2019-07 introduced a new function initr_watchdog include/wdt.h with commit 06985289d452ad2423145cfed8cece61a7f8cec6 which seems to be the problem here

the commit shows some boards where the reset is removed

board/mediatek/mt7623/mt7623_rfb.c does not contain such watchdog_reset function so it was not called before

in common/board_r.c this function gets called for all boards if CONFIG_WDT is defined

in my config WDT is set to y but watchdog is set to n

i found this fix:

https://patchwork.ozlabs.org/patch/1113120/

but this does not solve the probleme described here...only there is a delay between resets

regards Frank

Gesendet: Sonntag, 23. Juni 2019 um 13:23 Uhr Von: "Frank Wunderlich" frank-w@public-files.de An: "Frank Wunderlich" frank-w@public-files.de Cc: u-boot@lists.denx.de Betreff: Aw: [U-Boot] [BUG] bootloop with 2019-07 on Bananapi-r2

Hi again,

whats the correct way to enable debug?

i tried this (add #define DEBUG in common.h): https://stackoverflow.com/questions/31185603/enabling-debug-mode-for-denx-u-...

=> uboot does not load (version-line does get printed)

then i've found this:

https://lists.denx.de/pipermail/u-boot/2003-August/002196.html

but DBGFLAGS does not exist in config.mk, i found also no dbg,debug or similar in Makefile and config.mk

i found some debug-options in menuconfig, but don't know which is the right one for this...

maybe DEBUG_LL [=n] ?

regards Frank

...

Gesendet: Sonntag, 23. Juni 2019 um 12:46 Uhr Von: "Frank Wunderlich" frank-w@public-files.de An: u-boot@lists.denx.de Betreff: [U-Boot] bootloop with 2019-07 on Bananapi-r2

Hi,

i have an issue with 2019-07 (rc1 and rc4) on Bananapi-R2 (mt7623).

from the bootlog (seems like WDT triggers a reset):

U-Boot 2019.07-rc1-bpi-r2-00002-gb692d6e6b4 (Jun 23 2019 - 11:39:57 +0200)

CPU: MediaTek MT7623 E3 DRAM: 2 GiB WDT: Started with servicing (60s timeout)

[USBD] USB PRB0 LineState: 0

the last line "[USBD]" is first line after reset (= first line after power on).

No issue on 2019-04 final, here i see no WDT-line:

U-Boot 2019.04-bpi-r2-00003-g0870aec1fb (Jun 23 2019 - 12:36:20 +0200)

CPU: MediaTek MT7623 E3 DRAM: 2 GiB MMC: mmc@11230000: 0, mmc@11240000: 1 Loading Environment from MMC... Boot From SD(id:1)

*** Warning - bad CRC, using default environment

In: serial Out: serial Err: serial Net:

any idea how to get the cause? it is between 2019-04 final and 2019-07-rc1

https://github.com/frank-w/u-boot/tree/2019-04-bpi-r2 <<< affected https://github.com/frank-w/u-boot/tree/2019-07-bpi-r2 <<< not affected (=rc1, but tested also rc4)

regards Frank

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