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-rw-r--r--arch/arm/mm/proc-feroceon.S31
1 files changed, 30 insertions, 1 deletions
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index ba3c500584a..db79b62c92f 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -232,6 +232,7 @@ ENTRY(feroceon_coherent_user_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
+ mov r0, #0
mov pc, lr
/*
@@ -414,6 +415,9 @@ ENTRY(feroceon_dma_unmap_area)
mov pc, lr
ENDPROC(feroceon_dma_unmap_area)
+ .globl feroceon_flush_kern_cache_louis
+ .equ feroceon_flush_kern_cache_louis, feroceon_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions feroceon
@@ -430,6 +434,7 @@ ENDPROC(feroceon_dma_unmap_area)
range_alias flush_icache_all
range_alias flush_user_cache_all
range_alias flush_kern_cache_all
+ range_alias flush_kern_cache_louis
range_alias flush_user_cache_range
range_alias coherent_kern_range
range_alias coherent_user_range
@@ -509,7 +514,31 @@ ENTRY(cpu_feroceon_set_pte_ext)
#endif
mov pc, lr
- __CPUINIT
+/* Suspend/resume support: taken from arch/arm/mm/proc-arm926.S */
+.globl cpu_feroceon_suspend_size
+.equ cpu_feroceon_suspend_size, 4 * 3
+#ifdef CONFIG_ARM_CPU_SUSPEND
+ENTRY(cpu_feroceon_do_suspend)
+ stmfd sp!, {r4 - r6, lr}
+ mrc p15, 0, r4, c13, c0, 0 @ PID
+ mrc p15, 0, r5, c3, c0, 0 @ Domain ID
+ mrc p15, 0, r6, c1, c0, 0 @ Control register
+ stmia r0, {r4 - r6}
+ ldmfd sp!, {r4 - r6, pc}
+ENDPROC(cpu_feroceon_do_suspend)
+
+ENTRY(cpu_feroceon_do_resume)
+ mov ip, #0
+ mcr p15, 0, ip, c8, c7, 0 @ invalidate I+D TLBs
+ mcr p15, 0, ip, c7, c7, 0 @ invalidate I+D caches
+ ldmia r0, {r4 - r6}
+ mcr p15, 0, r4, c13, c0, 0 @ PID
+ mcr p15, 0, r5, c3, c0, 0 @ Domain ID
+ mcr p15, 0, r1, c2, c0, 0 @ TTB address
+ mov r0, r6 @ control register
+ b cpu_resume_mmu
+ENDPROC(cpu_feroceon_do_resume)
+#endif
.type __feroceon_setup, #function
__feroceon_setup: