target/linux/adm5120/files/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
  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 #define ADM5120_SYS_TYPE_LEN    64
  34
  35 unsigned char adm5120_sys_type[ADM5120_SYS_TYPE_LEN];
  36 void (*adm5120_board_reset)(void);
  37
  38 static char *prom_names[ADM5120_PROM_LAST+1] __initdata = {
  39         [ADM5120_PROM_GENERIC]          = "Generic",
  40         [ADM5120_PROM_CFE]              = "CFE",
  41         [ADM5120_PROM_UBOOT]            = "U-Boot",
  42         [ADM5120_PROM_MYLOADER]         = "MyLoader",
  43         [ADM5120_PROM_ROUTERBOOT]       = "RouterBOOT",
  44         [ADM5120_PROM_BOOTBASE]         = "Bootbase"
  45 };
  46
  47 static void __init adm5120_report(void)
  48 {
  49         printk(KERN_INFO "SoC      : %s\n", adm5120_sys_type);
  50         printk(KERN_INFO "Bootdev  : %s flash\n",
  51                 adm5120_nand_boot ? "NAND":"NOR");
  52         printk(KERN_INFO "Prom     : %s\n", prom_names[adm5120_prom_type]);
  53 }
  54
  55 const char *get_system_type(void)
  56 {
  57         return adm5120_sys_type;
  58 }
  59
  60 static void adm5120_restart(char *command)
  61 {
  62         /* TODO: stop switch before reset */
  63
  64         if (adm5120_board_reset)
  65                 adm5120_board_reset();
  66
  67         SW_WRITE_REG(SWITCH_REG_SOFT_RESET, 1);
  68 }
  69
  70 static void adm5120_halt(void)
  71 {
  72         local_irq_disable();
  73
  74         while (1) {
  75                 if (cpu_wait)
  76                         cpu_wait();
  77         }
  78 }
  79
  80 void __init plat_time_init(void)
  81 {
  82         mips_hpt_frequency = adm5120_speed / 2;
  83 }
  84
  85 void __init plat_mem_setup(void)
  86 {
  87         adm5120_soc_init();
  88         adm5120_mem_init();
  89
  90         sprintf(adm5120_sys_type, "ADM%04X%s rev %u, running at %lu.%03lu MHz",
  91                 adm5120_product_code,
  92                 adm5120_package_bga() ? "" : "P",
  93                 adm5120_revision,
  94                 (adm5120_speed / 1000000), (adm5120_speed / 1000) % 1000);
  95
  96         adm5120_report();
  97
  98         _machine_restart = adm5120_restart;
  99         _machine_halt = adm5120_halt;
 100         pm_power_off = adm5120_halt;
 101
 102         set_io_port_base(KSEG1);
 103 }
 104
 105 static int __init adm5120_board_setup(void)
 106 {
 107         adm5120_gpio_init();
 108
 109         mips_machine_setup(adm5120_mach_type);
 110
 111         return 0;
 112 }
 113 arch_initcall(adm5120_board_setup);
 114
 115 static void __init adm5120_generic_board_setup(void)
 116 {
 117         adm5120_add_device_uart(0);
 118         adm5120_add_device_uart(1);
 119
 120         adm5120_add_device_flash(0);
 121         adm5120_add_device_switch(6, NULL);
 122 }
 123
 124 MIPS_MACHINE(MACH_ADM5120_GENERIC, "Generic ADM5120 board",
 125                 adm5120_generic_board_setup);