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-generic-dpi.h>
  39 #include <video/omap-panel-tfp410.h>
  40
  41 #include "am35xx-emac.h"
  42 #include "mux.h"
  43 #include "control.h"
  44 #include "hsmmc.h"
  45
  46 #define LCD_PANEL_PWR           176
  47 #define LCD_PANEL_BKLIGHT_PWR   182
  48 #define LCD_PANEL_PWM           181
  49
  50 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
  51         {
  52                 I2C_BOARD_INFO("s35390a", 0x30),
  53         },
  54 };
  55
  56 /*
  57  * RTC - S35390A
  58  */
  59 #define GPIO_RTCS35390A_IRQ     55
  60
  61 static void __init am3517_evm_rtc_init(void)
  62 {
  63         int r;
  64
  65         omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
  66
  67         r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
  68         if (r < 0) {
  69                 printk(KERN_WARNING "failed to request GPIO#%d\n",
  70                                 GPIO_RTCS35390A_IRQ);
  71                 return;
  72         }
  73
  74         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
  75 }
  76
  77 /*
  78  * I2C GPIO Expander - TCA6416
  79  */
  80
  81 /* Mounted on Base-Board */
  82 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
  83         .gpio_base      = OMAP_MAX_GPIO_LINES,
  84 };
  85 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
  86         {
  87                 I2C_BOARD_INFO("tlv320aic23", 0x1A),
  88         },
  89         {
  90                 I2C_BOARD_INFO("tca6416", 0x21),
  91                 .platform_data = &am3517evm_gpio_expander_info_0,
  92         },
  93 };
  94
  95 /* Mounted on UI Card */
  96 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
  97         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
  98 };
  99 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
 100         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
 101 };
 102 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
 103         {
 104                 I2C_BOARD_INFO("tca6416", 0x20),
 105                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
 106         },
 107         {
 108                 I2C_BOARD_INFO("tca6416", 0x21),
 109                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
 110         },
 111 };
 112
 113 static int __init am3517_evm_i2c_init(void)
 114 {
 115         omap_register_i2c_bus(1, 400, NULL, 0);
 116         omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
 117                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
 118         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
 119                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
 120
 121         return 0;
 122 }
 123
 124 static int lcd_enabled;
 125 static int dvi_enabled;
 126
 127 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 128                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 129 static struct gpio am3517_evm_dss_gpios[] __initdata = {
 130         /* GPIO 182 = LCD Backlight Power */
 131         { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
 132         /* GPIO 181 = LCD Panel PWM */
 133         { LCD_PANEL_PWM,         GPIOF_OUT_INIT_HIGH, "lcd bl enable"     },
 134         /* GPIO 176 = LCD Panel Power enable pin */
 135         { LCD_PANEL_PWR,         GPIOF_OUT_INIT_HIGH, "dvi enable"        },
 136 };
 137
 138 static void __init am3517_evm_display_init(void)
 139 {
 140         int r;
 141
 142         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 143         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 144         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 145
 146         r = gpio_request_array(am3517_evm_dss_gpios,
 147                                ARRAY_SIZE(am3517_evm_dss_gpios));
 148         if (r) {
 149                 printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
 150                 return;
 151         }
 152
 153         printk(KERN_INFO "Display initialized successfully\n");
 154 }
 155 #else
 156 static void __init am3517_evm_display_init(void) {}
 157 #endif
 158
 159 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 160 {
 161         if (dvi_enabled) {
 162                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 163                 return -EINVAL;
 164         }
 165         gpio_set_value(LCD_PANEL_PWR, 1);
 166         lcd_enabled = 1;
 167
 168         return 0;
 169 }
 170
 171 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 172 {
 173         gpio_set_value(LCD_PANEL_PWR, 0);
 174         lcd_enabled = 0;
 175 }
 176
 177 static struct panel_generic_dpi_data lcd_panel = {
 178         .name                   = "sharp_lq",
 179         .platform_enable        = am3517_evm_panel_enable_lcd,
 180         .platform_disable       = am3517_evm_panel_disable_lcd,
 181 };
 182
 183 static struct omap_dss_device am3517_evm_lcd_device = {
 184         .type                   = OMAP_DISPLAY_TYPE_DPI,
 185         .name                   = "lcd",
 186         .driver_name            = "generic_dpi_panel",
 187         .data                   = &lcd_panel,
 188         .phy.dpi.data_lines     = 16,
 189 };
 190
 191 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 192 {
 193         return 0;
 194 }
 195
 196 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 197 {
 198 }
 199
 200 static struct omap_dss_device am3517_evm_tv_device = {
 201         .type                   = OMAP_DISPLAY_TYPE_VENC,
 202         .name                   = "tv",
 203         .driver_name            = "venc",
 204         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 205         .platform_enable        = am3517_evm_panel_enable_tv,
 206         .platform_disable       = am3517_evm_panel_disable_tv,
 207 };
 208
 209 static struct tfp410_platform_data dvi_panel = {
 210         .power_down_gpio        = -1,
 211         .i2c_bus_num            = -1,
 212 };
 213
 214 static struct omap_dss_device am3517_evm_dvi_device = {
 215         .type                   = OMAP_DISPLAY_TYPE_DPI,
 216         .name                   = "dvi",
 217         .driver_name            = "tfp410",
 218         .data                   = &dvi_panel,
 219         .phy.dpi.data_lines     = 24,
 220 };
 221
 222 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 223         &am3517_evm_lcd_device,
 224         &am3517_evm_tv_device,
 225         &am3517_evm_dvi_device,
 226 };
 227
 228 static struct omap_dss_board_info am3517_evm_dss_data = {
 229         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 230         .devices        = am3517_evm_dss_devices,
 231         .default_device = &am3517_evm_lcd_device,
 232 };
 233
 234 /*
 235  * Board initialization
 236  */
 237
 238 static struct omap_musb_board_data musb_board_data = {
 239         .interface_type         = MUSB_INTERFACE_ULPI,
 240         .mode                   = MUSB_OTG,
 241         .power                  = 500,
 242         .set_phy_power          = am35x_musb_phy_power,
 243         .clear_irq              = am35x_musb_clear_irq,
 244         .set_mode               = am35x_set_mode,
 245         .reset                  = am35x_musb_reset,
 246 };
 247
 248 static __init void am3517_evm_musb_init(void)
 249 {
 250         u32 devconf2;
 251
 252         /*
 253          * Set up USB clock/mode in the DEVCONF2 register.
 254          */
 255         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
 256
 257         /* USB2.0 PHY reference clock is 13 MHz */
 258         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
 259         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
 260                         | CONF2_DATPOL;
 261
 262         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
 263
 264         usb_musb_init(&musb_board_data);
 265 }
 266
 267 static __init void am3517_evm_mcbsp1_init(void)
 268 {
 269         u32 devconf0;
 270
 271         /* McBSP1 CLKR/FSR signal to be connected to CLKX/FSX pin */
 272         devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
 273         devconf0 |=  OMAP2_MCBSP1_CLKR_MASK | OMAP2_MCBSP1_FSR_MASK;
 274         omap_ctrl_writel(devconf0, OMAP2_CONTROL_DEVCONF0);
 275 }
 276
 277 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
 278         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 279 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 280                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 281         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
 282 #else
 283         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 284 #endif
 285         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 286
 287         .phy_reset  = true,
 288         .reset_gpio_port[0]  = 57,
 289         .reset_gpio_port[1]  = -EINVAL,
 290         .reset_gpio_port[2]  = -EINVAL
 291 };
 292
 293 #ifdef CONFIG_OMAP_MUX
 294 static struct omap_board_mux board_mux[] __initdata = {
 295         /* USB OTG DRVVBUS offset = 0x212 */
 296         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
 297         { .reg_offset = OMAP_MUX_TERMINATOR },
 298 };
 299 #endif
 300
 301
 302 static struct resource am3517_hecc_resources[] = {
 303         {
 304                 .start  = AM35XX_IPSS_HECC_BASE,
 305                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 306                 .flags  = IORESOURCE_MEM,
 307         },
 308         {
 309                 .start  = 24 + OMAP_INTC_START,
 310                 .flags  = IORESOURCE_IRQ,
 311         },
 312 };
 313
 314 static struct platform_device am3517_hecc_device = {
 315         .name           = "ti_hecc",
 316         .id             = -1,
 317         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 318         .resource       = am3517_hecc_resources,
 319 };
 320
 321 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 322         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 323         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 324         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 325         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 326         .int_line               = AM35XX_HECC_INT_LINE,
 327         .version                = AM35XX_HECC_VERSION,
 328 };
 329
 330 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 331 {
 332         am3517_hecc_device.dev.platform_data = pdata;
 333         platform_device_register(&am3517_hecc_device);
 334 }
 335
 336 static struct omap2_hsmmc_info mmc[] = {
 337         {
 338                 .mmc            = 1,
 339                 .caps           = MMC_CAP_4_BIT_DATA,
 340                 .gpio_cd        = 127,
 341                 .gpio_wp        = 126,
 342         },
 343         {
 344                 .mmc            = 2,
 345                 .caps           = MMC_CAP_4_BIT_DATA,
 346                 .gpio_cd        = 128,
 347                 .gpio_wp        = 129,
 348         },
 349         {}      /* Terminator */
 350 };
 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         usbhs_init(&usbhs_bdata);
 365         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 366         /* DSS */
 367         am3517_evm_display_init();
 368
 369         /* RTC - S35390A */
 370         am3517_evm_rtc_init();
 371
 372         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 373                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 374         /*Ethernet*/
 375         am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
 376
 377         /* MUSB */
 378         am3517_evm_musb_init();
 379
 380         /* McBSP1 */
 381         am3517_evm_mcbsp1_init();
 382
 383         /* MMC init function */
 384         omap_hsmmc_init(mmc);
 385 }
 386
 387 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 388         .atag_offset    = 0x100,
 389         .reserve        = omap_reserve,
 390         .map_io         = omap3_map_io,
 391         .init_early     = am35xx_init_early,
 392         .init_irq       = omap3_init_irq,
 393         .handle_irq     = omap3_intc_handle_irq,
 394         .init_machine   = am3517_evm_init,
 395         .init_late      = am35xx_init_late,
 396         .init_time      = omap3_sync32k_timer_init,
 397         .restart        = omap3xxx_restart,
 398 MACHINE_END