add sys-boot/u-boot

sys-boot/u-boot/u-boot-2021.04.ebuild

@@ -0,0 +1,64 @@
+# Copyright 2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+MY_PV=$(ver_rs 2 -)
+MY_P="${PN}-v${MY_PV}"
+
+DESCRIPTION="U-boot for the Pinebook Pro"
+HOMEPAGE="https://www.denx.de/wiki/U-Boot"
+SRC_URI="https://gitlab.denx.de/${PN}/${PN}/-/archive/v${MY_PV}/${PN}-v${MY_PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="-* arm64"
+
+UBOOT_ALL_DEFCONFIGS=( pinebook-pro-rk3399 )
+IUSE="${UBOOT_ALL_DEFCONFIGS[@]/#/uboot_defconfigs_}"
+REQUIRED_USE="^^ ( ${IUSE} )"
+
+DEPEND="
+	sys-apps/dtc
+	sys-firmware/trusted-firmware-a[tfa_platforms_rk3399]
+"
+RDEPEND="${DEPEND}"
+BDEPEND=""
+S="${WORKDIR}/${MY_P}"
+PATCHES=(
+	"${FILESDIR}/0002-Correct-boot-order-to-be-USB-SD-eMMC.patch"
+	"${FILESDIR}/0003-Enable-the-power-LED-during-early-startup.patch"
+)
+
+uboot_get_defconfig() {
+        local cfg
+        for cfg in "${UBOOT_ALL_DEFCONFIGS[@]}"; do
+                if use "uboot_defconfigs_${cfg}"; then
+                        echo ${cfg}_defconfig
+                        return 0
+                fi
+        done
+
+        die "no uboot_defconfigs_ set"
+}
+
+
+src_configure() {
+	emake $(uboot_get_defconfig)
+}
+
+src_compile() {
+	emake BL31=/usr/share/trusted-firmware-a/rk3399/bl31.elf
+}
+
+src_install() {
+	insinto /usr/share/u-boot
+	doins idbloader.img
+	doins u-boot.itb
+}
+
+pkg_postinst() {
+	elog "To install U-boot:"
+	elog "Determine your device, then"
+	elog "if=/usr/share/u-boot/idbloader.img of=/dev/... seek=64 conv=notrunc"
+	elog "if=/usr/share/u-boot/u-boot.itb of=/dev/... seek=16384 conv=notrunc"
+}