41 lines
855 B
Nix
41 lines
855 B
Nix
{ config, lib, pkgs, ... }:
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with pkgs;
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{
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# A bunch of boot parameters needed for optimal runtime on RPi 4B
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boot.kernelPackages = linuxPackages_rpi4;
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boot.kernelParams = [
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"zfs.zfs_arc_max=134217728"
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"console=TTYAMA0,115200"
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"console=tty1"
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"8250.nr_uarts=1"
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"iomem=relaxed"
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"strict-devmem=0"
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];
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# Enable SATA-HAT GPIO features
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boot.loader = {
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grub.enable = false;
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generic-extlinux-compatible.enable = lib.mkForce false;
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raspberryPi = {
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enable = true;
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version = 4;
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firmwareConfig = ''
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iomem=relaxed
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strict-devmem=0
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dtoverlay=w1-gpio
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'';
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};
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};
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boot.kernelModules = [ "pwm_bcm2835" "w1-gpio" "w1-therm" ];
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# Load PWM hardware timers
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hardware.raspberry-pi."4".pwm0.enable = true;
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# Enable I2C
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hardware.raspberry-pi."4".i2c1.enable = true;
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}
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