Hi Sam, On 12/09/19 22:03, Sam Protsenko wrote: > Hi Stefan, > > On Thu, Sep 12, 2019 at 5:38 PM Stefan Roese <[email protected]> wrote: >> >> Hi Sam, >> >> On 12.09.19 15:45, Sam Protsenko wrote: >>> Hi Suniel, >>> >>> After transition to DM WDT, watchdog timer on BeagleBone Black resets >>> the board after 1 minute or so. I'm using this defconfig: [1]. After >>> disabling CONFIG_WDT and CONFIG_WATCHDOG options the board doesn't >>> reset. I guess it might be happening on other boards using >>> CONFIG_WDT_OMAP3 as well. The issue can be reproduced by stopping in >>> U-Boot shell (=>) and waiting for 1 minute. >>> >>> Do you know by chance why it might be happening, or maybe some fix >>> already exists? >>> >>> Thanks! >>> >>> [1] https://pastebin.ubuntu.com/p/Zz5bY6cYXS/ >> >> So you have enabled the watchdog and should see something like this >> upon bootup: >> >> WDT: Started without servicing (60s timeout) >> >> Is this correct? Then you need to enable the U-Boot internal WDT >> servicing by enabling CONFIG_WATCHDOG as well, as this will >> result in the internal U-Boot servicing of the watchdog. Then >> you should see this upon bootup and no reset will appear in >> U-Boot: >> >> WDT: Started with servicing (60s timeout) >> > > I'm seeing this ("with servicing") line, and CONFIG_WATCHDOG is > already enabled in am335x_evm_defconfig. So I think it's an issue, > which *probably* appeared when watchdog drivers were converted to > Driver Model (this defconfig is using CONFIG_WDT + CONFIG_WDT_OMAP3 > options).
No, I didn't see any target reset issues because of DM WDT. It was well tested when it was converted to DM(both on hardware and travis). Yes the config uses both CONFIG_WDT + CONFIG_WDT_OMAP3. Any clues what can be wrong? compiled and ran latest u-boot (am335x_evm_defconfig) as it is on the target(BBB). Checked three boot modes MMC, SD and serial, didn't see any issues. https://paste.ubuntu.com/p/tjcPhv4FMQ/ (sd card boot) https://pastebin.ubuntu.com/p/X4tkp4ngMK/ (serial boot) I am suspecting something else might be causing the issue. Hope this helps Thanks Suniel > >> Does this help? >> >> Thanks, >> Stefan _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
