[PATCH 01/08] ARM: shmobile: Fix base address readout in headsmp-scu.S

Magnus Damm magnus.damm at gmail.com
Mon Feb 18 08:46:57 EST 2013


From: Magnus Damm <damm at opensource.se>

Rework the early SCU setup code in headsmp-scu.S to read
the base address in the same way as we use to fetch the
address of the invalidation function.

Reported-by: Bastian Hecht <hechtb at gmail.com>
Signed-off-by: Magnus Damm <damm at opensource.se>
---

 Tested on r8a7779. Feel free to add incrementally or fold into:
 [PATCH 05/06] ARM: shmobile: Common shmobile_scu_base in headsmp-scu.S

 Bastian, does this solve your problem?

 arch/arm/mach-shmobile/headsmp-scu.S |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- 0001/arch/arm/mach-shmobile/headsmp-scu.S
+++ work/arch/arm/mach-shmobile/headsmp-scu.S	2013-02-18 16:17:58.000000000 +0900
@@ -39,7 +39,7 @@ ENTRY(shmobile_secondary_vector_scu)
 	mrc     p15, 0, r0, c0, c0, 5	@ read MIPDR
 	and	r0, r0, #3		@ mask out cpu ID
 	lsl	r0, r0, #3		@ we will shift by cpu_id * 8 bits
-	ldr	r1, =shmobile_scu_base
+	ldr	r1, 2f
 	ldr	r1, [r1]		@ SCU base address
 	ldr	r2, [r1, #8]		@ SCU Power Status Register
 	mov	r3, #3
@@ -48,6 +48,7 @@ ENTRY(shmobile_secondary_vector_scu)
 
 	ldr	pc, 1f
 1:	.long shmobile_invalidate_start - PAGE_OFFSET + PLAT_PHYS_OFFSET
+2:	.long shmobile_scu_base - PAGE_OFFSET + PLAT_PHYS_OFFSET
 ENDPROC(shmobile_secondary_vector_scu)
 
 	.text



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