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mach-amlm5900.c

/* linux/arch/arm/mach-s3c2410/mach-amlm5900.c
 *
 * linux/arch/arm/mach-s3c2410/mach-amlm5900.c
 *
 * Copyright (c) 2006 American Microsystems Limited
 *    David Anders <danders@amltd.com>

 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 * @History:
 * derived from linux/arch/arm/mach-s3c2410/mach-bast.c, written by
 * Ben Dooks <ben@simtec.co.uk>
 *
 ***********************************************************************/

#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/gpio.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/proc_fs.h>
#include <linux/serial_core.h>
#include <linux/io.h>

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

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

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

#include <plat/iic.h>
#include <plat/devs.h>
#include <plat/cpu.h>

#ifdef CONFIG_MTD_PARTITIONS

#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/map.h>
#include <linux/mtd/physmap.h>

static struct resource amlm5900_nor_resource = {
            .start = 0x00000000,
            .end   = 0x01000000 - 1,
            .flags = IORESOURCE_MEM,
};



static struct mtd_partition amlm5900_mtd_partitions[] = {
      {
            .name       = "System",
            .size       = 0x240000,
            .offset           = 0,
            .mask_flags       = MTD_WRITEABLE,  /* force read-only */
      }, {
            .name       = "Kernel",
            .size       = 0x100000,
            .offset           = MTDPART_OFS_APPEND,
      }, {
            .name       = "Ramdisk",
            .size       = 0x300000,
            .offset           = MTDPART_OFS_APPEND,
      }, {
            .name       = "JFFS2",
            .size       = 0x9A0000,
            .offset           = MTDPART_OFS_APPEND,
      }, {
            .name       = "Settings",
            .size       = MTDPART_SIZ_FULL,
            .offset           = MTDPART_OFS_APPEND,
      }
};

static struct physmap_flash_data amlm5900_flash_data = {
      .width            = 2,
      .parts            = amlm5900_mtd_partitions,
      .nr_parts   = ARRAY_SIZE(amlm5900_mtd_partitions),
};

static struct platform_device amlm5900_device_nor = {
      .name       = "physmap-flash",
      .id         = 0,
      .dev = {
                  .platform_data = &amlm5900_flash_data,
            },
      .num_resources    = 1,
      .resource   = &amlm5900_nor_resource,
};
#endif

static struct map_desc amlm5900_iodesc[] __initdata = {
};

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

static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
      [0] = {
            .hwport          = 0,
            .flags           = 0,
            .ucon      = UCON,
            .ulcon           = ULCON,
            .ufcon           = UFCON,
      },
      [1] = {
            .hwport          = 1,
            .flags           = 0,
            .ucon      = UCON,
            .ulcon           = ULCON,
            .ufcon           = UFCON,
      },
      [2] = {
            .hwport          = 2,
            .flags           = 0,
            .ucon      = UCON,
            .ulcon           = ULCON,
            .ufcon           = UFCON,
      }
};


static struct platform_device *amlm5900_devices[] __initdata = {
#ifdef CONFIG_FB_S3C2410
      &s3c_device_lcd,
#endif
      &s3c_device_adc,
      &s3c_device_wdt,
      &s3c_device_i2c0,
      &s3c_device_usb,
      &s3c_device_rtc,
      &s3c_device_usbgadget,
        &s3c_device_sdi,
#ifdef CONFIG_MTD_PARTITIONS
      &amlm5900_device_nor,
#endif
};

static void __init amlm5900_map_io(void)
{
      s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
      s3c24xx_init_clocks(0);
      s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
}

#ifdef CONFIG_FB_S3C2410
static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
      .width            = 160,
      .height           = 160,

      .type       = S3C2410_LCDCON1_STN4,

      .pixclock   = 680000, /* HCLK = 100MHz */
      .xres       = 160,
      .yres       = 160,
      .bpp        = 4,
      .left_margin      = 1 << (4 + 3),
      .right_margin     = 8 << 3,
      .hsync_len  = 48,
      .upper_margin     = 0,
      .lower_margin     = 0,

      .lcdcon5    = 0x00000001,
};

static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {

      .displays = &amlm5900_lcd_info,
      .num_displays = 1,
      .default_display = 0,

      .gpccon =   0xaaaaaaaa,
      .gpccon_mask =    0xffffffff,
      .gpcup =    0x0000ffff,
      .gpcup_mask =     0xffffffff,

      .gpdcon =   0xaaaaaaaa,
      .gpdcon_mask =    0xffffffff,
      .gpdup =    0x0000ffff,
      .gpdup_mask =     0xffffffff,
};
#endif

static irqreturn_t
amlm5900_wake_interrupt(int irq, void *ignored)
{
      return IRQ_HANDLED;
}

static void amlm5900_init_pm(void)
{
      int ret = 0;

      ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
                        IRQF_TRIGGER_RISING | IRQF_SHARED,
                        "amlm5900_wakeup", &amlm5900_wake_interrupt);
      if (ret != 0) {
            printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
      } else {
            enable_irq_wake(IRQ_EINT9);
            /* configure the suspend/resume status pin */
            s3c2410_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
            s3c2410_gpio_pullup(S3C2410_GPF(2), 0);
      }
}
static void __init amlm5900_init(void)
{
      amlm5900_init_pm();
#ifdef CONFIG_FB_S3C2410
      s3c24xx_fb_set_platdata(&amlm5900_fb_info);
#endif
      s3c_i2c0_set_platdata(NULL);
      platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
}

MACHINE_START(AML_M5900, "AML_M5900")
      .phys_io    = S3C2410_PA_UART,
      .io_pg_offst      = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
      .boot_params      = S3C2410_SDRAM_PA + 0x100,
      .map_io           = amlm5900_map_io,
      .init_irq   = s3c24xx_init_irq,
      .init_machine     = amlm5900_init,
      .timer            = &s3c24xx_timer,
MACHINE_END

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