rocknix: add updateabl script

projects/ROCKNIX/packages/rocknix/sources/scripts/updateabl

@@ -0,0 +1,43 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2024-present ROCKNIX (https://github.com/ROCKNIX)
+#
+# This script will update the ABL on the internal UFS.
+
+set -euo pipefail
+
+case "$HW_DEVICE" in
+  SM8250|SM8550|SM8650)
+    ;;
+  *)
+    echo "This script is not compatible with this device!"
+    exit 1
+    ;;
+esac
+
+ELF="/usr/share/bootloader/rocknix_abl/abl_signed.elf"
+
+ABL_A="/dev/disk/by-partlabel/abl_a"
+ABL_B="/dev/disk/by-partlabel/abl_b"
+
+# ---- Sanity checks ----
+if [ ! -b "${ABL_A}" ] || [ ! -b "${ABL_B}" ]; then
+  echo "Error: ABL partitions not found"
+  exit 1
+fi
+
+# ---- Get sector size ----
+SS="$(blockdev --getss "${ABL_A}")"
+if [ -z "${SS}" ]; then
+  echo "Error: failed to get sector size"
+  exit 1
+fi
+
+# ---- Flash ----
+echo "Updating ABL partitions..."
+dd if="${ELF}" of="${ABL_A}" bs="${SS}" conv=fsync,notrunc status=none
+dd if="${ELF}" of="${ABL_B}" bs="${SS}" conv=fsync,notrunc status=none
+
+sync
+
+echo "ABL update completed successfully."