diff --git a/ep_RPi4/README b/ep_RPi4/README
new file mode 100644
index 0000000..90bb314
--- /dev/null
+++ b/ep_RPi4/README
@@ -0,0 +1 @@
+root@192.168.1.168: root
diff --git a/ep_RPi4/RasPi-Si5351 b/ep_RPi4/RasPi-Si5351
new file mode 160000
index 0000000..e74dff3
--- /dev/null
+++ b/ep_RPi4/RasPi-Si5351
@@ -0,0 +1 @@
+Subproject commit e74dff3f2c69663604bee4d5781a478aa8b70e17
diff --git a/ep_RPi4/cmdline.txt b/ep_RPi4/cmdline.txt
new file mode 100755
index 0000000..155a546
--- /dev/null
+++ b/ep_RPi4/cmdline.txt
@@ -0,0 +1 @@
+root=/dev/mmcblk0p2 rootwait console=tty1 console=ttyAMA0,115200
diff --git a/ep_RPi4/config.txt b/ep_RPi4/config.txt
new file mode 100755
index 0000000..3afdf28
--- /dev/null
+++ b/ep_RPi4/config.txt
@@ -0,0 +1,39 @@
+# Please note that this is only a sample, we recommend you to change it to fit
+# your needs.
+# You should override this file using a post-build script.
+# See http://buildroot.org/manual.html#rootfs-custom
+# and http://elinux.org/RPiconfig for a description of config.txt syntax
+
+# We always use the same names, the real used variant is selected by
+# BR2_PACKAGE_RPI_FIRMWARE_{DEFAULT,X,CD} choice
+start_file=start.elf
+fixup_file=fixup.dat
+
+kernel=Image
+
+# To use an external initramfs file
+#initramfs rootfs.cpio.gz
+
+# Disable overscan assuming the display supports displaying the full resolution
+# If the text shown on the screen disappears off the edge, comment this out
+disable_overscan=1
+
+# How much memory in MB to assign to the GPU on Pi models having
+# 256, 512 or 1024 MB total memory
+gpu_mem_256=100
+gpu_mem_512=100
+gpu_mem_1024=100
+
+# fixes rpi (3B, 3B+, 3A+, 4B and Zero W) ttyAMA0 serial console
+dtoverlay=miniuart-bt
+
+# enable 64bits support
+arm_64bit=1
+
+dtparam=spi=on
+# dtoverlay=spi0-1cs
+
+dtoverlay=i2c1
+dtparam=i2c_arm=on
+dtparam=spi=on
+dtparam=i2c1=on, dtparam=i2c_arm_baudrate=100000