Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 __init tx4927_time_init(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | void dump_cp0(char *key); |
| 54 | |
| 55 | |
Ralf Baechle | 2925aba | 2006-06-18 01:32:22 +0100 | [diff] [blame] | 56 | void __init plat_mem_setup(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | { |
| 58 | board_time_init = tx4927_time_init; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
| 60 | #ifdef CONFIG_TOSHIBA_RBTX4927 |
| 61 | { |
| 62 | extern void toshiba_rbtx4927_setup(void); |
| 63 | toshiba_rbtx4927_setup(); |
| 64 | } |
| 65 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | } |
| 67 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | void __init tx4927_time_init(void) |
| 69 | { |
| 70 | |
| 71 | #ifdef CONFIG_TOSHIBA_RBTX4927 |
| 72 | { |
| 73 | extern void toshiba_rbtx4927_time_init(void); |
| 74 | toshiba_rbtx4927_time_init(); |
| 75 | } |
| 76 | #endif |
| 77 | |
| 78 | return; |
| 79 | } |
| 80 | |
| 81 | |
Ralf Baechle | 54d0a21 | 2006-07-09 21:38:56 +0100 | [diff] [blame] | 82 | void __init plat_timer_setup(struct irqaction *irq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | { |
| 84 | u32 count; |
| 85 | u32 c1; |
| 86 | u32 c2; |
| 87 | |
| 88 | setup_irq(TX4927_IRQ_CPU_TIMER, irq); |
| 89 | |
| 90 | /* to generate the first timer interrupt */ |
| 91 | c1 = read_c0_count(); |
| 92 | count = c1 + (mips_hpt_frequency / HZ); |
| 93 | write_c0_compare(count); |
| 94 | c2 = read_c0_count(); |
| 95 | |
| 96 | #ifdef CONFIG_TOSHIBA_RBTX4927 |
| 97 | { |
| 98 | extern void toshiba_rbtx4927_timer_setup(struct irqaction |
| 99 | *irq); |
| 100 | toshiba_rbtx4927_timer_setup(irq); |
| 101 | } |
| 102 | #endif |
| 103 | |
| 104 | return; |
| 105 | } |
| 106 | |
| 107 | |
| 108 | #ifdef DEBUG |
| 109 | void print_cp0(char *key, int num, char *name, u32 val) |
| 110 | { |
| 111 | printk("%s cp0:%02d:%s=0x%08x\n", key, num, name, val); |
| 112 | return; |
| 113 | } |
| 114 | |
| 115 | indent: Standard input:25: Error:Unexpected end of file |
| 116 | |
| 117 | void |
| 118 | dump_cp0(char *key) |
| 119 | { |
| 120 | if (key == NULL) |
| 121 | key = ""; |
| 122 | |
| 123 | print_cp0(key, 0, "INDEX ", read_c0_index()); |
| 124 | print_cp0(key, 2, "ENTRYLO1", read_c0_entrylo0()); |
| 125 | print_cp0(key, 3, "ENTRYLO2", read_c0_entrylo1()); |
| 126 | print_cp0(key, 4, "CONTEXT ", read_c0_context()); |
| 127 | print_cp0(key, 5, "PAGEMASK", read_c0_pagemask()); |
| 128 | print_cp0(key, 6, "WIRED ", read_c0_wired()); |
| 129 | //print_cp0(key, 8, "BADVADDR", read_c0_badvaddr()); |
| 130 | print_cp0(key, 9, "COUNT ", read_c0_count()); |
| 131 | print_cp0(key, 10, "ENTRYHI ", read_c0_entryhi()); |
| 132 | print_cp0(key, 11, "COMPARE ", read_c0_compare()); |
| 133 | print_cp0(key, 12, "STATUS ", read_c0_status()); |
| 134 | print_cp0(key, 13, "CAUSE ", read_c0_cause() & 0xffff87ff); |
| 135 | print_cp0(key, 16, "CONFIG ", read_c0_config()); |
| 136 | return; |
| 137 | } |
Ralf Baechle | 42a3b4f | 2005-09-03 15:56:17 -0700 | [diff] [blame] | 138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | void print_pic(char *key, u32 reg, char *name) |
| 140 | { |
| 141 | printk("%s pic:0x%08x:%s=0x%08x\n", key, reg, name, |
| 142 | TX4927_RD(reg)); |
| 143 | return; |
| 144 | } |
| 145 | |
| 146 | |
| 147 | void dump_pic(char *key) |
| 148 | { |
| 149 | if (key == NULL) |
| 150 | key = ""; |
| 151 | |
| 152 | print_pic(key, 0xff1ff600, "IRDEN "); |
| 153 | print_pic(key, 0xff1ff604, "IRDM0 "); |
| 154 | print_pic(key, 0xff1ff608, "IRDM1 "); |
| 155 | |
| 156 | print_pic(key, 0xff1ff610, "IRLVL0 "); |
| 157 | print_pic(key, 0xff1ff614, "IRLVL1 "); |
| 158 | print_pic(key, 0xff1ff618, "IRLVL2 "); |
| 159 | print_pic(key, 0xff1ff61c, "IRLVL3 "); |
| 160 | print_pic(key, 0xff1ff620, "IRLVL4 "); |
| 161 | print_pic(key, 0xff1ff624, "IRLVL5 "); |
| 162 | print_pic(key, 0xff1ff628, "IRLVL6 "); |
| 163 | print_pic(key, 0xff1ff62c, "IRLVL7 "); |
| 164 | |
| 165 | print_pic(key, 0xff1ff640, "IRMSK "); |
| 166 | print_pic(key, 0xff1ff660, "IREDC "); |
| 167 | print_pic(key, 0xff1ff680, "IRPND "); |
| 168 | print_pic(key, 0xff1ff6a0, "IRCS "); |
| 169 | |
| 170 | print_pic(key, 0xff1ff514, "IRFLAG1 "); /* don't read IRLAG0 -- it hangs system */ |
| 171 | |
| 172 | print_pic(key, 0xff1ff518, "IRPOL "); |
| 173 | print_pic(key, 0xff1ff51c, "IRRCNT "); |
| 174 | print_pic(key, 0xff1ff520, "IRMASKINT"); |
| 175 | print_pic(key, 0xff1ff524, "IRMASKEXT"); |
| 176 | |
| 177 | return; |
| 178 | } |
| 179 | |
| 180 | |
| 181 | void print_addr(char *hdr, char *key, u32 addr) |
| 182 | { |
| 183 | printk("%s %s:0x%08x=0x%08x\n", hdr, key, addr, TX4927_RD(addr)); |
| 184 | return; |
| 185 | } |
| 186 | |
| 187 | |
| 188 | void dump_180(char *key) |
| 189 | { |
| 190 | u32 i; |
| 191 | |
| 192 | for (i = 0x80000180; i < 0x80000180 + 0x80; i += 4) { |
| 193 | print_addr("180", key, i); |
| 194 | } |
| 195 | return; |
| 196 | } |
| 197 | |
| 198 | |
| 199 | void dump_eh0(char *key) |
| 200 | { |
| 201 | int i; |
| 202 | extern unsigned long exception_handlers[]; |
| 203 | |
| 204 | for (i = (int) exception_handlers; |
| 205 | i < (int) (exception_handlers + 20); i += 4) { |
| 206 | print_addr("eh0", key, i); |
| 207 | } |
| 208 | |
| 209 | return; |
| 210 | } |
| 211 | |
| 212 | void pk0(void) |
| 213 | { |
| 214 | volatile u32 val; |
| 215 | |
| 216 | __asm__ __volatile__("ori %0, $26, 0":"=r"(val) |
| 217 | ); |
| 218 | printk("k0=[0x%08x]\n", val); |
| 219 | } |
| 220 | #endif |