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