> The va to pa translation should not be done if MMU is not enabled, or rather
> was not enabled when the target was halted, so that relevant address ranges
> are actually mapped through the MMU.

How's this?

-- 
Øyvind Harboe
http://www.zylin.com/zy1000.html
ARM7 ARM9 ARM11 XScale Cortex
JTAG debugger and flash programmer
From a9f9c4ed4462bb1f9bfd954707c1f25d0ed018eb Mon Sep 17 00:00:00 2001
From: =?utf-8?q?=C3=98yvind=20Harboe?= <[email protected]>
Date: Sun, 25 Oct 2009 18:24:18 +0100
Subject: [PATCH] check if mmu is enabled before using mmu code path

---
 src/target/arm926ejs.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/target/arm926ejs.c b/src/target/arm926ejs.c
index 9061174..ef9a494 100644
--- a/src/target/arm926ejs.c
+++ b/src/target/arm926ejs.c
@@ -713,7 +713,7 @@ int arm926ejs_write_memory(struct target_s *target, uint32_t address, uint32_t s
 	/* FIX!!!! this should be cleaned up and made much more general. The
 	 * plan is to write up and test on arm926ejs specifically and
 	 * then generalize and clean up afterwards. */
-	if ((count == 1) && ((size==2) || (size==4)))
+	if (arm926ejs->armv4_5_mmu.mmu_enabled && (count == 1) && ((size==2) || (size==4)))
 	{
 		/* special case the handling of single word writes to bypass MMU
 		 * to allow implementation of breakpoints in memory marked read only
-- 
1.6.0.4

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