arch/arm/mach-s3c24xx/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/serial_s3c.h>
  41 #include <linux/io.h>
  42
  43 #include <asm/mach/arch.h>
  44 #include <asm/mach/map.h>
  45 #include <asm/mach/irq.h>
  46 #include <asm/mach/flash.h>
  47
  48 #include <mach/hardware.h>
  49 #include <asm/irq.h>
  50 #include <asm/mach-types.h>
  51 #include <mach/fb.h>
  52
  53 #include <mach/regs-lcd.h>
  54 #include <mach/regs-gpio.h>
  55 #include <mach/gpio-samsung.h>
  56
  57 #include <linux/platform_data/i2c-s3c2410.h>
  58 #include <plat/devs.h>
  59 #include <plat/cpu.h>
  60 #include <plat/gpio-cfg.h>
  61
  62 #include <linux/mtd/mtd.h>
  63 #include <linux/mtd/partitions.h>
  64 #include <linux/mtd/map.h>
  65 #include <linux/mtd/physmap.h>
  66
  67 #include <plat/samsung-time.h>
  68
  69 #include "common.h"
  70
  71 static struct resource amlm5900_nor_resource =
  72                         DEFINE_RES_MEM(0x00000000, SZ_16M);
  73
  74 static struct mtd_partition amlm5900_mtd_partitions[] = {
  75         {
  76                 .name           = "System",
  77                 .size           = 0x240000,
  78                 .offset         = 0,
  79                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
  80         }, {
  81                 .name           = "Kernel",
  82                 .size           = 0x100000,
  83                 .offset         = MTDPART_OFS_APPEND,
  84         }, {
  85                 .name           = "Ramdisk",
  86                 .size           = 0x300000,
  87                 .offset         = MTDPART_OFS_APPEND,
  88         }, {
  89                 .name           = "JFFS2",
  90                 .size           = 0x9A0000,
  91                 .offset         = MTDPART_OFS_APPEND,
  92         }, {
  93                 .name           = "Settings",
  94                 .size           = MTDPART_SIZ_FULL,
  95                 .offset         = MTDPART_OFS_APPEND,
  96         }
  97 };
  98
  99 static struct physmap_flash_data amlm5900_flash_data = {
 100         .width          = 2,
 101         .parts          = amlm5900_mtd_partitions,
 102         .nr_parts       = ARRAY_SIZE(amlm5900_mtd_partitions),
 103 };
 104
 105 static struct platform_device amlm5900_device_nor = {
 106         .name           = "physmap-flash",
 107         .id             = 0,
 108         .dev = {
 109                         .platform_data = &amlm5900_flash_data,
 110                 },
 111         .num_resources  = 1,
 112         .resource       = &amlm5900_nor_resource,
 113 };
 114
 115 static struct map_desc amlm5900_iodesc[] __initdata = {
 116 };
 117
 118 #define UCON S3C2410_UCON_DEFAULT
 119 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 120 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 121
 122 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
 123         [0] = {
 124                 .hwport      = 0,
 125                 .flags       = 0,
 126                 .ucon        = UCON,
 127                 .ulcon       = ULCON,
 128                 .ufcon       = UFCON,
 129         },
 130         [1] = {
 131                 .hwport      = 1,
 132                 .flags       = 0,
 133                 .ucon        = UCON,
 134                 .ulcon       = ULCON,
 135                 .ufcon       = UFCON,
 136         },
 137         [2] = {
 138                 .hwport      = 2,
 139                 .flags       = 0,
 140                 .ucon        = UCON,
 141                 .ulcon       = ULCON,
 142                 .ufcon       = UFCON,
 143         }
 144 };
 145
 146
 147 static struct platform_device *amlm5900_devices[] __initdata = {
 148 #ifdef CONFIG_FB_S3C2410
 149         &s3c_device_lcd,
 150 #endif
 151         &s3c_device_adc,
 152         &s3c_device_wdt,
 153         &s3c_device_i2c0,
 154         &s3c_device_ohci,
 155         &s3c_device_rtc,
 156         &s3c_device_usbgadget,
 157         &s3c_device_sdi,
 158         &amlm5900_device_nor,
 159 };
 160
 161 static void __init amlm5900_map_io(void)
 162 {
 163         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
 164         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
 165         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 166 }
 167
 168 static void __init amlm5900_init_time(void)
 169 {
 170         s3c2410_init_clocks(12000000);
 171         samsung_timer_init();
 172 }
 173
 174 #ifdef CONFIG_FB_S3C2410
 175 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
 176         .width          = 160,
 177         .height         = 160,
 178
 179         .type           = S3C2410_LCDCON1_STN4,
 180
 181         .pixclock       = 680000, /* HCLK = 100MHz */
 182         .xres           = 160,
 183         .yres           = 160,
 184         .bpp            = 4,
 185         .left_margin    = 1 << (4 + 3),
 186         .right_margin   = 8 << 3,
 187         .hsync_len      = 48,
 188         .upper_margin   = 0,
 189         .lower_margin   = 0,
 190
 191         .lcdcon5        = 0x00000001,
 192 };
 193
 194 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
 195
 196         .displays = &amlm5900_lcd_info,
 197         .num_displays = 1,
 198         .default_display = 0,
 199
 200         .gpccon =       0xaaaaaaaa,
 201         .gpccon_mask =  0xffffffff,
 202         .gpcup =        0x0000ffff,
 203         .gpcup_mask =   0xffffffff,
 204
 205         .gpdcon =       0xaaaaaaaa,
 206         .gpdcon_mask =  0xffffffff,
 207         .gpdup =        0x0000ffff,
 208         .gpdup_mask =   0xffffffff,
 209 };
 210 #endif
 211
 212 static irqreturn_t
 213 amlm5900_wake_interrupt(int irq, void *ignored)
 214 {
 215         return IRQ_HANDLED;
 216 }
 217
 218 static void amlm5900_init_pm(void)
 219 {
 220         int ret = 0;
 221
 222         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
 223                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
 224                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
 225         if (ret != 0) {
 226                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
 227         } else {
 228                 enable_irq_wake(IRQ_EINT9);
 229                 /* configure the suspend/resume status pin */
 230                 s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
 231                 s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
 232         }
 233 }
 234 static void __init amlm5900_init(void)
 235 {
 236         amlm5900_init_pm();
 237 #ifdef CONFIG_FB_S3C2410
 238         s3c24xx_fb_set_platdata(&amlm5900_fb_info);
 239 #endif
 240         s3c_i2c0_set_platdata(NULL);
 241         platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
 242 }
 243
 244 MACHINE_START(AML_M5900, "AML_M5900")
 245         .atag_offset    = 0x100,
 246         .map_io         = amlm5900_map_io,
 247         .init_irq       = s3c2410_init_irq,
 248         .init_machine   = amlm5900_init,
 249         .init_time      = amlm5900_init_time,
 250         .restart        = s3c2410_restart,
 251 MACHINE_END