release/src-rt-6.x.4708/linux/linux-2.6.36/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/gpio.h>
  31 #include <linux/i2c.h>
  32 #include <linux/i2c-gpio.h>
  33
  34 #include <mach/hardware.h>
  35
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38
  39
  40 static void __init edb93xx_register_flash(void)
  41 {
  42         if (machine_is_edb9307() || machine_is_edb9312() ||
  43             machine_is_edb9315()) {
  44                 ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
  45         } else {
  46                 ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
  47         }
  48 }
  49
  50 static struct ep93xx_eth_data __initdata edb93xx_eth_data = {
  51         .phy_id         = 1,
  52 };
  53
  54
  55 /*************************************************************************
  56  * EDB93xx i2c peripheral handling
  57  *************************************************************************/
  58 static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data = {
  59         .sda_pin                = EP93XX_GPIO_LINE_EEDAT,
  60         .sda_is_open_drain      = 0,
  61         .scl_pin                = EP93XX_GPIO_LINE_EECLK,
  62         .scl_is_open_drain      = 0,
  63         .udelay                 = 0,    /* default to 100 kHz */
  64         .timeout                = 0,    /* default to 100 ms */
  65 };
  66
  67 static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = {
  68         {
  69                 I2C_BOARD_INFO("isl1208", 0x6f),
  70         },
  71 };
  72
  73 static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = {
  74         {
  75                 I2C_BOARD_INFO("ds1337", 0x68),
  76         },
  77 };
  78
  79 static void __init edb93xx_register_i2c(void)
  80 {
  81         if (machine_is_edb9302a() || machine_is_edb9307a() ||
  82             machine_is_edb9315a()) {
  83                 ep93xx_register_i2c(&edb93xx_i2c_gpio_data,
  84                                     edb93xxa_i2c_board_info,
  85                                     ARRAY_SIZE(edb93xxa_i2c_board_info));
  86         } else if (machine_is_edb9307() || machine_is_edb9312() ||
  87                    machine_is_edb9315()) {
  88                 ep93xx_register_i2c(&edb93xx_i2c_gpio_data,
  89                                     edb93xx_i2c_board_info,
  90                                     ARRAY_SIZE(edb93xx_i2c_board_info));
  91         }
  92 }
  93
  94
  95 /*************************************************************************
  96  * EDB93xx pwm
  97  *************************************************************************/
  98 static void __init edb93xx_register_pwm(void)
  99 {
 100         if (machine_is_edb9301() ||
 101             machine_is_edb9302() || machine_is_edb9302a()) {
 102                 /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
 103                 ep93xx_register_pwm(0, 1);
 104         } else if (machine_is_edb9307() || machine_is_edb9307a()) {
 105                 /* EP9307 only has pwm.0 (PWMOUT) */
 106                 ep93xx_register_pwm(1, 0);
 107         } else {
 108                 /* EP9312 and EP9315 have both */
 109                 ep93xx_register_pwm(1, 1);
 110         }
 111 }
 112
 113
 114 static void __init edb93xx_init_machine(void)
 115 {
 116         ep93xx_init_devices();
 117         edb93xx_register_flash();
 118         ep93xx_register_eth(&edb93xx_eth_data, 1);
 119         edb93xx_register_i2c();
 120         edb93xx_register_pwm();
 121 }
 122
 123
 124 #ifdef CONFIG_MACH_EDB9301
 125 MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board")
 126         /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
 127         .phys_io        = EP93XX_APB_PHYS_BASE,
 128         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 129         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 130         .map_io         = ep93xx_map_io,
 131         .init_irq       = ep93xx_init_irq,
 132         .timer          = &ep93xx_timer,
 133         .init_machine   = edb93xx_init_machine,
 134 MACHINE_END
 135 #endif
 136
 137 #ifdef CONFIG_MACH_EDB9302
 138 MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board")
 139         /* Maintainer: George Kashperko <george@chas.com.ua> */
 140         .phys_io        = EP93XX_APB_PHYS_BASE,
 141         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 142         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 143         .map_io         = ep93xx_map_io,
 144         .init_irq       = ep93xx_init_irq,
 145         .timer          = &ep93xx_timer,
 146         .init_machine   = edb93xx_init_machine,
 147 MACHINE_END
 148 #endif
 149
 150 #ifdef CONFIG_MACH_EDB9302A
 151 MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board")
 152         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
 153         .phys_io        = EP93XX_APB_PHYS_BASE,
 154         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 155         .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
 156         .map_io         = ep93xx_map_io,
 157         .init_irq       = ep93xx_init_irq,
 158         .timer          = &ep93xx_timer,
 159         .init_machine   = edb93xx_init_machine,
 160 MACHINE_END
 161 #endif
 162
 163 #ifdef CONFIG_MACH_EDB9307
 164 MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board")
 165         /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
 166         .phys_io        = EP93XX_APB_PHYS_BASE,
 167         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 168         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 169         .map_io         = ep93xx_map_io,
 170         .init_irq       = ep93xx_init_irq,
 171         .timer          = &ep93xx_timer,
 172         .init_machine   = edb93xx_init_machine,
 173 MACHINE_END
 174 #endif
 175
 176 #ifdef CONFIG_MACH_EDB9307A
 177 MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board")
 178         /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
 179         .phys_io        = EP93XX_APB_PHYS_BASE,
 180         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 181         .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
 182         .map_io         = ep93xx_map_io,
 183         .init_irq       = ep93xx_init_irq,
 184         .timer          = &ep93xx_timer,
 185         .init_machine   = edb93xx_init_machine,
 186 MACHINE_END
 187 #endif
 188
 189 #ifdef CONFIG_MACH_EDB9312
 190 MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board")
 191         /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
 192         .phys_io        = EP93XX_APB_PHYS_BASE,
 193         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 194         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 195         .map_io         = ep93xx_map_io,
 196         .init_irq       = ep93xx_init_irq,
 197         .timer          = &ep93xx_timer,
 198         .init_machine   = edb93xx_init_machine,
 199 MACHINE_END
 200 #endif
 201
 202 #ifdef CONFIG_MACH_EDB9315
 203 MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board")
 204         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
 205         .phys_io        = EP93XX_APB_PHYS_BASE,
 206         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 207         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 208         .map_io         = ep93xx_map_io,
 209         .init_irq       = ep93xx_init_irq,
 210         .timer          = &ep93xx_timer,
 211         .init_machine   = edb93xx_init_machine,
 212 MACHINE_END
 213 #endif
 214
 215 #ifdef CONFIG_MACH_EDB9315A
 216 MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board")
 217         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
 218         .phys_io        = EP93XX_APB_PHYS_BASE,
 219         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 220         .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
 221         .map_io         = ep93xx_map_io,
 222         .init_irq       = ep93xx_init_irq,
 223         .timer          = &ep93xx_timer,
 224         .init_machine   = edb93xx_init_machine,
 225 MACHINE_END
 226 #endif