linux/arch/arm/mach-omap2/board-am3517evm.c
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   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
  50static 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
  61static 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 */
  82static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
  83        .gpio_base      = OMAP_MAX_GPIO_LINES,
  84};
  85static 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 */
  96static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
  97        .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
  98};
  99static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
 100        .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
 101};
 102static 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
 113static 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
 124static int lcd_enabled;
 125static int dvi_enabled;
 126
 127#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 128                defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 129static 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
 138static 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
 156static void __init am3517_evm_display_init(void) {}
 157#endif
 158
 159static 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
 171static 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
 177static 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
 183static 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
 191static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 192{
 193        return 0;
 194}
 195
 196static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 197{
 198}
 199
 200static 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
 209static struct tfp410_platform_data dvi_panel = {
 210        .power_down_gpio        = -1,
 211};
 212
 213static 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
 221static 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
 227static 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
 237static 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
 247static __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
 266static __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
 276static 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
 293static 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
 301static 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
 313static 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
 320static 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
 329static 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
 335static 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
 352static 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
 386MACHINE_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,
 397MACHINE_END
 398