> -----Original Message----- > From: Sascha Hauer [mailto:s.hauer@xxxxxxxxxxxxxx] > Sent: dinsdag 18 juni 2013 21:25 > To: Vanhauwaert Wouter > Cc: barebox@xxxxxxxxxxxxxxxxxxx > Subject: Re: Barebox fails to boot 1/40 boots... > > On Tue, Jun 18, 2013 at 02:59:57PM +0200, Vanhauwaert Wouter wrote: > > Hello all, > > > > I have this issue with our custom design (IMX53, NAND, DDR3) > > > > Everything goes well most of the time, but now and then the system does not > boot and halts during initialization... > > To be more specific, the function on which the system blocks is > > 'setup_c()' in arch/arm/cpu/start-pbl.c > > > > What can I do more to debug this? This function is completely in assembler... > > What makes you sure barebox stops there? Do you have DEBUG_LL enabled or > do you use a JTAG debugger? > Because these are real on/off tests (with which I mean with a relais which switches on/off every 10 seconds or so, a cold restart) I did not have the ability to test it with a debugger. What I did was changing the LDO voltage from 1.2V to 1.3V and measure this with a scoop. When I put the adjustment right before this setup_c(), it goes well all the time (even when the board is blocked), when I put it after this setup_c(), it doesn't get through when the board is blocked. So my assumption is it blocks in this function. > Does this happen in first stage boot only or also when you chainload barebox > from an already running barebox? This is in a first stage boot... > > You could try calling imx53_init_lowlevel_early from > barebox_arm_reset_vector(). This *could* make a difference. > > Since you are using v2013.05-stable you should have the following patches, but > maybe it's worth rechecking. > > 76820df ARM: invalidate data caches during early init > f9d7582 ARM v7: added v7_mmu_cache_invalidate() > ee5f859 ARM v7: v7_mmu_cache_flush(): do not restore r0-r3 (minor > optimization) eb7d85c arm: properly init alignment trap bit > 7904d90 ARM v7: fix mmu-off operation > 9af1150 ARM: fix the memset fix > I'll check Grtz, Wouter _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
