target/linux/adm5120/files-3.8/arch/mips/adm5120/common/setup.c

   1 /*
   2  *  ADM5120 specific setup
   3  *
   4  *  Copyright (C) 2007-2009 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 #include <linux/reboot.h>
  24 #include <linux/time.h>
  25
  26 #include <asm/reboot.h>
  27 #include <asm/time.h>
  28 #include <asm/bootinfo.h>
  29 #include <asm/mips_machine.h>
  30
  31 #include <asm/mach-adm5120/adm5120_info.h>
  32 #include <asm/mach-adm5120/adm5120_defs.h>
  33 #include <asm/mach-adm5120/adm5120_switch.h>
  34 #include <asm/mach-adm5120/adm5120_platform.h>
  35
  36 #define ADM5120_SYS_TYPE_LEN    64
  37
  38 unsigned char adm5120_sys_type[ADM5120_SYS_TYPE_LEN];
  39 void (*adm5120_board_reset)(void);
  40
  41 static char *prom_names[ADM5120_PROM_LAST+1] __initdata = {
  42         [ADM5120_PROM_GENERIC]          = "Generic",
  43         [ADM5120_PROM_CFE]              = "CFE",
  44         [ADM5120_PROM_UBOOT]            = "U-Boot",
  45         [ADM5120_PROM_MYLOADER]         = "MyLoader",
  46         [ADM5120_PROM_ROUTERBOOT]       = "RouterBOOT",
  47         [ADM5120_PROM_BOOTBASE]         = "Bootbase"
  48 };
  49
  50 static void __init adm5120_report(void)
  51 {
  52         printk(KERN_INFO "SoC      : %s\n", adm5120_sys_type);
  53         printk(KERN_INFO "Bootdev  : %s flash\n",
  54                 adm5120_nand_boot ? "NAND" : "NOR");
  55         printk(KERN_INFO "Prom     : %s\n", prom_names[adm5120_prom_type]);
  56 }
  57
  58 const char *get_system_type(void)
  59 {
  60         return adm5120_sys_type;
  61 }
  62
  63 static void adm5120_restart(char *command)
  64 {
  65         /* TODO: stop switch before reset */
  66
  67         if (adm5120_board_reset)
  68                 adm5120_board_reset();
  69
  70         SW_WRITE_REG(SWITCH_REG_SOFT_RESET, 1);
  71 }
  72
  73 static void adm5120_halt(void)
  74 {
  75         local_irq_disable();
  76
  77         while (1) {
  78                 if (cpu_wait)
  79                         cpu_wait();
  80         }
  81 }
  82
  83 void __init plat_time_init(void)
  84 {
  85         mips_hpt_frequency = adm5120_speed / 2;
  86 }
  87
  88 void __init plat_mem_setup(void)
  89 {
  90         adm5120_soc_init();
  91         adm5120_mem_init();
  92
  93         sprintf(adm5120_sys_type, "ADM%04X%s rev %u, running at %lu.%03lu MHz",
  94                 adm5120_product_code,
  95                 adm5120_package_bga() ? "" : "P",
  96                 adm5120_revision,
  97                 (adm5120_speed / 1000000), (adm5120_speed / 1000) % 1000);
  98
  99         adm5120_report();
 100
 101         _machine_restart = adm5120_restart;
 102         _machine_halt = adm5120_halt;
 103         pm_power_off = adm5120_halt;
 104
 105         set_io_port_base(KSEG1);
 106 }
 107
 108 static int __init adm5120_board_setup(void)
 109 {
 110         adm5120_gpio_init();
 111
 112         mips_machine_setup();
 113
 114         return 0;
 115 }
 116 arch_initcall(adm5120_board_setup);
 117
 118 static void __init adm5120_generic_board_setup(void)
 119 {
 120         adm5120_add_device_uart(0);
 121         adm5120_add_device_uart(1);
 122
 123         adm5120_add_device_flash(0);
 124         adm5120_add_device_switch(6, NULL);
 125 }
 126
 127 MIPS_MACHINE(MACH_ADM5120_GENERIC, "Generic", "Generic ADM5120 board",
 128              adm5120_generic_board_setup);