arch/arm/mach-omap1/board-h3.c

   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
  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/common.h>
  45
  46 extern int omap_gpio_init(void);
  47
  48 static struct mtd_partition nor_partitions[] = {
  49         /* bootloader (U-Boot, etc) in first sector */
  50         {
  51               .name             = "bootloader",
  52               .offset           = 0,
  53               .size             = SZ_128K,
  54               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  55         },
  56         /* bootloader params in the next sector */
  57         {
  58               .name             = "params",
  59               .offset           = MTDPART_OFS_APPEND,
  60               .size             = SZ_128K,
  61               .mask_flags       = 0,
  62         },
  63         /* kernel */
  64         {
  65               .name             = "kernel",
  66               .offset           = MTDPART_OFS_APPEND,
  67               .size             = SZ_2M,
  68               .mask_flags       = 0
  69         },
  70         /* file system */
  71         {
  72               .name             = "filesystem",
  73               .offset           = MTDPART_OFS_APPEND,
  74               .size             = MTDPART_SIZ_FULL,
  75               .mask_flags       = 0
  76         }
  77 };
  78
  79 static struct flash_platform_data nor_data = {
  80         .map_name       = "cfi_probe",
  81         .width          = 2,
  82         .parts          = nor_partitions,
  83         .nr_parts       = ARRAY_SIZE(nor_partitions),
  84 };
  85
  86 static struct resource nor_resource = {
  87         /* This is on CS3, wherever it's mapped */
  88         .flags          = IORESOURCE_MEM,
  89 };
  90
  91 static struct platform_device nor_device = {
  92         .name           = "omapflash",
  93         .id             = 0,
  94         .dev            = {
  95                 .platform_data  = &nor_data,
  96         },
  97         .num_resources  = 1,
  98         .resource       = &nor_resource,
  99 };
 100
 101 static struct mtd_partition nand_partitions[] = {
 102 #if 0
 103         /* REVISIT: enable these partitions if you make NAND BOOT work */
 104         {
 105                 .name           = "xloader",
 106                 .offset         = 0,
 107                 .size           = 64 * 1024,
 108                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 109         },
 110         {
 111                 .name           = "bootloader",
 112                 .offset         = MTDPART_OFS_APPEND,
 113                 .size           = 256 * 1024,
 114                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 115         },
 116         {
 117                 .name           = "params",
 118                 .offset         = MTDPART_OFS_APPEND,
 119                 .size           = 192 * 1024,
 120         },
 121         {
 122                 .name           = "kernel",
 123                 .offset         = MTDPART_OFS_APPEND,
 124                 .size           = 2 * SZ_1M,
 125         },
 126 #endif
 127         {
 128                 .name           = "filesystem",
 129                 .size           = MTDPART_SIZ_FULL,
 130                 .offset         = MTDPART_OFS_APPEND,
 131         },
 132 };
 133
 134 /* dip switches control NAND chip access:  8 bit, 16 bit, or neither */
 135 static struct nand_platform_data nand_data = {
 136         .options        = NAND_SAMSUNG_LP_OPTIONS,
 137         .parts          = nand_partitions,
 138         .nr_parts       = ARRAY_SIZE(nand_partitions),
 139 };
 140
 141 static struct resource nand_resource = {
 142         .flags          = IORESOURCE_MEM,
 143 };
 144
 145 static struct platform_device nand_device = {
 146         .name           = "omapnand",
 147         .id             = 0,
 148         .dev            = {
 149                 .platform_data  = &nand_data,
 150         },
 151         .num_resources  = 1,
 152         .resource       = &nand_resource,
 153 };
 154
 155 static struct resource smc91x_resources[] = {
 156         [0] = {
 157                 .start  = OMAP1710_ETHR_START,          /* Physical */
 158                 .end    = OMAP1710_ETHR_START + 0xf,
 159                 .flags  = IORESOURCE_MEM,
 160         },
 161         [1] = {
 162                 .start  = OMAP_GPIO_IRQ(40),
 163                 .end    = OMAP_GPIO_IRQ(40),
 164                 .flags  = IORESOURCE_IRQ,
 165         },
 166 };
 167
 168 static struct platform_device smc91x_device = {
 169         .name           = "smc91x",
 170         .id             = 0,
 171         .num_resources  = ARRAY_SIZE(smc91x_resources),
 172         .resource       = smc91x_resources,
 173 };
 174
 175 #define GPTIMER_BASE            0xFFFB1400
 176 #define GPTIMER_REGS(x) (0xFFFB1400 + (x * 0x800))
 177 #define GPTIMER_REGS_SIZE       0x46
 178
 179 static struct resource intlat_resources[] = {
 180         [0] = {
 181                 .start  = GPTIMER_REGS(0),            /* Physical */
 182                 .end    = GPTIMER_REGS(0) + GPTIMER_REGS_SIZE,
 183                 .flags  = IORESOURCE_MEM,
 184         },
 185         [1] = {
 186                 .start  = INT_1610_GPTIMER1,
 187                 .end    = INT_1610_GPTIMER1,
 188                 .flags  = IORESOURCE_IRQ,
 189         },
 190 };
 191
 192 static struct platform_device intlat_device = {
 193         .name      = "omap_intlat",
 194         .id          = 0,
 195         .num_resources  = ARRAY_SIZE(intlat_resources),
 196         .resource       = intlat_resources,
 197 };
 198
 199 /* Select between the IrDA and aGPS module
 200  */
 201 static int h3_select_irda(struct device *dev, int state)
 202 {
 203         unsigned char expa;
 204         int err = 0;
 205
 206         if ((err = read_gpio_expa(&expa, 0x26))) {
 207                 printk(KERN_ERR "Error reading from I/O EXPANDER \n");
 208                 return err;
 209         }
 210
 211         /* 'P6' enable/disable IRDA_TX and IRDA_RX */
 212         if (state & IR_SEL) { /* IrDA */
 213                 if ((err = write_gpio_expa(expa | 0x40, 0x26))) {
 214                         printk(KERN_ERR "Error writing to I/O EXPANDER \n");
 215                         return err;
 216                 }
 217         } else {
 218                 if ((err = write_gpio_expa(expa & ~0x40, 0x26))) {
 219                         printk(KERN_ERR "Error writing to I/O EXPANDER \n");
 220                         return err;
 221                 }
 222         }
 223         return err;
 224 }
 225
 226 static void set_trans_mode(void *data)
 227 {
 228         int *mode = data;
 229         unsigned char expa;
 230         int err = 0;
 231
 232         if ((err = read_gpio_expa(&expa, 0x27)) != 0) {
 233                 printk(KERN_ERR "Error reading from I/O expander\n");
 234         }
 235
 236         expa &= ~0x03;
 237
 238         if (*mode & IR_SIRMODE) {
 239                 expa |= 0x01;
 240         } else { /* MIR/FIR */
 241                 expa |= 0x03;
 242         }
 243
 244         if ((err = write_gpio_expa(expa, 0x27)) != 0) {
 245                 printk(KERN_ERR "Error writing to I/O expander\n");
 246         }
 247 }
 248
 249 static int h3_transceiver_mode(struct device *dev, int mode)
 250 {
 251         struct omap_irda_config *irda_config = dev->platform_data;
 252
 253         cancel_delayed_work(&irda_config->gpio_expa);
 254         PREPARE_WORK(&irda_config->gpio_expa, set_trans_mode, &mode);
 255         schedule_work(&irda_config->gpio_expa);
 256
 257         return 0;
 258 }
 259
 260 static struct omap_irda_config h3_irda_data = {
 261         .transceiver_cap        = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
 262         .transceiver_mode       = h3_transceiver_mode,
 263         .select_irda            = h3_select_irda,
 264 };
 265
 266 static struct resource h3_irda_resources[] = {
 267         [0] = {
 268                 .start  = INT_UART3,
 269                 .end    = INT_UART3,
 270                 .flags  = IORESOURCE_IRQ,
 271         },
 272 };
 273 static struct platform_device h3_irda_device = {
 274         .name           = "omapirda",
 275         .id             = 0,
 276         .dev            = {
 277                 .platform_data  = &h3_irda_data,
 278         },
 279         .num_resources  = ARRAY_SIZE(h3_irda_resources),
 280         .resource       = h3_irda_resources,
 281 };
 282
 283 static struct platform_device *devices[] __initdata = {
 284         &nor_device,
 285         &nand_device,
 286         &smc91x_device,
 287         &intlat_device,
 288         &h3_irda_device,
 289 };
 290
 291 static struct omap_usb_config h3_usb_config __initdata = {
 292         /* usb1 has a Mini-AB port and external isp1301 transceiver */
 293         .otg        = 2,
 294
 295 #ifdef CONFIG_USB_GADGET_OMAP
 296         .hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
 297 #elif  defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 298         /* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
 299         .hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
 300 #endif
 301
 302         .pins[1]        = 3,
 303 };
 304
 305 static struct omap_mmc_config h3_mmc_config __initdata = {
 306         .mmc[0] = {
 307                 .enabled        = 1,
 308                 .power_pin      = -1,   /* tps65010 GPIO4 */
 309                 .switch_pin     = OMAP_MPUIO(1),
 310         },
 311 };
 312
 313 static struct omap_uart_config h3_uart_config __initdata = {
 314         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 315 };
 316
 317 static struct omap_lcd_config h3_lcd_config __initdata = {
 318         .panel_name     = "h3",
 319         .ctrl_name      = "internal",
 320 };
 321
 322 static struct omap_board_config_kernel h3_config[] = {
 323         { OMAP_TAG_USB,         &h3_usb_config },
 324         { OMAP_TAG_MMC,         &h3_mmc_config },
 325         { OMAP_TAG_UART,        &h3_uart_config },
 326         { OMAP_TAG_LCD,         &h3_lcd_config },
 327 };
 328
 329 #define H3_NAND_RB_GPIO_PIN     10
 330
 331 static int nand_dev_ready(struct nand_platform_data *data)
 332 {
 333         return omap_get_gpio_datain(H3_NAND_RB_GPIO_PIN);
 334 }
 335
 336 static void __init h3_init(void)
 337 {
 338         /* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
 339          * to address 0 by a dip switch), NAND on CS2B.  The NAND driver will
 340          * notice whether a NAND chip is enabled at probe time.
 341          *
 342          * H3 support NAND-boot, with a dip switch to put NOR on CS2B and NAND
 343          * (which on H2 may be 16bit) on CS3.  Try detecting that in code here,
 344          * to avoid probing every possible flash configuration...
 345          */
 346         nor_resource.end = nor_resource.start = omap_cs3_phys();
 347         nor_resource.end += SZ_32M - 1;
 348
 349         nand_resource.end = nand_resource.start = OMAP_CS2B_PHYS;
 350         nand_resource.end += SZ_4K - 1;
 351         if (!(omap_request_gpio(H3_NAND_RB_GPIO_PIN)))
 352                 nand_data.dev_ready = nand_dev_ready;
 353
 354         /* GPIO10 Func_MUX_CTRL reg bit 29:27, Configure V2 to mode1 as GPIO */
 355         /* GPIO10 pullup/down register, Enable pullup on GPIO10 */
 356         omap_cfg_reg(V2_1710_GPIO10);
 357
 358         platform_add_devices(devices, ARRAY_SIZE(devices));
 359         omap_board_config = h3_config;
 360         omap_board_config_size = ARRAY_SIZE(h3_config);
 361         omap_serial_init();
 362 }
 363
 364 static void __init h3_init_smc91x(void)
 365 {
 366         omap_cfg_reg(W15_1710_GPIO40);
 367         if (omap_request_gpio(40) < 0) {
 368                 printk("Error requesting gpio 40 for smc91x irq\n");
 369                 return;
 370         }
 371 }
 372
 373 void h3_init_irq(void)
 374 {
 375         omap1_init_common_hw();
 376         omap_init_irq();
 377         omap_gpio_init();
 378         h3_init_smc91x();
 379 }
 380
 381 static void __init h3_map_io(void)
 382 {
 383         omap1_map_common_io();
 384 }
 385
 386 MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
 387         /* Maintainer: Texas Instruments, Inc. */
 388         .phys_io        = 0xfff00000,
 389         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 390         .boot_params    = 0x10000100,
 391         .map_io         = h3_map_io,
 392         .init_irq       = h3_init_irq,
 393         .init_machine   = h3_init,
 394         .timer          = &omap_timer,
 395 MACHINE_END