> -----Original Message----- > From: Sascha Hauer [mailto:s.hauer@xxxxxxxxxxxxxx] > Sent: 05 December 2013 15:25 > To: Jean-Christophe PLAGNIOL-VILLARD > Cc: John Parker; barebox@xxxxxxxxxxxxxxxxxxx > Subject: Re: FW: Barebox on Karo TX25 > > On Tue, Dec 03, 2013 at 08:01:26PM +0100, Jean-Christophe PLAGNIOL- > VILLARD wrote: > > On 10:26 Tue 03 Dec , Sascha Hauer wrote: > > > BTW Please don't top-post. > > > > > > On Mon, Dec 02, 2013 at 09:13:31AM +0000, John Parker wrote: > > > > Hi again > > > > > > > > So now my problem is that I really could do with the LED and UBIFS stuff > that happened since February. > > > > > > > > Should I try to fix mx25 in the latest code, or undo the problematic > commit? > > > > > > Well preferably you should fix the latest code and send a patch to > > > make it work again ;) However, that could become tricky. For doing > > > so the patch to enable the debug UART early may become useful. With > > > this you can use putc_ll and puthex_ll in early code. > > > > > > I did some investigation. What happens here is really strange. First > > > I added a missing instruction cache invalidation. That alone doesn't > > > fix the problem. Inserting a nop fixes booting for me, see the > > > attached patch. If I move the nop up in the code it still works. If > > > I move it down, then the board does not work. I have no idea what's > > > happening here :( > > > > could be that the sdram controler need times to stabelized and that > > you miss a delay for this > > I thought about this aswell, but I don't believe that a single nop could make > such a reproducable difference. I tried all this with JTAG debugging aswell > which should make all timing issues vanish. > > Sascha > Hi again Sorry for the delay coming back on this. I was able to get the 2013.02 release working well on the tx25 and have made a huge amount of progress. I have even automated the replacement of Redboot with Barebox! In the New Year I will try your patch on the latest code and let you know how I get on. Once again , many thanks all. Seasons Greetings and Happy New Year to you all. Kind regards John _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
