From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Stile Date: Fri, 21 Dec 2012 13:27:31 -0800 Subject: [U-Boot] where is the crc stored? In-Reply-To: <20121221195421.3D449200FB7@gemini.denx.de> References: <1356114777.28896.92.camel@genx> <20121221195421.3D449200FB7@gemini.denx.de> Message-ID: <1356125251.28896.119.camel@genx> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Fri, 2012-12-21 at 20:54 +0100, Wolfgang Denk wrote: > Dear John Stile, > > In message <1356114777.28896.92.camel@genx> you wrote: > > What area of memory is the crc stored for a partition? > > Which sort of partitions are you talking here? Maybe partition is the wrong word for a memory address region. I am a total new-bee, but I have read there is a crc check in u-boot. The crc check can result in a: Warning: Bad CRC, using default environment The crc is considered during the bootcmd. > > I would like to find some detailed documentation on the crc (how big is > > it, where it is stored, how to invalidate to force the booting from a > > second area). > > In general, erasing the whole region will usually work ;-) > > Best regards, > > Wolfgang Denk > I would like to know where this crc is stored. I would like to know is it 8-bit, 16-bit, and 32-bit, or other.