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/control.h>
  37 #include <plat/usb.h>
  38 #include <plat/display.h>
  39
  40 #include "mux.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 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                 .type           = "s35390a",
 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 omap_dss_device am3517_evm_lcd_device = {
 308         .type                   = OMAP_DISPLAY_TYPE_DPI,
 309         .name                   = "lcd",
 310         .driver_name            = "sharp_lq_panel",
 311         .phy.dpi.data_lines     = 16,
 312         .platform_enable        = am3517_evm_panel_enable_lcd,
 313         .platform_disable       = am3517_evm_panel_disable_lcd,
 314 };
 315
 316 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 317 {
 318         return 0;
 319 }
 320
 321 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 322 {
 323 }
 324
 325 static struct omap_dss_device am3517_evm_tv_device = {
 326         .type                   = OMAP_DISPLAY_TYPE_VENC,
 327         .name                   = "tv",
 328         .driver_name            = "venc",
 329         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 330         .platform_enable        = am3517_evm_panel_enable_tv,
 331         .platform_disable       = am3517_evm_panel_disable_tv,
 332 };
 333
 334 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
 335 {
 336         if (lcd_enabled) {
 337                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 338                 return -EINVAL;
 339         }
 340         dvi_enabled = 1;
 341
 342         return 0;
 343 }
 344
 345 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
 346 {
 347         dvi_enabled = 0;
 348 }
 349
 350 static struct omap_dss_device am3517_evm_dvi_device = {
 351         .type                   = OMAP_DISPLAY_TYPE_DPI,
 352         .name                   = "dvi",
 353         .driver_name            = "generic_panel",
 354         .phy.dpi.data_lines     = 24,
 355         .platform_enable        = am3517_evm_panel_enable_dvi,
 356         .platform_disable       = am3517_evm_panel_disable_dvi,
 357 };
 358
 359 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 360         &am3517_evm_lcd_device,
 361         &am3517_evm_tv_device,
 362         &am3517_evm_dvi_device,
 363 };
 364
 365 static struct omap_dss_board_info am3517_evm_dss_data = {
 366         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 367         .devices        = am3517_evm_dss_devices,
 368         .default_device = &am3517_evm_lcd_device,
 369 };
 370
 371 struct platform_device am3517_evm_dss_device = {
 372         .name           = "omapdss",
 373         .id             = -1,
 374         .dev            = {
 375                 .platform_data  = &am3517_evm_dss_data,
 376         },
 377 };
 378
 379 /*
 380  * Board initialization
 381  */
 382 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 383 };
 384
 385 static struct platform_device *am3517_evm_devices[] __initdata = {
 386         &am3517_evm_dss_device,
 387 };
 388
 389 static void __init am3517_evm_init_irq(void)
 390 {
 391         omap_board_config = am3517_evm_config;
 392         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
 393
 394         omap2_init_common_hw(NULL, NULL);
 395         omap_init_irq();
 396         omap_gpio_init();
 397 }
 398
 399 static struct omap_musb_board_data musb_board_data = {
 400         .interface_type         = MUSB_INTERFACE_ULPI,
 401         .mode                   = MUSB_OTG,
 402         .power                  = 500,
 403 };
 404
 405 static __init void am3517_evm_musb_init(void)
 406 {
 407         u32 devconf2;
 408
 409         /*
 410          * Set up USB clock/mode in the DEVCONF2 register.
 411          */
 412         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
 413
 414         /* USB2.0 PHY reference clock is 13 MHz */
 415         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
 416         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
 417                         | CONF2_DATPOL;
 418
 419         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
 420
 421         usb_musb_init(&musb_board_data);
 422 }
 423
 424 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 425         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 426 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 427                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 428         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 429 #else
 430         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 431 #endif
 432         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 433
 434         .phy_reset  = true,
 435         .reset_gpio_port[0]  = 57,
 436         .reset_gpio_port[1]  = -EINVAL,
 437         .reset_gpio_port[2]  = -EINVAL
 438 };
 439
 440 #ifdef CONFIG_OMAP_MUX
 441 static struct omap_board_mux board_mux[] __initdata = {
 442         /* USB OTG DRVVBUS offset = 0x212 */
 443         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
 444         { .reg_offset = OMAP_MUX_TERMINATOR },
 445 };
 446 #else
 447 #define board_mux       NULL
 448 #endif
 449
 450
 451 static struct resource am3517_hecc_resources[] = {
 452         {
 453                 .start  = AM35XX_IPSS_HECC_BASE,
 454                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 455                 .flags  = IORESOURCE_MEM,
 456         },
 457         {
 458                 .start  = INT_35XX_HECC0_IRQ,
 459                 .end    = INT_35XX_HECC0_IRQ,
 460                 .flags  = IORESOURCE_IRQ,
 461         },
 462 };
 463
 464 static struct platform_device am3517_hecc_device = {
 465         .name           = "ti_hecc",
 466         .id             = -1,
 467         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 468         .resource       = am3517_hecc_resources,
 469 };
 470
 471 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 472         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 473         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 474         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 475         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 476         .int_line               = AM35XX_HECC_INT_LINE,
 477         .version                = AM35XX_HECC_VERSION,
 478 };
 479
 480 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 481 {
 482         am3517_hecc_device.dev.platform_data = pdata;
 483         platform_device_register(&am3517_hecc_device);
 484 }
 485
 486 static void __init am3517_evm_init(void)
 487 {
 488         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 489
 490         am3517_evm_i2c_init();
 491         platform_add_devices(am3517_evm_devices,
 492                                 ARRAY_SIZE(am3517_evm_devices));
 493
 494         omap_serial_init();
 495
 496         /* Configure GPIO for EHCI port */
 497         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 498         usb_ehci_init(&ehci_pdata);
 499         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 500         /* DSS */
 501         am3517_evm_display_init();
 502
 503         /* RTC - S35390A */
 504         am3517_evm_rtc_init();
 505
 506         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 507                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 508         /*Ethernet*/
 509         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
 510
 511         /* MUSB */
 512         am3517_evm_musb_init();
 513 }
 514
 515 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 516         .boot_params    = 0x80000100,
 517         .map_io         = omap3_map_io,
 518         .reserve        = omap_reserve,
 519         .init_irq       = am3517_evm_init_irq,
 520         .init_machine   = am3517_evm_init,
 521         .timer          = &omap_timer,
 522 MACHINE_END