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   1 /***********************************************************************
   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
  39
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/map.h>
  42 #include <asm/mach/irq.h>
  43 #include <asm/mach/flash.h>
  44
  45 #include <asm/hardware.h>
  46 #include <asm/io.h>
  47 #include <asm/irq.h>
  48 #include <asm/mach-types.h>
  49 #include <asm/arch/fb.h>
  50
  51 #include <asm/arch/regs-serial.h>
  52 #include <asm/arch/regs-lcd.h>
  53 #include <asm/arch/regs-gpio.h>
  54
  55 #include "devs.h"
  56 #include "cpu.h"
  57
  58 #ifdef CONFIG_MTD_PARTITIONS
  59
  60 #include <linux/mtd/mtd.h>
  61 #include <linux/mtd/partitions.h>
  62 #include <linux/mtd/map.h>
  63 #include <linux/mtd/physmap.h>
  64
  65 static struct resource amlm5900_nor_resource = {
  66                 .start = 0x00000000,
  67                 .end   = 0x01000000 - 1,
  68                 .flags = IORESOURCE_MEM,
  69 };
  70
  71
  72
  73 static struct mtd_partition amlm5900_mtd_partitions[] = {
  74         {
  75                 .name           = "System",
  76                 .size           = 0x240000,
  77                 .offset         = 0,
  78                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
  79         }, {
  80                 .name           = "Kernel",
  81                 .size           = 0x100000,
  82                 .offset         = MTDPART_OFS_APPEND,
  83         }, {
  84                 .name           = "Ramdisk",
  85                 .size           = 0x300000,
  86                 .offset         = MTDPART_OFS_APPEND,
  87         }, {
  88                 .name           = "JFFS2",
  89                 .size           = 0x9A0000,
  90                 .offset         = MTDPART_OFS_APPEND,
  91         }, {
  92                 .name           = "Settings",
  93                 .size           = MTDPART_SIZ_FULL,
  94                 .offset         = MTDPART_OFS_APPEND,
  95         }
  96 };
  97
  98 static struct physmap_flash_data amlm5900_flash_data = {
  99         .width          = 2,
 100         .parts          = amlm5900_mtd_partitions,
 101         .nr_parts       = ARRAY_SIZE(amlm5900_mtd_partitions),
 102 };
 103
 104 static struct platform_device amlm5900_device_nor = {
 105         .name           = "physmap-flash",
 106         .id             = 0,
 107         .dev = {
 108                         .platform_data = &amlm5900_flash_data,
 109                 },
 110         .num_resources  = 1,
 111         .resource       = &amlm5900_nor_resource,
 112 };
 113 #endif
 114
 115 static struct map_desc amlm5900_iodesc[] __initdata = {
 116         {
 117                 .virtual        = (u32)S3C24XX_VA_SPI,
 118                 .pfn            = __phys_to_pfn(S3C2410_PA_SPI),
 119                 .length         = SZ_1M,
 120                 .type           = MT_DEVICE
 121         }
 122 };
 123
 124 #define UCON S3C2410_UCON_DEFAULT
 125 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 126 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 127
 128 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
 129         [0] = {
 130                 .hwport      = 0,
 131                 .flags       = 0,
 132                 .ucon        = UCON,
 133                 .ulcon       = ULCON,
 134                 .ufcon       = UFCON,
 135         },
 136         [1] = {
 137                 .hwport      = 1,
 138                 .flags       = 0,
 139                 .ucon        = UCON,
 140                 .ulcon       = ULCON,
 141                 .ufcon       = UFCON,
 142         },
 143         [2] = {
 144                 .hwport      = 2,
 145                 .flags       = 0,
 146                 .ucon        = UCON,
 147                 .ulcon       = ULCON,
 148                 .ufcon       = UFCON,
 149         }
 150 };
 151
 152
 153 static struct platform_device *amlm5900_devices[] __initdata = {
 154 #ifdef CONFIG_FB_S3C2410
 155         &s3c_device_lcd,
 156 #endif
 157         &s3c_device_adc,
 158         &s3c_device_wdt,
 159         &s3c_device_i2c,
 160         &s3c_device_usb,
 161         &s3c_device_rtc,
 162         &s3c_device_usbgadget,
 163         &s3c_device_sdi,
 164 #ifdef CONFIG_MTD_PARTITIONS
 165         &amlm5900_device_nor,
 166 #endif
 167 };
 168
 169 static struct s3c24xx_board amlm5900_board __initdata = {
 170         .devices       = amlm5900_devices,
 171         .devices_count = ARRAY_SIZE(amlm5900_devices)
 172 };
 173
 174 void __init amlm5900_map_io(void)
 175 {
 176         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
 177         s3c24xx_init_clocks(0);
 178         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
 179         s3c24xx_set_board(&amlm5900_board);
 180 }
 181
 182 #ifdef CONFIG_FB_S3C2410
 183 static struct s3c2410fb_mach_info __initdata amlm5900_lcd_info = {
 184         .width          = 160,
 185         .height         = 160,
 186
 187 /* commented out until stn patch is submitted
 188 *       .type           = S3C2410_LCDCON1_STN4,
 189 */
 190         .gpccon =       0xaaaaaaaa,
 191         .gpccon_mask =  0xffffffff,
 192         .gpcup =        0x0000ffff,
 193         .gpcup_mask =   0xffffffff,
 194
 195         .gpdcon =       0xaaaaaaaa,
 196         .gpdcon_mask =  0xffffffff,
 197         .gpdup =        0x0000ffff,
 198         .gpdup_mask =   0xffffffff,
 199
 200         .xres           = {
 201                 .min            = 160,
 202                 .max            = 160,
 203                 .defval         = 160,
 204         },
 205
 206         .yres           = {
 207                 .min            = 160,
 208                 .max            = 160,
 209                 .defval         = 160,
 210         },
 211
 212         .bpp            = {
 213                 .min            = 4,
 214                 .max            = 4,
 215                 .defval         = 4,
 216         },
 217
 218         .regs           = {
 219                 .lcdcon1        = 0x00008225,
 220                 .lcdcon2        = 0x0027c000,
 221                 .lcdcon3        = 0x00182708,
 222                 .lcdcon4        = 0x00000002,
 223                 .lcdcon5        = 0x00000001,
 224         }
 225 };
 226 #endif
 227
 228 static irqreturn_t
 229 amlm5900_wake_interrupt(int irq, void *ignored)
 230 {
 231         return IRQ_HANDLED;
 232 }
 233
 234 static void amlm5900_init_pm(void)
 235 {
 236         int ret = 0;
 237
 238         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
 239                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
 240                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
 241         if (ret != 0) {
 242                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
 243         } else {
 244                 enable_irq_wake(IRQ_EINT9);
 245                 /* configure the suspend/resume status pin */
 246                 s3c2410_gpio_cfgpin(S3C2410_GPF2, S3C2410_GPF2_OUTP);
 247                 s3c2410_gpio_pullup(S3C2410_GPF2, 0);
 248         }
 249 }
 250 static void __init amlm5900_init(void)
 251 {
 252         amlm5900_init_pm();
 253 #ifdef CONFIG_FB_S3C2410
 254         s3c24xx_fb_set_platdata(&amlm5900_lcd_info);
 255 #endif
 256 }
 257
 258 MACHINE_START(AML_M5900, "AML_M5900")
 259         .phys_io        = S3C2410_PA_UART,
 260         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 261         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 262         .map_io         = amlm5900_map_io,
 263         .init_irq       = s3c24xx_init_irq,
 264         .init_machine   = amlm5900_init,
 265         .timer          = &s3c24xx_timer,
 266 MACHINE_END