arch/arm/mach-omap1/board-palmz71.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-palmz71.c
   3  *
   4  * Modified from board-generic.c
   5  *
   6  * Support for the Palm Zire71 PDA.
   7  *
   8  * Original version : Laurent Gonzalez
   9  *
  10  * Modified for zire71 : Marek Vasut
  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/delay.h>
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/notifier.h>
  22 #include <linux/clk.h>
  23 #include <linux/irq.h>
  24 #include <linux/input.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/mtd/mtd.h>
  27 #include <linux/mtd/partitions.h>
  28
  29 #include <mach/hardware.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33 #include <asm/mach/flash.h>
  34
  35 #include <mach/mcbsp.h>
  36 #include <mach/gpio.h>
  37 #include <mach/mux.h>
  38 #include <mach/usb.h>
  39 #include <mach/dma.h>
  40 #include <mach/tc.h>
  41 #include <mach/board.h>
  42 #include <mach/irda.h>
  43 #include <mach/keypad.h>
  44 #include <mach/common.h>
  45 #include <mach/omap-alsa.h>
  46
  47 #include <linux/spi/spi.h>
  48 #include <linux/spi/ads7846.h>
  49
  50 static void __init
  51 omap_palmz71_init_irq(void)
  52 {
  53         omap1_init_common_hw();
  54         omap_init_irq();
  55         omap_gpio_init();
  56 }
  57
  58 static int palmz71_keymap[] = {
  59         KEY(0, 0, KEY_F1),
  60         KEY(0, 1, KEY_F2),
  61         KEY(0, 2, KEY_F3),
  62         KEY(0, 3, KEY_F4),
  63         KEY(0, 4, KEY_POWER),
  64         KEY(1, 0, KEY_LEFT),
  65         KEY(1, 1, KEY_DOWN),
  66         KEY(1, 2, KEY_UP),
  67         KEY(1, 3, KEY_RIGHT),
  68         KEY(1, 4, KEY_ENTER),
  69         KEY(2, 0, KEY_CAMERA),
  70         0,
  71 };
  72
  73 static struct omap_kp_platform_data palmz71_kp_data = {
  74         .rows   = 8,
  75         .cols   = 8,
  76         .keymap = palmz71_keymap,
  77         .rep    = 1,
  78         .delay  = 80,
  79 };
  80
  81 static struct resource palmz71_kp_resources[] = {
  82         [0] = {
  83                 .start  = INT_KEYBOARD,
  84                 .end    = INT_KEYBOARD,
  85                 .flags  = IORESOURCE_IRQ,
  86         },
  87 };
  88
  89 static struct platform_device palmz71_kp_device = {
  90         .name   = "omap-keypad",
  91         .id     = -1,
  92         .dev    = {
  93                 .platform_data = &palmz71_kp_data,
  94         },
  95         .num_resources  = ARRAY_SIZE(palmz71_kp_resources),
  96         .resource       = palmz71_kp_resources,
  97 };
  98
  99 static struct mtd_partition palmz71_rom_partitions[] = {
 100         /* PalmOS "Small ROM", contains the bootloader and the debugger */
 101         {
 102                 .name           = "smallrom",
 103                 .offset         = 0,
 104                 .size           = 0xa000,
 105                 .mask_flags     = MTD_WRITEABLE,
 106         },
 107         /* PalmOS "Big ROM", a filesystem with all the OS code and data */
 108         {
 109                 .name   = "bigrom",
 110                 .offset = SZ_128K,
 111                 /*
 112                  * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
 113                  * 0x7b0000 bytes in the English-only ("enUS") version.
 114                  */
 115                 .size           = 0x7b0000,
 116                 .mask_flags     = MTD_WRITEABLE,
 117         },
 118 };
 119
 120 static struct flash_platform_data palmz71_rom_data = {
 121         .map_name       = "map_rom",
 122         .name           = "onboardrom",
 123         .width          = 2,
 124         .parts          = palmz71_rom_partitions,
 125         .nr_parts       = ARRAY_SIZE(palmz71_rom_partitions),
 126 };
 127
 128 static struct resource palmz71_rom_resource = {
 129         .start  = OMAP_CS0_PHYS,
 130         .end    = OMAP_CS0_PHYS + SZ_8M - 1,
 131         .flags  = IORESOURCE_MEM,
 132 };
 133
 134 static struct platform_device palmz71_rom_device = {
 135         .name   = "omapflash",
 136         .id     = -1,
 137         .dev = {
 138                 .platform_data = &palmz71_rom_data,
 139         },
 140         .num_resources  = 1,
 141         .resource       = &palmz71_rom_resource,
 142 };
 143
 144 static struct platform_device palmz71_lcd_device = {
 145         .name   = "lcd_palmz71",
 146         .id     = -1,
 147 };
 148
 149 static struct omap_irda_config palmz71_irda_config = {
 150         .transceiver_cap        = IR_SIRMODE,
 151         .rx_channel             = OMAP_DMA_UART3_RX,
 152         .tx_channel             = OMAP_DMA_UART3_TX,
 153         .dest_start             = UART3_THR,
 154         .src_start              = UART3_RHR,
 155         .tx_trigger             = 0,
 156         .rx_trigger             = 0,
 157 };
 158
 159 static struct resource palmz71_irda_resources[] = {
 160         [0] = {
 161                 .start  = INT_UART3,
 162                 .end    = INT_UART3,
 163                 .flags  = IORESOURCE_IRQ,
 164         },
 165 };
 166
 167 static struct platform_device palmz71_irda_device = {
 168         .name   = "omapirda",
 169         .id     = -1,
 170         .dev = {
 171                 .platform_data = &palmz71_irda_config,
 172         },
 173         .num_resources  = ARRAY_SIZE(palmz71_irda_resources),
 174         .resource       = palmz71_irda_resources,
 175 };
 176
 177 static struct platform_device palmz71_spi_device = {
 178         .name   = "spi_palmz71",
 179         .id     = -1,
 180 };
 181
 182 #define DEFAULT_BITPERSAMPLE 16
 183
 184 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
 185         .spcr2  = FREE | FRST | GRST | XRST | XINTM(3),
 186         .spcr1  = RINTM(3) | RRST,
 187         .rcr2   = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
 188                         RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
 189         .rcr1   = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
 190         .xcr2   = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
 191                         XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
 192         .xcr1   = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
 193         .srgr1  = FWID(DEFAULT_BITPERSAMPLE - 1),
 194         .srgr2  = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
 195         .pcr0   = CLKXP | CLKRP,        /* mcbsp: slave */
 196 };
 197
 198 static struct omap_alsa_codec_config alsa_config = {
 199         .name                   = "PalmZ71 AIC23",
 200         .mcbsp_regs_alsa        = &mcbsp_regs,
 201         .codec_configure_dev    = NULL, /* aic23_configure */
 202         .codec_set_samplerate   = NULL, /* aic23_set_samplerate */
 203         .codec_clock_setup      = NULL, /* aic23_clock_setup */
 204         .codec_clock_on         = NULL, /* aic23_clock_on */
 205         .codec_clock_off        = NULL, /* aic23_clock_off */
 206         .get_default_samplerate = NULL, /* aic23_get_default_samplerate */
 207 };
 208
 209 static struct platform_device palmz71_mcbsp1_device = {
 210         .name   = "omap_alsa_mcbsp",
 211         .id     = 1,
 212         .dev = {
 213                 .platform_data = &alsa_config,
 214         },
 215 };
 216
 217 static struct omap_backlight_config palmz71_backlight_config = {
 218         .default_intensity      = 0xa0,
 219 };
 220
 221 static struct platform_device palmz71_backlight_device = {
 222         .name   = "omap-bl",
 223         .id     = -1,
 224         .dev    = {
 225                 .platform_data = &palmz71_backlight_config,
 226         },
 227 };
 228
 229 static struct platform_device *devices[] __initdata = {
 230         &palmz71_rom_device,
 231         &palmz71_kp_device,
 232         &palmz71_mcbsp1_device,
 233         &palmz71_lcd_device,
 234         &palmz71_irda_device,
 235         &palmz71_spi_device,
 236         &palmz71_backlight_device,
 237 };
 238
 239 static int
 240 palmz71_get_pendown_state(void)
 241 {
 242         return !omap_get_gpio_datain(PALMZ71_PENIRQ_GPIO);
 243 }
 244
 245 static const struct ads7846_platform_data palmz71_ts_info = {
 246         .model                  = 7846,
 247         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 248         .x_plate_ohms           = 419,
 249         .y_plate_ohms           = 486,
 250         .get_pendown_state      = palmz71_get_pendown_state,
 251 };
 252
 253 static struct spi_board_info __initdata palmz71_boardinfo[] = { {
 254         /* MicroWire (bus 2) CS0 has an ads7846e */
 255         .modalias       = "ads7846",
 256         .platform_data  = &palmz71_ts_info,
 257         .irq            = OMAP_GPIO_IRQ(PALMZ71_PENIRQ_GPIO),
 258         .max_speed_hz   = 120000        /* max sample rate at 3V */
 259                                 * 26    /* command + data + overhead */,
 260         .bus_num        = 2,
 261         .chip_select    = 0,
 262 } };
 263
 264 static struct omap_usb_config palmz71_usb_config __initdata = {
 265         .register_dev   = 1,    /* Mini-B only receptacle */
 266         .hmc_mode       = 0,
 267         .pins[0]        = 2,
 268 };
 269
 270 static struct omap_mmc_config palmz71_mmc_config __initdata = {
 271         .mmc[0] = {
 272                 .enabled        = 1,
 273                 .wire4          = 0,
 274                 .wp_pin         = PALMZ71_MMC_WP_GPIO,
 275                 .power_pin      = -1,
 276                 .switch_pin     = PALMZ71_MMC_IN_GPIO,
 277         },
 278 };
 279
 280 static struct omap_lcd_config palmz71_lcd_config __initdata = {
 281         .ctrl_name = "internal",
 282 };
 283
 284 static struct omap_uart_config palmz71_uart_config __initdata = {
 285         .enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
 286 };
 287
 288 static struct omap_board_config_kernel palmz71_config[] __initdata = {
 289         {OMAP_TAG_USB,  &palmz71_usb_config},
 290         {OMAP_TAG_MMC,  &palmz71_mmc_config},
 291         {OMAP_TAG_LCD,  &palmz71_lcd_config},
 292         {OMAP_TAG_UART, &palmz71_uart_config},
 293 };
 294
 295 static irqreturn_t
 296 palmz71_powercable(int irq, void *dev_id)
 297 {
 298         if (omap_get_gpio_datain(PALMZ71_USBDETECT_GPIO)) {
 299                 printk(KERN_INFO "PM: Power cable connected\n");
 300                 set_irq_type(OMAP_GPIO_IRQ(PALMZ71_USBDETECT_GPIO),
 301                                 IRQ_TYPE_EDGE_FALLING);
 302         } else {
 303                 printk(KERN_INFO "PM: Power cable disconnected\n");
 304                 set_irq_type(OMAP_GPIO_IRQ(PALMZ71_USBDETECT_GPIO),
 305                                 IRQ_TYPE_EDGE_RISING);
 306         }
 307         return IRQ_HANDLED;
 308 }
 309
 310 static void __init
 311 omap_mpu_wdt_mode(int mode)
 312 {
 313         if (mode)
 314                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
 315         else {
 316                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
 317                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
 318         }
 319 }
 320
 321 static void __init
 322 palmz71_gpio_setup(int early)
 323 {
 324         if (early) {
 325                 /* Only set GPIO1 so we have a working serial */
 326                 omap_set_gpio_dataout(1, 1);
 327                 omap_set_gpio_direction(1, 0);
 328         } else {
 329                 /* Set MMC/SD host WP pin as input */
 330                 if (omap_request_gpio(PALMZ71_MMC_WP_GPIO)) {
 331                         printk(KERN_ERR "Could not reserve WP GPIO!\n");
 332                         return;
 333                 }
 334                 omap_set_gpio_direction(PALMZ71_MMC_WP_GPIO, 1);
 335
 336                 /* Monitor the Power-cable-connected signal */
 337                 if (omap_request_gpio(PALMZ71_USBDETECT_GPIO)) {
 338                         printk(KERN_ERR
 339                                 "Could not reserve cable signal GPIO!\n");
 340                         return;
 341                 }
 342                 omap_set_gpio_direction(PALMZ71_USBDETECT_GPIO, 1);
 343                 if (request_irq(OMAP_GPIO_IRQ(PALMZ71_USBDETECT_GPIO),
 344                                 palmz71_powercable, IRQF_SAMPLE_RANDOM,
 345                                 "palmz71-cable", 0))
 346                         printk(KERN_ERR
 347                                         "IRQ request for power cable failed!\n");
 348                 palmz71_powercable(OMAP_GPIO_IRQ(PALMZ71_USBDETECT_GPIO), 0);
 349         }
 350 }
 351
 352 static void __init
 353 omap_palmz71_init(void)
 354 {
 355         palmz71_gpio_setup(1);
 356         omap_mpu_wdt_mode(0);
 357
 358         omap_board_config = palmz71_config;
 359         omap_board_config_size = ARRAY_SIZE(palmz71_config);
 360
 361         platform_add_devices(devices, ARRAY_SIZE(devices));
 362
 363         spi_register_board_info(palmz71_boardinfo,
 364                                 ARRAY_SIZE(palmz71_boardinfo));
 365         omap_serial_init();
 366         omap_register_i2c_bus(1, 100, NULL, 0);
 367         palmz71_gpio_setup(0);
 368 }
 369
 370 static void __init
 371 omap_palmz71_map_io(void)
 372 {
 373         omap1_map_common_io();
 374 }
 375
 376 MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
 377         .phys_io = 0xfff00000,
 378         .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
 379         .boot_params = 0x10000100,.map_io = omap_palmz71_map_io,
 380         .init_irq = omap_palmz71_init_irq,
 381         .init_machine = omap_palmz71_init,
 382         .timer = &omap_timer,
 383 MACHINE_END