linux/arch/arm/mach-omap1/board-palmz71.c
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   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/spi/spi.h>
  48#include <linux/spi/ads7846.h>
  49
  50static void __init
  51omap_palmz71_init_irq(void)
  52{
  53        omap1_init_common_hw();
  54        omap_init_irq();
  55        omap_gpio_init();
  56}
  57
  58static 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_CENTER),
  69        KEY(2, 0, KEY_CAMERA),
  70        0,
  71};
  72
  73static 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
  81static struct resource palmz71_kp_resources[] = {
  82        [0] = {
  83                .start  = INT_KEYBOARD,
  84                .end    = INT_KEYBOARD,
  85                .flags  = IORESOURCE_IRQ,
  86        },
  87};
  88
  89static 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
  99static 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
 120static 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
 128static struct resource palmz71_rom_resource = {
 129        .start  = OMAP_CS0_PHYS,
 130        .end    = OMAP_CS0_PHYS + SZ_8M - 1,
 131        .flags  = IORESOURCE_MEM,
 132};
 133
 134static 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
 144static struct platform_device palmz71_lcd_device = {
 145        .name   = "lcd_palmz71",
 146        .id     = -1,
 147};
 148
 149static 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
 159static struct resource palmz71_irda_resources[] = {
 160        [0] = {
 161                .start  = INT_UART3,
 162                .end    = INT_UART3,
 163                .flags  = IORESOURCE_IRQ,
 164        },
 165};
 166
 167static 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
 177static struct platform_device palmz71_spi_device = {
 178        .name   = "spi_palmz71",
 179        .id     = -1,
 180};
 181
 182#define DEFAULT_BITPERSAMPLE 16
 183
 184static 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
 198static 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
 209static struct platform_device palmz71_mcbsp1_device = {
 210        .name   = "omap_alsa_mcbsp",
 211        .id     = 1,
 212        .dev = {
 213                .platform_data = &alsa_config,
 214        },
 215};
 216
 217static struct omap_backlight_config palmz71_backlight_config = {
 218        .default_intensity      = 0xa0,
 219};
 220
 221static struct platform_device palmz71_backlight_device = {
 222        .name   = "omap-bl",
 223        .id     = -1,
 224        .dev    = {
 225                .platform_data = &palmz71_backlight_config,
 226        },
 227};
 228
 229static 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
 239static int
 240palmz71_get_pendown_state(void)
 241{
 242        return !omap_get_gpio_datain(PALMZ71_PENIRQ_GPIO);
 243}
 244
 245static 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
 253static 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
 264static 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
 270static 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
 280static struct omap_lcd_config palmz71_lcd_config __initdata = {
 281        .ctrl_name = "internal",
 282};
 283
 284static struct omap_uart_config palmz71_uart_config __initdata = {
 285        .enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
 286};
 287
 288static 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
 295static irqreturn_t
 296palmz71_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                                IRQT_FALLING);
 302        } else {
 303                printk(KERN_INFO "PM: Power cable disconnected\n");
 304                set_irq_type(OMAP_GPIO_IRQ(PALMZ71_USBDETECT_GPIO),
 305                                IRQT_RISING);
 306        }
 307        return IRQ_HANDLED;
 308}
 309
 310static void __init
 311omap_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
 321static void __init
 322palmz71_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
 352static void __init
 353omap_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
 370static void __init
 371omap_palmz71_map_io(void)
 372{
 373        omap1_map_common_io();
 374}
 375
 376MACHINE_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,
 383MACHINE_END
 384
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