arch/arm/mach-imx/mach-pca100.c

   1 /*
   2  * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
   3  * Copyright (C) 2009 Sascha Hauer (kernel@pengutronix.de)
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  17  * MA 02110-1301, USA.
  18  */
  19
  20 #include <linux/platform_device.h>
  21 #include <linux/io.h>
  22 #include <linux/i2c.h>
  23 #include <linux/i2c/at24.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/spi/spi.h>
  26 #include <linux/spi/eeprom.h>
  27 #include <linux/irq.h>
  28 #include <linux/delay.h>
  29 #include <linux/gpio.h>
  30 #include <linux/usb/otg.h>
  31 #include <linux/usb/ulpi.h>
  32 #include <linux/fsl_devices.h>
  33
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach-types.h>
  36 #include <mach/common.h>
  37 #include <mach/hardware.h>
  38 #include <mach/iomux-mx27.h>
  39 #include <asm/mach/time.h>
  40 #include <mach/audmux.h>
  41 #include <mach/ssi.h>
  42 #include <mach/mxc_nand.h>
  43 #include <mach/irqs.h>
  44 #include <mach/mmc.h>
  45 #include <mach/mxc_ehci.h>
  46 #include <mach/ulpi.h>
  47 #include <mach/imxfb.h>
  48
  49 #include "devices-imx27.h"
  50 #include "devices.h"
  51
  52 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
  53 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
  54 #define SPI1_SS0 (GPIO_PORTD + 28)
  55 #define SPI1_SS1 (GPIO_PORTD + 27)
  56 #define SD2_CD (GPIO_PORTC + 29)
  57
  58 static int pca100_pins[] = {
  59         /* UART1 */
  60         PE12_PF_UART1_TXD,
  61         PE13_PF_UART1_RXD,
  62         PE14_PF_UART1_CTS,
  63         PE15_PF_UART1_RTS,
  64         /* SDHC */
  65         PB4_PF_SD2_D0,
  66         PB5_PF_SD2_D1,
  67         PB6_PF_SD2_D2,
  68         PB7_PF_SD2_D3,
  69         PB8_PF_SD2_CMD,
  70         PB9_PF_SD2_CLK,
  71         SD2_CD | GPIO_GPIO | GPIO_IN,
  72         /* FEC */
  73         PD0_AIN_FEC_TXD0,
  74         PD1_AIN_FEC_TXD1,
  75         PD2_AIN_FEC_TXD2,
  76         PD3_AIN_FEC_TXD3,
  77         PD4_AOUT_FEC_RX_ER,
  78         PD5_AOUT_FEC_RXD1,
  79         PD6_AOUT_FEC_RXD2,
  80         PD7_AOUT_FEC_RXD3,
  81         PD8_AF_FEC_MDIO,
  82         PD9_AIN_FEC_MDC,
  83         PD10_AOUT_FEC_CRS,
  84         PD11_AOUT_FEC_TX_CLK,
  85         PD12_AOUT_FEC_RXD0,
  86         PD13_AOUT_FEC_RX_DV,
  87         PD14_AOUT_FEC_RX_CLK,
  88         PD15_AOUT_FEC_COL,
  89         PD16_AIN_FEC_TX_ER,
  90         PF23_AIN_FEC_TX_EN,
  91         /* SSI1 */
  92         PC20_PF_SSI1_FS,
  93         PC21_PF_SSI1_RXD,
  94         PC22_PF_SSI1_TXD,
  95         PC23_PF_SSI1_CLK,
  96         /* onboard I2C */
  97         PC5_PF_I2C2_SDA,
  98         PC6_PF_I2C2_SCL,
  99         /* external I2C */
 100         PD17_PF_I2C_DATA,
 101         PD18_PF_I2C_CLK,
 102         /* SPI1 */
 103         PD25_PF_CSPI1_RDY,
 104         PD29_PF_CSPI1_SCLK,
 105         PD30_PF_CSPI1_MISO,
 106         PD31_PF_CSPI1_MOSI,
 107         /* OTG */
 108         OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
 109         PC7_PF_USBOTG_DATA5,
 110         PC8_PF_USBOTG_DATA6,
 111         PC9_PF_USBOTG_DATA0,
 112         PC10_PF_USBOTG_DATA2,
 113         PC11_PF_USBOTG_DATA1,
 114         PC12_PF_USBOTG_DATA4,
 115         PC13_PF_USBOTG_DATA3,
 116         PE0_PF_USBOTG_NXT,
 117         PE1_PF_USBOTG_STP,
 118         PE2_PF_USBOTG_DIR,
 119         PE24_PF_USBOTG_CLK,
 120         PE25_PF_USBOTG_DATA7,
 121         /* USBH2 */
 122         USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
 123         PA0_PF_USBH2_CLK,
 124         PA1_PF_USBH2_DIR,
 125         PA2_PF_USBH2_DATA7,
 126         PA3_PF_USBH2_NXT,
 127         PA4_PF_USBH2_STP,
 128         PD19_AF_USBH2_DATA4,
 129         PD20_AF_USBH2_DATA3,
 130         PD21_AF_USBH2_DATA6,
 131         PD22_AF_USBH2_DATA0,
 132         PD23_AF_USBH2_DATA2,
 133         PD24_AF_USBH2_DATA1,
 134         PD26_AF_USBH2_DATA5,
 135         /* display */
 136         PA5_PF_LSCLK,
 137         PA6_PF_LD0,
 138         PA7_PF_LD1,
 139         PA8_PF_LD2,
 140         PA9_PF_LD3,
 141         PA10_PF_LD4,
 142         PA11_PF_LD5,
 143         PA12_PF_LD6,
 144         PA13_PF_LD7,
 145         PA14_PF_LD8,
 146         PA15_PF_LD9,
 147         PA16_PF_LD10,
 148         PA17_PF_LD11,
 149         PA18_PF_LD12,
 150         PA19_PF_LD13,
 151         PA20_PF_LD14,
 152         PA21_PF_LD15,
 153         PA22_PF_LD16,
 154         PA23_PF_LD17,
 155         PA26_PF_PS,
 156         PA28_PF_HSYNC,
 157         PA29_PF_VSYNC,
 158         PA31_PF_OE_ACD,
 159         /* free GPIO */
 160         GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
 161         GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
 162         GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
 163 };
 164
 165 static const struct imxuart_platform_data uart_pdata __initconst = {
 166         .flags = IMXUART_HAVE_RTSCTS,
 167 };
 168
 169 static const struct mxc_nand_platform_data
 170 pca100_nand_board_info __initconst = {
 171         .width = 1,
 172         .hw_ecc = 1,
 173 };
 174
 175 static struct platform_device *platform_devices[] __initdata = {
 176         &mxc_w1_master_device,
 177         &mxc_fec_device,
 178         &mxc_wdt,
 179 };
 180
 181 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
 182         .bitrate = 100000,
 183 };
 184
 185 static struct at24_platform_data board_eeprom = {
 186         .byte_len = 4096,
 187         .page_size = 32,
 188         .flags = AT24_FLAG_ADDR16,
 189 };
 190
 191 static struct i2c_board_info pca100_i2c_devices[] = {
 192         {
 193                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 194                 .platform_data = &board_eeprom,
 195         }, {
 196                 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
 197                 .type = "pcf8563"
 198         }, {
 199                 I2C_BOARD_INFO("lm75", 0x4a),
 200                 .type = "lm75"
 201         }
 202 };
 203
 204 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
 205 static struct spi_eeprom at25320 = {
 206         .name           = "at25320an",
 207         .byte_len       = 4096,
 208         .page_size      = 32,
 209         .flags          = EE_ADDR2,
 210 };
 211
 212 static struct spi_board_info pca100_spi_board_info[] __initdata = {
 213         {
 214                 .modalias = "at25",
 215                 .max_speed_hz = 30000,
 216                 .bus_num = 0,
 217                 .chip_select = 1,
 218                 .platform_data = &at25320,
 219         },
 220 };
 221
 222 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
 223
 224 static const struct spi_imx_master pca100_spi0_data __initconst = {
 225         .chipselect     = pca100_spi_cs,
 226         .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
 227 };
 228 #endif
 229
 230 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
 231 {
 232         mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
 233         gpio_set_value(GPIO_PORTC + 20, 1);
 234         udelay(2);
 235         gpio_set_value(GPIO_PORTC + 20, 0);
 236         mxc_gpio_mode(PC20_PF_SSI1_FS);
 237         msleep(2);
 238 }
 239
 240 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
 241 {
 242         mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);  /* FS */
 243         gpio_set_value(GPIO_PORTC + 20, 0);
 244         mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT);  /* TX */
 245         gpio_set_value(GPIO_PORTC + 22, 0);
 246         mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT);  /* reset */
 247         gpio_set_value(GPIO_PORTC + 28, 0);
 248         udelay(10);
 249         gpio_set_value(GPIO_PORTC + 28, 1);
 250         mxc_gpio_mode(PC20_PF_SSI1_FS);
 251         mxc_gpio_mode(PC22_PF_SSI1_TXD);
 252         msleep(2);
 253 }
 254
 255 static struct imx_ssi_platform_data pca100_ssi_pdata = {
 256         .ac97_reset             = pca100_ac97_cold_reset,
 257         .ac97_warm_reset        = pca100_ac97_warm_reset,
 258         .flags                  = IMX_SSI_USE_AC97,
 259 };
 260
 261 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
 262                 void *data)
 263 {
 264         int ret;
 265
 266         ret = request_irq(IRQ_GPIOC(29), detect_irq,
 267                           IRQF_DISABLED | IRQF_TRIGGER_FALLING,
 268                           "imx-mmc-detect", data);
 269         if (ret)
 270                 printk(KERN_ERR
 271                         "pca100: Failed to reuest irq for sd/mmc detection\n");
 272
 273         return ret;
 274 }
 275
 276 static void pca100_sdhc2_exit(struct device *dev, void *data)
 277 {
 278         free_irq(IRQ_GPIOC(29), data);
 279 }
 280
 281 static struct imxmmc_platform_data sdhc_pdata = {
 282         .init = pca100_sdhc2_init,
 283         .exit = pca100_sdhc2_exit,
 284 };
 285
 286 #if defined(CONFIG_USB_ULPI)
 287 static int otg_phy_init(struct platform_device *pdev)
 288 {
 289         gpio_set_value(OTG_PHY_CS_GPIO, 0);
 290         return 0;
 291 }
 292
 293 static struct mxc_usbh_platform_data otg_pdata = {
 294         .init   = otg_phy_init,
 295         .portsc = MXC_EHCI_MODE_ULPI,
 296         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
 297 };
 298
 299 static int usbh2_phy_init(struct platform_device *pdev)
 300 {
 301         gpio_set_value(USBH2_PHY_CS_GPIO, 0);
 302         return 0;
 303 }
 304
 305 static struct mxc_usbh_platform_data usbh2_pdata = {
 306         .init   = usbh2_phy_init,
 307         .portsc = MXC_EHCI_MODE_ULPI,
 308         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
 309 };
 310 #endif
 311
 312 static struct fsl_usb2_platform_data otg_device_pdata = {
 313         .operating_mode = FSL_USB2_DR_DEVICE,
 314         .phy_mode       = FSL_USB2_PHY_ULPI,
 315 };
 316
 317 static int otg_mode_host;
 318
 319 static int __init pca100_otg_mode(char *options)
 320 {
 321         if (!strcmp(options, "host"))
 322                 otg_mode_host = 1;
 323         else if (!strcmp(options, "device"))
 324                 otg_mode_host = 0;
 325         else
 326                 pr_info("otg_mode neither \"host\" nor \"device\". "
 327                         "Defaulting to device\n");
 328         return 0;
 329 }
 330 __setup("otg_mode=", pca100_otg_mode);
 331
 332 /* framebuffer info */
 333 static struct imx_fb_videomode pca100_fb_modes[] = {
 334         {
 335                 .mode = {
 336                         .name           = "EMERGING-ETV570G0DHU",
 337                         .refresh        = 60,
 338                         .xres           = 640,
 339                         .yres           = 480,
 340                         .pixclock       = 39722, /* in ps (25.175 MHz) */
 341                         .hsync_len      = 30,
 342                         .left_margin    = 114,
 343                         .right_margin   = 16,
 344                         .vsync_len      = 3,
 345                         .upper_margin   = 32,
 346                         .lower_margin   = 0,
 347                 },
 348                 /*
 349                  * TFT
 350                  * Pixel pol active high
 351                  * HSYNC active low
 352                  * VSYNC active low
 353                  * use HSYNC for ACD count
 354                  * line clock disable while idle
 355                  * always enable line clock even if no data
 356                  */
 357                 .pcr = 0xf0c08080,
 358                 .bpp = 16,
 359         },
 360 };
 361
 362 static struct imx_fb_platform_data pca100_fb_data = {
 363         .mode = pca100_fb_modes,
 364         .num_modes = ARRAY_SIZE(pca100_fb_modes),
 365
 366         .pwmr           = 0x00A903FF,
 367         .lscr1          = 0x00120300,
 368         .dmacr          = 0x00020010,
 369 };
 370
 371 static void __init pca100_init(void)
 372 {
 373         int ret;
 374
 375         /* SSI unit */
 376         mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
 377                                   MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
 378                                   MXC_AUDMUX_V1_PCR_TFCSEL(3) |
 379                                   MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
 380                                   MXC_AUDMUX_V1_PCR_RXDSEL(3));
 381         mxc_audmux_v1_configure_port(3,
 382                                   MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
 383                                   MXC_AUDMUX_V1_PCR_TFCSEL(0) |
 384                                   MXC_AUDMUX_V1_PCR_TFSDIR |
 385                                   MXC_AUDMUX_V1_PCR_RXDSEL(0));
 386
 387         ret = mxc_gpio_setup_multiple_pins(pca100_pins,
 388                         ARRAY_SIZE(pca100_pins), "PCA100");
 389         if (ret)
 390                 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
 391
 392         mxc_register_device(&imx_ssi_device0, &pca100_ssi_pdata);
 393
 394         imx27_add_imx_uart0(&uart_pdata);
 395
 396         mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
 397
 398         imx27_add_mxc_nand(&pca100_nand_board_info);
 399
 400         /* only the i2c master 1 is used on this CPU card */
 401         i2c_register_board_info(1, pca100_i2c_devices,
 402                                 ARRAY_SIZE(pca100_i2c_devices));
 403
 404         imx27_add_i2c_imx1(&pca100_i2c1_data);
 405
 406 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
 407         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
 408         mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
 409         spi_register_board_info(pca100_spi_board_info,
 410                                 ARRAY_SIZE(pca100_spi_board_info));
 411         imx27_add_spi_imx0(&pca100_spi0_data);
 412 #endif
 413
 414         gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
 415         gpio_direction_output(OTG_PHY_CS_GPIO, 1);
 416         gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
 417         gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
 418
 419 #if defined(CONFIG_USB_ULPI)
 420         if (otg_mode_host) {
 421                 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
 422                                 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
 423
 424                 mxc_register_device(&mxc_otg_host, &otg_pdata);
 425         }
 426
 427         usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
 428                                 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
 429
 430         mxc_register_device(&mxc_usbh2, &usbh2_pdata);
 431 #endif
 432         if (!otg_mode_host) {
 433                 gpio_set_value(OTG_PHY_CS_GPIO, 0);
 434                 mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
 435         }
 436
 437         mxc_register_device(&mxc_fb_device, &pca100_fb_data);
 438
 439         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 440 }
 441
 442 static void __init pca100_timer_init(void)
 443 {
 444         mx27_clocks_init(26000000);
 445 }
 446
 447 static struct sys_timer pca100_timer = {
 448         .init = pca100_timer_init,
 449 };
 450
 451 MACHINE_START(PCA100, "phyCARD-i.MX27")
 452         .phys_io        = MX27_AIPI_BASE_ADDR,
 453         .io_pg_offst    = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 454         .boot_params    = MX27_PHYS_OFFSET + 0x100,
 455         .map_io         = mx27_map_io,
 456         .init_irq       = mx27_init_irq,
 457         .init_machine   = pca100_init,
 458         .timer          = &pca100_timer,
 459 MACHINE_END
 460