10:30 <lucastanure> Hi, is git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git the best kernel to use with vim3, or there is another tree to be used?

10:31 <lucastanure> also, which configuration should be used?

10:31 <lucastanure> for vim3 board

11:31 <narmstrong> lucastanure: yes

11:32 <narmstrong> lucastanure: https://github.com/kdave/btrfs-devel/blob/master/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts

11:32 <narmstrong> lucastanure: Khadas also provides the mainline kernel in their fenix build system and prebuilt images

11:58 <chewitt> @lucastanure unless you're one of the ~10 people with the S992X version of VIM3 this is the one to use:

11:58 <chewitt> https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts

12:15 <lucastanure> and the config for the kernel? /proc/config.gz from VIM3_Ubuntu-server-focal_Linux-5.7-rc7_arm64_SD-USB_V0.9-20200530 ?

12:26 <brads> chewitt: looks like you might have a potential fix on the mailing list for you usb issue

12:28 <chewitt> lucastanure what kernel do you want to build? .. and what use-case for the VIM3?

12:29 <chewitt> brads sadly didn't work, but some email convo now taking place

12:29 <chewitt> narmstrong just reminded me the GT-King Pro randomly has a huge RS232 port on the rear so no need for UART pins :)

12:30 <brads> :)

12:33 <narmstrong> lucastanure: defconfig :-)

12:35 <chewitt> this is the defconfig I'm using with 5.9-rc6 https://github.com/chewitt/LibreELEC.tv/blob/amlogic/projects/Amlogic/linux/linux.aarch64.conf

12:35 <chewitt> but this is a bit minimal compared to a desktop oriented config, e.g. Armbian

15:02 <hexdump0815> just in case anyone is interested i managed to get a mainline u-boot working on a s905x3 tv box (x96 air 2/16) with directly booting u-boot

15:02 <hexdump0815> i.e. no chainloading but replacing the legacy one instead

15:03 <hexdump0815> https://pastebin.com/raw/ruiG88aQ

15:03 <hexdump0815> i also gave the g12a mainline atf a try, but this does not seem to work: https://pastebin.com/raw/jPfHmRkR

15:04 <hexdump0815> i guess there really needs to be some sm1 specific code written to support this soc in mainline atf - with the original atf it works

15:06 <hexdump0815> i used the meson64-tools from angermann: to assemble the pieces and had to dd edit out the proper ddr timings from mmcblkboot1 (from which most tv boxes seem to read it) to put it into an an acs.bin

15:08 <hexdump0815> btw. regarding my mainline atf try: it also complains about "NO BL2z!" - does anyone know what BL2z is? - seems to no be part of bl2 as for that i used an original sm1 blob (odroid c4)

15:18 <lucastanure> <chewitt> I just want to build the default kernel and start lokking around to help vim3 mainline

15:19 <lucastanure> as narmstrong said, I will just use arm64 defconfig from mainline

15:32 <lucastanure> to change the kernel uboot points to dtb.img, but just say which kernel image is using

15:32 <lucastanure> but at /boot there only one

15:32 <lucastanure> zImage

15:32 <lucastanure> so, I will replace that

15:48 <lucastanure> the target Image works, but not the Zimage one for vim3

17:34 <narmstrong> Damn hexdump0815 always leaves :-/

17:34 <narmstrong> I found the bl31 error on sm1, https://github.com/ARM-software/arm-trusted-firmware/blob/73740d98d99cb740ff67e188b6a7c1db816bf9f4/plat/amlogic/g12a/platform.mk#L25

17:34 <narmstrong> It should be a55 for sm1

18:23 <hexdump0815> narmstrong: sorry - i'm back again - i'm always following the irc logs even if i'm not online, so i usually see if there is anything for me even then

18:25 <hexdump0815> narmstrong: good info - will give that a try then

18:27 <hexdump0815> narmstrong: repk: or maybe others too - is there somewhere documented what the FEAT: flags mean on the amlogic initial boot line? i ran across: https://forum.libreelec.tv/thread/21895-install-le-on-dead-a95x-max-v81/?postID=139979#post139979 so looks like the know how must be somewhere :)

18:28 <hexdump0815> i'm asking because ia lso tried getting native mainline u-boot working on a g12a tv box and failed with https://github.com/hexdump0815/u-boot-misc/blob/gxm-experiments/misc.gxy/debug-info/g12a-non-working-boot.txt and today i realized that the original boot blocks are just kind of random data

18:30 <hexdump0815> so i guess this box is using a signed/crypted boot chain and this would mean i guess no self built u-boot can be used on it - so it would be nice to know if signing and or encryption is required there or optional

18:33 <hexdump0815> or it is simply that g12a simply needs some other magic number somewhere in the regular boot blocks to be properly recognized by bl1 (i.e. CHK:1F which i guess means error)

18:39 <B1oHazard> narmstrong hi, do you know how to check locked or not bootloader on G12A device? can't run mainline u-boot on X96 Max Plus, chainloading from vendor u-boot works fine. thanks

18:40 <hexdump0815> narmstrong: looks like for a55 some more changes are required, i.e. changing USE_COHERENT_MEM to HW_ASSISTED_COHERENCY

18:44 <hexdump0815> B1oHazard: oh the x96maxplus is locked too - so you do not have any @AML in there if you do a hexdump -C /dev/youremmcdevice?

18:44 <B1oHazard> hexdump0815 1 minute, checking

18:49 <B1oHazard> hexdump0815 yeah, @AML in 0x210

18:50 <hexdump0815> BioHazard: then i think its not locked

18:51 <B1oHazard> hexdump0815 can you share your binary please?

18:52 <angelsl> does anyone have any background/leads on the issue with usb on odroid-c2? https://forum.odroid.com/viewtopic.php?p=293439#p293439

18:55 <hexdump0815> narmstrong: it works :) - https://pastebin.com/raw/b38KcMrm - with the diff and cmdline at the top of the pastebin ... is the "NO BL2z!" something to worry about? ... so i guess sm1 is then supported by mainline atf too - very nice!

18:56 <B1oHazard> hexdump0815 chainloading mainline u-boot with odroidc4 defconfig works well for me, but after I add fip packages, erasing emmc and burn it to sdcard, box didn't start

19:01 <hexdump0815> B1oHazard: yes i ran into that too - tv boxes seem to read the ddr timings from mmcblkXboot0 - i guess they use worse memory then what the timing in the blob acs.bin assumes - i dd edited out the acs.bin part from boot0 and replaced the acs.bin blob with that and then it worked

19:05 <B1oHazard> hexdump0815 erasing emmc and writing u-boot to sdcard will work ok?

19:07 <B1oHazard> hexdump0815 and where i can find fip? from odroid c4 will ok?

19:07 <hexdump0815> BioHazard: you might give this one a try: https://github.com/hexdump0815/u-boot-misc/releases/download/200926-01/boot-amlogic_gxy_atf-aarch64-x96-air.dd ... i'm testing it with that magic hdmi dongle to force booting from sd card and this way it works

19:10 <hexdump0815> narmstrong: do you maybe also have a similarly simple solution for gxm mainline atf as well to fix this one: https://github.com/repk/gxlimg/issues/8 ?

19:12 <B1oHazard> hexdump0815 can you give any info about that hdmi dongle?

19:14 <narmstrong> hexdump0815: it would need more work since it supports 2 cpu clusters

19:14 <narmstrong> hexdump0815: so maybe the pcsi calls should be modified

19:16 <narmstrong> I don’t think the NO BL2z is an issue

19:17 <hexdump0815> narmstrong: let me know whenever you have an idea for gxm to test

19:19 <hexdump0815> BioHazard: https://github.com/superna9999/linux/wiki/Amlogic-HDMI-Boot-Dongle

19:21 <narmstrong> hexdump0815: sorry i don’t...

19:22 <hexdump0815> narmstrong: np - i guess you already do more than enough for open sourcing amlogic stuff :)

19:22 <B1oHazard> hexdump0815 can you share acs.bin that you used? seems your u-boot works well, but with broken hdmi. want to rebuild on odroid-c4 defconfig

19:30 <hexdump0815> BioHazard: its all here now - i've also just rebuilt the mainline atf with proper a55 errata - https://github.com/hexdump0815/u-boot-misc/releases/tag/200926-01

19:35 <B1oHazard> hexdump0815 i dump my bootloader and find acs part, so I can strip all before 0xF200 and use it as acs.bin?

19:39 <hexdump0815> BioHazard: no - dump /dev/mmcblkXboot0 and then dump the part of it which looks like the regular acs.bin in hexdump -C :) ... only makes sense if you have this in your legacy boot: https://github.com/hexdump0815/u-boot-misc/blob/gxm-experiments/misc.gxy/debug-info/sm1-working-ddr.txt#L38-L46

19:42 <hexdump0815> BioHazard: btw. in case you have reliable hdmi output and usb kbd input working on your sm1 u-boot i would be interested in your u-boot config and if needed patches ...

20:13 <hexdump0815> i have updated my notes regarding mainline atf & u-boot on s905x3 = sm1 to my current state: https://github.com/hexdump0815/u-boot-misc/blob/gxm-experiments/readme.gxy