arch/arm/mach-omap1/board-h2.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-h2.c
   3  *
   4  * Board specific inits for OMAP-1610 H2
   5  *
   6  * Copyright (C) 2001 RidgeRun, Inc.
   7  * Author: Greg Lonnon <glonnon@ridgerun.com>
   8  *
   9  * Copyright (C) 2002 MontaVista Software, Inc.
  10  *
  11  * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
  12  * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <tony@atomide.com>
  13  *
  14  * H2 specific changes and cleanup
  15  * Copyright (C) 2004 Nokia Corporation by Imre Deak <imre.deak@nokia.com>
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License version 2 as
  19  * published by the Free Software Foundation.
  20  */
  21
  22 #include <linux/kernel.h>
  23 #include <linux/init.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/delay.h>
  26 #include <linux/i2c.h>
  27 #include <linux/mtd/mtd.h>
  28 #include <linux/mtd/nand.h>
  29 #include <linux/mtd/partitions.h>
  30 #include <linux/input.h>
  31 #include <linux/i2c/tps65010.h>
  32 #include <linux/workqueue.h>
  33 #include <linux/spi/spi.h>
  34 #include <linux/spi/tsc2101.h>
  35 #include <linux/clk.h>
  36
  37 #include <mach/hardware.h>
  38 #include <asm/gpio.h>
  39
  40 #include <asm/mach-types.h>
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/flash.h>
  43 #include <asm/mach/map.h>
  44
  45 #include <mach/gpio.h>
  46 #include <mach/gpio-switch.h>
  47 #include <mach/mux.h>
  48 #include <mach/tc.h>
  49 #include <mach/nand.h>
  50 #include <mach/irda.h>
  51 #include <mach/usb.h>
  52 #include <mach/keypad.h>
  53 #include <mach/common.h>
  54
  55 static int h2_keymap[] = {
  56         KEY(0, 0, KEY_LEFT),
  57         KEY(0, 1, KEY_RIGHT),
  58         KEY(0, 2, KEY_3),
  59         KEY(0, 3, KEY_F10),
  60         KEY(0, 4, KEY_F5),
  61         KEY(0, 5, KEY_9),
  62         KEY(1, 0, KEY_DOWN),
  63         KEY(1, 1, KEY_UP),
  64         KEY(1, 2, KEY_2),
  65         KEY(1, 3, KEY_F9),
  66         KEY(1, 4, KEY_F7),
  67         KEY(1, 5, KEY_0),
  68         KEY(2, 0, KEY_ENTER),
  69         KEY(2, 1, KEY_6),
  70         KEY(2, 2, KEY_1),
  71         KEY(2, 3, KEY_F2),
  72         KEY(2, 4, KEY_F6),
  73         KEY(2, 5, KEY_HOME),
  74         KEY(3, 0, KEY_8),
  75         KEY(3, 1, KEY_5),
  76         KEY(3, 2, KEY_F12),
  77         KEY(3, 3, KEY_F3),
  78         KEY(3, 4, KEY_F8),
  79         KEY(3, 5, KEY_END),
  80         KEY(4, 0, KEY_7),
  81         KEY(4, 1, KEY_4),
  82         KEY(4, 2, KEY_F11),
  83         KEY(4, 3, KEY_F1),
  84         KEY(4, 4, KEY_F4),
  85         KEY(4, 5, KEY_ESC),
  86         KEY(5, 0, KEY_F13),
  87         KEY(5, 1, KEY_F14),
  88         KEY(5, 2, KEY_F15),
  89         KEY(5, 3, KEY_F16),
  90         KEY(5, 4, KEY_SLEEP),
  91         0
  92 };
  93
  94 static struct mtd_partition h2_nor_partitions[] = {
  95         /* bootloader (U-Boot, etc) in first sector */
  96         {
  97               .name             = "bootloader",
  98               .offset           = 0,
  99               .size             = SZ_128K,
 100               .mask_flags       = MTD_WRITEABLE, /* force read-only */
 101         },
 102         /* bootloader params in the next sector */
 103         {
 104               .name             = "params",
 105               .offset           = MTDPART_OFS_APPEND,
 106               .size             = SZ_128K,
 107               .mask_flags       = 0,
 108         },
 109         /* kernel */
 110         {
 111               .name             = "kernel",
 112               .offset           = MTDPART_OFS_APPEND,
 113               .size             = SZ_2M,
 114               .mask_flags       = 0
 115         },
 116         /* file system */
 117         {
 118               .name             = "filesystem",
 119               .offset           = MTDPART_OFS_APPEND,
 120               .size             = MTDPART_SIZ_FULL,
 121               .mask_flags       = 0
 122         }
 123 };
 124
 125 static struct flash_platform_data h2_nor_data = {
 126         .map_name       = "cfi_probe",
 127         .width          = 2,
 128         .parts          = h2_nor_partitions,
 129         .nr_parts       = ARRAY_SIZE(h2_nor_partitions),
 130 };
 131
 132 static struct resource h2_nor_resource = {
 133         /* This is on CS3, wherever it's mapped */
 134         .flags          = IORESOURCE_MEM,
 135 };
 136
 137 static struct platform_device h2_nor_device = {
 138         .name           = "omapflash",
 139         .id             = 0,
 140         .dev            = {
 141                 .platform_data  = &h2_nor_data,
 142         },
 143         .num_resources  = 1,
 144         .resource       = &h2_nor_resource,
 145 };
 146
 147 static struct mtd_partition h2_nand_partitions[] = {
 148 #if 0
 149         /* REVISIT:  enable these partitions if you make NAND BOOT
 150          * work on your H2 (rev C or newer); published versions of
 151          * x-load only support P2 and H3.
 152          */
 153         {
 154                 .name           = "xloader",
 155                 .offset         = 0,
 156                 .size           = 64 * 1024,
 157                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 158         },
 159         {
 160                 .name           = "bootloader",
 161                 .offset         = MTDPART_OFS_APPEND,
 162                 .size           = 256 * 1024,
 163                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 164         },
 165         {
 166                 .name           = "params",
 167                 .offset         = MTDPART_OFS_APPEND,
 168                 .size           = 192 * 1024,
 169         },
 170         {
 171                 .name           = "kernel",
 172                 .offset         = MTDPART_OFS_APPEND,
 173                 .size           = 2 * SZ_1M,
 174         },
 175 #endif
 176         {
 177                 .name           = "filesystem",
 178                 .size           = MTDPART_SIZ_FULL,
 179                 .offset         = MTDPART_OFS_APPEND,
 180         },
 181 };
 182
 183 /* dip switches control NAND chip access:  8 bit, 16 bit, or neither */
 184 static struct omap_nand_platform_data h2_nand_data = {
 185         .options        = NAND_SAMSUNG_LP_OPTIONS,
 186         .parts          = h2_nand_partitions,
 187         .nr_parts       = ARRAY_SIZE(h2_nand_partitions),
 188 };
 189
 190 static struct resource h2_nand_resource = {
 191         .flags          = IORESOURCE_MEM,
 192 };
 193
 194 static struct platform_device h2_nand_device = {
 195         .name           = "omapnand",
 196         .id             = 0,
 197         .dev            = {
 198                 .platform_data  = &h2_nand_data,
 199         },
 200         .num_resources  = 1,
 201         .resource       = &h2_nand_resource,
 202 };
 203
 204 static struct resource h2_smc91x_resources[] = {
 205         [0] = {
 206                 .start  = OMAP1610_ETHR_START,          /* Physical */
 207                 .end    = OMAP1610_ETHR_START + 0xf,
 208                 .flags  = IORESOURCE_MEM,
 209         },
 210         [1] = {
 211                 .start  = OMAP_GPIO_IRQ(0),
 212                 .end    = OMAP_GPIO_IRQ(0),
 213                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 214         },
 215 };
 216
 217 static struct platform_device h2_smc91x_device = {
 218         .name           = "smc91x",
 219         .id             = 0,
 220         .num_resources  = ARRAY_SIZE(h2_smc91x_resources),
 221         .resource       = h2_smc91x_resources,
 222 };
 223
 224 static struct resource h2_kp_resources[] = {
 225         [0] = {
 226                 .start  = INT_KEYBOARD,
 227                 .end    = INT_KEYBOARD,
 228                 .flags  = IORESOURCE_IRQ,
 229         },
 230 };
 231
 232 static struct omap_kp_platform_data h2_kp_data = {
 233         .rows           = 8,
 234         .cols           = 8,
 235         .keymap         = h2_keymap,
 236         .keymapsize     = ARRAY_SIZE(h2_keymap),
 237         .rep            = 1,
 238         .delay          = 9,
 239         .dbounce        = 1,
 240 };
 241
 242 static struct platform_device h2_kp_device = {
 243         .name           = "omap-keypad",
 244         .id             = -1,
 245         .dev            = {
 246                 .platform_data = &h2_kp_data,
 247         },
 248         .num_resources  = ARRAY_SIZE(h2_kp_resources),
 249         .resource       = h2_kp_resources,
 250 };
 251
 252 #define H2_IRDA_FIRSEL_GPIO_PIN 17
 253
 254 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
 255 static int h2_transceiver_mode(struct device *dev, int state)
 256 {
 257         /* SIR when low, else MIR/FIR when HIGH */
 258         gpio_set_value(H2_IRDA_FIRSEL_GPIO_PIN, !(state & IR_SIRMODE));
 259         return 0;
 260 }
 261 #endif
 262
 263 static struct omap_irda_config h2_irda_data = {
 264         .transceiver_cap        = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
 265         .rx_channel             = OMAP_DMA_UART3_RX,
 266         .tx_channel             = OMAP_DMA_UART3_TX,
 267         .dest_start             = UART3_THR,
 268         .src_start              = UART3_RHR,
 269         .tx_trigger             = 0,
 270         .rx_trigger             = 0,
 271 };
 272
 273 static struct resource h2_irda_resources[] = {
 274         [0] = {
 275                 .start  = INT_UART3,
 276                 .end    = INT_UART3,
 277                 .flags  = IORESOURCE_IRQ,
 278         },
 279 };
 280
 281 static u64 irda_dmamask = 0xffffffff;
 282
 283 static struct platform_device h2_irda_device = {
 284         .name           = "omapirda",
 285         .id             = 0,
 286         .dev            = {
 287                 .platform_data  = &h2_irda_data,
 288                 .dma_mask       = &irda_dmamask,
 289         },
 290         .num_resources  = ARRAY_SIZE(h2_irda_resources),
 291         .resource       = h2_irda_resources,
 292 };
 293
 294 static struct platform_device h2_lcd_device = {
 295         .name           = "lcd_h2",
 296         .id             = -1,
 297 };
 298
 299 struct {
 300         struct clk      *mclk;
 301         int             initialized;
 302 } h2_tsc2101;
 303
 304 #define TSC2101_MUX_MCLK_ON     R10_1610_MCLK_ON
 305 #define TSC2101_MUX_MCLK_OFF    R10_1610_MCLK_OFF
 306
 307 static void h2_lcd_dev_init(struct spi_device *tsc2101)
 308 {
 309         /* The LCD is connected to the GPIO pins of the TSC2101, so
 310          * we have to tie them here. We can also register the LCD driver
 311          * first only here, where we know that the TSC driver is ready.
 312          */
 313
 314         h2_lcd_device.dev.platform_data = tsc2101;
 315         platform_device_register(&h2_lcd_device);
 316 }
 317
 318 static int h2_tsc2101_init(struct spi_device *spi)
 319 {
 320         int r;
 321
 322         if (h2_tsc2101.initialized) {
 323                 printk(KERN_ERR "tsc2101: already initialized\n");
 324                 return -ENODEV;
 325         }
 326
 327         /* Get the MCLK */
 328         h2_tsc2101.mclk = clk_get(&spi->dev, "mclk");
 329         if (IS_ERR(h2_tsc2101.mclk)) {
 330                 dev_err(&spi->dev, "unable to get the clock MCLK\n");
 331                 return PTR_ERR(h2_tsc2101.mclk);
 332         }
 333         if ((r = clk_set_rate(h2_tsc2101.mclk, 12000000)) < 0) {
 334                 dev_err(&spi->dev, "unable to set rate to the MCLK\n");
 335                 goto err;
 336         }
 337
 338         omap_cfg_reg(TSC2101_MUX_MCLK_OFF);
 339         omap_cfg_reg(N15_1610_UWIRE_CS1);
 340
 341         h2_lcd_dev_init(spi);
 342
 343         return 0;
 344 err:
 345         clk_put(h2_tsc2101.mclk);
 346         return r;
 347 }
 348
 349 static void h2_tsc2101_cleanup(struct spi_device *spi)
 350 {
 351         clk_put(h2_tsc2101.mclk);
 352         omap_cfg_reg(TSC2101_MUX_MCLK_OFF);
 353 }
 354
 355 static void h2_tsc2101_enable_mclk(struct spi_device *spi)
 356 {
 357         omap_cfg_reg(TSC2101_MUX_MCLK_ON);
 358         clk_enable(h2_tsc2101.mclk);
 359 }
 360
 361 static void h2_tsc2101_disable_mclk(struct spi_device *spi)
 362 {
 363         clk_disable(h2_tsc2101.mclk);
 364         omap_cfg_reg(R10_1610_MCLK_OFF);
 365 }
 366
 367 static struct tsc2101_platform_data h2_tsc2101_platform_data = {
 368         .init           = h2_tsc2101_init,
 369         .cleanup        = h2_tsc2101_cleanup,
 370         .enable_mclk    = h2_tsc2101_enable_mclk,
 371         .disable_mclk   = h2_tsc2101_disable_mclk,
 372 };
 373
 374 static struct spi_board_info h2_spi_board_info[] __initdata = {
 375         [0] = {
 376                 .modalias       = "tsc2101",
 377                 .bus_num        = 2,
 378                 .chip_select    = 1,
 379                 .max_speed_hz   = 16000000,
 380                 .platform_data  = &h2_tsc2101_platform_data,
 381         },
 382 };
 383
 384 static struct platform_device *h2_devices[] __initdata = {
 385         &h2_nor_device,
 386         &h2_nand_device,
 387         &h2_smc91x_device,
 388         &h2_irda_device,
 389         &h2_kp_device,
 390 };
 391
 392 static void __init h2_init_smc91x(void)
 393 {
 394         if (gpio_request(0, "SMC91x irq") < 0) {
 395                 printk("Error requesting gpio 0 for smc91x irq\n");
 396                 return;
 397         }
 398 }
 399
 400 static int tps_setup(struct i2c_client *client, void *context)
 401 {
 402         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V |
 403                                 TPS_LDO1_ENABLE | TPS_VLDO1_3_0V);
 404
 405         return 0;
 406 }
 407
 408 static struct tps65010_board tps_board = {
 409         .base           = H2_TPS_GPIO_BASE,
 410         .outmask        = 0x0f,
 411         .setup          = tps_setup,
 412 };
 413
 414 static struct i2c_board_info __initdata h2_i2c_board_info[] = {
 415         {
 416                 I2C_BOARD_INFO("tps65010", 0x48),
 417                 .irq            = OMAP_GPIO_IRQ(58),
 418                 .platform_data  = &tps_board,
 419         }, {
 420                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
 421                 .irq            = OMAP_GPIO_IRQ(2),
 422         },
 423 };
 424
 425 static void __init h2_init_irq(void)
 426 {
 427         omap1_init_common_hw();
 428         omap_init_irq();
 429         omap_gpio_init();
 430         h2_init_smc91x();
 431 }
 432
 433 static struct omap_usb_config h2_usb_config __initdata = {
 434         /* usb1 has a Mini-AB port and external isp1301 transceiver */
 435         .otg            = 2,
 436
 437 #ifdef  CONFIG_USB_GADGET_OMAP
 438         .hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
 439         /* .hmc_mode    = 21,*/ /* 0:host(off) 1:dev(loopback) 2:host(loopback) */
 440 #elif   defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 441         /* needs OTG cable, or NONSTANDARD (B-to-MiniB) */
 442         .hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
 443 #endif
 444
 445         .pins[1]        = 3,
 446 };
 447
 448 static struct omap_uart_config h2_uart_config __initdata = {
 449         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 450 };
 451
 452 static struct omap_lcd_config h2_lcd_config __initdata = {
 453         .ctrl_name      = "internal",
 454 };
 455
 456 static struct omap_board_config_kernel h2_config[] __initdata = {
 457         { OMAP_TAG_USB,         &h2_usb_config },
 458         { OMAP_TAG_UART,        &h2_uart_config },
 459         { OMAP_TAG_LCD,         &h2_lcd_config },
 460 };
 461
 462 #define H2_NAND_RB_GPIO_PIN     62
 463
 464 static int h2_nand_dev_ready(struct omap_nand_platform_data *data)
 465 {
 466         return gpio_get_value(H2_NAND_RB_GPIO_PIN);
 467 }
 468
 469 static void __init h2_init(void)
 470 {
 471         /* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
 472          * to address 0 by a dip switch), NAND on CS2B.  The NAND driver will
 473          * notice whether a NAND chip is enabled at probe time.
 474          *
 475          * FIXME revC boards (and H3) support NAND-boot, with a dip switch to
 476          * put NOR on CS2B and NAND (which on H2 may be 16bit) on CS3.  Try
 477          * detecting that in code here, to avoid probing every possible flash
 478          * configuration...
 479          */
 480         h2_nor_resource.end = h2_nor_resource.start = omap_cs3_phys();
 481         h2_nor_resource.end += SZ_32M - 1;
 482
 483         h2_nand_resource.end = h2_nand_resource.start = OMAP_CS2B_PHYS;
 484         h2_nand_resource.end += SZ_4K - 1;
 485         if (gpio_request(H2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
 486                 BUG();
 487         gpio_direction_input(H2_NAND_RB_GPIO_PIN);
 488
 489         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 490         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 491
 492         /* MMC:  card detect and WP */
 493         /* omap_cfg_reg(U19_ARMIO1); */         /* CD */
 494         omap_cfg_reg(BALLOUT_V8_ARMIO3);        /* WP */
 495
 496         /* Irda */
 497 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
 498         omap_writel(omap_readl(FUNC_MUX_CTRL_A) | 7, FUNC_MUX_CTRL_A);
 499         if (gpio_request(H2_IRDA_FIRSEL_GPIO_PIN, "IRDA mode") < 0)
 500                 BUG();
 501         gpio_direction_output(H2_IRDA_FIRSEL_GPIO_PIN, 0);
 502         h2_irda_data.transceiver_mode = h2_transceiver_mode;
 503 #endif
 504
 505         platform_add_devices(h2_devices, ARRAY_SIZE(h2_devices));
 506         spi_register_board_info(h2_spi_board_info,
 507                                 ARRAY_SIZE(h2_spi_board_info));
 508         omap_board_config = h2_config;
 509         omap_board_config_size = ARRAY_SIZE(h2_config);
 510         omap_serial_init();
 511         omap_register_i2c_bus(1, 100, h2_i2c_board_info,
 512                               ARRAY_SIZE(h2_i2c_board_info));
 513         h2_mmc_init();
 514 }
 515
 516 static void __init h2_map_io(void)
 517 {
 518         omap1_map_common_io();
 519 }
 520
 521 MACHINE_START(OMAP_H2, "TI-H2")
 522         /* Maintainer: Imre Deak <imre.deak@nokia.com> */
 523         .phys_io        = 0xfff00000,
 524         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 525         .boot_params    = 0x10000100,
 526         .map_io         = h2_map_io,
 527         .init_irq       = h2_init_irq,
 528         .init_machine   = h2_init,
 529         .timer          = &omap_timer,
 530 MACHINE_END