feat: add raspberrypi-firmware

This adds Raspberry Pi boot firmware.

Signed-off-by: Andrew Rynhard <andrew@rynhard.io>

Makefile

@@ -22,7 +22,7 @@ TARGETS =  ca-certificates  cni  containerd cryptsetup dosfstools  eudev  fhs  g
 all: $(TARGETS) ## Builds all known pkgs.
 
 arm64:
-	$(MAKE) TARGETS=u-boot PLATFORM=linux/arm64
+	$(MAKE) TARGETS="u-boot raspberrypi-firmware" PLATFORM=linux/arm64
 
 .PHONY: help
 help: ## This help menu.

raspberrypi-firmware/pkg.yaml

@@ -0,0 +1,22 @@
+name: raspberrypi-firmware
+variant: scratch
+shell: /toolchain/bin/bash
+dependencies:
+  - stage: base
+steps:
+  - sources:
+      - url: https://github.com/raspberrypi/firmware/archive/1.20201022.tar.gz
+        destination: raspberrypi-firmware.tar.gz
+        sha256: 95a944d45e19403be9e54ca645d2fb439dac2d862d6d2da0485a4a03192a8d74
+        sha512: 876758179df27109984b6c3f4849fdcdc6bdcc2769495fcc83c97fc3ff4d07b9f3cd58086be877503f72c9e5417d2be6d6c33bce4cbb3b862055117c9cc26db8
+    prepare:
+      - |
+        mkdir -p raspberrypi-firmware
+        tar -xzf raspberrypi-firmware.tar.gz --strip-components=2 -C raspberrypi-firmware firmware-1.20201022/boot
+    install:
+      - |
+        mkdir -p /rootfs/boot
+        cp -av raspberrypi-firmware/* /rootfs/boot/
+finalize:
+  - from: /rootfs
+    to: /