Adding Nvidia Jetson Nano (#2720)

* add Jetson Nano

* Update jetson-nano.conf

* Update targets.conf

* Add better description

* Adjust config - try to enable ZRAM

* Packaging patch not needed

* Extlinux was solved in other commit

* Move board to CSC for now

Co-authored-by: Igor Pečovnik <igorpecovnik@users.noreply.github.com>
Co-authored-by: Igor Pecovnik <igor.pecovnik@gmail.com>

config/boards/jetson-nano.csc

@@ -0,0 +1,10 @@
+# Nvidia Tegra X1 quad core 2G/4GB SoC 4 x USB3 HDMI & DP
+BOARD_NAME="Jetson Nano"
+BOARDFAMILY="jetson-nano"
+BOOTCONFIG="p3450-0000_defconfig"
+KERNEL_TARGET="current"
+FULL_DESKTOP="yes"
+BOOT_LOGO="desktop"
+BOOT_FDT_FILE="nvidia/tegra210-p3450-0000.dtb"
+SRC_EXTLINUX="yes"
+OFFSET=14

config/sources/families/jetson-nano.conf

@@ -0,0 +1,28 @@
+ARCH=arm64
+KERNEL_IMAGE_TYPE=Image
+
+BOOTSCRIPT=""
+BOOTBRANCH='tag:v2021.01'
+BOOTPATCHDIR="u-boot-arm-64"
+BOOTDIR='u-boot'
+UBOOT_TARGET_MAP=";;u-boot.bin"
+
+case $BRANCH in
+	current)
+		KERNELBRANCH="branch:linux-5.10.y"
+	;;
+esac
+
+CPUMIN=504000
+CPUMAX=2132000
+GOVERNOR=ondemand
+
+write_uboot_platform()
+    {
+	dd if=$1/u-boot.bin of=$2 bs=32k seek=1 status=noxfer > /dev/null 2>&1
+    }
+
+family_tweaks()
+{
+	cp -R $SRC/packages/blobs/jetson/firmware/* $SDCARD/lib/firmware/
+}

config/targets.conf

@@ -742,3 +742,11 @@ z28pro              current         focal       desktop                  stable
 # zeropi
 zeropi              current         buster      cli                      stable         yes
 zeropi              current         focal       cli                      stable         yes
+
+
+# Jetson Nano
+jetson-nano         current         buster      cli                      stable         yes
+jetson-nano         current         buster      desktop                  stable         yes            xfce    config_base   browsers,chat,desktop_tools,editors,email,internet,multimedia,office,programming,remote_desktop
+jetson-nano         current         focal       cli                      stable         yes
+jetson-nano         current         focal       desktop                  stable         yes            xfce    config_base   browsers,chat,desktop_tools,editors,email,internet,multimedia,office,programming,remote_desktop
+

packages/bsp/common/etc/initramfs-tools/hooks/jetson.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+# Copy xusb file to initrd
+#
+mkdir -p "${DESTDIR}"/lib/firmware/nvidia/tegra210
+xusbfile=/lib/firmware/nvidia/tegra210/xusb.bin
+
+if [ -f "${xusbfile}" ]; then
+	cp "${xusbfile}" "${DESTDIR}"/lib/firmware/nvidia/tegra210
+fi
+
+exit 0