arch/arm/mach-omap2/board-cm-t35.c

   1 /*
   2  * board-cm-t35.c (CompuLab CM-T35 module)
   3  *
   4  * Copyright (C) 2009 CompuLab, Ltd.
   5  * Author: Mike Rapoport <mike@compulab.co.il>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * version 2 as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  19  * 02110-1301 USA
  20  *
  21  */
  22
  23 #include <linux/kernel.h>
  24 #include <linux/init.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/input.h>
  27 #include <linux/delay.h>
  28 #include <linux/gpio.h>
  29
  30 #include <linux/i2c/at24.h>
  31 #include <linux/i2c/twl4030.h>
  32 #include <linux/regulator/machine.h>
  33
  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/common.h>
  40 #include <plat/mux.h>
  41 #include <plat/nand.h>
  42 #include <plat/keypad.h>
  43 #include <plat/gpmc.h>
  44 #include <plat/usb.h>
  45
  46 #include <mach/hardware.h>
  47
  48 #include "sdram-micron-mt46h32m32lf-6.h"
  49 #include "mmc-twl4030.h"
  50
  51 #define CM_T35_GPIO_PENDOWN     57
  52
  53 #define CM_T35_SMSC911X_CS      5
  54 #define CM_T35_SMSC911X_GPIO    163
  55
  56 #define NAND_BLOCK_SIZE         SZ_128K
  57 #define GPMC_CS0_BASE           0x60
  58 #define GPMC_CS0_BASE_ADDR      (OMAP34XX_GPMC_VIRT + GPMC_CS0_BASE)
  59
  60 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
  61 #include <linux/smsc911x.h>
  62
  63 static struct resource cm_t35_smsc911x_resources[] = {
  64         {
  65                 .name   = "smsc911x-memory",
  66                 .flags  = IORESOURCE_MEM,
  67         },
  68         {
  69                 .start  = OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
  70                 .end    = OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
  71                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  72         },
  73 };
  74
  75 static struct smsc911x_platform_config cm_t35_smsc911x_config = {
  76         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  77         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  78         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
  79         .phy_interface  = PHY_INTERFACE_MODE_MII,
  80 };
  81
  82 static struct platform_device cm_t35_smsc911x_device = {
  83         .name           = "smsc911x",
  84         .id             = 0,
  85         .num_resources  = ARRAY_SIZE(cm_t35_smsc911x_resources),
  86         .resource       = cm_t35_smsc911x_resources,
  87         .dev            = {
  88                 .platform_data = &cm_t35_smsc911x_config,
  89         },
  90 };
  91
  92 static void __init cm_t35_init_smsc911x(void)
  93 {
  94         unsigned long cs_mem_base;
  95
  96         if (gpmc_cs_request(CM_T35_SMSC911X_CS, SZ_16M, &cs_mem_base) < 0) {
  97                 pr_err("CM-T35: Failed request for GPMC mem for smsc911x\n");
  98                 return;
  99         }
 100
 101         cm_t35_smsc911x_resources[0].start = cs_mem_base + 0x0;
 102         cm_t35_smsc911x_resources[0].end   = cs_mem_base + 0xff;
 103
 104         if ((gpio_request(CM_T35_SMSC911X_GPIO, "CM ETH IRQ") == 0) &&
 105             (gpio_direction_input(CM_T35_SMSC911X_GPIO) == 0)) {
 106                 gpio_export(CM_T35_SMSC911X_GPIO, 0);
 107         } else {
 108                 pr_err("CM-T35: could not obtain gpio for SMSC911X IRQ\n");
 109                 return;
 110         }
 111
 112         platform_device_register(&cm_t35_smsc911x_device);
 113 }
 114 #else
 115 static inline void __init cm_t35_init_smsc911x(void) { return; }
 116 #endif
 117
 118 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 119 #include <linux/leds.h>
 120
 121 static struct gpio_led cm_t35_leds[] = {
 122         [0] = {
 123                 .gpio                   = 186,
 124                 .name                   = "cm-t35:green",
 125                 .default_trigger        = "heartbeat",
 126                 .active_low             = 1,
 127         },
 128 };
 129
 130 static struct gpio_led_platform_data cm_t35_led_pdata = {
 131         .num_leds       = ARRAY_SIZE(cm_t35_leds),
 132         .leds           = cm_t35_leds,
 133 };
 134
 135 static struct platform_device cm_t35_led_device = {
 136         .name           = "leds-gpio",
 137         .id             = -1,
 138         .dev            = {
 139                 .platform_data  = &cm_t35_led_pdata,
 140         },
 141 };
 142
 143 static void __init cm_t35_init_led(void)
 144 {
 145         platform_device_register(&cm_t35_led_device);
 146 }
 147 #else
 148 static inline void cm_t35_init_led(void) {}
 149 #endif
 150
 151 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
 152 #include <linux/mtd/mtd.h>
 153 #include <linux/mtd/nand.h>
 154 #include <linux/mtd/partitions.h>
 155
 156 static struct mtd_partition cm_t35_nand_partitions[] = {
 157         {
 158                 .name           = "xloader",
 159                 .offset         = 0,                    /* Offset = 0x00000 */
 160                 .size           = 4 * NAND_BLOCK_SIZE,
 161                 .mask_flags     = MTD_WRITEABLE
 162         },
 163         {
 164                 .name           = "uboot",
 165                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 166                 .size           = 15 * NAND_BLOCK_SIZE,
 167         },
 168         {
 169                 .name           = "uboot environment",
 170                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 171                 .size           = 2 * NAND_BLOCK_SIZE,
 172         },
 173         {
 174                 .name           = "linux",
 175                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 176                 .size           = 32 * NAND_BLOCK_SIZE,
 177         },
 178         {
 179                 .name           = "rootfs",
 180                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 181                 .size           = MTDPART_SIZ_FULL,
 182         },
 183 };
 184
 185 static struct omap_nand_platform_data cm_t35_nand_data = {
 186         .parts                  = cm_t35_nand_partitions,
 187         .nr_parts               = ARRAY_SIZE(cm_t35_nand_partitions),
 188         .dma_channel            = -1,   /* disable DMA in OMAP NAND driver */
 189         .cs                     = 0,
 190         .gpmc_cs_baseaddr       = (void __iomem *)GPMC_CS0_BASE_ADDR,
 191         .gpmc_baseaddr          = (void __iomem *)OMAP34XX_GPMC_VIRT,
 192
 193 };
 194
 195 static struct resource cm_t35_nand_resource = {
 196         .flags          = IORESOURCE_MEM,
 197 };
 198
 199 static struct platform_device cm_t35_nand_device = {
 200         .name           = "omap2-nand",
 201         .id             = -1,
 202         .num_resources  = 1,
 203         .resource       = &cm_t35_nand_resource,
 204         .dev            = {
 205                 .platform_data  = &cm_t35_nand_data,
 206         },
 207 };
 208
 209 static void __init cm_t35_init_nand(void)
 210 {
 211         if (platform_device_register(&cm_t35_nand_device) < 0)
 212                 pr_err("CM-T35: Unable to register NAND device\n");
 213 }
 214 #else
 215 static inline void cm_t35_init_nand(void) {}
 216 #endif
 217
 218 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
 219         defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 220 #include <linux/spi/spi.h>
 221 #include <linux/spi/ads7846.h>
 222
 223 #include <plat/mcspi.h>
 224
 225 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
 226         .turbo_mode     = 0,
 227         .single_channel = 1,    /* 0: slave, 1: master */
 228 };
 229
 230 static int ads7846_get_pendown_state(void)
 231 {
 232         return !gpio_get_value(CM_T35_GPIO_PENDOWN);
 233 }
 234
 235 static struct ads7846_platform_data ads7846_config = {
 236         .x_max                  = 0x0fff,
 237         .y_max                  = 0x0fff,
 238         .x_plate_ohms           = 180,
 239         .pressure_max           = 255,
 240         .debounce_max           = 10,
 241         .debounce_tol           = 3,
 242         .debounce_rep           = 1,
 243         .get_pendown_state      = ads7846_get_pendown_state,
 244         .keep_vref_on           = 1,
 245 };
 246
 247 static struct spi_board_info cm_t35_spi_board_info[] __initdata = {
 248         {
 249                 .modalias               = "ads7846",
 250                 .bus_num                = 1,
 251                 .chip_select            = 0,
 252                 .max_speed_hz           = 1500000,
 253                 .controller_data        = &ads7846_mcspi_config,
 254                 .irq                    = OMAP_GPIO_IRQ(CM_T35_GPIO_PENDOWN),
 255                 .platform_data          = &ads7846_config,
 256         },
 257 };
 258
 259 static void __init cm_t35_init_ads7846(void)
 260 {
 261         if ((gpio_request(CM_T35_GPIO_PENDOWN, "ADS7846_PENDOWN") == 0) &&
 262             (gpio_direction_input(CM_T35_GPIO_PENDOWN) == 0)) {
 263                 gpio_export(CM_T35_GPIO_PENDOWN, 0);
 264         } else {
 265                 pr_err("CM-T35: could not obtain gpio for ADS7846_PENDOWN\n");
 266                 return;
 267         }
 268
 269         spi_register_board_info(cm_t35_spi_board_info,
 270                                 ARRAY_SIZE(cm_t35_spi_board_info));
 271 }
 272 #else
 273 static inline void cm_t35_init_ads7846(void) {}
 274 #endif
 275
 276 static struct regulator_consumer_supply cm_t35_vmmc1_supply = {
 277         .supply                 = "vmmc",
 278 };
 279
 280 static struct regulator_consumer_supply cm_t35_vsim_supply = {
 281         .supply                 = "vmmc_aux",
 282 };
 283
 284 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 285 static struct regulator_init_data cm_t35_vmmc1 = {
 286         .constraints = {
 287                 .min_uV                 = 1850000,
 288                 .max_uV                 = 3150000,
 289                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 290                                         | REGULATOR_MODE_STANDBY,
 291                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 292                                         | REGULATOR_CHANGE_MODE
 293                                         | REGULATOR_CHANGE_STATUS,
 294         },
 295         .num_consumer_supplies  = 1,
 296         .consumer_supplies      = &cm_t35_vmmc1_supply,
 297 };
 298
 299 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 300 static struct regulator_init_data cm_t35_vsim = {
 301         .constraints = {
 302                 .min_uV                 = 1800000,
 303                 .max_uV                 = 3000000,
 304                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 305                                         | REGULATOR_MODE_STANDBY,
 306                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 307                                         | REGULATOR_CHANGE_MODE
 308                                         | REGULATOR_CHANGE_STATUS,
 309         },
 310         .num_consumer_supplies  = 1,
 311         .consumer_supplies      = &cm_t35_vsim_supply,
 312 };
 313
 314 static struct twl4030_usb_data cm_t35_usb_data = {
 315         .usb_mode       = T2_USB_MODE_ULPI,
 316 };
 317
 318 static int cm_t35_keymap[] = {
 319         KEY(0, 0, KEY_A),       KEY(0, 1, KEY_B),       KEY(0, 2, KEY_LEFT),
 320         KEY(1, 0, KEY_UP),      KEY(1, 1, KEY_ENTER),   KEY(1, 2, KEY_DOWN),
 321         KEY(2, 0, KEY_RIGHT),   KEY(2, 1, KEY_C),       KEY(2, 2, KEY_D),
 322 };
 323
 324 static struct matrix_keymap_data cm_t35_keymap_data = {
 325         .keymap                 = cm_t35_keymap,
 326         .keymap_size            = ARRAY_SIZE(cm_t35_keymap),
 327 };
 328
 329 static struct twl4030_keypad_data cm_t35_kp_data = {
 330         .keymap_data    = &cm_t35_keymap_data,
 331         .rows           = 3,
 332         .cols           = 3,
 333         .rep            = 1,
 334 };
 335
 336 static struct twl4030_hsmmc_info mmc[] = {
 337         {
 338                 .mmc            = 1,
 339                 .wires          = 4,
 340                 .gpio_cd        = -EINVAL,
 341                 .gpio_wp        = -EINVAL,
 342
 343         },
 344         {
 345                 .mmc            = 2,
 346                 .wires          = 4,
 347                 .transceiver    = 1,
 348                 .gpio_cd        = -EINVAL,
 349                 .gpio_wp        = -EINVAL,
 350                 .ocr_mask       = 0x00100000,   /* 3.3V */
 351         },
 352         {}      /* Terminator */
 353 };
 354
 355 static struct ehci_hcd_omap_platform_data ehci_pdata = {
 356         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 357         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 358         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 359
 360         .phy_reset  = true,
 361         .reset_gpio_port[0]  = -EINVAL,
 362         .reset_gpio_port[1]  = -EINVAL,
 363         .reset_gpio_port[2]  = -EINVAL
 364 };
 365
 366 static int cm_t35_twl_gpio_setup(struct device *dev, unsigned gpio,
 367                                  unsigned ngpio)
 368 {
 369         int wlan_rst = gpio + 2;
 370
 371         if ((gpio_request(wlan_rst, "WLAN RST") == 0) &&
 372             (gpio_direction_output(wlan_rst, 1) == 0)) {
 373                 gpio_export(wlan_rst, 0);
 374
 375                 udelay(10);
 376                 gpio_set_value(wlan_rst, 0);
 377                 udelay(10);
 378                 gpio_set_value(wlan_rst, 1);
 379         } else {
 380                 pr_err("CM-T35: could not obtain gpio for WiFi reset\n");
 381         }
 382
 383         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 384         mmc[0].gpio_cd = gpio + 0;
 385         twl4030_mmc_init(mmc);
 386
 387         /* link regulators to MMC adapters */
 388         cm_t35_vmmc1_supply.dev = mmc[0].dev;
 389         cm_t35_vsim_supply.dev = mmc[0].dev;
 390
 391         /* setup USB with proper PHY reset GPIOs */
 392         ehci_pdata.reset_gpio_port[0] = gpio + 6;
 393         ehci_pdata.reset_gpio_port[1] = gpio + 7;
 394
 395         usb_ehci_init(&ehci_pdata);
 396
 397         return 0;
 398 }
 399
 400 static struct twl4030_gpio_platform_data cm_t35_gpio_data = {
 401         .gpio_base      = OMAP_MAX_GPIO_LINES,
 402         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 403         .irq_end        = TWL4030_GPIO_IRQ_END,
 404         .setup          = cm_t35_twl_gpio_setup,
 405 };
 406
 407 static struct twl4030_platform_data cm_t35_twldata = {
 408         .irq_base       = TWL4030_IRQ_BASE,
 409         .irq_end        = TWL4030_IRQ_END,
 410
 411         /* platform_data for children goes here */
 412         .keypad         = &cm_t35_kp_data,
 413         .usb            = &cm_t35_usb_data,
 414         .gpio           = &cm_t35_gpio_data,
 415         .vmmc1          = &cm_t35_vmmc1,
 416         .vsim           = &cm_t35_vsim,
 417 };
 418
 419 static struct i2c_board_info __initdata cm_t35_i2c_boardinfo[] = {
 420         {
 421                 I2C_BOARD_INFO("tps65930", 0x48),
 422                 .flags          = I2C_CLIENT_WAKE,
 423                 .irq            = INT_34XX_SYS_NIRQ,
 424                 .platform_data  = &cm_t35_twldata,
 425         },
 426 };
 427
 428 static void __init cm_t35_init_i2c(void)
 429 {
 430         omap_register_i2c_bus(1, 2600, cm_t35_i2c_boardinfo,
 431                               ARRAY_SIZE(cm_t35_i2c_boardinfo));
 432 }
 433
 434 static struct omap_board_config_kernel cm_t35_config[] __initdata = {
 435 };
 436
 437 static void __init cm_t35_init_irq(void)
 438 {
 439         omap_board_config = cm_t35_config;
 440         omap_board_config_size = ARRAY_SIZE(cm_t35_config);
 441
 442         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 443                              mt46h32m32lf6_sdrc_params);
 444         omap_init_irq();
 445         omap_gpio_init();
 446 }
 447
 448 static void __init cm_t35_map_io(void)
 449 {
 450         omap2_set_globals_343x();
 451         omap2_map_common_io();
 452 }
 453
 454 static void __init cm_t35_init(void)
 455 {
 456         omap_serial_init();
 457         cm_t35_init_i2c();
 458         cm_t35_init_nand();
 459         cm_t35_init_ads7846();
 460         cm_t35_init_smsc911x();
 461         cm_t35_init_led();
 462
 463         usb_musb_init();
 464
 465         omap_cfg_reg(AF26_34XX_SYS_NIRQ);
 466 }
 467
 468 MACHINE_START(CM_T35, "Compulab CM-T35")
 469         .phys_io        = 0x48000000,
 470         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 471         .boot_params    = 0x80000100,
 472         .map_io         = cm_t35_map_io,
 473         .init_irq       = cm_t35_init_irq,
 474         .init_machine   = cm_t35_init,
 475         .timer          = &omap_timer,
 476 MACHINE_END