aboutsummaryrefslogtreecommitdiffstats
path: root/arch/blackfin
diff options
context:
space:
mode:
authorMike Frysinger <vapier.adi@gmail.com>2008-08-13 04:19:36 -0400
committerBryan Wu <cooloney@kernel.org>2008-08-13 04:19:36 -0400
commit15b07536892284449ac5cd9488a8da1054b4295b (patch)
tree3b72702fb06ef04bca2a01fdb5f346f70b0c2849 /arch/blackfin
parent07aa7be5708afb3d9afa68f6f853c98e51bc64b3 (diff)
Blackfin arch: delete unused cache functions
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/mach-common/cache.S115
1 files changed, 0 insertions, 115 deletions
diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S
index 0521b1588204..85f8c79b3c37 100644
--- a/arch/blackfin/mach-common/cache.S
+++ b/arch/blackfin/mach-common/cache.S
@@ -34,81 +34,6 @@
34#include <asm/cache.h> 34#include <asm/cache.h>
35 35
36.text 36.text
37.align 2
38ENTRY(_cache_invalidate)
39
40 /*
41 * Icache or DcacheA or DcacheB Invalidation
42 * or any combination thereof
43 * R0 has bits
44 * CPLB_ENABLE_ICACHE_P,CPLB_ENABLE_DCACHE_P,CPLB_ENABLE_DCACHE2_P
45 * set as required
46 */
47 [--SP] = R7;
48
49 R7 = R0;
50 CC = BITTST(R7,CPLB_ENABLE_ICACHE_P);
51 IF !CC JUMP .Lno_icache;
52 [--SP] = RETS;
53 CALL _icache_invalidate;
54 RETS = [SP++];
55.Lno_icache:
56 CC = BITTST(R7,CPLB_ENABLE_DCACHE_P);
57 IF !CC JUMP .Lno_dcache_a;
58 R0 = 0; /* specifies bank A */
59 [--SP] = RETS;
60 CALL _dcache_invalidate;
61 RETS = [SP++];
62.Lno_dcache_a:
63 CC = BITTST(R7,CPLB_ENABLE_DCACHE2_P);
64 IF !CC JUMP .Lno_dcache_b;
65 R0 = 0;
66 BITSET(R0, 23); /* specifies bank B */
67 [--SP] = RETS;
68 CALL _dcache_invalidate;
69 RETS = [SP++];
70.Lno_dcache_b:
71 R7 = [SP++];
72 RTS;
73ENDPROC(_cache_invalidate)
74
75/* Invalidate the Entire Instruction cache by
76 * disabling IMC bit
77 */
78ENTRY(_icache_invalidate)
79ENTRY(_invalidate_entire_icache)
80 [--SP] = ( R7:5);
81
82 P0.L = LO(IMEM_CONTROL);
83 P0.H = HI(IMEM_CONTROL);
84 R7 = [P0];
85
86 /* Clear the IMC bit , All valid bits in the instruction
87 * cache are set to the invalid state
88 */
89 BITCLR(R7,IMC_P);
90 CLI R6;
91 SSYNC; /* SSYNC required before invalidating cache. */
92 .align 8;
93 [P0] = R7;
94 SSYNC;
95 STI R6;
96
97 /* Configures the instruction cache agian */
98 R6 = (IMC | ENICPLB);
99 R7 = R7 | R6;
100
101 CLI R6;
102 SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */
103 .align 8;
104 [P0] = R7;
105 SSYNC;
106 STI R6;
107
108 ( R7:5) = [SP++];
109 RTS;
110ENDPROC(_invalidate_entire_icache)
111ENDPROC(_icache_invalidate)
112 37
113/* 38/*
114 * blackfin_cache_flush_range(start, end) 39 * blackfin_cache_flush_range(start, end)
@@ -190,46 +115,6 @@ ENTRY(_blackfin_dcache_invalidate_range)
190 RTS; 115 RTS;
191ENDPROC(_blackfin_dcache_invalidate_range) 116ENDPROC(_blackfin_dcache_invalidate_range)
192 117
193/* Invalidate the Entire Data cache by
194 * clearing DMC[1:0] bits
195 */
196ENTRY(_invalidate_entire_dcache)
197ENTRY(_dcache_invalidate)
198 [--SP] = ( R7:6);
199
200 P0.L = LO(DMEM_CONTROL);
201 P0.H = HI(DMEM_CONTROL);
202 R7 = [P0];
203
204 /* Clear the DMC[1:0] bits, All valid bits in the data
205 * cache are set to the invalid state
206 */
207 BITCLR(R7,DMC0_P);
208 BITCLR(R7,DMC1_P);
209 CLI R6;
210 SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */
211 .align 8;
212 [P0] = R7;
213 SSYNC;
214 STI R6;
215
216 /* Configures the data cache again */
217
218 R6 = DMEM_CNTR;
219 R7 = R7 | R6;
220
221 CLI R6;
222 SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */
223 .align 8;
224 [P0] = R7;
225 SSYNC;
226 STI R6;
227
228 ( R7:6) = [SP++];
229 RTS;
230ENDPROC(_dcache_invalidate)
231ENDPROC(_invalidate_entire_dcache)
232
233ENTRY(_blackfin_dcache_flush_range) 118ENTRY(_blackfin_dcache_flush_range)
234 R2 = -L1_CACHE_BYTES; 119 R2 = -L1_CACHE_BYTES;
235 R2 = R0 & R2; 120 R2 = R0 & R2;