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 <mach/board.h>
  41 #include <mach/common.h>
  42 #include <mach/gpmc.h>
  43 #include <mach/nand.h>
  44 #include <mach/mux.h>
  45 #include <mach/usb.h>
  46 #include <mach/timer-gp.h>
  47
  48 #include "mmc-twl4030.h"
  49
  50 #define GPMC_CS0_BASE  0x60
  51 #define GPMC_CS_SIZE   0x30
  52
  53 #define NAND_BLOCK_SIZE         SZ_128K
  54
  55 static struct mtd_partition omap3beagle_nand_partitions[] = {
  56         /* All the partition sizes are listed in terms of NAND block size */
  57         {
  58                 .name           = "X-Loader",
  59                 .offset         = 0,
  60                 .size           = 4 * NAND_BLOCK_SIZE,
  61                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  62         },
  63         {
  64                 .name           = "U-Boot",
  65                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  66                 .size           = 15 * NAND_BLOCK_SIZE,
  67                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  68         },
  69         {
  70                 .name           = "U-Boot Env",
  71                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  72                 .size           = 1 * NAND_BLOCK_SIZE,
  73         },
  74         {
  75                 .name           = "Kernel",
  76                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  77                 .size           = 32 * NAND_BLOCK_SIZE,
  78         },
  79         {
  80                 .name           = "File System",
  81                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  82                 .size           = MTDPART_SIZ_FULL,
  83         },
  84 };
  85
  86 static struct omap_nand_platform_data omap3beagle_nand_data = {
  87         .options        = NAND_BUSWIDTH_16,
  88         .parts          = omap3beagle_nand_partitions,
  89         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  90         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  91         .nand_setup     = NULL,
  92         .dev_ready      = NULL,
  93 };
  94
  95 static struct resource omap3beagle_nand_resource = {
  96         .flags          = IORESOURCE_MEM,
  97 };
  98
  99 static struct platform_device omap3beagle_nand_device = {
 100         .name           = "omap2-nand",
 101         .id             = -1,
 102         .dev            = {
 103                 .platform_data  = &omap3beagle_nand_data,
 104         },
 105         .num_resources  = 1,
 106         .resource       = &omap3beagle_nand_resource,
 107 };
 108
 109 #include "sdram-micron-mt46h32m32lf-6.h"
 110
 111 static struct omap_uart_config omap3_beagle_uart_config __initdata = {
 112         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 113 };
 114
 115 static struct twl4030_hsmmc_info mmc[] = {
 116         {
 117                 .mmc            = 1,
 118                 .wires          = 8,
 119                 .gpio_wp        = 29,
 120         },
 121         {}      /* Terminator */
 122 };
 123
 124 static struct platform_device omap3_beagle_lcd_device = {
 125         .name           = "omap3beagle_lcd",
 126         .id             = -1,
 127 };
 128
 129 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 130         .ctrl_name      = "internal",
 131 };
 132
 133 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 134         .supply                 = "vmmc",
 135 };
 136
 137 static struct regulator_consumer_supply beagle_vsim_supply = {
 138         .supply                 = "vmmc_aux",
 139 };
 140
 141 static struct gpio_led gpio_leds[];
 142
 143 static int beagle_twl_gpio_setup(struct device *dev,
 144                 unsigned gpio, unsigned ngpio)
 145 {
 146         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 147         omap_cfg_reg(AH8_34XX_GPIO29);
 148         mmc[0].gpio_cd = gpio + 0;
 149         twl4030_mmc_init(mmc);
 150
 151         /* link regulators to MMC adapters */
 152         beagle_vmmc1_supply.dev = mmc[0].dev;
 153         beagle_vsim_supply.dev = mmc[0].dev;
 154
 155         /* REVISIT: need ehci-omap hooks for external VBUS
 156          * power switch and overcurrent detect
 157          */
 158
 159         gpio_request(gpio + 1, "EHCI_nOC");
 160         gpio_direction_input(gpio + 1);
 161
 162         /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
 163         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 164         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
 165
 166         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 167         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 168
 169         return 0;
 170 }
 171
 172 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 173         .gpio_base      = OMAP_MAX_GPIO_LINES,
 174         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 175         .irq_end        = TWL4030_GPIO_IRQ_END,
 176         .use_leds       = true,
 177         .pullups        = BIT(1),
 178         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 179                                 | BIT(15) | BIT(16) | BIT(17),
 180         .setup          = beagle_twl_gpio_setup,
 181 };
 182
 183 static struct regulator_consumer_supply beagle_vdac_supply = {
 184         .supply         = "vdac",
 185         .dev            = &omap3_beagle_lcd_device.dev,
 186 };
 187
 188 static struct regulator_consumer_supply beagle_vdvi_supply = {
 189         .supply         = "vdvi",
 190         .dev            = &omap3_beagle_lcd_device.dev,
 191 };
 192
 193 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 194 static struct regulator_init_data beagle_vmmc1 = {
 195         .constraints = {
 196                 .min_uV                 = 1850000,
 197                 .max_uV                 = 3150000,
 198                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 199                                         | REGULATOR_MODE_STANDBY,
 200                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 201                                         | REGULATOR_CHANGE_MODE
 202                                         | REGULATOR_CHANGE_STATUS,
 203         },
 204         .num_consumer_supplies  = 1,
 205         .consumer_supplies      = &beagle_vmmc1_supply,
 206 };
 207
 208 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 209 static struct regulator_init_data beagle_vsim = {
 210         .constraints = {
 211                 .min_uV                 = 1800000,
 212                 .max_uV                 = 3000000,
 213                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 214                                         | REGULATOR_MODE_STANDBY,
 215                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 216                                         | REGULATOR_CHANGE_MODE
 217                                         | REGULATOR_CHANGE_STATUS,
 218         },
 219         .num_consumer_supplies  = 1,
 220         .consumer_supplies      = &beagle_vsim_supply,
 221 };
 222
 223 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 224 static struct regulator_init_data beagle_vdac = {
 225         .constraints = {
 226                 .min_uV                 = 1800000,
 227                 .max_uV                 = 1800000,
 228                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 229                                         | REGULATOR_MODE_STANDBY,
 230                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 231                                         | REGULATOR_CHANGE_STATUS,
 232         },
 233         .num_consumer_supplies  = 1,
 234         .consumer_supplies      = &beagle_vdac_supply,
 235 };
 236
 237 /* VPLL2 for digital video outputs */
 238 static struct regulator_init_data beagle_vpll2 = {
 239         .constraints = {
 240                 .name                   = "VDVI",
 241                 .min_uV                 = 1800000,
 242                 .max_uV                 = 1800000,
 243                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 244                                         | REGULATOR_MODE_STANDBY,
 245                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 246                                         | REGULATOR_CHANGE_STATUS,
 247         },
 248         .num_consumer_supplies  = 1,
 249         .consumer_supplies      = &beagle_vdvi_supply,
 250 };
 251
 252 static struct twl4030_platform_data beagle_twldata = {
 253         .irq_base       = TWL4030_IRQ_BASE,
 254         .irq_end        = TWL4030_IRQ_END,
 255
 256         /* platform_data for children goes here */
 257         .gpio           = &beagle_gpio_data,
 258         .vmmc1          = &beagle_vmmc1,
 259         .vsim           = &beagle_vsim,
 260         .vdac           = &beagle_vdac,
 261         .vpll2          = &beagle_vpll2,
 262 };
 263
 264 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 265         {
 266                 I2C_BOARD_INFO("twl4030", 0x48),
 267                 .flags = I2C_CLIENT_WAKE,
 268                 .irq = INT_34XX_SYS_NIRQ,
 269                 .platform_data = &beagle_twldata,
 270         },
 271 };
 272
 273 static int __init omap3_beagle_i2c_init(void)
 274 {
 275         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 276                         ARRAY_SIZE(beagle_i2c_boardinfo));
 277         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 278          * projector don't work reliably with 400kHz */
 279         omap_register_i2c_bus(3, 100, NULL, 0);
 280         return 0;
 281 }
 282
 283 static void __init omap3_beagle_init_irq(void)
 284 {
 285         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 286         omap_init_irq();
 287 #ifdef CONFIG_OMAP_32K_TIMER
 288         omap2_gp_clockevent_set_gptimer(12);
 289 #endif
 290         omap_gpio_init();
 291 }
 292
 293 static struct gpio_led gpio_leds[] = {
 294         {
 295                 .name                   = "beagleboard::usr0",
 296                 .default_trigger        = "heartbeat",
 297                 .gpio                   = 150,
 298         },
 299         {
 300                 .name                   = "beagleboard::usr1",
 301                 .default_trigger        = "mmc0",
 302                 .gpio                   = 149,
 303         },
 304         {
 305                 .name                   = "beagleboard::pmu_stat",
 306                 .gpio                   = -EINVAL,      /* gets replaced */
 307                 .active_low             = true,
 308         },
 309 };
 310
 311 static struct gpio_led_platform_data gpio_led_info = {
 312         .leds           = gpio_leds,
 313         .num_leds       = ARRAY_SIZE(gpio_leds),
 314 };
 315
 316 static struct platform_device leds_gpio = {
 317         .name   = "leds-gpio",
 318         .id     = -1,
 319         .dev    = {
 320                 .platform_data  = &gpio_led_info,
 321         },
 322 };
 323
 324 static struct gpio_keys_button gpio_buttons[] = {
 325         {
 326                 .code                   = BTN_EXTRA,
 327                 .gpio                   = 7,
 328                 .desc                   = "user",
 329                 .wakeup                 = 1,
 330         },
 331 };
 332
 333 static struct gpio_keys_platform_data gpio_key_info = {
 334         .buttons        = gpio_buttons,
 335         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 336 };
 337
 338 static struct platform_device keys_gpio = {
 339         .name   = "gpio-keys",
 340         .id     = -1,
 341         .dev    = {
 342                 .platform_data  = &gpio_key_info,
 343         },
 344 };
 345
 346 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 347         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 348         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 349 };
 350
 351 static struct platform_device *omap3_beagle_devices[] __initdata = {
 352         &omap3_beagle_lcd_device,
 353         &leds_gpio,
 354         &keys_gpio,
 355 };
 356
 357 static void __init omap3beagle_flash_init(void)
 358 {
 359         u8 cs = 0;
 360         u8 nandcs = GPMC_CS_NUM + 1;
 361
 362         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 363
 364         /* find out the chip-select on which NAND exists */
 365         while (cs < GPMC_CS_NUM) {
 366                 u32 ret = 0;
 367                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 368
 369                 if ((ret & 0xC00) == 0x800) {
 370                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 371                         if (nandcs > GPMC_CS_NUM)
 372                                 nandcs = cs;
 373                 }
 374                 cs++;
 375         }
 376
 377         if (nandcs > GPMC_CS_NUM) {
 378                 printk(KERN_INFO "NAND: Unable to find configuration "
 379                                  "in GPMC\n ");
 380                 return;
 381         }
 382
 383         if (nandcs < GPMC_CS_NUM) {
 384                 omap3beagle_nand_data.cs = nandcs;
 385                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 386                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 387                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 388
 389                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 390                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 391                         printk(KERN_ERR "Unable to register NAND device\n");
 392         }
 393 }
 394
 395 static void __init omap3_beagle_init(void)
 396 {
 397         omap3_beagle_i2c_init();
 398         platform_add_devices(omap3_beagle_devices,
 399                         ARRAY_SIZE(omap3_beagle_devices));
 400         omap_board_config = omap3_beagle_config;
 401         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 402         omap_serial_init();
 403
 404         omap_cfg_reg(J25_34XX_GPIO170);
 405         gpio_request(170, "DVI_nPD");
 406         /* REVISIT leave DVI powered down until it's needed ... */
 407         gpio_direction_output(170, true);
 408
 409         usb_musb_init();
 410         omap3beagle_flash_init();
 411 }
 412
 413 static void __init omap3_beagle_map_io(void)
 414 {
 415         omap2_set_globals_343x();
 416         omap2_map_common_io();
 417 }
 418
 419 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 420         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 421         .phys_io        = 0x48000000,
 422         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 423         .boot_params    = 0x80000100,
 424         .map_io         = omap3_beagle_map_io,
 425         .init_irq       = omap3_beagle_init_irq,
 426         .init_machine   = omap3_beagle_init,
 427         .timer          = &omap_timer,
 428 MACHINE_END