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mach-h1940.c

/* linux/arch/arm/mach-s3c2410/mach-h1940.c
 *
 * Copyright (c) 2003-2005 Simtec Electronics
 *   Ben Dooks <ben@simtec.co.uk>
 *
 * http://www.handhelds.org/projects/h1940.html
 *
 * 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/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/sysdev.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/io.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach-types.h>

#include <plat/regs-serial.h>
#include <mach/regs-lcd.h>
#include <mach/regs-gpio.h>
#include <mach/regs-clock.h>

#include <mach/h1940.h>
#include <mach/h1940-latch.h>
#include <mach/fb.h>
#include <plat/udc.h>
#include <plat/iic.h>

#include <plat/clock.h>
#include <plat/devs.h>
#include <plat/cpu.h>
#include <plat/pll.h>
#include <plat/pm.h>

static struct map_desc h1940_iodesc[] __initdata = {
      [0] = {
            .virtual    = (unsigned long)H1940_LATCH,
            .pfn        = __phys_to_pfn(H1940_PA_LATCH),
            .length           = SZ_16K,
            .type       = MT_DEVICE
      },
};

#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE

static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
      [0] = {
            .hwport          = 0,
            .flags           = 0,
            .ucon      = 0x3c5,
            .ulcon           = 0x03,
            .ufcon           = 0x51,
      },
      [1] = {
            .hwport          = 1,
            .flags           = 0,
            .ucon      = 0x245,
            .ulcon           = 0x03,
            .ufcon           = 0x00,
      },
      /* IR port */
      [2] = {
            .hwport          = 2,
            .flags           = 0,
            .uart_flags  = UPF_CONS_FLOW,
            .ucon      = 0x3c5,
            .ulcon           = 0x43,
            .ufcon           = 0x51,
      }
};

/* Board control latch control */

static unsigned int latch_state = H1940_LATCH_DEFAULT;

void h1940_latch_control(unsigned int clear, unsigned int set)
{
      unsigned long flags;

      local_irq_save(flags);

      latch_state &= ~clear;
      latch_state |= set;

      __raw_writel(latch_state, H1940_LATCH);

      local_irq_restore(flags);
}

EXPORT_SYMBOL_GPL(h1940_latch_control);

static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
{
      printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);

      switch (cmd)
      {
            case S3C2410_UDC_P_ENABLE :
                  h1940_latch_control(0, H1940_LATCH_USB_DP);
                  break;
            case S3C2410_UDC_P_DISABLE :
                  h1940_latch_control(H1940_LATCH_USB_DP, 0);
                  break;
            case S3C2410_UDC_P_RESET :
                  break;
            default:
                  break;
      }
}

static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
      .udc_command            = h1940_udc_pullup,
      .vbus_pin         = S3C2410_GPG(5),
      .vbus_pin_inverted      = 1,
};


/**
 * Set lcd on or off
 **/
static struct s3c2410fb_display h1940_lcd __initdata = {
      .lcdcon5=   S3C2410_LCDCON5_FRM565 | \
                  S3C2410_LCDCON5_INVVLINE | \
                  S3C2410_LCDCON5_HWSWP,

      .type =           S3C2410_LCDCON1_TFT,
      .width =    240,
      .height =   320,
      .pixclock = 260000,
      .xres =           240,
      .yres =           320,
      .bpp =            16,
      .left_margin =    20,
      .right_margin =   8,
      .hsync_len =      4,
      .upper_margin =   8,
      .lower_margin = 7,
      .vsync_len =      1,
};

static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
      .displays = &h1940_lcd,
      .num_displays = 1,
      .default_display = 0,

      .lpcsel=    0x02,
      .gpccon=    0xaa940659,
      .gpccon_mask=     0xffffffff,
      .gpcup=           0x0000ffff,
      .gpcup_mask=      0xffffffff,
      .gpdcon=    0xaa84aaa0,
      .gpdcon_mask=     0xffffffff,
      .gpdup=           0x0000faff,
      .gpdup_mask=      0xffffffff,
};

static struct platform_device s3c_device_leds = {
      .name             = "h1940-leds",
      .id               = -1,
};

static struct platform_device s3c_device_bluetooth = {
      .name             = "h1940-bt",
      .id               = -1,
};

static struct platform_device *h1940_devices[] __initdata = {
      &s3c_device_usb,
      &s3c_device_lcd,
      &s3c_device_wdt,
      &s3c_device_i2c0,
      &s3c_device_iis,
      &s3c_device_usbgadget,
      &s3c_device_leds,
      &s3c_device_bluetooth,
};

static void __init h1940_map_io(void)
{
      s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
      s3c24xx_init_clocks(0);
      s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));

      /* setup PM */

#ifdef CONFIG_PM_H1940
      memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
#endif
      s3c_pm_init();
}

static void __init h1940_init_irq(void)
{
      s3c24xx_init_irq();
}

static void __init h1940_init(void)
{
      u32 tmp;

      s3c24xx_fb_set_platdata(&h1940_fb_info);
      s3c24xx_udc_set_platdata(&h1940_udc_cfg);
      s3c_i2c0_set_platdata(NULL);

      /* Turn off suspend on both USB ports, and switch the
       * selectable USB port to USB device mode. */

      s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
                        S3C2410_MISCCR_USBSUSPND0 |
                        S3C2410_MISCCR_USBSUSPND1, 0x0);

      tmp =   (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
            | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
            | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
      writel(tmp, S3C2410_UPLLCON);

      platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
}

MACHINE_START(H1940, "IPAQ-H1940")
      /* Maintainer: Ben Dooks <ben@fluff.org> */
      .phys_io    = S3C2410_PA_UART,
      .io_pg_offst      = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
      .boot_params      = S3C2410_SDRAM_PA + 0x100,
      .map_io           = h1940_map_io,
      .init_irq   = h1940_init_irq,
      .init_machine     = h1940_init,
      .timer            = &s3c24xx_timer,
MACHINE_END

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