diff --git a/alarm/firmware-gru/HiFi.conf b/alarm/firmware-gru/HiFi.conf
new file mode 100644
index 000000000..3f11cba8f
--- /dev/null
+++ b/alarm/firmware-gru/HiFi.conf
@@ -0,0 +1,152 @@
+SectionVerb {
+	Value {
+		OutputDspName "speaker_eq"
+		FullySpecifiedUCM "1"
+	}
+	EnableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Stereo1 DMIC Mux' DMIC1"
+		cset "name='Sto1 ADC MIXL DMIC Switch' on"
+		cset "name='Sto1 ADC MIXR DMIC Switch' on"
+
+		cset "name='Mixer Out FilterL DACL Switch' on"
+		cset "name='Mixer Out FilterR DACR Switch' on"
+		cset "name='Playback Digital Switch' on"
+		cset "name='Headphone Switch' on"
+
+		cset "name='Mixin Volume' 11"
+		cset "name='Mixin Switch' on"
+		cset "name='Mixer In Mic Switch' on"
+		cset "name='Out DAIL Mux' ADC"
+		cset "name='Out DAIR Mux' ADC"
+		cset "name='ADC1 Capture Volume' 51"
+		cset "name='Mic Volume' 6"
+		cset "name='Capture Digital Switch' on"
+		cset "name='Mic Switch' on"
+
+		cset "name='Headphones Switch' off"
+		cset "name='Headset Mic Switch' off"
+	]
+	DisableSequence [
+	]
+}
+
+SectionDevice."Speaker".0 {
+	Value {
+		PlaybackPCM "hw:rk3399-gru-sound,0"
+		MixerName "Speakers"
+	}
+	EnableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Speakers Switch' on"
+	]
+	DisableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Speakers Switch' off"
+	]
+}
+SectionDevice."Internal Mic".0 {
+	Value {
+		CapturePCM "hw:rk3399-gru-sound,1"
+		MixerName "ADC1"
+		CaptureRate "48000"
+	}
+	EnableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Int Mic Switch' on"
+	]
+	DisableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Int Mic Switch' off"
+	]
+}
+SectionDevice."Headphone".0 {
+	Value {
+		PlaybackPCM "hw:rk3399-gru-sound,2"
+		MixerName "Headphone"
+		JackType "gpio"
+		JackName "rk3399-gru-sound Headset Jack"
+		JackSwitch "2"
+		OutputDspName ""
+	}
+	EnableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Headphones Switch' on"
+		cset "name='DAC Soft Mute Switch' off"
+		cset "name='Headphone Switch' on"
+	]
+	DisableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Headphone Switch' off"
+		cset "name='DAC Soft Mute Switch' on"
+		cset "name='Headphones Switch' off"
+	]
+}
+SectionDevice."Line Out".0 {
+	Value {
+		PlaybackPCM "hw:rk3399-gru-sound,2"
+		MixerName "Headphone"
+		JackType "gpio"
+		JackName "rk3399-gru-sound Headset Jack"
+		JackSwitch "6"
+		OutputDspName ""
+	}
+	EnableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Headphones Switch' on"
+		cset "name='DAC Soft Mute Switch' off"
+		cset "name='Headphone Switch' on"
+	]
+	DisableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Headphone Switch' off"
+		cset "name='DAC Soft Mute Switch' on"
+		cset "name='Headphones Switch' off"
+	]
+}
+SectionDevice."Mic".0 {
+	Value {
+		CapturePCM "hw:rk3399-gru-sound,2"
+		MixerName "Mic"
+		JackType "gpio"
+		JackName "rk3399-gru-sound Headset Jack"
+		CaptureRate "48000"
+	}
+	EnableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Headset Mic Switch' on"
+	]
+	DisableSequence [
+		cdev "hw:rk3399grusound"
+
+		cset "name='Headset Mic Switch' off"
+	]
+}
+SectionDevice."HDMI".0 {
+	Value {
+		PlaybackPCM "hw:rk3399-gru-sound,3"
+		JackName "rk3399-gru-sound DP Jack"
+		JackType "gpio"
+		OutputDspName ""
+		EDIDFile "/sys/class/drm/card1-DP-1/edid"
+	}
+}
+SectionDevice."Wake on Voice".0 {
+	Value {
+		CapturePCM "hw:rk3399-gru-sound,4"
+	}
+	EnableSequence [
+	]
+	DisableSequence [
+	]
+}
diff --git a/alarm/firmware-gru/PKGBUILD b/alarm/firmware-gru/PKGBUILD
new file mode 100644
index 000000000..ad78dbfda
--- /dev/null
+++ b/alarm/firmware-gru/PKGBUILD
@@ -0,0 +1,20 @@
+# Maintainer: Kevin Mihelich <kevin@archlinuxarm.org>
+
+buildarch=8
+
+pkgname=firmware-gru
+pkgver=1.0
+pkgrel=1
+pkgdesc="Additional firmware for Gru chromebooks"
+arch=('aarch64')
+url="https://archlinuxarm.org"
+license=('custom')
+source=('rk3399-gru-sound.conf'
+        'HiFi.conf')
+md5sums=('fa7ad41bc99ed3fe90e5725f70360428'
+         'e76ab605dadfca14689de1d40233dae5')
+
+package() {
+  install -m 0755 -d "${pkgdir}/opt/alsa/ucm/rk3399-gru-sound"
+  install -m 0644 rk3399-gru-sound.conf HiFi.conf "${pkgdir}/opt/alsa/ucm/rk3399-gru-sound"
+}
diff --git a/alarm/firmware-gru/rk3399-gru-sound.conf b/alarm/firmware-gru/rk3399-gru-sound.conf
new file mode 100644
index 000000000..f91d50333
--- /dev/null
+++ b/alarm/firmware-gru/rk3399-gru-sound.conf
@@ -0,0 +1,6 @@
+Comment "Kevin internal card"
+
+SectionUseCase."HiFi" {
+	File "HiFi.conf"
+	Comment "Default"
+}