Draft: temp/u-boot-pinephone: drop u-boot in favor of Tow-Boot

We've moved the PPP to Tow-Boot, let's do the same with the OG PP! This allows us to drop our custom u-boot package and boot with both extlinux and UEFI, and it standardizes booting over both the PinePhone's.

Eventually I'd like us to move to UEFI booting but we have to figure out how to do that properly without breaking existing installations, thus we'll stay on extlinux for now.

UEFI support is added as a separate commit, not sure if it will break existing installations.

Blockers that have to be figured out before this get merged as to not break some custom setups:

• #1531: load pmOS_root / pmOS_boot partitions by UUID instead of label (-> also fixes #1485 (closed))
• !2665 (merged)
  • Does Tow-Boot work as is with the Vccq hardware mod? I can't test this myself
• https://gitlab.postmarketos.org/postmarketos/pmaports/-/merge_requests/1998
  • Can we still provide the option to choose the RAM hz when using Tow-Boot? Again, I can't test this myself
  • We'll just drop this feature and use 528 MHz, there was not enough gain from this, see comment below.
• should make everything work with on-device installer: make sure everything works with installing to SD, installing to eMMC, adjust if needed. (after #1531)

device/main/device-pine64-pinephone/APKBUILD

@@ -4,13 +4,14 @@
 # Co-Maintainer: Luca Weiss <luca@z3ntu.xyz>
 # Co-Maintainer: Dylan Van Assche <me@dylanvanassche.be>
 pkgname=device-pine64-pinephone
-pkgver=0.42
-pkgrel=3
+pkgver=0.44
+pkgrel=0
 pkgdesc="PINE64 PinePhone"
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"
-options="!check !archcheck"
+# pmb:strict is required for grub
+options="!check !archcheck pmb:strict"
 subpackages="
 	$pkgname-gnome
 	$pkgname-nonfree-firmware:nonfree_firmware
@@ -39,7 +40,12 @@ depends="
 	fwupd-plugin-modem_manager
 	fwupd-plugin-upower
 	"
-makedepends="devicepkg-dev dtc"
+makedepends="
+	devicepkg-dev
+	grub
+	grub-efi
+	dtc
+	"
 install="$pkgname.post-install $pkgname.post-upgrade $pkgname.pre-upgrade"
 source="
 	00_alsa_pinephone_dshare.conf
@@ -51,6 +57,8 @@ source="
 	90-modem-eg25.rules
 	UPower.conf
 	deviceinfo
+	grub.cfg
+	grub_early.cfg
 	gpsd_device-hook.sh
 	gpsd_pinephone.initd
 	hwtest.ini
@@ -73,6 +81,8 @@ provides="$pkgname-elogind=$pkgver-r$pkgrel"
 
 build() {
 	devicepkg_build $startdir $pkgname
+
+	# Legacy U-Boot script installs
 	mkimage \
 		-A arm \
 		-O linux \
@@ -83,7 +93,7 @@ build() {
 		-n postmarketos \
 		-d "$srcdir"/uboot-script.cmd \
 		"$srcdir"/boot.scr
-	# Build user U-boot script for vccq-mod
+	# Build legacy user U-boot script for vccq-mod
 	mkimage \
 		-A arm \
 		-O linux \
@@ -94,6 +104,36 @@ build() {
 		-n postmarketos-user \
 		-d "$srcdir"/uboot-user.cmd \
 		"$srcdir"/user.scr
+
+	# UEFI installs
+	grub-mkimage \
+		--config="$srcdir/grub_early.cfg" \
+		--prefix="" \
+		--output="bootaa64.efi" \
+		--format="arm64-efi" \
+		--compression="xz" \
+		\
+		all_video \
+		cat \
+		configfile \
+		disk \
+		echo \
+		efi_gop \
+		fat \
+		gzio \
+		help \
+		iso9660 \
+		linux \
+		ls \
+		normal \
+		part_gpt \
+		part_msdos \
+		search \
+		search_label \
+		test \
+		true
+
+
 	# Build Device Tree Overlay for vccq-mod
 	dtc \
 		-@ \
@@ -108,10 +148,10 @@ package() {
 	install -Dm644 "$srcdir"/boot.scr \
 		"$pkgdir"/boot/boot.scr
 
-	# Make /boot/allwinner/sun50i-a64-pine64-pinephone*.dtb resolve to
-	# /boot/sun50i-a64-pine64-pinephone*.dtb. This is because the device tree
-	# names in u-boot include the vendor and the one in postmarketOS doesn't.
-	ln -s .. "$pkgdir"/boot/allwinner
+	install -Dm644 -t "$pkgdir"/boot/grub \
+		"$srcdir"/grub.cfg
+	install -Dm644 -t "$pkgdir"/boot/EFI/Boot \
+		"$srcdir"/bootaa64.efi
 
 	install -Dm644 "$srcdir"/hwtest.ini \
 		"$pkgdir"/usr/share/hwtest.ini
@@ -199,6 +239,7 @@ vccq_mod() {
 	pkgdesc="Install only if you have done the Vccq hardware mod https://postmarketos.org/pp-vccq-mod"
 	install -Dm644 "$srcdir"/user.scr \
 		"$subpkgdir"/boot/user.scr
+
 	install -Dm644 "$srcdir"/pinephone-vccq-mod.dtbo \
 		"$subpkgdir"/boot/pinephone-vccq-mod.dtbo
 }
@@ -218,7 +259,9 @@ bac664c504d9a3adc6e3d25f24ac63cf7c449a82374544a5b56c259dc25af580897b9dc992865ac8
 8b6fa7b12c15f439c561901f3ffe24a1ef2a0c343401c0a79281060854ab29e08a1fb5e7adae8684b12aa9f535ed99e2dad993dce9724822cb0fbf2497dd86e5  70-wifi-pm.rules
 9cb52e3c5d63dde68296f4c1f9b691629182f82181a7f0877a72aad6870698ea9e7d628309970afbcce01041274054d304de1ee3faf8c1d101f7f8e988a43098  90-modem-eg25.rules
 ed0e03f7e1c0348c06be9a7922414469245604ce813bbf0c8910ef211cb993bbb0d0d4615c9c961d50712415f85d6b73e0cf02780ac784666aac56e4889341e4  UPower.conf
-4a3e607a8e8249668195c472ba181149add65be515360b4d0f465b9c798e7bf8b2f2e431eb3e95cd8620c2a580779c665762f0386239b2fb2a64352e46702edb  deviceinfo
+132ae4325455bcd872fda2ae65ba4eb8b838dc693630327471864048d754ed88b6f8529750bd7ee579ddd51e460ad2c4e8006cd06cdae6e5e153bb10056780a9  deviceinfo
+029ae9f2495c6fdac47e86a9d9d53dbb948d91a359437a94a97fb19996fc736a57ac074a2fc0f0e25ba80e2a3c195f88426f055860be68c2958fb184869ce04f  grub.cfg
+0f9357d4eea089628fbceb1e3e96d21a3f4329aeb6743158a6f877f967ef274506404eba949d5f01b7e1adea149f9a3aef992a5e8cd4181f93ab00909b1c5ecd  grub_early.cfg
 ccbc83b84b5028bc2c8e526759004ce71b50b2675ecffee98f5676c70a3332197a231ff9d2fd46444dd3c0a637ec08ce6125b18240fe6bfc13f624a15192e648  gpsd_device-hook.sh
 1017fc3f325227da58c77abdc59e9735288d91a7ccc63ec784fe0241c523786b617a11ce8045dab2a74ca12a7dd70aaa334af91836418db1e96a3266fecaa4fd  gpsd_pinephone.initd
 3dd6d612c381cb0002049d1974d8fb5aa5a53a1eb4d6bcbf62eb2ad52cfdc45f0f6ad24a699716d3513b0371aa1316f25dc72afc10d7176cc3b99d0965c3f030  hwtest.ini