arch/arm/mach-omap2/board-igep0020.c

   1 /*
   2  * Copyright (C) 2009 Integration Software and Electronic Engineering.
   3  *
   4  * Modified from mach-omap2/board-generic.c
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/delay.h>
  15 #include <linux/err.h>
  16 #include <linux/clk.h>
  17 #include <linux/io.h>
  18 #include <linux/gpio.h>
  19 #include <linux/interrupt.h>
  20
  21 #include <linux/regulator/machine.h>
  22 #include <linux/i2c/twl.h>
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26
  27 #include <plat/board.h>
  28 #include <plat/common.h>
  29 #include <plat/gpmc.h>
  30 #include <plat/usb.h>
  31
  32 #include "mux.h"
  33 #include "mmc-twl4030.h"
  34
  35 #define IGEP2_SMSC911X_CS       5
  36 #define IGEP2_SMSC911X_GPIO     176
  37 #define IGEP2_GPIO_USBH_NRESET  24
  38 #define IGEP2_GPIO_LED0_RED     26
  39 #define IGEP2_GPIO_LED0_GREEN   27
  40 #define IGEP2_GPIO_LED1_RED     28
  41
  42 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
  43
  44 #include <linux/smsc911x.h>
  45
  46 static struct smsc911x_platform_config igep2_smsc911x_config = {
  47         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  48         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  49         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS  ,
  50         .phy_interface  = PHY_INTERFACE_MODE_MII,
  51 };
  52
  53 static struct resource igep2_smsc911x_resources[] = {
  54         {
  55                 .flags  = IORESOURCE_MEM,
  56         },
  57         {
  58                 .start  = OMAP_GPIO_IRQ(IGEP2_SMSC911X_GPIO),
  59                 .end    = OMAP_GPIO_IRQ(IGEP2_SMSC911X_GPIO),
  60                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  61         },
  62 };
  63
  64 static struct platform_device igep2_smsc911x_device = {
  65         .name           = "smsc911x",
  66         .id             = 0,
  67         .num_resources  = ARRAY_SIZE(igep2_smsc911x_resources),
  68         .resource       = igep2_smsc911x_resources,
  69         .dev            = {
  70                 .platform_data = &igep2_smsc911x_config,
  71         },
  72 };
  73
  74 static inline void __init igep2_init_smsc911x(void)
  75 {
  76         unsigned long cs_mem_base;
  77
  78         if (gpmc_cs_request(IGEP2_SMSC911X_CS, SZ_16M, &cs_mem_base) < 0) {
  79                 pr_err("IGEP v2: Failed request for GPMC mem for smsc911x\n");
  80                 gpmc_cs_free(IGEP2_SMSC911X_CS);
  81                 return;
  82         }
  83
  84         igep2_smsc911x_resources[0].start = cs_mem_base + 0x0;
  85         igep2_smsc911x_resources[0].end   = cs_mem_base + 0xff;
  86
  87         if ((gpio_request(IGEP2_SMSC911X_GPIO, "SMSC911X IRQ") == 0) &&
  88             (gpio_direction_input(IGEP2_SMSC911X_GPIO) == 0)) {
  89                 gpio_export(IGEP2_SMSC911X_GPIO, 0);
  90         } else {
  91                 pr_err("IGEP v2: Could not obtain gpio for for SMSC911X IRQ\n");
  92                 return;
  93         }
  94
  95         platform_device_register(&igep2_smsc911x_device);
  96 }
  97
  98 #else
  99 static inline void __init igep2_init_smsc911x(void) { }
 100 #endif
 101
 102 static struct omap_board_config_kernel igep2_config[] __initdata = {
 103 };
 104
 105 static struct regulator_consumer_supply igep2_vmmc1_supply = {
 106         .supply         = "vmmc",
 107 };
 108
 109 /* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
 110 static struct regulator_init_data igep2_vmmc1 = {
 111         .constraints = {
 112                 .min_uV                 = 1850000,
 113                 .max_uV                 = 3150000,
 114                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 115                                         | REGULATOR_MODE_STANDBY,
 116                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 117                                         | REGULATOR_CHANGE_MODE
 118                                         | REGULATOR_CHANGE_STATUS,
 119         },
 120         .num_consumer_supplies  = 1,
 121         .consumer_supplies      = &igep2_vmmc1_supply,
 122 };
 123
 124 static struct twl4030_hsmmc_info mmc[] = {
 125         {
 126                 .mmc            = 1,
 127                 .wires          = 4,
 128                 .gpio_cd        = -EINVAL,
 129                 .gpio_wp        = -EINVAL,
 130         },
 131         {
 132                 .mmc            = 2,
 133                 .wires          = 4,
 134                 .gpio_cd        = -EINVAL,
 135                 .gpio_wp        = -EINVAL,
 136         },
 137         {}      /* Terminator */
 138 };
 139
 140 static int igep2_twl_gpio_setup(struct device *dev,
 141                 unsigned gpio, unsigned ngpio)
 142 {
 143         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 144         mmc[0].gpio_cd = gpio + 0;
 145         twl4030_mmc_init(mmc);
 146
 147         /* link regulators to MMC adapters ... we "know" the
 148          * regulators will be set up only *after* we return.
 149         */
 150         igep2_vmmc1_supply.dev = mmc[0].dev;
 151
 152         return 0;
 153 };
 154
 155 static struct twl4030_gpio_platform_data igep2_gpio_data = {
 156         .gpio_base      = OMAP_MAX_GPIO_LINES,
 157         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 158         .irq_end        = TWL4030_GPIO_IRQ_END,
 159         .use_leds       = false,
 160         .setup          = igep2_twl_gpio_setup,
 161 };
 162
 163 static struct twl4030_usb_data igep2_usb_data = {
 164         .usb_mode       = T2_USB_MODE_ULPI,
 165 };
 166
 167 static void __init igep2_init_irq(void)
 168 {
 169         omap_board_config = igep2_config;
 170         omap_board_config_size = ARRAY_SIZE(igep2_config);
 171         omap2_init_common_hw(NULL, NULL);
 172         omap_init_irq();
 173         omap_gpio_init();
 174 }
 175
 176 static struct twl4030_platform_data igep2_twldata = {
 177         .irq_base       = TWL4030_IRQ_BASE,
 178         .irq_end        = TWL4030_IRQ_END,
 179
 180         /* platform_data for children goes here */
 181         .usb            = &igep2_usb_data,
 182         .gpio           = &igep2_gpio_data,
 183         .vmmc1          = &igep2_vmmc1,
 184
 185 };
 186
 187 static struct i2c_board_info __initdata igep2_i2c_boardinfo[] = {
 188         {
 189                 I2C_BOARD_INFO("twl4030", 0x48),
 190                 .flags          = I2C_CLIENT_WAKE,
 191                 .irq            = INT_34XX_SYS_NIRQ,
 192                 .platform_data  = &igep2_twldata,
 193         },
 194 };
 195
 196 static int __init igep2_i2c_init(void)
 197 {
 198         omap_register_i2c_bus(1, 2600, igep2_i2c_boardinfo,
 199                         ARRAY_SIZE(igep2_i2c_boardinfo));
 200         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 201          * projector don't work reliably with 400kHz */
 202         omap_register_i2c_bus(3, 100, NULL, 0);
 203         return 0;
 204 }
 205
 206 #ifdef CONFIG_OMAP_MUX
 207 static struct omap_board_mux board_mux[] __initdata = {
 208         { .reg_offset = OMAP_MUX_TERMINATOR },
 209 };
 210 #else
 211 #define board_mux       NULL
 212 #endif
 213
 214 static void __init igep2_init(void)
 215 {
 216         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 217         igep2_i2c_init();
 218         omap_serial_init();
 219         usb_musb_init();
 220
 221         igep2_init_smsc911x();
 222
 223         /* GPIO userspace leds */
 224         if ((gpio_request(IGEP2_GPIO_LED0_RED, "GPIO_LED0_RED") == 0) &&
 225             (gpio_direction_output(IGEP2_GPIO_LED0_RED, 1) == 0)) {
 226                 gpio_export(IGEP2_GPIO_LED0_RED, 0);
 227                 gpio_set_value(IGEP2_GPIO_LED0_RED, 0);
 228         } else
 229                 pr_warning("IGEP v2: Could not obtain gpio GPIO_LED0_RED\n");
 230
 231         if ((gpio_request(IGEP2_GPIO_LED0_GREEN, "GPIO_LED0_GREEN") == 0) &&
 232             (gpio_direction_output(IGEP2_GPIO_LED0_GREEN, 1) == 0)) {
 233                 gpio_export(IGEP2_GPIO_LED0_GREEN, 0);
 234                 gpio_set_value(IGEP2_GPIO_LED0_GREEN, 0);
 235         } else
 236                 pr_warning("IGEP v2: Could not obtain gpio GPIO_LED0_GREEN\n");
 237
 238         if ((gpio_request(IGEP2_GPIO_LED1_RED, "GPIO_LED1_RED") == 0) &&
 239             (gpio_direction_output(IGEP2_GPIO_LED1_RED, 1) == 0)) {
 240                 gpio_export(IGEP2_GPIO_LED1_RED, 0);
 241                 gpio_set_value(IGEP2_GPIO_LED1_RED, 0);
 242         } else
 243                 pr_warning("IGEP v2: Could not obtain gpio GPIO_LED1_RED\n");
 244 }
 245
 246 static void __init igep2_map_io(void)
 247 {
 248         omap2_set_globals_343x();
 249         omap2_map_common_io();
 250 }
 251
 252 MACHINE_START(IGEP0020, "IGEP v2 board")
 253         .phys_io        = 0x48000000,
 254         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 255         .boot_params    = 0x80000100,
 256         .map_io         = igep2_map_io,
 257         .init_irq       = igep2_init_irq,
 258         .init_machine   = igep2_init,
 259         .timer          = &omap_timer,
 260 MACHINE_END