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 static void __init edb93xx_init_machine(void)
 122 {
 123         ep93xx_init_devices();
 124         edb93xx_register_flash();
 125         ep93xx_register_eth(&edb93xx_eth_data, 1);
 126         edb93xx_register_i2c();
 127 }
 128
 129
 130 #ifdef CONFIG_MACH_EDB9301
 131 MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board")
 132         /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
 133         .phys_io        = EP93XX_APB_PHYS_BASE,
 134         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 135         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 136         .map_io         = ep93xx_map_io,
 137         .init_irq       = ep93xx_init_irq,
 138         .timer          = &ep93xx_timer,
 139         .init_machine   = edb93xx_init_machine,
 140 MACHINE_END
 141 #endif
 142
 143 #ifdef CONFIG_MACH_EDB9302
 144 MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board")
 145         /* Maintainer: George Kashperko <george@chas.com.ua> */
 146         .phys_io        = EP93XX_APB_PHYS_BASE,
 147         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 148         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 149         .map_io         = ep93xx_map_io,
 150         .init_irq       = ep93xx_init_irq,
 151         .timer          = &ep93xx_timer,
 152         .init_machine   = edb93xx_init_machine,
 153 MACHINE_END
 154 #endif
 155
 156 #ifdef CONFIG_MACH_EDB9302A
 157 MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board")
 158         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
 159         .phys_io        = EP93XX_APB_PHYS_BASE,
 160         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 161         .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
 162         .map_io         = ep93xx_map_io,
 163         .init_irq       = ep93xx_init_irq,
 164         .timer          = &ep93xx_timer,
 165         .init_machine   = edb93xx_init_machine,
 166 MACHINE_END
 167 #endif
 168
 169 #ifdef CONFIG_MACH_EDB9307
 170 MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board")
 171         /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
 172         .phys_io        = EP93XX_APB_PHYS_BASE,
 173         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 174         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 175         .map_io         = ep93xx_map_io,
 176         .init_irq       = ep93xx_init_irq,
 177         .timer          = &ep93xx_timer,
 178         .init_machine   = edb93xx_init_machine,
 179 MACHINE_END
 180 #endif
 181
 182 #ifdef CONFIG_MACH_EDB9307A
 183 MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board")
 184         /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
 185         .phys_io        = EP93XX_APB_PHYS_BASE,
 186         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 187         .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
 188         .map_io         = ep93xx_map_io,
 189         .init_irq       = ep93xx_init_irq,
 190         .timer          = &ep93xx_timer,
 191         .init_machine   = edb93xx_init_machine,
 192 MACHINE_END
 193 #endif
 194
 195 #ifdef CONFIG_MACH_EDB9312
 196 MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board")
 197         /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
 198         .phys_io        = EP93XX_APB_PHYS_BASE,
 199         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 200         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 201         .map_io         = ep93xx_map_io,
 202         .init_irq       = ep93xx_init_irq,
 203         .timer          = &ep93xx_timer,
 204         .init_machine   = edb93xx_init_machine,
 205 MACHINE_END
 206 #endif
 207
 208 #ifdef CONFIG_MACH_EDB9315
 209 MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board")
 210         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
 211         .phys_io        = EP93XX_APB_PHYS_BASE,
 212         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 213         .boot_params    = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 214         .map_io         = ep93xx_map_io,
 215         .init_irq       = ep93xx_init_irq,
 216         .timer          = &ep93xx_timer,
 217         .init_machine   = edb93xx_init_machine,
 218 MACHINE_END
 219 #endif
 220
 221 #ifdef CONFIG_MACH_EDB9315A
 222 MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board")
 223         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
 224         .phys_io        = EP93XX_APB_PHYS_BASE,
 225         .io_pg_offst    = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
 226         .boot_params    = EP93XX_SDCE0_PHYS_BASE + 0x100,
 227         .map_io         = ep93xx_map_io,
 228         .init_irq       = ep93xx_init_irq,
 229         .timer          = &ep93xx_timer,
 230         .init_machine   = edb93xx_init_machine,
 231 MACHINE_END
 232 #endif