From ceaf611cd6e0f60f9090e2eb513aa13e17be6d02 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Valentin=20H=C4=83loiu?= <valentin.haloiu@gmail.com>
Date: Fri, 25 Oct 2024 21:17:35 +0100
Subject: [PATCH] Add `uboot-radxa-zero-3` package

---
 alarm/uboot-radxa-zero-3/PKGBUILD             | 67 +++++++++++++++++++
 alarm/uboot-radxa-zero-3/boot.txt             | 16 +++++
 alarm/uboot-radxa-zero-3/mkscr                |  9 +++
 .../uboot-radxa-zero-3.install                | 27 ++++++++
 4 files changed, 119 insertions(+)
 create mode 100644 alarm/uboot-radxa-zero-3/PKGBUILD
 create mode 100644 alarm/uboot-radxa-zero-3/boot.txt
 create mode 100755 alarm/uboot-radxa-zero-3/mkscr
 create mode 100644 alarm/uboot-radxa-zero-3/uboot-radxa-zero-3.install

diff --git a/alarm/uboot-radxa-zero-3/PKGBUILD b/alarm/uboot-radxa-zero-3/PKGBUILD
new file mode 100644
index 000000000..07ac9a3c9
--- /dev/null
+++ b/alarm/uboot-radxa-zero-3/PKGBUILD
@@ -0,0 +1,67 @@
+# U-Boot: Radxa Zero 3E/3W
+# Maintainer: Valentin Hăloiu <vially.ichb@gmail.com>
+
+buildarch=8
+
+pkgname=uboot-radxa-zero-3
+pkgver=2024.10
+pkgrel=1
+pkgdesc="U-Boot for Radxa Zero 3E/3W"
+arch=('aarch64')
+url='https://docs.u-boot.org/en/latest/'
+license=('GPL')
+backup=('boot/boot.txt' 'boot/boot.scr')
+makedepends=('bc' 'git' 'python' 'python-setuptools' 'python-pyelftools' 'swig' 'dtc' 'uboot-tools')
+install=${pkgname}.install
+source=("https://github.com/u-boot/u-boot/archive/refs/tags/v${pkgver}.tar.gz"
+        # TODO: Replace with a tagged release once available
+        "git+https://github.com/TrustedFirmware-A/trusted-firmware-a.git#commit=9fd9f1d024872b440e3906eded28037330b6f422"
+        # Source: https://github.com/radxa-repo/bsp/blob/fa92bfa/u-boot/latest/fork.conf#L119
+        'rk3566_ddr.bin::https://github.com/rockchip-linux/rkbin/raw/7c35e21a8529b3758d1f051d1a5dc62aae934b2b/bin/rk35/rk3566_ddr_1056MHz_v1.23.bin'
+        'boot.txt'
+        'mkscr')
+md5sums=('f1ef24a7d9907c0aeedde50938726598'
+         '739fe2caea8f905c15b6e9d5b0d65b64'
+         '9aef462eee359e8cf7ac1367dfd0f8d8'
+         '5612457aece4c5ca8a168f9066e0abdd'
+         '021623a04afd29ac3f368977140cfbfd')
+
+prepare() {
+  cd ${srcdir}/trusted-firmware-a
+  make realclean
+  make PLAT=rk3568 all
+}
+
+build() {
+  cd ${srcdir}/u-boot-${pkgver}
+
+  unset CLFAGS CXXFLAGS CPPFLAGS LDFLAGS
+
+  UBOOT_MAKE_EXTRA=()
+  UBOOT_MAKE_EXTRA+=("EXTRAVERSION=-${pkgrel}")
+  UBOOT_MAKE_EXTRA+=("BL31=${srcdir}/trusted-firmware-a/build/rk3568/release/bl31/bl31.elf")
+  # For some SoCs U-Boot sources lack support to initialize DRAM. In these
+  # cases, to get a fully functional image [...] use DDR binary provided by
+  # Rockchip rkbin repository as ROCKCHIP_TPL when building U-Boot.
+  #
+  # Source: https://docs.u-boot.org/en/v2024.10/board/rockchip/rockchip.html#tpl
+  UBOOT_MAKE_EXTRA+=("ROCKCHIP_TPL=${srcdir}/rk3566_ddr.bin")
+
+  make distclean
+  make radxa-zero-3-rk3566_defconfig
+  echo 'CONFIG_IDENT_STRING=" Arch Linux ARM"' >> .config
+  make "${UBOOT_MAKE_EXTRA[@]}"
+}
+
+package() {
+  cd u-boot-${pkgver}
+
+  mkdir -p "${pkgdir}/boot"
+
+  tools/mkimage -n rk3568 -T rksd -d "${srcdir}/rk3566_ddr.bin:./spl/u-boot-spl.bin" "${pkgdir}/boot/idbloader.img"
+
+  cp ./u-boot.itb "${pkgdir}/boot/u-boot.itb"
+
+  tools/mkimage -A arm -O linux -T script -C none -n "U-Boot boot script" -d ../boot.txt "${pkgdir}/boot/boot.scr"
+  cp ../{boot.txt,mkscr} "${pkgdir}"/boot
+}
diff --git a/alarm/uboot-radxa-zero-3/boot.txt b/alarm/uboot-radxa-zero-3/boot.txt
new file mode 100644
index 000000000..00bdea72f
--- /dev/null
+++ b/alarm/uboot-radxa-zero-3/boot.txt
@@ -0,0 +1,16 @@
+# After modifying, run ./mkscr
+
+if test -n ${distro_bootpart}; then setenv bootpart ${distro_bootpart}; else setenv bootpart 1; fi
+part uuid ${devtype} ${devnum}:${bootpart} uuid
+
+setenv bootargs console=ttyS2,${baudrate} root=PARTUUID=${uuid} rw rootwait
+
+if load ${devtype} ${devnum}:${bootpart} ${kernel_addr_r} /boot/Image; then
+  if load ${devtype} ${devnum}:${bootpart} ${fdt_addr_r} /boot/dtbs/${fdtfile}; then
+    if load ${devtype} ${devnum}:${bootpart} ${ramdisk_addr_r} /boot/initramfs-linux.img; then
+      booti ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r};
+    else
+      booti ${kernel_addr_r} - ${fdt_addr_r};
+    fi;
+  fi;
+fi
diff --git a/alarm/uboot-radxa-zero-3/mkscr b/alarm/uboot-radxa-zero-3/mkscr
new file mode 100755
index 000000000..272b6a7a5
--- /dev/null
+++ b/alarm/uboot-radxa-zero-3/mkscr
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+if [[ ! -x /usr/bin/mkimage ]]; then
+  echo "mkimage not found. Please install uboot-tools:"
+  echo "  pacman -S uboot-tools"
+  exit 1
+fi
+
+mkimage -A arm -O linux -T script -C none -n "U-Boot boot script" -d boot.txt boot.scr
diff --git a/alarm/uboot-radxa-zero-3/uboot-radxa-zero-3.install b/alarm/uboot-radxa-zero-3/uboot-radxa-zero-3.install
new file mode 100644
index 000000000..ae112e23c
--- /dev/null
+++ b/alarm/uboot-radxa-zero-3/uboot-radxa-zero-3.install
@@ -0,0 +1,27 @@
+flash_uboot() {
+  local device="/dev/mmcblk0"
+
+  echo "A new U-Boot version needs to be flashed onto $device."
+  echo "Do you want to do this now? [y|N]"
+  read -r shouldwe
+  if [[ $shouldwe =~ ^([yY][eE][sS]|[yY])$ ]]; then
+    dd if=/boot/idbloader.img of="$device" seek=64 conv=notrunc
+    dd if=/boot/u-boot.itb of="$device" seek=16384 conv=notrunc
+  else
+    echo "You can do this later by running:"
+    echo "# dd if=/boot/idbloader.img of=${device} seek=64 conv=notrunc"
+    echo "# dd if=/boot/u-boot.itb of=${device} seek=16384 conv=notrunc"
+    echo "# if you are using the emmc interface, take care to use the correct device identifier!"
+  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
+}