arch/arm/mach-s3c2410/mach-n30.c

   1 /* linux/arch/arm/mach-s3c2410/mach-n30.c
   2  *
   3  * Copyright (c) 2003-2005 Simtec Electronics
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * Copyright (c) 2005 Christer Weinigel <christer@weinigel.se>
   7  *
   8  * There is a wiki with more information about the n30 port at
   9  * http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14 */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/types.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/list.h>
  20 #include <linux/timer.h>
  21 #include <linux/init.h>
  22 #include <linux/delay.h>
  23 #include <linux/serial_core.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/kthread.h>
  26
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29 #include <asm/mach/irq.h>
  30
  31 #include <asm/hardware.h>
  32 #include <asm/io.h>
  33 #include <asm/irq.h>
  34 #include <asm/mach-types.h>
  35
  36 #include <asm/plat-s3c/regs-serial.h>
  37 #include <asm/arch/regs-gpio.h>
  38 #include <asm/plat-s3c/iic.h>
  39
  40 #include <asm/plat-s3c24xx/s3c2410.h>
  41 #include <asm/plat-s3c24xx/clock.h>
  42 #include <asm/plat-s3c24xx/devs.h>
  43 #include <asm/plat-s3c24xx/cpu.h>
  44
  45 static struct map_desc n30_iodesc[] __initdata = {
  46         /* nothing here yet */
  47 };
  48
  49 static struct s3c2410_uartcfg n30_uartcfgs[] = {
  50         /* Normal serial port */
  51         [0] = {
  52                 .hwport      = 0,
  53                 .flags       = 0,
  54                 .ucon        = 0x2c5,
  55                 .ulcon       = 0x03,
  56                 .ufcon       = 0x51,
  57         },
  58         /* IR port */
  59         [1] = {
  60                 .hwport      = 1,
  61                 .flags       = 0,
  62                 .uart_flags  = UPF_CONS_FLOW,
  63                 .ucon        = 0x2c5,
  64                 .ulcon       = 0x43,
  65                 .ufcon       = 0x51,
  66         },
  67         /* The BlueTooth controller is connected to port 2 */
  68         [2] = {
  69                 .hwport      = 2,
  70                 .flags       = 0,
  71                 .ucon        = 0x2c5,
  72                 .ulcon       = 0x03,
  73                 .ufcon       = 0x51,
  74         },
  75 };
  76
  77 static struct platform_device *n30_devices[] __initdata = {
  78         &s3c_device_usb,
  79         &s3c_device_lcd,
  80         &s3c_device_wdt,
  81         &s3c_device_i2c,
  82         &s3c_device_iis,
  83         &s3c_device_usbgadget,
  84 };
  85
  86 static struct s3c2410_platform_i2c n30_i2ccfg = {
  87         .flags          = 0,
  88         .slave_addr     = 0x10,
  89         .bus_freq       = 10*1000,
  90         .max_freq       = 10*1000,
  91 };
  92
  93 static void __init n30_map_io(void)
  94 {
  95         s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
  96         s3c24xx_init_clocks(0);
  97         s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
  98 }
  99
 100 static void __init n30_init_irq(void)
 101 {
 102         s3c24xx_init_irq();
 103 }
 104
 105 /* GPB3 is the line that controls the pull-up for the USB D+ line */
 106
 107 static void __init n30_init(void)
 108 {
 109         s3c_device_i2c.dev.platform_data = &n30_i2ccfg;
 110
 111         /* Turn off suspend on both USB ports, and switch the
 112          * selectable USB port to USB device mode. */
 113
 114         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 115                               S3C2410_MISCCR_USBSUSPND0 |
 116                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 117
 118         platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
 119 }
 120
 121 MACHINE_START(N30, "Acer-N30")
 122         /* Maintainer: Christer Weinigel <christer@weinigel.se>,
 123                                 Ben Dooks <ben-linux@fluff.org>
 124         */
 125         .phys_io        = S3C2410_PA_UART,
 126         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 127         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 128         .timer          = &s3c24xx_timer,
 129         .init_machine   = n30_init,
 130         .init_irq       = n30_init_irq,
 131         .map_io         = n30_map_io,
 132 MACHINE_END
 133
 134 /*
 135     Local variables:
 136         compile-command: "make ARCH=arm CROSS_COMPILE=/usr/local/arm/3.3.2/bin/arm-linux- -k -C ../../.."
 137         c-basic-offset: 8
 138     End:
 139 */