From 6219731d55e0d5310732dcf093979be856bc9aa9 Mon Sep 17 00:00:00 2001
From: cuu <gnubsd@me.com>
Date: Sat, 1 Aug 2026 21:56:49 +0800
Subject: [PATCH] add patch readme for  uConsole_CM4_v3.1_64bit.img

---
 Code/patch/cm4/20260414/README.md | 71 +++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 Code/patch/cm4/20260414/README.md

diff --git a/Code/patch/cm4/20260414/README.md b/Code/patch/cm4/20260414/README.md
new file mode 100644
index 0000000..a488439
--- /dev/null
+++ b/Code/patch/cm4/20260414/README.md
@@ -0,0 +1,71 @@
+# Kernel for uConsole_CM4_v3.1_64bit.img 
+Kernel source tree:  
+`https://github.com/cuu/ClockworkPi-linux`   branch rpi-6.12.y  
+Commit hash:  
+`03436f4117533693d608b10eb4b3965987230b68`  
+
+# How to compile the kernel
+
+```
+export ARCH=arm64
+export CROSS_COMPILE=aarch64-linux-gnu-
+export DTS_SUBDIR=broadcom
+export IMAGE=Image.gz
+export KERNEL=kernel8
+
+
+make O=build bcm2711_defconfig
+
+make O=build menuconfig
+
+make O=build -j 2 $IMAGE headers modules dtbs V=1
+
+mkdir -p install/boot/overlays
+make O=build INSTALL_MOD_PATH=install modules_install
+cp build/arch/$ARCH/boot/dts/$DTS_SUBDIR/*.dtb install/boot/
+cp build/arch/$ARCH/boot/dts/overlays/*.dtb* install/boot/overlays/
+cp arch/${ARCH}/boot/dts/overlays/README install/boot/overlays/
+cp build/arch/$ARCH/boot/$IMAGE install/boot/kernel8.img
+
+rm -rf install/lib
+mv build/install/lib/ install
+
+rm -rf install.tar.gz
+tar zcvf install.tar.gz install
+
+```
+
+## How to package kernel files to a deb file  
+
+Use the files produced above 
+
+```
+VERSION=$(make O=build kernelrelease | sed -n '2p')
+DEB_FOLDER=uconsole-kernel-cm4-rpi_$VERSION
+
+
+mkdir -p $DEB_FOLDER/boot/firmware/overlays
+mkdir -p $DEB_FOLDER/usr/src
+
+make O=build INSTALL_MOD_PATH=install modules_install
+make O=build INSTALL_HDR_PATH=install headers_install
+
+cp build/arch/$ARCH/boot/dts/$DTS_SUBDIR/*.dtb $DEB_FOLDER/boot/firmware
+cp build/arch/$ARCH/boot/dts/overlays/*.dtb* $DEB_FOLDER/boot/firmware/overlays/
+cp arch/${ARCH}/boot/dts/overlays/README $DEB_FOLDER/boot/firmware/overlays/
+cp build/arch/$ARCH/boot/$IMAGE $DEB_FOLDER/boot/firmware/kernel8.img
+
+rm -rf $DEB_FOLDER/lib
+
+cp -rf build/install/lib/ $DEB_FOLDER
+
+cp build/.config  $DEB_FOLDER/boot/config-${VERSION}
+cp build/System.map $DEB_FOLDER/boot/System.map-${VERSION}
+cp build/arch/$ARCH/boot/$IMAGE $DEB_FOLDER/boot/vmlinuz-${VERSION}
+
+cp -rf build/install/include/  $DEB_FOLDER/usr/src/linux-headers-${VERSION}
+
+rm -rf ${DEB_FOLDER}.tar.gz
+tar zcvf ${DEB_FOLDER}.tar.gz  ${DEB_FOLDER}
+```
+