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/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 #include <linux/mtd/mtd.h>
  62 #include <linux/mtd/partitions.h>
  63 #include <linux/mtd/map.h>
  64 #include <linux/mtd/physmap.h>
  65
  66 #include "common.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
 117 static struct map_desc amlm5900_iodesc[] __initdata = {
 118 };
 119
 120 #define UCON S3C2410_UCON_DEFAULT
 121 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 122 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 123
 124 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
 125         [0] = {
 126                 .hwport      = 0,
 127                 .flags       = 0,
 128                 .ucon        = UCON,
 129                 .ulcon       = ULCON,
 130                 .ufcon       = UFCON,
 131         },
 132         [1] = {
 133                 .hwport      = 1,
 134                 .flags       = 0,
 135                 .ucon        = UCON,
 136                 .ulcon       = ULCON,
 137                 .ufcon       = UFCON,
 138         },
 139         [2] = {
 140                 .hwport      = 2,
 141                 .flags       = 0,
 142                 .ucon        = UCON,
 143                 .ulcon       = ULCON,
 144                 .ufcon       = UFCON,
 145         }
 146 };
 147
 148
 149 static struct platform_device *amlm5900_devices[] __initdata = {
 150 #ifdef CONFIG_FB_S3C2410
 151         &s3c_device_lcd,
 152 #endif
 153         &s3c_device_adc,
 154         &s3c_device_wdt,
 155         &s3c_device_i2c0,
 156         &s3c_device_ohci,
 157         &s3c_device_rtc,
 158         &s3c_device_usbgadget,
 159         &s3c_device_sdi,
 160         &amlm5900_device_nor,
 161 };
 162
 163 static void __init amlm5900_map_io(void)
 164 {
 165         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
 166         s3c24xx_init_clocks(0);
 167         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
 168 }
 169
 170 #ifdef CONFIG_FB_S3C2410
 171 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
 172         .width          = 160,
 173         .height         = 160,
 174
 175         .type           = S3C2410_LCDCON1_STN4,
 176
 177         .pixclock       = 680000, /* HCLK = 100MHz */
 178         .xres           = 160,
 179         .yres           = 160,
 180         .bpp            = 4,
 181         .left_margin    = 1 << (4 + 3),
 182         .right_margin   = 8 << 3,
 183         .hsync_len      = 48,
 184         .upper_margin   = 0,
 185         .lower_margin   = 0,
 186
 187         .lcdcon5        = 0x00000001,
 188 };
 189
 190 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
 191
 192         .displays = &amlm5900_lcd_info,
 193         .num_displays = 1,
 194         .default_display = 0,
 195
 196         .gpccon =       0xaaaaaaaa,
 197         .gpccon_mask =  0xffffffff,
 198         .gpcup =        0x0000ffff,
 199         .gpcup_mask =   0xffffffff,
 200
 201         .gpdcon =       0xaaaaaaaa,
 202         .gpdcon_mask =  0xffffffff,
 203         .gpdup =        0x0000ffff,
 204         .gpdup_mask =   0xffffffff,
 205 };
 206 #endif
 207
 208 static irqreturn_t
 209 amlm5900_wake_interrupt(int irq, void *ignored)
 210 {
 211         return IRQ_HANDLED;
 212 }
 213
 214 static void amlm5900_init_pm(void)
 215 {
 216         int ret = 0;
 217
 218         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
 219                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
 220                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
 221         if (ret != 0) {
 222                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
 223         } else {
 224                 enable_irq_wake(IRQ_EINT9);
 225                 /* configure the suspend/resume status pin */
 226                 s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
 227                 s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
 228         }
 229 }
 230 static void __init amlm5900_init(void)
 231 {
 232         amlm5900_init_pm();
 233 #ifdef CONFIG_FB_S3C2410
 234         s3c24xx_fb_set_platdata(&amlm5900_fb_info);
 235 #endif
 236         s3c_i2c0_set_platdata(NULL);
 237         platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
 238 }
 239
 240 MACHINE_START(AML_M5900, "AML_M5900")
 241         .atag_offset    = 0x100,
 242         .map_io         = amlm5900_map_io,
 243         .init_irq       = s3c24xx_init_irq,
 244         .init_machine   = amlm5900_init,
 245         .timer          = &s3c24xx_timer,
 246         .restart        = s3c2410_restart,
 247 MACHINE_END