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tx4927_setup.c

/*
 * Author: MontaVista Software, Inc.
 *         source@mvista.com
 *
 * Copyright 2001-2002 MontaVista Software Inc.
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU General Public License as published by the
 *  Free Software Foundation; either version 2 of the License, or (at your
 *  option) any later version.
 *
 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  675 Mass Ave, Cambridge, MA 02139, USA.
 */
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/timex.h>
#include <linux/slab.h>
#include <linux/random.h>
#include <linux/irq.h>
#include <linux/bitops.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mipsregs.h>
#include <asm/system.h>
#include <asm/time.h>
#include <asm/tx4927/tx4927.h>


#undef DEBUG

void dump_cp0(char *key);


void __init plat_mem_setup(void)
{
#ifdef CONFIG_TOSHIBA_RBTX4927
      {
            extern void toshiba_rbtx4927_setup(void);
            toshiba_rbtx4927_setup();
      }
#endif
}

void __init plat_time_init(void)
{
#ifdef CONFIG_TOSHIBA_RBTX4927
      {
            extern void toshiba_rbtx4927_time_init(void);
            toshiba_rbtx4927_time_init();
      }
#endif
}

#ifdef DEBUG
void print_cp0(char *key, int num, char *name, u32 val)
{
      printk("%s cp0:%02d:%s=0x%08x\n", key, num, name, val);
      return;
}

void
dump_cp0(char *key)
{
      if (key == NULL)
            key = "";

      print_cp0(key, 0, "INDEX   ", read_c0_index());
      print_cp0(key, 2, "ENTRYLO1", read_c0_entrylo0());
      print_cp0(key, 3, "ENTRYLO2", read_c0_entrylo1());
      print_cp0(key, 4, "CONTEXT ", read_c0_context());
      print_cp0(key, 5, "PAGEMASK", read_c0_pagemask());
      print_cp0(key, 6, "WIRED   ", read_c0_wired());
      //print_cp0(key, 8, "BADVADDR",  read_c0_badvaddr());
      print_cp0(key, 9, "COUNT   ", read_c0_count());
      print_cp0(key, 10, "ENTRYHI ", read_c0_entryhi());
      print_cp0(key, 11, "COMPARE ", read_c0_compare());
      print_cp0(key, 12, "STATUS  ", read_c0_status());
      print_cp0(key, 13, "CAUSE   ", read_c0_cause() & 0xffff87ff);
      print_cp0(key, 16, "CONFIG  ", read_c0_config());
      return;
}

void print_pic(char *key, unsigned long reg, char *name)
{
      printk(KERN_INFO "%s pic:0x%08lx:%s=0x%08x\n", key, reg, name,
             __raw_readl((void __iomem *)reg));
      return;
}


void dump_pic(char *key)
{
      if (key == NULL)
            key = "";

      print_pic(key, 0xff1ff600, "IRDEN    ");
      print_pic(key, 0xff1ff604, "IRDM0    ");
      print_pic(key, 0xff1ff608, "IRDM1    ");

      print_pic(key, 0xff1ff610, "IRLVL0   ");
      print_pic(key, 0xff1ff614, "IRLVL1   ");
      print_pic(key, 0xff1ff618, "IRLVL2   ");
      print_pic(key, 0xff1ff61c, "IRLVL3   ");
      print_pic(key, 0xff1ff620, "IRLVL4   ");
      print_pic(key, 0xff1ff624, "IRLVL5   ");
      print_pic(key, 0xff1ff628, "IRLVL6   ");
      print_pic(key, 0xff1ff62c, "IRLVL7   ");

      print_pic(key, 0xff1ff640, "IRMSK    ");
      print_pic(key, 0xff1ff660, "IREDC    ");
      print_pic(key, 0xff1ff680, "IRPND    ");
      print_pic(key, 0xff1ff6a0, "IRCS     ");

      print_pic(key, 0xff1ff514, "IRFLAG1  ");  /* don't read IRLAG0 -- it hangs system */

      print_pic(key, 0xff1ff518, "IRPOL    ");
      print_pic(key, 0xff1ff51c, "IRRCNT   ");
      print_pic(key, 0xff1ff520, "IRMASKINT");
      print_pic(key, 0xff1ff524, "IRMASKEXT");

      return;
}


void print_addr(char *hdr, char *key, unsigned long addr)
{
      printk(KERN_INFO "%s %s:0x%08lx=0x%08x\n", hdr, key, addr,
             __raw_readl((void __iomem *)addr));
      return;
}


void dump_180(char *key)
{
      u32 i;

      for (i = 0x80000180; i < 0x80000180 + 0x80; i += 4) {
            print_addr("180", key, i);
      }
      return;
}


void dump_eh0(char *key)
{
      int i;
      extern unsigned long exception_handlers[];

      for (i = (int) exception_handlers;
           i < (int) (exception_handlers + 20); i += 4) {
            print_addr("eh0", key, i);
      }

      return;
}

void pk0(void)
{
      volatile u32 val;

      __asm__ __volatile__("ori %0, $26, 0":"=r"(val)
          );
      printk("k0=[0x%08x]\n", val);
}
#endif

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