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 #include <linux/usb/musb.h>
  29 #include <linux/platform_data/gpio-omap.h>
  30
  31 #include "am35xx.h"
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include "common.h"
  37 #include <video/omapdss.h>
  38 #include <video/omap-panel-data.h>
  39
  40 #include "am35xx-emac.h"
  41 #include "mux.h"
  42 #include "control.h"
  43 #include "hsmmc.h"
  44
  45 #define LCD_PANEL_PWR           176
  46 #define LCD_PANEL_BKLIGHT_PWR   182
  47 #define LCD_PANEL_PWM           181
  48
  49 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
  50         {
  51                 I2C_BOARD_INFO("s35390a", 0x30),
  52         },
  53 };
  54
  55 /*
  56  * RTC - S35390A
  57  */
  58 #define GPIO_RTCS35390A_IRQ     55
  59
  60 static void __init am3517_evm_rtc_init(void)
  61 {
  62         int r;
  63
  64         omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
  65
  66         r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
  67         if (r < 0) {
  68                 printk(KERN_WARNING "failed to request GPIO#%d\n",
  69                                 GPIO_RTCS35390A_IRQ);
  70                 return;
  71         }
  72
  73         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
  74 }
  75
  76 /*
  77  * I2C GPIO Expander - TCA6416
  78  */
  79
  80 /* Mounted on Base-Board */
  81 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
  82         .gpio_base      = OMAP_MAX_GPIO_LINES,
  83 };
  84 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
  85         {
  86                 I2C_BOARD_INFO("tlv320aic23", 0x1A),
  87         },
  88         {
  89                 I2C_BOARD_INFO("tca6416", 0x21),
  90                 .platform_data = &am3517evm_gpio_expander_info_0,
  91         },
  92 };
  93
  94 /* Mounted on UI Card */
  95 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
  96         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
  97 };
  98 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
  99         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
 100 };
 101 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
 102         {
 103                 I2C_BOARD_INFO("tca6416", 0x20),
 104                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
 105         },
 106         {
 107                 I2C_BOARD_INFO("tca6416", 0x21),
 108                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
 109         },
 110 };
 111
 112 static int __init am3517_evm_i2c_init(void)
 113 {
 114         omap_register_i2c_bus(1, 400, NULL, 0);
 115         omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
 116                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
 117         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
 118                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
 119
 120         return 0;
 121 }
 122
 123 static int lcd_enabled;
 124 static int dvi_enabled;
 125
 126 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 127                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 128 static struct gpio am3517_evm_dss_gpios[] __initdata = {
 129         /* GPIO 182 = LCD Backlight Power */
 130         { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
 131         /* GPIO 181 = LCD Panel PWM */
 132         { LCD_PANEL_PWM,         GPIOF_OUT_INIT_HIGH, "lcd bl enable"     },
 133         /* GPIO 176 = LCD Panel Power enable pin */
 134         { LCD_PANEL_PWR,         GPIOF_OUT_INIT_HIGH, "dvi enable"        },
 135 };
 136
 137 static void __init am3517_evm_display_init(void)
 138 {
 139         int r;
 140
 141         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 142         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 143         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 144
 145         r = gpio_request_array(am3517_evm_dss_gpios,
 146                                ARRAY_SIZE(am3517_evm_dss_gpios));
 147         if (r) {
 148                 printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
 149                 return;
 150         }
 151
 152         printk(KERN_INFO "Display initialized successfully\n");
 153 }
 154 #else
 155 static void __init am3517_evm_display_init(void) {}
 156 #endif
 157
 158 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 159 {
 160         if (dvi_enabled) {
 161                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 162                 return -EINVAL;
 163         }
 164         gpio_set_value(LCD_PANEL_PWR, 1);
 165         lcd_enabled = 1;
 166
 167         return 0;
 168 }
 169
 170 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 171 {
 172         gpio_set_value(LCD_PANEL_PWR, 0);
 173         lcd_enabled = 0;
 174 }
 175
 176 static struct panel_generic_dpi_data lcd_panel = {
 177         .name                   = "sharp_lq",
 178         .platform_enable        = am3517_evm_panel_enable_lcd,
 179         .platform_disable       = am3517_evm_panel_disable_lcd,
 180 };
 181
 182 static struct omap_dss_device am3517_evm_lcd_device = {
 183         .type                   = OMAP_DISPLAY_TYPE_DPI,
 184         .name                   = "lcd",
 185         .driver_name            = "generic_dpi_panel",
 186         .data                   = &lcd_panel,
 187         .phy.dpi.data_lines     = 16,
 188 };
 189
 190 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 191 {
 192         return 0;
 193 }
 194
 195 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 196 {
 197 }
 198
 199 static struct omap_dss_device am3517_evm_tv_device = {
 200         .type                   = OMAP_DISPLAY_TYPE_VENC,
 201         .name                   = "tv",
 202         .driver_name            = "venc",
 203         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 204         .platform_enable        = am3517_evm_panel_enable_tv,
 205         .platform_disable       = am3517_evm_panel_disable_tv,
 206 };
 207
 208 static struct tfp410_platform_data dvi_panel = {
 209         .power_down_gpio        = -1,
 210         .i2c_bus_num            = -1,
 211 };
 212
 213 static struct omap_dss_device am3517_evm_dvi_device = {
 214         .type                   = OMAP_DISPLAY_TYPE_DPI,
 215         .name                   = "dvi",
 216         .driver_name            = "tfp410",
 217         .data                   = &dvi_panel,
 218         .phy.dpi.data_lines     = 24,
 219 };
 220
 221 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 222         &am3517_evm_lcd_device,
 223         &am3517_evm_tv_device,
 224         &am3517_evm_dvi_device,
 225 };
 226
 227 static struct omap_dss_board_info am3517_evm_dss_data = {
 228         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 229         .devices        = am3517_evm_dss_devices,
 230         .default_device = &am3517_evm_lcd_device,
 231 };
 232
 233 /*
 234  * Board initialization
 235  */
 236
 237 static struct omap_musb_board_data musb_board_data = {
 238         .interface_type         = MUSB_INTERFACE_ULPI,
 239         .mode                   = MUSB_OTG,
 240         .power                  = 500,
 241         .set_phy_power          = am35x_musb_phy_power,
 242         .clear_irq              = am35x_musb_clear_irq,
 243         .set_mode               = am35x_set_mode,
 244         .reset                  = am35x_musb_reset,
 245 };
 246
 247 static __init void am3517_evm_musb_init(void)
 248 {
 249         u32 devconf2;
 250
 251         /*
 252          * Set up USB clock/mode in the DEVCONF2 register.
 253          */
 254         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
 255
 256         /* USB2.0 PHY reference clock is 13 MHz */
 257         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
 258         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
 259                         | CONF2_DATPOL;
 260
 261         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
 262
 263         usb_musb_init(&musb_board_data);
 264 }
 265
 266 static __init void am3517_evm_mcbsp1_init(void)
 267 {
 268         u32 devconf0;
 269
 270         /* McBSP1 CLKR/FSR signal to be connected to CLKX/FSX pin */
 271         devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
 272         devconf0 |=  OMAP2_MCBSP1_CLKR_MASK | OMAP2_MCBSP1_FSR_MASK;
 273         omap_ctrl_writel(devconf0, OMAP2_CONTROL_DEVCONF0);
 274 }
 275
 276 static struct usbhs_phy_data phy_data[] __initdata = {
 277         {
 278                 .port = 1,
 279                 .reset_gpio = 57,
 280                 .vcc_gpio = -EINVAL,
 281         },
 282 };
 283
 284 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
 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 };
 293
 294 #ifdef CONFIG_OMAP_MUX
 295 static struct omap_board_mux board_mux[] __initdata = {
 296         /* USB OTG DRVVBUS offset = 0x212 */
 297         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
 298         { .reg_offset = OMAP_MUX_TERMINATOR },
 299 };
 300 #endif
 301
 302
 303 static struct resource am3517_hecc_resources[] = {
 304         {
 305                 .start  = AM35XX_IPSS_HECC_BASE,
 306                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 307                 .flags  = IORESOURCE_MEM,
 308         },
 309         {
 310                 .start  = 24 + OMAP_INTC_START,
 311                 .flags  = IORESOURCE_IRQ,
 312         },
 313 };
 314
 315 static struct platform_device am3517_hecc_device = {
 316         .name           = "ti_hecc",
 317         .id             = -1,
 318         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 319         .resource       = am3517_hecc_resources,
 320 };
 321
 322 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 323         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 324         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 325         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 326         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 327         .int_line               = AM35XX_HECC_INT_LINE,
 328         .version                = AM35XX_HECC_VERSION,
 329 };
 330
 331 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 332 {
 333         am3517_hecc_device.dev.platform_data = pdata;
 334         platform_device_register(&am3517_hecc_device);
 335 }
 336
 337 static struct omap2_hsmmc_info mmc[] = {
 338         {
 339                 .mmc            = 1,
 340                 .caps           = MMC_CAP_4_BIT_DATA,
 341                 .gpio_cd        = 127,
 342                 .gpio_wp        = 126,
 343         },
 344         {
 345                 .mmc            = 2,
 346                 .caps           = MMC_CAP_4_BIT_DATA,
 347                 .gpio_cd        = 128,
 348                 .gpio_wp        = 129,
 349         },
 350         {}      /* Terminator */
 351 };
 352
 353 static void __init am3517_evm_init(void)
 354 {
 355         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 356
 357         am3517_evm_i2c_init();
 358         omap_display_init(&am3517_evm_dss_data);
 359         omap_serial_init();
 360         omap_sdrc_init(NULL, NULL);
 361
 362         /* Configure GPIO for EHCI port */
 363         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 364
 365         usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
 366         usbhs_init(&usbhs_bdata);
 367         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 368         /* DSS */
 369         am3517_evm_display_init();
 370
 371         /* RTC - S35390A */
 372         am3517_evm_rtc_init();
 373
 374         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 375                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 376         /*Ethernet*/
 377         am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
 378
 379         /* MUSB */
 380         am3517_evm_musb_init();
 381
 382         /* McBSP1 */
 383         am3517_evm_mcbsp1_init();
 384
 385         /* MMC init function */
 386         omap_hsmmc_init(mmc);
 387 }
 388
 389 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 390         .atag_offset    = 0x100,
 391         .reserve        = omap_reserve,
 392         .map_io         = omap3_map_io,
 393         .init_early     = am35xx_init_early,
 394         .init_irq       = omap3_init_irq,
 395         .handle_irq     = omap3_intc_handle_irq,
 396         .init_machine   = am3517_evm_init,
 397         .init_late      = am35xx_init_late,
 398         .init_time      = omap3_sync32k_timer_init,
 399         .restart        = omap3xxx_restart,
 400 MACHINE_END