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 /* Select between the IrDA and aGPS module
 135  */
 136 static int h4_select_irda(struct device *dev, int state)
 137 {
 138         unsigned char expa;
 139         int err = 0;
 140
 141         if ((err = read_gpio_expa(&expa, 0x21))) {
 142                 printk(KERN_ERR "Error reading from I/O expander\n");
 143                 return err;
 144         }
 145
 146         /* 'P6' enable/disable IRDA_TX and IRDA_RX */
 147         if (state & IR_SEL) {   /* IrDa */
 148                 if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
 149                         printk(KERN_ERR "Error writing to I/O expander\n");
 150                         return err;
 151                 }
 152         } else {
 153                 if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
 154                         printk(KERN_ERR "Error writing to I/O expander\n");
 155                         return err;
 156                 }
 157         }
 158         return err;
 159 }
 160
 161 static void set_trans_mode(struct work_struct *work)
 162 {
 163         struct omap_irda_config *irda_config =
 164                 container_of(work, struct omap_irda_config, gpio_expa.work);
 165         int mode = irda_config->mode;
 166         unsigned char expa;
 167         int err = 0;
 168
 169         if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
 170                 printk(KERN_ERR "Error reading from I/O expander\n");
 171         }
 172
 173         expa &= ~0x01;
 174
 175         if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
 176                 expa |= 0x01;
 177         }
 178
 179         if ((err = write_gpio_expa(expa, 0x20)) != 0) {
 180                 printk(KERN_ERR "Error writing to I/O expander\n");
 181         }
 182 }
 183
 184 static int h4_transceiver_mode(struct device *dev, int mode)
 185 {
 186         struct omap_irda_config *irda_config = dev->platform_data;
 187
 188         irda_config->mode = mode;
 189         cancel_delayed_work(&irda_config->gpio_expa);
 190         PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
 191         schedule_delayed_work(&irda_config->gpio_expa, 0);
 192
 193         return 0;
 194 }
 195
 196 static struct omap_irda_config h4_irda_data = {
 197         .transceiver_cap        = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
 198         .transceiver_mode       = h4_transceiver_mode,
 199         .select_irda            = h4_select_irda,
 200         .rx_channel             = OMAP24XX_DMA_UART3_RX,
 201         .tx_channel             = OMAP24XX_DMA_UART3_TX,
 202         .dest_start             = OMAP_UART3_BASE,
 203         .src_start              = OMAP_UART3_BASE,
 204         .tx_trigger             = OMAP24XX_DMA_UART3_TX,
 205         .rx_trigger             = OMAP24XX_DMA_UART3_RX,
 206 };
 207
 208 static struct resource h4_irda_resources[] = {
 209         [0] = {
 210                 .start  = INT_24XX_UART3_IRQ,
 211                 .end    = INT_24XX_UART3_IRQ,
 212                 .flags  = IORESOURCE_IRQ,
 213         },
 214 };
 215
 216 static struct platform_device h4_irda_device = {
 217         .name           = "omapirda",
 218         .id             = -1,
 219         .dev            = {
 220                 .platform_data  = &h4_irda_data,
 221         },
 222         .num_resources  = 1,
 223         .resource       = h4_irda_resources,
 224 };
 225
 226 static struct omap_kp_platform_data h4_kp_data = {
 227         .rows           = 6,
 228         .cols           = 7,
 229         .keymap         = h4_keymap,
 230         .keymapsize     = ARRAY_SIZE(h4_keymap),
 231         .rep            = 1,
 232         .row_gpios      = row_gpios,
 233         .col_gpios      = col_gpios,
 234 };
 235
 236 static struct platform_device h4_kp_device = {
 237         .name           = "omap-keypad",
 238         .id             = -1,
 239         .dev            = {
 240                 .platform_data = &h4_kp_data,
 241         },
 242 };
 243
 244 static struct platform_device h4_lcd_device = {
 245         .name           = "lcd_h4",
 246         .id             = -1,
 247 };
 248
 249 static struct platform_device *h4_devices[] __initdata = {
 250         &h4_flash_device,
 251         &h4_irda_device,
 252         &h4_kp_device,
 253         &h4_lcd_device,
 254 };
 255
 256 static inline void __init h4_init_debug(void)
 257 {
 258         /* Make sure CS1 timings are correct */
 259         GPMC_CONFIG1_1 = 0x00011200;
 260         GPMC_CONFIG2_1 = 0x001f1f01;
 261         GPMC_CONFIG3_1 = 0x00080803;
 262         GPMC_CONFIG4_1 = 0x1c091c09;
 263         GPMC_CONFIG5_1 = 0x041f1f1f;
 264         GPMC_CONFIG6_1 = 0x000004c4;
 265         GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
 266         udelay(100);
 267
 268         omap_cfg_reg(M15_24XX_GPIO92);
 269         if (debug_card_init(cs_mem_base, OMAP24XX_ETHR_GPIO_IRQ) < 0)
 270                 gpmc_cs_free(eth_cs);
 271 }
 272
 273 static void __init omap_h4_init_irq(void)
 274 {
 275         omap2_init_common_hw();
 276         omap_init_irq();
 277         omap_gpio_init();
 278 }
 279
 280 static struct omap_uart_config h4_uart_config __initdata = {
 281         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 282 };
 283
 284 static struct omap_mmc_config h4_mmc_config __initdata = {
 285         .mmc [0] = {
 286                 .enabled        = 1,
 287                 .wire4          = 1,
 288                 .wp_pin         = -1,
 289                 .power_pin      = -1,
 290                 .switch_pin     = -1,
 291         },
 292 };
 293
 294 static struct omap_lcd_config h4_lcd_config __initdata = {
 295         .ctrl_name      = "internal",
 296 };
 297
 298 static struct omap_board_config_kernel h4_config[] = {
 299         { OMAP_TAG_UART,        &h4_uart_config },
 300         { OMAP_TAG_MMC,         &h4_mmc_config },
 301         { OMAP_TAG_LCD,         &h4_lcd_config },
 302 };
 303
 304 static void __init omap_h4_init(void)
 305 {
 306         /*
 307          * Make sure the serial ports are muxed on at this point.
 308          * You have to mux them off in device drivers later on
 309          * if not needed.
 310          */
 311 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
 312         omap_cfg_reg(K15_24XX_UART3_TX);
 313         omap_cfg_reg(K14_24XX_UART3_RX);
 314 #endif
 315
 316 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
 317         if (omap_has_menelaus()) {
 318                 row_gpios[5] = 0;
 319                 col_gpios[2] = 15;
 320                 col_gpios[6] = 18;
 321         }
 322 #endif
 323
 324         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 325         omap_board_config = h4_config;
 326         omap_board_config_size = ARRAY_SIZE(h4_config);
 327         omap_serial_init();
 328 }
 329
 330 static void __init omap_h4_map_io(void)
 331 {
 332         omap2_map_common_io();
 333 }
 334
 335 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 336         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 337         .phys_io        = 0x48000000,
 338         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 339         .boot_params    = 0x80000100,
 340         .map_io         = omap_h4_map_io,
 341         .init_irq       = omap_h4_init_irq,
 342         .init_machine   = omap_h4_init,
 343         .timer          = &omap_timer,
 344 MACHINE_END