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
  28 #include <mach/hardware.h>
  29 #include <mach/am35xx.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33
  34 #include <plat/board.h>
  35 #include <plat/common.h>
  36 #include <plat/usb.h>
  37 #include <plat/display.h>
  38 #include <plat/panel-generic-dpi.h>
  39
  40 #include "mux.h"
  41 #include "control.h"
  42
  43 #define AM35XX_EVM_MDIO_FREQUENCY       (1000000)
  44
  45 static struct mdio_platform_data am3517_evm_mdio_pdata = {
  46         .bus_freq       = AM35XX_EVM_MDIO_FREQUENCY,
  47 };
  48
  49 static struct resource am3517_mdio_resources[] = {
  50         {
  51                 .start  = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
  52                 .end    = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
  53                           SZ_4K - 1,
  54                 .flags  = IORESOURCE_MEM,
  55         },
  56 };
  57
  58 static struct platform_device am3517_mdio_device = {
  59         .name           = "davinci_mdio",
  60         .id             = 0,
  61         .num_resources  = ARRAY_SIZE(am3517_mdio_resources),
  62         .resource       = am3517_mdio_resources,
  63         .dev.platform_data = &am3517_evm_mdio_pdata,
  64 };
  65
  66 static struct emac_platform_data am3517_evm_emac_pdata = {
  67         .rmii_en        = 1,
  68 };
  69
  70 static struct resource am3517_emac_resources[] = {
  71         {
  72                 .start  = AM35XX_IPSS_EMAC_BASE,
  73                 .end    = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
  74                 .flags  = IORESOURCE_MEM,
  75         },
  76         {
  77                 .start  = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
  78                 .end    = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
  79                 .flags  = IORESOURCE_IRQ,
  80         },
  81         {
  82                 .start  = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
  83                 .end    = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
  84                 .flags  = IORESOURCE_IRQ,
  85         },
  86         {
  87                 .start  = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
  88                 .end    = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
  89                 .flags  = IORESOURCE_IRQ,
  90         },
  91         {
  92                 .start  = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
  93                 .end    = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
  94                 .flags  = IORESOURCE_IRQ,
  95         },
  96 };
  97
  98 static struct platform_device am3517_emac_device = {
  99         .name           = "davinci_emac",
 100         .id             = -1,
 101         .num_resources  = ARRAY_SIZE(am3517_emac_resources),
 102         .resource       = am3517_emac_resources,
 103 };
 104
 105 static void am3517_enable_ethernet_int(void)
 106 {
 107         u32 regval;
 108
 109         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 110         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
 111                 AM35XX_CPGMAC_C0_TX_PULSE_CLR |
 112                 AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
 113                 AM35XX_CPGMAC_C0_RX_THRESH_CLR);
 114         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
 115         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 116 }
 117
 118 static void am3517_disable_ethernet_int(void)
 119 {
 120         u32 regval;
 121
 122         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 123         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
 124                 AM35XX_CPGMAC_C0_TX_PULSE_CLR);
 125         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
 126         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 127 }
 128
 129 static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
 130 {
 131         unsigned int regval;
 132
 133         pdata->ctrl_reg_offset          = AM35XX_EMAC_CNTRL_OFFSET;
 134         pdata->ctrl_mod_reg_offset      = AM35XX_EMAC_CNTRL_MOD_OFFSET;
 135         pdata->ctrl_ram_offset          = AM35XX_EMAC_CNTRL_RAM_OFFSET;
 136         pdata->ctrl_ram_size            = AM35XX_EMAC_CNTRL_RAM_SIZE;
 137         pdata->version                  = EMAC_VERSION_2;
 138         pdata->hw_ram_addr              = AM35XX_EMAC_HW_RAM_ADDR;
 139         pdata->interrupt_enable         = am3517_enable_ethernet_int;
 140         pdata->interrupt_disable        = am3517_disable_ethernet_int;
 141         am3517_emac_device.dev.platform_data    = pdata;
 142         platform_device_register(&am3517_emac_device);
 143         platform_device_register(&am3517_mdio_device);
 144         clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
 145                       NULL, &am3517_emac_device.dev);
 146
 147         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 148         regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
 149         omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
 150         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 151
 152         return ;
 153 }
 154
 155
 156
 157 #define LCD_PANEL_PWR           176
 158 #define LCD_PANEL_BKLIGHT_PWR   182
 159 #define LCD_PANEL_PWM           181
 160
 161 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
 162         {
 163                 I2C_BOARD_INFO("s35390a", 0x30),
 164         },
 165 };
 166
 167 /*
 168  * RTC - S35390A
 169  */
 170 #define GPIO_RTCS35390A_IRQ     55
 171
 172 static void __init am3517_evm_rtc_init(void)
 173 {
 174         int r;
 175
 176         omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
 177         r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
 178         if (r < 0) {
 179                 printk(KERN_WARNING "failed to request GPIO#%d\n",
 180                                 GPIO_RTCS35390A_IRQ);
 181                 return;
 182         }
 183         r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
 184         if (r < 0) {
 185                 printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
 186                                 GPIO_RTCS35390A_IRQ);
 187                 gpio_free(GPIO_RTCS35390A_IRQ);
 188                 return;
 189         }
 190         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
 191 }
 192
 193 /*
 194  * I2C GPIO Expander - TCA6416
 195  */
 196
 197 /* Mounted on Base-Board */
 198 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
 199         .gpio_base      = OMAP_MAX_GPIO_LINES,
 200 };
 201 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
 202         {
 203                 I2C_BOARD_INFO("tca6416", 0x21),
 204                 .platform_data = &am3517evm_gpio_expander_info_0,
 205         },
 206 };
 207
 208 /* Mounted on UI Card */
 209 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
 210         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
 211 };
 212 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
 213         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
 214 };
 215 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
 216         {
 217                 I2C_BOARD_INFO("tca6416", 0x20),
 218                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
 219         },
 220         {
 221                 I2C_BOARD_INFO("tca6416", 0x21),
 222                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
 223         },
 224 };
 225
 226 static int __init am3517_evm_i2c_init(void)
 227 {
 228         omap_register_i2c_bus(1, 400, NULL, 0);
 229         omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
 230                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
 231         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
 232                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
 233
 234         return 0;
 235 }
 236
 237 static int lcd_enabled;
 238 static int dvi_enabled;
 239
 240 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 241                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 242 static void __init am3517_evm_display_init(void)
 243 {
 244         int r;
 245
 246         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 247         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 248         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 249         /*
 250          * Enable GPIO 182 = LCD Backlight Power
 251          */
 252         r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
 253         if (r) {
 254                 printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
 255                 return;
 256         }
 257         gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
 258         /*
 259          * Enable GPIO 181 = LCD Panel PWM
 260          */
 261         r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
 262         if (r) {
 263                 printk(KERN_ERR "failed to get lcd_pwm\n");
 264                 goto err_1;
 265         }
 266         gpio_direction_output(LCD_PANEL_PWM, 1);
 267         /*
 268          * Enable GPIO 176 = LCD Panel Power enable pin
 269          */
 270         r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
 271         if (r) {
 272                 printk(KERN_ERR "failed to get lcd_panel_pwr\n");
 273                 goto err_2;
 274         }
 275         gpio_direction_output(LCD_PANEL_PWR, 1);
 276
 277         printk(KERN_INFO "Display initialized successfully\n");
 278         return;
 279
 280 err_2:
 281         gpio_free(LCD_PANEL_PWM);
 282 err_1:
 283         gpio_free(LCD_PANEL_BKLIGHT_PWR);
 284 }
 285 #else
 286 static void __init am3517_evm_display_init(void) {}
 287 #endif
 288
 289 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 290 {
 291         if (dvi_enabled) {
 292                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 293                 return -EINVAL;
 294         }
 295         gpio_set_value(LCD_PANEL_PWR, 1);
 296         lcd_enabled = 1;
 297
 298         return 0;
 299 }
 300
 301 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 302 {
 303         gpio_set_value(LCD_PANEL_PWR, 0);
 304         lcd_enabled = 0;
 305 }
 306
 307 static struct panel_generic_dpi_data lcd_panel = {
 308         .name                   = "sharp_lq",
 309         .platform_enable        = am3517_evm_panel_enable_lcd,
 310         .platform_disable       = am3517_evm_panel_disable_lcd,
 311 };
 312
 313 static struct omap_dss_device am3517_evm_lcd_device = {
 314         .type                   = OMAP_DISPLAY_TYPE_DPI,
 315         .name                   = "lcd",
 316         .driver_name            = "generic_dpi_panel",
 317         .data                   = &lcd_panel,
 318         .phy.dpi.data_lines     = 16,
 319 };
 320
 321 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 322 {
 323         return 0;
 324 }
 325
 326 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 327 {
 328 }
 329
 330 static struct omap_dss_device am3517_evm_tv_device = {
 331         .type                   = OMAP_DISPLAY_TYPE_VENC,
 332         .name                   = "tv",
 333         .driver_name            = "venc",
 334         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 335         .platform_enable        = am3517_evm_panel_enable_tv,
 336         .platform_disable       = am3517_evm_panel_disable_tv,
 337 };
 338
 339 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
 340 {
 341         if (lcd_enabled) {
 342                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 343                 return -EINVAL;
 344         }
 345         dvi_enabled = 1;
 346
 347         return 0;
 348 }
 349
 350 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
 351 {
 352         dvi_enabled = 0;
 353 }
 354
 355 static struct panel_generic_dpi_data dvi_panel = {
 356         .name                   = "generic",
 357         .platform_enable        = am3517_evm_panel_enable_dvi,
 358         .platform_disable       = am3517_evm_panel_disable_dvi,
 359 };
 360
 361 static struct omap_dss_device am3517_evm_dvi_device = {
 362         .type                   = OMAP_DISPLAY_TYPE_DPI,
 363         .name                   = "dvi",
 364         .driver_name            = "generic_dpi_panel",
 365         .data                   = &dvi_panel,
 366         .phy.dpi.data_lines     = 24,
 367 };
 368
 369 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 370         &am3517_evm_lcd_device,
 371         &am3517_evm_tv_device,
 372         &am3517_evm_dvi_device,
 373 };
 374
 375 static struct omap_dss_board_info am3517_evm_dss_data = {
 376         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 377         .devices        = am3517_evm_dss_devices,
 378         .default_device = &am3517_evm_lcd_device,
 379 };
 380
 381 static struct platform_device am3517_evm_dss_device = {
 382         .name           = "omapdss",
 383         .id             = -1,
 384         .dev            = {
 385                 .platform_data  = &am3517_evm_dss_data,
 386         },
 387 };
 388
 389 /*
 390  * Board initialization
 391  */
 392 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 393 };
 394
 395 static struct platform_device *am3517_evm_devices[] __initdata = {
 396         &am3517_evm_dss_device,
 397 };
 398
 399 static void __init am3517_evm_init_irq(void)
 400 {
 401         omap_board_config = am3517_evm_config;
 402         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
 403         omap2_init_common_infrastructure();
 404         omap2_init_common_devices(NULL, NULL);
 405         omap_init_irq();
 406 }
 407
 408 static struct omap_musb_board_data musb_board_data = {
 409         .interface_type         = MUSB_INTERFACE_ULPI,
 410         .mode                   = MUSB_OTG,
 411         .power                  = 500,
 412 };
 413
 414 static __init void am3517_evm_musb_init(void)
 415 {
 416         u32 devconf2;
 417
 418         /*
 419          * Set up USB clock/mode in the DEVCONF2 register.
 420          */
 421         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
 422
 423         /* USB2.0 PHY reference clock is 13 MHz */
 424         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
 425         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
 426                         | CONF2_DATPOL;
 427
 428         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
 429
 430         usb_musb_init(&musb_board_data);
 431 }
 432
 433 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 434         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 435 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 436                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 437         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 438 #else
 439         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 440 #endif
 441         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 442
 443         .phy_reset  = true,
 444         .reset_gpio_port[0]  = 57,
 445         .reset_gpio_port[1]  = -EINVAL,
 446         .reset_gpio_port[2]  = -EINVAL
 447 };
 448
 449 #ifdef CONFIG_OMAP_MUX
 450 static struct omap_board_mux board_mux[] __initdata = {
 451         /* USB OTG DRVVBUS offset = 0x212 */
 452         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
 453         { .reg_offset = OMAP_MUX_TERMINATOR },
 454 };
 455 #endif
 456
 457
 458 static struct resource am3517_hecc_resources[] = {
 459         {
 460                 .start  = AM35XX_IPSS_HECC_BASE,
 461                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 462                 .flags  = IORESOURCE_MEM,
 463         },
 464         {
 465                 .start  = INT_35XX_HECC0_IRQ,
 466                 .end    = INT_35XX_HECC0_IRQ,
 467                 .flags  = IORESOURCE_IRQ,
 468         },
 469 };
 470
 471 static struct platform_device am3517_hecc_device = {
 472         .name           = "ti_hecc",
 473         .id             = -1,
 474         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 475         .resource       = am3517_hecc_resources,
 476 };
 477
 478 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 479         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 480         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 481         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 482         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 483         .int_line               = AM35XX_HECC_INT_LINE,
 484         .version                = AM35XX_HECC_VERSION,
 485 };
 486
 487 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 488 {
 489         am3517_hecc_device.dev.platform_data = pdata;
 490         platform_device_register(&am3517_hecc_device);
 491 }
 492
 493 static void __init am3517_evm_init(void)
 494 {
 495         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 496
 497         am3517_evm_i2c_init();
 498         platform_add_devices(am3517_evm_devices,
 499                                 ARRAY_SIZE(am3517_evm_devices));
 500
 501         omap_serial_init();
 502
 503         /* Configure GPIO for EHCI port */
 504         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 505         usb_ehci_init(&ehci_pdata);
 506         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 507         /* DSS */
 508         am3517_evm_display_init();
 509
 510         /* RTC - S35390A */
 511         am3517_evm_rtc_init();
 512
 513         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 514                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 515         /*Ethernet*/
 516         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
 517
 518         /* MUSB */
 519         am3517_evm_musb_init();
 520 }
 521
 522 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 523         .boot_params    = 0x80000100,
 524         .map_io         = omap3_map_io,
 525         .reserve        = omap_reserve,
 526         .init_irq       = am3517_evm_init_irq,
 527         .init_machine   = am3517_evm_init,
 528         .timer          = &omap_timer,
 529 MACHINE_END