arch/mips/tx4927/common/tx4927_setup.c

   1 /*
   2  * Author: MontaVista Software, Inc.
   3  *         source@mvista.com
   4  *
   5  * Copyright 2001-2002 MontaVista Software Inc.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify it
   8  *  under the terms of the GNU General Public License as published by the
   9  *  Free Software Foundation; either version 2 of the License, or (at your
  10  *  option) any later version.
  11  *
  12  *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  13  *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  14  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  15  *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  16  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  17  *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  18  *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  19  *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  20  *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  21  *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  22  *
  23  *  You should have received a copy of the GNU General Public License along
  24  *  with this program; if not, write to the Free Software Foundation, Inc.,
  25  *  675 Mass Ave, Cambridge, MA 02139, USA.
  26  */
  27 #include <linux/errno.h>
  28 #include <linux/init.h>
  29 #include <linux/kernel_stat.h>
  30 #include <linux/module.h>
  31 #include <linux/signal.h>
  32 #include <linux/sched.h>
  33 #include <linux/types.h>
  34 #include <linux/interrupt.h>
  35 #include <linux/ioport.h>
  36 #include <linux/timex.h>
  37 #include <linux/slab.h>
  38 #include <linux/random.h>
  39 #include <linux/irq.h>
  40 #include <linux/bitops.h>
  41 #include <asm/bootinfo.h>
  42 #include <asm/io.h>
  43 #include <asm/irq.h>
  44 #include <asm/mipsregs.h>
  45 #include <asm/system.h>
  46 #include <asm/time.h>
  47 #include <asm/tx4927/tx4927.h>
  48
  49
  50 #undef DEBUG
  51
  52 void dump_cp0(char *key);
  53
  54
  55 void __init plat_mem_setup(void)
  56 {
  57 #ifdef CONFIG_TOSHIBA_RBTX4927
  58         {
  59                 extern void toshiba_rbtx4927_setup(void);
  60                 toshiba_rbtx4927_setup();
  61         }
  62 #endif
  63 }
  64
  65 void __init plat_time_init(void)
  66 {
  67 #ifdef CONFIG_TOSHIBA_RBTX4927
  68         {
  69                 extern void toshiba_rbtx4927_time_init(void);
  70                 toshiba_rbtx4927_time_init();
  71         }
  72 #endif
  73 }
  74
  75 #ifdef DEBUG
  76 void print_cp0(char *key, int num, char *name, u32 val)
  77 {
  78         printk("%s cp0:%02d:%s=0x%08x\n", key, num, name, val);
  79         return;
  80 }
  81
  82 void
  83 dump_cp0(char *key)
  84 {
  85         if (key == NULL)
  86                 key = "";
  87
  88         print_cp0(key, 0, "INDEX   ", read_c0_index());
  89         print_cp0(key, 2, "ENTRYLO1", read_c0_entrylo0());
  90         print_cp0(key, 3, "ENTRYLO2", read_c0_entrylo1());
  91         print_cp0(key, 4, "CONTEXT ", read_c0_context());
  92         print_cp0(key, 5, "PAGEMASK", read_c0_pagemask());
  93         print_cp0(key, 6, "WIRED   ", read_c0_wired());
  94         //print_cp0(key, 8, "BADVADDR",  read_c0_badvaddr());
  95         print_cp0(key, 9, "COUNT   ", read_c0_count());
  96         print_cp0(key, 10, "ENTRYHI ", read_c0_entryhi());
  97         print_cp0(key, 11, "COMPARE ", read_c0_compare());
  98         print_cp0(key, 12, "STATUS  ", read_c0_status());
  99         print_cp0(key, 13, "CAUSE   ", read_c0_cause() & 0xffff87ff);
 100         print_cp0(key, 16, "CONFIG  ", read_c0_config());
 101         return;
 102 }
 103
 104 void print_pic(char *key, unsigned long reg, char *name)
 105 {
 106         printk(KERN_INFO "%s pic:0x%08lx:%s=0x%08x\n", key, reg, name,
 107                __raw_readl((void __iomem *)reg));
 108         return;
 109 }
 110
 111
 112 void dump_pic(char *key)
 113 {
 114         if (key == NULL)
 115                 key = "";
 116
 117         print_pic(key, 0xff1ff600, "IRDEN    ");
 118         print_pic(key, 0xff1ff604, "IRDM0    ");
 119         print_pic(key, 0xff1ff608, "IRDM1    ");
 120
 121         print_pic(key, 0xff1ff610, "IRLVL0   ");
 122         print_pic(key, 0xff1ff614, "IRLVL1   ");
 123         print_pic(key, 0xff1ff618, "IRLVL2   ");
 124         print_pic(key, 0xff1ff61c, "IRLVL3   ");
 125         print_pic(key, 0xff1ff620, "IRLVL4   ");
 126         print_pic(key, 0xff1ff624, "IRLVL5   ");
 127         print_pic(key, 0xff1ff628, "IRLVL6   ");
 128         print_pic(key, 0xff1ff62c, "IRLVL7   ");
 129
 130         print_pic(key, 0xff1ff640, "IRMSK    ");
 131         print_pic(key, 0xff1ff660, "IREDC    ");
 132         print_pic(key, 0xff1ff680, "IRPND    ");
 133         print_pic(key, 0xff1ff6a0, "IRCS     ");
 134
 135         print_pic(key, 0xff1ff514, "IRFLAG1  ");        /* don't read IRLAG0 -- it hangs system */
 136
 137         print_pic(key, 0xff1ff518, "IRPOL    ");
 138         print_pic(key, 0xff1ff51c, "IRRCNT   ");
 139         print_pic(key, 0xff1ff520, "IRMASKINT");
 140         print_pic(key, 0xff1ff524, "IRMASKEXT");
 141
 142         return;
 143 }
 144
 145
 146 void print_addr(char *hdr, char *key, unsigned long addr)
 147 {
 148         printk(KERN_INFO "%s %s:0x%08lx=0x%08x\n", hdr, key, addr,
 149                __raw_readl((void __iomem *)addr));
 150         return;
 151 }
 152
 153
 154 void dump_180(char *key)
 155 {
 156         u32 i;
 157
 158         for (i = 0x80000180; i < 0x80000180 + 0x80; i += 4) {
 159                 print_addr("180", key, i);
 160         }
 161         return;
 162 }
 163
 164
 165 void dump_eh0(char *key)
 166 {
 167         int i;
 168         extern unsigned long exception_handlers[];
 169
 170         for (i = (int) exception_handlers;
 171              i < (int) (exception_handlers + 20); i += 4) {
 172                 print_addr("eh0", key, i);
 173         }
 174
 175         return;
 176 }
 177
 178 void pk0(void)
 179 {
 180         volatile u32 val;
 181
 182         __asm__ __volatile__("ori %0, $26, 0":"=r"(val)
 183             );
 184         printk("k0=[0x%08x]\n", val);
 185 }
 186 #endif