Add dtedit command to edit currently booted DT

ayufan-rock64 · Jul 2, 2018 · 0807f0c · 0807f0c
1 parent 9f65cc3
commit 0807f0c
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/package/root/usr/local/sbin/dtedit b/package/root/usr/local/sbin/dtedit
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+if [[ $# -ne 0 ]] && [[ $# -ne 1 ]]; then
+  echo "usage: $0 [kernel-version]"
+  exit 1
+fi
+
+VERSION=${VERSION:-$(uname -r)}
+
+set -xe
+pushd /boot
+
+if [[ ! -e "dts-${VERSION}.tmp" ]]; then
+  dtc "dtb-${VERSION}" > "dts-${VERSION}.tmp"
+  mv "dts-${VERSION}.tmp" "dts-${VERSION}"
+fi
+
+editor "dts-${VERSION}"
+
+dtc "dts-${VERSION}" > "dtb-${VERSION}.new"
+mv "dtb-${VERSION}.new" "dtb-${VERSION}"
+echo Done.