From 932726174d2aa17b0159ce262e248af45e7735ba Mon Sep 17 00:00:00 2001
From: GNU <dexterkidd@gmail.com>
Date: Thu, 2 Sep 2021 12:24:02 +0800
Subject: [PATCH] Created How to compile DevTerm CM3 Kernel (markdown)

---
 How-to-compile-DevTerm-CM3-Kernel.md | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 How-to-compile-DevTerm-CM3-Kernel.md

diff --git a/How-to-compile-DevTerm-CM3-Kernel.md b/How-to-compile-DevTerm-CM3-Kernel.md
new file mode 100644
index 0000000..5d169bb
--- /dev/null
+++ b/How-to-compile-DevTerm-CM3-Kernel.md
@@ -0,0 +1,26 @@
+## Get kernel
+1. git://github.com/raspberrypi/linux.git
+1. git checkout remotes/origin/rpi-4.19.y
+1. git apply devterm-4.19_0601.patch
+
+## Compile
+```
+KERNEL=kernel7 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2709_defconfig
+KERNEL=kernel7 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j3
+export INSTALL_MOD_PATH=./modules
+rm -rf $INSTALL_MOD_PATH
+make modules_install
+rm $INSTALL_MOD_PATH/lib/modules/*/build
+rm $INSTALL_MOD_PATH/lib/modules/*/source
+```
+
+## copy kernel to SD card
+$1 is the sd card location (mount point)
+```
+export INSTALL_MOD_PATH=./modules
+sudo cp -r $INSTALL_MOD_PATH/lib/modules $1/rootfs/lib/
+cat config_a >> $1/boot/config.txt
+cp arch/arm/boot/zImage $1/boot/kernel7.img
+cp arch/arm/boot/dts/bcm2710-rpi-cm3.dtb $1/boot/bcm2710-rpi-cm3.dtb
+cp arch/arm/boot/dts/overlays/*.dtbo $1/boot/overlays/
+```