target/linux/rb1xx-2.6/files/arch/mips/adm5120/setup.c

   1 /*
   2  *      Copyright (C) ADMtek Incorporated.
   3  *              Creator : daniell@admtek.com.tw
   4  *      Copyright 1999, 2000 MIPS Technologies, Inc.
   5  *      Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
   6  */
   7
   8 #include <linux/autoconf.h>
   9 #include <linux/init.h>
  10 #include <linux/device.h>
  11 #include <linux/platform_device.h>
  12
  13 #include <asm/reboot.h>
  14 #include <asm/io.h>
  15 #include <asm/time.h>
  16
  17 #include <adm5120_info.h>
  18
  19 #define ADM5120_SOFTRESET       0x12000004
  20 #define STATUS_IE               0x00000001
  21 #define ALLINTS (IE_IRQ0 | IE_IRQ5 | STATUS_IE)
  22
  23 void  mips_time_init(void);
  24
  25 extern unsigned int mips_counter_frequency;
  26
  27 void adm5120_restart(char *command)
  28 {
  29         *(u32*)KSEG1ADDR(ADM5120_SOFTRESET)=1;
  30 }
  31
  32
  33 void adm5120_halt(void)
  34 {
  35         printk(KERN_NOTICE "\n** You can safely turn off the power\n");
  36         while (1);
  37 }
  38
  39
  40 void adm5120_power_off(void)
  41 {
  42         adm5120_halt();
  43 }
  44
  45 void __init adm5120_time_init(void)
  46 {
  47         mips_counter_frequency = adm5120_info.cpu_speed >> 1;
  48 }
  49
  50 void __init plat_timer_setup(struct irqaction *irq)
  51 {
  52         /* to generate the first timer interrupt */
  53         write_c0_compare(read_c0_count()+ mips_counter_frequency/HZ);
  54         clear_c0_status(ST0_BEV);
  55         set_c0_status(ALLINTS);
  56 }
  57
  58 void __init plat_mem_setup(void)
  59 {
  60         printk(KERN_INFO "ADM5120 board setup\n");
  61
  62         board_time_init = adm5120_time_init;
  63         //board_timer_setup = mips_timer_setup;
  64
  65         _machine_restart = adm5120_restart;
  66         _machine_halt = adm5120_halt;
  67         pm_power_off = adm5120_power_off;
  68
  69         set_io_port_base(KSEG1);
  70 }
  71
  72 const char *get_system_type(void)
  73 {
  74         return "ADM5120 Board";
  75 }
  76
  77 static struct resource adm5120_hcd_resources[] = {
  78         [0] = {
  79                 .start  = 0x11200000,
  80                 .end    = 0x11200084,
  81                 .flags  = IORESOURCE_MEM,
  82         },
  83         [1] = {
  84                 .start  = 0x3,
  85                 .end    = 0x3,
  86                 .flags  = IORESOURCE_IRQ,
  87         },
  88 };
  89
  90 static struct platform_device adm5120hcd_device = {
  91         .name           = "adm5120-hcd",
  92         .id             = -1,
  93         .num_resources  = ARRAY_SIZE(adm5120_hcd_resources),
  94         .resource       = adm5120_hcd_resources,
  95 };
  96
  97 static struct platform_device *devices[] __initdata = {
  98         &adm5120hcd_device,
  99 };
 100
 101 static int __init adm5120_init(void)
 102 {
 103         return platform_add_devices(devices, ARRAY_SIZE(devices));
 104 }
 105
 106 subsys_initcall(adm5120_init);