--- wikisrc/ports/evbarm/tegra.mdwn	2015/08/02 22:47:45	1.23
+++ wikisrc/ports/evbarm/tegra.mdwn	2015/11/11 14:56:35	1.28
@@ -34,12 +34,16 @@
    - TMP451 [[!template id=man name="titemp" section="4"]] temperature sensor (on I2C)
    - RF kill switch
    - Power button
+ - AS3722 power management unit
+
 
 # TODO
  - Analog audio output (I2S, Audio codec, APB DMA)
- - AS3722 power management unit
  - GPU (nouveau)
  - USB 3.0 [[!template id=man name="xhci" section="4"]] controller
+ - SPI controller
+ - PWM controller
+ - PCIe MSI support
 
 # Generating a boot script
 
@@ -51,6 +55,21 @@ bootm 0x90000000
 $ mkubootimage -A arm -C none -O netbsd -T script -a 0 -n "NetBSD/tegra boot" boot.txt boot.scr
 """]]
 
+# Getting U-Boot
+
+Jetson TK1 boards come with Linux4Tegra R19.x installed, which doesn't use U-Boot. The easiest way to get U-Boot is to upgrade to Linux4Tegra R21.x (Linux PC or VM required) following the [quick start guide](http://developer.download.nvidia.com/embedded/L4T/r21_Release_v4.0/l4t_quick_start_guide.txt).
+
+# Modesetting
+
+To be able to use the mode setting features of the Tegra DRM driver, you must use the xf86-video-modesetting driver. Put this in xorg.conf:
+
+[[!template  id=programlisting text="""
+Section "Device"
+    Identifier "DRM Modesetting"
+    Driver "modesetting"
+EndSection
+"""]]
+
 # Links
 
 - [NVIDIA Jetson TK1 development kit](https://developer.nvidia.com/jetson-tk1)