aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mm/proc-arm6_7.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mm/proc-arm6_7.S')
-rw-r--r--arch/arm/mm/proc-arm6_7.S15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-arm6_7.S b/arch/arm/mm/proc-arm6_7.S
index 540359b475d0..7a705edfa4b2 100644
--- a/arch/arm/mm/proc-arm6_7.S
+++ b/arch/arm/mm/proc-arm6_7.S
@@ -2,6 +2,7 @@
2 * linux/arch/arm/mm/proc-arm6,7.S 2 * linux/arch/arm/mm/proc-arm6,7.S
3 * 3 *
4 * Copyright (C) 1997-2000 Russell King 4 * Copyright (C) 1997-2000 Russell King
5 * hacked for non-paged-MM by Hyok S. Choi, 2003.
5 * 6 *
6 * This program is free software; you can redistribute it and/or modify 7 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as 8 * it under the terms of the GNU General Public License version 2 as
@@ -199,10 +200,12 @@ ENTRY(cpu_arm7_do_idle)
199 */ 200 */
200ENTRY(cpu_arm6_switch_mm) 201ENTRY(cpu_arm6_switch_mm)
201ENTRY(cpu_arm7_switch_mm) 202ENTRY(cpu_arm7_switch_mm)
203#ifdef CONFIG_MMU
202 mov r1, #0 204 mov r1, #0
203 mcr p15, 0, r1, c7, c0, 0 @ flush cache 205 mcr p15, 0, r1, c7, c0, 0 @ flush cache
204 mcr p15, 0, r0, c2, c0, 0 @ update page table ptr 206 mcr p15, 0, r0, c2, c0, 0 @ update page table ptr
205 mcr p15, 0, r1, c5, c0, 0 @ flush TLBs 207 mcr p15, 0, r1, c5, c0, 0 @ flush TLBs
208#endif
206 mov pc, lr 209 mov pc, lr
207 210
208/* 211/*
@@ -214,6 +217,7 @@ ENTRY(cpu_arm7_switch_mm)
214 .align 5 217 .align 5
215ENTRY(cpu_arm6_set_pte) 218ENTRY(cpu_arm6_set_pte)
216ENTRY(cpu_arm7_set_pte) 219ENTRY(cpu_arm7_set_pte)
220#ifdef CONFIG_MMU
217 str r1, [r0], #-2048 @ linux version 221 str r1, [r0], #-2048 @ linux version
218 222
219 eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY 223 eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY
@@ -232,6 +236,7 @@ ENTRY(cpu_arm7_set_pte)
232 movne r2, #0 236 movne r2, #0
233 237
234 str r2, [r0] @ hardware version 238 str r2, [r0] @ hardware version
239#endif /* CONFIG_MMU */
235 mov pc, lr 240 mov pc, lr
236 241
237/* 242/*
@@ -243,7 +248,9 @@ ENTRY(cpu_arm6_reset)
243ENTRY(cpu_arm7_reset) 248ENTRY(cpu_arm7_reset)
244 mov r1, #0 249 mov r1, #0
245 mcr p15, 0, r1, c7, c0, 0 @ flush cache 250 mcr p15, 0, r1, c7, c0, 0 @ flush cache
251#ifdef CONFIG_MMU
246 mcr p15, 0, r1, c5, c0, 0 @ flush TLB 252 mcr p15, 0, r1, c5, c0, 0 @ flush TLB
253#endif
247 mov r1, #0x30 254 mov r1, #0x30
248 mcr p15, 0, r1, c1, c0, 0 @ turn off MMU etc 255 mcr p15, 0, r1, c1, c0, 0 @ turn off MMU etc
249 mov pc, r0 256 mov pc, r0
@@ -253,19 +260,27 @@ ENTRY(cpu_arm7_reset)
253 .type __arm6_setup, #function 260 .type __arm6_setup, #function
254__arm6_setup: mov r0, #0 261__arm6_setup: mov r0, #0
255 mcr p15, 0, r0, c7, c0 @ flush caches on v3 262 mcr p15, 0, r0, c7, c0 @ flush caches on v3
263#ifdef CONFIG_MMU
256 mcr p15, 0, r0, c5, c0 @ flush TLBs on v3 264 mcr p15, 0, r0, c5, c0 @ flush TLBs on v3
257 mov r0, #0x3d @ . ..RS BLDP WCAM 265 mov r0, #0x3d @ . ..RS BLDP WCAM
258 orr r0, r0, #0x100 @ . ..01 0011 1101 266 orr r0, r0, #0x100 @ . ..01 0011 1101
267#else
268 mov r0, #0x3c @ . ..RS BLDP WCA.
269#endif
259 mov pc, lr 270 mov pc, lr
260 .size __arm6_setup, . - __arm6_setup 271 .size __arm6_setup, . - __arm6_setup
261 272
262 .type __arm7_setup, #function 273 .type __arm7_setup, #function
263__arm7_setup: mov r0, #0 274__arm7_setup: mov r0, #0
264 mcr p15, 0, r0, c7, c0 @ flush caches on v3 275 mcr p15, 0, r0, c7, c0 @ flush caches on v3
276#ifdef CONFIG_MMU
265 mcr p15, 0, r0, c5, c0 @ flush TLBs on v3 277 mcr p15, 0, r0, c5, c0 @ flush TLBs on v3
266 mcr p15, 0, r0, c3, c0 @ load domain access register 278 mcr p15, 0, r0, c3, c0 @ load domain access register
267 mov r0, #0x7d @ . ..RS BLDP WCAM 279 mov r0, #0x7d @ . ..RS BLDP WCAM
268 orr r0, r0, #0x100 @ . ..01 0111 1101 280 orr r0, r0, #0x100 @ . ..01 0111 1101
281#else
282 mov r0, #0x7c @ . ..RS BLDP WCA.
283#endif
269 mov pc, lr 284 mov pc, lr
270 .size __arm7_setup, . - __arm7_setup 285 .size __arm7_setup, . - __arm7_setup
271 286