diff options
author | Bernd Schmidt <bernd.schmidt@analog.com> | 2008-01-11 03:58:44 -0500 |
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committer | Bryan Wu <bryan.wu@analog.com> | 2008-01-11 03:58:44 -0500 |
commit | 7a1a6d00618bce53ae88e501ff5d4b82522db926 (patch) | |
tree | 9e54215c764c16386f9874cace4cace5e2854131 /arch/blackfin/mach-common/cplbhdlr.S | |
parent | aee3a29240ad167ad7875d859506d8bb90431c70 (diff) |
[Blackfin] arch: move all code related to CPLB handling into a new subdirectory under kernel/
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'arch/blackfin/mach-common/cplbhdlr.S')
-rw-r--r-- | arch/blackfin/mach-common/cplbhdlr.S | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/arch/blackfin/mach-common/cplbhdlr.S b/arch/blackfin/mach-common/cplbhdlr.S deleted file mode 100644 index 2788532de72..00000000000 --- a/arch/blackfin/mach-common/cplbhdlr.S +++ /dev/null | |||
@@ -1,130 +0,0 @@ | |||
1 | /* | ||
2 | * File: arch/blackfin/mach-common/cplbhdlr.S | ||
3 | * Based on: | ||
4 | * Author: LG Soft India | ||
5 | * | ||
6 | * Created: ? | ||
7 | * Description: CPLB exception handler | ||
8 | * | ||
9 | * Modified: | ||
10 | * Copyright 2004-2006 Analog Devices Inc. | ||
11 | * | ||
12 | * Bugs: Enter bugs at http://blackfin.uclinux.org/ | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or modify | ||
15 | * it under the terms of the GNU General Public License as published by | ||
16 | * the Free Software Foundation; either version 2 of the License, or | ||
17 | * (at your option) any later version. | ||
18 | * | ||
19 | * This program is distributed in the hope that it will be useful, | ||
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
22 | * GNU General Public License for more details. | ||
23 | * | ||
24 | * You should have received a copy of the GNU General Public License | ||
25 | * along with this program; if not, see the file COPYING, or write | ||
26 | * to the Free Software Foundation, Inc., | ||
27 | * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
28 | */ | ||
29 | |||
30 | #include <linux/linkage.h> | ||
31 | #include <asm/cplb.h> | ||
32 | #include <asm/entry.h> | ||
33 | |||
34 | #ifdef CONFIG_EXCPT_IRQ_SYSC_L1 | ||
35 | .section .l1.text | ||
36 | #else | ||
37 | .text | ||
38 | #endif | ||
39 | |||
40 | .type _cplb_mgr, STT_FUNC; | ||
41 | .type _panic_cplb_error, STT_FUNC; | ||
42 | |||
43 | .align 2 | ||
44 | |||
45 | ENTRY(__cplb_hdr) | ||
46 | R2 = SEQSTAT; | ||
47 | |||
48 | /* Mask the contents of SEQSTAT and leave only EXCAUSE in R2 */ | ||
49 | R2 <<= 26; | ||
50 | R2 >>= 26; | ||
51 | |||
52 | R1 = 0x23; /* Data access CPLB protection violation */ | ||
53 | CC = R2 == R1; | ||
54 | IF !CC JUMP .Lnot_data_write; | ||
55 | R0 = 2; /* is a write to data space*/ | ||
56 | JUMP .Lis_icplb_miss; | ||
57 | |||
58 | .Lnot_data_write: | ||
59 | R1 = 0x2C; /* CPLB miss on an instruction fetch */ | ||
60 | CC = R2 == R1; | ||
61 | R0 = 0; /* is_data_miss == False*/ | ||
62 | IF CC JUMP .Lis_icplb_miss; | ||
63 | |||
64 | R1 = 0x26; | ||
65 | CC = R2 == R1; | ||
66 | IF !CC JUMP .Lunknown; | ||
67 | |||
68 | R0 = 1; /* is_data_miss == True*/ | ||
69 | |||
70 | .Lis_icplb_miss: | ||
71 | |||
72 | #if defined(CONFIG_BFIN_ICACHE) || defined(CONFIG_BFIN_DCACHE) | ||
73 | # if defined(CONFIG_BFIN_ICACHE) && !defined(CONFIG_BFIN_DCACHE) | ||
74 | R1 = CPLB_ENABLE_ICACHE; | ||
75 | # endif | ||
76 | # if !defined(CONFIG_BFIN_ICACHE) && defined(CONFIG_BFIN_DCACHE) | ||
77 | R1 = CPLB_ENABLE_DCACHE; | ||
78 | # endif | ||
79 | # if defined(CONFIG_BFIN_ICACHE) && defined(CONFIG_BFIN_DCACHE) | ||
80 | R1 = CPLB_ENABLE_DCACHE | CPLB_ENABLE_ICACHE; | ||
81 | # endif | ||
82 | #else | ||
83 | R1 = 0; | ||
84 | #endif | ||
85 | |||
86 | [--SP] = RETS; | ||
87 | CALL _cplb_mgr; | ||
88 | RETS = [SP++]; | ||
89 | CC = R0 == 0; | ||
90 | IF !CC JUMP .Lnot_replaced; | ||
91 | RTS; | ||
92 | |||
93 | /* | ||
94 | * Diagnostic exception handlers | ||
95 | */ | ||
96 | .Lunknown: | ||
97 | R0 = CPLB_UNKNOWN_ERR; | ||
98 | JUMP .Lcplb_error; | ||
99 | |||
100 | .Lnot_replaced: | ||
101 | CC = R0 == CPLB_NO_UNLOCKED; | ||
102 | IF !CC JUMP .Lnext_check; | ||
103 | R0 = CPLB_NO_UNLOCKED; | ||
104 | JUMP .Lcplb_error; | ||
105 | |||
106 | .Lnext_check: | ||
107 | CC = R0 == CPLB_NO_ADDR_MATCH; | ||
108 | IF !CC JUMP .Lnext_check2; | ||
109 | R0 = CPLB_NO_ADDR_MATCH; | ||
110 | JUMP .Lcplb_error; | ||
111 | |||
112 | .Lnext_check2: | ||
113 | CC = R0 == CPLB_PROT_VIOL; | ||
114 | IF !CC JUMP .Lstrange_return_from_cplb_mgr; | ||
115 | R0 = CPLB_PROT_VIOL; | ||
116 | JUMP .Lcplb_error; | ||
117 | |||
118 | .Lstrange_return_from_cplb_mgr: | ||
119 | IDLE; | ||
120 | CSYNC; | ||
121 | JUMP .Lstrange_return_from_cplb_mgr; | ||
122 | |||
123 | .Lcplb_error: | ||
124 | R1 = sp; | ||
125 | SP += -12; | ||
126 | call _panic_cplb_error; | ||
127 | SP += 12; | ||
128 | JUMP _handle_bad_cplb; | ||
129 | |||
130 | ENDPROC(__cplb_hdr) | ||