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bdf21b18 PP |
1 | /* |
2 | * JBS Specific board startup routines. | |
3 | * | |
4 | * Copyright 2005, Embedded Alley Solutions, Inc | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. | |
10 | * | |
11 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
12 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
13 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | |
14 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
15 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
16 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
17 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
18 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
19 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
20 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License along | |
23 | * with this program; if not, write to the Free Software Foundation, Inc., | |
24 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | */ | |
26 | #include <linux/init.h> | |
27 | #include <linux/sched.h> | |
28 | #include <linux/ioport.h> | |
29 | #include <linux/mm.h> | |
30 | #include <linux/console.h> | |
31 | #include <linux/mc146818rtc.h> | |
32 | #include <linux/delay.h> | |
33 | ||
34 | #include <asm/cpu.h> | |
35 | #include <asm/bootinfo.h> | |
36 | #include <asm/irq.h> | |
37 | #include <asm/mipsregs.h> | |
38 | #include <asm/reboot.h> | |
39 | #include <asm/pgtable.h> | |
40 | ||
41 | #include <glb.h> | |
42 | ||
43 | /* CP0 hazard avoidance. */ | |
44 | #define BARRIER __asm__ __volatile__(".set noreorder\n\t" \ | |
45 | "nop; nop; nop; nop; nop; nop;\n\t" \ | |
46 | ".set reorder\n\t") | |
47 | ||
48 | void __init board_setup(void) | |
49 | { | |
89052bd7 | 50 | unsigned long configpr; |
bdf21b18 PP |
51 | |
52 | configpr = read_c0_config7(); | |
53 | configpr |= (1<<19); /* enable tlb */ | |
54 | write_c0_config7(configpr); | |
55 | BARRIER; | |
56 | } |