| /* |
| * 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\n", 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\n", 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 <= 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 = kcalloc(32, sizeof(struct s3c_irq_data), |
| 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 |
