On 01/20/2017 07:11 PM, Frank Kunz wrote: > Am 20.01.2017 um 18:18 schrieb Marek Vasut: >> On 01/20/2017 05:45 PM, Frank Kunz wrote: >> >> Hi, >> >>> This patch adds common distribution boot environment variables for >>> DE0-nanos-SoC board. It disables the watchdog enalbe in uboot since >>> this is done by the OS. >> >> So if the board hangs in U-Boot, with this patch you're doomed. > > Yes, this is a risk. An option could be to extend the watchdog timeout. > I had the problem that the watchdog triggered during initrd rewrite on > first boot of openSUSE. That remains the system in an un-bootable state. > Currently the timeout is 30 seconds and I think it needs to be extended > to minutes.
Can you describe the problem and how to trigger it ? No, 30 seconds is definitely long enough already. If U-Boot triggers WDT during some operation, it means it got stuck or there's a bug, nothing else. >>> The MMC boot mode is switched to raw mode, which >>> gets rid of the 0xa2 special partition. The SOC ROM loader scans for >>> the SPL in the special partition (partition mode) and from MMC card >>> sector 0 (raw mode), each for four valid SPLs. >> >> So all existing systems will be rendered unbootable if I apply this patch? > > In principle yes. The problem is the bootcmd variable, which is defined > by the current code in a way that will not allow to boot a script. So > far I had no better idea as change it. If you have an example or > proposal how to handle that I will add this. How is bootcmd related to changing partition layout ? >>> When a partition table is >>> used with raw mode the first SPL must not be written to the MMC and the ROM >>> loader uses the second SPL. >> >> btw if this patch does multiple things, it should be multiple patches, >> but I'm not too keen on taking it unless the above stuff is sorted out. >> btw please CC Dinh on Altera patches. > > Ok, I will split to separate patches and re-send to the list. Thanks > Thanks for your feedback. > > Br, > Frank > -- Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
