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   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/device.h>
  36 #include <linux/platform_device.h>
  37 #include <linux/proc_fs.h>
  38 #include <linux/serial_core.h>
  39 #include <linux/io.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/mach/irq.h>
  44 #include <asm/mach/flash.h>
  45
  46 #include <mach/hardware.h>
  47 #include <asm/irq.h>
  48 #include <asm/mach-types.h>
  49 #include <mach/fb.h>
  50
  51 #include <plat/regs-serial.h>
  52 #include <mach/regs-lcd.h>
  53 #include <mach/regs-gpio.h>
  54
  55 #include <plat/iic.h>
  56 #include <plat/devs.h>
  57 #include <plat/cpu.h>
  58
  59 #ifdef CONFIG_MTD_PARTITIONS
  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 static struct resource amlm5900_nor_resource = {
  67                 .start = 0x00000000,
  68                 .end   = 0x01000000 - 1,
  69                 .flags = IORESOURCE_MEM,
  70 };
  71
  72
  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 #endif
 115
 116 static struct map_desc amlm5900_iodesc[] __initdata = {
 117 };
 118
 119 #define UCON S3C2410_UCON_DEFAULT
 120 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 121 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 122
 123 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
 124         [0] = {
 125                 .hwport      = 0,
 126                 .flags       = 0,
 127                 .ucon        = UCON,
 128                 .ulcon       = ULCON,
 129                 .ufcon       = UFCON,
 130         },
 131         [1] = {
 132                 .hwport      = 1,
 133                 .flags       = 0,
 134                 .ucon        = UCON,
 135                 .ulcon       = ULCON,
 136                 .ufcon       = UFCON,
 137         },
 138         [2] = {
 139                 .hwport      = 2,
 140                 .flags       = 0,
 141                 .ucon        = UCON,
 142                 .ulcon       = ULCON,
 143                 .ufcon       = UFCON,
 144         }
 145 };
 146
 147
 148 static struct platform_device *amlm5900_devices[] __initdata = {
 149 #ifdef CONFIG_FB_S3C2410
 150         &s3c_device_lcd,
 151 #endif
 152         &s3c_device_adc,
 153         &s3c_device_wdt,
 154         &s3c_device_i2c0,
 155         &s3c_device_usb,
 156         &s3c_device_rtc,
 157         &s3c_device_usbgadget,
 158         &s3c_device_sdi,
 159 #ifdef CONFIG_MTD_PARTITIONS
 160         &amlm5900_device_nor,
 161 #endif
 162 };
 163
 164 static void __init amlm5900_map_io(void)
 165 {
 166         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
 167         s3c24xx_init_clocks(0);
 168         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
 169 }
 170
 171 #ifdef CONFIG_FB_S3C2410
 172 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
 173         .width          = 160,
 174         .height         = 160,
 175
 176         .type           = S3C2410_LCDCON1_STN4,
 177
 178         .pixclock       = 680000, /* HCLK = 100MHz */
 179         .xres           = 160,
 180         .yres           = 160,
 181         .bpp            = 4,
 182         .left_margin    = 1 << (4 + 3),
 183         .right_margin   = 8 << 3,
 184         .hsync_len      = 48,
 185         .upper_margin   = 0,
 186         .lower_margin   = 0,
 187
 188         .lcdcon5        = 0x00000001,
 189 };
 190
 191 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
 192
 193         .displays = &amlm5900_lcd_info,
 194         .num_displays = 1,
 195         .default_display = 0,
 196
 197         .gpccon =       0xaaaaaaaa,
 198         .gpccon_mask =  0xffffffff,
 199         .gpcup =        0x0000ffff,
 200         .gpcup_mask =   0xffffffff,
 201
 202         .gpdcon =       0xaaaaaaaa,
 203         .gpdcon_mask =  0xffffffff,
 204         .gpdup =        0x0000ffff,
 205         .gpdup_mask =   0xffffffff,
 206 };
 207 #endif
 208
 209 static irqreturn_t
 210 amlm5900_wake_interrupt(int irq, void *ignored)
 211 {
 212         return IRQ_HANDLED;
 213 }
 214
 215 static void amlm5900_init_pm(void)
 216 {
 217         int ret = 0;
 218
 219         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
 220                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
 221                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
 222         if (ret != 0) {
 223                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
 224         } else {
 225                 enable_irq_wake(IRQ_EINT9);
 226                 /* configure the suspend/resume status pin */
 227                 s3c2410_gpio_cfgpin(S3C2410_GPF2, S3C2410_GPF2_OUTP);
 228                 s3c2410_gpio_pullup(S3C2410_GPF2, 0);
 229         }
 230 }
 231 static void __init amlm5900_init(void)
 232 {
 233         amlm5900_init_pm();
 234 #ifdef CONFIG_FB_S3C2410
 235         s3c24xx_fb_set_platdata(&amlm5900_fb_info);
 236 #endif
 237         s3c_i2c0_set_platdata(NULL);
 238         platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
 239 }
 240
 241 MACHINE_START(AML_M5900, "AML_M5900")
 242         .phys_io        = S3C2410_PA_UART,
 243         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 244         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 245         .map_io         = amlm5900_map_io,
 246         .init_irq       = s3c24xx_init_irq,
 247         .init_machine   = amlm5900_init,
 248         .timer          = &s3c24xx_timer,
 249 MACHINE_END