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/platform_data/gpio-omap.h>
  29
  30 #include "am35xx.h"
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include "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-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 };
 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 const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 277         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 278 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 279                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 280         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
 281 #else
 282         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 283 #endif
 284         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 285
 286         .phy_reset  = true,
 287         .reset_gpio_port[0]  = 57,
 288         .reset_gpio_port[1]  = -EINVAL,
 289         .reset_gpio_port[2]  = -EINVAL
 290 };
 291
 292 #ifdef CONFIG_OMAP_MUX
 293 static struct omap_board_mux board_mux[] __initdata = {
 294         /* USB OTG DRVVBUS offset = 0x212 */
 295         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
 296         { .reg_offset = OMAP_MUX_TERMINATOR },
 297 };
 298 #endif
 299
 300
 301 static struct resource am3517_hecc_resources[] = {
 302         {
 303                 .start  = AM35XX_IPSS_HECC_BASE,
 304                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 305                 .flags  = IORESOURCE_MEM,
 306         },
 307         {
 308                 .start  = 24 + OMAP_INTC_START,
 309                 .flags  = IORESOURCE_IRQ,
 310         },
 311 };
 312
 313 static struct platform_device am3517_hecc_device = {
 314         .name           = "ti_hecc",
 315         .id             = -1,
 316         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 317         .resource       = am3517_hecc_resources,
 318 };
 319
 320 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 321         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 322         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 323         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 324         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 325         .int_line               = AM35XX_HECC_INT_LINE,
 326         .version                = AM35XX_HECC_VERSION,
 327 };
 328
 329 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 330 {
 331         am3517_hecc_device.dev.platform_data = pdata;
 332         platform_device_register(&am3517_hecc_device);
 333 }
 334
 335 static struct omap2_hsmmc_info mmc[] = {
 336         {
 337                 .mmc            = 1,
 338                 .caps           = MMC_CAP_4_BIT_DATA,
 339                 .gpio_cd        = 127,
 340                 .gpio_wp        = 126,
 341         },
 342         {
 343                 .mmc            = 2,
 344                 .caps           = MMC_CAP_4_BIT_DATA,
 345                 .gpio_cd        = 128,
 346                 .gpio_wp        = 129,
 347         },
 348         {}      /* Terminator */
 349 };
 350
 351
 352 static void __init am3517_evm_init(void)
 353 {
 354         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 355
 356         am3517_evm_i2c_init();
 357         omap_display_init(&am3517_evm_dss_data);
 358         omap_serial_init();
 359         omap_sdrc_init(NULL, NULL);
 360
 361         /* Configure GPIO for EHCI port */
 362         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 363         usbhs_init(&usbhs_bdata);
 364         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 365         /* DSS */
 366         am3517_evm_display_init();
 367
 368         /* RTC - S35390A */
 369         am3517_evm_rtc_init();
 370
 371         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 372                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 373         /*Ethernet*/
 374         am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
 375
 376         /* MUSB */
 377         am3517_evm_musb_init();
 378
 379         /* McBSP1 */
 380         am3517_evm_mcbsp1_init();
 381
 382         /* MMC init function */
 383         omap_hsmmc_init(mmc);
 384 }
 385
 386 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 387         .atag_offset    = 0x100,
 388         .reserve        = omap_reserve,
 389         .map_io         = omap3_map_io,
 390         .init_early     = am35xx_init_early,
 391         .init_irq       = omap3_init_irq,
 392         .handle_irq     = omap3_intc_handle_irq,
 393         .init_machine   = am3517_evm_init,
 394         .init_late      = am35xx_init_late,
 395         .timer          = &omap3_timer,
 396         .restart        = omap_prcm_restart,
 397 MACHINE_END