[U-Boot] NAND Flash with Internal Hardware ECC
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?
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.
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@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Hi Josh,
That worked! Many thanks.
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?
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 josh.wu@atmel.com Date: Fri, 27 Mar 2015 10:52:29 +0800 To: Rajiv Dave rajivd@disignconsultants.com, u-boot@lists.denx.de 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@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
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 josh.wu@atmel.com Date: Fri, 27 Mar 2015 10:52:29 +0800 To: Rajiv Dave rajivd@disignconsultants.com, u-boot@lists.denx.de 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@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
participants (2)
-
Josh Wu -
Rajiv Dave