release/src-rt-6.x/linux/linux-2.6/arch/arm/mach-omap2/board-h4.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-h4.c
   3  *
   4  * Copyright (C) 2005 Nokia Corporation
   5  * Author: Paul Mundt <paul.mundt@nokia.com>
   6  *
   7  * Modified from mach-omap/omap1/board-generic.c
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/partitions.h>
  19 #include <linux/delay.h>
  20 #include <linux/workqueue.h>
  21 #include <linux/input.h>
  22
  23 #include <asm/hardware.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27 #include <asm/mach/flash.h>
  28
  29 #include <asm/arch/gpio.h>
  30 #include <asm/arch/gpioexpander.h>
  31 #include <asm/arch/mux.h>
  32 #include <asm/arch/usb.h>
  33 #include <asm/arch/irda.h>
  34 #include <asm/arch/board.h>
  35 #include <asm/arch/common.h>
  36 #include <asm/arch/keypad.h>
  37 #include <asm/arch/menelaus.h>
  38 #include <asm/arch/dma.h>
  39 #include "prcm-regs.h"
  40
  41 #include <asm/io.h>
  42
  43 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
  44 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
  45
  46 static int h4_keymap[] = {
  47         KEY(0, 0, KEY_LEFT),
  48         KEY(0, 1, KEY_RIGHT),
  49         KEY(0, 2, KEY_A),
  50         KEY(0, 3, KEY_B),
  51         KEY(0, 4, KEY_C),
  52         KEY(1, 0, KEY_DOWN),
  53         KEY(1, 1, KEY_UP),
  54         KEY(1, 2, KEY_E),
  55         KEY(1, 3, KEY_F),
  56         KEY(1, 4, KEY_G),
  57         KEY(2, 0, KEY_ENTER),
  58         KEY(2, 1, KEY_I),
  59         KEY(2, 2, KEY_J),
  60         KEY(2, 3, KEY_K),
  61         KEY(2, 4, KEY_3),
  62         KEY(3, 0, KEY_M),
  63         KEY(3, 1, KEY_N),
  64         KEY(3, 2, KEY_O),
  65         KEY(3, 3, KEY_P),
  66         KEY(3, 4, KEY_Q),
  67         KEY(4, 0, KEY_R),
  68         KEY(4, 1, KEY_4),
  69         KEY(4, 2, KEY_T),
  70         KEY(4, 3, KEY_U),
  71         KEY(4, 4, KEY_ENTER),
  72         KEY(5, 0, KEY_V),
  73         KEY(5, 1, KEY_W),
  74         KEY(5, 2, KEY_L),
  75         KEY(5, 3, KEY_S),
  76         KEY(5, 4, KEY_ENTER),
  77         0
  78 };
  79
  80 static struct mtd_partition h4_partitions[] = {
  81         /* bootloader (U-Boot, etc) in first sector */
  82         {
  83               .name             = "bootloader",
  84               .offset           = 0,
  85               .size             = SZ_128K,
  86               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  87         },
  88         /* bootloader params in the next sector */
  89         {
  90               .name             = "params",
  91               .offset           = MTDPART_OFS_APPEND,
  92               .size             = SZ_128K,
  93               .mask_flags       = 0,
  94         },
  95         /* kernel */
  96         {
  97               .name             = "kernel",
  98               .offset           = MTDPART_OFS_APPEND,
  99               .size             = SZ_2M,
 100               .mask_flags       = 0
 101         },
 102         /* file system */
 103         {
 104               .name             = "filesystem",
 105               .offset           = MTDPART_OFS_APPEND,
 106               .size             = MTDPART_SIZ_FULL,
 107               .mask_flags       = 0
 108         }
 109 };
 110
 111 static struct flash_platform_data h4_flash_data = {
 112         .map_name       = "cfi_probe",
 113         .width          = 2,
 114         .parts          = h4_partitions,
 115         .nr_parts       = ARRAY_SIZE(h4_partitions),
 116 };
 117
 118 static struct resource h4_flash_resource = {
 119         .start          = H4_CS0_BASE,
 120         .end            = H4_CS0_BASE + SZ_64M - 1,
 121         .flags          = IORESOURCE_MEM,
 122 };
 123
 124 static struct platform_device h4_flash_device = {
 125         .name           = "omapflash",
 126         .id             = 0,
 127         .dev            = {
 128                 .platform_data  = &h4_flash_data,
 129         },
 130         .num_resources  = 1,
 131         .resource       = &h4_flash_resource,
 132 };
 133
 134 static struct resource h4_smc91x_resources[] = {
 135         [0] = {
 136                 .start  = OMAP24XX_ETHR_START,          /* Physical */
 137                 .end    = OMAP24XX_ETHR_START + 0xf,
 138                 .flags  = IORESOURCE_MEM,
 139         },
 140         [1] = {
 141                 .start  = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 142                 .end    = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 143                 .flags  = IORESOURCE_IRQ,
 144         },
 145 };
 146
 147 static struct platform_device h4_smc91x_device = {
 148         .name           = "smc91x",
 149         .id             = -1,
 150         .num_resources  = ARRAY_SIZE(h4_smc91x_resources),
 151         .resource       = h4_smc91x_resources,
 152 };
 153
 154 /* Select between the IrDA and aGPS module
 155  */
 156 static int h4_select_irda(struct device *dev, int state)
 157 {
 158         unsigned char expa;
 159         int err = 0;
 160
 161         if ((err = read_gpio_expa(&expa, 0x21))) {
 162                 printk(KERN_ERR "Error reading from I/O expander\n");
 163                 return err;
 164         }
 165
 166         /* 'P6' enable/disable IRDA_TX and IRDA_RX */
 167         if (state & IR_SEL) {   /* IrDa */
 168                 if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
 169                         printk(KERN_ERR "Error writing to I/O expander\n");
 170                         return err;
 171                 }
 172         } else {
 173                 if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
 174                         printk(KERN_ERR "Error writing to I/O expander\n");
 175                         return err;
 176                 }
 177         }
 178         return err;
 179 }
 180
 181 static void set_trans_mode(struct work_struct *work)
 182 {
 183         struct omap_irda_config *irda_config =
 184                 container_of(work, struct omap_irda_config, gpio_expa.work);
 185         int mode = irda_config->mode;
 186         unsigned char expa;
 187         int err = 0;
 188
 189         if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
 190                 printk(KERN_ERR "Error reading from I/O expander\n");
 191         }
 192
 193         expa &= ~0x01;
 194
 195         if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
 196                 expa |= 0x01;
 197         }
 198
 199         if ((err = write_gpio_expa(expa, 0x20)) != 0) {
 200                 printk(KERN_ERR "Error writing to I/O expander\n");
 201         }
 202 }
 203
 204 static int h4_transceiver_mode(struct device *dev, int mode)
 205 {
 206         struct omap_irda_config *irda_config = dev->platform_data;
 207
 208         irda_config->mode = mode;
 209         cancel_delayed_work(&irda_config->gpio_expa);
 210         PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
 211         schedule_delayed_work(&irda_config->gpio_expa, 0);
 212
 213         return 0;
 214 }
 215
 216 static struct omap_irda_config h4_irda_data = {
 217         .transceiver_cap        = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
 218         .transceiver_mode       = h4_transceiver_mode,
 219         .select_irda            = h4_select_irda,
 220         .rx_channel             = OMAP24XX_DMA_UART3_RX,
 221         .tx_channel             = OMAP24XX_DMA_UART3_TX,
 222         .dest_start             = OMAP_UART3_BASE,
 223         .src_start              = OMAP_UART3_BASE,
 224         .tx_trigger             = OMAP24XX_DMA_UART3_TX,
 225         .rx_trigger             = OMAP24XX_DMA_UART3_RX,
 226 };
 227
 228 static struct resource h4_irda_resources[] = {
 229         [0] = {
 230                 .start  = INT_24XX_UART3_IRQ,
 231                 .end    = INT_24XX_UART3_IRQ,
 232                 .flags  = IORESOURCE_IRQ,
 233         },
 234 };
 235
 236 static struct platform_device h4_irda_device = {
 237         .name           = "omapirda",
 238         .id             = -1,
 239         .dev            = {
 240                 .platform_data  = &h4_irda_data,
 241         },
 242         .num_resources  = 1,
 243         .resource       = h4_irda_resources,
 244 };
 245
 246 static struct omap_kp_platform_data h4_kp_data = {
 247         .rows           = 6,
 248         .cols           = 7,
 249         .keymap         = h4_keymap,
 250         .keymapsize     = ARRAY_SIZE(h4_keymap),
 251         .rep            = 1,
 252         .row_gpios      = row_gpios,
 253         .col_gpios      = col_gpios,
 254 };
 255
 256 static struct platform_device h4_kp_device = {
 257         .name           = "omap-keypad",
 258         .id             = -1,
 259         .dev            = {
 260                 .platform_data = &h4_kp_data,
 261         },
 262 };
 263
 264 static struct platform_device h4_lcd_device = {
 265         .name           = "lcd_h4",
 266         .id             = -1,
 267 };
 268
 269 static struct resource h4_led_resources[] = {
 270         [0] = {
 271                 .flags  = IORESOURCE_MEM,
 272         },
 273 };
 274
 275 static struct platform_device h4_led_device = {
 276         .name           = "omap_dbg_led",
 277         .id             = -1,
 278         .num_resources  = ARRAY_SIZE(h4_led_resources),
 279         .resource       = h4_led_resources,
 280 };
 281
 282 static struct platform_device *h4_devices[] __initdata = {
 283         &h4_smc91x_device,
 284         &h4_flash_device,
 285         &h4_irda_device,
 286         &h4_kp_device,
 287         &h4_lcd_device,
 288         &h4_led_device,
 289 };
 290
 291 static inline void __init h4_init_smc91x(void)
 292 {
 293         /* Make sure CS1 timings are correct */
 294         GPMC_CONFIG1_1 = 0x00011200;
 295         GPMC_CONFIG2_1 = 0x001f1f01;
 296         GPMC_CONFIG3_1 = 0x00080803;
 297         GPMC_CONFIG4_1 = 0x1c091c09;
 298         GPMC_CONFIG5_1 = 0x041f1f1f;
 299         GPMC_CONFIG6_1 = 0x000004c4;
 300         GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
 301         udelay(100);
 302
 303         omap_cfg_reg(M15_24XX_GPIO92);
 304         if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
 305                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 306                         OMAP24XX_ETHR_GPIO_IRQ);
 307                 return;
 308         }
 309         omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
 310 }
 311
 312 static void __init omap_h4_init_irq(void)
 313 {
 314         omap2_init_common_hw();
 315         omap_init_irq();
 316         omap_gpio_init();
 317         h4_init_smc91x();
 318 }
 319
 320 static struct omap_uart_config h4_uart_config __initdata = {
 321         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 322 };
 323
 324 static struct omap_mmc_config h4_mmc_config __initdata = {
 325         .mmc [0] = {
 326                 .enabled        = 1,
 327                 .wire4          = 1,
 328                 .wp_pin         = -1,
 329                 .power_pin      = -1,
 330                 .switch_pin     = -1,
 331         },
 332 };
 333
 334 static struct omap_lcd_config h4_lcd_config __initdata = {
 335         .ctrl_name      = "internal",
 336 };
 337
 338 static struct omap_board_config_kernel h4_config[] = {
 339         { OMAP_TAG_UART,        &h4_uart_config },
 340         { OMAP_TAG_MMC,         &h4_mmc_config },
 341         { OMAP_TAG_LCD,         &h4_lcd_config },
 342 };
 343
 344 static void __init omap_h4_init(void)
 345 {
 346         /*
 347          * Make sure the serial ports are muxed on at this point.
 348          * You have to mux them off in device drivers later on
 349          * if not needed.
 350          */
 351 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
 352         omap_cfg_reg(K15_24XX_UART3_TX);
 353         omap_cfg_reg(K14_24XX_UART3_RX);
 354 #endif
 355
 356 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
 357         if (omap_has_menelaus()) {
 358                 row_gpios[5] = 0;
 359                 col_gpios[2] = 15;
 360                 col_gpios[6] = 18;
 361         }
 362 #endif
 363
 364         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 365         omap_board_config = h4_config;
 366         omap_board_config_size = ARRAY_SIZE(h4_config);
 367         omap_serial_init();
 368 }
 369
 370 static void __init omap_h4_map_io(void)
 371 {
 372         omap2_map_common_io();
 373 }
 374
 375 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 376         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 377         .phys_io        = 0x48000000,
 378         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 379         .boot_params    = 0x80000100,
 380         .map_io         = omap_h4_map_io,
 381         .init_irq       = omap_h4_init_irq,
 382         .init_machine   = omap_h4_init,
 383         .timer          = &omap_timer,
 384 MACHINE_END