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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-28 19:20:49 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-28 19:20:49 -0400
commit27d68a36c4f1ca2fc6be82620843493462c08c51 (patch)
treea06b451e19c25a77595c918ca81bbb30f0ec9ebf /arch/arm/mm/proc-arm1026.S
parent76a22271fd14e3fe7660f8646db12f0780fa4fd2 (diff)
parent583e7f5d36547f0d84caf71d43b71f0530a47766 (diff)
Merge branch 'nommu' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'nommu' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] nommu: backtrace code must not reference a discarded section [ARM] nommu: Initial uCLinux support for MMU-based CPUs [ARM] nommu: prevent Xscale-based machines being selected [ARM] nommu: export flush_dcache_page() [ARM] nommu: remove fault-armv, mmap and mm-armv files from nommu build [ARM] Remove TABLE_SIZE, and several unused function prototypes [ARM] nommu: Provide a simple flush_dcache_page implementation [ARM] nommu: add arch/arm/Kconfig-nommu to Kconfig files [ARM] nommu: add stubs for ioremap and friends [ARM] nommu: avoid selecting TLB and CPU specific copy code [ARM] nommu: uaccess tweaks [ARM] nommu: adjust headers for !MMU ARM systems [ARM] nommu: we need the TLS register emulation for nommu mode
Diffstat (limited to 'arch/arm/mm/proc-arm1026.S')
-rw-r--r--arch/arm/mm/proc-arm1026.S9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S
index 148c111fde73..abe850c9a641 100644
--- a/arch/arm/mm/proc-arm1026.S
+++ b/arch/arm/mm/proc-arm1026.S
@@ -3,6 +3,7 @@
3 * 3 *
4 * Copyright (C) 2000 ARM Limited 4 * Copyright (C) 2000 ARM Limited
5 * Copyright (C) 2000 Deep Blue Solutions Ltd. 5 * Copyright (C) 2000 Deep Blue Solutions Ltd.
6 * hacked for non-paged-MM by Hyok S. Choi, 2003.
6 * 7 *
7 * This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
@@ -90,7 +91,9 @@ ENTRY(cpu_arm1026_reset)
90 mov ip, #0 91 mov ip, #0
91 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches 92 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches
92 mcr p15, 0, ip, c7, c10, 4 @ drain WB 93 mcr p15, 0, ip, c7, c10, 4 @ drain WB
94#ifdef CONFIG_MMU
93 mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs 95 mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
96#endif
94 mrc p15, 0, ip, c1, c0, 0 @ ctrl register 97 mrc p15, 0, ip, c1, c0, 0 @ ctrl register
95 bic ip, ip, #0x000f @ ............wcam 98 bic ip, ip, #0x000f @ ............wcam
96 bic ip, ip, #0x1100 @ ...i...s........ 99 bic ip, ip, #0x1100 @ ...i...s........
@@ -327,6 +330,7 @@ ENTRY(cpu_arm1026_dcache_clean_area)
327 */ 330 */
328 .align 5 331 .align 5
329ENTRY(cpu_arm1026_switch_mm) 332ENTRY(cpu_arm1026_switch_mm)
333#ifdef CONFIG_MMU
330 mov r1, #0 334 mov r1, #0
331#ifndef CONFIG_CPU_DCACHE_DISABLE 335#ifndef CONFIG_CPU_DCACHE_DISABLE
3321: mrc p15, 0, r15, c7, c14, 3 @ test, clean, invalidate 3361: mrc p15, 0, r15, c7, c14, 3 @ test, clean, invalidate
@@ -338,6 +342,7 @@ ENTRY(cpu_arm1026_switch_mm)
338 mcr p15, 0, r1, c7, c10, 4 @ drain WB 342 mcr p15, 0, r1, c7, c10, 4 @ drain WB
339 mcr p15, 0, r0, c2, c0, 0 @ load page table pointer 343 mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
340 mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs 344 mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs
345#endif
341 mov pc, lr 346 mov pc, lr
342 347
343/* 348/*
@@ -347,6 +352,7 @@ ENTRY(cpu_arm1026_switch_mm)
347 */ 352 */
348 .align 5 353 .align 5
349ENTRY(cpu_arm1026_set_pte) 354ENTRY(cpu_arm1026_set_pte)
355#ifdef CONFIG_MMU
350 str r1, [r0], #-2048 @ linux version 356 str r1, [r0], #-2048 @ linux version
351 357
352 eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY 358 eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY
@@ -374,6 +380,7 @@ ENTRY(cpu_arm1026_set_pte)
374#ifndef CONFIG_CPU_DCACHE_DISABLE 380#ifndef CONFIG_CPU_DCACHE_DISABLE
375 mcr p15, 0, r0, c7, c10, 1 @ clean D entry 381 mcr p15, 0, r0, c7, c10, 1 @ clean D entry
376#endif 382#endif
383#endif /* CONFIG_MMU */
377 mov pc, lr 384 mov pc, lr
378 385
379 386
@@ -384,8 +391,10 @@ __arm1026_setup:
384 mov r0, #0 391 mov r0, #0
385 mcr p15, 0, r0, c7, c7 @ invalidate I,D caches on v4 392 mcr p15, 0, r0, c7, c7 @ invalidate I,D caches on v4
386 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer on v4 393 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer on v4
394#ifdef CONFIG_MMU
387 mcr p15, 0, r0, c8, c7 @ invalidate I,D TLBs on v4 395 mcr p15, 0, r0, c8, c7 @ invalidate I,D TLBs on v4
388 mcr p15, 0, r4, c2, c0 @ load page table pointer 396 mcr p15, 0, r4, c2, c0 @ load page table pointer
397#endif
389#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH 398#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
390 mov r0, #4 @ explicitly disable writeback 399 mov r0, #4 @ explicitly disable writeback
391 mcr p15, 7, r0, c15, c0, 0 400 mcr p15, 7, r0, c15, c0, 0