Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/plat-omap/gpio.c |
| 3 | * |
| 4 | * Support functions for OMAP GPIO |
| 5 | * |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 6 | * Copyright (C) 2003-2005 Nokia Corporation |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 7 | * Written by Juha Yrjölä <juha.yrjola@nokia.com> |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 8 | * |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 9 | * Copyright (C) 2009 Texas Instruments |
| 10 | * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> |
| 11 | * |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License version 2 as |
| 14 | * published by the Free Software Foundation. |
| 15 | */ |
| 16 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 17 | #include <linux/init.h> |
| 18 | #include <linux/module.h> |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 19 | #include <linux/interrupt.h> |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 20 | #include <linux/sysdev.h> |
| 21 | #include <linux/err.h> |
Russell King | f8ce254 | 2006-01-07 16:15:52 +0000 | [diff] [blame] | 22 | #include <linux/clk.h> |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 23 | #include <linux/io.h> |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 24 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 25 | #include <mach/hardware.h> |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 26 | #include <asm/irq.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 27 | #include <mach/irqs.h> |
| 28 | #include <mach/gpio.h> |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 29 | #include <asm/mach/irq.h> |
| 30 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 31 | /* |
| 32 | * OMAP1510 GPIO registers |
| 33 | */ |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 34 | #define OMAP1510_GPIO_BASE OMAP1_IO_ADDRESS(0xfffce000) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 35 | #define OMAP1510_GPIO_DATA_INPUT 0x00 |
| 36 | #define OMAP1510_GPIO_DATA_OUTPUT 0x04 |
| 37 | #define OMAP1510_GPIO_DIR_CONTROL 0x08 |
| 38 | #define OMAP1510_GPIO_INT_CONTROL 0x0c |
| 39 | #define OMAP1510_GPIO_INT_MASK 0x10 |
| 40 | #define OMAP1510_GPIO_INT_STATUS 0x14 |
| 41 | #define OMAP1510_GPIO_PIN_CONTROL 0x18 |
| 42 | |
| 43 | #define OMAP1510_IH_GPIO_BASE 64 |
| 44 | |
| 45 | /* |
| 46 | * OMAP1610 specific GPIO registers |
| 47 | */ |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 48 | #define OMAP1610_GPIO1_BASE OMAP1_IO_ADDRESS(0xfffbe400) |
| 49 | #define OMAP1610_GPIO2_BASE OMAP1_IO_ADDRESS(0xfffbec00) |
| 50 | #define OMAP1610_GPIO3_BASE OMAP1_IO_ADDRESS(0xfffbb400) |
| 51 | #define OMAP1610_GPIO4_BASE OMAP1_IO_ADDRESS(0xfffbbc00) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 52 | #define OMAP1610_GPIO_REVISION 0x0000 |
| 53 | #define OMAP1610_GPIO_SYSCONFIG 0x0010 |
| 54 | #define OMAP1610_GPIO_SYSSTATUS 0x0014 |
| 55 | #define OMAP1610_GPIO_IRQSTATUS1 0x0018 |
| 56 | #define OMAP1610_GPIO_IRQENABLE1 0x001c |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 57 | #define OMAP1610_GPIO_WAKEUPENABLE 0x0028 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 58 | #define OMAP1610_GPIO_DATAIN 0x002c |
| 59 | #define OMAP1610_GPIO_DATAOUT 0x0030 |
| 60 | #define OMAP1610_GPIO_DIRECTION 0x0034 |
| 61 | #define OMAP1610_GPIO_EDGE_CTRL1 0x0038 |
| 62 | #define OMAP1610_GPIO_EDGE_CTRL2 0x003c |
| 63 | #define OMAP1610_GPIO_CLEAR_IRQENABLE1 0x009c |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 64 | #define OMAP1610_GPIO_CLEAR_WAKEUPENA 0x00a8 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 65 | #define OMAP1610_GPIO_CLEAR_DATAOUT 0x00b0 |
| 66 | #define OMAP1610_GPIO_SET_IRQENABLE1 0x00dc |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 67 | #define OMAP1610_GPIO_SET_WAKEUPENA 0x00e8 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 68 | #define OMAP1610_GPIO_SET_DATAOUT 0x00f0 |
| 69 | |
| 70 | /* |
| 71 | * OMAP730 specific GPIO registers |
| 72 | */ |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 73 | #define OMAP730_GPIO1_BASE OMAP1_IO_ADDRESS(0xfffbc000) |
| 74 | #define OMAP730_GPIO2_BASE OMAP1_IO_ADDRESS(0xfffbc800) |
| 75 | #define OMAP730_GPIO3_BASE OMAP1_IO_ADDRESS(0xfffbd000) |
| 76 | #define OMAP730_GPIO4_BASE OMAP1_IO_ADDRESS(0xfffbd800) |
| 77 | #define OMAP730_GPIO5_BASE OMAP1_IO_ADDRESS(0xfffbe000) |
| 78 | #define OMAP730_GPIO6_BASE OMAP1_IO_ADDRESS(0xfffbe800) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 79 | #define OMAP730_GPIO_DATA_INPUT 0x00 |
| 80 | #define OMAP730_GPIO_DATA_OUTPUT 0x04 |
| 81 | #define OMAP730_GPIO_DIR_CONTROL 0x08 |
| 82 | #define OMAP730_GPIO_INT_CONTROL 0x0c |
| 83 | #define OMAP730_GPIO_INT_MASK 0x10 |
| 84 | #define OMAP730_GPIO_INT_STATUS 0x14 |
| 85 | |
Tony Lindgren | 6175556 | 2009-08-28 10:50:34 -0700 | [diff] [blame] | 86 | #define OMAP1_MPUIO_VBASE OMAP1_IO_ADDRESS(OMAP1_MPUIO_BASE) |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 87 | |
Zebediah C. McClure | 56739a6 | 2009-03-23 18:07:40 -0700 | [diff] [blame] | 88 | /* |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 89 | * omap24xx specific GPIO registers |
| 90 | */ |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 91 | #define OMAP242X_GPIO1_BASE OMAP2_IO_ADDRESS(0x48018000) |
| 92 | #define OMAP242X_GPIO2_BASE OMAP2_IO_ADDRESS(0x4801a000) |
| 93 | #define OMAP242X_GPIO3_BASE OMAP2_IO_ADDRESS(0x4801c000) |
| 94 | #define OMAP242X_GPIO4_BASE OMAP2_IO_ADDRESS(0x4801e000) |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 95 | |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 96 | #define OMAP243X_GPIO1_BASE OMAP2_IO_ADDRESS(0x4900C000) |
| 97 | #define OMAP243X_GPIO2_BASE OMAP2_IO_ADDRESS(0x4900E000) |
| 98 | #define OMAP243X_GPIO3_BASE OMAP2_IO_ADDRESS(0x49010000) |
| 99 | #define OMAP243X_GPIO4_BASE OMAP2_IO_ADDRESS(0x49012000) |
| 100 | #define OMAP243X_GPIO5_BASE OMAP2_IO_ADDRESS(0x480B6000) |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 101 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 102 | #define OMAP24XX_GPIO_REVISION 0x0000 |
| 103 | #define OMAP24XX_GPIO_SYSCONFIG 0x0010 |
| 104 | #define OMAP24XX_GPIO_SYSSTATUS 0x0014 |
| 105 | #define OMAP24XX_GPIO_IRQSTATUS1 0x0018 |
Hiroshi DOYU | bee7930 | 2006-09-25 12:41:46 +0300 | [diff] [blame] | 106 | #define OMAP24XX_GPIO_IRQSTATUS2 0x0028 |
| 107 | #define OMAP24XX_GPIO_IRQENABLE2 0x002c |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 108 | #define OMAP24XX_GPIO_IRQENABLE1 0x001c |
Tero Kristo | 723fdb7 | 2008-11-26 14:35:16 -0800 | [diff] [blame] | 109 | #define OMAP24XX_GPIO_WAKE_EN 0x0020 |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 110 | #define OMAP24XX_GPIO_CTRL 0x0030 |
| 111 | #define OMAP24XX_GPIO_OE 0x0034 |
| 112 | #define OMAP24XX_GPIO_DATAIN 0x0038 |
| 113 | #define OMAP24XX_GPIO_DATAOUT 0x003c |
| 114 | #define OMAP24XX_GPIO_LEVELDETECT0 0x0040 |
| 115 | #define OMAP24XX_GPIO_LEVELDETECT1 0x0044 |
| 116 | #define OMAP24XX_GPIO_RISINGDETECT 0x0048 |
| 117 | #define OMAP24XX_GPIO_FALLINGDETECT 0x004c |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 118 | #define OMAP24XX_GPIO_DEBOUNCE_EN 0x0050 |
| 119 | #define OMAP24XX_GPIO_DEBOUNCE_VAL 0x0054 |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 120 | #define OMAP24XX_GPIO_CLEARIRQENABLE1 0x0060 |
| 121 | #define OMAP24XX_GPIO_SETIRQENABLE1 0x0064 |
| 122 | #define OMAP24XX_GPIO_CLEARWKUENA 0x0080 |
| 123 | #define OMAP24XX_GPIO_SETWKUENA 0x0084 |
| 124 | #define OMAP24XX_GPIO_CLEARDATAOUT 0x0090 |
| 125 | #define OMAP24XX_GPIO_SETDATAOUT 0x0094 |
| 126 | |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 127 | #define OMAP4_GPIO_REVISION 0x0000 |
| 128 | #define OMAP4_GPIO_SYSCONFIG 0x0010 |
| 129 | #define OMAP4_GPIO_EOI 0x0020 |
| 130 | #define OMAP4_GPIO_IRQSTATUSRAW0 0x0024 |
| 131 | #define OMAP4_GPIO_IRQSTATUSRAW1 0x0028 |
| 132 | #define OMAP4_GPIO_IRQSTATUS0 0x002c |
| 133 | #define OMAP4_GPIO_IRQSTATUS1 0x0030 |
| 134 | #define OMAP4_GPIO_IRQSTATUSSET0 0x0034 |
| 135 | #define OMAP4_GPIO_IRQSTATUSSET1 0x0038 |
| 136 | #define OMAP4_GPIO_IRQSTATUSCLR0 0x003c |
| 137 | #define OMAP4_GPIO_IRQSTATUSCLR1 0x0040 |
| 138 | #define OMAP4_GPIO_IRQWAKEN0 0x0044 |
| 139 | #define OMAP4_GPIO_IRQWAKEN1 0x0048 |
| 140 | #define OMAP4_GPIO_SYSSTATUS 0x0104 |
| 141 | #define OMAP4_GPIO_CTRL 0x0130 |
| 142 | #define OMAP4_GPIO_OE 0x0134 |
| 143 | #define OMAP4_GPIO_DATAIN 0x0138 |
| 144 | #define OMAP4_GPIO_DATAOUT 0x013c |
| 145 | #define OMAP4_GPIO_LEVELDETECT0 0x0140 |
| 146 | #define OMAP4_GPIO_LEVELDETECT1 0x0144 |
| 147 | #define OMAP4_GPIO_RISINGDETECT 0x0148 |
| 148 | #define OMAP4_GPIO_FALLINGDETECT 0x014c |
| 149 | #define OMAP4_GPIO_DEBOUNCENABLE 0x0150 |
| 150 | #define OMAP4_GPIO_DEBOUNCINGTIME 0x0154 |
| 151 | #define OMAP4_GPIO_CLEARDATAOUT 0x0190 |
| 152 | #define OMAP4_GPIO_SETDATAOUT 0x0194 |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 153 | /* |
| 154 | * omap34xx specific GPIO registers |
| 155 | */ |
| 156 | |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 157 | #define OMAP34XX_GPIO1_BASE OMAP2_IO_ADDRESS(0x48310000) |
| 158 | #define OMAP34XX_GPIO2_BASE OMAP2_IO_ADDRESS(0x49050000) |
| 159 | #define OMAP34XX_GPIO3_BASE OMAP2_IO_ADDRESS(0x49052000) |
| 160 | #define OMAP34XX_GPIO4_BASE OMAP2_IO_ADDRESS(0x49054000) |
| 161 | #define OMAP34XX_GPIO5_BASE OMAP2_IO_ADDRESS(0x49056000) |
| 162 | #define OMAP34XX_GPIO6_BASE OMAP2_IO_ADDRESS(0x49058000) |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 163 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 164 | /* |
| 165 | * OMAP44XX specific GPIO registers |
| 166 | */ |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 167 | #define OMAP44XX_GPIO1_BASE OMAP2_IO_ADDRESS(0x4a310000) |
| 168 | #define OMAP44XX_GPIO2_BASE OMAP2_IO_ADDRESS(0x48055000) |
| 169 | #define OMAP44XX_GPIO3_BASE OMAP2_IO_ADDRESS(0x48057000) |
| 170 | #define OMAP44XX_GPIO4_BASE OMAP2_IO_ADDRESS(0x48059000) |
| 171 | #define OMAP44XX_GPIO5_BASE OMAP2_IO_ADDRESS(0x4805B000) |
| 172 | #define OMAP44XX_GPIO6_BASE OMAP2_IO_ADDRESS(0x4805D000) |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 173 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 174 | struct gpio_bank { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 175 | void __iomem *base; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 176 | u16 irq; |
| 177 | u16 virtual_irq_start; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 178 | int method; |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 179 | #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || \ |
| 180 | defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP4) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 181 | u32 suspend_wakeup; |
| 182 | u32 saved_wakeup; |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 183 | #endif |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 184 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ |
| 185 | defined(CONFIG_ARCH_OMAP4) |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 186 | u32 non_wakeup_gpios; |
| 187 | u32 enabled_non_wakeup_gpios; |
| 188 | |
| 189 | u32 saved_datain; |
| 190 | u32 saved_fallingdetect; |
| 191 | u32 saved_risingdetect; |
| 192 | #endif |
Kevin Hilman | b144ff6 | 2008-01-16 21:56:15 -0800 | [diff] [blame] | 193 | u32 level_mask; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 194 | spinlock_t lock; |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 195 | struct gpio_chip chip; |
Jouni Hogander | 89db948 | 2008-12-10 17:35:24 -0800 | [diff] [blame] | 196 | struct clk *dbck; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 197 | }; |
| 198 | |
| 199 | #define METHOD_MPUIO 0 |
| 200 | #define METHOD_GPIO_1510 1 |
| 201 | #define METHOD_GPIO_1610 2 |
| 202 | #define METHOD_GPIO_730 3 |
Zebediah C. McClure | 56739a6 | 2009-03-23 18:07:40 -0700 | [diff] [blame] | 203 | #define METHOD_GPIO_24XX 5 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 204 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 205 | #ifdef CONFIG_ARCH_OMAP16XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 206 | static struct gpio_bank gpio_bank_1610[5] = { |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 207 | { OMAP1_MPUIO_VBASE, INT_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO}, |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 208 | { OMAP1610_GPIO1_BASE, INT_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_1610 }, |
| 209 | { OMAP1610_GPIO2_BASE, INT_1610_GPIO_BANK2, IH_GPIO_BASE + 16, METHOD_GPIO_1610 }, |
| 210 | { OMAP1610_GPIO3_BASE, INT_1610_GPIO_BANK3, IH_GPIO_BASE + 32, METHOD_GPIO_1610 }, |
| 211 | { OMAP1610_GPIO4_BASE, INT_1610_GPIO_BANK4, IH_GPIO_BASE + 48, METHOD_GPIO_1610 }, |
| 212 | }; |
| 213 | #endif |
| 214 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 215 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 216 | static struct gpio_bank gpio_bank_1510[2] = { |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 217 | { OMAP1_MPUIO_VBASE, INT_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO }, |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 218 | { OMAP1510_GPIO_BASE, INT_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_1510 } |
| 219 | }; |
| 220 | #endif |
| 221 | |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 222 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 223 | static struct gpio_bank gpio_bank_730[7] = { |
Tony Lindgren | 9411326 | 2009-08-28 10:50:33 -0700 | [diff] [blame] | 224 | { OMAP1_MPUIO_VBASE, INT_730_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO }, |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 225 | { OMAP730_GPIO1_BASE, INT_730_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_730 }, |
| 226 | { OMAP730_GPIO2_BASE, INT_730_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_730 }, |
| 227 | { OMAP730_GPIO3_BASE, INT_730_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_730 }, |
| 228 | { OMAP730_GPIO4_BASE, INT_730_GPIO_BANK4, IH_GPIO_BASE + 96, METHOD_GPIO_730 }, |
| 229 | { OMAP730_GPIO5_BASE, INT_730_GPIO_BANK5, IH_GPIO_BASE + 128, METHOD_GPIO_730 }, |
| 230 | { OMAP730_GPIO6_BASE, INT_730_GPIO_BANK6, IH_GPIO_BASE + 160, METHOD_GPIO_730 }, |
| 231 | }; |
| 232 | #endif |
| 233 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 234 | #ifdef CONFIG_ARCH_OMAP24XX |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 235 | |
| 236 | static struct gpio_bank gpio_bank_242x[4] = { |
| 237 | { OMAP242X_GPIO1_BASE, INT_24XX_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_24XX }, |
| 238 | { OMAP242X_GPIO2_BASE, INT_24XX_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_24XX }, |
| 239 | { OMAP242X_GPIO3_BASE, INT_24XX_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_24XX }, |
| 240 | { OMAP242X_GPIO4_BASE, INT_24XX_GPIO_BANK4, IH_GPIO_BASE + 96, METHOD_GPIO_24XX }, |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 241 | }; |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 242 | |
| 243 | static struct gpio_bank gpio_bank_243x[5] = { |
| 244 | { OMAP243X_GPIO1_BASE, INT_24XX_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_24XX }, |
| 245 | { OMAP243X_GPIO2_BASE, INT_24XX_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_24XX }, |
| 246 | { OMAP243X_GPIO3_BASE, INT_24XX_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_24XX }, |
| 247 | { OMAP243X_GPIO4_BASE, INT_24XX_GPIO_BANK4, IH_GPIO_BASE + 96, METHOD_GPIO_24XX }, |
| 248 | { OMAP243X_GPIO5_BASE, INT_24XX_GPIO_BANK5, IH_GPIO_BASE + 128, METHOD_GPIO_24XX }, |
| 249 | }; |
| 250 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 251 | #endif |
| 252 | |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 253 | #ifdef CONFIG_ARCH_OMAP34XX |
| 254 | static struct gpio_bank gpio_bank_34xx[6] = { |
| 255 | { OMAP34XX_GPIO1_BASE, INT_34XX_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_24XX }, |
| 256 | { OMAP34XX_GPIO2_BASE, INT_34XX_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_24XX }, |
| 257 | { OMAP34XX_GPIO3_BASE, INT_34XX_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_24XX }, |
| 258 | { OMAP34XX_GPIO4_BASE, INT_34XX_GPIO_BANK4, IH_GPIO_BASE + 96, METHOD_GPIO_24XX }, |
| 259 | { OMAP34XX_GPIO5_BASE, INT_34XX_GPIO_BANK5, IH_GPIO_BASE + 128, METHOD_GPIO_24XX }, |
| 260 | { OMAP34XX_GPIO6_BASE, INT_34XX_GPIO_BANK6, IH_GPIO_BASE + 160, METHOD_GPIO_24XX }, |
| 261 | }; |
| 262 | |
| 263 | #endif |
| 264 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 265 | #ifdef CONFIG_ARCH_OMAP4 |
| 266 | static struct gpio_bank gpio_bank_44xx[6] = { |
| 267 | { OMAP44XX_GPIO1_BASE, INT_44XX_GPIO_BANK1, IH_GPIO_BASE, \ |
| 268 | METHOD_GPIO_24XX }, |
| 269 | { OMAP44XX_GPIO2_BASE, INT_44XX_GPIO_BANK2, IH_GPIO_BASE + 32, \ |
| 270 | METHOD_GPIO_24XX }, |
| 271 | { OMAP44XX_GPIO3_BASE, INT_44XX_GPIO_BANK3, IH_GPIO_BASE + 64, \ |
| 272 | METHOD_GPIO_24XX }, |
| 273 | { OMAP44XX_GPIO4_BASE, INT_44XX_GPIO_BANK4, IH_GPIO_BASE + 96, \ |
| 274 | METHOD_GPIO_24XX }, |
| 275 | { OMAP44XX_GPIO5_BASE, INT_44XX_GPIO_BANK5, IH_GPIO_BASE + 128, \ |
| 276 | METHOD_GPIO_24XX }, |
| 277 | { OMAP44XX_GPIO6_BASE, INT_44XX_GPIO_BANK6, IH_GPIO_BASE + 160, \ |
| 278 | METHOD_GPIO_24XX }, |
| 279 | }; |
| 280 | |
| 281 | #endif |
| 282 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 283 | static struct gpio_bank *gpio_bank; |
| 284 | static int gpio_bank_count; |
| 285 | |
| 286 | static inline struct gpio_bank *get_gpio_bank(int gpio) |
| 287 | { |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 288 | if (cpu_is_omap15xx()) { |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 289 | if (OMAP_GPIO_IS_MPUIO(gpio)) |
| 290 | return &gpio_bank[0]; |
| 291 | return &gpio_bank[1]; |
| 292 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 293 | if (cpu_is_omap16xx()) { |
| 294 | if (OMAP_GPIO_IS_MPUIO(gpio)) |
| 295 | return &gpio_bank[0]; |
| 296 | return &gpio_bank[1 + (gpio >> 4)]; |
| 297 | } |
Zebediah C. McClure | 56739a6 | 2009-03-23 18:07:40 -0700 | [diff] [blame] | 298 | if (cpu_is_omap7xx()) { |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 299 | if (OMAP_GPIO_IS_MPUIO(gpio)) |
| 300 | return &gpio_bank[0]; |
| 301 | return &gpio_bank[1 + (gpio >> 5)]; |
| 302 | } |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 303 | if (cpu_is_omap24xx()) |
| 304 | return &gpio_bank[gpio >> 5]; |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 305 | if (cpu_is_omap34xx() || cpu_is_omap44xx()) |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 306 | return &gpio_bank[gpio >> 5]; |
David Brownell | e031ab2 | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 307 | BUG(); |
| 308 | return NULL; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 309 | } |
| 310 | |
| 311 | static inline int get_gpio_index(int gpio) |
| 312 | { |
Zebediah C. McClure | 56739a6 | 2009-03-23 18:07:40 -0700 | [diff] [blame] | 313 | if (cpu_is_omap7xx()) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 314 | return gpio & 0x1f; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 315 | if (cpu_is_omap24xx()) |
| 316 | return gpio & 0x1f; |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 317 | if (cpu_is_omap34xx() || cpu_is_omap44xx()) |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 318 | return gpio & 0x1f; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 319 | return gpio & 0x0f; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | static inline int gpio_valid(int gpio) |
| 323 | { |
| 324 | if (gpio < 0) |
| 325 | return -1; |
Tony Lindgren | d11ac97 | 2008-01-12 15:35:04 -0800 | [diff] [blame] | 326 | if (cpu_class_is_omap1() && OMAP_GPIO_IS_MPUIO(gpio)) { |
Jonathan McDowell | 193e68b | 2006-09-25 12:41:30 +0300 | [diff] [blame] | 327 | if (gpio >= OMAP_MAX_GPIO_LINES + 16) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 328 | return -1; |
| 329 | return 0; |
| 330 | } |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 331 | if (cpu_is_omap15xx() && gpio < 16) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 332 | return 0; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 333 | if ((cpu_is_omap16xx()) && gpio < 64) |
| 334 | return 0; |
Zebediah C. McClure | 56739a6 | 2009-03-23 18:07:40 -0700 | [diff] [blame] | 335 | if (cpu_is_omap7xx() && gpio < 192) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 336 | return 0; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 337 | if (cpu_is_omap24xx() && gpio < 128) |
| 338 | return 0; |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 339 | if ((cpu_is_omap34xx() || cpu_is_omap44xx()) && gpio < 192) |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 340 | return 0; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 341 | return -1; |
| 342 | } |
| 343 | |
| 344 | static int check_gpio(int gpio) |
| 345 | { |
| 346 | if (unlikely(gpio_valid(gpio)) < 0) { |
| 347 | printk(KERN_ERR "omap-gpio: invalid GPIO %d\n", gpio); |
| 348 | dump_stack(); |
| 349 | return -1; |
| 350 | } |
| 351 | return 0; |
| 352 | } |
| 353 | |
| 354 | static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input) |
| 355 | { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 356 | void __iomem *reg = bank->base; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 357 | u32 l; |
| 358 | |
| 359 | switch (bank->method) { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 360 | #ifdef CONFIG_ARCH_OMAP1 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 361 | case METHOD_MPUIO: |
| 362 | reg += OMAP_MPUIO_IO_CNTL; |
| 363 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 364 | #endif |
| 365 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 366 | case METHOD_GPIO_1510: |
| 367 | reg += OMAP1510_GPIO_DIR_CONTROL; |
| 368 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 369 | #endif |
| 370 | #ifdef CONFIG_ARCH_OMAP16XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 371 | case METHOD_GPIO_1610: |
| 372 | reg += OMAP1610_GPIO_DIRECTION; |
| 373 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 374 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 375 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 376 | case METHOD_GPIO_730: |
| 377 | reg += OMAP730_GPIO_DIR_CONTROL; |
| 378 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 379 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 380 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 381 | case METHOD_GPIO_24XX: |
| 382 | reg += OMAP24XX_GPIO_OE; |
| 383 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 384 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 385 | #if defined(CONFIG_ARCH_OMAP4) |
| 386 | case METHOD_GPIO_24XX: |
| 387 | reg += OMAP4_GPIO_OE; |
| 388 | break; |
| 389 | #endif |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 390 | default: |
| 391 | WARN_ON(1); |
| 392 | return; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 393 | } |
| 394 | l = __raw_readl(reg); |
| 395 | if (is_input) |
| 396 | l |= 1 << gpio; |
| 397 | else |
| 398 | l &= ~(1 << gpio); |
| 399 | __raw_writel(l, reg); |
| 400 | } |
| 401 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 402 | static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) |
| 403 | { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 404 | void __iomem *reg = bank->base; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 405 | u32 l = 0; |
| 406 | |
| 407 | switch (bank->method) { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 408 | #ifdef CONFIG_ARCH_OMAP1 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 409 | case METHOD_MPUIO: |
| 410 | reg += OMAP_MPUIO_OUTPUT; |
| 411 | l = __raw_readl(reg); |
| 412 | if (enable) |
| 413 | l |= 1 << gpio; |
| 414 | else |
| 415 | l &= ~(1 << gpio); |
| 416 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 417 | #endif |
| 418 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 419 | case METHOD_GPIO_1510: |
| 420 | reg += OMAP1510_GPIO_DATA_OUTPUT; |
| 421 | l = __raw_readl(reg); |
| 422 | if (enable) |
| 423 | l |= 1 << gpio; |
| 424 | else |
| 425 | l &= ~(1 << gpio); |
| 426 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 427 | #endif |
| 428 | #ifdef CONFIG_ARCH_OMAP16XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 429 | case METHOD_GPIO_1610: |
| 430 | if (enable) |
| 431 | reg += OMAP1610_GPIO_SET_DATAOUT; |
| 432 | else |
| 433 | reg += OMAP1610_GPIO_CLEAR_DATAOUT; |
| 434 | l = 1 << gpio; |
| 435 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 436 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 437 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 438 | case METHOD_GPIO_730: |
| 439 | reg += OMAP730_GPIO_DATA_OUTPUT; |
| 440 | l = __raw_readl(reg); |
| 441 | if (enable) |
| 442 | l |= 1 << gpio; |
| 443 | else |
| 444 | l &= ~(1 << gpio); |
| 445 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 446 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 447 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 448 | case METHOD_GPIO_24XX: |
| 449 | if (enable) |
| 450 | reg += OMAP24XX_GPIO_SETDATAOUT; |
| 451 | else |
| 452 | reg += OMAP24XX_GPIO_CLEARDATAOUT; |
| 453 | l = 1 << gpio; |
| 454 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 455 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 456 | #ifdef CONFIG_ARCH_OMAP4 |
| 457 | case METHOD_GPIO_24XX: |
| 458 | if (enable) |
| 459 | reg += OMAP4_GPIO_SETDATAOUT; |
| 460 | else |
| 461 | reg += OMAP4_GPIO_CLEARDATAOUT; |
| 462 | l = 1 << gpio; |
| 463 | break; |
| 464 | #endif |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 465 | default: |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 466 | WARN_ON(1); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 467 | return; |
| 468 | } |
| 469 | __raw_writel(l, reg); |
| 470 | } |
| 471 | |
Roger Quadros | b37c45b | 2009-08-05 16:53:24 +0300 | [diff] [blame] | 472 | static int _get_gpio_datain(struct gpio_bank *bank, int gpio) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 473 | { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 474 | void __iomem *reg; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 475 | |
| 476 | if (check_gpio(gpio) < 0) |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 477 | return -EINVAL; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 478 | reg = bank->base; |
| 479 | switch (bank->method) { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 480 | #ifdef CONFIG_ARCH_OMAP1 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 481 | case METHOD_MPUIO: |
| 482 | reg += OMAP_MPUIO_INPUT_LATCH; |
| 483 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 484 | #endif |
| 485 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 486 | case METHOD_GPIO_1510: |
| 487 | reg += OMAP1510_GPIO_DATA_INPUT; |
| 488 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 489 | #endif |
| 490 | #ifdef CONFIG_ARCH_OMAP16XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 491 | case METHOD_GPIO_1610: |
| 492 | reg += OMAP1610_GPIO_DATAIN; |
| 493 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 494 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 495 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 496 | case METHOD_GPIO_730: |
| 497 | reg += OMAP730_GPIO_DATA_INPUT; |
| 498 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 499 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 500 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 501 | case METHOD_GPIO_24XX: |
| 502 | reg += OMAP24XX_GPIO_DATAIN; |
| 503 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 504 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 505 | #ifdef CONFIG_ARCH_OMAP4 |
| 506 | case METHOD_GPIO_24XX: |
| 507 | reg += OMAP4_GPIO_DATAIN; |
| 508 | break; |
| 509 | #endif |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 510 | default: |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 511 | return -EINVAL; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 512 | } |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 513 | return (__raw_readl(reg) |
| 514 | & (1 << get_gpio_index(gpio))) != 0; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 515 | } |
| 516 | |
Roger Quadros | b37c45b | 2009-08-05 16:53:24 +0300 | [diff] [blame] | 517 | static int _get_gpio_dataout(struct gpio_bank *bank, int gpio) |
| 518 | { |
| 519 | void __iomem *reg; |
| 520 | |
| 521 | if (check_gpio(gpio) < 0) |
| 522 | return -EINVAL; |
| 523 | reg = bank->base; |
| 524 | |
| 525 | switch (bank->method) { |
| 526 | #ifdef CONFIG_ARCH_OMAP1 |
| 527 | case METHOD_MPUIO: |
| 528 | reg += OMAP_MPUIO_OUTPUT; |
| 529 | break; |
| 530 | #endif |
| 531 | #ifdef CONFIG_ARCH_OMAP15XX |
| 532 | case METHOD_GPIO_1510: |
| 533 | reg += OMAP1510_GPIO_DATA_OUTPUT; |
| 534 | break; |
| 535 | #endif |
| 536 | #ifdef CONFIG_ARCH_OMAP16XX |
| 537 | case METHOD_GPIO_1610: |
| 538 | reg += OMAP1610_GPIO_DATAOUT; |
| 539 | break; |
| 540 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 541 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Roger Quadros | b37c45b | 2009-08-05 16:53:24 +0300 | [diff] [blame] | 542 | case METHOD_GPIO_730: |
| 543 | reg += OMAP730_GPIO_DATA_OUTPUT; |
| 544 | break; |
| 545 | #endif |
Roger Quadros | b37c45b | 2009-08-05 16:53:24 +0300 | [diff] [blame] | 546 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ |
| 547 | defined(CONFIG_ARCH_OMAP4) |
| 548 | case METHOD_GPIO_24XX: |
| 549 | reg += OMAP24XX_GPIO_DATAOUT; |
| 550 | break; |
| 551 | #endif |
| 552 | default: |
| 553 | return -EINVAL; |
| 554 | } |
| 555 | |
| 556 | return (__raw_readl(reg) & (1 << get_gpio_index(gpio))) != 0; |
| 557 | } |
| 558 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 559 | #define MOD_REG_BIT(reg, bit_mask, set) \ |
| 560 | do { \ |
| 561 | int l = __raw_readl(base + reg); \ |
| 562 | if (set) l |= bit_mask; \ |
| 563 | else l &= ~bit_mask; \ |
| 564 | __raw_writel(l, base + reg); \ |
| 565 | } while(0) |
| 566 | |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 567 | void omap_set_gpio_debounce(int gpio, int enable) |
| 568 | { |
| 569 | struct gpio_bank *bank; |
| 570 | void __iomem *reg; |
David Brownell | e031ab2 | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 571 | unsigned long flags; |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 572 | u32 val, l = 1 << get_gpio_index(gpio); |
| 573 | |
| 574 | if (cpu_class_is_omap1()) |
| 575 | return; |
| 576 | |
| 577 | bank = get_gpio_bank(gpio); |
| 578 | reg = bank->base; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 579 | #ifdef CONFIG_ARCH_OMAP4 |
| 580 | reg += OMAP4_GPIO_DEBOUNCENABLE; |
| 581 | #else |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 582 | reg += OMAP24XX_GPIO_DEBOUNCE_EN; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 583 | #endif |
David Brownell | e031ab2 | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 584 | |
| 585 | spin_lock_irqsave(&bank->lock, flags); |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 586 | val = __raw_readl(reg); |
| 587 | |
Jouni Hogander | 89db948 | 2008-12-10 17:35:24 -0800 | [diff] [blame] | 588 | if (enable && !(val & l)) |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 589 | val |= l; |
David Brownell | e031ab2 | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 590 | else if (!enable && (val & l)) |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 591 | val &= ~l; |
Jouni Hogander | 89db948 | 2008-12-10 17:35:24 -0800 | [diff] [blame] | 592 | else |
David Brownell | e031ab2 | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 593 | goto done; |
Jouni Hogander | 89db948 | 2008-12-10 17:35:24 -0800 | [diff] [blame] | 594 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 595 | if (cpu_is_omap34xx() || cpu_is_omap44xx()) { |
David Brownell | e031ab2 | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 596 | if (enable) |
| 597 | clk_enable(bank->dbck); |
| 598 | else |
| 599 | clk_disable(bank->dbck); |
| 600 | } |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 601 | |
| 602 | __raw_writel(val, reg); |
David Brownell | e031ab2 | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 603 | done: |
| 604 | spin_unlock_irqrestore(&bank->lock, flags); |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 605 | } |
| 606 | EXPORT_SYMBOL(omap_set_gpio_debounce); |
| 607 | |
| 608 | void omap_set_gpio_debounce_time(int gpio, int enc_time) |
| 609 | { |
| 610 | struct gpio_bank *bank; |
| 611 | void __iomem *reg; |
| 612 | |
| 613 | if (cpu_class_is_omap1()) |
| 614 | return; |
| 615 | |
| 616 | bank = get_gpio_bank(gpio); |
| 617 | reg = bank->base; |
| 618 | |
| 619 | enc_time &= 0xff; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 620 | #ifdef CONFIG_ARCH_OMAP4 |
| 621 | reg += OMAP4_GPIO_DEBOUNCINGTIME; |
| 622 | #else |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 623 | reg += OMAP24XX_GPIO_DEBOUNCE_VAL; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 624 | #endif |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 625 | __raw_writel(enc_time, reg); |
| 626 | } |
| 627 | EXPORT_SYMBOL(omap_set_gpio_debounce_time); |
| 628 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 629 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ |
| 630 | defined(CONFIG_ARCH_OMAP4) |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 631 | static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio, |
| 632 | int trigger) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 633 | { |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 634 | void __iomem *base = bank->base; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 635 | u32 gpio_bit = 1 << gpio; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 636 | u32 val; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 637 | |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 638 | if (cpu_is_omap44xx()) { |
| 639 | MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT0, gpio_bit, |
| 640 | trigger & IRQ_TYPE_LEVEL_LOW); |
| 641 | MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT1, gpio_bit, |
| 642 | trigger & IRQ_TYPE_LEVEL_HIGH); |
| 643 | MOD_REG_BIT(OMAP4_GPIO_RISINGDETECT, gpio_bit, |
| 644 | trigger & IRQ_TYPE_EDGE_RISING); |
| 645 | MOD_REG_BIT(OMAP4_GPIO_FALLINGDETECT, gpio_bit, |
| 646 | trigger & IRQ_TYPE_EDGE_FALLING); |
| 647 | } else { |
| 648 | MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT0, gpio_bit, |
| 649 | trigger & IRQ_TYPE_LEVEL_LOW); |
| 650 | MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT1, gpio_bit, |
| 651 | trigger & IRQ_TYPE_LEVEL_HIGH); |
| 652 | MOD_REG_BIT(OMAP24XX_GPIO_RISINGDETECT, gpio_bit, |
| 653 | trigger & IRQ_TYPE_EDGE_RISING); |
| 654 | MOD_REG_BIT(OMAP24XX_GPIO_FALLINGDETECT, gpio_bit, |
| 655 | trigger & IRQ_TYPE_EDGE_FALLING); |
| 656 | } |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 657 | if (likely(!(bank->non_wakeup_gpios & gpio_bit))) { |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 658 | if (cpu_is_omap44xx()) { |
| 659 | if (trigger != 0) |
| 660 | __raw_writel(1 << gpio, bank->base+ |
| 661 | OMAP4_GPIO_IRQWAKEN0); |
| 662 | else { |
| 663 | val = __raw_readl(bank->base + |
| 664 | OMAP4_GPIO_IRQWAKEN0); |
| 665 | __raw_writel(val & (~(1 << gpio)), bank->base + |
| 666 | OMAP4_GPIO_IRQWAKEN0); |
| 667 | } |
| 668 | } else { |
| 669 | if (trigger != 0) |
| 670 | __raw_writel(1 << gpio, bank->base |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 671 | + OMAP24XX_GPIO_SETWKUENA); |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 672 | else |
| 673 | __raw_writel(1 << gpio, bank->base |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 674 | + OMAP24XX_GPIO_CLEARWKUENA); |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 675 | } |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 676 | } else { |
| 677 | if (trigger != 0) |
| 678 | bank->enabled_non_wakeup_gpios |= gpio_bit; |
| 679 | else |
| 680 | bank->enabled_non_wakeup_gpios &= ~gpio_bit; |
| 681 | } |
Kevin Hilman | 5eb3bb9 | 2007-05-05 11:40:29 -0700 | [diff] [blame] | 682 | |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 683 | if (cpu_is_omap44xx()) { |
| 684 | bank->level_mask = |
| 685 | __raw_readl(bank->base + OMAP4_GPIO_LEVELDETECT0) | |
| 686 | __raw_readl(bank->base + OMAP4_GPIO_LEVELDETECT1); |
| 687 | } else { |
| 688 | bank->level_mask = |
| 689 | __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0) | |
| 690 | __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1); |
| 691 | } |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 692 | } |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 693 | #endif |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 694 | |
| 695 | static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) |
| 696 | { |
| 697 | void __iomem *reg = bank->base; |
| 698 | u32 l = 0; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 699 | |
| 700 | switch (bank->method) { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 701 | #ifdef CONFIG_ARCH_OMAP1 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 702 | case METHOD_MPUIO: |
| 703 | reg += OMAP_MPUIO_GPIO_INT_EDGE; |
| 704 | l = __raw_readl(reg); |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 705 | if (trigger & IRQ_TYPE_EDGE_RISING) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 706 | l |= 1 << gpio; |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 707 | else if (trigger & IRQ_TYPE_EDGE_FALLING) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 708 | l &= ~(1 << gpio); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 709 | else |
| 710 | goto bad; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 711 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 712 | #endif |
| 713 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 714 | case METHOD_GPIO_1510: |
| 715 | reg += OMAP1510_GPIO_INT_CONTROL; |
| 716 | l = __raw_readl(reg); |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 717 | if (trigger & IRQ_TYPE_EDGE_RISING) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 718 | l |= 1 << gpio; |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 719 | else if (trigger & IRQ_TYPE_EDGE_FALLING) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 720 | l &= ~(1 << gpio); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 721 | else |
| 722 | goto bad; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 723 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 724 | #endif |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 725 | #ifdef CONFIG_ARCH_OMAP16XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 726 | case METHOD_GPIO_1610: |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 727 | if (gpio & 0x08) |
| 728 | reg += OMAP1610_GPIO_EDGE_CTRL2; |
| 729 | else |
| 730 | reg += OMAP1610_GPIO_EDGE_CTRL1; |
| 731 | gpio &= 0x07; |
| 732 | l = __raw_readl(reg); |
| 733 | l &= ~(3 << (gpio << 1)); |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 734 | if (trigger & IRQ_TYPE_EDGE_RISING) |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 735 | l |= 2 << (gpio << 1); |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 736 | if (trigger & IRQ_TYPE_EDGE_FALLING) |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 737 | l |= 1 << (gpio << 1); |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 738 | if (trigger) |
| 739 | /* Enable wake-up during idle for dynamic tick */ |
| 740 | __raw_writel(1 << gpio, bank->base + OMAP1610_GPIO_SET_WAKEUPENA); |
| 741 | else |
| 742 | __raw_writel(1 << gpio, bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 743 | break; |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 744 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 745 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 746 | case METHOD_GPIO_730: |
| 747 | reg += OMAP730_GPIO_INT_CONTROL; |
| 748 | l = __raw_readl(reg); |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 749 | if (trigger & IRQ_TYPE_EDGE_RISING) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 750 | l |= 1 << gpio; |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 751 | else if (trigger & IRQ_TYPE_EDGE_FALLING) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 752 | l &= ~(1 << gpio); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 753 | else |
| 754 | goto bad; |
| 755 | break; |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 756 | #endif |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 757 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ |
| 758 | defined(CONFIG_ARCH_OMAP4) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 759 | case METHOD_GPIO_24XX: |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 760 | set_24xx_gpio_triggering(bank, gpio, trigger); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 761 | break; |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 762 | #endif |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 763 | default: |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 764 | goto bad; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 765 | } |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 766 | __raw_writel(l, reg); |
| 767 | return 0; |
| 768 | bad: |
| 769 | return -EINVAL; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 770 | } |
| 771 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 772 | static int gpio_irq_type(unsigned irq, unsigned type) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 773 | { |
| 774 | struct gpio_bank *bank; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 775 | unsigned gpio; |
| 776 | int retval; |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 777 | unsigned long flags; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 778 | |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 779 | if (!cpu_class_is_omap2() && irq > IH_MPUIO_BASE) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 780 | gpio = OMAP_MPUIO(irq - IH_MPUIO_BASE); |
| 781 | else |
| 782 | gpio = irq - IH_GPIO_BASE; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 783 | |
| 784 | if (check_gpio(gpio) < 0) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 785 | return -EINVAL; |
| 786 | |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 787 | if (type & ~IRQ_TYPE_SENSE_MASK) |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 788 | return -EINVAL; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 789 | |
| 790 | /* OMAP1 allows only only edge triggering */ |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 791 | if (!cpu_class_is_omap2() |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 792 | && (type & (IRQ_TYPE_LEVEL_LOW|IRQ_TYPE_LEVEL_HIGH))) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 793 | return -EINVAL; |
| 794 | |
David Brownell | 5878101 | 2006-12-06 17:14:10 -0800 | [diff] [blame] | 795 | bank = get_irq_chip_data(irq); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 796 | spin_lock_irqsave(&bank->lock, flags); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 797 | retval = _set_gpio_triggering(bank, get_gpio_index(gpio), type); |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 798 | if (retval == 0) { |
| 799 | irq_desc[irq].status &= ~IRQ_TYPE_SENSE_MASK; |
| 800 | irq_desc[irq].status |= type; |
| 801 | } |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 802 | spin_unlock_irqrestore(&bank->lock, flags); |
Kevin Hilman | 672e302 | 2008-01-16 21:56:16 -0800 | [diff] [blame] | 803 | |
| 804 | if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) |
| 805 | __set_irq_handler_unlocked(irq, handle_level_irq); |
| 806 | else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)) |
| 807 | __set_irq_handler_unlocked(irq, handle_edge_irq); |
| 808 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 809 | return retval; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 810 | } |
| 811 | |
| 812 | static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask) |
| 813 | { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 814 | void __iomem *reg = bank->base; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 815 | |
| 816 | switch (bank->method) { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 817 | #ifdef CONFIG_ARCH_OMAP1 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 818 | case METHOD_MPUIO: |
| 819 | /* MPUIO irqstatus is reset by reading the status register, |
| 820 | * so do nothing here */ |
| 821 | return; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 822 | #endif |
| 823 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 824 | case METHOD_GPIO_1510: |
| 825 | reg += OMAP1510_GPIO_INT_STATUS; |
| 826 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 827 | #endif |
| 828 | #ifdef CONFIG_ARCH_OMAP16XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 829 | case METHOD_GPIO_1610: |
| 830 | reg += OMAP1610_GPIO_IRQSTATUS1; |
| 831 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 832 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 833 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 834 | case METHOD_GPIO_730: |
| 835 | reg += OMAP730_GPIO_INT_STATUS; |
| 836 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 837 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 838 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 839 | case METHOD_GPIO_24XX: |
| 840 | reg += OMAP24XX_GPIO_IRQSTATUS1; |
| 841 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 842 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 843 | #if defined(CONFIG_ARCH_OMAP4) |
| 844 | case METHOD_GPIO_24XX: |
| 845 | reg += OMAP4_GPIO_IRQSTATUS0; |
| 846 | break; |
| 847 | #endif |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 848 | default: |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 849 | WARN_ON(1); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 850 | return; |
| 851 | } |
| 852 | __raw_writel(gpio_mask, reg); |
Hiroshi DOYU | bee7930 | 2006-09-25 12:41:46 +0300 | [diff] [blame] | 853 | |
| 854 | /* Workaround for clearing DSP GPIO interrupts to allow retention */ |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 855 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Roger Quadros | bedfd15 | 2009-04-23 11:10:50 -0700 | [diff] [blame] | 856 | reg = bank->base + OMAP24XX_GPIO_IRQSTATUS2; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 857 | #endif |
| 858 | #if defined(CONFIG_ARCH_OMAP4) |
| 859 | reg = bank->base + OMAP4_GPIO_IRQSTATUS1; |
| 860 | #endif |
| 861 | if (cpu_is_omap24xx() || cpu_is_omap34xx() || cpu_is_omap44xx()) { |
Roger Quadros | bedfd15 | 2009-04-23 11:10:50 -0700 | [diff] [blame] | 862 | __raw_writel(gpio_mask, reg); |
| 863 | |
| 864 | /* Flush posted write for the irq status to avoid spurious interrupts */ |
| 865 | __raw_readl(reg); |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 866 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 867 | } |
| 868 | |
| 869 | static inline void _clear_gpio_irqstatus(struct gpio_bank *bank, int gpio) |
| 870 | { |
| 871 | _clear_gpio_irqbank(bank, 1 << get_gpio_index(gpio)); |
| 872 | } |
| 873 | |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 874 | static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank) |
| 875 | { |
| 876 | void __iomem *reg = bank->base; |
Imre Deak | 99c4770 | 2006-06-26 16:16:07 -0700 | [diff] [blame] | 877 | int inv = 0; |
| 878 | u32 l; |
| 879 | u32 mask; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 880 | |
| 881 | switch (bank->method) { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 882 | #ifdef CONFIG_ARCH_OMAP1 |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 883 | case METHOD_MPUIO: |
| 884 | reg += OMAP_MPUIO_GPIO_MASKIT; |
Imre Deak | 99c4770 | 2006-06-26 16:16:07 -0700 | [diff] [blame] | 885 | mask = 0xffff; |
| 886 | inv = 1; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 887 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 888 | #endif |
| 889 | #ifdef CONFIG_ARCH_OMAP15XX |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 890 | case METHOD_GPIO_1510: |
| 891 | reg += OMAP1510_GPIO_INT_MASK; |
Imre Deak | 99c4770 | 2006-06-26 16:16:07 -0700 | [diff] [blame] | 892 | mask = 0xffff; |
| 893 | inv = 1; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 894 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 895 | #endif |
| 896 | #ifdef CONFIG_ARCH_OMAP16XX |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 897 | case METHOD_GPIO_1610: |
| 898 | reg += OMAP1610_GPIO_IRQENABLE1; |
Imre Deak | 99c4770 | 2006-06-26 16:16:07 -0700 | [diff] [blame] | 899 | mask = 0xffff; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 900 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 901 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 902 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 903 | case METHOD_GPIO_730: |
| 904 | reg += OMAP730_GPIO_INT_MASK; |
Imre Deak | 99c4770 | 2006-06-26 16:16:07 -0700 | [diff] [blame] | 905 | mask = 0xffffffff; |
| 906 | inv = 1; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 907 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 908 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 909 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 910 | case METHOD_GPIO_24XX: |
| 911 | reg += OMAP24XX_GPIO_IRQENABLE1; |
Imre Deak | 99c4770 | 2006-06-26 16:16:07 -0700 | [diff] [blame] | 912 | mask = 0xffffffff; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 913 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 914 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 915 | #if defined(CONFIG_ARCH_OMAP4) |
| 916 | case METHOD_GPIO_24XX: |
| 917 | reg += OMAP4_GPIO_IRQSTATUSSET0; |
| 918 | mask = 0xffffffff; |
| 919 | break; |
| 920 | #endif |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 921 | default: |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 922 | WARN_ON(1); |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 923 | return 0; |
| 924 | } |
| 925 | |
Imre Deak | 99c4770 | 2006-06-26 16:16:07 -0700 | [diff] [blame] | 926 | l = __raw_readl(reg); |
| 927 | if (inv) |
| 928 | l = ~l; |
| 929 | l &= mask; |
| 930 | return l; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 931 | } |
| 932 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 933 | static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enable) |
| 934 | { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 935 | void __iomem *reg = bank->base; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 936 | u32 l; |
| 937 | |
| 938 | switch (bank->method) { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 939 | #ifdef CONFIG_ARCH_OMAP1 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 940 | case METHOD_MPUIO: |
| 941 | reg += OMAP_MPUIO_GPIO_MASKIT; |
| 942 | l = __raw_readl(reg); |
| 943 | if (enable) |
| 944 | l &= ~(gpio_mask); |
| 945 | else |
| 946 | l |= gpio_mask; |
| 947 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 948 | #endif |
| 949 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 950 | case METHOD_GPIO_1510: |
| 951 | reg += OMAP1510_GPIO_INT_MASK; |
| 952 | l = __raw_readl(reg); |
| 953 | if (enable) |
| 954 | l &= ~(gpio_mask); |
| 955 | else |
| 956 | l |= gpio_mask; |
| 957 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 958 | #endif |
| 959 | #ifdef CONFIG_ARCH_OMAP16XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 960 | case METHOD_GPIO_1610: |
| 961 | if (enable) |
| 962 | reg += OMAP1610_GPIO_SET_IRQENABLE1; |
| 963 | else |
| 964 | reg += OMAP1610_GPIO_CLEAR_IRQENABLE1; |
| 965 | l = gpio_mask; |
| 966 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 967 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 968 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 969 | case METHOD_GPIO_730: |
| 970 | reg += OMAP730_GPIO_INT_MASK; |
| 971 | l = __raw_readl(reg); |
| 972 | if (enable) |
| 973 | l &= ~(gpio_mask); |
| 974 | else |
| 975 | l |= gpio_mask; |
| 976 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 977 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 978 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 979 | case METHOD_GPIO_24XX: |
| 980 | if (enable) |
| 981 | reg += OMAP24XX_GPIO_SETIRQENABLE1; |
| 982 | else |
| 983 | reg += OMAP24XX_GPIO_CLEARIRQENABLE1; |
| 984 | l = gpio_mask; |
| 985 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 986 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 987 | #ifdef CONFIG_ARCH_OMAP4 |
| 988 | case METHOD_GPIO_24XX: |
| 989 | if (enable) |
| 990 | reg += OMAP4_GPIO_IRQSTATUSSET0; |
| 991 | else |
| 992 | reg += OMAP4_GPIO_IRQSTATUSCLR0; |
| 993 | l = gpio_mask; |
| 994 | break; |
| 995 | #endif |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 996 | default: |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 997 | WARN_ON(1); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 998 | return; |
| 999 | } |
| 1000 | __raw_writel(l, reg); |
| 1001 | } |
| 1002 | |
| 1003 | static inline void _set_gpio_irqenable(struct gpio_bank *bank, int gpio, int enable) |
| 1004 | { |
| 1005 | _enable_gpio_irqbank(bank, 1 << get_gpio_index(gpio), enable); |
| 1006 | } |
| 1007 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1008 | /* |
| 1009 | * Note that ENAWAKEUP needs to be enabled in GPIO_SYSCONFIG register. |
| 1010 | * 1510 does not seem to have a wake-up register. If JTAG is connected |
| 1011 | * to the target, system will wake up always on GPIO events. While |
| 1012 | * system is running all registered GPIO interrupts need to have wake-up |
| 1013 | * enabled. When system is suspended, only selected GPIO interrupts need |
| 1014 | * to have wake-up enabled. |
| 1015 | */ |
| 1016 | static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) |
| 1017 | { |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1018 | unsigned long flags; |
| 1019 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1020 | switch (bank->method) { |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1021 | #ifdef CONFIG_ARCH_OMAP16XX |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1022 | case METHOD_MPUIO: |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1023 | case METHOD_GPIO_1610: |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1024 | spin_lock_irqsave(&bank->lock, flags); |
Kevin Hilman | b3bb4f6 | 2009-04-23 11:10:49 -0700 | [diff] [blame] | 1025 | if (enable) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1026 | bank->suspend_wakeup |= (1 << gpio); |
Kevin Hilman | b3bb4f6 | 2009-04-23 11:10:49 -0700 | [diff] [blame] | 1027 | else |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1028 | bank->suspend_wakeup &= ~(1 << gpio); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1029 | spin_unlock_irqrestore(&bank->lock, flags); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1030 | return 0; |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1031 | #endif |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1032 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ |
| 1033 | defined(CONFIG_ARCH_OMAP4) |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1034 | case METHOD_GPIO_24XX: |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1035 | if (bank->non_wakeup_gpios & (1 << gpio)) { |
| 1036 | printk(KERN_ERR "Unable to modify wakeup on " |
| 1037 | "non-wakeup GPIO%d\n", |
| 1038 | (bank - gpio_bank) * 32 + gpio); |
| 1039 | return -EINVAL; |
| 1040 | } |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1041 | spin_lock_irqsave(&bank->lock, flags); |
Kevin Hilman | b3bb4f6 | 2009-04-23 11:10:49 -0700 | [diff] [blame] | 1042 | if (enable) |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1043 | bank->suspend_wakeup |= (1 << gpio); |
Kevin Hilman | b3bb4f6 | 2009-04-23 11:10:49 -0700 | [diff] [blame] | 1044 | else |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1045 | bank->suspend_wakeup &= ~(1 << gpio); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1046 | spin_unlock_irqrestore(&bank->lock, flags); |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1047 | return 0; |
| 1048 | #endif |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1049 | default: |
| 1050 | printk(KERN_ERR "Can't enable GPIO wakeup for method %i\n", |
| 1051 | bank->method); |
| 1052 | return -EINVAL; |
| 1053 | } |
| 1054 | } |
| 1055 | |
Tony Lindgren | 4196dd6 | 2006-09-25 12:41:38 +0300 | [diff] [blame] | 1056 | static void _reset_gpio(struct gpio_bank *bank, int gpio) |
| 1057 | { |
| 1058 | _set_gpio_direction(bank, get_gpio_index(gpio), 1); |
| 1059 | _set_gpio_irqenable(bank, gpio, 0); |
| 1060 | _clear_gpio_irqstatus(bank, gpio); |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 1061 | _set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE); |
Tony Lindgren | 4196dd6 | 2006-09-25 12:41:38 +0300 | [diff] [blame] | 1062 | } |
| 1063 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1064 | /* Use disable_irq_wake() and enable_irq_wake() functions from drivers */ |
| 1065 | static int gpio_wake_enable(unsigned int irq, unsigned int enable) |
| 1066 | { |
| 1067 | unsigned int gpio = irq - IH_GPIO_BASE; |
| 1068 | struct gpio_bank *bank; |
| 1069 | int retval; |
| 1070 | |
| 1071 | if (check_gpio(gpio) < 0) |
| 1072 | return -ENODEV; |
David Brownell | 5878101 | 2006-12-06 17:14:10 -0800 | [diff] [blame] | 1073 | bank = get_irq_chip_data(irq); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1074 | retval = _set_gpio_wakeup(bank, get_gpio_index(gpio), enable); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1075 | |
| 1076 | return retval; |
| 1077 | } |
| 1078 | |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1079 | static int omap_gpio_request(struct gpio_chip *chip, unsigned offset) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1080 | { |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1081 | struct gpio_bank *bank = container_of(chip, struct gpio_bank, chip); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1082 | unsigned long flags; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1083 | |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1084 | spin_lock_irqsave(&bank->lock, flags); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1085 | |
Tony Lindgren | 4196dd6 | 2006-09-25 12:41:38 +0300 | [diff] [blame] | 1086 | /* Set trigger to none. You need to enable the desired trigger with |
| 1087 | * request_irq() or set_irq_type(). |
| 1088 | */ |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1089 | _set_gpio_triggering(bank, offset, IRQ_TYPE_NONE); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1090 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1091 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1092 | if (bank->method == METHOD_GPIO_1510) { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1093 | void __iomem *reg; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1094 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1095 | /* Claim the pin for MPU */ |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1096 | reg = bank->base + OMAP1510_GPIO_PIN_CONTROL; |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1097 | __raw_writel(__raw_readl(reg) | (1 << offset), reg); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1098 | } |
| 1099 | #endif |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1100 | spin_unlock_irqrestore(&bank->lock, flags); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1101 | |
| 1102 | return 0; |
| 1103 | } |
| 1104 | |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1105 | static void omap_gpio_free(struct gpio_chip *chip, unsigned offset) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1106 | { |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1107 | struct gpio_bank *bank = container_of(chip, struct gpio_bank, chip); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1108 | unsigned long flags; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1109 | |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1110 | spin_lock_irqsave(&bank->lock, flags); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1111 | #ifdef CONFIG_ARCH_OMAP16XX |
| 1112 | if (bank->method == METHOD_GPIO_1610) { |
| 1113 | /* Disable wake-up during idle for dynamic tick */ |
| 1114 | void __iomem *reg = bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA; |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1115 | __raw_writel(1 << offset, reg); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1116 | } |
| 1117 | #endif |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1118 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ |
| 1119 | defined(CONFIG_ARCH_OMAP4) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1120 | if (bank->method == METHOD_GPIO_24XX) { |
| 1121 | /* Disable wake-up during idle for dynamic tick */ |
| 1122 | void __iomem *reg = bank->base + OMAP24XX_GPIO_CLEARWKUENA; |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1123 | __raw_writel(1 << offset, reg); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1124 | } |
| 1125 | #endif |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1126 | _reset_gpio(bank, bank->chip.base + offset); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1127 | spin_unlock_irqrestore(&bank->lock, flags); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1128 | } |
| 1129 | |
| 1130 | /* |
| 1131 | * We need to unmask the GPIO bank interrupt as soon as possible to |
| 1132 | * avoid missing GPIO interrupts for other lines in the bank. |
| 1133 | * Then we need to mask-read-clear-unmask the triggered GPIO lines |
| 1134 | * in the bank to avoid missing nested interrupts for a GPIO line. |
| 1135 | * If we wait to unmask individual GPIO lines in the bank after the |
| 1136 | * line's interrupt handler has been run, we may miss some nested |
| 1137 | * interrupts. |
| 1138 | */ |
Russell King | 10dd5ce | 2006-11-23 11:41:32 +0000 | [diff] [blame] | 1139 | static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1140 | { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1141 | void __iomem *isr_reg = NULL; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1142 | u32 isr; |
| 1143 | unsigned int gpio_irq; |
| 1144 | struct gpio_bank *bank; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 1145 | u32 retrigger = 0; |
| 1146 | int unmasked = 0; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1147 | |
| 1148 | desc->chip->ack(irq); |
| 1149 | |
Thomas Gleixner | 418ca1f | 2006-07-01 22:32:41 +0100 | [diff] [blame] | 1150 | bank = get_irq_data(irq); |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1151 | #ifdef CONFIG_ARCH_OMAP1 |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1152 | if (bank->method == METHOD_MPUIO) |
| 1153 | isr_reg = bank->base + OMAP_MPUIO_GPIO_INT; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1154 | #endif |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1155 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1156 | if (bank->method == METHOD_GPIO_1510) |
| 1157 | isr_reg = bank->base + OMAP1510_GPIO_INT_STATUS; |
| 1158 | #endif |
| 1159 | #if defined(CONFIG_ARCH_OMAP16XX) |
| 1160 | if (bank->method == METHOD_GPIO_1610) |
| 1161 | isr_reg = bank->base + OMAP1610_GPIO_IRQSTATUS1; |
| 1162 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 1163 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1164 | if (bank->method == METHOD_GPIO_730) |
| 1165 | isr_reg = bank->base + OMAP730_GPIO_INT_STATUS; |
| 1166 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1167 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1168 | if (bank->method == METHOD_GPIO_24XX) |
| 1169 | isr_reg = bank->base + OMAP24XX_GPIO_IRQSTATUS1; |
| 1170 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1171 | #if defined(CONFIG_ARCH_OMAP4) |
| 1172 | if (bank->method == METHOD_GPIO_24XX) |
| 1173 | isr_reg = bank->base + OMAP4_GPIO_IRQSTATUS0; |
| 1174 | #endif |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1175 | while(1) { |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 1176 | u32 isr_saved, level_mask = 0; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 1177 | u32 enabled; |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 1178 | |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 1179 | enabled = _get_gpio_irqbank_mask(bank); |
| 1180 | isr_saved = isr = __raw_readl(isr_reg) & enabled; |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 1181 | |
| 1182 | if (cpu_is_omap15xx() && (bank->method == METHOD_MPUIO)) |
| 1183 | isr &= 0x0000ffff; |
| 1184 | |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1185 | if (cpu_class_is_omap2()) { |
Kevin Hilman | b144ff6 | 2008-01-16 21:56:15 -0800 | [diff] [blame] | 1186 | level_mask = bank->level_mask & enabled; |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 1187 | } |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 1188 | |
| 1189 | /* clear edge sensitive interrupts before handler(s) are |
| 1190 | called so that we don't miss any interrupt occurred while |
| 1191 | executing them */ |
| 1192 | _enable_gpio_irqbank(bank, isr_saved & ~level_mask, 0); |
| 1193 | _clear_gpio_irqbank(bank, isr_saved & ~level_mask); |
| 1194 | _enable_gpio_irqbank(bank, isr_saved & ~level_mask, 1); |
| 1195 | |
| 1196 | /* if there is only edge sensitive GPIO pin interrupts |
| 1197 | configured, we could unmask GPIO bank interrupt immediately */ |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 1198 | if (!level_mask && !unmasked) { |
| 1199 | unmasked = 1; |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 1200 | desc->chip->unmask(irq); |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 1201 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1202 | |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 1203 | isr |= retrigger; |
| 1204 | retrigger = 0; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1205 | if (!isr) |
| 1206 | break; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1207 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1208 | gpio_irq = bank->virtual_irq_start; |
| 1209 | for (; isr != 0; isr >>= 1, gpio_irq++) { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1210 | if (!(isr & 1)) |
| 1211 | continue; |
Thomas Gleixner | 29454dd | 2006-07-03 02:22:22 +0200 | [diff] [blame] | 1212 | |
Dmitry Baryshkov | d8aa025 | 2008-10-09 13:36:24 +0100 | [diff] [blame] | 1213 | generic_handle_irq(gpio_irq); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1214 | } |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1215 | } |
Imre Deak | ea6dedd | 2006-06-26 16:16:00 -0700 | [diff] [blame] | 1216 | /* if bank has any level sensitive GPIO pin interrupt |
| 1217 | configured, we must unmask the bank interrupt only after |
| 1218 | handler(s) are executed in order to avoid spurious bank |
| 1219 | interrupt */ |
| 1220 | if (!unmasked) |
| 1221 | desc->chip->unmask(irq); |
| 1222 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1223 | } |
| 1224 | |
Tony Lindgren | 4196dd6 | 2006-09-25 12:41:38 +0300 | [diff] [blame] | 1225 | static void gpio_irq_shutdown(unsigned int irq) |
| 1226 | { |
| 1227 | unsigned int gpio = irq - IH_GPIO_BASE; |
David Brownell | 5878101 | 2006-12-06 17:14:10 -0800 | [diff] [blame] | 1228 | struct gpio_bank *bank = get_irq_chip_data(irq); |
Tony Lindgren | 4196dd6 | 2006-09-25 12:41:38 +0300 | [diff] [blame] | 1229 | |
| 1230 | _reset_gpio(bank, gpio); |
| 1231 | } |
| 1232 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1233 | static void gpio_ack_irq(unsigned int irq) |
| 1234 | { |
| 1235 | unsigned int gpio = irq - IH_GPIO_BASE; |
David Brownell | 5878101 | 2006-12-06 17:14:10 -0800 | [diff] [blame] | 1236 | struct gpio_bank *bank = get_irq_chip_data(irq); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1237 | |
| 1238 | _clear_gpio_irqstatus(bank, gpio); |
| 1239 | } |
| 1240 | |
| 1241 | static void gpio_mask_irq(unsigned int irq) |
| 1242 | { |
| 1243 | unsigned int gpio = irq - IH_GPIO_BASE; |
David Brownell | 5878101 | 2006-12-06 17:14:10 -0800 | [diff] [blame] | 1244 | struct gpio_bank *bank = get_irq_chip_data(irq); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1245 | |
| 1246 | _set_gpio_irqenable(bank, gpio, 0); |
Kevin Hilman | 55b6019 | 2009-06-04 15:57:10 -0700 | [diff] [blame] | 1247 | _set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1248 | } |
| 1249 | |
| 1250 | static void gpio_unmask_irq(unsigned int irq) |
| 1251 | { |
| 1252 | unsigned int gpio = irq - IH_GPIO_BASE; |
David Brownell | 5878101 | 2006-12-06 17:14:10 -0800 | [diff] [blame] | 1253 | struct gpio_bank *bank = get_irq_chip_data(irq); |
Kevin Hilman | b144ff6 | 2008-01-16 21:56:15 -0800 | [diff] [blame] | 1254 | unsigned int irq_mask = 1 << get_gpio_index(gpio); |
Kevin Hilman | 55b6019 | 2009-06-04 15:57:10 -0700 | [diff] [blame] | 1255 | struct irq_desc *desc = irq_to_desc(irq); |
| 1256 | u32 trigger = desc->status & IRQ_TYPE_SENSE_MASK; |
| 1257 | |
| 1258 | if (trigger) |
| 1259 | _set_gpio_triggering(bank, get_gpio_index(gpio), trigger); |
Kevin Hilman | b144ff6 | 2008-01-16 21:56:15 -0800 | [diff] [blame] | 1260 | |
| 1261 | /* For level-triggered GPIOs, the clearing must be done after |
| 1262 | * the HW source is cleared, thus after the handler has run */ |
| 1263 | if (bank->level_mask & irq_mask) { |
| 1264 | _set_gpio_irqenable(bank, gpio, 0); |
| 1265 | _clear_gpio_irqstatus(bank, gpio); |
| 1266 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1267 | |
Kevin Hilman | 4de8c75 | 2008-01-16 21:56:14 -0800 | [diff] [blame] | 1268 | _set_gpio_irqenable(bank, gpio, 1); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1269 | } |
| 1270 | |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1271 | static struct irq_chip gpio_irq_chip = { |
| 1272 | .name = "GPIO", |
| 1273 | .shutdown = gpio_irq_shutdown, |
| 1274 | .ack = gpio_ack_irq, |
| 1275 | .mask = gpio_mask_irq, |
| 1276 | .unmask = gpio_unmask_irq, |
| 1277 | .set_type = gpio_irq_type, |
| 1278 | .set_wake = gpio_wake_enable, |
| 1279 | }; |
| 1280 | |
| 1281 | /*---------------------------------------------------------------------*/ |
| 1282 | |
| 1283 | #ifdef CONFIG_ARCH_OMAP1 |
| 1284 | |
| 1285 | /* MPUIO uses the always-on 32k clock */ |
| 1286 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1287 | static void mpuio_ack_irq(unsigned int irq) |
| 1288 | { |
| 1289 | /* The ISR is reset automatically, so do nothing here. */ |
| 1290 | } |
| 1291 | |
| 1292 | static void mpuio_mask_irq(unsigned int irq) |
| 1293 | { |
| 1294 | unsigned int gpio = OMAP_MPUIO(irq - IH_MPUIO_BASE); |
David Brownell | 5878101 | 2006-12-06 17:14:10 -0800 | [diff] [blame] | 1295 | struct gpio_bank *bank = get_irq_chip_data(irq); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1296 | |
| 1297 | _set_gpio_irqenable(bank, gpio, 0); |
| 1298 | } |
| 1299 | |
| 1300 | static void mpuio_unmask_irq(unsigned int irq) |
| 1301 | { |
| 1302 | unsigned int gpio = OMAP_MPUIO(irq - IH_MPUIO_BASE); |
David Brownell | 5878101 | 2006-12-06 17:14:10 -0800 | [diff] [blame] | 1303 | struct gpio_bank *bank = get_irq_chip_data(irq); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1304 | |
| 1305 | _set_gpio_irqenable(bank, gpio, 1); |
| 1306 | } |
| 1307 | |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1308 | static struct irq_chip mpuio_irq_chip = { |
| 1309 | .name = "MPUIO", |
| 1310 | .ack = mpuio_ack_irq, |
| 1311 | .mask = mpuio_mask_irq, |
| 1312 | .unmask = mpuio_unmask_irq, |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1313 | .set_type = gpio_irq_type, |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1314 | #ifdef CONFIG_ARCH_OMAP16XX |
| 1315 | /* REVISIT: assuming only 16xx supports MPUIO wake events */ |
| 1316 | .set_wake = gpio_wake_enable, |
| 1317 | #endif |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1318 | }; |
| 1319 | |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1320 | |
| 1321 | #define bank_is_mpuio(bank) ((bank)->method == METHOD_MPUIO) |
| 1322 | |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1323 | |
| 1324 | #ifdef CONFIG_ARCH_OMAP16XX |
| 1325 | |
| 1326 | #include <linux/platform_device.h> |
| 1327 | |
Magnus Damm | 79ee031 | 2009-07-08 13:22:04 +0200 | [diff] [blame] | 1328 | static int omap_mpuio_suspend_noirq(struct device *dev) |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1329 | { |
Magnus Damm | 79ee031 | 2009-07-08 13:22:04 +0200 | [diff] [blame] | 1330 | struct platform_device *pdev = to_platform_device(dev); |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1331 | struct gpio_bank *bank = platform_get_drvdata(pdev); |
| 1332 | void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT; |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1333 | unsigned long flags; |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1334 | |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1335 | spin_lock_irqsave(&bank->lock, flags); |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1336 | bank->saved_wakeup = __raw_readl(mask_reg); |
| 1337 | __raw_writel(0xffff & ~bank->suspend_wakeup, mask_reg); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1338 | spin_unlock_irqrestore(&bank->lock, flags); |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1339 | |
| 1340 | return 0; |
| 1341 | } |
| 1342 | |
Magnus Damm | 79ee031 | 2009-07-08 13:22:04 +0200 | [diff] [blame] | 1343 | static int omap_mpuio_resume_noirq(struct device *dev) |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1344 | { |
Magnus Damm | 79ee031 | 2009-07-08 13:22:04 +0200 | [diff] [blame] | 1345 | struct platform_device *pdev = to_platform_device(dev); |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1346 | struct gpio_bank *bank = platform_get_drvdata(pdev); |
| 1347 | void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT; |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1348 | unsigned long flags; |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1349 | |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1350 | spin_lock_irqsave(&bank->lock, flags); |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1351 | __raw_writel(bank->saved_wakeup, mask_reg); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1352 | spin_unlock_irqrestore(&bank->lock, flags); |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1353 | |
| 1354 | return 0; |
| 1355 | } |
| 1356 | |
Magnus Damm | 79ee031 | 2009-07-08 13:22:04 +0200 | [diff] [blame] | 1357 | static struct dev_pm_ops omap_mpuio_dev_pm_ops = { |
| 1358 | .suspend_noirq = omap_mpuio_suspend_noirq, |
| 1359 | .resume_noirq = omap_mpuio_resume_noirq, |
| 1360 | }; |
| 1361 | |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1362 | /* use platform_driver for this, now that there's no longer any |
| 1363 | * point to sys_device (other than not disturbing old code). |
| 1364 | */ |
| 1365 | static struct platform_driver omap_mpuio_driver = { |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1366 | .driver = { |
| 1367 | .name = "mpuio", |
Magnus Damm | 79ee031 | 2009-07-08 13:22:04 +0200 | [diff] [blame] | 1368 | .pm = &omap_mpuio_dev_pm_ops, |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1369 | }, |
| 1370 | }; |
| 1371 | |
| 1372 | static struct platform_device omap_mpuio_device = { |
| 1373 | .name = "mpuio", |
| 1374 | .id = -1, |
| 1375 | .dev = { |
| 1376 | .driver = &omap_mpuio_driver.driver, |
| 1377 | } |
| 1378 | /* could list the /proc/iomem resources */ |
| 1379 | }; |
| 1380 | |
| 1381 | static inline void mpuio_init(void) |
| 1382 | { |
David Brownell | fcf126d | 2007-04-02 12:46:47 -0700 | [diff] [blame] | 1383 | platform_set_drvdata(&omap_mpuio_device, &gpio_bank_1610[0]); |
| 1384 | |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1385 | if (platform_driver_register(&omap_mpuio_driver) == 0) |
| 1386 | (void) platform_device_register(&omap_mpuio_device); |
| 1387 | } |
| 1388 | |
| 1389 | #else |
| 1390 | static inline void mpuio_init(void) {} |
| 1391 | #endif /* 16xx */ |
| 1392 | |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1393 | #else |
| 1394 | |
| 1395 | extern struct irq_chip mpuio_irq_chip; |
| 1396 | |
| 1397 | #define bank_is_mpuio(bank) 0 |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 1398 | static inline void mpuio_init(void) {} |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1399 | |
| 1400 | #endif |
| 1401 | |
| 1402 | /*---------------------------------------------------------------------*/ |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1403 | |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 1404 | /* REVISIT these are stupid implementations! replace by ones that |
| 1405 | * don't switch on METHOD_* and which mostly avoid spinlocks |
| 1406 | */ |
| 1407 | |
| 1408 | static int gpio_input(struct gpio_chip *chip, unsigned offset) |
| 1409 | { |
| 1410 | struct gpio_bank *bank; |
| 1411 | unsigned long flags; |
| 1412 | |
| 1413 | bank = container_of(chip, struct gpio_bank, chip); |
| 1414 | spin_lock_irqsave(&bank->lock, flags); |
| 1415 | _set_gpio_direction(bank, offset, 1); |
| 1416 | spin_unlock_irqrestore(&bank->lock, flags); |
| 1417 | return 0; |
| 1418 | } |
| 1419 | |
Roger Quadros | b37c45b | 2009-08-05 16:53:24 +0300 | [diff] [blame] | 1420 | static int gpio_is_input(struct gpio_bank *bank, int mask) |
| 1421 | { |
| 1422 | void __iomem *reg = bank->base; |
| 1423 | |
| 1424 | switch (bank->method) { |
| 1425 | case METHOD_MPUIO: |
| 1426 | reg += OMAP_MPUIO_IO_CNTL; |
| 1427 | break; |
| 1428 | case METHOD_GPIO_1510: |
| 1429 | reg += OMAP1510_GPIO_DIR_CONTROL; |
| 1430 | break; |
| 1431 | case METHOD_GPIO_1610: |
| 1432 | reg += OMAP1610_GPIO_DIRECTION; |
| 1433 | break; |
| 1434 | case METHOD_GPIO_730: |
| 1435 | reg += OMAP730_GPIO_DIR_CONTROL; |
| 1436 | break; |
Roger Quadros | b37c45b | 2009-08-05 16:53:24 +0300 | [diff] [blame] | 1437 | case METHOD_GPIO_24XX: |
| 1438 | reg += OMAP24XX_GPIO_OE; |
| 1439 | break; |
| 1440 | } |
| 1441 | return __raw_readl(reg) & mask; |
| 1442 | } |
| 1443 | |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 1444 | static int gpio_get(struct gpio_chip *chip, unsigned offset) |
| 1445 | { |
Roger Quadros | b37c45b | 2009-08-05 16:53:24 +0300 | [diff] [blame] | 1446 | struct gpio_bank *bank; |
| 1447 | void __iomem *reg; |
| 1448 | int gpio; |
| 1449 | u32 mask; |
| 1450 | |
| 1451 | gpio = chip->base + offset; |
| 1452 | bank = get_gpio_bank(gpio); |
| 1453 | reg = bank->base; |
| 1454 | mask = 1 << get_gpio_index(gpio); |
| 1455 | |
| 1456 | if (gpio_is_input(bank, mask)) |
| 1457 | return _get_gpio_datain(bank, gpio); |
| 1458 | else |
| 1459 | return _get_gpio_dataout(bank, gpio); |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 1460 | } |
| 1461 | |
| 1462 | static int gpio_output(struct gpio_chip *chip, unsigned offset, int value) |
| 1463 | { |
| 1464 | struct gpio_bank *bank; |
| 1465 | unsigned long flags; |
| 1466 | |
| 1467 | bank = container_of(chip, struct gpio_bank, chip); |
| 1468 | spin_lock_irqsave(&bank->lock, flags); |
| 1469 | _set_gpio_dataout(bank, offset, value); |
| 1470 | _set_gpio_direction(bank, offset, 0); |
| 1471 | spin_unlock_irqrestore(&bank->lock, flags); |
| 1472 | return 0; |
| 1473 | } |
| 1474 | |
| 1475 | static void gpio_set(struct gpio_chip *chip, unsigned offset, int value) |
| 1476 | { |
| 1477 | struct gpio_bank *bank; |
| 1478 | unsigned long flags; |
| 1479 | |
| 1480 | bank = container_of(chip, struct gpio_bank, chip); |
| 1481 | spin_lock_irqsave(&bank->lock, flags); |
| 1482 | _set_gpio_dataout(bank, offset, value); |
| 1483 | spin_unlock_irqrestore(&bank->lock, flags); |
| 1484 | } |
| 1485 | |
David Brownell | a007b70 | 2008-12-10 17:35:25 -0800 | [diff] [blame] | 1486 | static int gpio_2irq(struct gpio_chip *chip, unsigned offset) |
| 1487 | { |
| 1488 | struct gpio_bank *bank; |
| 1489 | |
| 1490 | bank = container_of(chip, struct gpio_bank, chip); |
| 1491 | return bank->virtual_irq_start + offset; |
| 1492 | } |
| 1493 | |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 1494 | /*---------------------------------------------------------------------*/ |
| 1495 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1496 | static int initialized; |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1497 | #if !(defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)) |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1498 | static struct clk * gpio_ick; |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1499 | #endif |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1500 | |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1501 | #if defined(CONFIG_ARCH_OMAP2) |
| 1502 | static struct clk * gpio_fck; |
| 1503 | #endif |
| 1504 | |
| 1505 | #if defined(CONFIG_ARCH_OMAP2430) |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 1506 | static struct clk * gpio5_ick; |
| 1507 | static struct clk * gpio5_fck; |
| 1508 | #endif |
| 1509 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1510 | #if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1511 | static struct clk *gpio_iclks[OMAP34XX_NR_GPIOS]; |
| 1512 | #endif |
| 1513 | |
David Brownell | 8ba55c5 | 2008-02-26 11:10:50 -0800 | [diff] [blame] | 1514 | /* This lock class tells lockdep that GPIO irqs are in a different |
| 1515 | * category than their parents, so it won't report false recursion. |
| 1516 | */ |
| 1517 | static struct lock_class_key gpio_lock_class; |
| 1518 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1519 | static int __init _omap_gpio_init(void) |
| 1520 | { |
| 1521 | int i; |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 1522 | int gpio = 0; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1523 | struct gpio_bank *bank; |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1524 | char clk_name[11]; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1525 | |
| 1526 | initialized = 1; |
| 1527 | |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1528 | #if defined(CONFIG_ARCH_OMAP1) |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 1529 | if (cpu_is_omap15xx()) { |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1530 | gpio_ick = clk_get(NULL, "arm_gpio_ck"); |
| 1531 | if (IS_ERR(gpio_ick)) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1532 | printk("Could not get arm_gpio_ck\n"); |
| 1533 | else |
Tony Lindgren | 30ff720 | 2006-01-17 15:33:51 -0800 | [diff] [blame] | 1534 | clk_enable(gpio_ick); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1535 | } |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1536 | #endif |
| 1537 | #if defined(CONFIG_ARCH_OMAP2) |
| 1538 | if (cpu_class_is_omap2()) { |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1539 | gpio_ick = clk_get(NULL, "gpios_ick"); |
| 1540 | if (IS_ERR(gpio_ick)) |
| 1541 | printk("Could not get gpios_ick\n"); |
| 1542 | else |
Tony Lindgren | 30ff720 | 2006-01-17 15:33:51 -0800 | [diff] [blame] | 1543 | clk_enable(gpio_ick); |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1544 | gpio_fck = clk_get(NULL, "gpios_fck"); |
Komal Shah | 1630b52 | 2006-09-25 12:51:08 +0300 | [diff] [blame] | 1545 | if (IS_ERR(gpio_fck)) |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1546 | printk("Could not get gpios_fck\n"); |
| 1547 | else |
Tony Lindgren | 30ff720 | 2006-01-17 15:33:51 -0800 | [diff] [blame] | 1548 | clk_enable(gpio_fck); |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 1549 | |
| 1550 | /* |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1551 | * On 2430 & 3430 GPIO 5 uses CORE L4 ICLK |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 1552 | */ |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1553 | #if defined(CONFIG_ARCH_OMAP2430) |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 1554 | if (cpu_is_omap2430()) { |
| 1555 | gpio5_ick = clk_get(NULL, "gpio5_ick"); |
| 1556 | if (IS_ERR(gpio5_ick)) |
| 1557 | printk("Could not get gpio5_ick\n"); |
| 1558 | else |
| 1559 | clk_enable(gpio5_ick); |
| 1560 | gpio5_fck = clk_get(NULL, "gpio5_fck"); |
| 1561 | if (IS_ERR(gpio5_fck)) |
| 1562 | printk("Could not get gpio5_fck\n"); |
| 1563 | else |
| 1564 | clk_enable(gpio5_fck); |
| 1565 | } |
| 1566 | #endif |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1567 | } |
| 1568 | #endif |
| 1569 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1570 | #if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) |
| 1571 | if (cpu_is_omap34xx() || cpu_is_omap44xx()) { |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1572 | for (i = 0; i < OMAP34XX_NR_GPIOS; i++) { |
| 1573 | sprintf(clk_name, "gpio%d_ick", i + 1); |
| 1574 | gpio_iclks[i] = clk_get(NULL, clk_name); |
| 1575 | if (IS_ERR(gpio_iclks[i])) |
| 1576 | printk(KERN_ERR "Could not get %s\n", clk_name); |
| 1577 | else |
| 1578 | clk_enable(gpio_iclks[i]); |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1579 | } |
| 1580 | } |
| 1581 | #endif |
| 1582 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1583 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 1584 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 6e60e79 | 2006-04-02 17:46:23 +0100 | [diff] [blame] | 1585 | if (cpu_is_omap15xx()) { |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1586 | printk(KERN_INFO "OMAP1510 GPIO hardware\n"); |
| 1587 | gpio_bank_count = 2; |
| 1588 | gpio_bank = gpio_bank_1510; |
| 1589 | } |
| 1590 | #endif |
| 1591 | #if defined(CONFIG_ARCH_OMAP16XX) |
| 1592 | if (cpu_is_omap16xx()) { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1593 | u32 rev; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1594 | |
| 1595 | gpio_bank_count = 5; |
| 1596 | gpio_bank = gpio_bank_1610; |
Russell King | 7c7095a | 2008-09-05 15:49:14 +0100 | [diff] [blame] | 1597 | rev = __raw_readw(gpio_bank[1].base + OMAP1610_GPIO_REVISION); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1598 | printk(KERN_INFO "OMAP GPIO hardware version %d.%d\n", |
| 1599 | (rev >> 4) & 0x0f, rev & 0x0f); |
| 1600 | } |
| 1601 | #endif |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 1602 | #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) |
| 1603 | if (cpu_is_omap7xx()) { |
| 1604 | printk(KERN_INFO "OMAP7XX GPIO hardware\n"); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1605 | gpio_bank_count = 7; |
| 1606 | gpio_bank = gpio_bank_730; |
| 1607 | } |
| 1608 | #endif |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1609 | #ifdef CONFIG_ARCH_OMAP24XX |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 1610 | if (cpu_is_omap242x()) { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1611 | int rev; |
| 1612 | |
| 1613 | gpio_bank_count = 4; |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 1614 | gpio_bank = gpio_bank_242x; |
Russell King | 7c7095a | 2008-09-05 15:49:14 +0100 | [diff] [blame] | 1615 | rev = __raw_readl(gpio_bank[0].base + OMAP24XX_GPIO_REVISION); |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 1616 | printk(KERN_INFO "OMAP242x GPIO hardware version %d.%d\n", |
| 1617 | (rev >> 4) & 0x0f, rev & 0x0f); |
| 1618 | } |
| 1619 | if (cpu_is_omap243x()) { |
| 1620 | int rev; |
| 1621 | |
| 1622 | gpio_bank_count = 5; |
| 1623 | gpio_bank = gpio_bank_243x; |
Russell King | 7c7095a | 2008-09-05 15:49:14 +0100 | [diff] [blame] | 1624 | rev = __raw_readl(gpio_bank[0].base + OMAP24XX_GPIO_REVISION); |
Syed Mohammed Khasim | 56a2564 | 2006-12-06 17:14:08 -0800 | [diff] [blame] | 1625 | printk(KERN_INFO "OMAP243x GPIO hardware version %d.%d\n", |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1626 | (rev >> 4) & 0x0f, rev & 0x0f); |
| 1627 | } |
| 1628 | #endif |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1629 | #ifdef CONFIG_ARCH_OMAP34XX |
| 1630 | if (cpu_is_omap34xx()) { |
| 1631 | int rev; |
| 1632 | |
| 1633 | gpio_bank_count = OMAP34XX_NR_GPIOS; |
| 1634 | gpio_bank = gpio_bank_34xx; |
Russell King | 7c7095a | 2008-09-05 15:49:14 +0100 | [diff] [blame] | 1635 | rev = __raw_readl(gpio_bank[0].base + OMAP24XX_GPIO_REVISION); |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1636 | printk(KERN_INFO "OMAP34xx GPIO hardware version %d.%d\n", |
| 1637 | (rev >> 4) & 0x0f, rev & 0x0f); |
| 1638 | } |
| 1639 | #endif |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1640 | #ifdef CONFIG_ARCH_OMAP4 |
| 1641 | if (cpu_is_omap44xx()) { |
| 1642 | int rev; |
| 1643 | |
| 1644 | gpio_bank_count = OMAP34XX_NR_GPIOS; |
| 1645 | gpio_bank = gpio_bank_44xx; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1646 | rev = __raw_readl(gpio_bank[0].base + OMAP4_GPIO_REVISION); |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1647 | printk(KERN_INFO "OMAP44xx GPIO hardware version %d.%d\n", |
| 1648 | (rev >> 4) & 0x0f, rev & 0x0f); |
| 1649 | } |
| 1650 | #endif |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1651 | for (i = 0; i < gpio_bank_count; i++) { |
| 1652 | int j, gpio_count = 16; |
| 1653 | |
| 1654 | bank = &gpio_bank[i]; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1655 | spin_lock_init(&bank->lock); |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1656 | if (bank_is_mpuio(bank)) |
Russell King | 7c7095a | 2008-09-05 15:49:14 +0100 | [diff] [blame] | 1657 | __raw_writew(0xffff, bank->base + OMAP_MPUIO_GPIO_MASKIT); |
Tony Lindgren | d11ac97 | 2008-01-12 15:35:04 -0800 | [diff] [blame] | 1658 | if (cpu_is_omap15xx() && bank->method == METHOD_GPIO_1510) { |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1659 | __raw_writew(0xffff, bank->base + OMAP1510_GPIO_INT_MASK); |
| 1660 | __raw_writew(0x0000, bank->base + OMAP1510_GPIO_INT_STATUS); |
| 1661 | } |
Tony Lindgren | d11ac97 | 2008-01-12 15:35:04 -0800 | [diff] [blame] | 1662 | if (cpu_is_omap16xx() && bank->method == METHOD_GPIO_1610) { |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1663 | __raw_writew(0x0000, bank->base + OMAP1610_GPIO_IRQENABLE1); |
| 1664 | __raw_writew(0xffff, bank->base + OMAP1610_GPIO_IRQSTATUS1); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1665 | __raw_writew(0x0014, bank->base + OMAP1610_GPIO_SYSCONFIG); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1666 | } |
Zebediah C. McClure | 56739a6 | 2009-03-23 18:07:40 -0700 | [diff] [blame] | 1667 | if (cpu_is_omap7xx() && bank->method == METHOD_GPIO_730) { |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1668 | __raw_writel(0xffffffff, bank->base + OMAP730_GPIO_INT_MASK); |
| 1669 | __raw_writel(0x00000000, bank->base + OMAP730_GPIO_INT_STATUS); |
| 1670 | |
| 1671 | gpio_count = 32; /* 730 has 32-bit GPIOs */ |
| 1672 | } |
Tony Lindgren | d11ac97 | 2008-01-12 15:35:04 -0800 | [diff] [blame] | 1673 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1674 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ |
| 1675 | defined(CONFIG_ARCH_OMAP4) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1676 | if (bank->method == METHOD_GPIO_24XX) { |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1677 | static const u32 non_wakeup_gpios[] = { |
| 1678 | 0xe203ffc0, 0x08700040 |
| 1679 | }; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1680 | if (cpu_is_omap44xx()) { |
| 1681 | __raw_writel(0xffffffff, bank->base + |
| 1682 | OMAP4_GPIO_IRQSTATUSCLR0); |
| 1683 | __raw_writew(0x0015, bank->base + |
| 1684 | OMAP4_GPIO_SYSCONFIG); |
| 1685 | __raw_writel(0x00000000, bank->base + |
| 1686 | OMAP4_GPIO_DEBOUNCENABLE); |
| 1687 | /* Initialize interface clock ungated, module enabled */ |
| 1688 | __raw_writel(0, bank->base + OMAP4_GPIO_CTRL); |
| 1689 | } else { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1690 | __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_IRQENABLE1); |
| 1691 | __raw_writel(0xffffffff, bank->base + OMAP24XX_GPIO_IRQSTATUS1); |
Juha Yrjola | 14f1c3b | 2006-12-06 17:13:48 -0800 | [diff] [blame] | 1692 | __raw_writew(0x0015, bank->base + OMAP24XX_GPIO_SYSCONFIG); |
janboe | cb5793d | 2009-06-23 13:30:25 +0300 | [diff] [blame] | 1693 | __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_DEBOUNCE_EN); |
Juha Yrjola | 14f1c3b | 2006-12-06 17:13:48 -0800 | [diff] [blame] | 1694 | |
| 1695 | /* Initialize interface clock ungated, module enabled */ |
| 1696 | __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL); |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1697 | } |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1698 | if (i < ARRAY_SIZE(non_wakeup_gpios)) |
| 1699 | bank->non_wakeup_gpios = non_wakeup_gpios[i]; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1700 | gpio_count = 32; |
| 1701 | } |
| 1702 | #endif |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 1703 | /* REVISIT eventually switch from OMAP-specific gpio structs |
| 1704 | * over to the generic ones |
| 1705 | */ |
Jarkko Nikula | 3ff164e | 2008-12-10 17:35:27 -0800 | [diff] [blame] | 1706 | bank->chip.request = omap_gpio_request; |
| 1707 | bank->chip.free = omap_gpio_free; |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 1708 | bank->chip.direction_input = gpio_input; |
| 1709 | bank->chip.get = gpio_get; |
| 1710 | bank->chip.direction_output = gpio_output; |
| 1711 | bank->chip.set = gpio_set; |
David Brownell | a007b70 | 2008-12-10 17:35:25 -0800 | [diff] [blame] | 1712 | bank->chip.to_irq = gpio_2irq; |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 1713 | if (bank_is_mpuio(bank)) { |
| 1714 | bank->chip.label = "mpuio"; |
Russell King | 69114a4 | 2008-09-03 10:15:26 +0100 | [diff] [blame] | 1715 | #ifdef CONFIG_ARCH_OMAP16XX |
David Brownell | d8f388d | 2008-07-25 01:46:07 -0700 | [diff] [blame] | 1716 | bank->chip.dev = &omap_mpuio_device.dev; |
| 1717 | #endif |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 1718 | bank->chip.base = OMAP_MPUIO(0); |
| 1719 | } else { |
| 1720 | bank->chip.label = "gpio"; |
| 1721 | bank->chip.base = gpio; |
| 1722 | gpio += gpio_count; |
| 1723 | } |
| 1724 | bank->chip.ngpio = gpio_count; |
| 1725 | |
| 1726 | gpiochip_add(&bank->chip); |
| 1727 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1728 | for (j = bank->virtual_irq_start; |
| 1729 | j < bank->virtual_irq_start + gpio_count; j++) { |
David Brownell | 8ba55c5 | 2008-02-26 11:10:50 -0800 | [diff] [blame] | 1730 | lockdep_set_class(&irq_desc[j].lock, &gpio_lock_class); |
David Brownell | 5878101 | 2006-12-06 17:14:10 -0800 | [diff] [blame] | 1731 | set_irq_chip_data(j, bank); |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1732 | if (bank_is_mpuio(bank)) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1733 | set_irq_chip(j, &mpuio_irq_chip); |
| 1734 | else |
| 1735 | set_irq_chip(j, &gpio_irq_chip); |
Russell King | 10dd5ce | 2006-11-23 11:41:32 +0000 | [diff] [blame] | 1736 | set_irq_handler(j, handle_simple_irq); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1737 | set_irq_flags(j, IRQF_VALID); |
| 1738 | } |
| 1739 | set_irq_chained_handler(bank->irq, gpio_irq_handler); |
| 1740 | set_irq_data(bank->irq, bank); |
Jouni Hogander | 89db948 | 2008-12-10 17:35:24 -0800 | [diff] [blame] | 1741 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1742 | if (cpu_is_omap34xx() || cpu_is_omap44xx()) { |
Jouni Hogander | 89db948 | 2008-12-10 17:35:24 -0800 | [diff] [blame] | 1743 | sprintf(clk_name, "gpio%d_dbck", i + 1); |
| 1744 | bank->dbck = clk_get(NULL, clk_name); |
| 1745 | if (IS_ERR(bank->dbck)) |
| 1746 | printk(KERN_ERR "Could not get %s\n", clk_name); |
| 1747 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1748 | } |
| 1749 | |
| 1750 | /* Enable system clock for GPIO module. |
| 1751 | * The CAM_CLK_CTRL *is* really the right place. */ |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1752 | if (cpu_is_omap16xx()) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1753 | omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04, ULPD_CAM_CLK_CTRL); |
| 1754 | |
Juha Yrjola | 14f1c3b | 2006-12-06 17:13:48 -0800 | [diff] [blame] | 1755 | /* Enable autoidle for the OCP interface */ |
| 1756 | if (cpu_is_omap24xx()) |
| 1757 | omap_writel(1 << 0, 0x48019010); |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1758 | if (cpu_is_omap34xx()) |
| 1759 | omap_writel(1 << 0, 0x48306814); |
Tony Lindgren | d11ac97 | 2008-01-12 15:35:04 -0800 | [diff] [blame] | 1760 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 1761 | return 0; |
| 1762 | } |
| 1763 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1764 | #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || \ |
| 1765 | defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP4) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1766 | static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg) |
| 1767 | { |
| 1768 | int i; |
| 1769 | |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1770 | if (!cpu_class_is_omap2() && !cpu_is_omap16xx()) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1771 | return 0; |
| 1772 | |
| 1773 | for (i = 0; i < gpio_bank_count; i++) { |
| 1774 | struct gpio_bank *bank = &gpio_bank[i]; |
| 1775 | void __iomem *wake_status; |
| 1776 | void __iomem *wake_clear; |
| 1777 | void __iomem *wake_set; |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1778 | unsigned long flags; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1779 | |
| 1780 | switch (bank->method) { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1781 | #ifdef CONFIG_ARCH_OMAP16XX |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1782 | case METHOD_GPIO_1610: |
| 1783 | wake_status = bank->base + OMAP1610_GPIO_WAKEUPENABLE; |
| 1784 | wake_clear = bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA; |
| 1785 | wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA; |
| 1786 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1787 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1788 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1789 | case METHOD_GPIO_24XX: |
Tero Kristo | 723fdb7 | 2008-11-26 14:35:16 -0800 | [diff] [blame] | 1790 | wake_status = bank->base + OMAP24XX_GPIO_WAKE_EN; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1791 | wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA; |
| 1792 | wake_set = bank->base + OMAP24XX_GPIO_SETWKUENA; |
| 1793 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1794 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1795 | #ifdef CONFIG_ARCH_OMAP4 |
| 1796 | case METHOD_GPIO_24XX: |
| 1797 | wake_status = bank->base + OMAP4_GPIO_IRQWAKEN0; |
| 1798 | wake_clear = bank->base + OMAP4_GPIO_IRQWAKEN0; |
| 1799 | wake_set = bank->base + OMAP4_GPIO_IRQWAKEN0; |
| 1800 | break; |
| 1801 | #endif |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1802 | default: |
| 1803 | continue; |
| 1804 | } |
| 1805 | |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1806 | spin_lock_irqsave(&bank->lock, flags); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1807 | bank->saved_wakeup = __raw_readl(wake_status); |
| 1808 | __raw_writel(0xffffffff, wake_clear); |
| 1809 | __raw_writel(bank->suspend_wakeup, wake_set); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1810 | spin_unlock_irqrestore(&bank->lock, flags); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1811 | } |
| 1812 | |
| 1813 | return 0; |
| 1814 | } |
| 1815 | |
| 1816 | static int omap_gpio_resume(struct sys_device *dev) |
| 1817 | { |
| 1818 | int i; |
| 1819 | |
Tero Kristo | 723fdb7 | 2008-11-26 14:35:16 -0800 | [diff] [blame] | 1820 | if (!cpu_class_is_omap2() && !cpu_is_omap16xx()) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1821 | return 0; |
| 1822 | |
| 1823 | for (i = 0; i < gpio_bank_count; i++) { |
| 1824 | struct gpio_bank *bank = &gpio_bank[i]; |
| 1825 | void __iomem *wake_clear; |
| 1826 | void __iomem *wake_set; |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1827 | unsigned long flags; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1828 | |
| 1829 | switch (bank->method) { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1830 | #ifdef CONFIG_ARCH_OMAP16XX |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1831 | case METHOD_GPIO_1610: |
| 1832 | wake_clear = bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA; |
| 1833 | wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA; |
| 1834 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1835 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1836 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1837 | case METHOD_GPIO_24XX: |
Tony Lindgren | 0d9356c | 2006-09-25 12:41:45 +0300 | [diff] [blame] | 1838 | wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA; |
| 1839 | wake_set = bank->base + OMAP24XX_GPIO_SETWKUENA; |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1840 | break; |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 1841 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1842 | #ifdef CONFIG_ARCH_OMAP4 |
| 1843 | case METHOD_GPIO_24XX: |
| 1844 | wake_clear = bank->base + OMAP4_GPIO_IRQWAKEN0; |
| 1845 | wake_set = bank->base + OMAP4_GPIO_IRQWAKEN0; |
| 1846 | break; |
| 1847 | #endif |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1848 | default: |
| 1849 | continue; |
| 1850 | } |
| 1851 | |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1852 | spin_lock_irqsave(&bank->lock, flags); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1853 | __raw_writel(0xffffffff, wake_clear); |
| 1854 | __raw_writel(bank->saved_wakeup, wake_set); |
David Brownell | a647253 | 2008-03-03 04:33:30 -0800 | [diff] [blame] | 1855 | spin_unlock_irqrestore(&bank->lock, flags); |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1856 | } |
| 1857 | |
| 1858 | return 0; |
| 1859 | } |
| 1860 | |
| 1861 | static struct sysdev_class omap_gpio_sysclass = { |
Kay Sievers | af5ca3f | 2007-12-20 02:09:39 +0100 | [diff] [blame] | 1862 | .name = "gpio", |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 1863 | .suspend = omap_gpio_suspend, |
| 1864 | .resume = omap_gpio_resume, |
| 1865 | }; |
| 1866 | |
| 1867 | static struct sys_device omap_gpio_device = { |
| 1868 | .id = 0, |
| 1869 | .cls = &omap_gpio_sysclass, |
| 1870 | }; |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1871 | |
| 1872 | #endif |
| 1873 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 1874 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \ |
| 1875 | defined(CONFIG_ARCH_OMAP4) |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1876 | |
| 1877 | static int workaround_enabled; |
| 1878 | |
| 1879 | void omap2_gpio_prepare_for_retention(void) |
| 1880 | { |
| 1881 | int i, c = 0; |
| 1882 | |
| 1883 | /* Remove triggering for all non-wakeup GPIOs. Otherwise spurious |
| 1884 | * IRQs will be generated. See OMAP2420 Errata item 1.101. */ |
| 1885 | for (i = 0; i < gpio_bank_count; i++) { |
| 1886 | struct gpio_bank *bank = &gpio_bank[i]; |
| 1887 | u32 l1, l2; |
| 1888 | |
| 1889 | if (!(bank->enabled_non_wakeup_gpios)) |
| 1890 | continue; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1891 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1892 | bank->saved_datain = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); |
| 1893 | l1 = __raw_readl(bank->base + OMAP24XX_GPIO_FALLINGDETECT); |
| 1894 | l2 = __raw_readl(bank->base + OMAP24XX_GPIO_RISINGDETECT); |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1895 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1896 | #ifdef CONFIG_ARCH_OMAP4 |
| 1897 | bank->saved_datain = __raw_readl(bank->base + |
| 1898 | OMAP4_GPIO_DATAIN); |
| 1899 | l1 = __raw_readl(bank->base + OMAP4_GPIO_FALLINGDETECT); |
| 1900 | l2 = __raw_readl(bank->base + OMAP4_GPIO_RISINGDETECT); |
| 1901 | #endif |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1902 | bank->saved_fallingdetect = l1; |
| 1903 | bank->saved_risingdetect = l2; |
| 1904 | l1 &= ~bank->enabled_non_wakeup_gpios; |
| 1905 | l2 &= ~bank->enabled_non_wakeup_gpios; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1906 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1907 | __raw_writel(l1, bank->base + OMAP24XX_GPIO_FALLINGDETECT); |
| 1908 | __raw_writel(l2, bank->base + OMAP24XX_GPIO_RISINGDETECT); |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1909 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1910 | #ifdef CONFIG_ARCH_OMAP4 |
| 1911 | __raw_writel(l1, bank->base + OMAP4_GPIO_FALLINGDETECT); |
| 1912 | __raw_writel(l2, bank->base + OMAP4_GPIO_RISINGDETECT); |
| 1913 | #endif |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1914 | c++; |
| 1915 | } |
| 1916 | if (!c) { |
| 1917 | workaround_enabled = 0; |
| 1918 | return; |
| 1919 | } |
| 1920 | workaround_enabled = 1; |
| 1921 | } |
| 1922 | |
| 1923 | void omap2_gpio_resume_after_retention(void) |
| 1924 | { |
| 1925 | int i; |
| 1926 | |
| 1927 | if (!workaround_enabled) |
| 1928 | return; |
| 1929 | for (i = 0; i < gpio_bank_count; i++) { |
| 1930 | struct gpio_bank *bank = &gpio_bank[i]; |
Eero Nurkkala | 82dbb9d | 2009-08-28 10:51:36 -0700 | [diff] [blame] | 1931 | u32 l, gen, gen0, gen1; |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1932 | |
| 1933 | if (!(bank->enabled_non_wakeup_gpios)) |
| 1934 | continue; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1935 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1936 | __raw_writel(bank->saved_fallingdetect, |
| 1937 | bank->base + OMAP24XX_GPIO_FALLINGDETECT); |
| 1938 | __raw_writel(bank->saved_risingdetect, |
| 1939 | bank->base + OMAP24XX_GPIO_RISINGDETECT); |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1940 | l = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); |
| 1941 | #endif |
| 1942 | #ifdef CONFIG_ARCH_OMAP4 |
| 1943 | __raw_writel(bank->saved_fallingdetect, |
| 1944 | bank->base + OMAP4_GPIO_FALLINGDETECT); |
| 1945 | __raw_writel(bank->saved_risingdetect, |
| 1946 | bank->base + OMAP4_GPIO_RISINGDETECT); |
| 1947 | l = __raw_readl(bank->base + OMAP4_GPIO_DATAIN); |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1948 | #endif |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1949 | /* Check if any of the non-wakeup interrupt GPIOs have changed |
| 1950 | * state. If so, generate an IRQ by software. This is |
| 1951 | * horribly racy, but it's the best we can do to work around |
| 1952 | * this silicon bug. */ |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1953 | l ^= bank->saved_datain; |
| 1954 | l &= bank->non_wakeup_gpios; |
Eero Nurkkala | 82dbb9d | 2009-08-28 10:51:36 -0700 | [diff] [blame] | 1955 | |
| 1956 | /* |
| 1957 | * No need to generate IRQs for the rising edge for gpio IRQs |
| 1958 | * configured with falling edge only; and vice versa. |
| 1959 | */ |
| 1960 | gen0 = l & bank->saved_fallingdetect; |
| 1961 | gen0 &= bank->saved_datain; |
| 1962 | |
| 1963 | gen1 = l & bank->saved_risingdetect; |
| 1964 | gen1 &= ~(bank->saved_datain); |
| 1965 | |
| 1966 | /* FIXME: Consider GPIO IRQs with level detections properly! */ |
| 1967 | gen = l & (~(bank->saved_fallingdetect) & |
| 1968 | ~(bank->saved_risingdetect)); |
| 1969 | /* Consider all GPIO IRQs needed to be updated */ |
| 1970 | gen |= gen0 | gen1; |
| 1971 | |
| 1972 | if (gen) { |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1973 | u32 old0, old1; |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1974 | #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1975 | old0 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0); |
| 1976 | old1 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1); |
Eero Nurkkala | 82dbb9d | 2009-08-28 10:51:36 -0700 | [diff] [blame] | 1977 | __raw_writel(old0 | gen, bank->base + |
| 1978 | OMAP24XX_GPIO_LEVELDETECT0); |
| 1979 | __raw_writel(old1 | gen, bank->base + |
| 1980 | OMAP24XX_GPIO_LEVELDETECT1); |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1981 | __raw_writel(old0, bank->base + OMAP24XX_GPIO_LEVELDETECT0); |
| 1982 | __raw_writel(old1, bank->base + OMAP24XX_GPIO_LEVELDETECT1); |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 1983 | #endif |
Syed Rafiuddin | 78a1a6d | 2009-07-28 18:57:30 +0530 | [diff] [blame] | 1984 | #ifdef CONFIG_ARCH_OMAP4 |
| 1985 | old0 = __raw_readl(bank->base + |
| 1986 | OMAP4_GPIO_LEVELDETECT0); |
| 1987 | old1 = __raw_readl(bank->base + |
| 1988 | OMAP4_GPIO_LEVELDETECT1); |
| 1989 | __raw_writel(old0 | l, bank->base + |
| 1990 | OMAP4_GPIO_LEVELDETECT0); |
| 1991 | __raw_writel(old1 | l, bank->base + |
| 1992 | OMAP4_GPIO_LEVELDETECT1); |
| 1993 | __raw_writel(old0, bank->base + |
| 1994 | OMAP4_GPIO_LEVELDETECT0); |
| 1995 | __raw_writel(old1, bank->base + |
| 1996 | OMAP4_GPIO_LEVELDETECT1); |
| 1997 | #endif |
Juha Yrjola | 3ac4fa9 | 2006-12-06 17:13:52 -0800 | [diff] [blame] | 1998 | } |
| 1999 | } |
| 2000 | |
| 2001 | } |
| 2002 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 2003 | #endif |
| 2004 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 2005 | /* |
| 2006 | * This may get called early from board specific init |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 2007 | * for boards that have interrupts routed via FPGA. |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 2008 | */ |
David Brownell | 277d58e | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 2009 | int __init omap_gpio_init(void) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 2010 | { |
| 2011 | if (!initialized) |
| 2012 | return _omap_gpio_init(); |
| 2013 | else |
| 2014 | return 0; |
| 2015 | } |
| 2016 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 2017 | static int __init omap_gpio_sysinit(void) |
| 2018 | { |
| 2019 | int ret = 0; |
| 2020 | |
| 2021 | if (!initialized) |
| 2022 | ret = _omap_gpio_init(); |
| 2023 | |
David Brownell | 11a78b7 | 2006-12-06 17:14:11 -0800 | [diff] [blame] | 2024 | mpuio_init(); |
| 2025 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 2026 | #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || \ |
| 2027 | defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP4) |
Syed Mohammed, Khasim | 5492fb1 | 2007-11-29 16:15:11 -0800 | [diff] [blame] | 2028 | if (cpu_is_omap16xx() || cpu_class_is_omap2()) { |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 2029 | if (ret == 0) { |
| 2030 | ret = sysdev_class_register(&omap_gpio_sysclass); |
| 2031 | if (ret == 0) |
| 2032 | ret = sysdev_register(&omap_gpio_device); |
| 2033 | } |
| 2034 | } |
| 2035 | #endif |
| 2036 | |
| 2037 | return ret; |
| 2038 | } |
| 2039 | |
Tony Lindgren | 92105bb | 2005-09-07 17:20:26 +0100 | [diff] [blame] | 2040 | arch_initcall(omap_gpio_sysinit); |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2041 | |
| 2042 | |
| 2043 | #ifdef CONFIG_DEBUG_FS |
| 2044 | |
| 2045 | #include <linux/debugfs.h> |
| 2046 | #include <linux/seq_file.h> |
| 2047 | |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2048 | static int dbg_gpio_show(struct seq_file *s, void *unused) |
| 2049 | { |
| 2050 | unsigned i, j, gpio; |
| 2051 | |
| 2052 | for (i = 0, gpio = 0; i < gpio_bank_count; i++) { |
| 2053 | struct gpio_bank *bank = gpio_bank + i; |
| 2054 | unsigned bankwidth = 16; |
| 2055 | u32 mask = 1; |
| 2056 | |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 2057 | if (bank_is_mpuio(bank)) |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2058 | gpio = OMAP_MPUIO(0); |
Alistair Buxton | b718aa8 | 2009-09-23 18:56:19 +0100 | [diff] [blame^] | 2059 | else if (cpu_class_is_omap2() || cpu_is_omap7xx()) |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2060 | bankwidth = 32; |
| 2061 | |
| 2062 | for (j = 0; j < bankwidth; j++, gpio++, mask <<= 1) { |
| 2063 | unsigned irq, value, is_in, irqstat; |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 2064 | const char *label; |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2065 | |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 2066 | label = gpiochip_is_requested(&bank->chip, j); |
| 2067 | if (!label) |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2068 | continue; |
| 2069 | |
| 2070 | irq = bank->virtual_irq_start + j; |
David Brownell | 0b84b5c | 2008-12-10 17:35:25 -0800 | [diff] [blame] | 2071 | value = gpio_get_value(gpio); |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2072 | is_in = gpio_is_input(bank, mask); |
| 2073 | |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 2074 | if (bank_is_mpuio(bank)) |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 2075 | seq_printf(s, "MPUIO %2d ", j); |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2076 | else |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 2077 | seq_printf(s, "GPIO %3d ", gpio); |
Jarkko Nikula | 21c867f | 2008-12-10 17:35:24 -0800 | [diff] [blame] | 2078 | seq_printf(s, "(%-20.20s): %s %s", |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 2079 | label, |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2080 | is_in ? "in " : "out", |
| 2081 | value ? "hi" : "lo"); |
| 2082 | |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 2083 | /* FIXME for at least omap2, show pullup/pulldown state */ |
| 2084 | |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2085 | irqstat = irq_desc[irq].status; |
Tony Lindgren | 3a26e33 | 2009-01-15 13:09:53 +0200 | [diff] [blame] | 2086 | #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || \ |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 2087 | defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP4) |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2088 | if (is_in && ((bank->suspend_wakeup & mask) |
| 2089 | || irqstat & IRQ_TYPE_SENSE_MASK)) { |
| 2090 | char *trigger = NULL; |
| 2091 | |
| 2092 | switch (irqstat & IRQ_TYPE_SENSE_MASK) { |
| 2093 | case IRQ_TYPE_EDGE_FALLING: |
| 2094 | trigger = "falling"; |
| 2095 | break; |
| 2096 | case IRQ_TYPE_EDGE_RISING: |
| 2097 | trigger = "rising"; |
| 2098 | break; |
| 2099 | case IRQ_TYPE_EDGE_BOTH: |
| 2100 | trigger = "bothedge"; |
| 2101 | break; |
| 2102 | case IRQ_TYPE_LEVEL_LOW: |
| 2103 | trigger = "low"; |
| 2104 | break; |
| 2105 | case IRQ_TYPE_LEVEL_HIGH: |
| 2106 | trigger = "high"; |
| 2107 | break; |
| 2108 | case IRQ_TYPE_NONE: |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 2109 | trigger = "(?)"; |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2110 | break; |
| 2111 | } |
David Brownell | 52e3134 | 2008-03-03 12:43:23 -0800 | [diff] [blame] | 2112 | seq_printf(s, ", irq-%d %-8s%s", |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2113 | irq, trigger, |
| 2114 | (bank->suspend_wakeup & mask) |
| 2115 | ? " wakeup" : ""); |
| 2116 | } |
Tony Lindgren | 3a26e33 | 2009-01-15 13:09:53 +0200 | [diff] [blame] | 2117 | #endif |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2118 | seq_printf(s, "\n"); |
| 2119 | } |
| 2120 | |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 2121 | if (bank_is_mpuio(bank)) { |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2122 | seq_printf(s, "\n"); |
| 2123 | gpio = 0; |
| 2124 | } |
| 2125 | } |
| 2126 | return 0; |
| 2127 | } |
| 2128 | |
| 2129 | static int dbg_gpio_open(struct inode *inode, struct file *file) |
| 2130 | { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 2131 | return single_open(file, dbg_gpio_show, &inode->i_private); |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2132 | } |
| 2133 | |
| 2134 | static const struct file_operations debug_fops = { |
| 2135 | .open = dbg_gpio_open, |
| 2136 | .read = seq_read, |
| 2137 | .llseek = seq_lseek, |
| 2138 | .release = single_release, |
| 2139 | }; |
| 2140 | |
| 2141 | static int __init omap_gpio_debuginit(void) |
| 2142 | { |
David Brownell | e5c56ed | 2006-12-06 17:13:59 -0800 | [diff] [blame] | 2143 | (void) debugfs_create_file("omap_gpio", S_IRUGO, |
| 2144 | NULL, NULL, &debug_fops); |
David Brownell | b9772a2 | 2006-12-06 17:13:53 -0800 | [diff] [blame] | 2145 | return 0; |
| 2146 | } |
| 2147 | late_initcall(omap_gpio_debuginit); |
| 2148 | #endif |