arch/arm/mach-imx/mach-mx27_3ds.c

   1 /*
   2  * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
   3  *
   4  * Author: Fabio Estevam <fabio.estevam@freescale.com>
   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 as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 /*
  18  * This machine is known as:
  19  *  - i.MX27 3-Stack Development System
  20  *  - i.MX27 Platform Development Kit (i.MX27 PDK)
  21  */
  22
  23 #include <linux/platform_device.h>
  24 #include <linux/gpio.h>
  25 #include <linux/irq.h>
  26 #include <linux/usb/otg.h>
  27 #include <linux/usb/ulpi.h>
  28 #include <linux/delay.h>
  29 #include <linux/mfd/mc13783.h>
  30 #include <linux/spi/spi.h>
  31 #include <linux/regulator/machine.h>
  32 #include <linux/spi/l4f00242t03.h>
  33
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/time.h>
  37 #include <mach/hardware.h>
  38 #include <mach/common.h>
  39 #include <mach/iomux-mx27.h>
  40 #include <mach/ulpi.h>
  41 #include <mach/irqs.h>
  42 #include <mach/3ds_debugboard.h>
  43
  44 #include "devices-imx27.h"
  45
  46 #define SD1_EN_GPIO             IMX_GPIO_NR(2, 25)
  47 #define OTG_PHY_RESET_GPIO      IMX_GPIO_NR(2, 23)
  48 #define SPI2_SS0                IMX_GPIO_NR(4, 21)
  49 #define EXPIO_PARENT_INT        gpio_to_irq(IMX_GPIO_NR(3, 28))
  50 #define PMIC_INT                IMX_GPIO_NR(3, 14)
  51 #define SPI1_SS0                IMX_GPIO_NR(4, 28)
  52 #define SD1_CD                  IMX_GPIO_NR(2, 26)
  53 #define LCD_RESET               IMX_GPIO_NR(1, 3)
  54 #define LCD_ENABLE              IMX_GPIO_NR(1, 31)
  55
  56 static const int mx27pdk_pins[] __initconst = {
  57         /* UART1 */
  58         PE12_PF_UART1_TXD,
  59         PE13_PF_UART1_RXD,
  60         PE14_PF_UART1_CTS,
  61         PE15_PF_UART1_RTS,
  62         /* FEC */
  63         PD0_AIN_FEC_TXD0,
  64         PD1_AIN_FEC_TXD1,
  65         PD2_AIN_FEC_TXD2,
  66         PD3_AIN_FEC_TXD3,
  67         PD4_AOUT_FEC_RX_ER,
  68         PD5_AOUT_FEC_RXD1,
  69         PD6_AOUT_FEC_RXD2,
  70         PD7_AOUT_FEC_RXD3,
  71         PD8_AF_FEC_MDIO,
  72         PD9_AIN_FEC_MDC,
  73         PD10_AOUT_FEC_CRS,
  74         PD11_AOUT_FEC_TX_CLK,
  75         PD12_AOUT_FEC_RXD0,
  76         PD13_AOUT_FEC_RX_DV,
  77         PD14_AOUT_FEC_RX_CLK,
  78         PD15_AOUT_FEC_COL,
  79         PD16_AIN_FEC_TX_ER,
  80         PF23_AIN_FEC_TX_EN,
  81         /* SDHC1 */
  82         PE18_PF_SD1_D0,
  83         PE19_PF_SD1_D1,
  84         PE20_PF_SD1_D2,
  85         PE21_PF_SD1_D3,
  86         PE22_PF_SD1_CMD,
  87         PE23_PF_SD1_CLK,
  88         SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
  89         /* OTG */
  90         OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
  91         PC7_PF_USBOTG_DATA5,
  92         PC8_PF_USBOTG_DATA6,
  93         PC9_PF_USBOTG_DATA0,
  94         PC10_PF_USBOTG_DATA2,
  95         PC11_PF_USBOTG_DATA1,
  96         PC12_PF_USBOTG_DATA4,
  97         PC13_PF_USBOTG_DATA3,
  98         PE0_PF_USBOTG_NXT,
  99         PE1_PF_USBOTG_STP,
 100         PE2_PF_USBOTG_DIR,
 101         PE24_PF_USBOTG_CLK,
 102         PE25_PF_USBOTG_DATA7,
 103         /* CSPI1 */
 104         PD31_PF_CSPI1_MOSI,
 105         PD30_PF_CSPI1_MISO,
 106         PD29_PF_CSPI1_SCLK,
 107         PD25_PF_CSPI1_RDY,
 108         SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
 109         /* CSPI2 */
 110         PD22_PF_CSPI2_SCLK,
 111         PD23_PF_CSPI2_MISO,
 112         PD24_PF_CSPI2_MOSI,
 113         SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
 114         /* I2C1 */
 115         PD17_PF_I2C_DATA,
 116         PD18_PF_I2C_CLK,
 117         /* PMIC INT */
 118         PMIC_INT | GPIO_GPIO | GPIO_IN,
 119         /* LCD */
 120         PA5_PF_LSCLK,
 121         PA6_PF_LD0,
 122         PA7_PF_LD1,
 123         PA8_PF_LD2,
 124         PA9_PF_LD3,
 125         PA10_PF_LD4,
 126         PA11_PF_LD5,
 127         PA12_PF_LD6,
 128         PA13_PF_LD7,
 129         PA14_PF_LD8,
 130         PA15_PF_LD9,
 131         PA16_PF_LD10,
 132         PA17_PF_LD11,
 133         PA18_PF_LD12,
 134         PA19_PF_LD13,
 135         PA20_PF_LD14,
 136         PA21_PF_LD15,
 137         PA22_PF_LD16,
 138         PA23_PF_LD17,
 139         PA28_PF_HSYNC,
 140         PA29_PF_VSYNC,
 141         PA30_PF_CONTRAST,
 142         LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
 143         LCD_RESET | GPIO_GPIO | GPIO_OUT,
 144 };
 145
 146 static const struct imxuart_platform_data uart_pdata __initconst = {
 147         .flags = IMXUART_HAVE_RTSCTS,
 148 };
 149
 150 /*
 151  * Matrix keyboard
 152  */
 153
 154 static const uint32_t mx27_3ds_keymap[] = {
 155         KEY(0, 0, KEY_UP),
 156         KEY(0, 1, KEY_DOWN),
 157         KEY(1, 0, KEY_RIGHT),
 158         KEY(1, 1, KEY_LEFT),
 159         KEY(1, 2, KEY_ENTER),
 160         KEY(2, 0, KEY_F6),
 161         KEY(2, 1, KEY_F8),
 162         KEY(2, 2, KEY_F9),
 163         KEY(2, 3, KEY_F10),
 164 };
 165
 166 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
 167         .keymap         = mx27_3ds_keymap,
 168         .keymap_size    = ARRAY_SIZE(mx27_3ds_keymap),
 169 };
 170
 171 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 172                                 void *data)
 173 {
 174         return request_irq(gpio_to_irq(SD1_CD), detect_irq,
 175         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
 176 }
 177
 178 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
 179 {
 180         free_irq(gpio_to_irq(SD1_CD), data);
 181 }
 182
 183 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
 184         .init = mx27_3ds_sdhc1_init,
 185         .exit = mx27_3ds_sdhc1_exit,
 186 };
 187
 188 static void mx27_3ds_sdhc1_enable_level_translator(void)
 189 {
 190         /* Turn on TXB0108 OE pin */
 191         gpio_request(SD1_EN_GPIO, "sd1_enable");
 192         gpio_direction_output(SD1_EN_GPIO, 1);
 193 }
 194
 195
 196 static int otg_phy_init(void)
 197 {
 198         gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
 199         gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
 200         mdelay(1);
 201         gpio_set_value(OTG_PHY_RESET_GPIO, 1);
 202         return 0;
 203 }
 204
 205 static int mx27_3ds_otg_init(struct platform_device *pdev)
 206 {
 207         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 208 }
 209
 210 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 211         .init   = mx27_3ds_otg_init,
 212         .portsc = MXC_EHCI_MODE_ULPI,
 213 };
 214
 215 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 216         .operating_mode = FSL_USB2_DR_DEVICE,
 217         .phy_mode       = FSL_USB2_PHY_ULPI,
 218 };
 219
 220 static int otg_mode_host;
 221
 222 static int __init mx27_3ds_otg_mode(char *options)
 223 {
 224         if (!strcmp(options, "host"))
 225                 otg_mode_host = 1;
 226         else if (!strcmp(options, "device"))
 227                 otg_mode_host = 0;
 228         else
 229                 pr_info("otg_mode neither \"host\" nor \"device\". "
 230                         "Defaulting to device\n");
 231         return 0;
 232 }
 233 __setup("otg_mode=", mx27_3ds_otg_mode);
 234
 235 /* Regulators */
 236 static struct regulator_init_data gpo_init = {
 237         .constraints = {
 238                 .boot_on = 1,
 239                 .always_on = 1,
 240         }
 241 };
 242
 243 static struct regulator_consumer_supply vmmc1_consumers[] = {
 244         REGULATOR_SUPPLY("vcore", "spi0.0"),
 245 };
 246
 247 static struct regulator_init_data vmmc1_init = {
 248         .constraints = {
 249                 .min_uV = 2800000,
 250                 .max_uV = 2800000,
 251                 .apply_uV = 1,
 252                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 253                                   REGULATOR_CHANGE_STATUS,
 254         },
 255         .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
 256         .consumer_supplies = vmmc1_consumers,
 257 };
 258
 259 static struct regulator_consumer_supply vgen_consumers[] = {
 260         REGULATOR_SUPPLY("vdd", "spi0.0"),
 261 };
 262
 263 static struct regulator_init_data vgen_init = {
 264         .constraints = {
 265                 .min_uV = 1800000,
 266                 .max_uV = 1800000,
 267                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 268         },
 269         .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
 270         .consumer_supplies = vgen_consumers,
 271 };
 272
 273 static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
 274         {
 275                 .id = MC13783_REG_VMMC1,
 276                 .init_data = &vmmc1_init,
 277         }, {
 278                 .id = MC13783_REG_VGEN,
 279                 .init_data = &vgen_init,
 280         }, {
 281                 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
 282                 .init_data = &gpo_init,
 283         }, {
 284                 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
 285                 .init_data = &gpo_init,
 286         },
 287 };
 288
 289 /* MC13783 */
 290 static struct mc13xxx_platform_data mc13783_pdata = {
 291         .regulators = {
 292                 .regulators = mx27_3ds_regulators,
 293                 .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
 294
 295         },
 296         .flags  = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC,
 297 };
 298
 299 /* SPI */
 300 static int spi1_chipselect[] = {SPI1_SS0};
 301
 302 static const struct spi_imx_master spi1_pdata __initconst = {
 303         .chipselect     = spi1_chipselect,
 304         .num_chipselect = ARRAY_SIZE(spi1_chipselect),
 305 };
 306
 307 static int spi2_chipselect[] = {SPI2_SS0};
 308
 309 static const struct spi_imx_master spi2_pdata __initconst = {
 310         .chipselect     = spi2_chipselect,
 311         .num_chipselect = ARRAY_SIZE(spi2_chipselect),
 312 };
 313
 314 static struct imx_fb_videomode mx27_3ds_modes[] = {
 315         {       /* 480x640 @ 60 Hz */
 316                 .mode = {
 317                         .name           = "Epson-VGA",
 318                         .refresh        = 60,
 319                         .xres           = 480,
 320                         .yres           = 640,
 321                         .pixclock       = 41701,
 322                         .left_margin    = 20,
 323                         .right_margin   = 41,
 324                         .upper_margin   = 10,
 325                         .lower_margin   = 5,
 326                         .hsync_len      = 20,
 327                         .vsync_len      = 10,
 328                         .sync           = FB_SYNC_OE_ACT_HIGH |
 329                                                 FB_SYNC_CLK_INVERT,
 330                         .vmode          = FB_VMODE_NONINTERLACED,
 331                         .flag           = 0,
 332                 },
 333                 .bpp            = 16,
 334                 .pcr            = 0xFAC08B82,
 335         },
 336 };
 337
 338 static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
 339         .mode = mx27_3ds_modes,
 340         .num_modes = ARRAY_SIZE(mx27_3ds_modes),
 341         .pwmr           = 0x00A903FF,
 342         .lscr1          = 0x00120300,
 343         .dmacr          = 0x00020010,
 344 };
 345
 346 /* LCD */
 347 static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
 348         .reset_gpio             = LCD_RESET,
 349         .data_enable_gpio       = LCD_ENABLE,
 350 };
 351
 352 static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
 353         {
 354                 .modalias       = "mc13783",
 355                 .max_speed_hz   = 1000000,
 356                 .bus_num        = 1,
 357                 .chip_select    = 0, /* SS0 */
 358                 .platform_data  = &mc13783_pdata,
 359                 .irq = IMX_GPIO_TO_IRQ(PMIC_INT),
 360                 .mode = SPI_CS_HIGH,
 361         }, {
 362                 .modalias       = "l4f00242t03",
 363                 .max_speed_hz   = 5000000,
 364                 .bus_num        = 0,
 365                 .chip_select    = 0, /* SS0 */
 366                 .platform_data  = &mx27_3ds_lcd_pdata,
 367         },
 368 };
 369
 370 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
 371         .bitrate = 100000,
 372 };
 373
 374 static void __init mx27pdk_init(void)
 375 {
 376         imx27_soc_init();
 377
 378         mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
 379                 "mx27pdk");
 380         mx27_3ds_sdhc1_enable_level_translator();
 381         imx27_add_imx_uart0(&uart_pdata);
 382         imx27_add_fec(NULL);
 383         imx27_add_imx_keypad(&mx27_3ds_keymap_data);
 384         imx27_add_mxc_mmc(0, &sdhc1_pdata);
 385         imx27_add_imx2_wdt(NULL);
 386         otg_phy_init();
 387
 388         if (otg_mode_host) {
 389                 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 390                                 ULPI_OTG_DRVVBUS_EXT);
 391
 392                 if (otg_pdata.otg)
 393                         imx27_add_mxc_ehci_otg(&otg_pdata);
 394         }
 395
 396         if (!otg_mode_host)
 397                 imx27_add_fsl_usb2_udc(&otg_device_pdata);
 398
 399         imx27_add_spi_imx1(&spi2_pdata);
 400         imx27_add_spi_imx0(&spi1_pdata);
 401         spi_register_board_info(mx27_3ds_spi_devs,
 402                                                 ARRAY_SIZE(mx27_3ds_spi_devs));
 403
 404         if (mxc_expio_init(MX27_CS5_BASE_ADDR, EXPIO_PARENT_INT))
 405                 pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
 406         imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
 407         imx27_add_imx_fb(&mx27_3ds_fb_data);
 408 }
 409
 410 static void __init mx27pdk_timer_init(void)
 411 {
 412         mx27_clocks_init(26000000);
 413 }
 414
 415 static struct sys_timer mx27pdk_timer = {
 416         .init   = mx27pdk_timer_init,
 417 };
 418
 419 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
 420         /* maintainer: Freescale Semiconductor, Inc. */
 421         .atag_offset = 0x100,
 422         .map_io = mx27_map_io,
 423         .init_early = imx27_init_early,
 424         .init_irq = mx27_init_irq,
 425         .handle_irq = imx27_handle_irq,
 426         .timer = &mx27pdk_timer,
 427         .init_machine = mx27pdk_init,
 428         .restart        = mxc_restart,
 429 MACHINE_END