1 /* 2 * arch/arm/mach-ep93xx/edb93xx.c 3 * Cirrus Logic EDB93xx Development Board support. 4 * 5 * EDB93XX, EDB9301, EDB9307A 6 * Copyright (C) 2008-2009 H Hartley Sweeten <hsweeten@visionengravers.com> 7 * 8 * EDB9302 9 * Copyright (C) 2006 George Kashperko <george@chas.com.ua> 10 * 11 * EDB9302A, EDB9315, EDB9315A 12 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> 13 * 14 * EDB9307 15 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org> 16 * 17 * EDB9312 18 * Copyright (C) 2006 Infosys Technologies Limited 19 * Toufeeq Hussain <toufeeq_hussain@infosys.com> 20 * 21 * This program is free software; you can redistribute it and/or modify 22 * it under the terms of the GNU General Public License as published by 23 * the Free Software Foundation; either version 2 of the License, or (at 24 * your option) any later version. 25 */ 26 27 #include <linux/kernel.h> 28 #include <linux/init.h> 29 #include <linux/platform_device.h> 30 #include <linux/i2c.h> 31 #include <linux/i2c-gpio.h> 32 #include <linux/spi/spi.h> 33 34 #include <sound/cs4271.h> 35 36 #include <mach/hardware.h> 37 #include <linux/platform_data/video-ep93xx.h> 38 #include <linux/platform_data/spi-ep93xx.h> 39 #include <mach/gpio-ep93xx.h> 40 41 #include <asm/mach-types.h> 42 #include <asm/mach/arch.h> 43 44 #include "soc.h" 45 46 static void __init edb93xx_register_flash(void) 47 { 48 if (machine_is_edb9307() || machine_is_edb9312() || 49 machine_is_edb9315()) { 50 ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M); 51 } else { 52 ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M); 53 } 54 } 55 56 static struct ep93xx_eth_data __initdata edb93xx_eth_data = { 57 .phy_id = 1, 58 }; 59 60 61 /************************************************************************* 62 * EDB93xx i2c peripheral handling 63 *************************************************************************/ 64 static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data = { 65 .sda_pin = EP93XX_GPIO_LINE_EEDAT, 66 .sda_is_open_drain = 0, 67 .scl_pin = EP93XX_GPIO_LINE_EECLK, 68 .scl_is_open_drain = 0, 69 .udelay = 0, /* default to 100 kHz */ 70 .timeout = 0, /* default to 100 ms */ 71 }; 72 73 static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = { 74 { 75 I2C_BOARD_INFO("isl1208", 0x6f), 76 }, 77 }; 78 79 static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = { 80 { 81 I2C_BOARD_INFO("ds1337", 0x68), 82 }, 83 }; 84 85 static void __init edb93xx_register_i2c(void) 86 { 87 if (machine_is_edb9302a() || machine_is_edb9307a() || 88 machine_is_edb9315a()) { 89 ep93xx_register_i2c(&edb93xx_i2c_gpio_data, 90 edb93xxa_i2c_board_info, 91 ARRAY_SIZE(edb93xxa_i2c_board_info)); 92 } else if (machine_is_edb9302() || machine_is_edb9307() 93 || machine_is_edb9312() || machine_is_edb9315()) { 94 ep93xx_register_i2c(&edb93xx_i2c_gpio_data, 95 edb93xx_i2c_board_info, 96 ARRAY_SIZE(edb93xx_i2c_board_info)); 97 } 98 } 99 100 101 /************************************************************************* 102 * EDB93xx SPI peripheral handling 103 *************************************************************************/ 104 static struct cs4271_platform_data edb93xx_cs4271_data = { 105 .gpio_nreset = -EINVAL, /* filled in later */ 106 }; 107 108 static struct spi_board_info edb93xx_spi_board_info[] __initdata = { 109 { 110 .modalias = "cs4271", 111 .platform_data = &edb93xx_cs4271_data, 112 .max_speed_hz = 6000000, 113 .bus_num = 0, 114 .chip_select = 0, 115 .mode = SPI_MODE_3, 116 }, 117 }; 118 119 static int edb93xx_spi_chipselects[] __initdata = { 120 EP93XX_GPIO_LINE_EGPIO6, 121 }; 122 123 static struct ep93xx_spi_info edb93xx_spi_info __initdata = { 124 .chipselect = edb93xx_spi_chipselects, 125 .num_chipselect = ARRAY_SIZE(edb93xx_spi_chipselects), 126 }; 127 128 static void __init edb93xx_register_spi(void) 129 { 130 if (machine_is_edb9301() || machine_is_edb9302()) 131 edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1; 132 else if (machine_is_edb9302a() || machine_is_edb9307a()) 133 edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2); 134 else if (machine_is_edb9315a()) 135 edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14; 136 137 ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info, 138 ARRAY_SIZE(edb93xx_spi_board_info)); 139 } 140 141 142 /************************************************************************* 143 * EDB93xx I2S 144 *************************************************************************/ 145 static struct platform_device edb93xx_audio_device = { 146 .name = "edb93xx-audio", 147 .id = -1, 148 }; 149 150 static int __init edb93xx_has_audio(void) 151 { 152 return (machine_is_edb9301() || machine_is_edb9302() || 153 machine_is_edb9302a() || machine_is_edb9307a() || 154 machine_is_edb9315a()); 155 } 156 157 static void __init edb93xx_register_i2s(void) 158 { 159 if (edb93xx_has_audio()) { 160 ep93xx_register_i2s(); 161 platform_device_register(&edb93xx_audio_device); 162 } 163 } 164 165 166 /************************************************************************* 167 * EDB93xx pwm 168 *************************************************************************/ 169 static void __init edb93xx_register_pwm(void) 170 { 171 if (machine_is_edb9301() || 172 machine_is_edb9302() || machine_is_edb9302a()) { 173 /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */ 174 ep93xx_register_pwm(0, 1); 175 } else if (machine_is_edb9307() || machine_is_edb9307a()) { 176 /* EP9307 only has pwm.0 (PWMOUT) */ 177 ep93xx_register_pwm(1, 0); 178 } else { 179 /* EP9312 and EP9315 have both */ 180 ep93xx_register_pwm(1, 1); 181 } 182 } 183 184 185 /************************************************************************* 186 * EDB93xx framebuffer 187 *************************************************************************/ 188 static struct ep93xxfb_mach_info __initdata edb93xxfb_info = { 189 .flags = 0, 190 }; 191 192 static int __init edb93xx_has_fb(void) 193 { 194 /* These platforms have an ep93xx with video capability */ 195 return machine_is_edb9307() || machine_is_edb9307a() || 196 machine_is_edb9312() || machine_is_edb9315() || 197 machine_is_edb9315a(); 198 } 199 200 static void __init edb93xx_register_fb(void) 201 { 202 if (!edb93xx_has_fb()) 203 return; 204 205 if (machine_is_edb9307a() || machine_is_edb9315a()) 206 edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0; 207 else 208 edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3; 209 210 ep93xx_register_fb(&edb93xxfb_info); 211 } 212 213 214 /************************************************************************* 215 * EDB93xx IDE 216 *************************************************************************/ 217 static int __init edb93xx_has_ide(void) 218 { 219 /* 220 * Although EDB9312 and EDB9315 do have IDE capability, they have 221 * INTRQ line wired as pull-up, which makes using IDE interface 222 * problematic. 223 */ 224 return machine_is_edb9312() || machine_is_edb9315() || 225 machine_is_edb9315a(); 226 } 227 228 static void __init edb93xx_register_ide(void) 229 { 230 if (!edb93xx_has_ide()) 231 return; 232 233 ep93xx_register_ide(); 234 } 235 236 237 static void __init edb93xx_init_machine(void) 238 { 239 ep93xx_init_devices(); 240 edb93xx_register_flash(); 241 ep93xx_register_eth(&edb93xx_eth_data, 1); 242 edb93xx_register_i2c(); 243 edb93xx_register_spi(); 244 edb93xx_register_i2s(); 245 edb93xx_register_pwm(); 246 edb93xx_register_fb(); 247 edb93xx_register_ide(); 248 ep93xx_register_adc(); 249 } 250 251 252 #ifdef CONFIG_MACH_EDB9301 253 MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board") 254 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ 255 .atag_offset = 0x100, 256 .map_io = ep93xx_map_io, 257 .init_irq = ep93xx_init_irq, 258 .init_time = ep93xx_timer_init, 259 .init_machine = edb93xx_init_machine, 260 .init_late = ep93xx_init_late, 261 .restart = ep93xx_restart, 262 MACHINE_END 263 #endif 264 265 #ifdef CONFIG_MACH_EDB9302 266 MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board") 267 /* Maintainer: George Kashperko <george@chas.com.ua> */ 268 .atag_offset = 0x100, 269 .map_io = ep93xx_map_io, 270 .init_irq = ep93xx_init_irq, 271 .init_time = ep93xx_timer_init, 272 .init_machine = edb93xx_init_machine, 273 .init_late = ep93xx_init_late, 274 .restart = ep93xx_restart, 275 MACHINE_END 276 #endif 277 278 #ifdef CONFIG_MACH_EDB9302A 279 MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board") 280 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ 281 .atag_offset = 0x100, 282 .map_io = ep93xx_map_io, 283 .init_irq = ep93xx_init_irq, 284 .init_time = ep93xx_timer_init, 285 .init_machine = edb93xx_init_machine, 286 .init_late = ep93xx_init_late, 287 .restart = ep93xx_restart, 288 MACHINE_END 289 #endif 290 291 #ifdef CONFIG_MACH_EDB9307 292 MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board") 293 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ 294 .atag_offset = 0x100, 295 .map_io = ep93xx_map_io, 296 .init_irq = ep93xx_init_irq, 297 .init_time = ep93xx_timer_init, 298 .init_machine = edb93xx_init_machine, 299 .init_late = ep93xx_init_late, 300 .restart = ep93xx_restart, 301 MACHINE_END 302 #endif 303 304 #ifdef CONFIG_MACH_EDB9307A 305 MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board") 306 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ 307 .atag_offset = 0x100, 308 .map_io = ep93xx_map_io, 309 .init_irq = ep93xx_init_irq, 310 .init_time = ep93xx_timer_init, 311 .init_machine = edb93xx_init_machine, 312 .init_late = ep93xx_init_late, 313 .restart = ep93xx_restart, 314 MACHINE_END 315 #endif 316 317 #ifdef CONFIG_MACH_EDB9312 318 MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board") 319 /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */ 320 .atag_offset = 0x100, 321 .map_io = ep93xx_map_io, 322 .init_irq = ep93xx_init_irq, 323 .init_time = ep93xx_timer_init, 324 .init_machine = edb93xx_init_machine, 325 .init_late = ep93xx_init_late, 326 .restart = ep93xx_restart, 327 MACHINE_END 328 #endif 329 330 #ifdef CONFIG_MACH_EDB9315 331 MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board") 332 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ 333 .atag_offset = 0x100, 334 .map_io = ep93xx_map_io, 335 .init_irq = ep93xx_init_irq, 336 .init_time = ep93xx_timer_init, 337 .init_machine = edb93xx_init_machine, 338 .init_late = ep93xx_init_late, 339 .restart = ep93xx_restart, 340 MACHINE_END 341 #endif 342 343 #ifdef CONFIG_MACH_EDB9315A 344 MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board") 345 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ 346 .atag_offset = 0x100, 347 .map_io = ep93xx_map_io, 348 .init_irq = ep93xx_init_irq, 349 .init_time = ep93xx_timer_init, 350 .init_machine = edb93xx_init_machine, 351 .init_late = ep93xx_init_late, 352 .restart = ep93xx_restart, 353 MACHINE_END 354 #endif 355