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 <video/omapdss.h>
  38 #include <video/omap-panel-generic-dpi.h>
  39 #include <video/omap-panel-dvi.h>
  40
  41 #include "mux.h"
  42 #include "control.h"
  43
  44 #define AM35XX_EVM_MDIO_FREQUENCY       (1000000)
  45
  46 static struct mdio_platform_data am3517_evm_mdio_pdata = {
  47         .bus_freq       = AM35XX_EVM_MDIO_FREQUENCY,
  48 };
  49
  50 static struct resource am3517_mdio_resources[] = {
  51         {
  52                 .start  = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
  53                 .end    = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
  54                           SZ_4K - 1,
  55                 .flags  = IORESOURCE_MEM,
  56         },
  57 };
  58
  59 static struct platform_device am3517_mdio_device = {
  60         .name           = "davinci_mdio",
  61         .id             = 0,
  62         .num_resources  = ARRAY_SIZE(am3517_mdio_resources),
  63         .resource       = am3517_mdio_resources,
  64         .dev.platform_data = &am3517_evm_mdio_pdata,
  65 };
  66
  67 static struct emac_platform_data am3517_evm_emac_pdata = {
  68         .rmii_en        = 1,
  69 };
  70
  71 static struct resource am3517_emac_resources[] = {
  72         {
  73                 .start  = AM35XX_IPSS_EMAC_BASE,
  74                 .end    = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
  75                 .flags  = IORESOURCE_MEM,
  76         },
  77         {
  78                 .start  = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
  79                 .end    = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
  80                 .flags  = IORESOURCE_IRQ,
  81         },
  82         {
  83                 .start  = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
  84                 .end    = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
  85                 .flags  = IORESOURCE_IRQ,
  86         },
  87         {
  88                 .start  = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
  89                 .end    = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
  90                 .flags  = IORESOURCE_IRQ,
  91         },
  92         {
  93                 .start  = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
  94                 .end    = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
  95                 .flags  = IORESOURCE_IRQ,
  96         },
  97 };
  98
  99 static struct platform_device am3517_emac_device = {
 100         .name           = "davinci_emac",
 101         .id             = -1,
 102         .num_resources  = ARRAY_SIZE(am3517_emac_resources),
 103         .resource       = am3517_emac_resources,
 104 };
 105
 106 static void am3517_enable_ethernet_int(void)
 107 {
 108         u32 regval;
 109
 110         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 111         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
 112                 AM35XX_CPGMAC_C0_TX_PULSE_CLR |
 113                 AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
 114                 AM35XX_CPGMAC_C0_RX_THRESH_CLR);
 115         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
 116         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 117 }
 118
 119 static void am3517_disable_ethernet_int(void)
 120 {
 121         u32 regval;
 122
 123         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 124         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
 125                 AM35XX_CPGMAC_C0_TX_PULSE_CLR);
 126         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
 127         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 128 }
 129
 130 static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
 131 {
 132         unsigned int regval;
 133
 134         pdata->ctrl_reg_offset          = AM35XX_EMAC_CNTRL_OFFSET;
 135         pdata->ctrl_mod_reg_offset      = AM35XX_EMAC_CNTRL_MOD_OFFSET;
 136         pdata->ctrl_ram_offset          = AM35XX_EMAC_CNTRL_RAM_OFFSET;
 137         pdata->ctrl_ram_size            = AM35XX_EMAC_CNTRL_RAM_SIZE;
 138         pdata->version                  = EMAC_VERSION_2;
 139         pdata->hw_ram_addr              = AM35XX_EMAC_HW_RAM_ADDR;
 140         pdata->interrupt_enable         = am3517_enable_ethernet_int;
 141         pdata->interrupt_disable        = am3517_disable_ethernet_int;
 142         am3517_emac_device.dev.platform_data    = pdata;
 143         platform_device_register(&am3517_emac_device);
 144         platform_device_register(&am3517_mdio_device);
 145         clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
 146                       NULL, &am3517_emac_device.dev);
 147
 148         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 149         regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
 150         omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
 151         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 152
 153         return ;
 154 }
 155
 156
 157
 158 #define LCD_PANEL_PWR           176
 159 #define LCD_PANEL_BKLIGHT_PWR   182
 160 #define LCD_PANEL_PWM           181
 161
 162 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
 163         {
 164                 I2C_BOARD_INFO("s35390a", 0x30),
 165         },
 166 };
 167
 168 /*
 169  * RTC - S35390A
 170  */
 171 #define GPIO_RTCS35390A_IRQ     55
 172
 173 static void __init am3517_evm_rtc_init(void)
 174 {
 175         int r;
 176
 177         omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
 178
 179         r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
 180         if (r < 0) {
 181                 printk(KERN_WARNING "failed to request GPIO#%d\n",
 182                                 GPIO_RTCS35390A_IRQ);
 183                 return;
 184         }
 185
 186         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
 187 }
 188
 189 /*
 190  * I2C GPIO Expander - TCA6416
 191  */
 192
 193 /* Mounted on Base-Board */
 194 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
 195         .gpio_base      = OMAP_MAX_GPIO_LINES,
 196 };
 197 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
 198         {
 199                 I2C_BOARD_INFO("tlv320aic23", 0x1A),
 200         },
 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 struct gpio am3517_evm_dss_gpios[] __initdata = {
 242         /* GPIO 182 = LCD Backlight Power */
 243         { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
 244         /* GPIO 181 = LCD Panel PWM */
 245         { LCD_PANEL_PWM,         GPIOF_OUT_INIT_HIGH, "lcd bl enable"     },
 246         /* GPIO 176 = LCD Panel Power enable pin */
 247         { LCD_PANEL_PWR,         GPIOF_OUT_INIT_HIGH, "dvi enable"        },
 248 };
 249
 250 static void __init am3517_evm_display_init(void)
 251 {
 252         int r;
 253
 254         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 255         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 256         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 257
 258         r = gpio_request_array(am3517_evm_dss_gpios,
 259                                ARRAY_SIZE(am3517_evm_dss_gpios));
 260         if (r) {
 261                 printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
 262                 return;
 263         }
 264
 265         printk(KERN_INFO "Display initialized successfully\n");
 266 }
 267 #else
 268 static void __init am3517_evm_display_init(void) {}
 269 #endif
 270
 271 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 272 {
 273         if (dvi_enabled) {
 274                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 275                 return -EINVAL;
 276         }
 277         gpio_set_value(LCD_PANEL_PWR, 1);
 278         lcd_enabled = 1;
 279
 280         return 0;
 281 }
 282
 283 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 284 {
 285         gpio_set_value(LCD_PANEL_PWR, 0);
 286         lcd_enabled = 0;
 287 }
 288
 289 static struct panel_generic_dpi_data lcd_panel = {
 290         .name                   = "sharp_lq",
 291         .platform_enable        = am3517_evm_panel_enable_lcd,
 292         .platform_disable       = am3517_evm_panel_disable_lcd,
 293 };
 294
 295 static struct omap_dss_device am3517_evm_lcd_device = {
 296         .type                   = OMAP_DISPLAY_TYPE_DPI,
 297         .name                   = "lcd",
 298         .driver_name            = "generic_dpi_panel",
 299         .data                   = &lcd_panel,
 300         .phy.dpi.data_lines     = 16,
 301 };
 302
 303 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 304 {
 305         return 0;
 306 }
 307
 308 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 309 {
 310 }
 311
 312 static struct omap_dss_device am3517_evm_tv_device = {
 313         .type                   = OMAP_DISPLAY_TYPE_VENC,
 314         .name                   = "tv",
 315         .driver_name            = "venc",
 316         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 317         .platform_enable        = am3517_evm_panel_enable_tv,
 318         .platform_disable       = am3517_evm_panel_disable_tv,
 319 };
 320
 321 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
 322 {
 323         if (lcd_enabled) {
 324                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 325                 return -EINVAL;
 326         }
 327         dvi_enabled = 1;
 328
 329         return 0;
 330 }
 331
 332 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
 333 {
 334         dvi_enabled = 0;
 335 }
 336
 337 static struct panel_dvi_platform_data dvi_panel = {
 338         .platform_enable        = am3517_evm_panel_enable_dvi,
 339         .platform_disable       = am3517_evm_panel_disable_dvi,
 340 };
 341
 342 static struct omap_dss_device am3517_evm_dvi_device = {
 343         .type                   = OMAP_DISPLAY_TYPE_DPI,
 344         .name                   = "dvi",
 345         .driver_name            = "dvi",
 346         .data                   = &dvi_panel,
 347         .phy.dpi.data_lines     = 24,
 348 };
 349
 350 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 351         &am3517_evm_lcd_device,
 352         &am3517_evm_tv_device,
 353         &am3517_evm_dvi_device,
 354 };
 355
 356 static struct omap_dss_board_info am3517_evm_dss_data = {
 357         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 358         .devices        = am3517_evm_dss_devices,
 359         .default_device = &am3517_evm_lcd_device,
 360 };
 361
 362 /*
 363  * Board initialization
 364  */
 365
 366 static struct omap_musb_board_data musb_board_data = {
 367         .interface_type         = MUSB_INTERFACE_ULPI,
 368         .mode                   = MUSB_OTG,
 369         .power                  = 500,
 370         .set_phy_power          = am35x_musb_phy_power,
 371         .clear_irq              = am35x_musb_clear_irq,
 372         .set_mode               = am35x_set_mode,
 373         .reset                  = am35x_musb_reset,
 374 };
 375
 376 static __init void am3517_evm_musb_init(void)
 377 {
 378         u32 devconf2;
 379
 380         /*
 381          * Set up USB clock/mode in the DEVCONF2 register.
 382          */
 383         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
 384
 385         /* USB2.0 PHY reference clock is 13 MHz */
 386         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
 387         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
 388                         | CONF2_DATPOL;
 389
 390         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
 391
 392         usb_musb_init(&musb_board_data);
 393 }
 394
 395 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 396         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 397 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 398                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 399         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
 400 #else
 401         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 402 #endif
 403         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 404
 405         .phy_reset  = true,
 406         .reset_gpio_port[0]  = 57,
 407         .reset_gpio_port[1]  = -EINVAL,
 408         .reset_gpio_port[2]  = -EINVAL
 409 };
 410
 411 #ifdef CONFIG_OMAP_MUX
 412 static struct omap_board_mux board_mux[] __initdata = {
 413         /* USB OTG DRVVBUS offset = 0x212 */
 414         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
 415         { .reg_offset = OMAP_MUX_TERMINATOR },
 416 };
 417 #endif
 418
 419
 420 static struct resource am3517_hecc_resources[] = {
 421         {
 422                 .start  = AM35XX_IPSS_HECC_BASE,
 423                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 424                 .flags  = IORESOURCE_MEM,
 425         },
 426         {
 427                 .start  = INT_35XX_HECC0_IRQ,
 428                 .end    = INT_35XX_HECC0_IRQ,
 429                 .flags  = IORESOURCE_IRQ,
 430         },
 431 };
 432
 433 static struct platform_device am3517_hecc_device = {
 434         .name           = "ti_hecc",
 435         .id             = -1,
 436         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 437         .resource       = am3517_hecc_resources,
 438 };
 439
 440 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 441         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 442         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 443         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 444         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 445         .int_line               = AM35XX_HECC_INT_LINE,
 446         .version                = AM35XX_HECC_VERSION,
 447 };
 448
 449 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 450 {
 451         am3517_hecc_device.dev.platform_data = pdata;
 452         platform_device_register(&am3517_hecc_device);
 453 }
 454
 455 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 456 };
 457
 458 static void __init am3517_evm_init(void)
 459 {
 460         omap_board_config = am3517_evm_config;
 461         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
 462         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 463
 464         am3517_evm_i2c_init();
 465         omap_display_init(&am3517_evm_dss_data);
 466         omap_serial_init();
 467         omap_sdrc_init(NULL, NULL);
 468
 469         /* Configure GPIO for EHCI port */
 470         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 471         usbhs_init(&usbhs_bdata);
 472         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 473         /* DSS */
 474         am3517_evm_display_init();
 475
 476         /* RTC - S35390A */
 477         am3517_evm_rtc_init();
 478
 479         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 480                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 481         /*Ethernet*/
 482         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
 483
 484         /* MUSB */
 485         am3517_evm_musb_init();
 486 }
 487
 488 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 489         .atag_offset    = 0x100,
 490         .reserve        = omap_reserve,
 491         .map_io         = omap3_map_io,
 492         .init_early     = am35xx_init_early,
 493         .init_irq       = omap3_init_irq,
 494         .init_machine   = am3517_evm_init,
 495         .timer          = &omap3_timer,
 496 MACHINE_END