arch/mips/philips/pnx8550/stb810/board_setup.c

   1 /*
   2  *  STB810 specific board startup routines.
   3  *
   4  *  Based on the arch/mips/philips/pnx8550/jbs/board_setup.c
   5  *
   6  *  Author: MontaVista Software, Inc.
   7  *          source@mvista.com
   8  *
   9  *  Copyright 2005 MontaVista Software Inc.
  10  *
  11  *  This program is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the
  13  *  Free Software Foundation; either version 2 of the License, or (at your
  14  *  option) any later version.
  15  */
  16
  17 #include <linux/init.h>
  18 #include <linux/sched.h>
  19 #include <linux/ioport.h>
  20 #include <linux/mm.h>
  21 #include <linux/console.h>
  22 #include <linux/mc146818rtc.h>
  23 #include <linux/delay.h>
  24
  25 #include <asm/cpu.h>
  26 #include <asm/bootinfo.h>
  27 #include <asm/irq.h>
  28 #include <asm/mipsregs.h>
  29 #include <asm/reboot.h>
  30 #include <asm/pgtable.h>
  31
  32 #include <glb.h>
  33
  34 void __init board_setup(void)
  35 {
  36         unsigned long config0, configpr;
  37
  38         config0 = read_c0_config();
  39
  40         /* clear all three cache coherency fields */
  41         config0 &= ~(0x7 | (7<<25) | (7<<28));
  42         config0 |= (CONF_CM_DEFAULT | (CONF_CM_DEFAULT<<25) |
  43                         (CONF_CM_DEFAULT<<28));
  44         write_c0_config(config0);
  45
  46         configpr = read_c0_config7();
  47         configpr |= (1<<19); /* enable tlb */
  48         write_c0_config7(configpr);
  49 }