mach-amlm5900.c

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/* linux/arch/arm/mach-s3c2410/mach-amlm5900.c
 *
 * linux/arch/arm/mach-s3c2410/mach-amlm5900.c
 *
 * Copyright (c) 2006 American Microsystems Limited
 *  David Anders <[email protected]>

 * 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 <[email protected]>
 *
 ***********************************************************************/

#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 <linux/platform_data/i2c-s3c2410.h>
#include <plat/devs.h>
#include <plat/cpu.h>
#include <plat/gpio-cfg.h>

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

#include "common.h"

static struct resource amlm5900_nor_resource =
            DEFINE_RES_MEM(0x00000000, SZ_16M);

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,
};

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_ohci,
    &s3c_device_rtc,
    &s3c_device_usbgadget,
        &s3c_device_sdi,
    &amlm5900_device_nor,
};

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 */
        s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
        s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
    }
}
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")
    .atag_offset    = 0x100,
    .map_io     = amlm5900_map_io,
    .init_irq   = s3c24xx_init_irq,
    .init_machine   = amlm5900_init,
    .timer      = &s3c24xx_timer,
    .restart    = s3c2410_restart,
MACHINE_END