temp/u-boot-pinephone: new aport (!1049)

This adds a package that builds u-boot from the pine64/u-boot repository
which includes patches for enableing less hardware while booting so
there's quicker feedback that the power button has been pressed.

It also has a seperate patch file that modifies the clockspeed for the
memory which is one of the main performance bottlenecks of the A64 SoC.
It's a patch file so it's quick and easy to test out other clock speeds
when building. 600Mhz is stable but it should be able to run up to
624Mhz.

temp/u-boot-pinephone/APKBUILD

@@ -0,0 +1,40 @@
+# U-boot with patches to make the PinePhone boot faster and have control over the ddr clock speed
+
+pkgname=u-boot-pinephone
+pkgver=2020.04_git20200228
+pkgrel=0
+_commit="ec643935990b517e96ba9676eb0093b9bec96189"
+pkgdesc="u-boot bootloader for the PINE64 PinePhone"
+url="https://gitlab.com/pine64-org/u-boot"
+arch="aarch64"
+license="GPL-2.0-or-later OFL-1.1 BSD-2-Clause BSD-3-Clause eCos-2.0 IBM-pibs
+	ISC LGPL-2.0-only LGPL-2.1-only X11"
+makedepends="$depends_dev bc dtc python3-dev swig bison flex openssl-dev arm-trusted-firmware-sun50i"
+options="!check"
+source="
+	$pkgname-$_commit.tar.gz::https://gitlab.com/pine64-org/u-boot/-/archive/$_commit/u-boot-$_commit.tar.gz
+	dram-speed.patch
+	"
+builddir="$srcdir"/u-boot-$_commit
+
+build() {
+	touch include/config.h
+	LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > include/timestamp_autogenerated.h
+	LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> include/timestamp_autogenerated.h
+
+	export BL31="/usr/share/arm-trusted-firmware-sun50i/bl31.bin"
+	export BUILD_DIR="$builddir"/build
+	mkdir -p "$BUILD_DIR"
+	make O="$BUILD_DIR" HOSTCC=gcc ARCH=arm pinephone_defconfig
+	make O="$BUILD_DIR" HOSTCC=gcc ARCH=arm all
+}
+
+package() {
+	cd "$builddir"/build
+	install -D -m644 "u-boot-sunxi-with-spl.bin" \
+		"$pkgdir"/usr/share/u-boot/pine64-pinephone/u-boot-sunxi-with-spl.bin
+}
+
+
+sha512sums="3fec7e60b04539ddab241920a8e691acf2695e049fa726f52de632b40828a6f9db51c4b260364bb41dad9878d771b6024d6733d8957abbcee805049e3905d933  u-boot-pinephone-ec643935990b517e96ba9676eb0093b9bec96189.tar.gz
+0331e05f9077eb4c8219b5fa804a8372a0ca20957cacfdff618d2045f64949581418aef4dfef2e87c31ca218c9ac22e20cf8021b679c5fa7cfb9f89876da02fa  dram-speed.patch"

temp/u-boot-pinephone/dram-speed.patch

@@ -0,0 +1,13 @@
+diff --git a/configs/pinephone_defconfig b/configs/pinephone_defconfig
+index f4b9f6adaa..ad5bff5132 100644
+--- a/configs/pinephone_defconfig
++++ b/configs/pinephone_defconfig
+@@ -5,7 +5,7 @@ CONFIG_SPL=y
+ CONFIG_IDENT_STRING=""
+ CONFIG_MACH_SUN50I=y
+ CONFIG_SUNXI_DRAM_LPDDR3_STOCK=y
+-CONFIG_DRAM_CLK=552
++CONFIG_DRAM_CLK=624
+ CONFIG_DRAM_ZQ=3881949
+ CONFIG_MMC_SUNXI_SLOT_EXTRA=2
+ # CONFIG_VIDEO_DE2 is not set