So uboot can recover if it's bad using watchdog? How does this work if the binary is clobbered?
-----Original Message----- From: otavio.salva...@gmail.com [mailto:otavio.salva...@gmail.com] On Behalf Of Otavio Salvador Sent: Tuesday, February 19, 2013 1:34 PM To: Chaves, Kevin Cc: Eric Nelson; u-boot@lists.denx.de; Dirk Behme Subject: Re: [U-Boot] imx6, spl and falcon boot On Tue, Feb 19, 2013 at 3:22 PM, Chaves, Kevin <kevin.cha...@thermofisher.com> wrote: > It's not so much a faster boot I'm looking for but just relying less on uboot > to initialize the device. The initial idea by my superiors is make an > infallible way to update uboot, since they think they'll screw it up and have > to support a field update. So we wanted to make two images with > uboot/kernel/rfs, one for recovery and have a way to switch the settings on > startup. That way we have a small first stage boot that won't ever need to be > updated so long as it can boot from two different partitions. > > I realized it probably wasn't that useful to keep uboot around since the > spl+falcon will increase the boot time. Figured I could kill two birds with > one stone here. Faster boot, and no need to update the bootloader in the > field, or at least minimize how much could change in its start up procedure > so there is less to "fix" in the future. If you just want the fallback and upgrade mode, you can get it with current u-boot + whatdog + bootcount and fw_env in target (or kexec). Regards, -- Otavio Salvador O.S. Systems E-mail: ota...@ossystems.com.br http://www.ossystems.com.br Mobile: +55 53 9981-7854 http://projetos.ossystems.com.br _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
