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