X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Farm%2Fmm%2Fproc-arm1020.S;fp=arch%2Farm%2Fmm%2Fproc-arm1020.S;h=1d8316f3cecfbe124fa6fe1ed6cdc4fa78b3206e;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=959588884fa5ea38afe966938120370dff0ce05f;hpb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57;p=linux-2.6.git

diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index 959588884..1d8316f3c 100644
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -3,6 +3,7 @@
  *
  *  Copyright (C) 2000 ARM Limited
  *  Copyright (C) 2000 Deep Blue Solutions Ltd.
+ *  hacked for non-paged-MM by Hyok S. Choi, 2003.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -25,7 +26,6 @@
  *  CONFIG_CPU_ARM1020_CPU_IDLE -> nohlt
  */
 #include <linux/linkage.h>
-#include <linux/config.h>
 #include <linux/init.h>
 #include <asm/assembler.h>
 #include <asm/asm-offsets.h>
@@ -34,6 +34,8 @@
 #include <asm/procinfo.h>
 #include <asm/ptrace.h>
 
+#include "proc-macros.S"
+
 /*
  * This is the maximum size of an area which will be invalidated
  * using the single invalidate entry instructions.  Anything larger
@@ -101,7 +103,9 @@ ENTRY(cpu_arm1020_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
 	mcr	p15, 0, ip, c7, c10, 4		@ drain WB
+#ifdef CONFIG_MMU
 	mcr	p15, 0, ip, c8, c7, 0		@ invalidate I & D TLBs
+#endif
 	mrc	p15, 0, ip, c1, c0, 0		@ ctrl register
 	bic	ip, ip, #0x000f 		@ ............wcam
 	bic	ip, ip, #0x1100 		@ ...i...s........
@@ -359,6 +363,7 @@ ENTRY(cpu_arm1020_dcache_clean_area)
  */
 	.align	5
 ENTRY(cpu_arm1020_switch_mm)
+#ifdef CONFIG_MMU
 #ifndef CONFIG_CPU_DCACHE_DISABLE
 	mcr	p15, 0, r3, c7, c10, 4
 	mov	r1, #0xF			@ 16 segments
@@ -383,6 +388,7 @@ ENTRY(cpu_arm1020_switch_mm)
 	mcr	p15, 0, r1, c7, c10, 4		@ drain WB
 	mcr	p15, 0, r0, c2, c0, 0		@ load page table pointer
 	mcr	p15, 0, r1, c8, c7, 0		@ invalidate I & D TLBs
+#endif /* CONFIG_MMU */
 	mov	pc, lr
         
 /*
@@ -392,6 +398,7 @@ ENTRY(cpu_arm1020_switch_mm)
  */
 	.align	5
 ENTRY(cpu_arm1020_set_pte)
+#ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
 	eor	r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY
@@ -421,6 +428,7 @@ ENTRY(cpu_arm1020_set_pte)
 	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
 #endif
 	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+#endif /* CONFIG_MMU */
 	mov	pc, lr
 
 	__INIT
@@ -430,12 +438,15 @@ __arm1020_setup:
 	mov	r0, #0
 	mcr	p15, 0, r0, c7, c7		@ invalidate I,D caches on v4
 	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer on v4
+#ifdef CONFIG_MMU
 	mcr	p15, 0, r0, c8, c7		@ invalidate I,D TLBs on v4
+#endif
+
+	adr	r5, arm1020_crval
+	ldmia	r5, {r5, r6}
 	mrc	p15, 0, r0, c1, c0		@ get control register v4
-	ldr	r5, arm1020_cr1_clear
 	bic	r0, r0, r5
-	ldr	r5, arm1020_cr1_set
-	orr	r0, r0, r5
+	orr	r0, r0, r6
 #ifdef CONFIG_CPU_CACHE_ROUND_ROBIN
 	orr	r0, r0, #0x4000 		@ .R.. .... .... ....
 #endif
@@ -447,12 +458,9 @@ __arm1020_setup:
 	 * .RVI ZFRS BLDP WCAM
 	 * .011 1001 ..11 0101
 	 */
-	.type	arm1020_cr1_clear, #object
-	.type	arm1020_cr1_set, #object
-arm1020_cr1_clear:
-	.word	0x593f
-arm1020_cr1_set:
-	.word	0x3935
+	.type	arm1020_crval, #object
+arm1020_crval:
+	crval	clear=0x0000593f, mmuset=0x00003935, ucset=0x00001930
 
 	__INITDATA
 
@@ -515,6 +523,9 @@ cpu_arm1020_name:
 __arm1020_proc_info:
 	.long	0x4104a200			@ ARM 1020T (Architecture v5T)
 	.long	0xff0ffff0
+	.long   PMD_TYPE_SECT | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
 	.long   PMD_TYPE_SECT | \
 		PMD_SECT_AP_WRITE | \
 		PMD_SECT_AP_READ