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gerrit.cesnet.cz / github / trini / u-boot / f68d0678c878b33fe690e8bcfc9f88b67d870e39 / . / cpu / microblaze / irq.S
blob: e1fc19046c721ee98e0c332c76506f7431ccef35 [file] [log] [blame]
Michal Simek76316a32007-03-11 13:42:58 +0100[diff] [blame]1/*
2 * (C) Copyright 2007 Michal Simek
3 *
4 * Michal SIMEK <monstr@monstr.eu>
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24
25#include <config.h>
Michal Simekfb05f6d2007-05-07 23:58:31 +0200[diff] [blame]26#include <asm/asm.h>
Michal Simek76316a32007-03-11 13:42:58 +0100[diff] [blame]27 .text
28 .global _interrupt_handler
29_interrupt_handler:
30 addi r1, r1, -4
31 swi r2, r1, 0
32 addi r1, r1, -4
33 swi r3, r1, 0
34 addi r1, r1, -4
35 swi r4, r1, 0
36 addi r1, r1, -4
37 swi r5, r1, 0
38 addi r1, r1, -4
39 swi r6, r1, 0
40 addi r1, r1, -4
41 swi r7, r1, 0
42 addi r1, r1, -4
43 swi r8, r1, 0
44 addi r1, r1, -4
45 swi r9, r1, 0
46 addi r1, r1, -4
47 swi r10, r1, 0
48 addi r1, r1, -4
49 swi r11, r1, 0
50 addi r1, r1, -4
51 swi r12, r1, 0
52 addi r1, r1, -4
53 swi r13, r1, 0
54 addi r1, r1, -4
55 swi r14, r1, 0
56 addi r1, r1, -4
57 swi r15, r1, 0
58 addi r1, r1, -4
59 swi r16, r1, 0
60 addi r1, r1, -4
61 swi r17, r1, 0
62 addi r1, r1, -4
63 swi r18, r1, 0
64 addi r1, r1, -4
65 swi r19, r1, 0
66 addi r1, r1, -4
67 swi r20, r1, 0
68 addi r1, r1, -4
69 swi r21, r1, 0
70 addi r1, r1, -4
71 swi r22, r1, 0
72 addi r1, r1, -4
73 swi r23, r1, 0
74 addi r1, r1, -4
75 swi r24, r1, 0
76 addi r1, r1, -4
77 swi r25, r1, 0
78 addi r1, r1, -4
79 swi r26, r1, 0
80 addi r1, r1, -4
81 swi r27, r1, 0
82 addi r1, r1, -4
83 swi r28, r1, 0
84 addi r1, r1, -4
85 swi r29, r1, 0
86 addi r1, r1, -4
87 swi r30, r1, 0
88 addi r1, r1, -4
89 swi r31, r1, 0
90 brlid r15, interrupt_handler
91 nop
92 nop
93 lwi r31, r1, 0
94 addi r1, r1, 4
95 lwi r30, r1, 0
96 addi r1, r1, 4
97 lwi r29, r1, 0
98 addi r1, r1, 4
99 lwi r28, r1, 0
100 addi r1, r1, 4
101 lwi r27, r1, 0
102 addi r1, r1, 4
103 lwi r26, r1, 0
104 addi r1, r1, 4
105 lwi r25, r1, 0
106 addi r1, r1, 4
107 lwi r24, r1, 0
108 addi r1, r1, 4
109 lwi r23, r1, 0
110 addi r1, r1, 4
111 lwi r22, r1, 0
112 addi r1, r1, 4
113 lwi r21, r1, 0
114 addi r1, r1, 4
115 lwi r20, r1, 0
116 addi r1, r1, 4
117 lwi r19, r1, 0
118 addi r1, r1, 4
119 lwi r18, r1, 0
120 addi r1, r1, 4
121 lwi r17, r1, 0
122 addi r1, r1, 4
123 lwi r16, r1, 0
124 addi r1, r1, 4
125 lwi r15, r1, 0
126 addi r1, r1, 4
127 lwi r14, r1, 0
128 addi r1, r1, 4
129 lwi r13, r1, 0
130 addi r1, r1, 4
131 lwi r12, r1, 0
132 addi r1, r1, 4
133 lwi r11, r1, 0
134 addi r1, r1, 4
135 lwi r10, r1, 0
136 addi r1, r1, 4
137 lwi r9, r1, 0
138 addi r1, r1, 4
139 lwi r8, r1, 0
140 addi r1, r1, 4
141 lwi r7, r1, 0
142 addi r1, r1, 4
143 lwi r6, r1, 0
144 addi r1, r1, 4
145 lwi r5, r1, 0
146 addi r1, r1, 4
147 lwi r4, r1, 0
148 addi r1, r1, 4
149 lwi r3, r1, 0
150 addi r1, r1, 4
151 lwi r2, r1, 0
152 addi r1, r1, 4
153
154 /* enable_interrupt */
Michal Simekfb05f6d2007-05-07 23:58:31 +0200[diff] [blame]155#ifdef XILINX_USE_MSR_INSTR
Michal Simek792032b2007-05-07 19:30:12 +0200[diff] [blame]156 msrset r0, 2
Michal Simekfb05f6d2007-05-07 23:58:31 +0200[diff] [blame]157#else
158 /* FIXME unstable in stressed mode - two irqs */
159 nop
160 addi r1, r1, -4
161 swi r12, r1, 0
162 mfs r12, rmsr
163 ori r12, r12, 2
164 mts rmsr, r12
165 lwi r12, r1, 0
166 addi r1, r1, 4
167 nop
168#endif
Michal Simek76316a32007-03-11 13:42:58 +0100[diff] [blame]169 bra r14
170 nop
171 nop
172 .size _interrupt_handler,.-_interrupt_handler