From f7608a7818421cd84114cec7185825d166bb5403 Mon Sep 17 00:00:00 2001
From: GNU <dexterkidd@gmail.com>
Date: Sun, 10 Jul 2022 11:27:15 +0800
Subject: [PATCH] Created Compile Devterm CM4 kernel (markdown)

---
 Compile-Devterm-CM4-kernel.md | 53 +++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Compile-Devterm-CM4-kernel.md

diff --git a/Compile-Devterm-CM4-kernel.md b/Compile-Devterm-CM4-kernel.md
new file mode 100644
index 0000000..6579964
--- /dev/null
+++ b/Compile-Devterm-CM4-kernel.md
@@ -0,0 +1,53 @@
+# Download patch
+```
+git clone https://github.com/clockworkpi/DevTerm.git
+```
+
+# Download kernel and patch it
+```
+git clone https://github.com/raspberrypi/linux
+git checkout 3a33f11c48572b9dd0fecac164b3990fc9234da8
+cp ~/DevTerm/Code/patch/cm4/cm4_kernel_0704.patch .
+git apply cm4_kernel_0704.patch
+
+#Strongly recommend to use gcc 8.4.0 as the cross compiler
+KERNEL=kernel7l make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2711_defconfig
+KERNEL=kernel7l make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j1
+INSTALL_MOD_PATH=./modules make modules_install
+rm modules/lib/modules/*/build
+rm modules/lib/modules/*/source
+
+mkdir output
+mkdir output
+mkdir output/boot
+mkdir output/lib/modules -p
+mkdir output/boot/overlays
+
+cp -rf modules/lib/modules/5.10.17-v7l+ output/lib/modules/
+cp arch/arm/boot/dts/overlays/*.dtbo output/boot/overlays/
+cp arch/arm/boot/dts/bcm2711-rpi-cm4.dtb output/boot/
+cp arch/arm/boot/zImage output/boot/kernel7l.img
+
+```
+
+output is the folder contains all kernel stuff  
+
+# config.txt
+```
+disable_overscan=1
+dtparam=audio=on
+[pi4]
+dtoverlay=vc4-fkms-v3d
+max_framebuffers=2
+
+[all]
+dtoverlay=dwc2,dr_mode=host
+dtoverlay=vc4-kms-v3d-pi4,cma-384
+dtoverlay=devterm-pmu
+dtoverlay=devterm-panel
+dtoverlay=devterm-misc
+dtoverlay=audremap,pins_12_13
+
+dtparam=spi=on
+gpio=10=ip,np
+```