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