release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-s3c2410/mach-amlm5900.c

   1 /* linux/arch/arm/mach-s3c2410/mach-amlm5900.c
   2  *
   3  * linux/arch/arm/mach-s3c2410/mach-amlm5900.c
   4  *
   5  * Copyright (c) 2006 American Microsystems Limited
   6  *      David Anders <danders@amltd.com>
   7
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  *
  23  * @History:
  24  * derived from linux/arch/arm/mach-s3c2410/mach-bast.c, written by
  25  * Ben Dooks <ben@simtec.co.uk>
  26  *
  27  ***********************************************************************/
  28
  29 #include <linux/kernel.h>
  30 #include <linux/types.h>
  31 #include <linux/interrupt.h>
  32 #include <linux/list.h>
  33 #include <linux/timer.h>
  34 #include <linux/init.h>
  35 #include <linux/gpio.h>
  36 #include <linux/device.h>
  37 #include <linux/platform_device.h>
  38 #include <linux/proc_fs.h>
  39 #include <linux/serial_core.h>
  40 #include <linux/io.h>
  41
  42 #include <asm/mach/arch.h>
  43 #include <asm/mach/map.h>
  44 #include <asm/mach/irq.h>
  45 #include <asm/mach/flash.h>
  46
  47 #include <mach/hardware.h>
  48 #include <asm/irq.h>
  49 #include <asm/mach-types.h>
  50 #include <mach/fb.h>
  51
  52 #include <plat/regs-serial.h>
  53 #include <mach/regs-lcd.h>
  54 #include <mach/regs-gpio.h>
  55
  56 #include <plat/iic.h>
  57 #include <plat/devs.h>
  58 #include <plat/cpu.h>
  59 #include <plat/gpio-cfg.h>
  60
  61 #ifdef CONFIG_MTD_PARTITIONS
  62
  63 #include <linux/mtd/mtd.h>
  64 #include <linux/mtd/partitions.h>
  65 #include <linux/mtd/map.h>
  66 #include <linux/mtd/physmap.h>
  67
  68 static struct resource amlm5900_nor_resource = {
  69                 .start = 0x00000000,
  70                 .end   = 0x01000000 - 1,
  71                 .flags = IORESOURCE_MEM,
  72 };
  73
  74
  75
  76 static struct mtd_partition amlm5900_mtd_partitions[] = {
  77         {
  78                 .name           = "System",
  79                 .size           = 0x240000,
  80                 .offset         = 0,
  81                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
  82         }, {
  83                 .name           = "Kernel",
  84                 .size           = 0x100000,
  85                 .offset         = MTDPART_OFS_APPEND,
  86         }, {
  87                 .name           = "Ramdisk",
  88                 .size           = 0x300000,
  89                 .offset         = MTDPART_OFS_APPEND,
  90         }, {
  91                 .name           = "JFFS2",
  92                 .size           = 0x9A0000,
  93                 .offset         = MTDPART_OFS_APPEND,
  94         }, {
  95                 .name           = "Settings",
  96                 .size           = MTDPART_SIZ_FULL,
  97                 .offset         = MTDPART_OFS_APPEND,
  98         }
  99 };
 100
 101 static struct physmap_flash_data amlm5900_flash_data = {
 102         .width          = 2,
 103         .parts          = amlm5900_mtd_partitions,
 104         .nr_parts       = ARRAY_SIZE(amlm5900_mtd_partitions),
 105 };
 106
 107 static struct platform_device amlm5900_device_nor = {
 108         .name           = "physmap-flash",
 109         .id             = 0,
 110         .dev = {
 111                         .platform_data = &amlm5900_flash_data,
 112                 },
 113         .num_resources  = 1,
 114         .resource       = &amlm5900_nor_resource,
 115 };
 116 #endif
 117
 118 static struct map_desc amlm5900_iodesc[] __initdata = {
 119 };
 120
 121 #define UCON S3C2410_UCON_DEFAULT
 122 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 123 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 124
 125 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
 126         [0] = {
 127                 .hwport      = 0,
 128                 .flags       = 0,
 129                 .ucon        = UCON,
 130                 .ulcon       = ULCON,
 131                 .ufcon       = UFCON,
 132         },
 133         [1] = {
 134                 .hwport      = 1,
 135                 .flags       = 0,
 136                 .ucon        = UCON,
 137                 .ulcon       = ULCON,
 138                 .ufcon       = UFCON,
 139         },
 140         [2] = {
 141                 .hwport      = 2,
 142                 .flags       = 0,
 143                 .ucon        = UCON,
 144                 .ulcon       = ULCON,
 145                 .ufcon       = UFCON,
 146         }
 147 };
 148
 149
 150 static struct platform_device *amlm5900_devices[] __initdata = {
 151 #ifdef CONFIG_FB_S3C2410
 152         &s3c_device_lcd,
 153 #endif
 154         &s3c_device_adc,
 155         &s3c_device_wdt,
 156         &s3c_device_i2c0,
 157         &s3c_device_ohci,
 158         &s3c_device_rtc,
 159         &s3c_device_usbgadget,
 160         &s3c_device_sdi,
 161 #ifdef CONFIG_MTD_PARTITIONS
 162         &amlm5900_device_nor,
 163 #endif
 164 };
 165
 166 static void __init amlm5900_map_io(void)
 167 {
 168         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
 169         s3c24xx_init_clocks(0);
 170         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
 171 }
 172
 173 #ifdef CONFIG_FB_S3C2410
 174 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
 175         .width          = 160,
 176         .height         = 160,
 177
 178         .type           = S3C2410_LCDCON1_STN4,
 179
 180         .pixclock       = 680000, /* HCLK = 100MHz */
 181         .xres           = 160,
 182         .yres           = 160,
 183         .bpp            = 4,
 184         .left_margin    = 1 << (4 + 3),
 185         .right_margin   = 8 << 3,
 186         .hsync_len      = 48,
 187         .upper_margin   = 0,
 188         .lower_margin   = 0,
 189
 190         .lcdcon5        = 0x00000001,
 191 };
 192
 193 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
 194
 195         .displays = &amlm5900_lcd_info,
 196         .num_displays = 1,
 197         .default_display = 0,
 198
 199         .gpccon =       0xaaaaaaaa,
 200         .gpccon_mask =  0xffffffff,
 201         .gpcup =        0x0000ffff,
 202         .gpcup_mask =   0xffffffff,
 203
 204         .gpdcon =       0xaaaaaaaa,
 205         .gpdcon_mask =  0xffffffff,
 206         .gpdup =        0x0000ffff,
 207         .gpdup_mask =   0xffffffff,
 208 };
 209 #endif
 210
 211 static irqreturn_t
 212 amlm5900_wake_interrupt(int irq, void *ignored)
 213 {
 214         return IRQ_HANDLED;
 215 }
 216
 217 static void amlm5900_init_pm(void)
 218 {
 219         int ret = 0;
 220
 221         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
 222                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
 223                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
 224         if (ret != 0) {
 225                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
 226         } else {
 227                 enable_irq_wake(IRQ_EINT9);
 228                 /* configure the suspend/resume status pin */
 229                 s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
 230                 s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
 231         }
 232 }
 233 static void __init amlm5900_init(void)
 234 {
 235         amlm5900_init_pm();
 236 #ifdef CONFIG_FB_S3C2410
 237         s3c24xx_fb_set_platdata(&amlm5900_fb_info);
 238 #endif
 239         s3c_i2c0_set_platdata(NULL);
 240         platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
 241 }
 242
 243 MACHINE_START(AML_M5900, "AML_M5900")
 244         .phys_io        = S3C2410_PA_UART,
 245         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 246         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 247         .map_io         = amlm5900_map_io,
 248         .init_irq       = s3c24xx_init_irq,
 249         .init_machine   = amlm5900_init,
 250         .timer          = &s3c24xx_timer,
 251 MACHINE_END