Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1 | /* |
| 2 | * S3C24XX IRQ handling |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 3 | * |
Ben Dooks | e02f866 | 2009-11-13 22:54:13 +0000 | [diff] [blame] | 4 | * Copyright (c) 2003-2004 Simtec Electronics |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 5 | * Ben Dooks <ben@simtec.co.uk> |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 6 | * Copyright (c) 2012 Heiko Stuebner <heiko@sntech.de> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 17 | */ |
| 18 | |
| 19 | #include <linux/init.h> |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 20 | #include <linux/slab.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 21 | #include <linux/module.h> |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 22 | #include <linux/io.h> |
| 23 | #include <linux/err.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 24 | #include <linux/interrupt.h> |
| 25 | #include <linux/ioport.h> |
Kay Sievers | edbaa60 | 2011-12-21 16:26:03 -0800 | [diff] [blame] | 26 | #include <linux/device.h> |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 27 | #include <linux/irqdomain.h> |
Joel Porquet | 41a83e0 | 2015-07-07 17:11:46 -0400 | [diff] [blame] | 28 | #include <linux/irqchip.h> |
Linus Torvalds | 6fa52ed | 2013-05-04 12:31:18 -0700 | [diff] [blame] | 29 | #include <linux/irqchip/chained_irq.h> |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 30 | #include <linux/of.h> |
| 31 | #include <linux/of_irq.h> |
| 32 | #include <linux/of_address.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 33 | |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 34 | #include <asm/exception.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 35 | #include <asm/mach/irq.h> |
| 36 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 37 | #include <mach/regs-irq.h> |
| 38 | #include <mach/regs-gpio.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 39 | |
Ben Dooks | a2b7ba9 | 2008-10-07 22:26:09 +0100 | [diff] [blame] | 40 | #include <plat/cpu.h> |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 41 | #include <plat/regs-irqtype.h> |
Ben Dooks | a2b7ba9 | 2008-10-07 22:26:09 +0100 | [diff] [blame] | 42 | #include <plat/pm.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 43 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 44 | #define S3C_IRQTYPE_NONE 0 |
| 45 | #define S3C_IRQTYPE_EINT 1 |
| 46 | #define S3C_IRQTYPE_EDGE 2 |
| 47 | #define S3C_IRQTYPE_LEVEL 3 |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 48 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 49 | struct s3c_irq_data { |
| 50 | unsigned int type; |
Heiko Stuebner | f5a2552 | 2013-04-04 14:53:52 +0900 | [diff] [blame] | 51 | unsigned long offset; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 52 | unsigned long parent_irq; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 53 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 54 | /* data gets filled during init */ |
| 55 | struct s3c_irq_intc *intc; |
| 56 | unsigned long sub_bits; |
| 57 | struct s3c_irq_intc *sub_intc; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 58 | }; |
| 59 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 60 | /* |
| 61 | * Sructure holding the controller data |
| 62 | * @reg_pending register holding pending irqs |
| 63 | * @reg_intpnd special register intpnd in main intc |
| 64 | * @reg_mask mask register |
| 65 | * @domain irq_domain of the controller |
| 66 | * @parent parent controller for ext and sub irqs |
| 67 | * @irqs irq-data, always s3c_irq_data[32] |
| 68 | */ |
| 69 | struct s3c_irq_intc { |
| 70 | void __iomem *reg_pending; |
| 71 | void __iomem *reg_intpnd; |
| 72 | void __iomem *reg_mask; |
| 73 | struct irq_domain *domain; |
| 74 | struct s3c_irq_intc *parent; |
| 75 | struct s3c_irq_data *irqs; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 76 | }; |
| 77 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 78 | /* |
| 79 | * Array holding pointers to the global controller structs |
| 80 | * [0] ... main_intc |
| 81 | * [1] ... sub_intc |
| 82 | * [2] ... main_intc2 on s3c2416 |
| 83 | */ |
| 84 | static struct s3c_irq_intc *s3c_intc[3]; |
| 85 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 86 | static void s3c_irq_mask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 87 | { |
Heiko Stuebner | f5a2552 | 2013-04-04 14:53:52 +0900 | [diff] [blame] | 88 | struct s3c_irq_data *irq_data = irq_data_get_irq_chip_data(data); |
| 89 | struct s3c_irq_intc *intc = irq_data->intc; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 90 | struct s3c_irq_intc *parent_intc = intc->parent; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 91 | struct s3c_irq_data *parent_data; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 92 | unsigned long mask; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 93 | unsigned int irqno; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 94 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 95 | mask = __raw_readl(intc->reg_mask); |
Heiko Stuebner | f5a2552 | 2013-04-04 14:53:52 +0900 | [diff] [blame] | 96 | mask |= (1UL << irq_data->offset); |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 97 | __raw_writel(mask, intc->reg_mask); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 98 | |
Heiko Stuebner | 0fe3cb1 | 2013-03-07 12:38:16 +0900 | [diff] [blame] | 99 | if (parent_intc) { |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 100 | parent_data = &parent_intc->irqs[irq_data->parent_irq]; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 101 | |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 102 | /* check to see if we need to mask the parent IRQ |
| 103 | * The parent_irq is always in main_intc, so the hwirq |
| 104 | * for find_mapping does not need an offset in any case. |
| 105 | */ |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 106 | if ((mask & parent_data->sub_bits) == parent_data->sub_bits) { |
| 107 | irqno = irq_find_mapping(parent_intc->domain, |
| 108 | irq_data->parent_irq); |
| 109 | s3c_irq_mask(irq_get_irq_data(irqno)); |
| 110 | } |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 111 | } |
| 112 | } |
| 113 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 114 | static void s3c_irq_unmask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 115 | { |
Heiko Stuebner | f5a2552 | 2013-04-04 14:53:52 +0900 | [diff] [blame] | 116 | struct s3c_irq_data *irq_data = irq_data_get_irq_chip_data(data); |
| 117 | struct s3c_irq_intc *intc = irq_data->intc; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 118 | struct s3c_irq_intc *parent_intc = intc->parent; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 119 | unsigned long mask; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 120 | unsigned int irqno; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 121 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 122 | mask = __raw_readl(intc->reg_mask); |
Heiko Stuebner | f5a2552 | 2013-04-04 14:53:52 +0900 | [diff] [blame] | 123 | mask &= ~(1UL << irq_data->offset); |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 124 | __raw_writel(mask, intc->reg_mask); |
| 125 | |
Heiko Stuebner | 0fe3cb1 | 2013-03-07 12:38:16 +0900 | [diff] [blame] | 126 | if (parent_intc) { |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 127 | irqno = irq_find_mapping(parent_intc->domain, |
| 128 | irq_data->parent_irq); |
| 129 | s3c_irq_unmask(irq_get_irq_data(irqno)); |
| 130 | } |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 131 | } |
| 132 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 133 | static inline void s3c_irq_ack(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 134 | { |
Heiko Stuebner | f5a2552 | 2013-04-04 14:53:52 +0900 | [diff] [blame] | 135 | struct s3c_irq_data *irq_data = irq_data_get_irq_chip_data(data); |
| 136 | struct s3c_irq_intc *intc = irq_data->intc; |
| 137 | unsigned long bitval = 1UL << irq_data->offset; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 138 | |
| 139 | __raw_writel(bitval, intc->reg_pending); |
| 140 | if (intc->reg_intpnd) |
| 141 | __raw_writel(bitval, intc->reg_intpnd); |
| 142 | } |
| 143 | |
Heiko Stuebner | bd7c0da | 2013-04-04 14:53:45 +0900 | [diff] [blame] | 144 | static int s3c_irq_type(struct irq_data *data, unsigned int type) |
| 145 | { |
| 146 | switch (type) { |
| 147 | case IRQ_TYPE_NONE: |
| 148 | break; |
| 149 | case IRQ_TYPE_EDGE_RISING: |
| 150 | case IRQ_TYPE_EDGE_FALLING: |
| 151 | case IRQ_TYPE_EDGE_BOTH: |
| 152 | irq_set_handler(data->irq, handle_edge_irq); |
| 153 | break; |
| 154 | case IRQ_TYPE_LEVEL_LOW: |
| 155 | case IRQ_TYPE_LEVEL_HIGH: |
| 156 | irq_set_handler(data->irq, handle_level_irq); |
| 157 | break; |
| 158 | default: |
| 159 | pr_err("No such irq type %d", type); |
| 160 | return -EINVAL; |
| 161 | } |
| 162 | |
| 163 | return 0; |
| 164 | } |
| 165 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 166 | static int s3c_irqext_type_set(void __iomem *gpcon_reg, |
| 167 | void __iomem *extint_reg, |
| 168 | unsigned long gpcon_offset, |
| 169 | unsigned long extint_offset, |
| 170 | unsigned int type) |
| 171 | { |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 172 | unsigned long newvalue = 0, value; |
| 173 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 174 | /* Set the GPIO to external interrupt mode */ |
| 175 | value = __raw_readl(gpcon_reg); |
| 176 | value = (value & ~(3 << gpcon_offset)) | (0x02 << gpcon_offset); |
| 177 | __raw_writel(value, gpcon_reg); |
| 178 | |
| 179 | /* Set the external interrupt to pointed trigger type */ |
| 180 | switch (type) |
| 181 | { |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 182 | case IRQ_TYPE_NONE: |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 183 | pr_warn("No edge setting!\n"); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 184 | break; |
| 185 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 186 | case IRQ_TYPE_EDGE_RISING: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 187 | newvalue = S3C2410_EXTINT_RISEEDGE; |
| 188 | break; |
| 189 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 190 | case IRQ_TYPE_EDGE_FALLING: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 191 | newvalue = S3C2410_EXTINT_FALLEDGE; |
| 192 | break; |
| 193 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 194 | case IRQ_TYPE_EDGE_BOTH: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 195 | newvalue = S3C2410_EXTINT_BOTHEDGE; |
| 196 | break; |
| 197 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 198 | case IRQ_TYPE_LEVEL_LOW: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 199 | newvalue = S3C2410_EXTINT_LOWLEV; |
| 200 | break; |
| 201 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 202 | case IRQ_TYPE_LEVEL_HIGH: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 203 | newvalue = S3C2410_EXTINT_HILEV; |
| 204 | break; |
| 205 | |
| 206 | default: |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 207 | pr_err("No such irq type %d", type); |
| 208 | return -EINVAL; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 209 | } |
| 210 | |
| 211 | value = __raw_readl(extint_reg); |
| 212 | value = (value & ~(7 << extint_offset)) | (newvalue << extint_offset); |
| 213 | __raw_writel(value, extint_reg); |
| 214 | |
| 215 | return 0; |
| 216 | } |
| 217 | |
Heiko Stuebner | dc1a353 | 2013-02-12 14:23:01 -0800 | [diff] [blame] | 218 | static int s3c_irqext_type(struct irq_data *data, unsigned int type) |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 219 | { |
| 220 | void __iomem *extint_reg; |
| 221 | void __iomem *gpcon_reg; |
| 222 | unsigned long gpcon_offset, extint_offset; |
| 223 | |
| 224 | if ((data->hwirq >= 4) && (data->hwirq <= 7)) { |
| 225 | gpcon_reg = S3C2410_GPFCON; |
| 226 | extint_reg = S3C24XX_EXTINT0; |
| 227 | gpcon_offset = (data->hwirq) * 2; |
| 228 | extint_offset = (data->hwirq) * 4; |
| 229 | } else if ((data->hwirq >= 8) && (data->hwirq <= 15)) { |
| 230 | gpcon_reg = S3C2410_GPGCON; |
| 231 | extint_reg = S3C24XX_EXTINT1; |
| 232 | gpcon_offset = (data->hwirq - 8) * 2; |
| 233 | extint_offset = (data->hwirq - 8) * 4; |
| 234 | } else if ((data->hwirq >= 16) && (data->hwirq <= 23)) { |
| 235 | gpcon_reg = S3C2410_GPGCON; |
| 236 | extint_reg = S3C24XX_EXTINT2; |
| 237 | gpcon_offset = (data->hwirq - 8) * 2; |
| 238 | extint_offset = (data->hwirq - 16) * 4; |
| 239 | } else { |
| 240 | return -EINVAL; |
| 241 | } |
| 242 | |
| 243 | return s3c_irqext_type_set(gpcon_reg, extint_reg, gpcon_offset, |
| 244 | extint_offset, type); |
| 245 | } |
| 246 | |
| 247 | static int s3c_irqext0_type(struct irq_data *data, unsigned int type) |
| 248 | { |
| 249 | void __iomem *extint_reg; |
| 250 | void __iomem *gpcon_reg; |
| 251 | unsigned long gpcon_offset, extint_offset; |
| 252 | |
| 253 | if ((data->hwirq >= 0) && (data->hwirq <= 3)) { |
| 254 | gpcon_reg = S3C2410_GPFCON; |
| 255 | extint_reg = S3C24XX_EXTINT0; |
| 256 | gpcon_offset = (data->hwirq) * 2; |
| 257 | extint_offset = (data->hwirq) * 4; |
| 258 | } else { |
| 259 | return -EINVAL; |
| 260 | } |
| 261 | |
| 262 | return s3c_irqext_type_set(gpcon_reg, extint_reg, gpcon_offset, |
| 263 | extint_offset, type); |
| 264 | } |
| 265 | |
Heiko Stuebner | dc1a353 | 2013-02-12 14:23:01 -0800 | [diff] [blame] | 266 | static struct irq_chip s3c_irq_chip = { |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 267 | .name = "s3c", |
| 268 | .irq_ack = s3c_irq_ack, |
| 269 | .irq_mask = s3c_irq_mask, |
| 270 | .irq_unmask = s3c_irq_unmask, |
Heiko Stuebner | bd7c0da | 2013-04-04 14:53:45 +0900 | [diff] [blame] | 271 | .irq_set_type = s3c_irq_type, |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 272 | .irq_set_wake = s3c_irq_wake |
| 273 | }; |
| 274 | |
Heiko Stuebner | dc1a353 | 2013-02-12 14:23:01 -0800 | [diff] [blame] | 275 | static struct irq_chip s3c_irq_level_chip = { |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 276 | .name = "s3c-level", |
| 277 | .irq_mask = s3c_irq_mask, |
| 278 | .irq_unmask = s3c_irq_unmask, |
| 279 | .irq_ack = s3c_irq_ack, |
Heiko Stuebner | bd7c0da | 2013-04-04 14:53:45 +0900 | [diff] [blame] | 280 | .irq_set_type = s3c_irq_type, |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 281 | }; |
| 282 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 283 | static struct irq_chip s3c_irqext_chip = { |
| 284 | .name = "s3c-ext", |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 285 | .irq_mask = s3c_irq_mask, |
| 286 | .irq_unmask = s3c_irq_unmask, |
| 287 | .irq_ack = s3c_irq_ack, |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 288 | .irq_set_type = s3c_irqext_type, |
Mark Brown | f5aeffb | 2010-12-02 14:35:38 +0900 | [diff] [blame] | 289 | .irq_set_wake = s3c_irqext_wake |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 290 | }; |
| 291 | |
| 292 | static struct irq_chip s3c_irq_eint0t4 = { |
| 293 | .name = "s3c-ext0", |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 294 | .irq_ack = s3c_irq_ack, |
| 295 | .irq_mask = s3c_irq_mask, |
| 296 | .irq_unmask = s3c_irq_unmask, |
| 297 | .irq_set_wake = s3c_irq_wake, |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 298 | .irq_set_type = s3c_irqext0_type, |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 299 | }; |
| 300 | |
Thomas Gleixner | bd0b9ac | 2015-09-14 10:42:37 +0200 | [diff] [blame] | 301 | static void s3c_irq_demux(struct irq_desc *desc) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 302 | { |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 303 | struct irq_chip *chip = irq_desc_get_chip(desc); |
Heiko Stuebner | f5a2552 | 2013-04-04 14:53:52 +0900 | [diff] [blame] | 304 | struct s3c_irq_data *irq_data = irq_desc_get_chip_data(desc); |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 305 | struct s3c_irq_intc *intc = irq_data->intc; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 306 | struct s3c_irq_intc *sub_intc = irq_data->sub_intc; |
Thomas Gleixner | 4df18a6 | 2015-07-16 22:39:29 +0200 | [diff] [blame] | 307 | unsigned int n, offset, irq; |
| 308 | unsigned long src, msk; |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 309 | |
| 310 | /* we're using individual domains for the non-dt case |
| 311 | * and one big domain for the dt case where the subintc |
| 312 | * starts at hwirq number 32. |
| 313 | */ |
| 314 | offset = (intc->domain->of_node) ? 32 : 0; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 315 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 316 | chained_irq_enter(chip, desc); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 317 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 318 | src = __raw_readl(sub_intc->reg_pending); |
| 319 | msk = __raw_readl(sub_intc->reg_mask); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 320 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 321 | src &= ~msk; |
| 322 | src &= irq_data->sub_bits; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 323 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 324 | while (src) { |
| 325 | n = __ffs(src); |
| 326 | src &= ~(1 << n); |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 327 | irq = irq_find_mapping(sub_intc->domain, offset + n); |
| 328 | generic_handle_irq(irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 329 | } |
| 330 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 331 | chained_irq_exit(chip, desc); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 332 | } |
| 333 | |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 334 | static inline int s3c24xx_handle_intc(struct s3c_irq_intc *intc, |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 335 | struct pt_regs *regs, int intc_offset) |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 336 | { |
| 337 | int pnd; |
| 338 | int offset; |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 339 | |
| 340 | pnd = __raw_readl(intc->reg_intpnd); |
| 341 | if (!pnd) |
| 342 | return false; |
| 343 | |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 344 | /* non-dt machines use individual domains */ |
| 345 | if (!intc->domain->of_node) |
| 346 | intc_offset = 0; |
| 347 | |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 348 | /* We have a problem that the INTOFFSET register does not always |
| 349 | * show one interrupt. Occasionally we get two interrupts through |
| 350 | * the prioritiser, and this causes the INTOFFSET register to show |
| 351 | * what looks like the logical-or of the two interrupt numbers. |
| 352 | * |
| 353 | * Thanks to Klaus, Shannon, et al for helping to debug this problem |
| 354 | */ |
| 355 | offset = __raw_readl(intc->reg_intpnd + 4); |
| 356 | |
| 357 | /* Find the bit manually, when the offset is wrong. |
| 358 | * The pending register only ever contains the one bit of the next |
| 359 | * interrupt to handle. |
| 360 | */ |
| 361 | if (!(pnd & (1 << offset))) |
| 362 | offset = __ffs(pnd); |
| 363 | |
Marc Zyngier | cf86bfd | 2014-08-26 11:03:26 +0100 | [diff] [blame] | 364 | handle_domain_irq(intc->domain, intc_offset + offset, regs); |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 365 | return true; |
| 366 | } |
| 367 | |
| 368 | asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs) |
| 369 | { |
| 370 | do { |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 371 | if (likely(s3c_intc[0])) |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 372 | if (s3c24xx_handle_intc(s3c_intc[0], regs, 0)) |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 373 | continue; |
| 374 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 375 | if (s3c_intc[2]) |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 376 | if (s3c24xx_handle_intc(s3c_intc[2], regs, 64)) |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 377 | continue; |
| 378 | |
| 379 | break; |
| 380 | } while (1); |
| 381 | } |
| 382 | |
Ben Dooks | 229fd8f | 2009-08-03 17:26:57 +0100 | [diff] [blame] | 383 | #ifdef CONFIG_FIQ |
| 384 | /** |
| 385 | * s3c24xx_set_fiq - set the FIQ routing |
| 386 | * @irq: IRQ number to route to FIQ on processor. |
| 387 | * @on: Whether to route @irq to the FIQ, or to remove the FIQ routing. |
| 388 | * |
| 389 | * Change the state of the IRQ to FIQ routing depending on @irq and @on. If |
| 390 | * @on is true, the @irq is checked to see if it can be routed and the |
| 391 | * interrupt controller updated to route the IRQ. If @on is false, the FIQ |
| 392 | * routing is cleared, regardless of which @irq is specified. |
| 393 | */ |
| 394 | int s3c24xx_set_fiq(unsigned int irq, bool on) |
| 395 | { |
| 396 | u32 intmod; |
| 397 | unsigned offs; |
| 398 | |
| 399 | if (on) { |
| 400 | offs = irq - FIQ_START; |
| 401 | if (offs > 31) |
| 402 | return -EINVAL; |
| 403 | |
| 404 | intmod = 1 << offs; |
| 405 | } else { |
| 406 | intmod = 0; |
| 407 | } |
| 408 | |
| 409 | __raw_writel(intmod, S3C2410_INTMOD); |
| 410 | return 0; |
| 411 | } |
Ben Dooks | 0f13c82 | 2009-12-07 14:51:38 +0000 | [diff] [blame] | 412 | |
| 413 | EXPORT_SYMBOL_GPL(s3c24xx_set_fiq); |
Ben Dooks | 229fd8f | 2009-08-03 17:26:57 +0100 | [diff] [blame] | 414 | #endif |
| 415 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 416 | static int s3c24xx_irq_map(struct irq_domain *h, unsigned int virq, |
| 417 | irq_hw_number_t hw) |
| 418 | { |
| 419 | struct s3c_irq_intc *intc = h->host_data; |
| 420 | struct s3c_irq_data *irq_data = &intc->irqs[hw]; |
| 421 | struct s3c_irq_intc *parent_intc; |
| 422 | struct s3c_irq_data *parent_irq_data; |
| 423 | unsigned int irqno; |
| 424 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 425 | /* attach controller pointer to irq_data */ |
| 426 | irq_data->intc = intc; |
Heiko Stuebner | f5a2552 | 2013-04-04 14:53:52 +0900 | [diff] [blame] | 427 | irq_data->offset = hw; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 428 | |
Heiko Stuebner | 0fe3cb1 | 2013-03-07 12:38:16 +0900 | [diff] [blame] | 429 | parent_intc = intc->parent; |
| 430 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 431 | /* set handler and flags */ |
| 432 | switch (irq_data->type) { |
| 433 | case S3C_IRQTYPE_NONE: |
| 434 | return 0; |
| 435 | case S3C_IRQTYPE_EINT: |
Heiko Stuebner | 1c8408e | 2013-02-12 10:12:09 -0800 | [diff] [blame] | 436 | /* On the S3C2412, the EINT0to3 have a parent irq |
| 437 | * but need the s3c_irq_eint0t4 chip |
| 438 | */ |
Heiko Stuebner | 0fe3cb1 | 2013-03-07 12:38:16 +0900 | [diff] [blame] | 439 | if (parent_intc && (!soc_is_s3c2412() || hw >= 4)) |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 440 | irq_set_chip_and_handler(virq, &s3c_irqext_chip, |
| 441 | handle_edge_irq); |
| 442 | else |
| 443 | irq_set_chip_and_handler(virq, &s3c_irq_eint0t4, |
| 444 | handle_edge_irq); |
| 445 | break; |
| 446 | case S3C_IRQTYPE_EDGE: |
Heiko Stuebner | 0fe3cb1 | 2013-03-07 12:38:16 +0900 | [diff] [blame] | 447 | if (parent_intc || intc->reg_pending == S3C2416_SRCPND2) |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 448 | irq_set_chip_and_handler(virq, &s3c_irq_level_chip, |
| 449 | handle_edge_irq); |
| 450 | else |
| 451 | irq_set_chip_and_handler(virq, &s3c_irq_chip, |
| 452 | handle_edge_irq); |
| 453 | break; |
| 454 | case S3C_IRQTYPE_LEVEL: |
Heiko Stuebner | 0fe3cb1 | 2013-03-07 12:38:16 +0900 | [diff] [blame] | 455 | if (parent_intc) |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 456 | irq_set_chip_and_handler(virq, &s3c_irq_level_chip, |
| 457 | handle_level_irq); |
| 458 | else |
| 459 | irq_set_chip_and_handler(virq, &s3c_irq_chip, |
| 460 | handle_level_irq); |
| 461 | break; |
| 462 | default: |
| 463 | pr_err("irq-s3c24xx: unsupported irqtype %d\n", irq_data->type); |
| 464 | return -EINVAL; |
| 465 | } |
Heiko Stuebner | f5a2552 | 2013-04-04 14:53:52 +0900 | [diff] [blame] | 466 | |
| 467 | irq_set_chip_data(virq, irq_data); |
| 468 | |
Heiko Stuebner | 0fe3cb1 | 2013-03-07 12:38:16 +0900 | [diff] [blame] | 469 | if (parent_intc && irq_data->type != S3C_IRQTYPE_NONE) { |
Heiko Stuebner | 502a298 | 2013-03-07 12:38:13 +0900 | [diff] [blame] | 470 | if (irq_data->parent_irq > 31) { |
| 471 | pr_err("irq-s3c24xx: parent irq %lu is out of range\n", |
| 472 | irq_data->parent_irq); |
Rob Herring | d17cab4 | 2015-08-29 18:01:22 -0500 | [diff] [blame] | 473 | return -EINVAL; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 474 | } |
| 475 | |
Heiko Stuebner | 502a298 | 2013-03-07 12:38:13 +0900 | [diff] [blame] | 476 | parent_irq_data = &parent_intc->irqs[irq_data->parent_irq]; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 477 | parent_irq_data->sub_intc = intc; |
| 478 | parent_irq_data->sub_bits |= (1UL << hw); |
| 479 | |
| 480 | /* attach the demuxer to the parent irq */ |
| 481 | irqno = irq_find_mapping(parent_intc->domain, |
| 482 | irq_data->parent_irq); |
| 483 | if (!irqno) { |
| 484 | pr_err("irq-s3c24xx: could not find mapping for parent irq %lu\n", |
| 485 | irq_data->parent_irq); |
Rob Herring | d17cab4 | 2015-08-29 18:01:22 -0500 | [diff] [blame] | 486 | return -EINVAL; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 487 | } |
| 488 | irq_set_chained_handler(irqno, s3c_irq_demux); |
| 489 | } |
| 490 | |
| 491 | return 0; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 492 | } |
| 493 | |
Krzysztof Kozlowski | 9600973 | 2015-04-27 21:54:24 +0900 | [diff] [blame] | 494 | static const struct irq_domain_ops s3c24xx_irq_ops = { |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 495 | .map = s3c24xx_irq_map, |
| 496 | .xlate = irq_domain_xlate_twocell, |
| 497 | }; |
| 498 | |
| 499 | static void s3c24xx_clear_intc(struct s3c_irq_intc *intc) |
| 500 | { |
| 501 | void __iomem *reg_source; |
| 502 | unsigned long pend; |
| 503 | unsigned long last; |
| 504 | int i; |
| 505 | |
| 506 | /* if intpnd is set, read the next pending irq from there */ |
| 507 | reg_source = intc->reg_intpnd ? intc->reg_intpnd : intc->reg_pending; |
| 508 | |
| 509 | last = 0; |
| 510 | for (i = 0; i < 4; i++) { |
| 511 | pend = __raw_readl(reg_source); |
| 512 | |
| 513 | if (pend == 0 || pend == last) |
| 514 | break; |
| 515 | |
| 516 | __raw_writel(pend, intc->reg_pending); |
| 517 | if (intc->reg_intpnd) |
| 518 | __raw_writel(pend, intc->reg_intpnd); |
| 519 | |
| 520 | pr_info("irq: clearing pending status %08x\n", (int)pend); |
| 521 | last = pend; |
| 522 | } |
| 523 | } |
| 524 | |
Arnd Bergmann | bc8fd90 | 2013-04-25 16:49:05 +0200 | [diff] [blame] | 525 | static struct s3c_irq_intc * __init s3c24xx_init_intc(struct device_node *np, |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 526 | struct s3c_irq_data *irq_data, |
| 527 | struct s3c_irq_intc *parent, |
| 528 | unsigned long address) |
| 529 | { |
| 530 | struct s3c_irq_intc *intc; |
| 531 | void __iomem *base = (void *)0xf6000000; /* static mapping */ |
| 532 | int irq_num; |
| 533 | int irq_start; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 534 | int ret; |
| 535 | |
| 536 | intc = kzalloc(sizeof(struct s3c_irq_intc), GFP_KERNEL); |
| 537 | if (!intc) |
| 538 | return ERR_PTR(-ENOMEM); |
| 539 | |
| 540 | intc->irqs = irq_data; |
| 541 | |
| 542 | if (parent) |
| 543 | intc->parent = parent; |
| 544 | |
| 545 | /* select the correct data for the controller. |
| 546 | * Need to hard code the irq num start and offset |
| 547 | * to preserve the static mapping for now |
| 548 | */ |
| 549 | switch (address) { |
| 550 | case 0x4a000000: |
| 551 | pr_debug("irq: found main intc\n"); |
| 552 | intc->reg_pending = base; |
| 553 | intc->reg_mask = base + 0x08; |
| 554 | intc->reg_intpnd = base + 0x10; |
| 555 | irq_num = 32; |
| 556 | irq_start = S3C2410_IRQ(0); |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 557 | break; |
| 558 | case 0x4a000018: |
| 559 | pr_debug("irq: found subintc\n"); |
| 560 | intc->reg_pending = base + 0x18; |
| 561 | intc->reg_mask = base + 0x1c; |
| 562 | irq_num = 29; |
| 563 | irq_start = S3C2410_IRQSUB(0); |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 564 | break; |
| 565 | case 0x4a000040: |
| 566 | pr_debug("irq: found intc2\n"); |
| 567 | intc->reg_pending = base + 0x40; |
| 568 | intc->reg_mask = base + 0x48; |
| 569 | intc->reg_intpnd = base + 0x50; |
| 570 | irq_num = 8; |
| 571 | irq_start = S3C2416_IRQ(0); |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 572 | break; |
| 573 | case 0x560000a4: |
| 574 | pr_debug("irq: found eintc\n"); |
| 575 | base = (void *)0xfd000000; |
| 576 | |
| 577 | intc->reg_mask = base + 0xa4; |
Linus Torvalds | 6fa52ed | 2013-05-04 12:31:18 -0700 | [diff] [blame] | 578 | intc->reg_pending = base + 0xa8; |
Heiko Stuebner | 5424f21 | 2013-02-12 10:12:04 -0800 | [diff] [blame] | 579 | irq_num = 24; |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 580 | irq_start = S3C2410_IRQ(32); |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 581 | break; |
| 582 | default: |
| 583 | pr_err("irq: unsupported controller address\n"); |
| 584 | ret = -EINVAL; |
| 585 | goto err; |
| 586 | } |
| 587 | |
| 588 | /* now that all the data is complete, init the irq-domain */ |
| 589 | s3c24xx_clear_intc(intc); |
| 590 | intc->domain = irq_domain_add_legacy(np, irq_num, irq_start, |
Heiko Stuebner | 5424f21 | 2013-02-12 10:12:04 -0800 | [diff] [blame] | 591 | 0, &s3c24xx_irq_ops, |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 592 | intc); |
| 593 | if (!intc->domain) { |
| 594 | pr_err("irq: could not create irq-domain\n"); |
| 595 | ret = -EINVAL; |
| 596 | goto err; |
| 597 | } |
| 598 | |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 599 | set_handle_irq(s3c24xx_handle_irq); |
| 600 | |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 601 | return intc; |
| 602 | |
| 603 | err: |
| 604 | kfree(intc); |
| 605 | return ERR_PTR(ret); |
| 606 | } |
Ben Dooks | 229fd8f | 2009-08-03 17:26:57 +0100 | [diff] [blame] | 607 | |
Heiko Stuebner | f182aa1 | 2013-03-07 12:38:19 +0900 | [diff] [blame] | 608 | static struct s3c_irq_data init_eint[32] = { |
| 609 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 610 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 611 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 612 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 613 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT4 */ |
| 614 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT5 */ |
| 615 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT6 */ |
| 616 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT7 */ |
| 617 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT8 */ |
| 618 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT9 */ |
| 619 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT10 */ |
| 620 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT11 */ |
| 621 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT12 */ |
| 622 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT13 */ |
| 623 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT14 */ |
| 624 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT15 */ |
| 625 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT16 */ |
| 626 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT17 */ |
| 627 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT18 */ |
| 628 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT19 */ |
| 629 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT20 */ |
| 630 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT21 */ |
| 631 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT22 */ |
| 632 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT23 */ |
| 633 | }; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 634 | |
Heiko Stuebner | f182aa1 | 2013-03-07 12:38:19 +0900 | [diff] [blame] | 635 | #ifdef CONFIG_CPU_S3C2410 |
| 636 | static struct s3c_irq_data init_s3c2410base[32] = { |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 637 | { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */ |
| 638 | { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */ |
| 639 | { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */ |
| 640 | { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */ |
| 641 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */ |
| 642 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */ |
| 643 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 644 | { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */ |
| 645 | { .type = S3C_IRQTYPE_EDGE, }, /* TICK */ |
| 646 | { .type = S3C_IRQTYPE_EDGE, }, /* WDT */ |
| 647 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */ |
| 648 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */ |
| 649 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */ |
| 650 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */ |
| 651 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */ |
| 652 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */ |
| 653 | { .type = S3C_IRQTYPE_EDGE, }, /* LCD */ |
| 654 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */ |
| 655 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */ |
| 656 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */ |
| 657 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */ |
| 658 | { .type = S3C_IRQTYPE_EDGE, }, /* SDI */ |
| 659 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */ |
| 660 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */ |
| 661 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 662 | { .type = S3C_IRQTYPE_EDGE, }, /* USBD */ |
| 663 | { .type = S3C_IRQTYPE_EDGE, }, /* USBH */ |
| 664 | { .type = S3C_IRQTYPE_EDGE, }, /* IIC */ |
| 665 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */ |
| 666 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */ |
| 667 | { .type = S3C_IRQTYPE_EDGE, }, /* RTC */ |
| 668 | { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */ |
| 669 | }; |
| 670 | |
Heiko Stuebner | f182aa1 | 2013-03-07 12:38:19 +0900 | [diff] [blame] | 671 | static struct s3c_irq_data init_s3c2410subint[32] = { |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 672 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */ |
| 673 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */ |
| 674 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */ |
| 675 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */ |
| 676 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */ |
| 677 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */ |
| 678 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */ |
| 679 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */ |
| 680 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */ |
| 681 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */ |
| 682 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */ |
| 683 | }; |
| 684 | |
Heiko Stuebner | f182aa1 | 2013-03-07 12:38:19 +0900 | [diff] [blame] | 685 | void __init s3c2410_init_irq(void) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 686 | { |
Ben Dooks | 229fd8f | 2009-08-03 17:26:57 +0100 | [diff] [blame] | 687 | #ifdef CONFIG_FIQ |
Shawn Guo | bc89663 | 2012-06-28 14:42:08 +0800 | [diff] [blame] | 688 | init_FIQ(FIQ_START); |
Ben Dooks | 229fd8f | 2009-08-03 17:26:57 +0100 | [diff] [blame] | 689 | #endif |
| 690 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 691 | s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2410base[0], NULL, |
| 692 | 0x4a000000); |
| 693 | if (IS_ERR(s3c_intc[0])) { |
Heiko Stuebner | 1f629b7 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 694 | pr_err("irq: could not create main interrupt controller\n"); |
| 695 | return; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 696 | } |
| 697 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 698 | s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2410subint[0], |
| 699 | s3c_intc[0], 0x4a000018); |
| 700 | s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 701 | } |
Heiko Stuebner | f182aa1 | 2013-03-07 12:38:19 +0900 | [diff] [blame] | 702 | #endif |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 703 | |
Heiko Stuebner | d3d5a2c | 2013-02-12 10:09:13 -0800 | [diff] [blame] | 704 | #ifdef CONFIG_CPU_S3C2412 |
Heiko Stuebner | 4245944 | 2013-02-12 10:09:21 -0800 | [diff] [blame] | 705 | static struct s3c_irq_data init_s3c2412base[32] = { |
Heiko Stuebner | 1c8408e | 2013-02-12 10:12:09 -0800 | [diff] [blame] | 706 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT0 */ |
| 707 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT1 */ |
| 708 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT2 */ |
| 709 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT3 */ |
Heiko Stuebner | 4245944 | 2013-02-12 10:09:21 -0800 | [diff] [blame] | 710 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */ |
| 711 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */ |
| 712 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 713 | { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */ |
| 714 | { .type = S3C_IRQTYPE_EDGE, }, /* TICK */ |
| 715 | { .type = S3C_IRQTYPE_EDGE, }, /* WDT */ |
| 716 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */ |
| 717 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */ |
| 718 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */ |
| 719 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */ |
| 720 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */ |
| 721 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */ |
| 722 | { .type = S3C_IRQTYPE_EDGE, }, /* LCD */ |
| 723 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */ |
| 724 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */ |
| 725 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */ |
| 726 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */ |
| 727 | { .type = S3C_IRQTYPE_LEVEL, }, /* SDI/CF */ |
| 728 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */ |
| 729 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */ |
| 730 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 731 | { .type = S3C_IRQTYPE_EDGE, }, /* USBD */ |
| 732 | { .type = S3C_IRQTYPE_EDGE, }, /* USBH */ |
| 733 | { .type = S3C_IRQTYPE_EDGE, }, /* IIC */ |
| 734 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */ |
| 735 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */ |
| 736 | { .type = S3C_IRQTYPE_EDGE, }, /* RTC */ |
| 737 | { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */ |
| 738 | }; |
Heiko Stuebner | d3d5a2c | 2013-02-12 10:09:13 -0800 | [diff] [blame] | 739 | |
Heiko Stuebner | 1c8408e | 2013-02-12 10:12:09 -0800 | [diff] [blame] | 740 | static struct s3c_irq_data init_s3c2412eint[32] = { |
| 741 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 0 }, /* EINT0 */ |
| 742 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 1 }, /* EINT1 */ |
| 743 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 2 }, /* EINT2 */ |
| 744 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 3 }, /* EINT3 */ |
| 745 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT4 */ |
| 746 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT5 */ |
| 747 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT6 */ |
| 748 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 4 }, /* EINT7 */ |
| 749 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT8 */ |
| 750 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT9 */ |
| 751 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT10 */ |
| 752 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT11 */ |
| 753 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT12 */ |
| 754 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT13 */ |
| 755 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT14 */ |
| 756 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT15 */ |
| 757 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT16 */ |
| 758 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT17 */ |
| 759 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT18 */ |
| 760 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT19 */ |
| 761 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT20 */ |
| 762 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT21 */ |
| 763 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT22 */ |
| 764 | { .type = S3C_IRQTYPE_EINT, .parent_irq = 5 }, /* EINT23 */ |
| 765 | }; |
| 766 | |
Heiko Stuebner | 4245944 | 2013-02-12 10:09:21 -0800 | [diff] [blame] | 767 | static struct s3c_irq_data init_s3c2412subint[32] = { |
| 768 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */ |
| 769 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */ |
| 770 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */ |
| 771 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */ |
| 772 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */ |
| 773 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */ |
| 774 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */ |
| 775 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */ |
| 776 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */ |
| 777 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */ |
| 778 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */ |
| 779 | { .type = S3C_IRQTYPE_NONE, }, |
| 780 | { .type = S3C_IRQTYPE_NONE, }, |
| 781 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 21 }, /* SDI */ |
| 782 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 21 }, /* CF */ |
| 783 | }; |
Heiko Stuebner | d3d5a2c | 2013-02-12 10:09:13 -0800 | [diff] [blame] | 784 | |
Arnd Bergmann | bc8fd90 | 2013-04-25 16:49:05 +0200 | [diff] [blame] | 785 | void __init s3c2412_init_irq(void) |
Heiko Stuebner | d3d5a2c | 2013-02-12 10:09:13 -0800 | [diff] [blame] | 786 | { |
Heiko Stuebner | 4245944 | 2013-02-12 10:09:21 -0800 | [diff] [blame] | 787 | pr_info("S3C2412: IRQ Support\n"); |
| 788 | |
| 789 | #ifdef CONFIG_FIQ |
| 790 | init_FIQ(FIQ_START); |
| 791 | #endif |
| 792 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 793 | s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2412base[0], NULL, |
| 794 | 0x4a000000); |
| 795 | if (IS_ERR(s3c_intc[0])) { |
Heiko Stuebner | 4245944 | 2013-02-12 10:09:21 -0800 | [diff] [blame] | 796 | pr_err("irq: could not create main interrupt controller\n"); |
| 797 | return; |
| 798 | } |
| 799 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 800 | s3c24xx_init_intc(NULL, &init_s3c2412eint[0], s3c_intc[0], 0x560000a4); |
| 801 | s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2412subint[0], |
| 802 | s3c_intc[0], 0x4a000018); |
Heiko Stuebner | d3d5a2c | 2013-02-12 10:09:13 -0800 | [diff] [blame] | 803 | } |
Heiko Stuebner | d3d5a2c | 2013-02-12 10:09:13 -0800 | [diff] [blame] | 804 | #endif |
| 805 | |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 806 | #ifdef CONFIG_CPU_S3C2416 |
Heiko Stuebner | 20f6c78 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 807 | static struct s3c_irq_data init_s3c2416base[32] = { |
| 808 | { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */ |
| 809 | { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */ |
| 810 | { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */ |
| 811 | { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */ |
| 812 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */ |
| 813 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */ |
| 814 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 815 | { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */ |
| 816 | { .type = S3C_IRQTYPE_EDGE, }, /* TICK */ |
| 817 | { .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */ |
| 818 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */ |
| 819 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */ |
| 820 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */ |
| 821 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */ |
| 822 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */ |
| 823 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */ |
| 824 | { .type = S3C_IRQTYPE_LEVEL, }, /* LCD */ |
| 825 | { .type = S3C_IRQTYPE_LEVEL, }, /* DMA */ |
| 826 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART3 */ |
| 827 | { .type = S3C_IRQTYPE_NONE, }, /* reserved */ |
| 828 | { .type = S3C_IRQTYPE_EDGE, }, /* SDI1 */ |
| 829 | { .type = S3C_IRQTYPE_EDGE, }, /* SDI0 */ |
| 830 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */ |
| 831 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */ |
| 832 | { .type = S3C_IRQTYPE_EDGE, }, /* NAND */ |
| 833 | { .type = S3C_IRQTYPE_EDGE, }, /* USBD */ |
| 834 | { .type = S3C_IRQTYPE_EDGE, }, /* USBH */ |
| 835 | { .type = S3C_IRQTYPE_EDGE, }, /* IIC */ |
| 836 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */ |
| 837 | { .type = S3C_IRQTYPE_NONE, }, |
| 838 | { .type = S3C_IRQTYPE_EDGE, }, /* RTC */ |
| 839 | { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */ |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 840 | }; |
| 841 | |
Heiko Stuebner | 20f6c78 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 842 | static struct s3c_irq_data init_s3c2416subint[32] = { |
| 843 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */ |
| 844 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */ |
| 845 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */ |
| 846 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */ |
| 847 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */ |
| 848 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */ |
| 849 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */ |
| 850 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */ |
| 851 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */ |
| 852 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */ |
| 853 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */ |
| 854 | { .type = S3C_IRQTYPE_NONE }, /* reserved */ |
| 855 | { .type = S3C_IRQTYPE_NONE }, /* reserved */ |
| 856 | { .type = S3C_IRQTYPE_NONE }, /* reserved */ |
| 857 | { .type = S3C_IRQTYPE_NONE }, /* reserved */ |
| 858 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD2 */ |
| 859 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD3 */ |
| 860 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD4 */ |
| 861 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA0 */ |
| 862 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA1 */ |
| 863 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA2 */ |
| 864 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA3 */ |
| 865 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA4 */ |
| 866 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA5 */ |
| 867 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-RX */ |
| 868 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-TX */ |
| 869 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-ERR */ |
| 870 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */ |
| 871 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */ |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 872 | }; |
| 873 | |
Heiko Stuebner | 20f6c78 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 874 | static struct s3c_irq_data init_s3c2416_second[32] = { |
| 875 | { .type = S3C_IRQTYPE_EDGE }, /* 2D */ |
Heiko Stuebner | 1ebc7e8 | 2013-04-04 14:53:41 +0900 | [diff] [blame] | 876 | { .type = S3C_IRQTYPE_NONE }, /* reserved */ |
Heiko Stuebner | 20f6c78 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 877 | { .type = S3C_IRQTYPE_NONE }, /* reserved */ |
| 878 | { .type = S3C_IRQTYPE_NONE }, /* reserved */ |
| 879 | { .type = S3C_IRQTYPE_EDGE }, /* PCM0 */ |
Heiko Stuebner | 1ebc7e8 | 2013-04-04 14:53:41 +0900 | [diff] [blame] | 880 | { .type = S3C_IRQTYPE_NONE }, /* reserved */ |
Heiko Stuebner | 20f6c78 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 881 | { .type = S3C_IRQTYPE_EDGE }, /* I2S0 */ |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 882 | }; |
| 883 | |
Heiko Stuebner | 4a282dd | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 884 | void __init s3c2416_init_irq(void) |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 885 | { |
Heiko Stuebner | 4a282dd | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 886 | pr_info("S3C2416: IRQ Support\n"); |
| 887 | |
Heiko Stuebner | 20f6c78 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 888 | #ifdef CONFIG_FIQ |
| 889 | init_FIQ(FIQ_START); |
| 890 | #endif |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 891 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 892 | s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2416base[0], NULL, |
| 893 | 0x4a000000); |
| 894 | if (IS_ERR(s3c_intc[0])) { |
Heiko Stuebner | 20f6c78 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 895 | pr_err("irq: could not create main interrupt controller\n"); |
| 896 | return; |
| 897 | } |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 898 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 899 | s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4); |
| 900 | s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2416subint[0], |
| 901 | s3c_intc[0], 0x4a000018); |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 902 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 903 | s3c_intc[2] = s3c24xx_init_intc(NULL, &init_s3c2416_second[0], |
| 904 | NULL, 0x4a000040); |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 905 | } |
| 906 | |
Heiko Stuebner | ef602eb | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 907 | #endif |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 908 | |
Heiko Stuebner | f030167 | 2013-02-12 09:59:35 -0800 | [diff] [blame] | 909 | #ifdef CONFIG_CPU_S3C2440 |
| 910 | static struct s3c_irq_data init_s3c2440base[32] = { |
| 911 | { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */ |
| 912 | { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */ |
| 913 | { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */ |
| 914 | { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */ |
| 915 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */ |
| 916 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */ |
| 917 | { .type = S3C_IRQTYPE_LEVEL, }, /* CAM */ |
| 918 | { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */ |
| 919 | { .type = S3C_IRQTYPE_EDGE, }, /* TICK */ |
| 920 | { .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */ |
| 921 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */ |
| 922 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */ |
| 923 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */ |
| 924 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */ |
| 925 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */ |
| 926 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */ |
| 927 | { .type = S3C_IRQTYPE_EDGE, }, /* LCD */ |
| 928 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */ |
| 929 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */ |
| 930 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */ |
| 931 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */ |
| 932 | { .type = S3C_IRQTYPE_EDGE, }, /* SDI */ |
| 933 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */ |
| 934 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */ |
| 935 | { .type = S3C_IRQTYPE_LEVEL, }, /* NFCON */ |
| 936 | { .type = S3C_IRQTYPE_EDGE, }, /* USBD */ |
| 937 | { .type = S3C_IRQTYPE_EDGE, }, /* USBH */ |
| 938 | { .type = S3C_IRQTYPE_EDGE, }, /* IIC */ |
| 939 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */ |
| 940 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */ |
| 941 | { .type = S3C_IRQTYPE_EDGE, }, /* RTC */ |
| 942 | { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */ |
Heiko Stuebner | 6f8d7ea | 2013-02-12 09:59:17 -0800 | [diff] [blame] | 943 | }; |
| 944 | |
Heiko Stuebner | f030167 | 2013-02-12 09:59:35 -0800 | [diff] [blame] | 945 | static struct s3c_irq_data init_s3c2440subint[32] = { |
| 946 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */ |
| 947 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */ |
| 948 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */ |
| 949 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */ |
| 950 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */ |
| 951 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */ |
| 952 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */ |
| 953 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */ |
| 954 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */ |
| 955 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */ |
| 956 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */ |
Heiko Stuebner | e2714f7 | 2013-04-04 14:53:37 +0900 | [diff] [blame] | 957 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_C */ |
| 958 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_P */ |
Heiko Stuebner | f030167 | 2013-02-12 09:59:35 -0800 | [diff] [blame] | 959 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */ |
| 960 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */ |
Heiko Stuebner | 2286cf4 | 2013-02-12 09:59:24 -0800 | [diff] [blame] | 961 | }; |
| 962 | |
Heiko Stuebner | 7cefed5 | 2013-02-12 09:59:27 -0800 | [diff] [blame] | 963 | void __init s3c2440_init_irq(void) |
Heiko Stuebner | 2286cf4 | 2013-02-12 09:59:24 -0800 | [diff] [blame] | 964 | { |
Heiko Stuebner | f030167 | 2013-02-12 09:59:35 -0800 | [diff] [blame] | 965 | pr_info("S3C2440: IRQ Support\n"); |
Heiko Stuebner | 2286cf4 | 2013-02-12 09:59:24 -0800 | [diff] [blame] | 966 | |
Heiko Stuebner | f030167 | 2013-02-12 09:59:35 -0800 | [diff] [blame] | 967 | #ifdef CONFIG_FIQ |
| 968 | init_FIQ(FIQ_START); |
| 969 | #endif |
Heiko Stuebner | ce6c164 | 2013-02-12 09:59:20 -0800 | [diff] [blame] | 970 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 971 | s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2440base[0], NULL, |
| 972 | 0x4a000000); |
| 973 | if (IS_ERR(s3c_intc[0])) { |
Heiko Stuebner | f030167 | 2013-02-12 09:59:35 -0800 | [diff] [blame] | 974 | pr_err("irq: could not create main interrupt controller\n"); |
| 975 | return; |
Heiko Stuebner | 6f8d7ea | 2013-02-12 09:59:17 -0800 | [diff] [blame] | 976 | } |
Heiko Stuebner | 7cefed5 | 2013-02-12 09:59:27 -0800 | [diff] [blame] | 977 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 978 | s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4); |
| 979 | s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2440subint[0], |
| 980 | s3c_intc[0], 0x4a000018); |
Heiko Stuebner | 6f8d7ea | 2013-02-12 09:59:17 -0800 | [diff] [blame] | 981 | } |
Heiko Stuebner | ce6c164 | 2013-02-12 09:59:20 -0800 | [diff] [blame] | 982 | #endif |
Heiko Stuebner | 6f8d7ea | 2013-02-12 09:59:17 -0800 | [diff] [blame] | 983 | |
Heiko Stuebner | ce6c164 | 2013-02-12 09:59:20 -0800 | [diff] [blame] | 984 | #ifdef CONFIG_CPU_S3C2442 |
Heiko Stuebner | 70644ad | 2013-02-12 09:59:31 -0800 | [diff] [blame] | 985 | static struct s3c_irq_data init_s3c2442base[32] = { |
| 986 | { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */ |
| 987 | { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */ |
| 988 | { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */ |
| 989 | { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */ |
| 990 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */ |
| 991 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */ |
| 992 | { .type = S3C_IRQTYPE_LEVEL, }, /* CAM */ |
| 993 | { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */ |
| 994 | { .type = S3C_IRQTYPE_EDGE, }, /* TICK */ |
| 995 | { .type = S3C_IRQTYPE_EDGE, }, /* WDT */ |
| 996 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */ |
| 997 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */ |
| 998 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */ |
| 999 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */ |
| 1000 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */ |
| 1001 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */ |
| 1002 | { .type = S3C_IRQTYPE_EDGE, }, /* LCD */ |
| 1003 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA0 */ |
| 1004 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA1 */ |
| 1005 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA2 */ |
| 1006 | { .type = S3C_IRQTYPE_EDGE, }, /* DMA3 */ |
| 1007 | { .type = S3C_IRQTYPE_EDGE, }, /* SDI */ |
| 1008 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */ |
| 1009 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */ |
| 1010 | { .type = S3C_IRQTYPE_LEVEL, }, /* NFCON */ |
| 1011 | { .type = S3C_IRQTYPE_EDGE, }, /* USBD */ |
| 1012 | { .type = S3C_IRQTYPE_EDGE, }, /* USBH */ |
| 1013 | { .type = S3C_IRQTYPE_EDGE, }, /* IIC */ |
| 1014 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */ |
| 1015 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */ |
| 1016 | { .type = S3C_IRQTYPE_EDGE, }, /* RTC */ |
| 1017 | { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */ |
| 1018 | }; |
| 1019 | |
| 1020 | static struct s3c_irq_data init_s3c2442subint[32] = { |
| 1021 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */ |
| 1022 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */ |
| 1023 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */ |
| 1024 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */ |
| 1025 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */ |
| 1026 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */ |
| 1027 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */ |
| 1028 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */ |
| 1029 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */ |
| 1030 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */ |
| 1031 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */ |
Heiko Stuebner | e2714f7 | 2013-04-04 14:53:37 +0900 | [diff] [blame] | 1032 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_C */ |
| 1033 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_P */ |
Heiko Stuebner | 70644ad | 2013-02-12 09:59:31 -0800 | [diff] [blame] | 1034 | }; |
| 1035 | |
Heiko Stuebner | ce6c164 | 2013-02-12 09:59:20 -0800 | [diff] [blame] | 1036 | void __init s3c2442_init_irq(void) |
Heiko Stuebner | 6f8d7ea | 2013-02-12 09:59:17 -0800 | [diff] [blame] | 1037 | { |
Heiko Stuebner | 70644ad | 2013-02-12 09:59:31 -0800 | [diff] [blame] | 1038 | pr_info("S3C2442: IRQ Support\n"); |
Heiko Stuebner | ce6c164 | 2013-02-12 09:59:20 -0800 | [diff] [blame] | 1039 | |
Heiko Stuebner | 70644ad | 2013-02-12 09:59:31 -0800 | [diff] [blame] | 1040 | #ifdef CONFIG_FIQ |
| 1041 | init_FIQ(FIQ_START); |
| 1042 | #endif |
Heiko Stuebner | ce6c164 | 2013-02-12 09:59:20 -0800 | [diff] [blame] | 1043 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 1044 | s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2442base[0], NULL, |
| 1045 | 0x4a000000); |
| 1046 | if (IS_ERR(s3c_intc[0])) { |
Heiko Stuebner | 70644ad | 2013-02-12 09:59:31 -0800 | [diff] [blame] | 1047 | pr_err("irq: could not create main interrupt controller\n"); |
| 1048 | return; |
Heiko Stuebner | ce6c164 | 2013-02-12 09:59:20 -0800 | [diff] [blame] | 1049 | } |
Heiko Stuebner | 70644ad | 2013-02-12 09:59:31 -0800 | [diff] [blame] | 1050 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 1051 | s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4); |
| 1052 | s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2442subint[0], |
| 1053 | s3c_intc[0], 0x4a000018); |
Heiko Stuebner | 6f8d7ea | 2013-02-12 09:59:17 -0800 | [diff] [blame] | 1054 | } |
Heiko Stuebner | ce6c164 | 2013-02-12 09:59:20 -0800 | [diff] [blame] | 1055 | #endif |
Heiko Stuebner | 6f8d7ea | 2013-02-12 09:59:17 -0800 | [diff] [blame] | 1056 | |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1057 | #ifdef CONFIG_CPU_S3C2443 |
Heiko Stuebner | f44ddba | 2013-01-29 10:25:23 -0800 | [diff] [blame] | 1058 | static struct s3c_irq_data init_s3c2443base[32] = { |
| 1059 | { .type = S3C_IRQTYPE_EINT, }, /* EINT0 */ |
| 1060 | { .type = S3C_IRQTYPE_EINT, }, /* EINT1 */ |
| 1061 | { .type = S3C_IRQTYPE_EINT, }, /* EINT2 */ |
| 1062 | { .type = S3C_IRQTYPE_EINT, }, /* EINT3 */ |
| 1063 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT4to7 */ |
| 1064 | { .type = S3C_IRQTYPE_LEVEL, }, /* EINT8to23 */ |
| 1065 | { .type = S3C_IRQTYPE_LEVEL, }, /* CAM */ |
| 1066 | { .type = S3C_IRQTYPE_EDGE, }, /* nBATT_FLT */ |
| 1067 | { .type = S3C_IRQTYPE_EDGE, }, /* TICK */ |
| 1068 | { .type = S3C_IRQTYPE_LEVEL, }, /* WDT/AC97 */ |
| 1069 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER0 */ |
| 1070 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER1 */ |
| 1071 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER2 */ |
| 1072 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER3 */ |
| 1073 | { .type = S3C_IRQTYPE_EDGE, }, /* TIMER4 */ |
| 1074 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART2 */ |
| 1075 | { .type = S3C_IRQTYPE_LEVEL, }, /* LCD */ |
| 1076 | { .type = S3C_IRQTYPE_LEVEL, }, /* DMA */ |
| 1077 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART3 */ |
| 1078 | { .type = S3C_IRQTYPE_EDGE, }, /* CFON */ |
| 1079 | { .type = S3C_IRQTYPE_EDGE, }, /* SDI1 */ |
| 1080 | { .type = S3C_IRQTYPE_EDGE, }, /* SDI0 */ |
| 1081 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI0 */ |
| 1082 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART1 */ |
| 1083 | { .type = S3C_IRQTYPE_EDGE, }, /* NAND */ |
| 1084 | { .type = S3C_IRQTYPE_EDGE, }, /* USBD */ |
| 1085 | { .type = S3C_IRQTYPE_EDGE, }, /* USBH */ |
| 1086 | { .type = S3C_IRQTYPE_EDGE, }, /* IIC */ |
| 1087 | { .type = S3C_IRQTYPE_LEVEL, }, /* UART0 */ |
| 1088 | { .type = S3C_IRQTYPE_EDGE, }, /* SPI1 */ |
| 1089 | { .type = S3C_IRQTYPE_EDGE, }, /* RTC */ |
| 1090 | { .type = S3C_IRQTYPE_LEVEL, }, /* ADCPARENT */ |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1091 | }; |
| 1092 | |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1093 | |
Heiko Stuebner | f44ddba | 2013-01-29 10:25:23 -0800 | [diff] [blame] | 1094 | static struct s3c_irq_data init_s3c2443subint[32] = { |
| 1095 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-RX */ |
| 1096 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-TX */ |
| 1097 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 28 }, /* UART0-ERR */ |
| 1098 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-RX */ |
| 1099 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-TX */ |
| 1100 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 23 }, /* UART1-ERR */ |
| 1101 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-RX */ |
| 1102 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-TX */ |
| 1103 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 15 }, /* UART2-ERR */ |
| 1104 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* TC */ |
| 1105 | { .type = S3C_IRQTYPE_EDGE, .parent_irq = 31 }, /* ADC */ |
| 1106 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_C */ |
| 1107 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 6 }, /* CAM_P */ |
| 1108 | { .type = S3C_IRQTYPE_NONE }, /* reserved */ |
| 1109 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD1 */ |
| 1110 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD2 */ |
| 1111 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD3 */ |
| 1112 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 16 }, /* LCD4 */ |
| 1113 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA0 */ |
| 1114 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA1 */ |
| 1115 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA2 */ |
| 1116 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA3 */ |
| 1117 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA4 */ |
| 1118 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 17 }, /* DMA5 */ |
| 1119 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-RX */ |
| 1120 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-TX */ |
| 1121 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 18 }, /* UART3-ERR */ |
| 1122 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* WDT */ |
| 1123 | { .type = S3C_IRQTYPE_LEVEL, .parent_irq = 9 }, /* AC97 */ |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1124 | }; |
| 1125 | |
Heiko Stuebner | b499b7a | 2013-01-29 10:25:23 -0800 | [diff] [blame] | 1126 | void __init s3c2443_init_irq(void) |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1127 | { |
Heiko Stuebner | b499b7a | 2013-01-29 10:25:23 -0800 | [diff] [blame] | 1128 | pr_info("S3C2443: IRQ Support\n"); |
| 1129 | |
Heiko Stuebner | f44ddba | 2013-01-29 10:25:23 -0800 | [diff] [blame] | 1130 | #ifdef CONFIG_FIQ |
| 1131 | init_FIQ(FIQ_START); |
| 1132 | #endif |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1133 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 1134 | s3c_intc[0] = s3c24xx_init_intc(NULL, &init_s3c2443base[0], NULL, |
| 1135 | 0x4a000000); |
| 1136 | if (IS_ERR(s3c_intc[0])) { |
Heiko Stuebner | f44ddba | 2013-01-29 10:25:23 -0800 | [diff] [blame] | 1137 | pr_err("irq: could not create main interrupt controller\n"); |
| 1138 | return; |
| 1139 | } |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1140 | |
Heiko Stuebner | 658dc8f | 2013-04-04 14:53:49 +0900 | [diff] [blame] | 1141 | s3c24xx_init_intc(NULL, &init_eint[0], s3c_intc[0], 0x560000a4); |
| 1142 | s3c_intc[1] = s3c24xx_init_intc(NULL, &init_s3c2443subint[0], |
| 1143 | s3c_intc[0], 0x4a000018); |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1144 | } |
Heiko Stuebner | 6b62891 | 2013-01-29 10:25:22 -0800 | [diff] [blame] | 1145 | #endif |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 1146 | |
| 1147 | #ifdef CONFIG_OF |
| 1148 | static int s3c24xx_irq_map_of(struct irq_domain *h, unsigned int virq, |
| 1149 | irq_hw_number_t hw) |
| 1150 | { |
| 1151 | unsigned int ctrl_num = hw / 32; |
| 1152 | unsigned int intc_hw = hw % 32; |
| 1153 | struct s3c_irq_intc *intc = s3c_intc[ctrl_num]; |
| 1154 | struct s3c_irq_intc *parent_intc = intc->parent; |
| 1155 | struct s3c_irq_data *irq_data = &intc->irqs[intc_hw]; |
| 1156 | |
| 1157 | /* attach controller pointer to irq_data */ |
| 1158 | irq_data->intc = intc; |
| 1159 | irq_data->offset = intc_hw; |
| 1160 | |
| 1161 | if (!parent_intc) |
| 1162 | irq_set_chip_and_handler(virq, &s3c_irq_chip, handle_edge_irq); |
| 1163 | else |
| 1164 | irq_set_chip_and_handler(virq, &s3c_irq_level_chip, |
| 1165 | handle_edge_irq); |
| 1166 | |
| 1167 | irq_set_chip_data(virq, irq_data); |
| 1168 | |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 1169 | return 0; |
| 1170 | } |
| 1171 | |
| 1172 | /* Translate our of irq notation |
| 1173 | * format: <ctrl_num ctrl_irq parent_irq type> |
| 1174 | */ |
| 1175 | static int s3c24xx_irq_xlate_of(struct irq_domain *d, struct device_node *n, |
| 1176 | const u32 *intspec, unsigned int intsize, |
| 1177 | irq_hw_number_t *out_hwirq, unsigned int *out_type) |
| 1178 | { |
| 1179 | struct s3c_irq_intc *intc; |
| 1180 | struct s3c_irq_intc *parent_intc; |
| 1181 | struct s3c_irq_data *irq_data; |
| 1182 | struct s3c_irq_data *parent_irq_data; |
| 1183 | int irqno; |
| 1184 | |
| 1185 | if (WARN_ON(intsize < 4)) |
| 1186 | return -EINVAL; |
| 1187 | |
| 1188 | if (intspec[0] > 2 || !s3c_intc[intspec[0]]) { |
| 1189 | pr_err("controller number %d invalid\n", intspec[0]); |
| 1190 | return -EINVAL; |
| 1191 | } |
| 1192 | intc = s3c_intc[intspec[0]]; |
| 1193 | |
| 1194 | *out_hwirq = intspec[0] * 32 + intspec[2]; |
| 1195 | *out_type = intspec[3] & IRQ_TYPE_SENSE_MASK; |
| 1196 | |
| 1197 | parent_intc = intc->parent; |
| 1198 | if (parent_intc) { |
| 1199 | irq_data = &intc->irqs[intspec[2]]; |
| 1200 | irq_data->parent_irq = intspec[1]; |
| 1201 | parent_irq_data = &parent_intc->irqs[irq_data->parent_irq]; |
| 1202 | parent_irq_data->sub_intc = intc; |
| 1203 | parent_irq_data->sub_bits |= (1UL << intspec[2]); |
| 1204 | |
| 1205 | /* parent_intc is always s3c_intc[0], so no offset */ |
| 1206 | irqno = irq_create_mapping(parent_intc->domain, intspec[1]); |
| 1207 | if (irqno < 0) { |
| 1208 | pr_err("irq: could not map parent interrupt\n"); |
| 1209 | return irqno; |
| 1210 | } |
| 1211 | |
| 1212 | irq_set_chained_handler(irqno, s3c_irq_demux); |
| 1213 | } |
| 1214 | |
| 1215 | return 0; |
| 1216 | } |
| 1217 | |
Krzysztof Kozlowski | 9600973 | 2015-04-27 21:54:24 +0900 | [diff] [blame] | 1218 | static const struct irq_domain_ops s3c24xx_irq_ops_of = { |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 1219 | .map = s3c24xx_irq_map_of, |
| 1220 | .xlate = s3c24xx_irq_xlate_of, |
| 1221 | }; |
| 1222 | |
| 1223 | struct s3c24xx_irq_of_ctrl { |
| 1224 | char *name; |
| 1225 | unsigned long offset; |
| 1226 | struct s3c_irq_intc **handle; |
| 1227 | struct s3c_irq_intc **parent; |
| 1228 | struct irq_domain_ops *ops; |
| 1229 | }; |
| 1230 | |
| 1231 | static int __init s3c_init_intc_of(struct device_node *np, |
| 1232 | struct device_node *interrupt_parent, |
| 1233 | struct s3c24xx_irq_of_ctrl *s3c_ctrl, int num_ctrl) |
| 1234 | { |
| 1235 | struct s3c_irq_intc *intc; |
| 1236 | struct s3c24xx_irq_of_ctrl *ctrl; |
| 1237 | struct irq_domain *domain; |
| 1238 | void __iomem *reg_base; |
| 1239 | int i; |
| 1240 | |
| 1241 | reg_base = of_iomap(np, 0); |
| 1242 | if (!reg_base) { |
| 1243 | pr_err("irq-s3c24xx: could not map irq registers\n"); |
| 1244 | return -EINVAL; |
| 1245 | } |
| 1246 | |
| 1247 | domain = irq_domain_add_linear(np, num_ctrl * 32, |
| 1248 | &s3c24xx_irq_ops_of, NULL); |
| 1249 | if (!domain) { |
| 1250 | pr_err("irq: could not create irq-domain\n"); |
| 1251 | return -EINVAL; |
| 1252 | } |
| 1253 | |
| 1254 | for (i = 0; i < num_ctrl; i++) { |
| 1255 | ctrl = &s3c_ctrl[i]; |
| 1256 | |
| 1257 | pr_debug("irq: found controller %s\n", ctrl->name); |
| 1258 | |
| 1259 | intc = kzalloc(sizeof(struct s3c_irq_intc), GFP_KERNEL); |
| 1260 | if (!intc) |
| 1261 | return -ENOMEM; |
| 1262 | |
| 1263 | intc->domain = domain; |
| 1264 | intc->irqs = kzalloc(sizeof(struct s3c_irq_data) * 32, |
| 1265 | GFP_KERNEL); |
| 1266 | if (!intc->irqs) { |
| 1267 | kfree(intc); |
| 1268 | return -ENOMEM; |
| 1269 | } |
| 1270 | |
| 1271 | if (ctrl->parent) { |
| 1272 | intc->reg_pending = reg_base + ctrl->offset; |
| 1273 | intc->reg_mask = reg_base + ctrl->offset + 0x4; |
| 1274 | |
| 1275 | if (*(ctrl->parent)) { |
| 1276 | intc->parent = *(ctrl->parent); |
| 1277 | } else { |
| 1278 | pr_warn("irq: parent of %s missing\n", |
| 1279 | ctrl->name); |
| 1280 | kfree(intc->irqs); |
| 1281 | kfree(intc); |
| 1282 | continue; |
| 1283 | } |
| 1284 | } else { |
| 1285 | intc->reg_pending = reg_base + ctrl->offset; |
| 1286 | intc->reg_mask = reg_base + ctrl->offset + 0x08; |
| 1287 | intc->reg_intpnd = reg_base + ctrl->offset + 0x10; |
| 1288 | } |
| 1289 | |
| 1290 | s3c24xx_clear_intc(intc); |
| 1291 | s3c_intc[i] = intc; |
| 1292 | } |
| 1293 | |
| 1294 | set_handle_irq(s3c24xx_handle_irq); |
| 1295 | |
| 1296 | return 0; |
| 1297 | } |
| 1298 | |
| 1299 | static struct s3c24xx_irq_of_ctrl s3c2410_ctrl[] = { |
| 1300 | { |
| 1301 | .name = "intc", |
| 1302 | .offset = 0, |
| 1303 | }, { |
| 1304 | .name = "subintc", |
| 1305 | .offset = 0x18, |
| 1306 | .parent = &s3c_intc[0], |
| 1307 | } |
| 1308 | }; |
| 1309 | |
| 1310 | int __init s3c2410_init_intc_of(struct device_node *np, |
Rob Herring | 4f41083 | 2014-05-12 11:35:52 -0500 | [diff] [blame] | 1311 | struct device_node *interrupt_parent) |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 1312 | { |
| 1313 | return s3c_init_intc_of(np, interrupt_parent, |
| 1314 | s3c2410_ctrl, ARRAY_SIZE(s3c2410_ctrl)); |
| 1315 | } |
| 1316 | IRQCHIP_DECLARE(s3c2410_irq, "samsung,s3c2410-irq", s3c2410_init_intc_of); |
| 1317 | |
| 1318 | static struct s3c24xx_irq_of_ctrl s3c2416_ctrl[] = { |
| 1319 | { |
| 1320 | .name = "intc", |
| 1321 | .offset = 0, |
| 1322 | }, { |
| 1323 | .name = "subintc", |
| 1324 | .offset = 0x18, |
| 1325 | .parent = &s3c_intc[0], |
| 1326 | }, { |
| 1327 | .name = "intc2", |
| 1328 | .offset = 0x40, |
| 1329 | } |
| 1330 | }; |
| 1331 | |
| 1332 | int __init s3c2416_init_intc_of(struct device_node *np, |
Rob Herring | 4f41083 | 2014-05-12 11:35:52 -0500 | [diff] [blame] | 1333 | struct device_node *interrupt_parent) |
Heiko Stuebner | f0774d4 | 2013-04-04 14:55:10 +0900 | [diff] [blame] | 1334 | { |
| 1335 | return s3c_init_intc_of(np, interrupt_parent, |
| 1336 | s3c2416_ctrl, ARRAY_SIZE(s3c2416_ctrl)); |
| 1337 | } |
| 1338 | IRQCHIP_DECLARE(s3c2416_irq, "samsung,s3c2416-irq", s3c2416_init_intc_of); |
| 1339 | #endif |