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/input/matrix_keypad.h>
  28 #include <linux/delay.h>
  29 #include <linux/gpio.h>
  30
  31 #include <linux/i2c/at24.h>
  32 #include <linux/i2c/twl4030.h>
  33 #include <linux/regulator/machine.h>
  34
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/map.h>
  38
  39 #include <plat/board.h>
  40 #include <plat/common.h>
  41 #include <plat/mux.h>
  42 #include <plat/nand.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 #define SB_T35_SMSC911X_CS      4
  56 #define SB_T35_SMSC911X_GPIO    65
  57
  58 #define NAND_BLOCK_SIZE         SZ_128K
  59 #define GPMC_CS0_BASE           0x60
  60 #define GPMC_CS0_BASE_ADDR      (OMAP34XX_GPMC_VIRT + GPMC_CS0_BASE)
  61
  62 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
  63 #include <linux/smsc911x.h>
  64
  65 static struct smsc911x_platform_config cm_t35_smsc911x_config = {
  66         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  67         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  68         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
  69         .phy_interface  = PHY_INTERFACE_MODE_MII,
  70 };
  71
  72 static struct resource cm_t35_smsc911x_resources[] = {
  73         {
  74                 .flags  = IORESOURCE_MEM,
  75         },
  76         {
  77                 .start  = OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
  78                 .end    = OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
  79                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  80         },
  81 };
  82
  83 static struct platform_device cm_t35_smsc911x_device = {
  84         .name           = "smsc911x",
  85         .id             = 0,
  86         .num_resources  = ARRAY_SIZE(cm_t35_smsc911x_resources),
  87         .resource       = cm_t35_smsc911x_resources,
  88         .dev            = {
  89                 .platform_data = &cm_t35_smsc911x_config,
  90         },
  91 };
  92
  93 static struct resource sb_t35_smsc911x_resources[] = {
  94         {
  95                 .flags  = IORESOURCE_MEM,
  96         },
  97         {
  98                 .start  = OMAP_GPIO_IRQ(SB_T35_SMSC911X_GPIO),
  99                 .end    = OMAP_GPIO_IRQ(SB_T35_SMSC911X_GPIO),
 100                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 101         },
 102 };
 103
 104 static struct platform_device sb_t35_smsc911x_device = {
 105         .name           = "smsc911x",
 106         .id             = 1,
 107         .num_resources  = ARRAY_SIZE(sb_t35_smsc911x_resources),
 108         .resource       = sb_t35_smsc911x_resources,
 109         .dev            = {
 110                 .platform_data = &cm_t35_smsc911x_config,
 111         },
 112 };
 113
 114 static void __init cm_t35_init_smsc911x(struct platform_device *dev,
 115                                         int cs, int irq_gpio)
 116 {
 117         unsigned long cs_mem_base;
 118
 119         if (gpmc_cs_request(cs, SZ_16M, &cs_mem_base) < 0) {
 120                 pr_err("CM-T35: Failed request for GPMC mem for smsc911x\n");
 121                 return;
 122         }
 123
 124         dev->resource[0].start = cs_mem_base + 0x0;
 125         dev->resource[0].end   = cs_mem_base + 0xff;
 126
 127         if ((gpio_request(irq_gpio, "ETH IRQ") == 0) &&
 128             (gpio_direction_input(irq_gpio) == 0)) {
 129                 gpio_export(irq_gpio, 0);
 130         } else {
 131                 pr_err("CM-T35: could not obtain gpio for SMSC911X IRQ\n");
 132                 return;
 133         }
 134
 135         platform_device_register(dev);
 136 }
 137
 138 static void __init cm_t35_init_ethernet(void)
 139 {
 140         cm_t35_init_smsc911x(&cm_t35_smsc911x_device,
 141                              CM_T35_SMSC911X_CS, CM_T35_SMSC911X_GPIO);
 142         cm_t35_init_smsc911x(&sb_t35_smsc911x_device,
 143                              SB_T35_SMSC911X_CS, SB_T35_SMSC911X_GPIO);
 144 }
 145 #else
 146 static inline void __init cm_t35_init_ethernet(void) { return; }
 147 #endif
 148
 149 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 150 #include <linux/leds.h>
 151
 152 static struct gpio_led cm_t35_leds[] = {
 153         [0] = {
 154                 .gpio                   = 186,
 155                 .name                   = "cm-t35:green",
 156                 .default_trigger        = "heartbeat",
 157                 .active_low             = 0,
 158         },
 159 };
 160
 161 static struct gpio_led_platform_data cm_t35_led_pdata = {
 162         .num_leds       = ARRAY_SIZE(cm_t35_leds),
 163         .leds           = cm_t35_leds,
 164 };
 165
 166 static struct platform_device cm_t35_led_device = {
 167         .name           = "leds-gpio",
 168         .id             = -1,
 169         .dev            = {
 170                 .platform_data  = &cm_t35_led_pdata,
 171         },
 172 };
 173
 174 static void __init cm_t35_init_led(void)
 175 {
 176         platform_device_register(&cm_t35_led_device);
 177 }
 178 #else
 179 static inline void cm_t35_init_led(void) {}
 180 #endif
 181
 182 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
 183 #include <linux/mtd/mtd.h>
 184 #include <linux/mtd/nand.h>
 185 #include <linux/mtd/partitions.h>
 186
 187 static struct mtd_partition cm_t35_nand_partitions[] = {
 188         {
 189                 .name           = "xloader",
 190                 .offset         = 0,                    /* Offset = 0x00000 */
 191                 .size           = 4 * NAND_BLOCK_SIZE,
 192                 .mask_flags     = MTD_WRITEABLE
 193         },
 194         {
 195                 .name           = "uboot",
 196                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 197                 .size           = 15 * NAND_BLOCK_SIZE,
 198         },
 199         {
 200                 .name           = "uboot environment",
 201                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 202                 .size           = 2 * NAND_BLOCK_SIZE,
 203         },
 204         {
 205                 .name           = "linux",
 206                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 207                 .size           = 32 * NAND_BLOCK_SIZE,
 208         },
 209         {
 210                 .name           = "rootfs",
 211                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 212                 .size           = MTDPART_SIZ_FULL,
 213         },
 214 };
 215
 216 static struct omap_nand_platform_data cm_t35_nand_data = {
 217         .parts                  = cm_t35_nand_partitions,
 218         .nr_parts               = ARRAY_SIZE(cm_t35_nand_partitions),
 219         .dma_channel            = -1,   /* disable DMA in OMAP NAND driver */
 220         .cs                     = 0,
 221         .gpmc_cs_baseaddr       = (void __iomem *)GPMC_CS0_BASE_ADDR,
 222         .gpmc_baseaddr          = (void __iomem *)OMAP34XX_GPMC_VIRT,
 223
 224 };
 225
 226 static struct resource cm_t35_nand_resource = {
 227         .flags          = IORESOURCE_MEM,
 228 };
 229
 230 static struct platform_device cm_t35_nand_device = {
 231         .name           = "omap2-nand",
 232         .id             = -1,
 233         .num_resources  = 1,
 234         .resource       = &cm_t35_nand_resource,
 235         .dev            = {
 236                 .platform_data  = &cm_t35_nand_data,
 237         },
 238 };
 239
 240 static void __init cm_t35_init_nand(void)
 241 {
 242         if (platform_device_register(&cm_t35_nand_device) < 0)
 243                 pr_err("CM-T35: Unable to register NAND device\n");
 244 }
 245 #else
 246 static inline void cm_t35_init_nand(void) {}
 247 #endif
 248
 249 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
 250         defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 251 #include <linux/spi/spi.h>
 252 #include <linux/spi/ads7846.h>
 253
 254 #include <plat/mcspi.h>
 255
 256 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
 257         .turbo_mode     = 0,
 258         .single_channel = 1,    /* 0: slave, 1: master */
 259 };
 260
 261 static int ads7846_get_pendown_state(void)
 262 {
 263         return !gpio_get_value(CM_T35_GPIO_PENDOWN);
 264 }
 265
 266 static struct ads7846_platform_data ads7846_config = {
 267         .x_max                  = 0x0fff,
 268         .y_max                  = 0x0fff,
 269         .x_plate_ohms           = 180,
 270         .pressure_max           = 255,
 271         .debounce_max           = 10,
 272         .debounce_tol           = 3,
 273         .debounce_rep           = 1,
 274         .get_pendown_state      = ads7846_get_pendown_state,
 275         .keep_vref_on           = 1,
 276 };
 277
 278 static struct spi_board_info cm_t35_spi_board_info[] __initdata = {
 279         {
 280                 .modalias               = "ads7846",
 281                 .bus_num                = 1,
 282                 .chip_select            = 0,
 283                 .max_speed_hz           = 1500000,
 284                 .controller_data        = &ads7846_mcspi_config,
 285                 .irq                    = OMAP_GPIO_IRQ(CM_T35_GPIO_PENDOWN),
 286                 .platform_data          = &ads7846_config,
 287         },
 288 };
 289
 290 static void __init cm_t35_init_ads7846(void)
 291 {
 292         if ((gpio_request(CM_T35_GPIO_PENDOWN, "ADS7846_PENDOWN") == 0) &&
 293             (gpio_direction_input(CM_T35_GPIO_PENDOWN) == 0)) {
 294                 gpio_export(CM_T35_GPIO_PENDOWN, 0);
 295         } else {
 296                 pr_err("CM-T35: could not obtain gpio for ADS7846_PENDOWN\n");
 297                 return;
 298         }
 299
 300         spi_register_board_info(cm_t35_spi_board_info,
 301                                 ARRAY_SIZE(cm_t35_spi_board_info));
 302 }
 303 #else
 304 static inline void cm_t35_init_ads7846(void) {}
 305 #endif
 306
 307 static struct regulator_consumer_supply cm_t35_vmmc1_supply = {
 308         .supply                 = "vmmc",
 309 };
 310
 311 static struct regulator_consumer_supply cm_t35_vsim_supply = {
 312         .supply                 = "vmmc_aux",
 313 };
 314
 315 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 316 static struct regulator_init_data cm_t35_vmmc1 = {
 317         .constraints = {
 318                 .min_uV                 = 1850000,
 319                 .max_uV                 = 3150000,
 320                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 321                                         | REGULATOR_MODE_STANDBY,
 322                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 323                                         | REGULATOR_CHANGE_MODE
 324                                         | REGULATOR_CHANGE_STATUS,
 325         },
 326         .num_consumer_supplies  = 1,
 327         .consumer_supplies      = &cm_t35_vmmc1_supply,
 328 };
 329
 330 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 331 static struct regulator_init_data cm_t35_vsim = {
 332         .constraints = {
 333                 .min_uV                 = 1800000,
 334                 .max_uV                 = 3000000,
 335                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 336                                         | REGULATOR_MODE_STANDBY,
 337                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 338                                         | REGULATOR_CHANGE_MODE
 339                                         | REGULATOR_CHANGE_STATUS,
 340         },
 341         .num_consumer_supplies  = 1,
 342         .consumer_supplies      = &cm_t35_vsim_supply,
 343 };
 344
 345 static struct twl4030_usb_data cm_t35_usb_data = {
 346         .usb_mode       = T2_USB_MODE_ULPI,
 347 };
 348
 349 static int cm_t35_keymap[] = {
 350         KEY(0, 0, KEY_A),       KEY(0, 1, KEY_B),       KEY(0, 2, KEY_LEFT),
 351         KEY(1, 0, KEY_UP),      KEY(1, 1, KEY_ENTER),   KEY(1, 2, KEY_DOWN),
 352         KEY(2, 0, KEY_RIGHT),   KEY(2, 1, KEY_C),       KEY(2, 2, KEY_D),
 353 };
 354
 355 static struct matrix_keymap_data cm_t35_keymap_data = {
 356         .keymap                 = cm_t35_keymap,
 357         .keymap_size            = ARRAY_SIZE(cm_t35_keymap),
 358 };
 359
 360 static struct twl4030_keypad_data cm_t35_kp_data = {
 361         .keymap_data    = &cm_t35_keymap_data,
 362         .rows           = 3,
 363         .cols           = 3,
 364         .rep            = 1,
 365 };
 366
 367 static struct twl4030_hsmmc_info mmc[] = {
 368         {
 369                 .mmc            = 1,
 370                 .wires          = 4,
 371                 .gpio_cd        = -EINVAL,
 372                 .gpio_wp        = -EINVAL,
 373
 374         },
 375         {
 376                 .mmc            = 2,
 377                 .wires          = 4,
 378                 .transceiver    = 1,
 379                 .gpio_cd        = -EINVAL,
 380                 .gpio_wp        = -EINVAL,
 381                 .ocr_mask       = 0x00100000,   /* 3.3V */
 382         },
 383         {}      /* Terminator */
 384 };
 385
 386 static struct ehci_hcd_omap_platform_data ehci_pdata = {
 387         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 388         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 389         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 390
 391         .phy_reset  = true,
 392         .reset_gpio_port[0]  = -EINVAL,
 393         .reset_gpio_port[1]  = -EINVAL,
 394         .reset_gpio_port[2]  = -EINVAL
 395 };
 396
 397 static int cm_t35_twl_gpio_setup(struct device *dev, unsigned gpio,
 398                                  unsigned ngpio)
 399 {
 400         int wlan_rst = gpio + 2;
 401
 402         if ((gpio_request(wlan_rst, "WLAN RST") == 0) &&
 403             (gpio_direction_output(wlan_rst, 1) == 0)) {
 404                 gpio_export(wlan_rst, 0);
 405
 406                 udelay(10);
 407                 gpio_set_value(wlan_rst, 0);
 408                 udelay(10);
 409                 gpio_set_value(wlan_rst, 1);
 410         } else {
 411                 pr_err("CM-T35: could not obtain gpio for WiFi reset\n");
 412         }
 413
 414         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 415         mmc[0].gpio_cd = gpio + 0;
 416         twl4030_mmc_init(mmc);
 417
 418         /* link regulators to MMC adapters */
 419         cm_t35_vmmc1_supply.dev = mmc[0].dev;
 420         cm_t35_vsim_supply.dev = mmc[0].dev;
 421
 422         /* setup USB with proper PHY reset GPIOs */
 423         ehci_pdata.reset_gpio_port[0] = gpio + 6;
 424         ehci_pdata.reset_gpio_port[1] = gpio + 7;
 425
 426         usb_ehci_init(&ehci_pdata);
 427
 428         return 0;
 429 }
 430
 431 static struct twl4030_gpio_platform_data cm_t35_gpio_data = {
 432         .gpio_base      = OMAP_MAX_GPIO_LINES,
 433         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 434         .irq_end        = TWL4030_GPIO_IRQ_END,
 435         .setup          = cm_t35_twl_gpio_setup,
 436 };
 437
 438 static struct twl4030_platform_data cm_t35_twldata = {
 439         .irq_base       = TWL4030_IRQ_BASE,
 440         .irq_end        = TWL4030_IRQ_END,
 441
 442         /* platform_data for children goes here */
 443         .keypad         = &cm_t35_kp_data,
 444         .usb            = &cm_t35_usb_data,
 445         .gpio           = &cm_t35_gpio_data,
 446         .vmmc1          = &cm_t35_vmmc1,
 447         .vsim           = &cm_t35_vsim,
 448 };
 449
 450 static struct i2c_board_info __initdata cm_t35_i2c_boardinfo[] = {
 451         {
 452                 I2C_BOARD_INFO("tps65930", 0x48),
 453                 .flags          = I2C_CLIENT_WAKE,
 454                 .irq            = INT_34XX_SYS_NIRQ,
 455                 .platform_data  = &cm_t35_twldata,
 456         },
 457 };
 458
 459 static void __init cm_t35_init_i2c(void)
 460 {
 461         omap_register_i2c_bus(1, 2600, cm_t35_i2c_boardinfo,
 462                               ARRAY_SIZE(cm_t35_i2c_boardinfo));
 463 }
 464
 465 static struct omap_board_config_kernel cm_t35_config[] __initdata = {
 466 };
 467
 468 static void __init cm_t35_init_irq(void)
 469 {
 470         omap_board_config = cm_t35_config;
 471         omap_board_config_size = ARRAY_SIZE(cm_t35_config);
 472
 473         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 474                              mt46h32m32lf6_sdrc_params);
 475         omap_init_irq();
 476         omap_gpio_init();
 477 }
 478
 479 static void __init cm_t35_map_io(void)
 480 {
 481         omap2_set_globals_343x();
 482         omap2_map_common_io();
 483 }
 484
 485 static void __init cm_t35_init(void)
 486 {
 487         omap_serial_init();
 488         cm_t35_init_i2c();
 489         cm_t35_init_nand();
 490         cm_t35_init_ads7846();
 491         cm_t35_init_ethernet();
 492         cm_t35_init_led();
 493
 494         usb_musb_init();
 495
 496         omap_cfg_reg(AF26_34XX_SYS_NIRQ);
 497 }
 498
 499 MACHINE_START(CM_T35, "Compulab CM-T35")
 500         .phys_io        = 0x48000000,
 501         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 502         .boot_params    = 0x80000100,
 503         .map_io         = cm_t35_map_io,
 504         .init_irq       = cm_t35_init_irq,
 505         .init_machine   = cm_t35_init,
 506         .timer          = &omap_timer,
 507 MACHINE_END