From 8f19e3daf3fffee9e18a8812067a6a4b538ae6c8 Mon Sep 17 00:00:00 2001
From: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Date: Wed, 27 Oct 2010 17:28:48 +0100
Subject: MN10300: AM34 erratum requires MMUCTR read and write on exception
 entry

An AM34 erratum requires MMUCTR read and write on entry to certain exceptions,
prior to EPSW.NMID being cleared to allow NMIs to happen.

Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 arch/mn10300/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch/mn10300/Kconfig')

diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 21e2a534d98..dd7b5700358 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -20,6 +20,9 @@ config AM34_2
 	select MN10300_HAS_ATOMIC_OPS_UNIT
 	select MN10300_HAS_CACHE_SNOOP
 
+config ERRATUM_NEED_TO_RELOAD_MMUCTR
+	def_bool y if AM33_3 || AM34_2
+
 config MMU
 	def_bool y
 
-- 
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