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