diff --git a/etc/release-confs/make.conf b/etc/release-confs/make.conf
new file mode 100644
--- /dev/null
+++ b/etc/release-confs/make.conf
@@ -0,0 +1,2 @@
+WITHOUT_DEBUG=YES
+MK_PROFILE=no
diff --git a/etc/release-confs/src.conf b/etc/release-confs/src.conf
new file mode 100644
--- /dev/null
+++ b/etc/release-confs/src.conf
@@ -0,0 +1,6 @@
+WITHOUT_DEBUG_FILES=1
+WITHOUT_KERNEL_SYMBOLS=yes
+WITHOUT_TESTS=yes
+WITHOUT_PROFILE=yes
+WITHOUT_LLVM_ASSERTIONS=yes
+WITH_MALLOC_PRODUCTION=yes
diff --git a/rk3328.sh b/rk3328.sh
new file mode 100755
--- /dev/null
+++ b/rk3328.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+#
+# Here we build our own config for RK3328 SoC, skipping most of the generic stuff.
+# Run `sudo ./rk3328.sh` during active development,  or `sudo ./rk3328.sh NOCLEAN=NO` to build from scratch.
+#
+EXTRA=$1
+if [ "$EXTRA" == "clean" ]; then
+    EXTRA=""
+else
+    EXTRA="NOCLEAN=YES"
+fi
+
+KERNEL_BIN=/usr/obj/usr/home/marcusmae/glazomer/freebsd/src/arm64.aarch64/sys/RK3328/kernel.bin
+
+make buildkernel TARGET_ARCH=aarch64 KERNCONF=RK3328 $EXTRA && \
+gzip -f -9 $KERNEL_BIN && \
+sudo -i -u marcusmae scp $KERNEL_BIN.gz m17:/home/marcusmae/forge/docker-tftpd/tftpboot/
+
diff --git a/sys/arm64/arm64/nexus.c b/sys/arm64/arm64/nexus.c
--- a/sys/arm64/arm64/nexus.c
+++ b/sys/arm64/arm64/nexus.c
@@ -52,6 +52,7 @@
 #include <machine/bus.h>
 #include <sys/rman.h>
 #include <sys/interrupt.h>
+#include <sys/sysctl.h>
 
 #include <machine/machdep.h>
 #include <machine/vmparam.h>
diff --git a/sys/arm64/conf/RK3328 b/sys/arm64/conf/RK3328
new file mode 100644
--- /dev/null
+++ b/sys/arm64/conf/RK3328
@@ -0,0 +1,27 @@
+#
+# ROCKCHIP -- Rockchip kernel configuration file for FreeBSD/arm64
+#
+# For more information on this file, please read the config(5) manual page,
+# and/or the handbook section on Kernel Configuration Files:
+#
+#    https://docs.freebsd.org/en/books/handbook/kernelconfig/#kernelconfig-config
+#
+# The handbook is also available locally in /usr/share/doc/handbook
+# if you've installed the doc distribution, otherwise always see the
+# FreeBSD World Wide Web server (https://www.FreeBSD.org/) for the
+# latest information.
+#
+# An exhaustive list of options and more detailed explanations of the
+# device lines is also present in the ../../conf/NOTES and NOTES files.
+# If you are in doubt as to the purpose or necessity of a line, check first
+# in NOTES.
+#
+
+#NO_UNIVERSE
+
+cpu		ARM64
+ident		ROCKCHIP
+
+include		"std.arm64"
+include		"std.dev"
+include		"std.rk3328"
diff --git a/sys/arm64/conf/std.rk3328 b/sys/arm64/conf/std.rk3328
new file mode 100644
--- /dev/null
+++ b/sys/arm64/conf/std.rk3328
@@ -0,0 +1,61 @@
+#
+# Rockchip SoC support
+#
+
+# SoC support
+options 	SOC_ROCKCHIP_RK3328
+#options 	SOC_ROCKCHIP_RK3399
+#options 	SOC_ROCKCHIP_RK3568
+
+# GPIO / PINCTRL
+device		dwgpio			# Synopsys DesignWare APB GPIO Controller
+device		rk_gpio			# RockChip GPIO Controller
+device		rk_pinctrl		# RockChip Pinmux Controller
+
+# Combo PHY support
+device		rk_combphy		# Naneng Combo PHY
+
+# I2C
+device		rk_i2c			# RockChip I2C controller
+device		fan53555		# Fairchild Semi FAN53555/SYR82x Regulator
+
+# Power management controllers
+device		rk805			# RockChip RK805 PMIC
+#device		rk817			# RockChip RK817 PMIC
+#device		syr827			# Silergy SYR827 PMIC
+#device		tcs4525			# TCS 4525 PMIC
+
+# SPI
+device		rk_spi			# RockChip SPI controller
+
+# PWM
+device		rk_pwm
+
+# Serial (COM) ports
+device		uart_snps
+
+# Ethernet NICs
+device		dwc_rk			# Rockchip Designware
+#device		eqos			# Synopsys Designware Ethernet QoS controller
+
+# IO Domains
+device		rk_iodomain
+
+# USB support
+device		rk_usb2phy		# Rockchip USB2PHY
+device		rk_typec_phy		# Rockchip TypeC PHY
+device		dwc3			# Synopsys DWC controller
+device		rk_dwc3			# Rockchip DWC3 controller
+
+# MMC/SD/SDIO Card slot support
+#device		sdhci
+#device		dwmmc
+#device		rk_dwmmc
+#device		rk_emmcphy
+
+options 	FDT
+device     md_root_mem
+options 	MD_ROOT_MEM		# Enable use of initrd as MD root
+
+# DTBs
+makeoptions	MODULES_EXTRA+="dtb/rockchip"
diff --git a/sys/arm64/ofw/ofw_initrd.c b/sys/arm64/ofw/ofw_initrd.c
new file mode 100644
--- /dev/null
+++ b/sys/arm64/ofw/ofw_initrd.c
@@ -0,0 +1,98 @@
+/*-
+ * Copyright (C) 2018 Breno Leitao
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+#include <sys/module.h>
+#include <sys/types.h>
+#include <sys/proc.h>
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+
+#include <machine/bus.h>
+#include <machine/elf.h>
+#include <machine/param.h>
+#include <machine/vmparam.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include "opt_md.h"
+
+extern u_char *mfs_root;
+extern int mfs_root_size;
+
+static void ofw_initrd_probe_and_attach(void *junk);
+
+SYSINIT(ofw_initrd_probe_and_attach, SI_SUB_KMEM, SI_ORDER_ANY,
+    ofw_initrd_probe_and_attach, NULL);
+
+static void
+ofw_initrd_probe_and_attach(void *junk)
+{
+	phandle_t chosen;
+	vm_paddr_t start, end;
+	pcell_t cell[2];
+	ssize_t size;
+	u_char *taste;
+
+	chosen = OF_finddevice("/chosen");
+	if (chosen <= 0)
+		return;
+
+	if (!OF_hasprop(chosen, "linux,initrd-start") ||
+	    !OF_hasprop(chosen, "linux,initrd-end"))
+		return;
+
+	size = OF_getencprop(chosen, "linux,initrd-start", cell, sizeof(cell));
+	if (size == 4)
+		start = cell[0];
+	else if (size == 8)
+		start = (uint64_t)cell[0] << 32 | cell[1];
+	else {
+		printf("ofw_initrd: Wrong linux,initrd-start size\n");
+		return;
+	}
+
+	size = OF_getencprop(chosen, "linux,initrd-end", cell, sizeof(cell));
+	if (size == 4)
+		end = cell[0];
+	else if (size == 8)
+		end = (uint64_t)cell[0] << 32 | cell[1];
+	else{
+		printf("ofw_initrd: Wrong linux,initrd-end size\n");
+		return;
+	}
+
+	if (end - start > 0) {
+		taste = (u_char *) PHYS_TO_DMAP(start);
+		mfs_root = taste;
+		mfs_root_size = end - start;
+		printf("ofw_initrd: initrd loaded at 0x%08lx-0x%08lx\n",
+			start, end);
+	}
+}
diff --git a/sys/conf/files.arm64 b/sys/conf/files.arm64
--- a/sys/conf/files.arm64
+++ b/sys/conf/files.arm64
@@ -338,6 +338,7 @@
 dev/ofw/ofw_cpu.c				optional fdt
 dev/ofw/ofw_pci.c				optional fdt pci
 dev/ofw/ofw_pcib.c				optional fdt pci
+arm64/ofw/ofw_initrd.c				optional fdt md_root_mem
 
 dev/pci/controller/pci_n1sdp.c			optional pci_n1sdp acpi
 dev/pci/pci_host_generic.c			optional pci