Initial commit

.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto

PKGBUILD

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+# U-Boot: NanoPi R2S/R2C
+
+buildarch=8
+
+pkgname=uboot-nanopi-r2s
+pkgver=2021.10
+pkgrel=1
+pkgdesc="U-Boot for NanoPi R2S/R2C"
+arch=('aarch64')
+url='http://www.denx.de/wiki/U-Boot/WebHome'
+license=('GPL')
+backup=('boot/extlinux/extlinux.conf')
+makedepends=('bc' 'git' 'python' 'swig' 'dtc')
+install=${pkgname}.install
+source=("ftp://ftp.denx.de/pub/u-boot/u-boot-${pkgver}.tar.bz2"
+        "https://github.com/ARM-software/arm-trusted-firmware/archive/v2.5.tar.gz"
+		"extlinux.conf")
+md5sums=('f1392080facf59dd2c34096a5fd95d4c'
+         'a3c01d2a73d5171e3f1c0737ff5321d9'
+		 'faf2b85206cb66c31f7c97da7b2b281d')
+
+prepare() {
+	cd ${srcdir}/arm-trusted-firmware-2.5
+	make PLAT=rk3328
+
+	cd ${srcdir}/u-boot-${pkgver}
+
+	cd ${srcdir}/u-boot-${pkgver}/configs
+	echo 'CONFIG_IDENT_STRING=" Arch Linux ARM"' >> nanopi-r2s-rk3328_defconfig
+}
+
+build() {
+	cd ${srcdir}/u-boot-${pkgver}
+
+	unset CLFAGS CXXFLAGS CPPFLAGS LDFLAGS
+	export BL31=../arm-trusted-firmware-2.5/build/rk3328/release/bl31/bl31.elf
+
+	make nanopi-r2s-rk3328_defconfig
+	make
+}
+
+package() {
+	cd u-boot-${pkgver}
+
+	mkdir -p "${pkgdir}/boot/extlinux"
+
+	cp ./u-boot-rockchip.bin   "${pkgdir}/boot/u-boot-rockchip.bin"
+	cp ${srcdir}/extlinux.conf "${pkgdir}/boot/extlinux/extlinux.conf"
+}

extlinux.conf

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+timeout 3
+
+default Arch
+
+label Arch
+    linux /Image
+    fdt /dtbs/rockchip/rk3328-nanopi-r2s.dtb
+    append console=ttyS2,1500000 root=/dev/mmcblk0p1 rw rootwait earlycon=uart8250,mmio32,0xff130000
+    initrd /initramfs-linux.img

uboot-nanopi-r2s.install

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+flash_uboot() {
+	echo "A new U-Boot version needs to be flashed onto /dev/mmcblk0."
+	echo "Do you want to do this now? [y|N]"
+	read -r shouldwe
+	if [[ $shouldwe =~ ^([yY][eE][sS]|[yY])$ ]]; then
+		dd if=/boot/u-boot-rockchip.bin of=/dev/mmcblk0 seek=64 conv=notrunc
+	else
+		echo "You can do this later by running:"
+		echo "# dd if=/boot/u-boot-rockchip.bin of=/dev/mmcblk0 seek=64 conv=notrunc"
+		echo "# if you are using the emmc interface, take care to use the correct device identifier! (probably mmcblk1)"
+	fi
+}
+
+## arg 1:	the new package version
+post_install() {
+	flash_uboot
+}
+
+## arg 1:	the new package version
+## arg 2:	the old package version
+post_upgrade() {
+	flash_uboot
+}