[0])) {
+ pr_err("irq: could not create main interrupt controller\n");
+ return;
+ }
+
+ s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4);
+ s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2443subint[0],
+ s3c_intc[0], 0x4a000018);
+}
+#endif
+
+#ifdef CONFIG_OF
+static int s3c24xx_irq_map_of(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ unsigned int ctrl_num = hw / 32;
+ unsigned int intc_hw = hw % 32;
+ struct s3c_irq_intc *intc = s3c_intc[ctrl_num];
+ struct s3c_irq_intc *parent_intc = intc->parent;
+ struct s3c_irq_data *irq_data = &intc->irqs[intc_hw];
+
+ /* attach controller pointer to irq_data */
+ irq_data->intc = intc;
+ irq_data->offset = intc_hw;
+
+ if (!parent_intc)
+ irq_set_chip_and_handler(virq, &s3c_irq_chip, handle_edge_irq);
+ else
+ irq_set_chip_and_handler(virq, &s3c_irq_level_chip,
+ handle_edge_irq);
+
+ irq_set_chip_data(virq, irq_data);
+
+ set_irq_flags(virq, IRQF_VALID);
+
+ return 0;
+}
+
+/* Translate our of irq notation
+ * format: <ctrl_num ctrl_irq parent_irq type>
+ */
+static int s3c24xx_irq_xlate_of(struct irq_domain *d, struct device_node *n,
+ const u32 *intspec, unsigned int intsize,
+ irq_hw_number_t *out_hwirq, unsigned int *out_type)
+{
+ struct s3c_irq_intc *intc;
+ struct s3c_irq_intc *parent_intc;
+ struct s3c_irq_data *irq_data;
+ struct s3c_irq_data *parent_irq_data;
+ int irqno;
+
+ if (WARN_ON(intsize < 4))
+ return -EINVAL;
+
+ if (intspec[0] > 2 || !s3c_intc[intspec[0]]) {
+ pr_err("controller number %d invalid\n", intspec[0]);
+ return -EINVAL;
+ }
+ intc = s3c_intc[intspec[0]];
+
+ *out_hwirq = intspec[0] * 32 + intspec[2];
+ *out_type = intspec[3] & IRQ_TYPE_SENSE_MASK;
+
+ parent_intc = intc->parent;
+ if (parent_intc) {
+ irq_data = &intc->irqs[intspec[2]];
+ irq_data->parent_irq = intspec[1];
+ parent_irq_data = &parent_intc->irqs[irq_data->parent_irq];
+ parent_irq_data->sub_intc = intc;
+ parent_irq_data->sub_bits |= (1UL << intspec[2]);
+
+ /* parent_intc is always s3c_intc[0], so no offset */
+ irqno = irq_create_mapping(parent_intc->domain, intspec[1]);
+ if (irqno < 0) {
+ pr_err("irq: could not map parent interrupt\n");
+ return irqno;
+ }
+
+ irq_set_chained_handler(irqno, s3c_irq_demux);
+ }
+
+ return 0;
+}
+
+static struct irq_domain_ops s3c24xx_irq_ops_of = {
+ .map = s3c24xx_irq_map_of,
+ .xlate = s3c24xx_irq_xlate_of,
+};
+
+struct s3c24xx_irq_of_ctrl {
+ char *name;
+ unsigned long offset;
+ struct s3c_irq_intc **handle;
+ struct s3c_irq_intc **parent;
+ struct irq_domain_ops *ops;
+};
+
+static int __init s3c_init_intc_of(struct device_node *np,
+ struct device_node *interrupt_parent,
+ struct s3c24xx_irq_of_ctrl *s3c_ctrl, int num_ctrl)
+{
+ struct s3c_irq_intc *intc;
+ struct s3c24xx_irq_of_ctrl *ctrl;
+ struct irq_domain *domain;
+ void __iomem *reg_base;
+ int i;
+
+ reg_base = of_iomap(np, 0);
+ if (!reg_base) {
+ pr_err("irq-s3c24xx: could not map irq registers\n");
+ return -EINVAL;
+ }
+
+ domain = irq_domain_add_linear(np, num_ctrl * 32,
+ &s3c24xx_irq_ops_of, NULL);
+ if (!domain) {
+ pr_err("irq: could not create irq-domain\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < num_ctrl; i++) {
+ ctrl = &s3c_ctrl[i];
+
+ pr_debug("irq: found controller %s\n", ctrl->name);
+
+ intc = kzalloc(sizeof(struct s3c_irq_intc), GFP_KERNEL);
+ if (!intc)
+ return -ENOMEM;
+
+ intc->domain = domain;
+ intc->irqs = kzalloc(sizeof(struct s3c_irq_data) * 32,
+ GFP_KERNEL);
+ if (!intc->irqs) {
+ kfree(intc);
+ return -ENOMEM;
+ }
+
+ if (ctrl->parent) {
+ intc->reg_pending = reg_base + ctrl->offset;
+ intc->reg_mask = reg_base + ctrl->offset + 0x4;
+
+ if (*(ctrl->parent)) {
+ intc->parent = *(ctrl->parent);
+ } else {
+ pr_warn("irq: parent of %s missing\n",
+ ctrl->name);
+ kfree(intc->irqs);
+ kfree(intc);
+ continue;
+ }
+ } else {
+ intc->reg_pending = reg_base + ctrl->offset;
+ intc->reg_mask = reg_base + ctrl->offset + 0x08;
+ intc->reg_intpnd = reg_base + ctrl->offset + 0x10;
+ }
+
+ s3c24xx_clear_intc(intc);
+ s3c_intc[i] = intc;
+ }
+
+ set_handle_irq(s3c24xx_handle_irq);
+
+ return 0;
+}
+
+static struct s3c24xx_irq_of_ctrl s3c2410_ctrl[] = {
+ {
+ .name = "intc",
+ .offset = 0,
+ }, {
+ .name = "subintc",
+ .offset = 0x18,
+ .parent = &s3c_intc[0],
+ }
+};
+
+int __init s3c2410_init_intc_of(struct device_node *np,
+ struct device_node *interrupt_parent,
+ struct s3c24xx_irq_of_ctrl *ctrl, int num_ctrl)
+{
+ return s3c_init_intc_of(np, interrupt_parent,
+ s3c2410_ctrl, ARRAY_SIZE(s3c2410_ctrl));
+}
+IRQCHIP_DECLARE(s3c2410_irq, "samsung,s3c2410-irq", s3c2410_init_intc_of);
+
+static struct s3c24xx_irq_of_ctrl s3c2416_ctrl[] = {
+ {
+ .name = "intc",
+ .offset = 0,
+ }, {
+ .name = "subintc",
+ .offset = 0x18,
+ .parent = &s3c_intc[0],
+ }, {
+ .name = "intc2",
+ .offset = 0x40,
+ }
+};
+
+int __init s3c2416_init_intc_of(struct device_node *np,
+ struct device_node *interrupt_parent,
+ struct s3c24xx_irq_of_ctrl *ctrl, int num_ctrl)
+{
+ return s3c_init_intc_of(np, interrupt_parent,
+ s3c2416_ctrl, ARRAY_SIZE(s3c2416_ctrl));
+}
+IRQCHIP_DECLARE(s3c2416_irq, "samsung,s3c2416-irq", s3c2416_init_intc_of);
+#endif
projects / firefly-linux-kernel-4.4.55.git / commitdiff