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authorVineet Gupta <vgupta@synopsys.com>2013-06-17 18:27:23 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-10-18 07:45:45 -0700
commit8a229aeadcf9cf6616e56b00babc86607a3b3d1d (patch)
tree740e06b924521af3973fafc09033d1428d1d2555 /arch
parent1176dcded10fd4de79aaac9bb1bd77a4aabdba61 (diff)
downloadvexpress-lsk-8a229aeadcf9cf6616e56b00babc86607a3b3d1d.tar.gz
ARC: Setup Vector Table Base in early boot
commit 05b016ecf5e7a8c24409d8e9effb5d2ec9107708 upstream. Otherwise early boot exceptions such as instructions errors due to configuration mismatch between kernel and hardware go off to la-la land, as opposed to hitting the handler and panic()'ing properly. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arc/kernel/head.S2
-rw-r--r--arch/arc/kernel/irq.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S
index 006dec3fc35..2a913f85a74 100644
--- a/arch/arc/kernel/head.S
+++ b/arch/arc/kernel/head.S
@@ -27,6 +27,8 @@ stext:
; Don't clobber r0-r4 yet. It might have bootloader provided info
;-------------------------------------------------------------------
+ sr @_int_vec_base_lds, [AUX_INTR_VEC_BASE]
+
#ifdef CONFIG_SMP
; Only Boot (Master) proceeds. Others wait in platform dependent way
; IDENTITY Reg [ 3 2 1 0 ]
diff --git a/arch/arc/kernel/irq.c b/arch/arc/kernel/irq.c
index 8115fa53157..e7fd6d2abce 100644
--- a/arch/arc/kernel/irq.c
+++ b/arch/arc/kernel/irq.c
@@ -32,8 +32,6 @@ void __cpuinit arc_init_IRQ(void)
{
int level_mask = 0;
- write_aux_reg(AUX_INTR_VEC_BASE, _int_vec_base_lds);
-
/* Disable all IRQs: enable them as devices request */
write_aux_reg(AUX_IENABLE, 0);