U-Boot on SPI flash - discussion
#3
Yes, it's a common technique.

My old Cisco router did something similar. It had a tiny initial boot ROM, that activated the console and performed some initialization. Then, unless told otherwise on the console, started the primary router image from a much large flash device. The large flash device could hold 2 or more router images, unless you needed all the features.

If things went badly with the router image, you could even reload the router image via initial boot ROM. Clumsy, but doable. Meaning the router was not bricked.
--
Arwen Evenstar
Princess of Rivendale


Messages In This Thread
U-Boot on SPI flash - discussion - by Arwen - 11-29-2019, 04:18 PM
RE: U-Boot on SPI flash - discussion - by Arwen - 11-29-2019, 07:45 PM
RE: U-Boot on SPI flash - discussion - by zaius - 11-30-2019, 04:07 PM
RE: U-Boot on SPI flash - discussion - by Arwen - 11-30-2019, 04:25 PM
RE: U-Boot on SPI flash - discussion - by zaius - 12-01-2019, 11:21 AM
RE: U-Boot on SPI flash - discussion - by Arwen - 12-01-2019, 11:51 AM
RE: U-Boot on SPI flash - discussion - by zaius - 12-02-2019, 06:26 AM
RE: U-Boot on SPI flash - discussion - by Arwen - 12-02-2019, 10:34 AM
RE: U-Boot on SPI flash - discussion - by xalius - 12-02-2019, 11:09 AM
RE: U-Boot on SPI flash - discussion - by zaius - 12-02-2019, 02:01 PM
RE: U-Boot on SPI flash - discussion - by xalius - 12-02-2019, 02:17 PM
RE: U-Boot on SPI flash - discussion - by pcm720 - 12-02-2019, 10:12 PM
RE: U-Boot on SPI flash - discussion - by Wizzard - 12-03-2019, 12:48 AM
RE: U-Boot on SPI flash - discussion - by Arwen - 12-03-2019, 06:11 AM
RE: U-Boot on SPI flash - discussion - by pcm720 - 12-03-2019, 06:18 AM
RE: U-Boot on SPI flash - discussion - by Wizzard - 12-03-2019, 06:25 AM
RE: U-Boot on SPI flash - discussion - by hmuller - 01-06-2020, 08:53 PM
RE: U-Boot on SPI flash - discussion - by hmuller - 09-16-2020, 08:20 AM

Possibly Related Threads…
Thread Author Replies Views Last Post
  3 days in, slow/stuck or no boot. lgmpbp2 33 10,148 05-27-2025, 03:27 PM
Last Post: lgmpbp2
  upgrading u-boot--what version? where to get it? bsammon 14 6,198 04-03-2025, 07:47 AM
Last Post: Tazdevl
Tongue Yet another Pinebook Pro won't boot thread pinemouth 5 4,649 12-27-2024, 11:38 AM
Last Post: akash3995
  broken tow-boot hashkeeper 1 680 12-25-2024, 10:12 PM
Last Post: jessipinkman
  Cant boot into an OS trashtendenz 3 1,419 10-23-2024, 03:49 AM
Last Post: chaylengordon
  Unable to boot? YossiS 4 1,249 09-04-2024, 10:35 AM
Last Post: wdt
  uboot wont boot to SD card after upgrade jbradley419 7 3,817 01-19-2024, 02:29 PM
Last Post: wdt
  Video Flashing/adjusting on boot and reboot jbradley419 0 970 01-16-2024, 09:17 AM
Last Post: jbradley419
  Brand new Pinebook Pro doesn't boot after Manjaro update johnboiles 8 5,289 12-15-2023, 02:11 PM
Last Post: wdt
  PBP won't boot after trying to reinstall Manjaro ARM soupgirl 3 2,278 12-13-2023, 08:17 PM
Last Post: trillobite

Forum Jump:


Users browsing this thread: 1 Guest(s)