target/linux/adm5120/files/arch/mips/adm5120/common/setup.c

   1 /*
   2  *  ADM5120 specific setup
   3  *
   4  *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This code was based on the ADM5120 specific port of the Linux 2.6.10 kernel
   7  *  done by Jeroen Vreeken
   8  *      Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
   9  *
  10  *  Jeroen's code was based on the Linux 2.4.xx source codes found in various
  11  *  tarballs released by Edimax for it's ADM5120 based devices
  12  *      Copyright (C) ADMtek Incorporated
  13  *
  14  *  This program is free software; you can redistribute it and/or modify it
  15  *  under the terms of the GNU General Public License version 2 as published
  16  *  by the Free Software Foundation.
  17  *
  18  */
  19
  20 #include <linux/init.h>
  21 #include <linux/kernel.h>
  22 #include <linux/io.h>
  23
  24 #include <asm/reboot.h>
  25 #include <asm/time.h>
  26 #include <asm/mips_machine.h>
  27
  28 #include <asm/mach-adm5120/adm5120_info.h>
  29 #include <asm/mach-adm5120/adm5120_defs.h>
  30 #include <asm/mach-adm5120/adm5120_switch.h>
  31 #include <asm/mach-adm5120/adm5120_platform.h>
  32
  33 void (*adm5120_board_reset)(void);
  34
  35 static char *prom_names[ADM5120_PROM_LAST+1] __initdata = {
  36         [ADM5120_PROM_GENERIC]          = "Generic",
  37         [ADM5120_PROM_CFE]              = "CFE",
  38         [ADM5120_PROM_UBOOT]            = "U-Boot",
  39         [ADM5120_PROM_MYLOADER]         = "MyLoader",
  40         [ADM5120_PROM_ROUTERBOOT]       = "RouterBOOT",
  41         [ADM5120_PROM_BOOTBASE]         = "Bootbase"
  42 };
  43
  44 static void __init adm5120_report(void)
  45 {
  46         printk(KERN_INFO "SoC      : ADM%04X%s revision %d, running "
  47                 "at %ldMHz\n",
  48                 adm5120_product_code,
  49                 adm5120_package_bga() ? "" : "P",
  50                 adm5120_revision, (adm5120_speed / 1000000));
  51         printk(KERN_INFO "Bootdev  : %s flash\n",
  52                 adm5120_nand_boot ? "NAND":"NOR");
  53         printk(KERN_INFO "Prom     : %s\n", prom_names[adm5120_prom_type]);
  54 }
  55
  56 const char *get_system_type(void)
  57 {
  58         return mips_machine_name;
  59 }
  60
  61 static void adm5120_restart(char *command)
  62 {
  63         /* TODO: stop switch before reset */
  64
  65         if (adm5120_board_reset)
  66                 adm5120_board_reset();
  67
  68         SW_WRITE_REG(SWITCH_REG_SOFT_RESET, 1);
  69 }
  70
  71 static void adm5120_halt(void)
  72 {
  73         local_irq_disable();
  74
  75         while (1) {
  76                 if (cpu_wait)
  77                         cpu_wait();
  78         }
  79 }
  80
  81 void __init plat_time_init(void)
  82 {
  83         mips_hpt_frequency = adm5120_speed / 2;
  84 }
  85
  86 void __init plat_mem_setup(void)
  87 {
  88         adm5120_soc_init();
  89         adm5120_mem_init();
  90         adm5120_report();
  91
  92         _machine_restart = adm5120_restart;
  93         _machine_halt = adm5120_halt;
  94         pm_power_off = adm5120_halt;
  95
  96         set_io_port_base(KSEG1);
  97 }
  98
  99 static int __init adm5120_board_setup(void)
 100 {
 101         adm5120_gpio_init();
 102
 103         mips_machine_setup(adm5120_mach_type);
 104
 105         return 0;
 106 }
 107 arch_initcall(adm5120_board_setup);
 108
 109 static void __init adm5120_generic_board_setup(void)
 110 {
 111         adm5120_add_device_uart(0);
 112         adm5120_add_device_uart(1);
 113
 114         adm5120_add_device_flash(0);
 115         adm5120_add_device_switch(6, NULL);
 116 }
 117
 118 MIPS_MACHINE(MACH_ADM5120_GENERIC, "Generic ADM5120 board",
 119                 adm5120_generic_board_setup);