From mboxrd@z Thu Jan 1 00:00:00 1970 From: York Sun Date: Mon, 20 Apr 2015 14:00:56 -0700 Subject: [U-Boot] [PATCH 1/2] powerpc/mpc85xx: Don't relocate exception vectors In-Reply-To: <1428456001-1938-1-git-send-email-scottwood@freescale.com> References: <1428456001-1938-1-git-send-email-scottwood@freescale.com> Message-ID: <55356908.7040907@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 04/07/2015 06:20 PM, Scott Wood wrote: > Booke does not require exception vectors to be located at address zero. > U-Boot was doing so anyway, simply because that's how it had been done > on other PPC. The downside of this is that once the OS is loaded to > address zero, the exception vectors have been overwritten -- which > makes it difficult to diagnose a crash that happens after that point. > > The IVOR setup and trap entry code is simplified somewhat as a result. > > Also, there is no longer a need to align individual exceptions on 0x100 > byte boundaries. > > Signed-off-by: Scott Wood > --- Applied to mpc85xx master, awaiting upstream. York