/*
* 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/irqchip.h>
#include <linux/irqchip/chained_irq.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>
#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 = readl_relaxed(intc->reg_mask);
mask |= (1UL << irq_data->offset);
writel_relaxed(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 = readl_relaxed(intc->reg_mask);
mask &= ~(1UL << irq_data->offset);
writel_relaxed(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;
writel_relaxed(bitval, intc->reg_pending);
if (intc->reg_intpnd)
writel_relaxed(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 = readl_relaxed(gpcon_reg);
value = (value & ~(3 << gpcon_offset)) | (0x02 << gpcon_offset);
writel_relaxed(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 = readl_relaxed(extint_reg);
value = (value & ~(7 << extint_offset)) | (newvalue << extint_offset);
writel_relaxed(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(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 int n, offset, irq;
unsigned long src, msk;
/* 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 = irq_domain_get_of_node(intc->domain) ? 32 : 0;
chained_irq_enter(chip, desc);
src = readl_relaxed(sub_intc->reg_pending);
msk = readl_relaxed(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;
pnd = readl_relaxed(intc->reg_intpnd);
if (!pnd)
return false;
/* non-dt machines use individual domains */
if (!irq_domain_get_of_node(intc->domain))
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 = readl_relaxed(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);
handle_domain_irq(intc->domain, intc_offset + offset, 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;
}
writel_relaxed(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);
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);
return -EINVAL;
}
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);
return -EINVAL;
}
irq_set_chained_handler(irqno, s3c_irq_demux);
}
return 0;
}
static const 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 = readl_relaxed(reg_source);
if (pend == 0 || pend == last)
break;
writel_relaxed(pend, intc->reg_pending);
if (intc->reg_intpnd)
writel_relaxed(pend, intc->reg_intpnd);
pr_info("irq: clearing pending status %08x\n", (int)pend);
last = pend;
}
}
static struct s3c_irq_intc * __init 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 + 0xa8;
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 __maybe_unused 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 __init 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);
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 const 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)
{
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)
{
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
