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
  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
 178         r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
 179         if (r < 0) {
 180                 printk(KERN_WARNING "failed to request GPIO#%d\n",
 181                                 GPIO_RTCS35390A_IRQ);
 182                 return;
 183         }
 184
 185         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
 186 }
 187
 188 /*
 189  * I2C GPIO Expander - TCA6416
 190  */
 191
 192 /* Mounted on Base-Board */
 193 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
 194         .gpio_base      = OMAP_MAX_GPIO_LINES,
 195 };
 196 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
 197         {
 198                 I2C_BOARD_INFO("tlv320aic23", 0x1A),
 199         },
 200         {
 201                 I2C_BOARD_INFO("tca6416", 0x21),
 202                 .platform_data = &am3517evm_gpio_expander_info_0,
 203         },
 204 };
 205
 206 /* Mounted on UI Card */
 207 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
 208         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
 209 };
 210 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
 211         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
 212 };
 213 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
 214         {
 215                 I2C_BOARD_INFO("tca6416", 0x20),
 216                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
 217         },
 218         {
 219                 I2C_BOARD_INFO("tca6416", 0x21),
 220                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
 221         },
 222 };
 223
 224 static int __init am3517_evm_i2c_init(void)
 225 {
 226         omap_register_i2c_bus(1, 400, NULL, 0);
 227         omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
 228                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
 229         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
 230                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
 231
 232         return 0;
 233 }
 234
 235 static int lcd_enabled;
 236 static int dvi_enabled;
 237
 238 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 239                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 240 static struct gpio am3517_evm_dss_gpios[] __initdata = {
 241         /* GPIO 182 = LCD Backlight Power */
 242         { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
 243         /* GPIO 181 = LCD Panel PWM */
 244         { LCD_PANEL_PWM,         GPIOF_OUT_INIT_HIGH, "lcd bl enable"     },
 245         /* GPIO 176 = LCD Panel Power enable pin */
 246         { LCD_PANEL_PWR,         GPIOF_OUT_INIT_HIGH, "dvi enable"        },
 247 };
 248
 249 static void __init am3517_evm_display_init(void)
 250 {
 251         int r;
 252
 253         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 254         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 255         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 256
 257         r = gpio_request_array(am3517_evm_dss_gpios,
 258                                ARRAY_SIZE(am3517_evm_dss_gpios));
 259         if (r) {
 260                 printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
 261                 return;
 262         }
 263
 264         printk(KERN_INFO "Display initialized successfully\n");
 265 }
 266 #else
 267 static void __init am3517_evm_display_init(void) {}
 268 #endif
 269
 270 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 271 {
 272         if (dvi_enabled) {
 273                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 274                 return -EINVAL;
 275         }
 276         gpio_set_value(LCD_PANEL_PWR, 1);
 277         lcd_enabled = 1;
 278
 279         return 0;
 280 }
 281
 282 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 283 {
 284         gpio_set_value(LCD_PANEL_PWR, 0);
 285         lcd_enabled = 0;
 286 }
 287
 288 static struct panel_generic_dpi_data lcd_panel = {
 289         .name                   = "sharp_lq",
 290         .platform_enable        = am3517_evm_panel_enable_lcd,
 291         .platform_disable       = am3517_evm_panel_disable_lcd,
 292 };
 293
 294 static struct omap_dss_device am3517_evm_lcd_device = {
 295         .type                   = OMAP_DISPLAY_TYPE_DPI,
 296         .name                   = "lcd",
 297         .driver_name            = "generic_dpi_panel",
 298         .data                   = &lcd_panel,
 299         .phy.dpi.data_lines     = 16,
 300 };
 301
 302 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 303 {
 304         return 0;
 305 }
 306
 307 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 308 {
 309 }
 310
 311 static struct omap_dss_device am3517_evm_tv_device = {
 312         .type                   = OMAP_DISPLAY_TYPE_VENC,
 313         .name                   = "tv",
 314         .driver_name            = "venc",
 315         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 316         .platform_enable        = am3517_evm_panel_enable_tv,
 317         .platform_disable       = am3517_evm_panel_disable_tv,
 318 };
 319
 320 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
 321 {
 322         if (lcd_enabled) {
 323                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 324                 return -EINVAL;
 325         }
 326         dvi_enabled = 1;
 327
 328         return 0;
 329 }
 330
 331 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
 332 {
 333         dvi_enabled = 0;
 334 }
 335
 336 static struct panel_generic_dpi_data dvi_panel = {
 337         .name                   = "generic",
 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            = "generic_dpi_panel",
 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 static void __init am3517_evm_init_early(void)
 366 {
 367         omap2_init_common_infrastructure();
 368         omap2_init_common_devices(NULL, NULL);
 369 }
 370
 371 static struct omap_musb_board_data musb_board_data = {
 372         .interface_type         = MUSB_INTERFACE_ULPI,
 373         .mode                   = MUSB_OTG,
 374         .power                  = 500,
 375         .set_phy_power          = am35x_musb_phy_power,
 376         .clear_irq              = am35x_musb_clear_irq,
 377         .set_mode               = am35x_set_mode,
 378         .reset                  = am35x_musb_reset,
 379 };
 380
 381 static __init void am3517_evm_musb_init(void)
 382 {
 383         u32 devconf2;
 384
 385         /*
 386          * Set up USB clock/mode in the DEVCONF2 register.
 387          */
 388         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
 389
 390         /* USB2.0 PHY reference clock is 13 MHz */
 391         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
 392         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
 393                         | CONF2_DATPOL;
 394
 395         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
 396
 397         usb_musb_init(&musb_board_data);
 398 }
 399
 400 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 401         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 402 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 403                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 404         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
 405 #else
 406         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 407 #endif
 408         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 409
 410         .phy_reset  = true,
 411         .reset_gpio_port[0]  = 57,
 412         .reset_gpio_port[1]  = -EINVAL,
 413         .reset_gpio_port[2]  = -EINVAL
 414 };
 415
 416 #ifdef CONFIG_OMAP_MUX
 417 static struct omap_board_mux board_mux[] __initdata = {
 418         /* USB OTG DRVVBUS offset = 0x212 */
 419         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
 420         { .reg_offset = OMAP_MUX_TERMINATOR },
 421 };
 422 #endif
 423
 424
 425 static struct resource am3517_hecc_resources[] = {
 426         {
 427                 .start  = AM35XX_IPSS_HECC_BASE,
 428                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 429                 .flags  = IORESOURCE_MEM,
 430         },
 431         {
 432                 .start  = INT_35XX_HECC0_IRQ,
 433                 .end    = INT_35XX_HECC0_IRQ,
 434                 .flags  = IORESOURCE_IRQ,
 435         },
 436 };
 437
 438 static struct platform_device am3517_hecc_device = {
 439         .name           = "ti_hecc",
 440         .id             = -1,
 441         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 442         .resource       = am3517_hecc_resources,
 443 };
 444
 445 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 446         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 447         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 448         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 449         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 450         .int_line               = AM35XX_HECC_INT_LINE,
 451         .version                = AM35XX_HECC_VERSION,
 452 };
 453
 454 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 455 {
 456         am3517_hecc_device.dev.platform_data = pdata;
 457         platform_device_register(&am3517_hecc_device);
 458 }
 459
 460 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 461 };
 462
 463 static void __init am3517_evm_init(void)
 464 {
 465         omap_board_config = am3517_evm_config;
 466         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
 467         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 468
 469         am3517_evm_i2c_init();
 470         omap_display_init(&am3517_evm_dss_data);
 471         omap_serial_init();
 472
 473         /* Configure GPIO for EHCI port */
 474         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 475         usbhs_init(&usbhs_bdata);
 476         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 477         /* DSS */
 478         am3517_evm_display_init();
 479
 480         /* RTC - S35390A */
 481         am3517_evm_rtc_init();
 482
 483         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 484                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 485         /*Ethernet*/
 486         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
 487
 488         /* MUSB */
 489         am3517_evm_musb_init();
 490 }
 491
 492 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 493         .boot_params    = 0x80000100,
 494         .reserve        = omap_reserve,
 495         .map_io         = omap3_map_io,
 496         .init_early     = am3517_evm_init_early,
 497         .init_irq       = omap_init_irq,
 498         .init_machine   = am3517_evm_init,
 499         .timer          = &omap_timer,
 500 MACHINE_END