target/linux/adm5120/files-3.14/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 #include <asm/idle.h>
  31
  32 #include <asm/mach-adm5120/adm5120_info.h>
  33 #include <asm/mach-adm5120/adm5120_defs.h>
  34 #include <asm/mach-adm5120/adm5120_switch.h>
  35 #include <asm/mach-adm5120/adm5120_platform.h>
  36
  37 #define ADM5120_SYS_TYPE_LEN    64
  38
  39 unsigned char adm5120_sys_type[ADM5120_SYS_TYPE_LEN];
  40 void (*adm5120_board_reset)(void);
  41
  42 static char *prom_names[ADM5120_PROM_LAST+1] __initdata = {
  43         [ADM5120_PROM_GENERIC]          = "Generic",
  44         [ADM5120_PROM_CFE]              = "CFE",
  45         [ADM5120_PROM_UBOOT]            = "U-Boot",
  46         [ADM5120_PROM_MYLOADER]         = "MyLoader",
  47         [ADM5120_PROM_ROUTERBOOT]       = "RouterBOOT",
  48         [ADM5120_PROM_BOOTBASE]         = "Bootbase"
  49 };
  50
  51 static void __init adm5120_report(void)
  52 {
  53         printk(KERN_INFO "SoC      : %s\n", adm5120_sys_type);
  54         printk(KERN_INFO "Bootdev  : %s flash\n",
  55                 adm5120_nand_boot ? "NAND" : "NOR");
  56         printk(KERN_INFO "Prom     : %s\n", prom_names[adm5120_prom_type]);
  57 }
  58
  59 const char *get_system_type(void)
  60 {
  61         return adm5120_sys_type;
  62 }
  63
  64 static void adm5120_restart(char *command)
  65 {
  66         /* TODO: stop switch before reset */
  67
  68         if (adm5120_board_reset)
  69                 adm5120_board_reset();
  70
  71         SW_WRITE_REG(SWITCH_REG_SOFT_RESET, 1);
  72 }
  73
  74 static void adm5120_halt(void)
  75 {
  76         local_irq_disable();
  77
  78         while (1) {
  79                 if (cpu_wait)
  80                         cpu_wait();
  81         }
  82 }
  83
  84 void __init plat_time_init(void)
  85 {
  86         mips_hpt_frequency = adm5120_speed / 2;
  87 }
  88
  89 void __init plat_mem_setup(void)
  90 {
  91         adm5120_soc_init();
  92         adm5120_mem_init();
  93
  94         sprintf(adm5120_sys_type, "ADM%04X%s rev %u, running at %lu.%03lu MHz",
  95                 adm5120_product_code,
  96                 adm5120_package_bga() ? "" : "P",
  97                 adm5120_revision,
  98                 (adm5120_speed / 1000000), (adm5120_speed / 1000) % 1000);
  99
 100         adm5120_report();
 101
 102         _machine_restart = adm5120_restart;
 103         _machine_halt = adm5120_halt;
 104         pm_power_off = adm5120_halt;
 105
 106         set_io_port_base(KSEG1);
 107 }
 108
 109 static int __init adm5120_board_setup(void)
 110 {
 111         adm5120_gpio_init();
 112
 113         mips_machine_setup();
 114
 115         return 0;
 116 }
 117 arch_initcall(adm5120_board_setup);
 118
 119 static void __init adm5120_generic_board_setup(void)
 120 {
 121         adm5120_add_device_uart(0);
 122         adm5120_add_device_uart(1);
 123
 124         adm5120_add_device_flash(0);
 125         adm5120_add_device_switch(6, NULL);
 126 }
 127
 128 MIPS_MACHINE(MACH_ADM5120_GENERIC, "Generic", "Generic ADM5120 board",
 129              adm5120_generic_board_setup);