aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mm/proc-sa1100.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mm/proc-sa1100.S')
-rw-r--r--arch/arm/mm/proc-sa1100.S144
1 files changed, 52 insertions, 92 deletions
diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S
index 9afb11d089f..09d241ae2db 100644
--- a/arch/arm/mm/proc-sa1100.S
+++ b/arch/arm/mm/proc-sa1100.S
@@ -22,8 +22,8 @@
#include <linux/init.h>
#include <asm/assembler.h>
#include <asm/asm-offsets.h>
-#include <asm/elf.h>
-#include <asm/hardware.h>
+#include <asm/hwcap.h>
+#include <mach/hardware.h>
#include <asm/pgtable-hwdef.h>
#include <asm/pgtable.h>
@@ -34,7 +34,7 @@
*/
#define DCACHELINESIZE 32
- __INIT
+ .section .text
/*
* cpu_sa1100_proc_init()
@@ -45,8 +45,6 @@ ENTRY(cpu_sa1100_proc_init)
mcr p15, 0, r0, c9, c0, 5 @ Allow read-buffer operations from userland
mov pc, lr
- .previous
-
/*
* cpu_sa1100_proc_fin()
*
@@ -55,16 +53,12 @@ ENTRY(cpu_sa1100_proc_init)
* - Clean and turn off caches.
*/
ENTRY(cpu_sa1100_proc_fin)
- stmfd sp!, {lr}
- mov ip, #PSR_F_BIT | PSR_I_BIT | SVC_MODE
- msr cpsr_c, ip
- bl v4wb_flush_kern_cache_all
mcr p15, 0, ip, c15, c2, 2 @ Disable clock switching
mrc p15, 0, r0, c1, c0, 0 @ ctrl register
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- ldmfd sp!, {pc}
+ mov pc, lr
/*
* cpu_sa1100_reset(loc)
@@ -76,6 +70,7 @@ ENTRY(cpu_sa1100_proc_fin)
* loc: location to jump to for soft reset
*/
.align 5
+ .pushsection .idmap.text, "ax"
ENTRY(cpu_sa1100_reset)
mov ip, #0
mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches
@@ -88,6 +83,8 @@ ENTRY(cpu_sa1100_reset)
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
mov pc, r0
+ENDPROC(cpu_sa1100_reset)
+ .popsection
/*
* cpu_sa1100_do_idle(type)
@@ -166,31 +163,40 @@ ENTRY(cpu_sa1100_switch_mm)
.align 5
ENTRY(cpu_sa1100_set_pte_ext)
#ifdef CONFIG_MMU
- str r1, [r0], #-2048 @ linux version
-
- eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY
-
- bic r2, r1, #PTE_SMALL_AP_MASK
- bic r2, r2, #PTE_TYPE_MASK
- orr r2, r2, #PTE_TYPE_SMALL
-
- tst r1, #L_PTE_USER @ User?
- orrne r2, r2, #PTE_SMALL_AP_URO_SRW
-
- tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty?
- orreq r2, r2, #PTE_SMALL_AP_UNO_SRW
-
- tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young?
- movne r2, #0
-
- str r2, [r0] @ hardware version
+ armv3_set_pte_ext wc_disable=0
mov r0, r0
mcr p15, 0, r0, c7, c10, 1 @ clean D entry
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif
mov pc, lr
- __INIT
+.globl cpu_sa1100_suspend_size
+.equ cpu_sa1100_suspend_size, 4 * 3
+#ifdef CONFIG_ARM_CPU_SUSPEND
+ENTRY(cpu_sa1100_do_suspend)
+ stmfd sp!, {r4 - r6, lr}
+ mrc p15, 0, r4, c3, c0, 0 @ domain ID
+ mrc p15, 0, r5, c13, c0, 0 @ PID
+ mrc p15, 0, r6, c1, c0, 0 @ control reg
+ stmia r0, {r4 - r6} @ store cp regs
+ ldmfd sp!, {r4 - r6, pc}
+ENDPROC(cpu_sa1100_do_suspend)
+
+ENTRY(cpu_sa1100_do_resume)
+ ldmia r0, {r4 - r6} @ load cp regs
+ mov ip, #0
+ mcr p15, 0, ip, c8, c7, 0 @ flush I+D TLBs
+ mcr p15, 0, ip, c7, c7, 0 @ flush I&D cache
+ mcr p15, 0, ip, c9, c0, 0 @ invalidate RB
+ mcr p15, 0, ip, c9, c0, 5 @ allow user space to use RB
+
+ mcr p15, 0, r4, c3, c0, 0 @ domain ID
+ mcr p15, 0, r1, c2, c0, 0 @ translation table base addr
+ mcr p15, 0, r5, c13, c0, 0 @ PID
+ mov r0, r6 @ control register
+ b cpu_resume_mmu
+ENDPROC(cpu_sa1100_do_resume)
+#endif
.type __sa1100_setup, #function
__sa1100_setup:
@@ -221,55 +227,28 @@ sa1100_crval:
__INITDATA
/*
- * Purpose : Function pointers used to access above functions - all calls
- * come through these
- */
-
-/*
* SA1100 and SA1110 share the same function calls
*/
- .type sa1100_processor_functions, #object
-ENTRY(sa1100_processor_functions)
- .word v4_early_abort
- .word cpu_sa1100_proc_init
- .word cpu_sa1100_proc_fin
- .word cpu_sa1100_reset
- .word cpu_sa1100_do_idle
- .word cpu_sa1100_dcache_clean_area
- .word cpu_sa1100_switch_mm
- .word cpu_sa1100_set_pte_ext
- .size sa1100_processor_functions, . - sa1100_processor_functions
-
- .section ".rodata"
-
- .type cpu_arch_name, #object
-cpu_arch_name:
- .asciz "armv4"
- .size cpu_arch_name, . - cpu_arch_name
- .type cpu_elf_name, #object
-cpu_elf_name:
- .asciz "v4"
- .size cpu_elf_name, . - cpu_elf_name
+ @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
+ define_processor_functions sa1100, dabort=v4_early_abort, pabort=legacy_pabort, suspend=1
- .type cpu_sa1100_name, #object
-cpu_sa1100_name:
- .asciz "StrongARM-1100"
- .size cpu_sa1100_name, . - cpu_sa1100_name
+ .section ".rodata"
- .type cpu_sa1110_name, #object
-cpu_sa1110_name:
- .asciz "StrongARM-1110"
- .size cpu_sa1110_name, . - cpu_sa1110_name
+ string cpu_arch_name, "armv4"
+ string cpu_elf_name, "v4"
+ string cpu_sa1100_name, "StrongARM-1100"
+ string cpu_sa1110_name, "StrongARM-1110"
.align
.section ".proc.info.init", #alloc, #execinstr
- .type __sa1100_proc_info,#object
-__sa1100_proc_info:
- .long 0x4401a110
- .long 0xfffffff0
+.macro sa1100_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req
+ .type __\name\()_proc_info,#object
+__\name\()_proc_info:
+ .long \cpu_val
+ .long \cpu_mask
.long PMD_TYPE_SECT | \
PMD_SECT_BUFFERABLE | \
PMD_SECT_CACHEABLE | \
@@ -282,32 +261,13 @@ __sa1100_proc_info:
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_26BIT | HWCAP_FAST_MULT
- .long cpu_sa1100_name
+ .long \cpu_name
.long sa1100_processor_functions
.long v4wb_tlb_fns
.long v4_mc_user_fns
.long v4wb_cache_fns
- .size __sa1100_proc_info, . - __sa1100_proc_info
+ .size __\name\()_proc_info, . - __\name\()_proc_info
+.endm
- .type __sa1110_proc_info,#object
-__sa1110_proc_info:
- .long 0x6901b110
- .long 0xfffffff0
- .long PMD_TYPE_SECT | \
- PMD_SECT_BUFFERABLE | \
- PMD_SECT_CACHEABLE | \
- PMD_SECT_AP_WRITE | \
- PMD_SECT_AP_READ
- .long PMD_TYPE_SECT | \
- PMD_SECT_AP_WRITE | \
- PMD_SECT_AP_READ
- b __sa1100_setup
- .long cpu_arch_name
- .long cpu_elf_name
- .long HWCAP_SWP | HWCAP_HALF | HWCAP_26BIT | HWCAP_FAST_MULT
- .long cpu_sa1110_name
- .long sa1100_processor_functions
- .long v4wb_tlb_fns
- .long v4_mc_user_fns
- .long v4wb_cache_fns
- .size __sa1110_proc_info, . - __sa1110_proc_info
+ sa1100_proc_info sa1100, 0x4401a110, 0xfffffff0, cpu_sa1100_name
+ sa1100_proc_info sa1110, 0x6901b110, 0xfffffff0, cpu_sa1110_name
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 15:46:59 +0000