arch/arm/mach-ep93xx/edb93xx.c

   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