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board-palmtt.c

/*
 * linux/arch/arm/mach-omap1/board-palmtt.c
 *
 * Modified from board-palmtt2.c
 *
 * Modified and amended for Palm Tungsten|T
 * by Marek Vasut <marek.vasut@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/notifier.h>
#include <linux/clk.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/leds.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>

#include <mach/led.h>
#include <mach/mcbsp.h>
#include <mach/gpio.h>
#include <mach/mux.h>
#include <mach/usb.h>
#include <mach/dma.h>
#include <mach/tc.h>
#include <mach/board.h>
#include <mach/irda.h>
#include <mach/keypad.h>
#include <mach/common.h>
#include <mach/omap-alsa.h>

#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>

static int palmtt_keymap[] = {
      KEY(0, 0, KEY_ESC),
      KEY(0, 1, KEY_SPACE),
      KEY(0, 2, KEY_LEFTCTRL),
      KEY(0, 3, KEY_TAB),
      KEY(0, 4, KEY_ENTER),
      KEY(1, 0, KEY_LEFT),
      KEY(1, 1, KEY_DOWN),
      KEY(1, 2, KEY_UP),
      KEY(1, 3, KEY_RIGHT),
      KEY(2, 0, KEY_SLEEP),
      KEY(2, 4, KEY_Y),
      0
};

static struct mtd_partition palmtt_partitions[] = {
      {
            .name       = "write8k",
            .offset           = 0,
            .size       = SZ_8K,
            .mask_flags = 0,
      },
      {
            .name       = "PalmOS-BootLoader(ro)",
            .offset           = SZ_8K,
            .size       = 7 * SZ_8K,
            .mask_flags = MTD_WRITEABLE,
      },
      {
            .name       = "u-boot",
            .offset           = MTDPART_OFS_APPEND,
            .size       = 8 * SZ_8K,
            .mask_flags = 0,
      },
      {
            .name       = "PalmOS-FS(ro)",
            .offset           = MTDPART_OFS_APPEND,
            .size       = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
            .mask_flags = MTD_WRITEABLE,
      },
      {
            .name       = "u-boot(rez)",
            .offset           = MTDPART_OFS_APPEND,
            .size       = SZ_128K,
            .mask_flags = 0
      },
      {
            .name       = "empty",
            .offset           = MTDPART_OFS_APPEND,
            .size       = MTDPART_SIZ_FULL,
            .mask_flags = 0
      }
};

static struct flash_platform_data palmtt_flash_data = {
      .map_name   = "cfi_probe",
      .width            = 2,
      .parts            = palmtt_partitions,
      .nr_parts   = ARRAY_SIZE(palmtt_partitions),
};

static struct resource palmtt_flash_resource = {
      .start            = OMAP_CS0_PHYS,
      .end        = OMAP_CS0_PHYS + SZ_8M - 1,
      .flags            = IORESOURCE_MEM,
};

static struct platform_device palmtt_flash_device = {
      .name       = "omapflash",
      .id         = 0,
      .dev        = {
            .platform_data    = &palmtt_flash_data,
      },
      .num_resources    = 1,
      .resource   = &palmtt_flash_resource,
};

#define DEFAULT_BITPERSAMPLE 16

static struct omap_mcbsp_reg_cfg mcbsp_regs = {
      .spcr2            = FREE | FRST | GRST | XRST | XINTM(3),
      .spcr1            = RINTM(3) | RRST,
      .rcr2       = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
                        RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
      .rcr1       = RFRLEN1(OMAP_MCBSP_WORD_8) |
                        RWDLEN1(OMAP_MCBSP_WORD_16),
      .xcr2       = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
                        XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
      .xcr1       = XFRLEN1(OMAP_MCBSP_WORD_8) |
                        XWDLEN1(OMAP_MCBSP_WORD_16),
      .srgr1            = FWID(DEFAULT_BITPERSAMPLE - 1),
      .srgr2            = GSYNC | CLKSP | FSGM |
                        FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
      .pcr0       = CLKXP | CLKRP,  /* mcbsp: slave */
};

static struct omap_alsa_codec_config alsa_config = {
      .name             = "PalmTT AIC23",
      .mcbsp_regs_alsa  = &mcbsp_regs,
      .codec_configure_dev    = NULL, /* aic23_configure, */
      .codec_set_samplerate   = NULL, /* aic23_set_samplerate, */
      .codec_clock_setup      = NULL, /* aic23_clock_setup, */
      .codec_clock_on         = NULL, /* aic23_clock_on, */
      .codec_clock_off  = NULL, /* aic23_clock_off, */
      .get_default_samplerate = NULL, /* aic23_get_default_samplerate, */
};

static struct platform_device palmtt_mcbsp1_device = {
      .name = "omap_alsa_mcbsp",
      .id   = 1,
      .dev  = {
            .platform_data    = &alsa_config,
      },
};

static struct resource palmtt_kp_resources[] = {
      [0] = {
            .start      = INT_KEYBOARD,
            .end  = INT_KEYBOARD,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct omap_kp_platform_data palmtt_kp_data = {
      .rows = 6,
      .cols = 3,
      .keymap = palmtt_keymap,
};

static struct platform_device palmtt_kp_device = {
      .name       = "omap-keypad",
      .id         = -1,
      .dev        = {
            .platform_data = &palmtt_kp_data,
      },
      .num_resources    = ARRAY_SIZE(palmtt_kp_resources),
      .resource   = palmtt_kp_resources,
};

static struct platform_device palmtt_lcd_device = {
      .name       = "lcd_palmtt",
      .id         = -1,
};
static struct omap_irda_config palmtt_irda_config = {
      .transceiver_cap  = IR_SIRMODE,
      .rx_channel       = OMAP_DMA_UART3_RX,
      .tx_channel       = OMAP_DMA_UART3_TX,
      .dest_start       = UART3_THR,
      .src_start        = UART3_RHR,
      .tx_trigger       = 0,
      .rx_trigger       = 0,
};

static struct resource palmtt_irda_resources[] = {
      [0]   = {
            .start      = INT_UART3,
            .end  = INT_UART3,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device palmtt_irda_device = {
      .name       = "omapirda",
      .id         = -1,
      .dev        = {
            .platform_data    = &palmtt_irda_config,
      },
      .num_resources    = ARRAY_SIZE(palmtt_irda_resources),
      .resource   = palmtt_irda_resources,
};

static struct platform_device palmtt_spi_device = {
      .name       = "spi_palmtt",
      .id         = -1,
};

static struct omap_backlight_config palmtt_backlight_config = {
      .default_intensity      = 0xa0,
};

static struct platform_device palmtt_backlight_device = {
      .name       = "omap-bl",
      .id         = -1,
      .dev        = {
            .platform_data= &palmtt_backlight_config,
      },
};

static struct omap_led_config palmtt_led_config[] = {
      {
            .cdev = {
                  .name = "palmtt:led0",
            },
            .gpio = PALMTT_LED_GPIO,
      },
};

static struct omap_led_platform_data palmtt_led_data = {
      .nr_leds    = ARRAY_SIZE(palmtt_led_config),
      .leds       = palmtt_led_config,
};

static struct platform_device palmtt_led_device = {
      .name = "omap-led",
      .id   = -1,
      .dev  = {
            .platform_data    = &palmtt_led_data,
      },
};

static struct platform_device *palmtt_devices[] __initdata = {
      &palmtt_flash_device,
      &palmtt_mcbsp1_device,
      &palmtt_kp_device,
      &palmtt_lcd_device,
      &palmtt_irda_device,
      &palmtt_spi_device,
      &palmtt_backlight_device,
      &palmtt_led_device,
};

static int palmtt_get_pendown_state(void)
{
      return !omap_get_gpio_datain(6);
}

static const struct ads7846_platform_data palmtt_ts_info = {
      .model                  = 7846,
      .vref_delay_usecs = 100,      /* internal, no capacitor */
      .x_plate_ohms           = 419,
      .y_plate_ohms           = 486,
      .get_pendown_state      = palmtt_get_pendown_state,
};

static struct spi_board_info __initdata palmtt_boardinfo[] = {
      {
            /* MicroWire (bus 2) CS0 has an ads7846e */
            .modalias   = "ads7846",
            .platform_data    = &palmtt_ts_info,
            .irq        = OMAP_GPIO_IRQ(6),
            .max_speed_hz     = 120000    /* max sample rate at 3V */
                              * 26  /* command + data + overhead */,
            .bus_num    = 2,
            .chip_select      = 0,
      }
};

static void __init omap_palmtt_init_irq(void)
{
      omap1_init_common_hw();
      omap_init_irq();
}

static struct omap_usb_config palmtt_usb_config __initdata = {
      .register_dev     = 1,
      .hmc_mode   = 0,
      .pins[0]    = 2,
};

static struct omap_lcd_config palmtt_lcd_config __initdata = {
      .ctrl_name  = "internal",
};

static struct omap_uart_config palmtt_uart_config __initdata = {
      .enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
};

static struct omap_board_config_kernel palmtt_config[] __initdata = {
      { OMAP_TAG_USB,         &palmtt_usb_config      },
      { OMAP_TAG_LCD,         &palmtt_lcd_config      },
      { OMAP_TAG_UART,  &palmtt_uart_config     },
};

static void __init omap_mpu_wdt_mode(int mode) {
      if (mode)
            omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
      else {
            omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
            omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
      }
}

static void __init omap_palmtt_init(void)
{
      omap_mpu_wdt_mode(0);

      omap_board_config = palmtt_config;
      omap_board_config_size = ARRAY_SIZE(palmtt_config);

      platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));

      spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
      omap_serial_init();
      omap_register_i2c_bus(1, 100, NULL, 0);
}

static void __init omap_palmtt_map_io(void)
{
      omap1_map_common_io();
}

MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
      .phys_io    = 0xfff00000,
      .io_pg_offst      = ((0xfef00000) >> 18) & 0xfffc,
      .boot_params      = 0x10000100,
      .map_io           = omap_palmtt_map_io,
      .init_irq   = omap_palmtt_init_irq,
      .init_machine     = omap_palmtt_init,
      .timer            = &omap_timer,
MACHINE_END

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