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/mtd/physmap.h>
  31 #include <linux/gpio.h>
  32 #include <linux/i2c.h>
  33 #include <linux/i2c-gpio.h>
  34
  35 #include <mach/hardware.h>
  36
  37 #include <asm/mach-types.h>
  38 #include <asm/mach/arch.h>
  39
  40
  41 static struct physmap_flash_data edb93xx_flash_data;
  42
  43 static struct resource edb93xx_flash_resource = {
  44         .flags          = IORESOURCE_MEM,
  45 };
  46
  47 static struct platform_device edb93xx_flash = {
  48         .name           = "physmap-flash",
  49         .id             = 0,
  50         .dev            = {
  51                 .platform_data  = &edb93xx_flash_data,
  52         },
  53         .num_resources  = 1,
  54         .resource       = &edb93xx_flash_resource,
  55 };
  56
  57 static void __init __edb93xx_register_flash(unsigned int width,
  58                         resource_size_t start, resource_size_t size)
  59 {
  60         edb93xx_flash_data.width        = width;
  61         edb93xx_flash_resource.start    = start;
  62         edb93xx_flash_resource.end      = start + size - 1;
  63
  64         platform_device_register(&edb93xx_flash);
  65 }
  66
  67 static void __init edb93xx_register_flash(void)
  68 {
  69         if (machine_is_edb9307() || machine_is_edb9312() ||
  70             machine_is_edb9315()) {
  71                 __edb93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
  72         } else {
  73                 __edb93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
  74         }
  75 }
  76
  77 static struct ep93xx_eth_data edb93xx_eth_data = {
  78         .phy_id         = 1,
  79 };
  80
  81
  82 /*************************************************************************
  83  * EDB93xx i2c peripheral handling
  84  *************************************************************************/
  85 static struct i2c_gpio_platform_data edb93xx_i2c_gpio_data = {
  86         .sda_pin                = EP93XX_GPIO_LINE_EEDAT,
  87         .sda_is_open_drain      = 0,
  88         .scl_pin                = EP93XX_GPIO_LINE_EECLK,
  89         .scl_is_open_drain      = 0,
  90         .udelay                 = 0,    /* default to 100 kHz */
  91         .timeout                = 0,    /* default to 100 ms */
  92 };
  93
  94 static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = {
  95         {
  96                 I2C_BOARD_INFO("isl1208", 0x6f),
  97         },
  98 };
  99
 100 static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = {
 101         {
 102                 I2C_BOARD_INFO("ds1337", 0x68),
 103         },
 104 };
 105
 106 static void __init edb93xx_register_i2c(void)
 107 {
 108         if (machine_is_edb9302a() || machine_is_edb9307a() ||
 109             machine_is_edb9315a()) {
 110                 ep93xx_register_i2c(&edb93xx_i2c_gpio_data,
 111                                     edb93xxa_i2c_board_info,
 112                                     ARRAY_SIZE(edb93xxa_i2c_board_info));
 113         } else if (machine_is_edb9307() || machine_is_edb9312() ||
 114                    machine_is_edb9315()) {
 115                 ep93xx_register_i2c(&edb93xx_i2c_gpio_data,
 116                                     edb93xx_i2c_board_info,
 117                                     ARRAY_SIZE(edb93xx_i2c_board_info));
 118         }
 119 }
 120
 121
 122 /*************************************************************************
 123  * EDB93xx pwm
 124  *************************************************************************/
 125 static void __init edb93xx_register_pwm(void)
 126 {
 127         if (machine_is_edb9301() ||
 128             machine_is_edb9302() || machine_is_edb9302a()) {
 129                 /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
 130                 ep93xx_register_pwm(0, 1);
 131         } else if (machine_is_edb9307() || machine_is_edb9307a()) {
 132                 /* EP9307 only has pwm.0 (PWMOUT) */
 133                 ep93xx_register_pwm(1, 0);
 134         } else {
 135                 /* EP9312 and EP9315 have both */
 136                 ep93xx_register_pwm(1, 1);
 137         }
 138 }
 139
 140
 141 static void __init edb93xx_init_machine(void)
 142 {
 143         ep93xx_init_devices();
 144         edb93xx_register_flash();
 145         ep93xx_register_eth(&edb93xx_eth_data, 1);
 146         edb93xx_register_i2c();
 147         edb93xx_register_pwm();
 148 }
 149
 150
 151 #ifdef CONFIG_MACH_EDB9301
 152 MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board")
 153         /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
 154         .phys_io        = EP93XX_APB_PHYS_BASE,
 155         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 156         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 157         .map_io         = ep93xx_map_io,
 158         .init_irq       = ep93xx_init_irq,
 159         .timer          = &ep93xx_timer,
 160         .init_machine   = edb93xx_init_machine,
 161 MACHINE_END
 162 #endif
 163
 164 #ifdef CONFIG_MACH_EDB9302
 165 MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board")
 166         /* Maintainer: George Kashperko <george@chas.com.ua> */
 167         .phys_io        = EP93XX_APB_PHYS_BASE,
 168         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 169         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 170         .map_io         = ep93xx_map_io,
 171         .init_irq       = ep93xx_init_irq,
 172         .timer          = &ep93xx_timer,
 173         .init_machine   = edb93xx_init_machine,
 174 MACHINE_END
 175 #endif
 176
 177 #ifdef CONFIG_MACH_EDB9302A
 178 MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board")
 179         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
 180         .phys_io        = EP93XX_APB_PHYS_BASE,
 181         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 182         .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
 183         .map_io         = ep93xx_map_io,
 184         .init_irq       = ep93xx_init_irq,
 185         .timer          = &ep93xx_timer,
 186         .init_machine   = edb93xx_init_machine,
 187 MACHINE_END
 188 #endif
 189
 190 #ifdef CONFIG_MACH_EDB9307
 191 MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board")
 192         /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
 193         .phys_io        = EP93XX_APB_PHYS_BASE,
 194         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 195         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 196         .map_io         = ep93xx_map_io,
 197         .init_irq       = ep93xx_init_irq,
 198         .timer          = &ep93xx_timer,
 199         .init_machine   = edb93xx_init_machine,
 200 MACHINE_END
 201 #endif
 202
 203 #ifdef CONFIG_MACH_EDB9307A
 204 MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board")
 205         /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
 206         .phys_io        = EP93XX_APB_PHYS_BASE,
 207         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 208         .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
 209         .map_io         = ep93xx_map_io,
 210         .init_irq       = ep93xx_init_irq,
 211         .timer          = &ep93xx_timer,
 212         .init_machine   = edb93xx_init_machine,
 213 MACHINE_END
 214 #endif
 215
 216 #ifdef CONFIG_MACH_EDB9312
 217 MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board")
 218         /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
 219         .phys_io        = EP93XX_APB_PHYS_BASE,
 220         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 221         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 222         .map_io         = ep93xx_map_io,
 223         .init_irq       = ep93xx_init_irq,
 224         .timer          = &ep93xx_timer,
 225         .init_machine   = edb93xx_init_machine,
 226 MACHINE_END
 227 #endif
 228
 229 #ifdef CONFIG_MACH_EDB9315
 230 MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board")
 231         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
 232         .phys_io        = EP93XX_APB_PHYS_BASE,
 233         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 234         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 235         .map_io         = ep93xx_map_io,
 236         .init_irq       = ep93xx_init_irq,
 237         .timer          = &ep93xx_timer,
 238         .init_machine   = edb93xx_init_machine,
 239 MACHINE_END
 240 #endif
 241
 242 #ifdef CONFIG_MACH_EDB9315A
 243 MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board")
 244         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
 245         .phys_io        = EP93XX_APB_PHYS_BASE,
 246         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 247         .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
 248         .map_io         = ep93xx_map_io,
 249         .init_irq       = ep93xx_init_irq,
 250         .timer          = &ep93xx_timer,
 251         .init_machine   = edb93xx_init_machine,
 252 MACHINE_END
 253 #endif