From: Bernd Schmidt <bernds_cb1@t-online.de>
Date: Mon, 2 Mar 2009 10:37:48 +0000 (+0800)
Subject: Blackfin arch: fix bug - jump_to_zero test case failed on noMPU kernel
X-Git-Tag: upstream/snapshot3+hdmi~20060^2~23
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e84dcaa18b2785d8ab20a7cb25612d89feb89fa7;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

Blackfin arch: fix bug - jump_to_zero test case failed on noMPU kernel

The nompu code is now derived from the mpu code, and had the same problem -
no null pointer detection on ICPLBs.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
---

diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 0e28f75..d6c0677 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -53,9 +53,13 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
 
 	i_d = i_i = 0;
 
+#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
 	/* Set up the zero page.  */
 	d_tbl[i_d].addr = 0;
 	d_tbl[i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
+	i_tbl[i_i].addr = 0;
+	i_tbl[i_i++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
+#endif
 
 	/* Cover kernel memory with 4M pages.  */
 	addr = 0;