Hi, Am 18.01.2018 um 18:20 schrieb Stefan Roese: > On 17.01.2018 16:52, Andreas Färber wrote: >> Am 09.06.2017 um 19:28 schrieb Marek Behún: >>> This is the fourth version of patches for adding support for the >>> Turris Omnia board, a router developed by the CZ.NIC. >> >> I'm still facing trouble testing turris_omnia on latest v2018.01. >> >> First, that made me notice there's no README for how to test and deploy. >> I'm aware of temporary: >> sendbeacon /dev/ttyUSBx > > I have to admit, that don't know anything about this "sendbeacon" > tool. > >> ./tools/kwboot -t -B 115200 /dev/ttyUSBx -b u-boot-spl.kwb -p > > This is what I have used, when I tested / debugged images for > Armada XP / 38x. Please note that the init sequence is somewhat > "fragile" - so I added the -q and -s parameters, to optionally > finetune the startup timings: > > # kwboot > ... > -q <req-delay>: use specific request-delay > -s <resp-timeo>: use specific response-timeout > > You might what to play a bit with these parameters as well.
I saw them but had no idea what to pass as values. ;) I did try -a, but it worked with and without. > BTW: I don't have access to the Omnia router, so I can't > test anything on this specific platform. > > BTW2: Kosta from Marvell just recently added a new tool / script, > to help debug / boot Marvell MVEBU boards: > > tools/mrvl_uart.sh > > He told me that its better to use than the "old" kwboot tool. > I never found the time to use it up until now, so I have no > personal experience. But I'm pretty sure that Kosta did a > great job here. So please give it a try. I did not get it to work ... or was not patient enough. >> # or without -p when s/BOOT_FROM spi/BOOT_FROM uart/ >> and permanent: >> tftpboot 0x1000000 u-boot-spl.kwb >> sf probe >> sf update 0x1000000 0 $filesize >> >> I used to have the original factory CZ.NIC U-Boot in SPI and booted test >> versions only via sendbeacon+kwboot. >> >> With mainline that appears to be broken - the CONFIG_ARMADA_38X code in >> arch/arm/mach-mvebu/spl.c seems to run into !boot_device and instead of >> UART tries to boot from SPI - nothing happens then and kwboot complains. >> I can force it to continue booting from UART by commenting out the if. >> So Stefan, it looks like your auto-detection is not working here and the >> Kconfig option to force it was dropped prematurely. > > Hmmm. Then some patch must have broken this UART boot-ability. Could > you by any chance git-bisect, to check which patch broke this > functionality? Perhaps some of the newer patches from Sean Nyekjaer? I've so far found that v2017.11 had UART boot working okay. >> When forcing UART, as soon as the progress surpasses 99%, it reboots >> into SPI SPL without any error message. >> Using the old U-Boot fork I've tried flashing u-boot-spl.kwb - similarly >> it gets stuck in the SPL trying to boot on from SPI. After a while it >> reboots, and so on in a loop. >> >> So it seems that non-SPL U-Boot 2018.01 is broken, on my 2 GB model. > > Hmmm. I can only I have reconfirmed (with our GCC 7.2.1) that no version works for me: v2017.07 did not have turris_omnia defconfig yet b6ee860b87d8accedfb7a1fd5414f7c483603234 bad (adds turris_omnia) v2017.09 bad v2017.11 bad v2018.01 bad master bad (c4cb6e64bf068eaa1f7c96cb37da7ae6d40bbbff / arc merge) So I have nothing to bisect and wonder how Marek tested this... >> I also ran into a couple DDR3 training failures when booting via UART. >> No such training problems observed booting from SPI. > > Using the same U-Boot version, meaning same DDR init code? Yes. Only difference being BOOT_FROM and the spl.c modification. > Thats > strange. I have not really worked with Armada 38x for quite some > time, but I don't remember any such problems that you describe > here. I might need to dig up an Armada 38x board and give it a > try myself... Regards, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
