From b67d8816fd62f0a379caa16846381b5a4e4de398 Mon Sep 17 00:00:00 2001
From: Christian Riesch <christian.riesch@omicron.at>
Date: Thu, 2 Feb 2012 00:44:39 +0000
Subject: arm, arm926ejs: Add option CONFIG_SYS_EXCEPTION_VECTORS_HIGH

The V bit of the c1 register of CP15 should not be cleared on DA850
SoCs since they have no valid memory at 0x00000000. This patch
introduces a configuration option CONFIG_SYS_EXCEPTION_VECTORS_HIGH
that allows setting the correct value for the V bit.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Reported-by: Sughosh Ganu <urwithsughosh@gmail.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Tom Rini <trini@ti.com>
Cc: Sughosh Ganu <urwithsughosh@gmail.com>
Cc: Heiko Schocher <hs@denx.de>
---
 README | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'README')

diff --git a/README b/README
index 43430576b2..b6c9d0b0e9 100644
--- a/README
+++ b/README
@@ -420,6 +420,12 @@ The following options need to be configured:
 		XWAY SoCs for booting from NOR flash. The U-Boot image needs to
 		be swapped if a flash programmer is used.
 
+- ARM options:
+		CONFIG_SYS_EXCEPTION_VECTORS_HIGH
+
+		Select high exception vectors of the ARM core, e.g., do not
+		clear the V bit of the c1 register of CP15.
+
 - Linux Kernel Interface:
 		CONFIG_CLOCKS_IN_MHZ
 
-- 
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