[U-Boot] OT Flashing high volume of devices
Hi folks this is probably out off topic, we are happily using uboot in our devices but I am wondering about the procedures to flash/deploy uboot (or any bootloader) in a high scale production environment.
Are you guys aware of any documentation or procedure to do that?
Sorry about the off topic, but I am not finding useful info at google.
Thanks
Dear Hamilton Vera,
In message AANLkTim-w-ijiNpPMsmUM++9MwWsxbOntOdPb5HH6D0Z@mail.gmail.com you wrote:
Hi folks this is probably out off topic, we are happily using uboot in our devices but I am wondering about the procedures to flash/deploy uboot (or any bootloader) in a high scale production environment.
What sort of boot device are you using? NOR flash? NAND flash?
For high volumes, you can get pre-programmed flash chips, so you have a running system when the boards come from assembly.
Best regards,
Wolfgang Denk
On 11/18/2010 03:39 PM, Wolfgang Denk wrote:
Dear Hamilton Vera,
In messageAANLkTim-w-ijiNpPMsmUM++9MwWsxbOntOdPb5HH6D0Z@mail.gmail.com you wrote:
Hi folks this is probably out off topic, we are happily using uboot in our devices but I am wondering about the procedures to flash/deploy uboot (or any bootloader) in a high scale production environment.
What sort of boot device are you using? NOR flash? NAND flash?
For high volumes, you can get pre-programmed flash chips, so you have a running system when the boards come from assembly.
Indeed, pre-programing flash used in the board assembly is the way to go. Most manufacturers make the initial image a self-test program that initially exercise all I/O (the board is initially powered up attached to a test/burn-in fixture), and if the test succeeds, then re-burns the flash with the production image(u-boot/Linux/rootfs or otherwise) that is part of the test-image. If the test fails, then the board is rejected and reworked to diagnose/fix found issues (cold-solder, lifted pins, etc).
Speed of testing/initial burn-in can be increased by running more than one fixture in parallel.
Dear Wolfgang, thanks for your reply.
Actually we are using NAND, since NAND usually comes with some bad blocks from the provider I am worried about the procedure and best practices.
Thank you a lot.
Hamilton Vera
On Thu, Nov 18, 2010 at 6:39 PM, Wolfgang Denk wd@denx.de wrote:
Dear Hamilton Vera,
In message AANLkTim-w-ijiNpPMsmUM++9MwWsxbOntOdPb5HH6D0Z@mail.gmail.com you wrote:
Hi folks this is probably out off topic, we are happily using uboot in our devices but I am wondering about the procedures to flash/deploy uboot (or any bootloader) in a high scale production environment.
What sort of boot device are you using? NOR flash? NAND flash?
For high volumes, you can get pre-programmed flash chips, so you have a running system when the boards come from assembly.
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de Computers are not intelligent. They only think they are.
On 2010-11-18, Hamilton Vera hamilton.listas@gmail.com wrote:
Hi folks this is probably out off topic, we are happily using uboot in our devices but I am wondering about the procedures to flash/deploy uboot (or any bootloader) in a high scale production environment.
Are you guys aware of any documentation or procedure to do that?
Send the hex file to the flash distributor and have them do it.
Thank you all, I appreciate very much your tips.
We will study this tactic with our staff in China.
Thanks a lot.
Hamilton Vera
On Thu, Nov 18, 2010 at 7:52 PM, Grant Edwards grant.b.edwards@gmail.com wrote:
On 2010-11-18, Hamilton Vera hamilton.listas@gmail.com wrote:
Hi folks this is probably out off topic, we are happily using uboot in our devices but I am wondering about the procedures to flash/deploy uboot (or any bootloader) in a high scale production environment.
Are you guys aware of any documentation or procedure to do that?
Send the hex file to the flash distributor and have them do it.
-- Grant Edwards grant.b.edwards Yow! I'm meditating on at the FORMALDEHYDE and the gmail.com ASBESTOS leaking into my PERSONAL SPACE!!
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participants (4)
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Grant Edwards -
Hamilton Vera -
Peter Barada -
Wolfgang Denk