--- wikisrc/ports/evbarm/tegra.mdwn	2015/08/01 21:33:36	1.18
+++ wikisrc/ports/evbarm/tegra.mdwn	2015/09/02 18:31:56	1.25
@@ -36,12 +36,12 @@
    - Power button
 
 # TODO
- - eMMC support
- - SD/MMC UHS-I support (needs [[!template id=man name="sdmmc" section="4"]] changes)
- - I2S
- - Audio codec
+ - 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
 
 # Generating a boot script
 
@@ -53,6 +53,10 @@ 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).
+
 # Links
 
 - [NVIDIA Jetson TK1 development kit](https://developer.nvidia.com/jetson-tk1)