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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

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