User:NiteHawk

= Hardware =

A20

 * LeMaker Banana Pi

Current issues / problems encountered:
 * mainline kernel v4.1 quirk: "clocksource hstimer" messages flooding dmesg/syslog (summary: works as intended, as long as clock changes with cpufreq). patch available, fix scheduled for fixed in v4.2
 * U-Boot regression: The switch to driver model breaks U-Boot compilation when  is defined (reported to ML). - Patches available.

I'm currently staying with (and recommending) U-Boot release v2015.04 for the BPi. That version works well while enabling all the features I tend to use.

Cortex-M3

 * STM32 VL Discovery board

= Contributions =

linux-sunxi

 * Extend "fel spl" command to handle both parts of u-boot-sunxi-with-spl.bin: https://groups.google.com/forum/#!topic/linux-sunxi/1Hw2bzyhBc4

U-Boot patches
http://patchwork.ozlabs.org/project/uboot/list/?submitter=66075

If  is enabled, mainline U-Boot compilation currently (June 2015) might fail on armhf ("hardfloat") toolchains. This patch fixes that.

solved, fix applied to v2015.07

= External documentation (links / 'bookmarks') =

NEON
&rarr; ARM architecture, Advanced SIMD (NEON)

TrustZone

 * ARM architecture, Security extensions (TrustZone)
 * ARM Infocenter, TrustZone Technology
 * TrustZone Protection Controller Register Guide

sunxi NAS

 * Using the Allwinner A10/A20 as a home server

sunxi-tools / FEL boot
(snippets from U-Boot and linux-sunxi mailing lists)
 * |U-Boot| sunxi: Support uploading 'boot.scr' to RAM over USB OTG in FEL mode
 * |linux-sunxi| Re: sunxi-tools: extend fel utility to handle SPL + U-Boot binary