From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nishanth Menon <nm@ti.com>
Date: Fri, 23 Aug 2013 09:21:39 -0500
Subject: [U-Boot] beaglxm/bootz: kernel boot fail due to align err: cache
 handling issues?
Message-ID: <20130823142139.GA29747@kahuna>
List-Id: <u-boot.lists.denx.de>
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To: u-boot@lists.denx.de

Hi,
Noticed an interesting behavior where adding a dcache flush kernel boot
fail due to unaligned-accesses seems to go away.
Full details: http://pastebin.com/kVBRWsbE
Without dcache flush being added to my uenvcmd:

Kernel image @ 0x80200000 [ 0x000000 - 0x3e2690 ]
data abort

MAYBE you should read doc/README.arm-unaligned-accesses

pc : [<9ff6f6b4>]	   lr : [<9ff6ef6c>]
sp : 9fefaaf0  ip : 9fefe8ec	 fp : 00000000
r10: 9ffa6544  r9 : 9ffa5e5c	 r8 : 9fefaf30
r7 : 0f800000  r6 : 9ffa6544	 r5 : 9ffa65b0  r4 : 9ffa65b4
r3 : 00000049  r2 : 00000010	 r1 : 00000000  r0 : 0f800000
Flags: nZCv  IRQs off  FIQs off  Mode SVC_32
Resetting CPU ...

With dcache flush being added to my uenvcmd: complete boot


I think something of the form was highlighted here:
http://marc.info/?l=u-boot&m=137276534624656&w=2

Not sure if there was any conclusion to the effect.

A quick tag bisect attempt was'nt too useful either.

-- 
Regards,
Nishanth Menon