ARM: Factor out common code from cpu_proc_fin()

All implementations of cpu_proc_fin() start by disabling interrupts
and then flush caches.  Rather than have every processors proc_fin()
implementation do this, move it out into generic code - and move the
cache flush past setup_mm_for_reboot() (so it can benefit from having
caches still enabled.)

This allows cpu_proc_fin() to become independent of the L1/L2 cache
types, and eventually move the L2 cache flushing into the L2 support
code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 5 deletions

diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index e5797f1c1db7..361a51e49030 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -90,15 +90,11 @@ ENTRY(cpu_xsc3_proc_init)
  * cpu_xsc3_proc_fin()
  */
 ENTRY(cpu_xsc3_proc_fin)
-        str     lr, [sp, #-4]!
-        mov     r0, #PSR_F_BIT|PSR_I_BIT|SVC_MODE
-        msr     cpsr_c, r0
-        bl      xsc3_flush_kern_cache_all       @ clean caches
         mrc     p15, 0, r0, c1, c0, 0           @ ctrl register
         bic     r0, r0, #0x1800                 @ ...IZ...........
         bic     r0, r0, #0x0006                 @ .............CA.
         mcr     p15, 0, r0, c1, c0, 0           @ disable caches
-        ldr     pc, [sp], #4
+        mov     pc, lr
 
 /*
  * cpu_xsc3_reset(loc)