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 #include <linux/mmc/host.h>
  28
  29 #include <mach/hardware.h>
  30 #include <mach/am35xx.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <plat/board.h>
  36 #include "common.h"
  37 #include <plat/usb.h>
  38 #include <video/omapdss.h>
  39 #include <video/omap-panel-generic-dpi.h>
  40 #include <video/omap-panel-dvi.h>
  41
  42 #include "am35xx-emac.h"
  43 #include "mux.h"
  44 #include "control.h"
  45 #include "hsmmc.h"
  46
  47 #define LCD_PANEL_PWR           176
  48 #define LCD_PANEL_BKLIGHT_PWR   182
  49 #define LCD_PANEL_PWM           181
  50
  51 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
  52         {
  53                 I2C_BOARD_INFO("s35390a", 0x30),
  54         },
  55 };
  56
  57 /*
  58  * RTC - S35390A
  59  */
  60 #define GPIO_RTCS35390A_IRQ     55
  61
  62 static void __init am3517_evm_rtc_init(void)
  63 {
  64         int r;
  65
  66         omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
  67
  68         r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
  69         if (r < 0) {
  70                 printk(KERN_WARNING "failed to request GPIO#%d\n",
  71                                 GPIO_RTCS35390A_IRQ);
  72                 return;
  73         }
  74
  75         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
  76 }
  77
  78 /*
  79  * I2C GPIO Expander - TCA6416
  80  */
  81
  82 /* Mounted on Base-Board */
  83 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
  84         .gpio_base      = OMAP_MAX_GPIO_LINES,
  85 };
  86 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
  87         {
  88                 I2C_BOARD_INFO("tlv320aic23", 0x1A),
  89         },
  90         {
  91                 I2C_BOARD_INFO("tca6416", 0x21),
  92                 .platform_data = &am3517evm_gpio_expander_info_0,
  93         },
  94 };
  95
  96 /* Mounted on UI Card */
  97 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
  98         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
  99 };
 100 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
 101         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
 102 };
 103 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
 104         {
 105                 I2C_BOARD_INFO("tca6416", 0x20),
 106                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
 107         },
 108         {
 109                 I2C_BOARD_INFO("tca6416", 0x21),
 110                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
 111         },
 112 };
 113
 114 static int __init am3517_evm_i2c_init(void)
 115 {
 116         omap_register_i2c_bus(1, 400, NULL, 0);
 117         omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
 118                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
 119         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
 120                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
 121
 122         return 0;
 123 }
 124
 125 static int lcd_enabled;
 126 static int dvi_enabled;
 127
 128 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 129                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 130 static struct gpio am3517_evm_dss_gpios[] __initdata = {
 131         /* GPIO 182 = LCD Backlight Power */
 132         { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
 133         /* GPIO 181 = LCD Panel PWM */
 134         { LCD_PANEL_PWM,         GPIOF_OUT_INIT_HIGH, "lcd bl enable"     },
 135         /* GPIO 176 = LCD Panel Power enable pin */
 136         { LCD_PANEL_PWR,         GPIOF_OUT_INIT_HIGH, "dvi enable"        },
 137 };
 138
 139 static void __init am3517_evm_display_init(void)
 140 {
 141         int r;
 142
 143         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 144         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 145         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 146
 147         r = gpio_request_array(am3517_evm_dss_gpios,
 148                                ARRAY_SIZE(am3517_evm_dss_gpios));
 149         if (r) {
 150                 printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
 151                 return;
 152         }
 153
 154         printk(KERN_INFO "Display initialized successfully\n");
 155 }
 156 #else
 157 static void __init am3517_evm_display_init(void) {}
 158 #endif
 159
 160 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 161 {
 162         if (dvi_enabled) {
 163                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 164                 return -EINVAL;
 165         }
 166         gpio_set_value(LCD_PANEL_PWR, 1);
 167         lcd_enabled = 1;
 168
 169         return 0;
 170 }
 171
 172 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 173 {
 174         gpio_set_value(LCD_PANEL_PWR, 0);
 175         lcd_enabled = 0;
 176 }
 177
 178 static struct panel_generic_dpi_data lcd_panel = {
 179         .name                   = "sharp_lq",
 180         .platform_enable        = am3517_evm_panel_enable_lcd,
 181         .platform_disable       = am3517_evm_panel_disable_lcd,
 182 };
 183
 184 static struct omap_dss_device am3517_evm_lcd_device = {
 185         .type                   = OMAP_DISPLAY_TYPE_DPI,
 186         .name                   = "lcd",
 187         .driver_name            = "generic_dpi_panel",
 188         .data                   = &lcd_panel,
 189         .phy.dpi.data_lines     = 16,
 190 };
 191
 192 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 193 {
 194         return 0;
 195 }
 196
 197 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 198 {
 199 }
 200
 201 static struct omap_dss_device am3517_evm_tv_device = {
 202         .type                   = OMAP_DISPLAY_TYPE_VENC,
 203         .name                   = "tv",
 204         .driver_name            = "venc",
 205         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 206         .platform_enable        = am3517_evm_panel_enable_tv,
 207         .platform_disable       = am3517_evm_panel_disable_tv,
 208 };
 209
 210 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
 211 {
 212         if (lcd_enabled) {
 213                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 214                 return -EINVAL;
 215         }
 216         dvi_enabled = 1;
 217
 218         return 0;
 219 }
 220
 221 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
 222 {
 223         dvi_enabled = 0;
 224 }
 225
 226 static struct panel_dvi_platform_data dvi_panel = {
 227         .platform_enable        = am3517_evm_panel_enable_dvi,
 228         .platform_disable       = am3517_evm_panel_disable_dvi,
 229 };
 230
 231 static struct omap_dss_device am3517_evm_dvi_device = {
 232         .type                   = OMAP_DISPLAY_TYPE_DPI,
 233         .name                   = "dvi",
 234         .driver_name            = "dvi",
 235         .data                   = &dvi_panel,
 236         .phy.dpi.data_lines     = 24,
 237 };
 238
 239 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 240         &am3517_evm_lcd_device,
 241         &am3517_evm_tv_device,
 242         &am3517_evm_dvi_device,
 243 };
 244
 245 static struct omap_dss_board_info am3517_evm_dss_data = {
 246         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 247         .devices        = am3517_evm_dss_devices,
 248         .default_device = &am3517_evm_lcd_device,
 249 };
 250
 251 /*
 252  * Board initialization
 253  */
 254
 255 static struct omap_musb_board_data musb_board_data = {
 256         .interface_type         = MUSB_INTERFACE_ULPI,
 257         .mode                   = MUSB_OTG,
 258         .power                  = 500,
 259         .set_phy_power          = am35x_musb_phy_power,
 260         .clear_irq              = am35x_musb_clear_irq,
 261         .set_mode               = am35x_set_mode,
 262         .reset                  = am35x_musb_reset,
 263 };
 264
 265 static __init void am3517_evm_musb_init(void)
 266 {
 267         u32 devconf2;
 268
 269         /*
 270          * Set up USB clock/mode in the DEVCONF2 register.
 271          */
 272         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
 273
 274         /* USB2.0 PHY reference clock is 13 MHz */
 275         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
 276         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
 277                         | CONF2_DATPOL;
 278
 279         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
 280
 281         usb_musb_init(&musb_board_data);
 282 }
 283
 284 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 285         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 286 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 287                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 288         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
 289 #else
 290         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 291 #endif
 292         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 293
 294         .phy_reset  = true,
 295         .reset_gpio_port[0]  = 57,
 296         .reset_gpio_port[1]  = -EINVAL,
 297         .reset_gpio_port[2]  = -EINVAL
 298 };
 299
 300 #ifdef CONFIG_OMAP_MUX
 301 static struct omap_board_mux board_mux[] __initdata = {
 302         /* USB OTG DRVVBUS offset = 0x212 */
 303         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
 304         { .reg_offset = OMAP_MUX_TERMINATOR },
 305 };
 306 #endif
 307
 308
 309 static struct resource am3517_hecc_resources[] = {
 310         {
 311                 .start  = AM35XX_IPSS_HECC_BASE,
 312                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 313                 .flags  = IORESOURCE_MEM,
 314         },
 315         {
 316                 .start  = INT_35XX_HECC0_IRQ,
 317                 .end    = INT_35XX_HECC0_IRQ,
 318                 .flags  = IORESOURCE_IRQ,
 319         },
 320 };
 321
 322 static struct platform_device am3517_hecc_device = {
 323         .name           = "ti_hecc",
 324         .id             = -1,
 325         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 326         .resource       = am3517_hecc_resources,
 327 };
 328
 329 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 330         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 331         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 332         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 333         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 334         .int_line               = AM35XX_HECC_INT_LINE,
 335         .version                = AM35XX_HECC_VERSION,
 336 };
 337
 338 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 339 {
 340         am3517_hecc_device.dev.platform_data = pdata;
 341         platform_device_register(&am3517_hecc_device);
 342 }
 343
 344 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 345 };
 346
 347 static struct omap2_hsmmc_info mmc[] = {
 348         {
 349                 .mmc            = 1,
 350                 .caps           = MMC_CAP_4_BIT_DATA,
 351                 .gpio_cd        = 127,
 352                 .gpio_wp        = 126,
 353         },
 354         {
 355                 .mmc            = 2,
 356                 .caps           = MMC_CAP_4_BIT_DATA,
 357                 .gpio_cd        = 128,
 358                 .gpio_wp        = 129,
 359         },
 360         {}      /* Terminator */
 361 };
 362
 363
 364 static void __init am3517_evm_init(void)
 365 {
 366         omap_board_config = am3517_evm_config;
 367         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
 368         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 369
 370         am3517_evm_i2c_init();
 371         omap_display_init(&am3517_evm_dss_data);
 372         omap_serial_init();
 373         omap_sdrc_init(NULL, NULL);
 374
 375         /* Configure GPIO for EHCI port */
 376         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 377         usbhs_init(&usbhs_bdata);
 378         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 379         /* DSS */
 380         am3517_evm_display_init();
 381
 382         /* RTC - S35390A */
 383         am3517_evm_rtc_init();
 384
 385         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 386                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 387         /*Ethernet*/
 388         am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
 389
 390         /* MUSB */
 391         am3517_evm_musb_init();
 392
 393         /* MMC init function */
 394         omap_hsmmc_init(mmc);
 395 }
 396
 397 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 398         .atag_offset    = 0x100,
 399         .reserve        = omap_reserve,
 400         .map_io         = omap3_map_io,
 401         .init_early     = am35xx_init_early,
 402         .init_irq       = omap3_init_irq,
 403         .handle_irq     = omap3_intc_handle_irq,
 404         .init_machine   = am3517_evm_init,
 405         .timer          = &omap3_timer,
 406         .restart        = omap_prcm_restart,
 407 MACHINE_END