IRC log of #cubox of Tue 28 Mar 2017. All times are in CEST < Back to index

12:42 topi` jnettlet: which UBOOT would you recommend flashing into our eMMC-destined Gates/Edges?
12:44 rabeeh the same famous one
12:44 topi` I'm looking inside the tar.bz2 given by the HERE-1 link, it seems there is a uboot there
12:44 topi` imx_usb_loader-solidrun-rev-1.1/dq/u-boot_mx6_cubox-i2ultra.imx
12:44 rabeeh one u-boot rules them all; for hb/cbi/emmc/micro sd etc..
12:44 rabeeh oh; those are u-boot with dtd
12:45 topi` I guess the quad one is the correct one, because this device (I think is the imx6 Dual)
12:45 rabeeh those are purely intended to boot usb OTG; if you want the one in runtime just build it from our github
12:45 topi` right
12:45 topi` I don't have a proper setup for building uboot ./
12:45 topi` :/
12:45 rabeeh http://wiki.solid-run.com/doku.php?id=products:imx6:software:development:kernel
12:45 rabeeh U-Boot section
12:46 topi` can I ask is this usb-otg UBOOT package designed to do something? or does it just take me into a uboot prompt?
12:46 topi` if it starts eFusing something, then I cannot undo it :)
12:47 topi` Bus 004 Device 004: ID 15a2:0054 Freescale Semiconductor, Inc. i.MX6Q SystemOnChip in RecoveryMode
12:47 topi` this seems to be a DualQuad som
12:52 topi` jnettlet: any known limitations for compiling uboot? I think I've got gcc-4.8.4
12:53 rabeeh if you downloaded the HERE-1.1 then it only boots u-boot and kernel too
12:53 rabeeh we use it internally (variation of it) to do board testing and efuse setting
12:55 topi` ok, good
12:56 topi` I'll try it out :)
12:56 topi` I just built my own UBOOT
12:56 topi` I should test it on a SD card before committing to the eMMC...
12:56 topi` ah, no, I cannot force it to boot from SD...
12:56 topi` I could test it on an already-fused HB2
12:56 rabeeh yup
12:58 topi` what does the "runme.sh" do?
12:59 topi` it just seems to generate boot.scr
13:05 topi` odd, I can't see the eMMC chip in either mmc0 or mmc1 (going through the dmesg in that buildroot image)
13:06 topi` and /proc/partitions is empty... there should be mmcblk0 if it really sees the eMMC
13:06 topi` another possibility is that this SoM is not really that revision which has the Wilink8 and eMMC?
13:07 topi` wl1271_sdio: probe of mmc1:0001:2 failed with error -61
13:12 topi` there are no /lib/modules here, so I don't know how to verify if the SoM has a Broadcom or Wilink8
13:13 topi` ah, usbcore has registered driver brcmfmac
13:17 topi` if I cannot access the eMMC here; i guess my option is to install a M.2 ssd card and blow the fuses so that it will try to boot from there
13:21 topi` jnettlet: did you build the kernel used by the usb-otg boot script, or was it rabeeh? Does it include the Wilink8 module/driver?
13:28 jnettlet topi`, that is not from me. Does if have -som-15.dtb variations?
13:30 rabeeh jnettlet: it forces load of a dtb to address 0x18000000
13:31 rabeeh the scripts loads the non -som-15.dtb variant; so TI Wilink8 won't be initialized.
13:33 rabeeh i wish webusb could support this
13:37 jnettlet It does, but we need standards first. https://github.com/devanlai/webdfu
13:37 jnettlet which is why I am working on DFU support for everything
13:40 jnettlet rewriting support for every random protocol a SOC vendor thinks up doesn't make much sense.
13:49 topi` I think it tried to initialize wilink8
13:49 topi` because wl1271 returns error -61
13:50 topi` for mmc1 (SDIO)
13:50 topi` if mmc1 were connected to an eMMC, it would say "SDHC" instead of "SDIO"
13:50 topi` but my biggest problem here is that the eMMC is not found at all?
13:51 topi` maybe wrong .dtb?
13:51 topi` the "dq/imx6q-hummingboard2.dtb" is dated Oct 19, 2016
13:52 topi` so it probably lacks the nodes for the v1.5 SoM eMMC?
13:56 topi` btw, our boards seem to have "boot select" jumpers, USB-OTG, SATA, EMMC, MicroSD. But do these jumpers do anything at all?
13:56 topi` can they be used while the device is totally unfused?
14:09 topi` mmc2: Timeout waiting for hardware interrupt
14:09 topi` I think this is the eMMC it tries to probe?
14:10 jnettlet topi, yes. unfortunately eMMC devices have no way to test if they are present.
14:10 topi` but the eMMC is now situated in SOM and not on the baseboard ...
14:10 topi` I just need to access mmcblk0 so I can flash the uboot to it
14:10 jnettlet mmclk0 for eMMC or SDHC?
14:11 topi` eMMC
14:11 topi` this kernel (Linux buildroot 3.14.79+) has been compiled on Jan 15, so it is not very old
14:14 jnettlet topi`, can you take a picture of the som and carrier you are using?
14:16 topi` ok
14:18 topi` Do I need to screw out the heatsink?
14:18 jnettlet that would be easier for identification
14:19 jnettlet really unless you are pushing it hard you don't need the heatsink. I run them all the time without it.
14:30 topi` the quad does become hot if using all cores
14:30 topi` OK it seems to carry a Samsung eMMC
14:32 topi` which mmc should it be mapped to in the kernel? mmc0, 1 or 2?
14:32 topi` if you have the Edge, is the baseboard eMMC going to "override" the SOM eMMC?
14:33 jnettlet topi`, no the rev 1.5 som has resistor packs and it uses the on-board som rather than the carrier som
14:35 topi` ok so it shows up in the same mmcx device as the "traditional" carrier emmc?
14:35 topi` but why won't the kernel see it?
14:36 jnettlet not sure. I will have to download that kernel and test
14:37 topi` it came from the link: http://wiki.solid-run.com/lib/exe/fetch.php?media=products:imx6:microsom:imx_usb_loader-solidrun-rev-1.1.tar.bz2
14:38 topi` should I just try to replace that zImage with a "build_all_modules" kernel? :)
14:47 topi` ok, can you give me any advice on how to proceed with this? we need to demo a working board tomorrow; I'd rather do it with the on-board eMMC than a SD card which we cannot use in deployment anyway
14:53 topi` what do the "boot selection" jumpers do anyway? is it worth to try them out? to boot from e.g. a SDcard
15:02 topi` I tried jumpering to "boot from SDcard" but no go... nothing on uart
15:02 jnettlet topi`, yes the design of those pins was not fixed until the latest board spin we just did.
15:02 topi` OK so that explais
15:03 topi` I will just write "DO NOT USE" over them :)
15:03 jnettlet topi`, okay so here is the deal. It looks like there is a hardware bug between the HB2 Gate and the rev 1.5 som.
15:04 jnettlet however there is a simple fix
15:04 topi` ok
15:08 jnettlet just bridge R48 on the bottom of the board. https://goo.gl/photos/j52u8N55DphDT6BT8
15:09 topi` what does the R48 do?
15:09 topi` I don't have a soldering iron here ;)
15:09 jnettlet topi`, provides power
15:11 jnettlet do you have a piece of wire and glue?
15:11 jnettlet :)
15:11 jnettlet let me look over the schematics one more time quick
15:15 topi` I hope the same hw bug won't exist in the Edges we're about to order soon...
15:18 jnettlet topi`, those have eMMC on the carrier, so they will have that populated
15:22 topi` I tried to insert a SDcard while the uploaded kernel was running, but it fails to detect any card
15:22 topi` nothing on dmesg
15:29 topi` going to set the eFuses to boot from SDcard on this individual for testing... do we have to set up and fuse the MAC address at this time as well?
15:29 topi` or will the fec driver use a random MAC if unfused?
15:32 topi` oops, I fused 0x2850 instad of 0x2840 ... what boot device will it use then?
15:33 jnettle 15:33 * jnettlet checking
15:38 jnettlet uSDHC3 in 8-bit mode
15:39 jnettlet topi`, so luckily you should be able to still boot from the eMMC once you fix the HB-gate
15:45 jnettlet topi`, if you push SPL over the USB-OTG then you should be able to see the fused device it wants to boot from in the console output
15:46 topi` I got it to boot from SDcard
15:47 topi` now it seems I'm missing something from the .dtb file because it did not find the mmc0 at all, so no rootfs
15:52 topi` so, R48 was taken out because the Gate doesn't carry the eMMC?
15:55 topi` jnettlet: can you provide me some patches for 4.x kernel for the -som-v15.dtbs?
15:55 jnettlet topi`, yep. I am trying to figure out why that matters. Because the 1.5 som works fine with the HB Base and Pro
15:55 jnettlet topi`, sure
15:59 topi` I just copied the hummingboard2.dtb (that works on our older boards) to hummingboard2-som-v15.dtb but it did not find the SDcard
15:59 topi` the kernel did not find, I mean
16:09 jnettlet topi`, is it even looking for it?
16:13 topi` nope. mmc0: new high speed SDIO card at address 0001
16:14 topi` the a few messages about mmc1 and mmc2
16:14 Artox I hope this isn't the situation I ran into where m.2 fooled boarddetect into treating hb2 as hb1
16:14 Artox but that happened as early as u-boot, so you should know if or not
16:14 topi` probably not
16:14 topi` OF: fdt: Machine model: SolidRun HummingBoard2 Dual/Quad
16:14 topi` says the kernel in the very beginning
16:20 jnettlet topi`, can you stop break into u-boot so we can run some commands?
16:20 topi` ok
16:21 topi` there we are
16:22 topi` board=mx6-hummingboard2
16:22 topi` board_fdt=try
16:22 topi` CPU: Freescale i.MX6Q rev1.6 at 792 MHz
16:23 topi` MMC: FSL_SDHC: 0, FSL_SDHC: 1
16:25 topi` mmc list returns both "FSL_SDHC: 0" and "FSL_SDHC: 1" but the second one is indented by one space
16:28 jnettlet topi`, specifically run. env print cpu; env print board; env print somrev
16:28 jnettlet yes that is correct.
16:28 jnettlet but only 1 will work because the eMMC isn't powered
16:31 topi` yes
16:34 topi` wtf, I'm unable to break the uboot procedure
16:34 topi` 3 2 1 then it boots :)
16:34 topi` maybe the stupid virtualbox is to blame
16:37 topi` maybe the cable is bad :/
16:38 topi` but do you know what has to be modified for the -som-v15.dts?
16:38 topi` I'm unable to get via serial console, I'll try a mnitor and a keybaord
16:48 topi` env print cpu -> cpu=6Q
16:48 topi` board=mx6-hummingboard2
16:48 topi` somrev=-som-v15
16:49 jnettlet okay everything is detected properly
16:50 topi` uboot did say it wanted to have "imx6q-hummingboard2-som-v15.dtb"
16:50 topi` and then I created a symlink :)
16:50 topi` very creative
17:07 topi` I probably need to get back home at this point...
17:39 vpeter jnettlet: Do you have any idea why cubox-i with som v1.5 would not boot libreelec image?
17:39 vpeter It loads kernel, correct imx6q-cubox-i-som-v15.dtb but after 'Starting kernel ...' nothing on console.
17:39 vpeter Same image works fine with cubox-i with old som. Used uboot and kernel from solidrun.
17:39 vpeter https://forum.libreelec.tv/thread-5449-post-42386.html#pid42386
17:47 jnettlet vpeter, just tested a cubox-i with a rev 1.5 som with the latest u-boot and kernel and it booted without any problems.
17:47 jnettlet you probably need to enable earlyprintk in the kernel and then boot to see where it is hanging.
18:26 vpeter But why it would even hang? There is no real reason.
18:39 vpeter Do I need to set earlyprint parameter in boot params too?
19:07 jnettlet vpeter, yes
19:08 jnettlet it hangs generally because it can't use the device-tree file for whatever reason
19:09 vpeter good enough? earlyprintk=serial,ttymxc0,115200,keep
19:09 jnettlet you should just need earlyprintk. The other parts are set in the kernel config now
19:09 jnettlet but that should still work fine
19:09 vpeter How do I know it is working? :)
19:10 jnettlet you will see output after uncompressing kernel
19:13 vpeter I see. Sending image to user to test it.
19:15 jnettlet vpeter, or you could send it to me :)
19:16 vpeter sure: http://vpeter.libreelec.tv/imx6-solidrun-kernel-3.14/tmp/LibreELEC-imx6.arm-8.0.1-sr-3.14-cubox-i-som-v15.img.gz
19:28 jnettle 19:28 * jnettlet downloading
19:28 vpeter If this works then try also original version http://vpeter.libreelec.tv/imx6-solidrun-kernel-3.14/LibreELEC-imx6.arm-8.0.1-sr-3.14.img.gz
19:29 vpeter this one doesn't have serial console enabled by default (needs to set in uenv.txt).
20:05 mhilt jnettlet -- are you still there?
20:56 jnettlet mhilt, sure thing
20:57 jnettlet just getting some chow
20:58 mhilt understood -- if you have a moment, maybe you can point me in the right direction ...
20:58 jnettlet sure. what do you need me to look at?
20:59 mhilt I have just been having trouble getting this parallel ov5640 module to build ...
21:00 mhilt I did find that it apparently built, but then was not being put into the resulting module rpm ...
21:03 mhilt I tried putting that module directly into my FS ... and it seems to load with insmod but not modprobe, but does not get associated with the CSI correctly
21:03 mhilt in general though, I'm not sure how I should be cleanly making these changes in Yocto ...
21:04 mhilt one problem I have, is that when I rebuild core-image-x11, I lose any changes I had made before
21:05 mhilt if I just compile linux-solidrun-imx6, it seems okay, but I don't get a new rootfs
21:06 mhilt I guess I'm asking generally, what changes I should make to build the parallel ov5640, and then how I should build them
21:11 jnettlet mhilt, well you should be able to just make the kernel config changes to the defconfig for our meta-layer.
21:12 jnettlet or if you want this to be long term then make your own meta-layer and use a .bbappend to our kernel to include your defconfig with the changes you want.
21:12 mhilt then should I just bitbake core-image-x11 ?
21:12 mhilt or bitbake linux-solidrun-imx6 ?
21:15 jnettlet for either one you will need to bitbake core-image-x11. You can use -k to only make changes since the last failure which can save some time.
21:15 mhilt so the changes I should make, should be in /poky/meta-solidrun-arm-imx6/recipes-kernel/linux/linux-solidrun-imx6-3.14.1.0/defconfig ?
21:16 jnettlet yes. Changing that will cause bitbake to rebuild the kernel with that configuration.
21:17 mhilt okay ... so I have CONFIG_MXC_CAMERA_OV5640=m
21:17 mhilt and # CONFIG_SOC_IMX6SX is not set
21:17 mhilt what else should be changed to build the /capture/ov5640.c vs /subdev/ov5640.c ?
21:18 mhilt with the defconfig like that, I only get the /subdev module
21:21 jnettlet based on what I looked at the other day, those should be the only changes.
21:21 jnettlet but wait a couple of seconds and I can verify it quickly
21:25 jnettlet mhilt, actually I see the problem. NXP's build config is buggy
21:27 mhilt which config? :-)
21:27 jnettlet well it is buggy but it doesn't get in the way. The kernel module you should be using is. ov5640_camera_int.ko
21:28 mhilt eh ... I wondered that
21:28 mhilt I see in the Makefile ... ov5640_camera_int-objs := ov5640.o
21:28 mhilt obj-$(CONFIG_MXC_CAMERA_OV5640) += ov5640_camera_int.o
21:29 mhilt I thought the int module was somehow related to mipi ... that's not the case?
21:30 jnettlet no, you should be using that.
21:31 mhilt sigh ... okay, I did have that all along
21:40 jnettlet mhilt, yes but does loading that find your camera?
21:40 mhilt heh, was just trying ...
21:40 mhilt it loads without complain
21:40 mhilt but I can't use it
21:41 mhilt i2c is fine
21:41 mhilt would I need to change the device tree?
21:50 jnettlet mhilt, it doesn't look like it. It should be using i2c to identify the device.
21:51 mhilt there's no dmesg that says 'ov5640 found' ...
21:53 mhilt if I change the Makefiles in /build/tmp/work-shared/solidrun-imx6/kernel-source/drivers/media/platform/mxc/capture and /subdev ... can I then build the changes with bitable core-image-x11 ?
21:53 jnettlet yes and you see the device under i2c-2?
21:53 mhilt I do see the device in i2c-2 ... but I do not get the 'ov5640 found' dimes
21:53 mhilt ^dmesg
21:56 jnettlet and you don't seen any errors?
21:57 jnettlet you may want to add debug to your kernel commandline and boot with that.
22:01 mhilt ... something apparently stomped on my dts changes again
22:01 jnettlet mhilt, and you are using. v4l2-ctl --list-devices to check to see if the device is available?
22:01 mhilt I have tried that before, but it always fails
22:02 mhilt says resource unavailable
22:02 mhilt to modify dts, I should edit from /build/tmp/work-shared/solidrun-imx6/kernel-source/arch/arm/boot/dts ?
22:03 mhilt for some reason, some builds stomp on my changes to these
22:04 mhilt to rebuild the device tree, can I edit those, then just bitbake core-image-x11 ?
22:11 jnettlet for just device-tree changes I would recommend you make the changes, rebuild the package and then copy them manually over to your sdhc card
22:12 jnettlet try bitbake -f -c compile virtual/kernel
22:25 mhilt when I use bitbake -f -c compile virtual/kernel , I lose my device tree changes
22:26 mhilt the only way I was able to get the dtb's to rebuild before, was by opening a devshell
22:26 mhilt and make dtbs
22:27 mhilt is this where changes should be made? /build/tmp/work-shared/solidrun-imx6/kernel-source/arch/arm/boot/dts
22:40 jnettlet mhilt, well that is where the kernel source is built. but that is a temporary directory so changes aren't kept across builds
22:43 mhilt yes, I've seen ... to make permanent changes then, I need make a patch?
22:43 jnettlet yes
22:44 jnettlet yep
22:45 mhilt haha, yeah that's definitely a feature of yocto I'm not a fan of
22:52 jnettlet vpeter, here that image boots to a command prompt but kodi doesn't start
23:32 mhilt okay, I fixed the device tree again
23:32 mhilt ov5640_camera is detected / inserted at boot
23:33 mhilt but I assume that's the /subdev module, and does not work
23:33 mhilt I remove that module
23:33 mhilt modprobe ov5640_camera_int
23:33 mhilt I see the loaded module with lsmod, but not really anything in dimes
23:33 mhilt ^dmesg