On Fri, 2021-06-18 at 15:59, Andrei POPESCU wrote: > On Vi, 11 iun 21, 19:24:45, Milan P. Stanić wrote: > > On Fri, 2021-06-11 at 10:03, Andrei POPESCU wrote: > > > > > > [1] writing this on an Acer Chromebook R13 running an ancient kernel > > > from archlinuxarm.org that would benefit from mainline support. > > > > Also I'm writing this on 'Acer Chromebook R13' but with mainline kernel > > 5.12.10 with three patches I added. > > Are those patches published somewhere (and what are they for)?
Yes, here: https://git.alpinelinux.org/aports/tree/testing/linux-elm one is to fix mmc devices order to not be random. one to 'cut' down external mmc frequency. and one to fix spi nor frequency. > > It is really good machine though it > > is four years old. Only suspend-to-ram doesn't work with kernels 5.11 > > and 5.12 but it worked with previous kernels, 5.8 and 5.9 iirc. > > > > Again shameless plug: I wrote small note and script to install alpine > > linux on R13, here > > https://arvanta.net/alpine/install-alpine-on-acer-r13-chromebook/ > > As far as I can tell that script must be run from within an already > existing Alpine Linux install. Yes, but if using apk-tools-static pkg (alpine package manager) it can be run from any linux distribution. > Am I guessing correctly that the package > linux-elm contains the > kernel image? I'd rather try and extract the > kernel + modules only as I have no intention to move away from Debian. Right, you can download linux-elm pkg from: https://dl-cdn.alpinelinux.org/alpine/edge/testing/aarch64/linux-elm-5.12.10-r0.apk and untar it. You will have modules and vmlinux.kpart image in /boot dir which you can flash (dd) to chromebook kernel partition. note: I didn't intended to tell that you or anyone should move from debian, just wanted to help by pointing to that what I did to get R13 work with mainline kernels. > A list of options that must be enabled in the kernel for the R13, as > well instructions for building the image to be flashed to the kernel > partition would also be very helpful. In /boot you can find kernel config file which you can use as a base for your own kernels. > With these we might be able to get full support for the R13 in the > Debian kernel and flash-kernel. You can look at https://git.alpinelinux.org/aports/tree/testing/linux-elm/APKBUILD which is alpine build recipe and is written in posix shell (ash) and look how it is built. Some of this ideas are 'stolen' from Arch Linux alarm -- Kind regards > Kind regards, > Andrei > -- > http://wiki.debian.org/FAQsFromDebianUser
