Hi, On 26 August 2014 09:17, Valentin Longchamp <valentin.longch...@keymile.com> wrote: > > Hello, > > Here is the outcome of my debug session today: > > On 08/25/2014 05:42 PM, Valentin Longchamp wrote: > > Hello, > > > > I am currently porting all the Keymile boards to CONFIG_SYS_GENERIC_BOARD. > > On u-boot 2014.10-rc1 I have all of them working quite well (at least > > booting > > and showing no obvious problem), except for our boards using a MPC8360 > > from Freescale (kmcoge5ne and kmeter1, both using km8360.h as config) that > > do > > not boot at all. > > > > I have found out that u-boot crashes as soon as a getenv function call > > happens > > before relocation. When I disable them, u-boot seems to work fine. I am > > currently trying to debug further, but it's not clear yet exactly what > > causes > > the crash. > > So the problem is that for an unknown reason, the gd->flags are not correct > and > getenv actually calls hsearch_h to look for the desired env variable. This > fails > before relocation (due to the small stack ?). > > If I replace the board_f getenv_ulong calls in board_f.c with my > getenv_f_ulong > function that explicitely calls getenv_f the board boots up nicely. > > Now the question is, why are my gd->flags not correct/corrupted ? Has someone > already seen something similar ? I unfortunateley cannot access gd easily with > the BDI, since it is located in the INIT_RAM which is a data cache, for which > I > have no LAW configured (could work on that).
I just saw this. There is condition code at the start of board_init_f() in board_f.c that might exclude your board. So your global data might not be zeroed. > > > > > > We also have quite a few MPC8321 boards (for instance tuxx1.h or suvd3.h) > > and > > there the problem is not present, while the environment is also in the NOR > > flash as on km8360 and their core also a e300 (so their initialization is > > VERY > > similar). > > I have checked and there it's clearly getenv_f that gets called by getenv > before > relocation. That's why no problem is seen there. > > Valentin > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
