arch/arm/mach-omap2/board-am3517evm.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-am3517evm.c
   3  *
   4  * Copyright (C) 2009 Texas Instruments Incorporated
   5  * Author: Ranjith Lohithakshan <ranjithl@ti.com>
   6  *
   7  * Based on mach-omap2/board-omap3evm.c
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as  published by the
  11  * Free Software Foundation version 2.
  12  *
  13  * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
  14  * whether express or implied; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/init.h>
  21 #include <linux/clk.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/gpio.h>
  24 #include <linux/i2c/pca953x.h>
  25 #include <linux/can/platform/ti_hecc.h>
  26 #include <linux/davinci_emac.h>
  27 #include <linux/mmc/host.h>
  28
  29 #include <mach/hardware.h>
  30 #include <mach/am35xx.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <plat/board.h>
  36 #include "common.h"
  37 #include <plat/usb.h>
  38 #include <video/omapdss.h>
  39 #include <video/omap-panel-generic-dpi.h>
  40 #include <video/omap-panel-dvi.h>
  41
  42 #include "mux.h"
  43 #include "control.h"
  44 #include "hsmmc.h"
  45
  46 #define AM35XX_EVM_MDIO_FREQUENCY       (1000000)
  47
  48 static struct mdio_platform_data am3517_evm_mdio_pdata = {
  49         .bus_freq       = AM35XX_EVM_MDIO_FREQUENCY,
  50 };
  51
  52 static struct resource am3517_mdio_resources[] = {
  53         {
  54                 .start  = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
  55                 .end    = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
  56                           SZ_4K - 1,
  57                 .flags  = IORESOURCE_MEM,
  58         },
  59 };
  60
  61 static struct platform_device am3517_mdio_device = {
  62         .name           = "davinci_mdio",
  63         .id             = 0,
  64         .num_resources  = ARRAY_SIZE(am3517_mdio_resources),
  65         .resource       = am3517_mdio_resources,
  66         .dev.platform_data = &am3517_evm_mdio_pdata,
  67 };
  68
  69 static struct emac_platform_data am3517_evm_emac_pdata = {
  70         .rmii_en        = 1,
  71 };
  72
  73 static struct resource am3517_emac_resources[] = {
  74         {
  75                 .start  = AM35XX_IPSS_EMAC_BASE,
  76                 .end    = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
  77                 .flags  = IORESOURCE_MEM,
  78         },
  79         {
  80                 .start  = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
  81                 .end    = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
  82                 .flags  = IORESOURCE_IRQ,
  83         },
  84         {
  85                 .start  = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
  86                 .end    = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
  87                 .flags  = IORESOURCE_IRQ,
  88         },
  89         {
  90                 .start  = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
  91                 .end    = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
  92                 .flags  = IORESOURCE_IRQ,
  93         },
  94         {
  95                 .start  = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
  96                 .end    = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
  97                 .flags  = IORESOURCE_IRQ,
  98         },
  99 };
 100
 101 static struct platform_device am3517_emac_device = {
 102         .name           = "davinci_emac",
 103         .id             = -1,
 104         .num_resources  = ARRAY_SIZE(am3517_emac_resources),
 105         .resource       = am3517_emac_resources,
 106 };
 107
 108 static void am3517_enable_ethernet_int(void)
 109 {
 110         u32 regval;
 111
 112         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 113         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
 114                 AM35XX_CPGMAC_C0_TX_PULSE_CLR |
 115                 AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
 116                 AM35XX_CPGMAC_C0_RX_THRESH_CLR);
 117         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
 118         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 119 }
 120
 121 static void am3517_disable_ethernet_int(void)
 122 {
 123         u32 regval;
 124
 125         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 126         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
 127                 AM35XX_CPGMAC_C0_TX_PULSE_CLR);
 128         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
 129         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 130 }
 131
 132 static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
 133 {
 134         unsigned int regval;
 135
 136         pdata->ctrl_reg_offset          = AM35XX_EMAC_CNTRL_OFFSET;
 137         pdata->ctrl_mod_reg_offset      = AM35XX_EMAC_CNTRL_MOD_OFFSET;
 138         pdata->ctrl_ram_offset          = AM35XX_EMAC_CNTRL_RAM_OFFSET;
 139         pdata->ctrl_ram_size            = AM35XX_EMAC_CNTRL_RAM_SIZE;
 140         pdata->version                  = EMAC_VERSION_2;
 141         pdata->hw_ram_addr              = AM35XX_EMAC_HW_RAM_ADDR;
 142         pdata->interrupt_enable         = am3517_enable_ethernet_int;
 143         pdata->interrupt_disable        = am3517_disable_ethernet_int;
 144         am3517_emac_device.dev.platform_data    = pdata;
 145         platform_device_register(&am3517_emac_device);
 146         platform_device_register(&am3517_mdio_device);
 147         clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
 148                       NULL, &am3517_emac_device.dev);
 149
 150         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 151         regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
 152         omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
 153         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 154
 155         return ;
 156 }
 157
 158
 159
 160 #define LCD_PANEL_PWR           176
 161 #define LCD_PANEL_BKLIGHT_PWR   182
 162 #define LCD_PANEL_PWM           181
 163
 164 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
 165         {
 166                 I2C_BOARD_INFO("s35390a", 0x30),
 167         },
 168 };
 169
 170 /*
 171  * RTC - S35390A
 172  */
 173 #define GPIO_RTCS35390A_IRQ     55
 174
 175 static void __init am3517_evm_rtc_init(void)
 176 {
 177         int r;
 178
 179         omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
 180
 181         r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
 182         if (r < 0) {
 183                 printk(KERN_WARNING "failed to request GPIO#%d\n",
 184                                 GPIO_RTCS35390A_IRQ);
 185                 return;
 186         }
 187
 188         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
 189 }
 190
 191 /*
 192  * I2C GPIO Expander - TCA6416
 193  */
 194
 195 /* Mounted on Base-Board */
 196 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
 197         .gpio_base      = OMAP_MAX_GPIO_LINES,
 198 };
 199 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
 200         {
 201                 I2C_BOARD_INFO("tlv320aic23", 0x1A),
 202         },
 203         {
 204                 I2C_BOARD_INFO("tca6416", 0x21),
 205                 .platform_data = &am3517evm_gpio_expander_info_0,
 206         },
 207 };
 208
 209 /* Mounted on UI Card */
 210 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
 211         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
 212 };
 213 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
 214         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
 215 };
 216 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
 217         {
 218                 I2C_BOARD_INFO("tca6416", 0x20),
 219                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
 220         },
 221         {
 222                 I2C_BOARD_INFO("tca6416", 0x21),
 223                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
 224         },
 225 };
 226
 227 static int __init am3517_evm_i2c_init(void)
 228 {
 229         omap_register_i2c_bus(1, 400, NULL, 0);
 230         omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
 231                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
 232         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
 233                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
 234
 235         return 0;
 236 }
 237
 238 static int lcd_enabled;
 239 static int dvi_enabled;
 240
 241 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 242                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 243 static struct gpio am3517_evm_dss_gpios[] __initdata = {
 244         /* GPIO 182 = LCD Backlight Power */
 245         { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
 246         /* GPIO 181 = LCD Panel PWM */
 247         { LCD_PANEL_PWM,         GPIOF_OUT_INIT_HIGH, "lcd bl enable"     },
 248         /* GPIO 176 = LCD Panel Power enable pin */
 249         { LCD_PANEL_PWR,         GPIOF_OUT_INIT_HIGH, "dvi enable"        },
 250 };
 251
 252 static void __init am3517_evm_display_init(void)
 253 {
 254         int r;
 255
 256         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 257         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 258         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 259
 260         r = gpio_request_array(am3517_evm_dss_gpios,
 261                                ARRAY_SIZE(am3517_evm_dss_gpios));
 262         if (r) {
 263                 printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
 264                 return;
 265         }
 266
 267         printk(KERN_INFO "Display initialized successfully\n");
 268 }
 269 #else
 270 static void __init am3517_evm_display_init(void) {}
 271 #endif
 272
 273 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 274 {
 275         if (dvi_enabled) {
 276                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 277                 return -EINVAL;
 278         }
 279         gpio_set_value(LCD_PANEL_PWR, 1);
 280         lcd_enabled = 1;
 281
 282         return 0;
 283 }
 284
 285 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 286 {
 287         gpio_set_value(LCD_PANEL_PWR, 0);
 288         lcd_enabled = 0;
 289 }
 290
 291 static struct panel_generic_dpi_data lcd_panel = {
 292         .name                   = "sharp_lq",
 293         .platform_enable        = am3517_evm_panel_enable_lcd,
 294         .platform_disable       = am3517_evm_panel_disable_lcd,
 295 };
 296
 297 static struct omap_dss_device am3517_evm_lcd_device = {
 298         .type                   = OMAP_DISPLAY_TYPE_DPI,
 299         .name                   = "lcd",
 300         .driver_name            = "generic_dpi_panel",
 301         .data                   = &lcd_panel,
 302         .phy.dpi.data_lines     = 16,
 303 };
 304
 305 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 306 {
 307         return 0;
 308 }
 309
 310 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 311 {
 312 }
 313
 314 static struct omap_dss_device am3517_evm_tv_device = {
 315         .type                   = OMAP_DISPLAY_TYPE_VENC,
 316         .name                   = "tv",
 317         .driver_name            = "venc",
 318         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 319         .platform_enable        = am3517_evm_panel_enable_tv,
 320         .platform_disable       = am3517_evm_panel_disable_tv,
 321 };
 322
 323 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
 324 {
 325         if (lcd_enabled) {
 326                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 327                 return -EINVAL;
 328         }
 329         dvi_enabled = 1;
 330
 331         return 0;
 332 }
 333
 334 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
 335 {
 336         dvi_enabled = 0;
 337 }
 338
 339 static struct panel_dvi_platform_data dvi_panel = {
 340         .platform_enable        = am3517_evm_panel_enable_dvi,
 341         .platform_disable       = am3517_evm_panel_disable_dvi,
 342 };
 343
 344 static struct omap_dss_device am3517_evm_dvi_device = {
 345         .type                   = OMAP_DISPLAY_TYPE_DPI,
 346         .name                   = "dvi",
 347         .driver_name            = "dvi",
 348         .data                   = &dvi_panel,
 349         .phy.dpi.data_lines     = 24,
 350 };
 351
 352 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 353         &am3517_evm_lcd_device,
 354         &am3517_evm_tv_device,
 355         &am3517_evm_dvi_device,
 356 };
 357
 358 static struct omap_dss_board_info am3517_evm_dss_data = {
 359         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 360         .devices        = am3517_evm_dss_devices,
 361         .default_device = &am3517_evm_lcd_device,
 362 };
 363
 364 /*
 365  * Board initialization
 366  */
 367
 368 static struct omap_musb_board_data musb_board_data = {
 369         .interface_type         = MUSB_INTERFACE_ULPI,
 370         .mode                   = MUSB_OTG,
 371         .power                  = 500,
 372         .set_phy_power          = am35x_musb_phy_power,
 373         .clear_irq              = am35x_musb_clear_irq,
 374         .set_mode               = am35x_set_mode,
 375         .reset                  = am35x_musb_reset,
 376 };
 377
 378 static __init void am3517_evm_musb_init(void)
 379 {
 380         u32 devconf2;
 381
 382         /*
 383          * Set up USB clock/mode in the DEVCONF2 register.
 384          */
 385         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
 386
 387         /* USB2.0 PHY reference clock is 13 MHz */
 388         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
 389         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
 390                         | CONF2_DATPOL;
 391
 392         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
 393
 394         usb_musb_init(&musb_board_data);
 395 }
 396
 397 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 398         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 399 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 400                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 401         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
 402 #else
 403         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 404 #endif
 405         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 406
 407         .phy_reset  = true,
 408         .reset_gpio_port[0]  = 57,
 409         .reset_gpio_port[1]  = -EINVAL,
 410         .reset_gpio_port[2]  = -EINVAL
 411 };
 412
 413 #ifdef CONFIG_OMAP_MUX
 414 static struct omap_board_mux board_mux[] __initdata = {
 415         /* USB OTG DRVVBUS offset = 0x212 */
 416         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
 417         { .reg_offset = OMAP_MUX_TERMINATOR },
 418 };
 419 #endif
 420
 421
 422 static struct resource am3517_hecc_resources[] = {
 423         {
 424                 .start  = AM35XX_IPSS_HECC_BASE,
 425                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 426                 .flags  = IORESOURCE_MEM,
 427         },
 428         {
 429                 .start  = INT_35XX_HECC0_IRQ,
 430                 .end    = INT_35XX_HECC0_IRQ,
 431                 .flags  = IORESOURCE_IRQ,
 432         },
 433 };
 434
 435 static struct platform_device am3517_hecc_device = {
 436         .name           = "ti_hecc",
 437         .id             = -1,
 438         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 439         .resource       = am3517_hecc_resources,
 440 };
 441
 442 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 443         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 444         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 445         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 446         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 447         .int_line               = AM35XX_HECC_INT_LINE,
 448         .version                = AM35XX_HECC_VERSION,
 449 };
 450
 451 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 452 {
 453         am3517_hecc_device.dev.platform_data = pdata;
 454         platform_device_register(&am3517_hecc_device);
 455 }
 456
 457 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 458 };
 459
 460 static struct omap2_hsmmc_info mmc[] = {
 461         {
 462                 .mmc            = 1,
 463                 .caps           = MMC_CAP_4_BIT_DATA,
 464                 .gpio_cd        = 127,
 465                 .gpio_wp        = 126,
 466         },
 467         {
 468                 .mmc            = 2,
 469                 .caps           = MMC_CAP_4_BIT_DATA,
 470                 .gpio_cd        = 128,
 471                 .gpio_wp        = 129,
 472         },
 473         {}      /* Terminator */
 474 };
 475
 476
 477 static void __init am3517_evm_init(void)
 478 {
 479         omap_board_config = am3517_evm_config;
 480         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
 481         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 482
 483         am3517_evm_i2c_init();
 484         omap_display_init(&am3517_evm_dss_data);
 485         omap_serial_init();
 486         omap_sdrc_init(NULL, NULL);
 487
 488         /* Configure GPIO for EHCI port */
 489         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 490         usbhs_init(&usbhs_bdata);
 491         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 492         /* DSS */
 493         am3517_evm_display_init();
 494
 495         /* RTC - S35390A */
 496         am3517_evm_rtc_init();
 497
 498         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 499                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 500         /*Ethernet*/
 501         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
 502
 503         /* MUSB */
 504         am3517_evm_musb_init();
 505
 506         /* MMC init function */
 507         omap2_hsmmc_init(mmc);
 508 }
 509
 510 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 511         .atag_offset    = 0x100,
 512         .reserve        = omap_reserve,
 513         .map_io         = omap3_map_io,
 514         .init_early     = am35xx_init_early,
 515         .init_irq       = omap3_init_irq,
 516         .handle_irq     = omap3_intc_handle_irq,
 517         .init_machine   = am3517_evm_init,
 518         .timer          = &omap3_timer,
 519         .restart        = omap_prcm_restart,
 520 MACHINE_END