release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-s3c2412/mach-smdk2413.c

   1 /* linux/arch/arm/mach-s3c2412/mach-smdk2413.c
   2  *
   3  * Copyright (c) 2006 Simtec Electronics
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * Thanks to Dimity Andric (TomTom) and Steven Ryu (Samsung) for the
   7  * loans of SMDK2413 to work with.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12 */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/types.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/list.h>
  18 #include <linux/timer.h>
  19 #include <linux/init.h>
  20 #include <linux/gpio.h>
  21 #include <linux/serial_core.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/io.h>
  24
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27 #include <asm/mach/irq.h>
  28
  29 #include <mach/hardware.h>
  30 #include <asm/hardware/iomd.h>
  31 #include <asm/setup.h>
  32 #include <asm/irq.h>
  33 #include <asm/mach-types.h>
  34
  35 //#include <asm/debug-ll.h>
  36 #include <plat/regs-serial.h>
  37 #include <mach/regs-gpio.h>
  38 #include <mach/regs-lcd.h>
  39
  40 #include <mach/idle.h>
  41 #include <plat/udc.h>
  42 #include <plat/iic.h>
  43 #include <mach/fb.h>
  44
  45 #include <plat/s3c2410.h>
  46 #include <plat/s3c2412.h>
  47 #include <plat/clock.h>
  48 #include <plat/devs.h>
  49 #include <plat/cpu.h>
  50
  51 #include <plat/common-smdk.h>
  52
  53 static struct map_desc smdk2413_iodesc[] __initdata = {
  54 };
  55
  56 static struct s3c2410_uartcfg smdk2413_uartcfgs[] __initdata = {
  57         [0] = {
  58                 .hwport      = 0,
  59                 .flags       = 0,
  60                 .ucon        = 0x3c5,
  61                 .ulcon       = 0x03,
  62                 .ufcon       = 0x51,
  63         },
  64         [1] = {
  65                 .hwport      = 1,
  66                 .flags       = 0,
  67                 .ucon        = 0x3c5,
  68                 .ulcon       = 0x03,
  69                 .ufcon       = 0x51,
  70         },
  71         /* IR port */
  72         [2] = {
  73                 .hwport      = 2,
  74                 .flags       = 0,
  75                 .ucon        = 0x3c5,
  76                 .ulcon       = 0x43,
  77                 .ufcon       = 0x51,
  78         }
  79 };
  80
  81 static void smdk2413_udc_pullup(enum s3c2410_udc_cmd_e cmd)
  82 {
  83         printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
  84
  85         switch (cmd)
  86         {
  87                 case S3C2410_UDC_P_ENABLE :
  88                         gpio_set_value(S3C2410_GPF(2), 1);
  89                         break;
  90                 case S3C2410_UDC_P_DISABLE :
  91                         gpio_set_value(S3C2410_GPF(2), 0);
  92                         break;
  93                 case S3C2410_UDC_P_RESET :
  94                         break;
  95                 default:
  96                         break;
  97         }
  98 }
  99
 100
 101 static struct s3c2410_udc_mach_info smdk2413_udc_cfg __initdata = {
 102         .udc_command            = smdk2413_udc_pullup,
 103 };
 104
 105
 106 static struct platform_device *smdk2413_devices[] __initdata = {
 107         &s3c_device_ohci,
 108         &s3c_device_wdt,
 109         &s3c_device_i2c0,
 110         &s3c_device_iis,
 111         &s3c_device_usbgadget,
 112 };
 113
 114 static void __init smdk2413_fixup(struct machine_desc *desc,
 115                                   struct tag *tags, char **cmdline,
 116                                   struct meminfo *mi)
 117 {
 118         if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) {
 119                 mi->nr_banks=1;
 120                 mi->bank[0].start = 0x30000000;
 121                 mi->bank[0].size = SZ_64M;
 122         }
 123 }
 124
 125 static void __init smdk2413_map_io(void)
 126 {
 127         s3c24xx_init_io(smdk2413_iodesc, ARRAY_SIZE(smdk2413_iodesc));
 128         s3c24xx_init_clocks(12000000);
 129         s3c24xx_init_uarts(smdk2413_uartcfgs, ARRAY_SIZE(smdk2413_uartcfgs));
 130 }
 131
 132 static void __init smdk2413_machine_init(void)
 133 {       /* Turn off suspend on both USB ports, and switch the
 134          * selectable USB port to USB device mode. */
 135
 136         WARN_ON(gpio_request(S3C2410_GPF(2), "udc pull"));
 137         gpio_direction_output(S3C2410_GPF(2), 0);
 138
 139         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 140                               S3C2410_MISCCR_USBSUSPND0 |
 141                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 142
 143
 144         s3c24xx_udc_set_platdata(&smdk2413_udc_cfg);
 145         s3c_i2c0_set_platdata(NULL);
 146
 147         platform_add_devices(smdk2413_devices, ARRAY_SIZE(smdk2413_devices));
 148         smdk_machine_init();
 149 }
 150
 151 MACHINE_START(S3C2413, "S3C2413")
 152         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 153         .phys_io        = S3C2410_PA_UART,
 154         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 155         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 156
 157         .fixup          = smdk2413_fixup,
 158         .init_irq       = s3c24xx_init_irq,
 159         .map_io         = smdk2413_map_io,
 160         .init_machine   = smdk2413_machine_init,
 161         .timer          = &s3c24xx_timer,
 162 MACHINE_END
 163
 164 MACHINE_START(SMDK2412, "SMDK2412")
 165         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 166         .phys_io        = S3C2410_PA_UART,
 167         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 168         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 169
 170         .fixup          = smdk2413_fixup,
 171         .init_irq       = s3c24xx_init_irq,
 172         .map_io         = smdk2413_map_io,
 173         .init_machine   = smdk2413_machine_init,
 174         .timer          = &s3c24xx_timer,
 175 MACHINE_END
 176
 177 MACHINE_START(SMDK2413, "SMDK2413")
 178         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 179         .phys_io        = S3C2410_PA_UART,
 180         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 181         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 182
 183         .fixup          = smdk2413_fixup,
 184         .init_irq       = s3c24xx_init_irq,
 185         .map_io         = smdk2413_map_io,
 186         .init_machine   = smdk2413_machine_init,
 187         .timer          = &s3c24xx_timer,
 188 MACHINE_END