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_i2c1_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_i2c1_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_i2c2_boardinfo[] = {
 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_i2c3_boardinfo[] = {
 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_i2c2_boardinfo,
 209                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
 210         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
 211                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
 212
 213         return 0;
 214 }
 215
 216 static int lcd_enabled;
 217 static int dvi_enabled;
 218
 219 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 220                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 221 static void __init am3517_evm_display_init(void)
 222 {
 223         int r;
 224
 225         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
 226         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
 227         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
 228         /*
 229          * Enable GPIO 182 = LCD Backlight Power
 230          */
 231         r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
 232         if (r) {
 233                 printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
 234                 return;
 235         }
 236         gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
 237         /*
 238          * Enable GPIO 181 = LCD Panel PWM
 239          */
 240         r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
 241         if (r) {
 242                 printk(KERN_ERR "failed to get lcd_pwm\n");
 243                 goto err_1;
 244         }
 245         gpio_direction_output(LCD_PANEL_PWM, 1);
 246         /*
 247          * Enable GPIO 176 = LCD Panel Power enable pin
 248          */
 249         r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
 250         if (r) {
 251                 printk(KERN_ERR "failed to get lcd_panel_pwr\n");
 252                 goto err_2;
 253         }
 254         gpio_direction_output(LCD_PANEL_PWR, 1);
 255
 256         printk(KERN_INFO "Display initialized successfully\n");
 257         return;
 258
 259 err_2:
 260         gpio_free(LCD_PANEL_PWM);
 261 err_1:
 262         gpio_free(LCD_PANEL_BKLIGHT_PWR);
 263 }
 264 #else
 265 static void __init am3517_evm_display_init(void) {}
 266 #endif
 267
 268 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
 269 {
 270         if (dvi_enabled) {
 271                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 272                 return -EINVAL;
 273         }
 274         gpio_set_value(LCD_PANEL_PWR, 1);
 275         lcd_enabled = 1;
 276
 277         return 0;
 278 }
 279
 280 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
 281 {
 282         gpio_set_value(LCD_PANEL_PWR, 0);
 283         lcd_enabled = 0;
 284 }
 285
 286 static struct omap_dss_device am3517_evm_lcd_device = {
 287         .type                   = OMAP_DISPLAY_TYPE_DPI,
 288         .name                   = "lcd",
 289         .driver_name            = "sharp_lq_panel",
 290         .phy.dpi.data_lines     = 16,
 291         .platform_enable        = am3517_evm_panel_enable_lcd,
 292         .platform_disable       = am3517_evm_panel_disable_lcd,
 293 };
 294
 295 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
 296 {
 297         return 0;
 298 }
 299
 300 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
 301 {
 302 }
 303
 304 static struct omap_dss_device am3517_evm_tv_device = {
 305         .type                   = OMAP_DISPLAY_TYPE_VENC,
 306         .name                   = "tv",
 307         .driver_name            = "venc",
 308         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 309         .platform_enable        = am3517_evm_panel_enable_tv,
 310         .platform_disable       = am3517_evm_panel_disable_tv,
 311 };
 312
 313 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
 314 {
 315         if (lcd_enabled) {
 316                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 317                 return -EINVAL;
 318         }
 319         dvi_enabled = 1;
 320
 321         return 0;
 322 }
 323
 324 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
 325 {
 326         dvi_enabled = 0;
 327 }
 328
 329 static struct omap_dss_device am3517_evm_dvi_device = {
 330         .type                   = OMAP_DISPLAY_TYPE_DPI,
 331         .name                   = "dvi",
 332         .driver_name            = "generic_panel",
 333         .phy.dpi.data_lines     = 24,
 334         .platform_enable        = am3517_evm_panel_enable_dvi,
 335         .platform_disable       = am3517_evm_panel_disable_dvi,
 336 };
 337
 338 static struct omap_dss_device *am3517_evm_dss_devices[] = {
 339         &am3517_evm_lcd_device,
 340         &am3517_evm_tv_device,
 341         &am3517_evm_dvi_device,
 342 };
 343
 344 static struct omap_dss_board_info am3517_evm_dss_data = {
 345         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
 346         .devices        = am3517_evm_dss_devices,
 347         .default_device = &am3517_evm_lcd_device,
 348 };
 349
 350 struct platform_device am3517_evm_dss_device = {
 351         .name           = "omapdss",
 352         .id             = -1,
 353         .dev            = {
 354                 .platform_data  = &am3517_evm_dss_data,
 355         },
 356 };
 357
 358 /*
 359  * Board initialization
 360  */
 361 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 362 };
 363
 364 static struct platform_device *am3517_evm_devices[] __initdata = {
 365         &am3517_evm_dss_device,
 366 };
 367
 368 static void __init am3517_evm_init_irq(void)
 369 {
 370         omap_board_config = am3517_evm_config;
 371         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
 372
 373         omap2_init_common_hw(NULL, NULL);
 374         omap_init_irq();
 375         omap_gpio_init();
 376 }
 377
 378 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 379         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 380 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
 381                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
 382         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 383 #else
 384         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 385 #endif
 386         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 387
 388         .phy_reset  = true,
 389         .reset_gpio_port[0]  = 57,
 390         .reset_gpio_port[1]  = -EINVAL,
 391         .reset_gpio_port[2]  = -EINVAL
 392 };
 393
 394 #ifdef CONFIG_OMAP_MUX
 395 static struct omap_board_mux board_mux[] __initdata = {
 396         { .reg_offset = OMAP_MUX_TERMINATOR },
 397 };
 398 #else
 399 #define board_mux       NULL
 400 #endif
 401
 402
 403 static struct resource am3517_hecc_resources[] = {
 404         {
 405                 .start  = AM35XX_IPSS_HECC_BASE,
 406                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
 407                 .flags  = IORESOURCE_MEM,
 408         },
 409         {
 410                 .start  = INT_35XX_HECC0_IRQ,
 411                 .end    = INT_35XX_HECC0_IRQ,
 412                 .flags  = IORESOURCE_IRQ,
 413         },
 414 };
 415
 416 static struct platform_device am3517_hecc_device = {
 417         .name           = "ti_hecc",
 418         .id             = -1,
 419         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
 420         .resource       = am3517_hecc_resources,
 421 };
 422
 423 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
 424         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 425         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 426         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 427         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 428         .int_line               = AM35XX_HECC_INT_LINE,
 429         .version                = AM35XX_HECC_VERSION,
 430 };
 431
 432 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 433 {
 434         am3517_hecc_device.dev.platform_data = pdata;
 435         platform_device_register(&am3517_hecc_device);
 436 }
 437
 438 static void __init am3517_evm_init(void)
 439 {
 440         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 441
 442         am3517_evm_i2c_init();
 443         platform_add_devices(am3517_evm_devices,
 444                                 ARRAY_SIZE(am3517_evm_devices));
 445
 446         omap_serial_init();
 447
 448         /* Configure GPIO for EHCI port */
 449         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
 450         usb_ehci_init(&ehci_pdata);
 451         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
 452         /* DSS */
 453         am3517_evm_display_init();
 454
 455         /* RTC - S35390A */
 456         am3517_evm_rtc_init();
 457
 458         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
 459                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
 460         /*Ethernet*/
 461         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
 462 }
 463
 464 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
 465         .phys_io        = 0x48000000,
 466         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 467         .boot_params    = 0x80000100,
 468         .map_io         = omap3_map_io,
 469         .reserve        = omap_reserve,
 470         .init_irq       = am3517_evm_init_irq,
 471         .init_machine   = am3517_evm_init,
 472         .timer          = &omap_timer,
 473 MACHINE_END