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