09:38 <spawacz> apritzel: Timing buffered disk reads: 68 MB in 3.02 seconds = 22.51 MB/sec

10:13 <tokyovigilante> electricworry: I'm just working on a v10 of the display engine patches, then will send a new LCD series with macromorgan's fixes. Then there are YUV and HDMI patches on top which I will clean up as a new out-of-tree branch, but they will need rework and input form jernej and others before they are ready for mainline

11:48 <BroderTuck> So, the T60ai has arrived, and first thing I had to do in android was disable the "Locking screen sounds" option, because the sound lag there was just atricious. Anyways, following the recipe on the P85T wiki page (adjusting load address to 0x47480 as on the P50ai) gives me 1903 for socid and "32805f00 7c004900 01611720 5087228e" as chipid

15:47 <electricworry> tokyovigilante: Thanks. I will keep an eye on the mailing list.

16:08 <electricworry> I've been using Yocto to build Orange Pi Zero 3 images for testing. Do people have recommendations for a more lightweight apparatus for quickly testing kernel changes on devices? I find the change-build-flash loop for testing code changes to be a bit unweildy.

16:42 <apritzel> electricworry: there are quite some ways, depends on what you prefer: you can for instance build mainline U-Boot and flash that to the SPI flash: https://docs.u-boot.org/en/latest/board/allwinner/sunxi.html#installing-on-spi-flash

16:43 <apritzel> electricworry: then load the kernel via Ethernet/TFTP, either with some simple initrd, or with a rootfs from SD card

16:44 <apritzel> or you load U-Boot and the kernel via FEL: sunxi-fel uboot u-boot-sunxi-with-spl.bin write 0x40080000 Image.gz

17:07 <electricworry> apritzel: That sounds excellent. I've played around with FEL mode for testing baremetal code on some boards but not for loading the kernel. Is it possible to load a minimal rootfs with some userland tools also via that method?

18:12 <apritzel> electricworry: yes, I made a script to load U-Boot, the kernel and my testing initramfs, and automatically boot it

18:14 <apritzel> (or you just add: "write 0x4ff00000 initramfs.gz")

18:20 <apritzel> https://gist.github.com/apritzel/22d5d2a8f87625e477a9b2a3209c0381

18:23 <apritzel> oh, and I recommend to gzip your kernel before uploading it, that saves quite some time (the BootROM OTG implementation isn't particularly fast). U-Boot detects the compression automatically and decompresses it

20:18 <electricworry> apritzel: Thank you very much! I should have a few hours this week to test that all out. I'll ask further questions only if I run into a wall. You're tremendously helpful here.

20:49 <dlan> for compression, just use "make Image.gz" to build the kernel image