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/control.h>
  36 #include <plat/usb.h>
  37 #include <plat/display.h>
  38
  39 #include "mux.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 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_i2c_boardinfo[] = {
 140         {
 141                 I2C_BOARD_INFO("s35390a", 0x30),
 142                 .type           = "s35390a",
 143         },
 144 };
 145
 146 /*
 147  * RTC - S35390A
 148  */
 149 #define GPIO_RTCS35390A_IRQ     55
 150
 151 static void __init am3517_evm_rtc_init(void)
 152 {
 153         int r;
 154
 155         omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
 156         r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
 157         if (r < 0) {
 158                 printk(KERN_WARNING "failed to request GPIO#%d\n",
 159                                 GPIO_RTCS35390A_IRQ);
 160                 return;
 161         }
 162         r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
 163         if (r < 0) {
 164                 printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
 165                                 GPIO_RTCS35390A_IRQ);
 166                 gpio_free(GPIO_RTCS35390A_IRQ);
 167                 return;
 168         }
 169         am3517evm_i2c_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
 170 }
 171
 172 /*
 173  * I2C GPIO Expander - TCA6416
 174  */
 175
 176 /* Mounted on Base-Board */
 177 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
 178         .gpio_base      = OMAP_MAX_GPIO_LINES,
 179 };
 180 static struct i2c_board_info __initdata am3517evm_tca6416_info_0[] = {
 181         {
 182                 I2C_BOARD_INFO("tca6416", 0x21),
 183                 .platform_data = &am3517evm_gpio_expander_info_0,
 184         },
 185 };
 186
 187 /* Mounted on UI Card */
 188 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
 189         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
 190 };
 191 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
 192         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
 193 };
 194 static struct i2c_board_info __initdata am3517evm_ui_tca6416_info[] = {
 195         {
 196                 I2C_BOARD_INFO("tca6416", 0x20),
 197                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
 198         },
 199         {
 200                 I2C_BOARD_INFO("tca6416", 0x21),
 201                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
 202         },
 203 };
 204
 205 static int __init am3517_evm_i2c_init(void)
 206 {
 207         omap_register_i2c_bus(1, 400, NULL, 0);
 208         omap_register_i2c_bus(2, 400, am3517evm_tca6416_info_0,
 209                         ARRAY_SIZE(am3517evm_tca6416_info_0));
 210         omap_register_i2c_bus(3, 400, am3517evm_ui_tca6416_info,
 211                         ARRAY_SIZE(am3517evm_ui_tca6416_info));
 212
 213         return 0;
 214 }
 215
 216 static int lcd_enabled;
 217 static int dvi_enabled;
 218
 219 static void __init am3517_evm_display_init(void)
 220 {
 221         int r;
 222
 223         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 224         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 225         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 226         /*
 227          * Enable GPIO 182 = LCD Backlight Power
 228          */
 229         r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
 230         if (r) {
 231                 printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
 232                 return;
 233         }
 234         gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
 235         /*
 236          * Enable GPIO 181 = LCD Panel PWM
 237          */
 238         r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
 239         if (r) {
 240                 printk(KERN_ERR "failed to get lcd_pwm\n");
 241                 goto err_1;
 242         }
 243         gpio_direction_output(LCD_PANEL_PWM, 1);
 244         /*
 245          * Enable GPIO 176 = LCD Panel Power enable pin
 246          */
 247         r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
 248         if (r) {
 249                 printk(KERN_ERR "failed to get lcd_panel_pwr\n");
 250                 goto err_2;
 251         }
 252         gpio_direction_output(LCD_PANEL_PWR, 1);
 253
 254         printk(KERN_INFO "Display initialized successfully\n");
 255         return;
 256
 257 err_2:
 258         gpio_free(LCD_PANEL_PWM);
 259 err_1:
 260         gpio_free(LCD_PANEL_BKLIGHT_PWR);
 261 }
 262
 263 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 264 {
 265         if (dvi_enabled) {
 266                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 267                 return -EINVAL;
 268         }
 269         gpio_set_value(LCD_PANEL_PWR, 1);
 270         lcd_enabled = 1;
 271
 272         return 0;
 273 }
 274
 275 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 276 {
 277         gpio_set_value(LCD_PANEL_PWR, 0);
 278         lcd_enabled = 0;
 279 }
 280
 281 static struct omap_dss_device am3517_evm_lcd_device = {
 282         .type                   = OMAP_DISPLAY_TYPE_DPI,
 283         .name                   = "lcd",
 284         .driver_name            = "sharp_lq_panel",
 285         .phy.dpi.data_lines     = 16,
 286         .platform_enable        = am3517_evm_panel_enable_lcd,
 287         .platform_disable       = am3517_evm_panel_disable_lcd,
 288 };
 289
 290 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 291 {
 292         return 0;
 293 }
 294
 295 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 296 {
 297 }
 298
 299 static struct omap_dss_device am3517_evm_tv_device = {
 300         .type                   = OMAP_DISPLAY_TYPE_VENC,
 301         .name                   = "tv",
 302         .driver_name            = "venc",
 303         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 304         .platform_enable        = am3517_evm_panel_enable_tv,
 305         .platform_disable       = am3517_evm_panel_disable_tv,
 306 };
 307
 308 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
 309 {
 310         if (lcd_enabled) {
 311                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 312                 return -EINVAL;
 313         }
 314         dvi_enabled = 1;
 315
 316         return 0;
 317 }
 318
 319 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
 320 {
 321         dvi_enabled = 0;
 322 }
 323
 324 static struct omap_dss_device am3517_evm_dvi_device = {
 325         .type                   = OMAP_DISPLAY_TYPE_DPI,
 326         .name                   = "dvi",
 327         .driver_name            = "generic_panel",
 328         .phy.dpi.data_lines     = 24,
 329         .platform_enable        = am3517_evm_panel_enable_dvi,
 330         .platform_disable       = am3517_evm_panel_disable_dvi,
 331 };
 332
 333 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 334         &am3517_evm_lcd_device,
 335         &am3517_evm_tv_device,
 336         &am3517_evm_dvi_device,
 337 };
 338
 339 static struct omap_dss_board_info am3517_evm_dss_data = {
 340         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 341         .devices        = am3517_evm_dss_devices,
 342         .default_device = &am3517_evm_lcd_device,
 343 };
 344
 345 struct platform_device am3517_evm_dss_device = {
 346         .name           = "omapdss",
 347         .id             = -1,
 348         .dev            = {
 349                 .platform_data  = &am3517_evm_dss_data,
 350         },
 351 };
 352
 353 /*
 354  * Board initialization
 355  */
 356 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 357 };
 358
 359 static struct platform_device *am3517_evm_devices[] __initdata = {
 360         &am3517_evm_dss_device,
 361 };
 362
 363 static void __init am3517_evm_init_irq(void)
 364 {
 365         omap_board_config = am3517_evm_config;
 366         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
 367
 368         omap2_init_common_hw(NULL, NULL);
 369         omap_init_irq();
 370         omap_gpio_init();
 371 }
 372
 373 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 374         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 375         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 376         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 377
 378         .phy_reset  = true,
 379         .reset_gpio_port[0]  = 57,
 380         .reset_gpio_port[1]  = -EINVAL,
 381         .reset_gpio_port[2]  = -EINVAL
 382 };
 383
 384 #ifdef CONFIG_OMAP_MUX
 385 static struct omap_board_mux board_mux[] __initdata = {
 386         { .reg_offset = OMAP_MUX_TERMINATOR },
 387 };
 388 #else
 389 #define board_mux       NULL
 390 #endif
 391
 392
 393 static struct resource am3517_hecc_resources[] = {
 394         {
 395                 .start  = AM35XX_IPSS_HECC_BASE,
 396                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 397                 .flags  = IORESOURCE_MEM,
 398         },
 399         {
 400                 .start  = INT_35XX_HECC0_IRQ,
 401                 .end    = INT_35XX_HECC0_IRQ,
 402                 .flags  = IORESOURCE_IRQ,
 403         },
 404 };
 405
 406 static struct platform_device am3517_hecc_device = {
 407         .name           = "ti_hecc",
 408         .id             = -1,
 409         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 410         .resource       = am3517_hecc_resources,
 411 };
 412
 413 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 414         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 415         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 416         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 417         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 418         .int_line               = AM35XX_HECC_INT_LINE,
 419         .version                = AM35XX_HECC_VERSION,
 420 };
 421
 422 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 423 {
 424         am3517_hecc_device.dev.platform_data = pdata;
 425         platform_device_register(&am3517_hecc_device);
 426 }
 427
 428 static void __init am3517_evm_init(void)
 429 {
 430         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 431
 432         am3517_evm_i2c_init();
 433         platform_add_devices(am3517_evm_devices,
 434                                 ARRAY_SIZE(am3517_evm_devices));
 435
 436         omap_serial_init();
 437
 438         /* Configure GPIO for EHCI port */
 439         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 440         usb_ehci_init(&ehci_pdata);
 441         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 442         /* DSS */
 443         am3517_evm_display_init();
 444
 445         /* RTC - S35390A */
 446         am3517_evm_rtc_init();
 447
 448         i2c_register_board_info(1, am3517evm_i2c_boardinfo,
 449                                 ARRAY_SIZE(am3517evm_i2c_boardinfo));
 450         /*Ethernet*/
 451         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
 452 }
 453
 454 static void __init am3517_evm_map_io(void)
 455 {
 456         omap2_set_globals_343x();
 457         omap34xx_map_common_io();
 458 }
 459
 460 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 461         .phys_io        = 0x48000000,
 462         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 463         .boot_params    = 0x80000100,
 464         .map_io         = am3517_evm_map_io,
 465         .init_irq       = am3517_evm_init_irq,
 466         .init_machine   = am3517_evm_init,
 467         .timer          = &omap_timer,
 468 MACHINE_END