arch/arm/mach-omap2/board-omap3beagle.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3beagle.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-3430sdp.c
   7  *
   8  * Initial code: Syed Mohammed Khasim
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/err.h>
  20 #include <linux/clk.h>
  21 #include <linux/io.h>
  22 #include <linux/leds.h>
  23 #include <linux/gpio.h>
  24 #include <linux/input.h>
  25 #include <linux/gpio_keys.h>
  26
  27 #include <linux/mtd/mtd.h>
  28 #include <linux/mtd/partitions.h>
  29 #include <linux/mtd/nand.h>
  30
  31 #include <linux/regulator/machine.h>
  32 #include <linux/i2c/twl4030.h>
  33
  34 #include <mach/hardware.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/map.h>
  38 #include <asm/mach/flash.h>
  39
  40 #include <plat/board.h>
  41 #include <plat/common.h>
  42 #include <plat/gpmc.h>
  43 #include <plat/nand.h>
  44 #include <plat/mux.h>
  45 #include <plat/usb.h>
  46 #include <plat/timer-gp.h>
  47
  48 #include "mux.h"
  49 #include "mmc-twl4030.h"
  50
  51 #define GPMC_CS0_BASE  0x60
  52 #define GPMC_CS_SIZE   0x30
  53
  54 #define NAND_BLOCK_SIZE         SZ_128K
  55
  56 static struct mtd_partition omap3beagle_nand_partitions[] = {
  57         /* All the partition sizes are listed in terms of NAND block size */
  58         {
  59                 .name           = "X-Loader",
  60                 .offset         = 0,
  61                 .size           = 4 * NAND_BLOCK_SIZE,
  62                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  63         },
  64         {
  65                 .name           = "U-Boot",
  66                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  67                 .size           = 15 * NAND_BLOCK_SIZE,
  68                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  69         },
  70         {
  71                 .name           = "U-Boot Env",
  72                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  73                 .size           = 1 * NAND_BLOCK_SIZE,
  74         },
  75         {
  76                 .name           = "Kernel",
  77                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  78                 .size           = 32 * NAND_BLOCK_SIZE,
  79         },
  80         {
  81                 .name           = "File System",
  82                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  83                 .size           = MTDPART_SIZ_FULL,
  84         },
  85 };
  86
  87 static struct omap_nand_platform_data omap3beagle_nand_data = {
  88         .options        = NAND_BUSWIDTH_16,
  89         .parts          = omap3beagle_nand_partitions,
  90         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  91         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  92         .nand_setup     = NULL,
  93         .dev_ready      = NULL,
  94 };
  95
  96 static struct resource omap3beagle_nand_resource = {
  97         .flags          = IORESOURCE_MEM,
  98 };
  99
 100 static struct platform_device omap3beagle_nand_device = {
 101         .name           = "omap2-nand",
 102         .id             = -1,
 103         .dev            = {
 104                 .platform_data  = &omap3beagle_nand_data,
 105         },
 106         .num_resources  = 1,
 107         .resource       = &omap3beagle_nand_resource,
 108 };
 109
 110 #include "sdram-micron-mt46h32m32lf-6.h"
 111
 112 static struct twl4030_hsmmc_info mmc[] = {
 113         {
 114                 .mmc            = 1,
 115                 .wires          = 8,
 116                 .gpio_wp        = 29,
 117         },
 118         {}      /* Terminator */
 119 };
 120
 121 static struct platform_device omap3_beagle_lcd_device = {
 122         .name           = "omap3beagle_lcd",
 123         .id             = -1,
 124 };
 125
 126 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 127         .ctrl_name      = "internal",
 128 };
 129
 130 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 131         .supply                 = "vmmc",
 132 };
 133
 134 static struct regulator_consumer_supply beagle_vsim_supply = {
 135         .supply                 = "vmmc_aux",
 136 };
 137
 138 static struct gpio_led gpio_leds[];
 139
 140 static int beagle_twl_gpio_setup(struct device *dev,
 141                 unsigned gpio, unsigned ngpio)
 142 {
 143         if (system_rev >= 0x20 && system_rev <= 0x34301000) {
 144                 omap_cfg_reg(AG9_34XX_GPIO23);
 145                 mmc[0].gpio_wp = 23;
 146         } else {
 147                 omap_cfg_reg(AH8_34XX_GPIO29);
 148         }
 149         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 150         mmc[0].gpio_cd = gpio + 0;
 151         twl4030_mmc_init(mmc);
 152
 153         /* link regulators to MMC adapters */
 154         beagle_vmmc1_supply.dev = mmc[0].dev;
 155         beagle_vsim_supply.dev = mmc[0].dev;
 156
 157         /* REVISIT: need ehci-omap hooks for external VBUS
 158          * power switch and overcurrent detect
 159          */
 160
 161         gpio_request(gpio + 1, "EHCI_nOC");
 162         gpio_direction_input(gpio + 1);
 163
 164         /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
 165         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 166         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
 167
 168         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 169         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 170
 171         return 0;
 172 }
 173
 174 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 175         .gpio_base      = OMAP_MAX_GPIO_LINES,
 176         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 177         .irq_end        = TWL4030_GPIO_IRQ_END,
 178         .use_leds       = true,
 179         .pullups        = BIT(1),
 180         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 181                                 | BIT(15) | BIT(16) | BIT(17),
 182         .setup          = beagle_twl_gpio_setup,
 183 };
 184
 185 static struct regulator_consumer_supply beagle_vdac_supply = {
 186         .supply         = "vdac",
 187         .dev            = &omap3_beagle_lcd_device.dev,
 188 };
 189
 190 static struct regulator_consumer_supply beagle_vdvi_supply = {
 191         .supply         = "vdvi",
 192         .dev            = &omap3_beagle_lcd_device.dev,
 193 };
 194
 195 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 196 static struct regulator_init_data beagle_vmmc1 = {
 197         .constraints = {
 198                 .min_uV                 = 1850000,
 199                 .max_uV                 = 3150000,
 200                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 201                                         | REGULATOR_MODE_STANDBY,
 202                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 203                                         | REGULATOR_CHANGE_MODE
 204                                         | REGULATOR_CHANGE_STATUS,
 205         },
 206         .num_consumer_supplies  = 1,
 207         .consumer_supplies      = &beagle_vmmc1_supply,
 208 };
 209
 210 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 211 static struct regulator_init_data beagle_vsim = {
 212         .constraints = {
 213                 .min_uV                 = 1800000,
 214                 .max_uV                 = 3000000,
 215                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 216                                         | REGULATOR_MODE_STANDBY,
 217                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 218                                         | REGULATOR_CHANGE_MODE
 219                                         | REGULATOR_CHANGE_STATUS,
 220         },
 221         .num_consumer_supplies  = 1,
 222         .consumer_supplies      = &beagle_vsim_supply,
 223 };
 224
 225 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 226 static struct regulator_init_data beagle_vdac = {
 227         .constraints = {
 228                 .min_uV                 = 1800000,
 229                 .max_uV                 = 1800000,
 230                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 231                                         | REGULATOR_MODE_STANDBY,
 232                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 233                                         | REGULATOR_CHANGE_STATUS,
 234         },
 235         .num_consumer_supplies  = 1,
 236         .consumer_supplies      = &beagle_vdac_supply,
 237 };
 238
 239 /* VPLL2 for digital video outputs */
 240 static struct regulator_init_data beagle_vpll2 = {
 241         .constraints = {
 242                 .name                   = "VDVI",
 243                 .min_uV                 = 1800000,
 244                 .max_uV                 = 1800000,
 245                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 246                                         | REGULATOR_MODE_STANDBY,
 247                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 248                                         | REGULATOR_CHANGE_STATUS,
 249         },
 250         .num_consumer_supplies  = 1,
 251         .consumer_supplies      = &beagle_vdvi_supply,
 252 };
 253
 254 static struct twl4030_usb_data beagle_usb_data = {
 255         .usb_mode       = T2_USB_MODE_ULPI,
 256 };
 257
 258 static struct twl4030_codec_audio_data beagle_audio_data = {
 259         .audio_mclk = 26000000,
 260 };
 261
 262 static struct twl4030_codec_data beagle_codec_data = {
 263         .audio_mclk = 26000000,
 264         .audio = &beagle_audio_data,
 265 };
 266
 267 static struct twl4030_platform_data beagle_twldata = {
 268         .irq_base       = TWL4030_IRQ_BASE,
 269         .irq_end        = TWL4030_IRQ_END,
 270
 271         /* platform_data for children goes here */
 272         .usb            = &beagle_usb_data,
 273         .gpio           = &beagle_gpio_data,
 274         .codec          = &beagle_codec_data,
 275         .vmmc1          = &beagle_vmmc1,
 276         .vsim           = &beagle_vsim,
 277         .vdac           = &beagle_vdac,
 278         .vpll2          = &beagle_vpll2,
 279 };
 280
 281 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 282         {
 283                 I2C_BOARD_INFO("twl4030", 0x48),
 284                 .flags = I2C_CLIENT_WAKE,
 285                 .irq = INT_34XX_SYS_NIRQ,
 286                 .platform_data = &beagle_twldata,
 287         },
 288 };
 289
 290 static int __init omap3_beagle_i2c_init(void)
 291 {
 292         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 293                         ARRAY_SIZE(beagle_i2c_boardinfo));
 294         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 295          * projector don't work reliably with 400kHz */
 296         omap_register_i2c_bus(3, 100, NULL, 0);
 297         return 0;
 298 }
 299
 300 static struct gpio_led gpio_leds[] = {
 301         {
 302                 .name                   = "beagleboard::usr0",
 303                 .default_trigger        = "heartbeat",
 304                 .gpio                   = 150,
 305         },
 306         {
 307                 .name                   = "beagleboard::usr1",
 308                 .default_trigger        = "mmc0",
 309                 .gpio                   = 149,
 310         },
 311         {
 312                 .name                   = "beagleboard::pmu_stat",
 313                 .gpio                   = -EINVAL,      /* gets replaced */
 314                 .active_low             = true,
 315         },
 316 };
 317
 318 static struct gpio_led_platform_data gpio_led_info = {
 319         .leds           = gpio_leds,
 320         .num_leds       = ARRAY_SIZE(gpio_leds),
 321 };
 322
 323 static struct platform_device leds_gpio = {
 324         .name   = "leds-gpio",
 325         .id     = -1,
 326         .dev    = {
 327                 .platform_data  = &gpio_led_info,
 328         },
 329 };
 330
 331 static struct gpio_keys_button gpio_buttons[] = {
 332         {
 333                 .code                   = BTN_EXTRA,
 334                 .gpio                   = 7,
 335                 .desc                   = "user",
 336                 .wakeup                 = 1,
 337         },
 338 };
 339
 340 static struct gpio_keys_platform_data gpio_key_info = {
 341         .buttons        = gpio_buttons,
 342         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 343 };
 344
 345 static struct platform_device keys_gpio = {
 346         .name   = "gpio-keys",
 347         .id     = -1,
 348         .dev    = {
 349                 .platform_data  = &gpio_key_info,
 350         },
 351 };
 352
 353 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 354         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 355 };
 356
 357 static void __init omap3_beagle_init_irq(void)
 358 {
 359         omap_board_config = omap3_beagle_config;
 360         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 361         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 362                              mt46h32m32lf6_sdrc_params);
 363         omap_init_irq();
 364 #ifdef CONFIG_OMAP_32K_TIMER
 365         omap2_gp_clockevent_set_gptimer(12);
 366 #endif
 367         omap_gpio_init();
 368 }
 369
 370 static struct platform_device *omap3_beagle_devices[] __initdata = {
 371         &omap3_beagle_lcd_device,
 372         &leds_gpio,
 373         &keys_gpio,
 374 };
 375
 376 static void __init omap3beagle_flash_init(void)
 377 {
 378         u8 cs = 0;
 379         u8 nandcs = GPMC_CS_NUM + 1;
 380
 381         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 382
 383         /* find out the chip-select on which NAND exists */
 384         while (cs < GPMC_CS_NUM) {
 385                 u32 ret = 0;
 386                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 387
 388                 if ((ret & 0xC00) == 0x800) {
 389                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 390                         if (nandcs > GPMC_CS_NUM)
 391                                 nandcs = cs;
 392                 }
 393                 cs++;
 394         }
 395
 396         if (nandcs > GPMC_CS_NUM) {
 397                 printk(KERN_INFO "NAND: Unable to find configuration "
 398                                  "in GPMC\n ");
 399                 return;
 400         }
 401
 402         if (nandcs < GPMC_CS_NUM) {
 403                 omap3beagle_nand_data.cs = nandcs;
 404                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 405                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 406                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 407
 408                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 409                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 410                         printk(KERN_ERR "Unable to register NAND device\n");
 411         }
 412 }
 413
 414 static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 415
 416         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 417         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 418         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 419
 420         .phy_reset  = true,
 421         .reset_gpio_port[0]  = -EINVAL,
 422         .reset_gpio_port[1]  = 147,
 423         .reset_gpio_port[2]  = -EINVAL
 424 };
 425
 426 #ifdef CONFIG_OMAP_MUX
 427 static struct omap_board_mux board_mux[] __initdata = {
 428         { .reg_offset = OMAP_MUX_TERMINATOR },
 429 };
 430 #else
 431 #define board_mux       NULL
 432 #endif
 433
 434 static void __init omap3_beagle_init(void)
 435 {
 436         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 437         omap3_beagle_i2c_init();
 438         platform_add_devices(omap3_beagle_devices,
 439                         ARRAY_SIZE(omap3_beagle_devices));
 440         omap_serial_init();
 441
 442         omap_cfg_reg(J25_34XX_GPIO170);
 443         gpio_request(170, "DVI_nPD");
 444         /* REVISIT leave DVI powered down until it's needed ... */
 445         gpio_direction_output(170, true);
 446
 447         usb_musb_init();
 448         usb_ehci_init(&ehci_pdata);
 449         omap3beagle_flash_init();
 450
 451         /* Ensure SDRC pins are mux'd for self-refresh */
 452         omap_cfg_reg(H16_34XX_SDRC_CKE0);
 453         omap_cfg_reg(H17_34XX_SDRC_CKE1);
 454 }
 455
 456 static void __init omap3_beagle_map_io(void)
 457 {
 458         omap2_set_globals_343x();
 459         omap2_map_common_io();
 460 }
 461
 462 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 463         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 464         .phys_io        = 0x48000000,
 465         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 466         .boot_params    = 0x80000100,
 467         .map_io         = omap3_beagle_map_io,
 468         .init_irq       = omap3_beagle_init_irq,
 469         .init_machine   = omap3_beagle_init,
 470         .timer          = &omap_timer,
 471 MACHINE_END