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   1 /*
   2  * linux/arch/arm/mach-omap1/board-h3.c
   3  *
   4  * This file contains OMAP1710 H3 specific code.
   5  *
   6  * Copyright (C) 2004 Texas Instruments, Inc.
   7  * Copyright (C) 2002 MontaVista Software, Inc.
   8  * Copyright (C) 2001 RidgeRun, Inc.
   9  * Author: RidgeRun, Inc.
  10  *         Greg Lonnon (glonnon@ridgerun.com) or info@ridgerun.com
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #include <linux/types.h>
  18 #include <linux/init.h>
  19 #include <linux/major.h>
  20 #include <linux/kernel.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/errno.h>
  23 #include <linux/workqueue.h>
  24 #include <linux/mtd/mtd.h>
  25 #include <linux/mtd/nand.h>
  26 #include <linux/mtd/partitions.h>
  27 #include <linux/input.h>
  28
  29 #include <asm/setup.h>
  30 #include <asm/page.h>
  31 #include <asm/hardware.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/flash.h>
  35 #include <asm/mach/map.h>
  36
  37 #include <asm/arch/gpio.h>
  38 #include <asm/arch/gpioexpander.h>
  39 #include <asm/arch/irqs.h>
  40 #include <asm/arch/mux.h>
  41 #include <asm/arch/tc.h>
  42 #include <asm/arch/irda.h>
  43 #include <asm/arch/usb.h>
  44 #include <asm/arch/keypad.h>
  45 #include <asm/arch/dma.h>
  46 #include <asm/arch/common.h>
  47
  48 extern int omap_gpio_init(void);
  49
  50 static int h3_keymap[] = {
  51         KEY(0, 0, KEY_LEFT),
  52         KEY(0, 1, KEY_RIGHT),
  53         KEY(0, 2, KEY_3),
  54         KEY(0, 3, KEY_F10),
  55         KEY(0, 4, KEY_F5),
  56         KEY(0, 5, KEY_9),
  57         KEY(1, 0, KEY_DOWN),
  58         KEY(1, 1, KEY_UP),
  59         KEY(1, 2, KEY_2),
  60         KEY(1, 3, KEY_F9),
  61         KEY(1, 4, KEY_F7),
  62         KEY(1, 5, KEY_0),
  63         KEY(2, 0, KEY_ENTER),
  64         KEY(2, 1, KEY_6),
  65         KEY(2, 2, KEY_1),
  66         KEY(2, 3, KEY_F2),
  67         KEY(2, 4, KEY_F6),
  68         KEY(2, 5, KEY_HOME),
  69         KEY(3, 0, KEY_8),
  70         KEY(3, 1, KEY_5),
  71         KEY(3, 2, KEY_F12),
  72         KEY(3, 3, KEY_F3),
  73         KEY(3, 4, KEY_F8),
  74         KEY(3, 5, KEY_END),
  75         KEY(4, 0, KEY_7),
  76         KEY(4, 1, KEY_4),
  77         KEY(4, 2, KEY_F11),
  78         KEY(4, 3, KEY_F1),
  79         KEY(4, 4, KEY_F4),
  80         KEY(4, 5, KEY_ESC),
  81         KEY(5, 0, KEY_F13),
  82         KEY(5, 1, KEY_F14),
  83         KEY(5, 2, KEY_F15),
  84         KEY(5, 3, KEY_F16),
  85         KEY(5, 4, KEY_SLEEP),
  86         0
  87 };
  88
  89
  90 static struct mtd_partition nor_partitions[] = {
  91         /* bootloader (U-Boot, etc) in first sector */
  92         {
  93               .name             = "bootloader",
  94               .offset           = 0,
  95               .size             = SZ_128K,
  96               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  97         },
  98         /* bootloader params in the next sector */
  99         {
 100               .name             = "params",
 101               .offset           = MTDPART_OFS_APPEND,
 102               .size             = SZ_128K,
 103               .mask_flags       = 0,
 104         },
 105         /* kernel */
 106         {
 107               .name             = "kernel",
 108               .offset           = MTDPART_OFS_APPEND,
 109               .size             = SZ_2M,
 110               .mask_flags       = 0
 111         },
 112         /* file system */
 113         {
 114               .name             = "filesystem",
 115               .offset           = MTDPART_OFS_APPEND,
 116               .size             = MTDPART_SIZ_FULL,
 117               .mask_flags       = 0
 118         }
 119 };
 120
 121 static struct flash_platform_data nor_data = {
 122         .map_name       = "cfi_probe",
 123         .width          = 2,
 124         .parts          = nor_partitions,
 125         .nr_parts       = ARRAY_SIZE(nor_partitions),
 126 };
 127
 128 static struct resource nor_resource = {
 129         /* This is on CS3, wherever it's mapped */
 130         .flags          = IORESOURCE_MEM,
 131 };
 132
 133 static struct platform_device nor_device = {
 134         .name           = "omapflash",
 135         .id             = 0,
 136         .dev            = {
 137                 .platform_data  = &nor_data,
 138         },
 139         .num_resources  = 1,
 140         .resource       = &nor_resource,
 141 };
 142
 143 static struct mtd_partition nand_partitions[] = {
 144 #if 0
 145         /* REVISIT: enable these partitions if you make NAND BOOT work */
 146         {
 147                 .name           = "xloader",
 148                 .offset         = 0,
 149                 .size           = 64 * 1024,
 150                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 151         },
 152         {
 153                 .name           = "bootloader",
 154                 .offset         = MTDPART_OFS_APPEND,
 155                 .size           = 256 * 1024,
 156                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 157         },
 158         {
 159                 .name           = "params",
 160                 .offset         = MTDPART_OFS_APPEND,
 161                 .size           = 192 * 1024,
 162         },
 163         {
 164                 .name           = "kernel",
 165                 .offset         = MTDPART_OFS_APPEND,
 166                 .size           = 2 * SZ_1M,
 167         },
 168 #endif
 169         {
 170                 .name           = "filesystem",
 171                 .size           = MTDPART_SIZ_FULL,
 172                 .offset         = MTDPART_OFS_APPEND,
 173         },
 174 };
 175
 176 /* dip switches control NAND chip access:  8 bit, 16 bit, or neither */
 177 static struct nand_platform_data nand_data = {
 178         .options        = NAND_SAMSUNG_LP_OPTIONS,
 179         .parts          = nand_partitions,
 180         .nr_parts       = ARRAY_SIZE(nand_partitions),
 181 };
 182
 183 static struct resource nand_resource = {
 184         .flags          = IORESOURCE_MEM,
 185 };
 186
 187 static struct platform_device nand_device = {
 188         .name           = "omapnand",
 189         .id             = 0,
 190         .dev            = {
 191                 .platform_data  = &nand_data,
 192         },
 193         .num_resources  = 1,
 194         .resource       = &nand_resource,
 195 };
 196
 197 static struct resource smc91x_resources[] = {
 198         [0] = {
 199                 .start  = OMAP1710_ETHR_START,          /* Physical */
 200                 .end    = OMAP1710_ETHR_START + 0xf,
 201                 .flags  = IORESOURCE_MEM,
 202         },
 203         [1] = {
 204                 .start  = OMAP_GPIO_IRQ(40),
 205                 .end    = OMAP_GPIO_IRQ(40),
 206                 .flags  = IORESOURCE_IRQ,
 207         },
 208 };
 209
 210 static struct platform_device smc91x_device = {
 211         .name           = "smc91x",
 212         .id             = 0,
 213         .num_resources  = ARRAY_SIZE(smc91x_resources),
 214         .resource       = smc91x_resources,
 215 };
 216
 217 #define GPTIMER_BASE            0xFFFB1400
 218 #define GPTIMER_REGS(x) (0xFFFB1400 + (x * 0x800))
 219 #define GPTIMER_REGS_SIZE       0x46
 220
 221 static struct resource intlat_resources[] = {
 222         [0] = {
 223                 .start  = GPTIMER_REGS(0),            /* Physical */
 224                 .end    = GPTIMER_REGS(0) + GPTIMER_REGS_SIZE,
 225                 .flags  = IORESOURCE_MEM,
 226         },
 227         [1] = {
 228                 .start  = INT_1610_GPTIMER1,
 229                 .end    = INT_1610_GPTIMER1,
 230                 .flags  = IORESOURCE_IRQ,
 231         },
 232 };
 233
 234 static struct platform_device intlat_device = {
 235         .name      = "omap_intlat",
 236         .id          = 0,
 237         .num_resources  = ARRAY_SIZE(intlat_resources),
 238         .resource       = intlat_resources,
 239 };
 240
 241 static struct resource h3_kp_resources[] = {
 242         [0] = {
 243                 .start  = INT_KEYBOARD,
 244                 .end    = INT_KEYBOARD,
 245                 .flags  = IORESOURCE_IRQ,
 246         },
 247 };
 248
 249 static struct omap_kp_platform_data h3_kp_data = {
 250         .rows           = 8,
 251         .cols           = 8,
 252         .keymap         = h3_keymap,
 253         .keymapsize     = ARRAY_SIZE(h3_keymap),
 254         .rep            = 1,
 255         .delay          = 9,
 256         .dbounce        = 1,
 257 };
 258
 259 static struct platform_device h3_kp_device = {
 260         .name           = "omap-keypad",
 261         .id             = -1,
 262         .dev            = {
 263                 .platform_data = &h3_kp_data,
 264         },
 265         .num_resources  = ARRAY_SIZE(h3_kp_resources),
 266         .resource       = h3_kp_resources,
 267 };
 268
 269
 270 /* Select between the IrDA and aGPS module
 271  */
 272 static int h3_select_irda(struct device *dev, int state)
 273 {
 274         unsigned char expa;
 275         int err = 0;
 276
 277         if ((err = read_gpio_expa(&expa, 0x26))) {
 278                 printk(KERN_ERR "Error reading from I/O EXPANDER \n");
 279                 return err;
 280         }
 281
 282         /* 'P6' enable/disable IRDA_TX and IRDA_RX */
 283         if (state & IR_SEL) { /* IrDA */
 284                 if ((err = write_gpio_expa(expa | 0x40, 0x26))) {
 285                         printk(KERN_ERR "Error writing to I/O EXPANDER \n");
 286                         return err;
 287                 }
 288         } else {
 289                 if ((err = write_gpio_expa(expa & ~0x40, 0x26))) {
 290                         printk(KERN_ERR "Error writing to I/O EXPANDER \n");
 291                         return err;
 292                 }
 293         }
 294         return err;
 295 }
 296
 297 static void set_trans_mode(void *data)
 298 {
 299         int *mode = data;
 300         unsigned char expa;
 301         int err = 0;
 302
 303         if ((err = read_gpio_expa(&expa, 0x27)) != 0) {
 304                 printk(KERN_ERR "Error reading from I/O expander\n");
 305         }
 306
 307         expa &= ~0x03;
 308
 309         if (*mode & IR_SIRMODE) {
 310                 expa |= 0x01;
 311         } else { /* MIR/FIR */
 312                 expa |= 0x03;
 313         }
 314
 315         if ((err = write_gpio_expa(expa, 0x27)) != 0) {
 316                 printk(KERN_ERR "Error writing to I/O expander\n");
 317         }
 318 }
 319
 320 static int h3_transceiver_mode(struct device *dev, int mode)
 321 {
 322         struct omap_irda_config *irda_config = dev->platform_data;
 323
 324         cancel_delayed_work(&irda_config->gpio_expa);
 325         PREPARE_WORK(&irda_config->gpio_expa, set_trans_mode, &mode);
 326 #error this is not permitted - mode is an argument variable
 327         schedule_delayed_work(&irda_config->gpio_expa, 0);
 328
 329         return 0;
 330 }
 331
 332 static struct omap_irda_config h3_irda_data = {
 333         .transceiver_cap        = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
 334         .transceiver_mode       = h3_transceiver_mode,
 335         .select_irda            = h3_select_irda,
 336         .rx_channel             = OMAP_DMA_UART3_RX,
 337         .tx_channel             = OMAP_DMA_UART3_TX,
 338         .dest_start             = UART3_THR,
 339         .src_start              = UART3_RHR,
 340         .tx_trigger             = 0,
 341         .rx_trigger             = 0,
 342 };
 343
 344 static struct resource h3_irda_resources[] = {
 345         [0] = {
 346                 .start  = INT_UART3,
 347                 .end    = INT_UART3,
 348                 .flags  = IORESOURCE_IRQ,
 349         },
 350 };
 351
 352 static struct platform_device h3_irda_device = {
 353         .name           = "omapirda",
 354         .id             = 0,
 355         .dev            = {
 356                 .platform_data  = &h3_irda_data,
 357         },
 358         .num_resources  = ARRAY_SIZE(h3_irda_resources),
 359         .resource       = h3_irda_resources,
 360 };
 361
 362 static struct platform_device h3_lcd_device = {
 363         .name           = "lcd_h3",
 364         .id             = -1,
 365 };
 366
 367 static struct platform_device *devices[] __initdata = {
 368         &nor_device,
 369         &nand_device,
 370         &smc91x_device,
 371         &intlat_device,
 372         &h3_irda_device,
 373         &h3_kp_device,
 374         &h3_lcd_device,
 375 };
 376
 377 static struct omap_usb_config h3_usb_config __initdata = {
 378         /* usb1 has a Mini-AB port and external isp1301 transceiver */
 379         .otg        = 2,
 380
 381 #ifdef CONFIG_USB_GADGET_OMAP
 382         .hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
 383 #elif  defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 384         /* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
 385         .hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
 386 #endif
 387
 388         .pins[1]        = 3,
 389 };
 390
 391 static struct omap_mmc_config h3_mmc_config __initdata = {
 392         .mmc[0] = {
 393                 .enabled        = 1,
 394                 .power_pin      = -1,   /* tps65010 GPIO4 */
 395                 .switch_pin     = OMAP_MPUIO(1),
 396         },
 397 };
 398
 399 static struct omap_uart_config h3_uart_config __initdata = {
 400         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 401 };
 402
 403 static struct omap_lcd_config h3_lcd_config __initdata = {
 404         .ctrl_name      = "internal",
 405 };
 406
 407 static struct omap_board_config_kernel h3_config[] = {
 408         { OMAP_TAG_USB,         &h3_usb_config },
 409         { OMAP_TAG_MMC,         &h3_mmc_config },
 410         { OMAP_TAG_UART,        &h3_uart_config },
 411         { OMAP_TAG_LCD,         &h3_lcd_config },
 412 };
 413
 414 #define H3_NAND_RB_GPIO_PIN     10
 415
 416 static int nand_dev_ready(struct nand_platform_data *data)
 417 {
 418         return omap_get_gpio_datain(H3_NAND_RB_GPIO_PIN);
 419 }
 420
 421 static void __init h3_init(void)
 422 {
 423         /* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
 424          * to address 0 by a dip switch), NAND on CS2B.  The NAND driver will
 425          * notice whether a NAND chip is enabled at probe time.
 426          *
 427          * H3 support NAND-boot, with a dip switch to put NOR on CS2B and NAND
 428          * (which on H2 may be 16bit) on CS3.  Try detecting that in code here,
 429          * to avoid probing every possible flash configuration...
 430          */
 431         nor_resource.end = nor_resource.start = omap_cs3_phys();
 432         nor_resource.end += SZ_32M - 1;
 433
 434         nand_resource.end = nand_resource.start = OMAP_CS2B_PHYS;
 435         nand_resource.end += SZ_4K - 1;
 436         if (!(omap_request_gpio(H3_NAND_RB_GPIO_PIN)))
 437                 nand_data.dev_ready = nand_dev_ready;
 438
 439         /* GPIO10 Func_MUX_CTRL reg bit 29:27, Configure V2 to mode1 as GPIO */
 440         /* GPIO10 pullup/down register, Enable pullup on GPIO10 */
 441         omap_cfg_reg(V2_1710_GPIO10);
 442
 443         platform_add_devices(devices, ARRAY_SIZE(devices));
 444         omap_board_config = h3_config;
 445         omap_board_config_size = ARRAY_SIZE(h3_config);
 446         omap_serial_init();
 447 }
 448
 449 static void __init h3_init_smc91x(void)
 450 {
 451         omap_cfg_reg(W15_1710_GPIO40);
 452         if (omap_request_gpio(40) < 0) {
 453                 printk("Error requesting gpio 40 for smc91x irq\n");
 454                 return;
 455         }
 456 }
 457
 458 void h3_init_irq(void)
 459 {
 460         omap1_init_common_hw();
 461         omap_init_irq();
 462         omap_gpio_init();
 463         h3_init_smc91x();
 464 }
 465
 466 static void __init h3_map_io(void)
 467 {
 468         omap1_map_common_io();
 469 }
 470
 471 MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
 472         /* Maintainer: Texas Instruments, Inc. */
 473         .phys_io        = 0xfff00000,
 474         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 475         .boot_params    = 0x10000100,
 476         .map_io         = h3_map_io,
 477         .init_irq       = h3_init_irq,
 478         .init_machine   = h3_init,
 479         .timer          = &omap_timer,
 480 MACHINE_END