Talk:NixOS on ARM/Raspberry Pi 4: Difference between revisions
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I know my path led past here, which is why I'm posting, but I know it involved a lot of negotiating with Hydra's willingness to purge long-running queries and finding a way to list successful sd_image_new_kernel.aarch64-linux builds (maybe via [https://hydra.nixos.org/search?query=nixos-sd-image-21.11pre this query?]. Following that logic has been somewhat of a mixed bag, eg today I've unsuccessfully attempted to get both [https://hydra.nixos.org/build/154444353 build #154444353] and [https://hydra.nixos.org/build/154444322 build #154444322] to run. | I know my path led past here, which is why I'm posting, but I know it involved a lot of negotiating with Hydra's willingness to purge long-running queries and finding a way to list successful sd_image_new_kernel.aarch64-linux builds (maybe via [https://hydra.nixos.org/search?query=nixos-sd-image-21.11pre this query?]. Following that logic has been somewhat of a mixed bag, eg today I've unsuccessfully attempted to get both [https://hydra.nixos.org/build/154444353 build #154444353] and [https://hydra.nixos.org/build/154444322 build #154444322] to run. | ||
== Enabling the SPI == | |||
This section is confusing, mostly because it has factual errors and i can't get it to work. | |||
For starters, it talks about <code>dtsoFile = ./spi0-0cd.dtso;</code>, which should probably be <code>dtboFile = ./spi0-0cs.dtbo;</code> (note the ''dtbo'' and ''cs'' part, the page mentions ''dtso'' and ''cd'') - at least that is my idea, if i look at the link's (below) target, which is <code>https://github.com/raspberrypi/firmware/blob/master/boot/overlays/spi0-0cs.dtbo</code> | |||
Also, it is unclear on how one should ''change the <code>compatible</code> field'' in a dtbo-file - editing is only possible on their corresponding source files - while the text actually mentions ''dtbo'' here ;) | |||
I've adapted my configuration to this but don't get any spi devices (nor does <code>spi</code> appear in dmesg). I'm also wondering wether using <code>boot.kernelPackages = pkgs.linuxPackages_rpi4;</code> is still relevant (it is mentioned in [https://github.com/NixOS/nixos-hardware/issues/565 nixos-hardware-issues/565]) while some other user claims that "using nixos-hardware wasn't necessary anymore" ([https://github.com/NixOS/nixos-hardware/issues/631#issuecomment-1584100732 nixos-hardware/issues/631] - maybe unrelated) | |||
It would probably help, if someone knowledgeable can verify these instructions and in general clarify the confusions i mentioned. | |||
Thanks in advance, [[User:Riot|Riot]] ([[User talk:Riot|talk]]) 21:44, 3 April 2024 (UTC) | |||