arch/mips/gt64120/ev64120/setup.c

   1 /*
   2  * Copyright (C) 2000 RidgeRun, Inc.
   3  * Author: RidgeRun, Inc.
   4  *   glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
   5  *
   6  *  This program is free software; you can redistribute  it and/or modify it
   7  *  under  the terms of  the GNU General  Public License as published by the
   8  *  Free Software Foundation;  either version 2 of the  License, or (at your
   9  *  option) any later version.
  10  *
  11  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  12  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  13  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  14  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  15  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  16  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  17  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  18  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  19  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  20  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  21  *
  22  *  You should have received a copy of the  GNU General Public License along
  23  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  24  *  675 Mass Ave, Cambridge, MA 02139, USA.
  25  *
  26  */
  27 #include <linux/init.h>
  28 #include <linux/kernel.h>
  29 #include <linux/types.h>
  30 #include <linux/mm.h>
  31 #include <linux/swap.h>
  32 #include <linux/ioport.h>
  33 #include <linux/sched.h>
  34 #include <linux/interrupt.h>
  35 #include <linux/pci.h>
  36 #include <linux/timex.h>
  37 #include <linux/pm.h>
  38
  39 #include <asm/bootinfo.h>
  40 #include <asm/page.h>
  41 #include <asm/io.h>
  42 #include <asm/irq.h>
  43 #include <asm/pci.h>
  44 #include <asm/processor.h>
  45 #include <asm/time.h>
  46 #include <asm/reboot.h>
  47 #include <asm/traps.h>
  48 #include <linux/bootmem.h>
  49
  50 unsigned long gt64120_base = KSEG1ADDR(0x14000000);
  51
  52 /* These functions are used for rebooting or halting the machine*/
  53 extern void galileo_machine_restart(char *command);
  54 extern void galileo_machine_halt(void);
  55 extern void galileo_machine_power_off(void);
  56 /*
  57  *This structure holds pointers to the pci configuration space accesses
  58  *and interrupts allocating routine for device over the PCI
  59  */
  60 extern struct pci_ops galileo_pci_ops;
  61
  62 unsigned long __init prom_free_prom_memory(void)
  63 {
  64         return 0;
  65 }
  66
  67 /*
  68  * Initializes basic routines and structures pointers, memory size (as
  69  * given by the bios and saves the command line.
  70  */
  71
  72 void __init plat_mem_setup(void)
  73 {
  74         _machine_restart = galileo_machine_restart;
  75         _machine_halt = galileo_machine_halt;
  76         pm_power_off = galileo_machine_power_off;
  77
  78         set_io_port_base(KSEG1);
  79 }
  80
  81 const char *get_system_type(void)
  82 {
  83         return "Galileo EV64120A";
  84 }
  85
  86 /*
  87  * Kernel arguments passed by the firmware
  88  *
  89  * $a0 - nothing
  90  * $a1 - holds a pointer to the eprom parameters
  91  * $a2 - nothing
  92  */
  93
  94 void __init prom_init(void)
  95 {
  96         mips_machgroup = MACH_GROUP_GALILEO;
  97         mips_machtype = MACH_EV64120A;
  98
  99         add_memory_region(0, 32 << 20, BOOT_MEM_RAM);
 100 }