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 void __init plat_timer_setup(struct irqaction *irq)
  76 {
  77         setup_irq(TX4927_IRQ_CPU_TIMER, irq);
  78
  79 #ifdef CONFIG_TOSHIBA_RBTX4927
  80         {
  81                 extern void toshiba_rbtx4927_timer_setup(struct irqaction
  82                                                          *irq);
  83                 toshiba_rbtx4927_timer_setup(irq);
  84         }
  85 #endif
  86
  87         return;
  88 }
  89
  90
  91 #ifdef DEBUG
  92 void print_cp0(char *key, int num, char *name, u32 val)
  93 {
  94         printk("%s cp0:%02d:%s=0x%08x\n", key, num, name, val);
  95         return;
  96 }
  97
  98 void
  99 dump_cp0(char *key)
 100 {
 101         if (key == NULL)
 102                 key = "";
 103
 104         print_cp0(key, 0, "INDEX   ", read_c0_index());
 105         print_cp0(key, 2, "ENTRYLO1", read_c0_entrylo0());
 106         print_cp0(key, 3, "ENTRYLO2", read_c0_entrylo1());
 107         print_cp0(key, 4, "CONTEXT ", read_c0_context());
 108         print_cp0(key, 5, "PAGEMASK", read_c0_pagemask());
 109         print_cp0(key, 6, "WIRED   ", read_c0_wired());
 110         //print_cp0(key, 8, "BADVADDR",  read_c0_badvaddr());
 111         print_cp0(key, 9, "COUNT   ", read_c0_count());
 112         print_cp0(key, 10, "ENTRYHI ", read_c0_entryhi());
 113         print_cp0(key, 11, "COMPARE ", read_c0_compare());
 114         print_cp0(key, 12, "STATUS  ", read_c0_status());
 115         print_cp0(key, 13, "CAUSE   ", read_c0_cause() & 0xffff87ff);
 116         print_cp0(key, 16, "CONFIG  ", read_c0_config());
 117         return;
 118 }
 119
 120 void print_pic(char *key, unsigned long reg, char *name)
 121 {
 122         printk(KERN_INFO "%s pic:0x%08lx:%s=0x%08x\n", key, reg, name,
 123                __raw_readl((void __iomem *)reg));
 124         return;
 125 }
 126
 127
 128 void dump_pic(char *key)
 129 {
 130         if (key == NULL)
 131                 key = "";
 132
 133         print_pic(key, 0xff1ff600, "IRDEN    ");
 134         print_pic(key, 0xff1ff604, "IRDM0    ");
 135         print_pic(key, 0xff1ff608, "IRDM1    ");
 136
 137         print_pic(key, 0xff1ff610, "IRLVL0   ");
 138         print_pic(key, 0xff1ff614, "IRLVL1   ");
 139         print_pic(key, 0xff1ff618, "IRLVL2   ");
 140         print_pic(key, 0xff1ff61c, "IRLVL3   ");
 141         print_pic(key, 0xff1ff620, "IRLVL4   ");
 142         print_pic(key, 0xff1ff624, "IRLVL5   ");
 143         print_pic(key, 0xff1ff628, "IRLVL6   ");
 144         print_pic(key, 0xff1ff62c, "IRLVL7   ");
 145
 146         print_pic(key, 0xff1ff640, "IRMSK    ");
 147         print_pic(key, 0xff1ff660, "IREDC    ");
 148         print_pic(key, 0xff1ff680, "IRPND    ");
 149         print_pic(key, 0xff1ff6a0, "IRCS     ");
 150
 151         print_pic(key, 0xff1ff514, "IRFLAG1  ");        /* don't read IRLAG0 -- it hangs system */
 152
 153         print_pic(key, 0xff1ff518, "IRPOL    ");
 154         print_pic(key, 0xff1ff51c, "IRRCNT   ");
 155         print_pic(key, 0xff1ff520, "IRMASKINT");
 156         print_pic(key, 0xff1ff524, "IRMASKEXT");
 157
 158         return;
 159 }
 160
 161
 162 void print_addr(char *hdr, char *key, unsigned long addr)
 163 {
 164         printk(KERN_INFO "%s %s:0x%08lx=0x%08x\n", hdr, key, addr,
 165                __raw_readl((void __iomem *)addr));
 166         return;
 167 }
 168
 169
 170 void dump_180(char *key)
 171 {
 172         u32 i;
 173
 174         for (i = 0x80000180; i < 0x80000180 + 0x80; i += 4) {
 175                 print_addr("180", key, i);
 176         }
 177         return;
 178 }
 179
 180
 181 void dump_eh0(char *key)
 182 {
 183         int i;
 184         extern unsigned long exception_handlers[];
 185
 186         for (i = (int) exception_handlers;
 187              i < (int) (exception_handlers + 20); i += 4) {
 188                 print_addr("eh0", key, i);
 189         }
 190
 191         return;
 192 }
 193
 194 void pk0(void)
 195 {
 196         volatile u32 val;
 197
 198         __asm__ __volatile__("ori %0, $26, 0":"=r"(val)
 199             );
 200         printk("k0=[0x%08x]\n", val);
 201 }
 202 #endif