From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josh Wu Date: Mon, 30 Mar 2015 09:42:04 +0800 Subject: [U-Boot] NAND Flash with Internal Hardware ECC In-Reply-To: References: Message-ID: <5518A9EC.5000606@atmel.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi, Dave On 3/27/2015 8:41 PM, Rajiv Dave wrote: > Hi Josh, > > That worked! Many thanks. You are welcome ;-) > > The next issue is that the Kernel now needs to be re-built, we are using > 2.6.xx, do you have any ideas on what to change in the Kernel to make it > work with the HW ECC NAND? If you are using the github/linux-2.6.39-at91 branch, you need change the arch/arm/mach-at91/board-sam9263ek.c to set .ecc_mode as NAND_ECC_NONE. Best Regards, Josh Wu > > > Regards > > Rajiv Dave > > Disign Consultants > t: +44 (0) 207 544 8486 > w: www.disignconsultants.com > > This message and any attachment are confidential and may be privileged or > otherwise protected from disclosure. If you are not the intended recipient, > please telephone or email the sender and delete this message and any > attachment from your system. If you are not the intended recipient you must > not copy this message or attachment or disclose the contents to any other > person. > > > >> From: Josh Wu >> Date: Fri, 27 Mar 2015 10:52:29 +0800 >> To: Rajiv Dave , >> Subject: Re: [U-Boot] NAND Flash with Internal Hardware ECC >> >> Hello, Dave >> >> On 3/26/2015 4:45 PM, Rajiv Dave wrote: >>> Hi, >>> >>> We are using an Atmel AT91SAM9263 processor which supports 1 Bit ECC flash >>> devices that have Block 0 Valid with no ECC. These devices are now obsolete. >>> >>> We have fitted a board with a MT29F2G08ABAEWP-E-E, which has an internal >>> Hardware ECC engine. Would you know how provide support for this device >>> within U-Boot? >> As your flash have internal ecc, you should disable the AT91SAM9263 ecc. >> >> it means you need to set the nand->ecc.mode to NAME_ECC_NONE >> in the U-Boot if you already enabled internal Hardware ECC. >> >> >> Best Regards, >> Josh Wu >>> The following output is generated by a board fitted with the NAND Flash with >>> Internal Hardware ECC >>> >>> RomBOOT >>> >>> U-Boot 1.3.4 (Sep 19 2013 - 15:10:38) >>> >>> DRAM: 64 MB >>> NAND: 256 MiB >>> No Valid Environment Area Found >>> In: serial >>> Out: serial >>> Err: serial >>> Net: macb0 >>> macb0: Starting autonegotiation... >>> macb0: Autonegotiation timed out (status=0x7849) >>> macb0: link down (status: 0x7849) >>> Hit any key to stop autoboot: 3  2  1  0 >>> >>> NAND read: device 0 offset 0x200000, size 0x17e16c >>> 1565036 bytes read: ERROR >>> ## Booting kernel from Legacy Image at 22200000 ... >>> Image Name: Linux-2.6.30 >>> Image Type: ARM Linux Kernel Image (uncompressed) >>> Data Size: 1564972 Bytes = 1.5 MB >>> Load Address: 20008000 >>> Entry Point: 20008000 >>> Verifying Checksum ... Bad Data CRC >>> ERROR: can't get kernel image! >>> U-Boot> >>> >>> Regards >>> >>> Rajiv Dave >>> >>> Disign Consultants >>> t: +44 (0) 207 544 8486 >>> w: www.disignconsultants.com >>> >>> This message and any attachment are confidential and may be privileged or >>> otherwise protected from disclosure. If you are not the intended recipient, >>> please telephone or email the sender and delete this message and any >>> attachment from your system. If you are not the intended recipient you must >>> not copy this message or attachment or disclose the contents to any other >>> person. >>> >>> >>> _______________________________________________ >>> U-Boot mailing list >>> U-Boot at lists.denx.de >>> http://lists.denx.de/mailman/listinfo/u-boot >