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/platform_device.h>
  22 #include <linux/gpio.h>
  23 #include <linux/i2c/pca953x.h>
  24 #include <linux/can/platform/ti_hecc.h>
  25 #include <linux/davinci_emac.h>
  26
  27 #include <mach/hardware.h>
  28 #include <mach/am35xx.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32
  33 #include <plat/board.h>
  34 #include <plat/common.h>
  35 #include <plat/usb.h>
  36 #include <plat/display.h>
  37
  38 #include "mux.h"
  39 #include "control.h"
  40
  41 #define AM35XX_EVM_PHY_MASK             (0xF)
  42 #define AM35XX_EVM_MDIO_FREQUENCY       (1000000)
  43
  44 static struct emac_platform_data am3517_evm_emac_pdata = {
  45         .phy_mask       = AM35XX_EVM_PHY_MASK,
  46         .mdio_max_freq  = AM35XX_EVM_MDIO_FREQUENCY,
  47         .rmii_en        = 1,
  48 };
  49
  50 static struct resource am3517_emac_resources[] = {
  51         {
  52                 .start  = AM35XX_IPSS_EMAC_BASE,
  53                 .end    = AM35XX_IPSS_EMAC_BASE + 0x3FFFF,
  54                 .flags  = IORESOURCE_MEM,
  55         },
  56         {
  57                 .start  = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
  58                 .end    = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
  59                 .flags  = IORESOURCE_IRQ,
  60         },
  61         {
  62                 .start  = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
  63                 .end    = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
  64                 .flags  = IORESOURCE_IRQ,
  65         },
  66         {
  67                 .start  = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
  68                 .end    = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
  69                 .flags  = IORESOURCE_IRQ,
  70         },
  71         {
  72                 .start  = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
  73                 .end    = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
  74                 .flags  = IORESOURCE_IRQ,
  75         },
  76 };
  77
  78 static struct platform_device am3517_emac_device = {
  79         .name           = "davinci_emac",
  80         .id             = -1,
  81         .num_resources  = ARRAY_SIZE(am3517_emac_resources),
  82         .resource       = am3517_emac_resources,
  83 };
  84
  85 static void am3517_enable_ethernet_int(void)
  86 {
  87         u32 regval;
  88
  89         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
  90         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
  91                 AM35XX_CPGMAC_C0_TX_PULSE_CLR |
  92                 AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
  93                 AM35XX_CPGMAC_C0_RX_THRESH_CLR);
  94         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
  95         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
  96 }
  97
  98 static void am3517_disable_ethernet_int(void)
  99 {
 100         u32 regval;
 101
 102         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 103         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
 104                 AM35XX_CPGMAC_C0_TX_PULSE_CLR);
 105         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
 106         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
 107 }
 108
 109 static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
 110 {
 111         unsigned int regval;
 112
 113         pdata->ctrl_reg_offset          = AM35XX_EMAC_CNTRL_OFFSET;
 114         pdata->ctrl_mod_reg_offset      = AM35XX_EMAC_CNTRL_MOD_OFFSET;
 115         pdata->ctrl_ram_offset          = AM35XX_EMAC_CNTRL_RAM_OFFSET;
 116         pdata->mdio_reg_offset          = AM35XX_EMAC_MDIO_OFFSET;
 117         pdata->ctrl_ram_size            = AM35XX_EMAC_CNTRL_RAM_SIZE;
 118         pdata->version                  = EMAC_VERSION_2;
 119         pdata->hw_ram_addr              = AM35XX_EMAC_HW_RAM_ADDR;
 120         pdata->interrupt_enable         = am3517_enable_ethernet_int;
 121         pdata->interrupt_disable        = am3517_disable_ethernet_int;
 122         am3517_emac_device.dev.platform_data    = pdata;
 123         platform_device_register(&am3517_emac_device);
 124
 125         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 126         regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
 127         omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
 128         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
 129
 130         return ;
 131 }
 132
 133
 134
 135 #define LCD_PANEL_PWR           176
 136 #define LCD_PANEL_BKLIGHT_PWR   182
 137 #define LCD_PANEL_PWM           181
 138
 139 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
 140         {
 141                 I2C_BOARD_INFO("s35390a", 0x30),
 142         },
 143 };
 144
 145 /*
 146  * RTC - S35390A
 147  */
 148 #define GPIO_RTCS35390A_IRQ     55
 149
 150 static void __init am3517_evm_rtc_init(void)
 151 {
 152         int r;
 153
 154         omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
 155         r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
 156         if (r < 0) {
 157                 printk(KERN_WARNING "failed to request GPIO#%d\n",
 158                                 GPIO_RTCS35390A_IRQ);
 159                 return;
 160         }
 161         r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
 162         if (r < 0) {
 163                 printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
 164                                 GPIO_RTCS35390A_IRQ);
 165                 gpio_free(GPIO_RTCS35390A_IRQ);
 166                 return;
 167         }
 168         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
 169 }
 170
 171 /*
 172  * I2C GPIO Expander - TCA6416
 173  */
 174
 175 /* Mounted on Base-Board */
 176 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
 177         .gpio_base      = OMAP_MAX_GPIO_LINES,
 178 };
 179 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
 180         {
 181                 I2C_BOARD_INFO("tca6416", 0x21),
 182                 .platform_data = &am3517evm_gpio_expander_info_0,
 183         },
 184 };
 185
 186 /* Mounted on UI Card */
 187 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
 188         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
 189 };
 190 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
 191         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
 192 };
 193 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
 194         {
 195                 I2C_BOARD_INFO("tca6416", 0x20),
 196                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
 197         },
 198         {
 199                 I2C_BOARD_INFO("tca6416", 0x21),
 200                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
 201         },
 202 };
 203
 204 static int __init am3517_evm_i2c_init(void)
 205 {
 206         omap_register_i2c_bus(1, 400, NULL, 0);
 207         omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
 208                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
 209         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
 210                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
 211
 212         return 0;
 213 }
 214
 215 static int lcd_enabled;
 216 static int dvi_enabled;
 217
 218 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 219                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 220 static void __init am3517_evm_display_init(void)
 221 {
 222         int r;
 223
 224         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 225         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 226         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 227         /*
 228          * Enable GPIO 182 = LCD Backlight Power
 229          */
 230         r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
 231         if (r) {
 232                 printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
 233                 return;
 234         }
 235         gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
 236         /*
 237          * Enable GPIO 181 = LCD Panel PWM
 238          */
 239         r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
 240         if (r) {
 241                 printk(KERN_ERR "failed to get lcd_pwm\n");
 242                 goto err_1;
 243         }
 244         gpio_direction_output(LCD_PANEL_PWM, 1);
 245         /*
 246          * Enable GPIO 176 = LCD Panel Power enable pin
 247          */
 248         r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
 249         if (r) {
 250                 printk(KERN_ERR "failed to get lcd_panel_pwr\n");
 251                 goto err_2;
 252         }
 253         gpio_direction_output(LCD_PANEL_PWR, 1);
 254
 255         printk(KERN_INFO "Display initialized successfully\n");
 256         return;
 257
 258 err_2:
 259         gpio_free(LCD_PANEL_PWM);
 260 err_1:
 261         gpio_free(LCD_PANEL_BKLIGHT_PWR);
 262 }
 263 #else
 264 static void __init am3517_evm_display_init(void) {}
 265 #endif
 266
 267 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 268 {
 269         if (dvi_enabled) {
 270                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 271                 return -EINVAL;
 272         }
 273         gpio_set_value(LCD_PANEL_PWR, 1);
 274         lcd_enabled = 1;
 275
 276         return 0;
 277 }
 278
 279 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 280 {
 281         gpio_set_value(LCD_PANEL_PWR, 0);
 282         lcd_enabled = 0;
 283 }
 284
 285 static struct omap_dss_device am3517_evm_lcd_device = {
 286         .type                   = OMAP_DISPLAY_TYPE_DPI,
 287         .name                   = "lcd",
 288         .driver_name            = "sharp_lq_panel",
 289         .phy.dpi.data_lines     = 16,
 290         .platform_enable        = am3517_evm_panel_enable_lcd,
 291         .platform_disable       = am3517_evm_panel_disable_lcd,
 292 };
 293
 294 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 295 {
 296         return 0;
 297 }
 298
 299 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 300 {
 301 }
 302
 303 static struct omap_dss_device am3517_evm_tv_device = {
 304         .type                   = OMAP_DISPLAY_TYPE_VENC,
 305         .name                   = "tv",
 306         .driver_name            = "venc",
 307         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 308         .platform_enable        = am3517_evm_panel_enable_tv,
 309         .platform_disable       = am3517_evm_panel_disable_tv,
 310 };
 311
 312 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
 313 {
 314         if (lcd_enabled) {
 315                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 316                 return -EINVAL;
 317         }
 318         dvi_enabled = 1;
 319
 320         return 0;
 321 }
 322
 323 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
 324 {
 325         dvi_enabled = 0;
 326 }
 327
 328 static struct omap_dss_device am3517_evm_dvi_device = {
 329         .type                   = OMAP_DISPLAY_TYPE_DPI,
 330         .name                   = "dvi",
 331         .driver_name            = "generic_panel",
 332         .phy.dpi.data_lines     = 24,
 333         .platform_enable        = am3517_evm_panel_enable_dvi,
 334         .platform_disable       = am3517_evm_panel_disable_dvi,
 335 };
 336
 337 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 338         &am3517_evm_lcd_device,
 339         &am3517_evm_tv_device,
 340         &am3517_evm_dvi_device,
 341 };
 342
 343 static struct omap_dss_board_info am3517_evm_dss_data = {
 344         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 345         .devices        = am3517_evm_dss_devices,
 346         .default_device = &am3517_evm_lcd_device,
 347 };
 348
 349 static struct platform_device am3517_evm_dss_device = {
 350         .name           = "omapdss",
 351         .id             = -1,
 352         .dev            = {
 353                 .platform_data  = &am3517_evm_dss_data,
 354         },
 355 };
 356
 357 /*
 358  * Board initialization
 359  */
 360 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 361 };
 362
 363 static struct platform_device *am3517_evm_devices[] __initdata = {
 364         &am3517_evm_dss_device,
 365 };
 366
 367 static void __init am3517_evm_init_irq(void)
 368 {
 369         omap_board_config = am3517_evm_config;
 370         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
 371
 372         omap2_init_common_hw(NULL, NULL);
 373         omap_init_irq();
 374         omap_gpio_init();
 375 }
 376
 377 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 378         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 379 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 380                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 381         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 382 #else
 383         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 384 #endif
 385         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 386
 387         .phy_reset  = true,
 388         .reset_gpio_port[0]  = 57,
 389         .reset_gpio_port[1]  = -EINVAL,
 390         .reset_gpio_port[2]  = -EINVAL
 391 };
 392
 393 #ifdef CONFIG_OMAP_MUX
 394 static struct omap_board_mux board_mux[] __initdata = {
 395         { .reg_offset = OMAP_MUX_TERMINATOR },
 396 };
 397 #else
 398 #define board_mux       NULL
 399 #endif
 400
 401
 402 static struct resource am3517_hecc_resources[] = {
 403         {
 404                 .start  = AM35XX_IPSS_HECC_BASE,
 405                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 406                 .flags  = IORESOURCE_MEM,
 407         },
 408         {
 409                 .start  = INT_35XX_HECC0_IRQ,
 410                 .end    = INT_35XX_HECC0_IRQ,
 411                 .flags  = IORESOURCE_IRQ,
 412         },
 413 };
 414
 415 static struct platform_device am3517_hecc_device = {
 416         .name           = "ti_hecc",
 417         .id             = -1,
 418         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 419         .resource       = am3517_hecc_resources,
 420 };
 421
 422 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 423         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 424         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 425         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 426         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 427         .int_line               = AM35XX_HECC_INT_LINE,
 428         .version                = AM35XX_HECC_VERSION,
 429 };
 430
 431 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 432 {
 433         am3517_hecc_device.dev.platform_data = pdata;
 434         platform_device_register(&am3517_hecc_device);
 435 }
 436
 437 static void __init am3517_evm_init(void)
 438 {
 439         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 440
 441         am3517_evm_i2c_init();
 442         platform_add_devices(am3517_evm_devices,
 443                                 ARRAY_SIZE(am3517_evm_devices));
 444
 445         omap_serial_init();
 446
 447         /* Configure GPIO for EHCI port */
 448         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 449         usb_ehci_init(&ehci_pdata);
 450         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 451         /* DSS */
 452         am3517_evm_display_init();
 453
 454         /* RTC - S35390A */
 455         am3517_evm_rtc_init();
 456
 457         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 458                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 459         /*Ethernet*/
 460         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
 461 }
 462
 463 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 464         .phys_io        = 0x48000000,
 465         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 466         .boot_params    = 0x80000100,
 467         .map_io         = omap3_map_io,
 468         .reserve        = omap_reserve,
 469         .init_irq       = am3517_evm_init_irq,
 470         .init_machine   = am3517_evm_init,
 471         .timer          = &omap_timer,
 472 MACHINE_END