v7.1

+ Odroid N2 | Add support for additional HDMI/monitor features, CEC, WOL and device tree overlays. All credits go to Meveric: https://forum.odroid.com/viewtopic.php?p=323888#p323888

boot_n2.ini

@@ -1,11 +1,31 @@
 ODROIDN2-UBOOT-CONFIG
 
+setenv board "odroidn2"
+
 # Serial console device: /dev/tty1 is appended automatically
 setenv condev "console=ttyS0,115200n8"
 
-# Auto-detection of monitor settings based on your screen information
+# Auto-detection of monitor settings based on your screen information: "false" or "true"
 setenv display_autodetect "true"
 
+# Toggle HDMI output: "false" or "true"
+setenv monitor_onoff "false"
+
+# Force SDR or HDR mode: "sdr", "hdr" or "auto"
+setenv sdrmode "auto"
+
+# Toggle CEC support: "false" or "true"
+setenv cec "true"
+
+# Toggle Wake-On-Lan support: 0=disable, 1=enable
+setenv enable_wol "0"
+
+# Device tree overlays
+# See /boot/overlays/odroidn2/ for available overlays, e.g.:
+# - hktft32: 3.2" TFT from HardKernel
+# - hktft35: 3.5" TFT from HardKernel
+#setenv overlays "spi0 i2c0 i2c1 uart0"
+
 # HDMI mode resolution configuration
 #    Symbol             | Resolution
 # ----------------------+-------------
@@ -88,6 +108,9 @@ setenv maxcpus "6"
 if test "${display_autodetect}" = "true"; then hdmitx edid; fi
 if test "${hdmimode}" = "custombuilt"; then setenv cmode "modeline=${modeline}"; fi
 
+# Apply CEC setting
+if test "${cec}" = "true"; then setenv cec_enable "hdmitx=cec3f"; fi
+
 # Apply VU7 settings
 if test "${disable_vu7}" = "false"; then setenv hid_quirks "usbhid.quirks=0x0eef:0x0005:0x0004"; fi
 
@@ -99,7 +122,7 @@ if test "${max_freq_a53}"; then setenv a53_freq "max_freq_a53=${max_freq_a53}";
 setenv bootlabel "DietPi (64-bit)"
 
 # Boot args
-setenv bootargs "root=UUID=e139ce78-9841-40fe-8823-96a304a09859 rootwait rw ${condev} ${amlogic} no_console_suspend fsck.repair=yes net.ifnames=0 elevator=noop hdmimode=${hdmimode} cvbsmode=576cvbs maxcpus=${maxcpus} voutmode=${voutmode} disablehpd=${disablehpd} ${hid_quirks} ${cmode} overscan=${overscan} cvbscable=${cvbscable} ${a73_freq] ${a53_freq}"
+setenv bootargs "root=UUID=e139ce78-9841-40fe-8823-96a304a09859 rootwait ro ${condev} ${amlogic} no_console_suspend fsck.repair=yes net.ifnames=0 elevator=noop hdmimode=${hdmimode} cvbsmode=576cvbs maxcpus=${maxcpus} voutmode=${voutmode} disablehpd=${disablehpd} enable_wol=${enable_wol} ${cec_enable} sdrmode=${sdrmode} consoleblank=0 logo=osd0,loaded monitor_onoff=${monitor_onoff} ${hid_quirks} ${cmode} overscan=${overscan} cvbscable=${cvbscable} ${a73_freq] ${a53_freq}"
 
 # Set load addresses
 setenv dtb_loadaddr "0x1000000"
@@ -112,8 +135,18 @@ fatload mmc ${devno}:1 ${k_addr} Image.gz
 fatload mmc ${devno}:1 ${dtb_loadaddr} meson64_odroid${variant}.dtb
 fatload mmc ${devno}:1 ${initrd_loadaddr} uInitrd
 fdt addr ${dtb_loadaddr}
-# unzip the kernel
+
+# Load device tree overlays
+if test "${overlays}"; then
+	setenv dtbo_addr_r "0x11000000"
+	fdt resize "16384"
+	for overlay in ${overlays}; do
+		fatload mmc ${devno}:1 ${dtbo_addr_r} overlays/${board}/${overlay}.dtbo && fdt apply ${dtbo_addr_r}
+	done
+fi
+
+# Unzip the kernel
 unzip ${k_addr} ${loadaddr}
 
-# boot
+# Boot
 booti ${loadaddr} ${initrd_loadaddr} ${dtb_loadaddr}