arch/arm/mach-omap2/board-omap3evm.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3evm.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-3430sdp.c
   7  *
   8  * Initial code: Syed Mohammed Khasim
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/err.h>
  20 #include <linux/clk.h>
  21 #include <linux/gpio.h>
  22 #include <linux/input.h>
  23 #include <linux/input/matrix_keypad.h>
  24 #include <linux/leds.h>
  25
  26 #include <linux/spi/spi.h>
  27 #include <linux/spi/ads7846.h>
  28 #include <linux/i2c/twl4030.h>
  29 #include <linux/usb/otg.h>
  30
  31 #include <linux/regulator/machine.h>
  32
  33 #include <mach/hardware.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37
  38 #include <plat/board.h>
  39 #include <plat/mux.h>
  40 #include <plat/usb.h>
  41 #include <plat/common.h>
  42 #include <plat/mcspi.h>
  43
  44 #include "sdram-micron-mt46h32m32lf-6.h"
  45 #include "mmc-twl4030.h"
  46
  47 #define OMAP3_EVM_TS_GPIO       175
  48
  49 #define OMAP3EVM_ETHR_START     0x2c000000
  50 #define OMAP3EVM_ETHR_SIZE      1024
  51 #define OMAP3EVM_ETHR_GPIO_IRQ  176
  52 #define OMAP3EVM_SMC911X_CS     5
  53
  54 static struct resource omap3evm_smc911x_resources[] = {
  55         [0] =   {
  56                 .start  = OMAP3EVM_ETHR_START,
  57                 .end    = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1),
  58                 .flags  = IORESOURCE_MEM,
  59         },
  60         [1] =   {
  61                 .start  = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
  62                 .end    = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
  63                 .flags  = IORESOURCE_IRQ,
  64         },
  65 };
  66
  67 static struct platform_device omap3evm_smc911x_device = {
  68         .name           = "smc911x",
  69         .id             = -1,
  70         .num_resources  = ARRAY_SIZE(omap3evm_smc911x_resources),
  71         .resource       = &omap3evm_smc911x_resources[0],
  72 };
  73
  74 static inline void __init omap3evm_init_smc911x(void)
  75 {
  76         int eth_cs;
  77         struct clk *l3ck;
  78         unsigned int rate;
  79
  80         eth_cs = OMAP3EVM_SMC911X_CS;
  81
  82         l3ck = clk_get(NULL, "l3_ck");
  83         if (IS_ERR(l3ck))
  84                 rate = 100000000;
  85         else
  86                 rate = clk_get_rate(l3ck);
  87
  88         if (gpio_request(OMAP3EVM_ETHR_GPIO_IRQ, "SMC911x irq") < 0) {
  89                 printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n",
  90                         OMAP3EVM_ETHR_GPIO_IRQ);
  91                 return;
  92         }
  93
  94         gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ);
  95 }
  96
  97 static struct regulator_consumer_supply omap3evm_vmmc1_supply = {
  98         .supply                 = "vmmc",
  99 };
 100
 101 static struct regulator_consumer_supply omap3evm_vsim_supply = {
 102         .supply                 = "vmmc_aux",
 103 };
 104
 105 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 106 static struct regulator_init_data omap3evm_vmmc1 = {
 107         .constraints = {
 108                 .min_uV                 = 1850000,
 109                 .max_uV                 = 3150000,
 110                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 111                                         | REGULATOR_MODE_STANDBY,
 112                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 113                                         | REGULATOR_CHANGE_MODE
 114                                         | REGULATOR_CHANGE_STATUS,
 115         },
 116         .num_consumer_supplies  = 1,
 117         .consumer_supplies      = &omap3evm_vmmc1_supply,
 118 };
 119
 120 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 121 static struct regulator_init_data omap3evm_vsim = {
 122         .constraints = {
 123                 .min_uV                 = 1800000,
 124                 .max_uV                 = 3000000,
 125                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 126                                         | REGULATOR_MODE_STANDBY,
 127                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 128                                         | REGULATOR_CHANGE_MODE
 129                                         | REGULATOR_CHANGE_STATUS,
 130         },
 131         .num_consumer_supplies  = 1,
 132         .consumer_supplies      = &omap3evm_vsim_supply,
 133 };
 134
 135 static struct twl4030_hsmmc_info mmc[] = {
 136         {
 137                 .mmc            = 1,
 138                 .wires          = 4,
 139                 .gpio_cd        = -EINVAL,
 140                 .gpio_wp        = 63,
 141         },
 142         {}      /* Terminator */
 143 };
 144
 145 static struct gpio_led gpio_leds[] = {
 146         {
 147                 .name                   = "omap3evm::ledb",
 148                 /* normally not visible (board underside) */
 149                 .default_trigger        = "default-on",
 150                 .gpio                   = -EINVAL,      /* gets replaced */
 151                 .active_low             = true,
 152         },
 153 };
 154
 155 static struct gpio_led_platform_data gpio_led_info = {
 156         .leds           = gpio_leds,
 157         .num_leds       = ARRAY_SIZE(gpio_leds),
 158 };
 159
 160 static struct platform_device leds_gpio = {
 161         .name   = "leds-gpio",
 162         .id     = -1,
 163         .dev    = {
 164                 .platform_data  = &gpio_led_info,
 165         },
 166 };
 167
 168
 169 static int omap3evm_twl_gpio_setup(struct device *dev,
 170                 unsigned gpio, unsigned ngpio)
 171 {
 172         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 173         omap_cfg_reg(L8_34XX_GPIO63);
 174         mmc[0].gpio_cd = gpio + 0;
 175         twl4030_mmc_init(mmc);
 176
 177         /* link regulators to MMC adapters */
 178         omap3evm_vmmc1_supply.dev = mmc[0].dev;
 179         omap3evm_vsim_supply.dev = mmc[0].dev;
 180
 181         /*
 182          * Most GPIOs are for USB OTG.  Some are mostly sent to
 183          * the P2 connector; notably LEDA for the LCD backlight.
 184          */
 185
 186         /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
 187         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 188
 189         platform_device_register(&leds_gpio);
 190
 191         return 0;
 192 }
 193
 194 static struct twl4030_gpio_platform_data omap3evm_gpio_data = {
 195         .gpio_base      = OMAP_MAX_GPIO_LINES,
 196         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 197         .irq_end        = TWL4030_GPIO_IRQ_END,
 198         .use_leds       = true,
 199         .setup          = omap3evm_twl_gpio_setup,
 200 };
 201
 202 static struct twl4030_usb_data omap3evm_usb_data = {
 203         .usb_mode       = T2_USB_MODE_ULPI,
 204 };
 205
 206 static int board_keymap[] = {
 207         KEY(0, 0, KEY_LEFT),
 208         KEY(0, 1, KEY_RIGHT),
 209         KEY(0, 2, KEY_A),
 210         KEY(0, 3, KEY_B),
 211         KEY(1, 0, KEY_DOWN),
 212         KEY(1, 1, KEY_UP),
 213         KEY(1, 2, KEY_E),
 214         KEY(1, 3, KEY_F),
 215         KEY(2, 0, KEY_ENTER),
 216         KEY(2, 1, KEY_I),
 217         KEY(2, 2, KEY_J),
 218         KEY(2, 3, KEY_K),
 219         KEY(3, 0, KEY_M),
 220         KEY(3, 1, KEY_N),
 221         KEY(3, 2, KEY_O),
 222         KEY(3, 3, KEY_P)
 223 };
 224
 225 static struct matrix_keymap_data board_map_data = {
 226         .keymap                 = board_keymap,
 227         .keymap_size            = ARRAY_SIZE(board_keymap),
 228 };
 229
 230 static struct twl4030_keypad_data omap3evm_kp_data = {
 231         .keymap_data    = &board_map_data,
 232         .rows           = 4,
 233         .cols           = 4,
 234         .rep            = 1,
 235 };
 236
 237 static struct twl4030_madc_platform_data omap3evm_madc_data = {
 238         .irq_line       = 1,
 239 };
 240
 241 static struct twl4030_platform_data omap3evm_twldata = {
 242         .irq_base       = TWL4030_IRQ_BASE,
 243         .irq_end        = TWL4030_IRQ_END,
 244
 245         /* platform_data for children goes here */
 246         .keypad         = &omap3evm_kp_data,
 247         .madc           = &omap3evm_madc_data,
 248         .usb            = &omap3evm_usb_data,
 249         .gpio           = &omap3evm_gpio_data,
 250         .vmmc1          = &omap3evm_vmmc1,
 251         .vsim           = &omap3evm_vsim,
 252 };
 253
 254 static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
 255         {
 256                 I2C_BOARD_INFO("twl4030", 0x48),
 257                 .flags = I2C_CLIENT_WAKE,
 258                 .irq = INT_34XX_SYS_NIRQ,
 259                 .platform_data = &omap3evm_twldata,
 260         },
 261 };
 262
 263 static int __init omap3_evm_i2c_init(void)
 264 {
 265         omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo,
 266                         ARRAY_SIZE(omap3evm_i2c_boardinfo));
 267         omap_register_i2c_bus(2, 400, NULL, 0);
 268         omap_register_i2c_bus(3, 400, NULL, 0);
 269         return 0;
 270 }
 271
 272 static struct platform_device omap3_evm_lcd_device = {
 273         .name           = "omap3evm_lcd",
 274         .id             = -1,
 275 };
 276
 277 static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
 278         .ctrl_name      = "internal",
 279 };
 280
 281 static void ads7846_dev_init(void)
 282 {
 283         if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0)
 284                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 285
 286         gpio_direction_input(OMAP3_EVM_TS_GPIO);
 287
 288         omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1);
 289         omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa);
 290 }
 291
 292 static int ads7846_get_pendown_state(void)
 293 {
 294         return !gpio_get_value(OMAP3_EVM_TS_GPIO);
 295 }
 296
 297 struct ads7846_platform_data ads7846_config = {
 298         .x_max                  = 0x0fff,
 299         .y_max                  = 0x0fff,
 300         .x_plate_ohms           = 180,
 301         .pressure_max           = 255,
 302         .debounce_max           = 10,
 303         .debounce_tol           = 3,
 304         .debounce_rep           = 1,
 305         .get_pendown_state      = ads7846_get_pendown_state,
 306         .keep_vref_on           = 1,
 307         .settle_delay_usecs     = 150,
 308 };
 309
 310 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
 311         .turbo_mode     = 0,
 312         .single_channel = 1,    /* 0: slave, 1: master */
 313 };
 314
 315 struct spi_board_info omap3evm_spi_board_info[] = {
 316         [0] = {
 317                 .modalias               = "ads7846",
 318                 .bus_num                = 1,
 319                 .chip_select            = 0,
 320                 .max_speed_hz           = 1500000,
 321                 .controller_data        = &ads7846_mcspi_config,
 322                 .irq                    = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO),
 323                 .platform_data          = &ads7846_config,
 324         },
 325 };
 326
 327 static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
 328         { OMAP_TAG_LCD,         &omap3_evm_lcd_config },
 329 };
 330
 331 static void __init omap3_evm_init_irq(void)
 332 {
 333         omap_board_config = omap3_evm_config;
 334         omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
 335         omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL, NULL, NULL, NULL);
 336         omap_init_irq();
 337         omap_gpio_init();
 338         omap3evm_init_smc911x();
 339 }
 340
 341 static struct platform_device *omap3_evm_devices[] __initdata = {
 342         &omap3_evm_lcd_device,
 343         &omap3evm_smc911x_device,
 344 };
 345
 346 static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 347
 348         .port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 349         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 350         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 351
 352         .phy_reset  = true,
 353         .reset_gpio_port[0]  = -EINVAL,
 354         .reset_gpio_port[1]  = 135,
 355         .reset_gpio_port[2]  = -EINVAL
 356 };
 357
 358 static void __init omap3_evm_init(void)
 359 {
 360         omap3_evm_i2c_init();
 361
 362         platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
 363
 364         spi_register_board_info(omap3evm_spi_board_info,
 365                                 ARRAY_SIZE(omap3evm_spi_board_info));
 366
 367         omap_serial_init();
 368 #ifdef CONFIG_NOP_USB_XCEIV
 369         /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
 370         usb_nop_xceiv_register();
 371 #endif
 372         usb_musb_init();
 373         /* Setup EHCI phy reset padconfig */
 374         omap_cfg_reg(AF4_34XX_GPIO135_OUT);
 375         usb_ehci_init(&ehci_pdata);
 376         ads7846_dev_init();
 377 }
 378
 379 static void __init omap3_evm_map_io(void)
 380 {
 381         omap2_set_globals_343x();
 382         omap2_map_common_io();
 383 }
 384
 385 MACHINE_START(OMAP3EVM, "OMAP3 EVM")
 386         /* Maintainer: Syed Mohammed Khasim - Texas Instruments */
 387         .phys_io        = 0x48000000,
 388         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 389         .boot_params    = 0x80000100,
 390         .map_io         = omap3_evm_map_io,
 391         .init_irq       = omap3_evm_init_irq,
 392         .init_machine   = omap3_evm_init,
 393         .timer          = &omap_timer,
 394 MACHINE_END