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| -rw-r--r-- | docs/libreboot.texi | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/libreboot.texi b/docs/libreboot.texi index 91c75444..d597c88a 100644 --- a/docs/libreboot.texi +++ b/docs/libreboot.texi @@ -2676,6 +2676,9 @@ However if you have mistakenly disabled developer mode and locked yourself out, @subsubsection How to program an SPI flash chip with the BeagleBone Black or Teensy 3.1 This document exists as a guide for reading from or writing to an SPI flash chip with the BeagleBone Black, using the @uref{http://flashrom.org/Flashrom,flashrom} software. A BeagleBone Black, rev. C was used when creating this guide, but earlier revisions may also work. +This document exists for the Debian system usually preinstalled when you buy the BeagleBone. At the time of writing this tutorial, that was Debian Wheezy, though it may have changed since then. For simplicity, you might prefer to use the screwdriver distro instead, which is based on openwrt and has SPI flashing and EHCI debugging enabled by default: See @uref{https://www.coreboot.org/BBB_screwdriver,https://www.coreboot.org/BBB_screwdriver} and +@uref{https://www.coreboot.org/BeagleBone_Black_-_screwdriver,https://www.coreboot.org/BeagleBone_Black_-_screwdriver} + There was no justification for a further section for the Teensy. Simply refer to @uref{https://www.flashrom.org/Teensy_3.1_SPI_%2B_LPC/FWH_Flasher#ISP_Usage,this page on flashrom.org} for information about how to set it up, and correlate that with the pins on the SPI flash chip as per other guides in the libreboot documentation for each board. At the time of writing, the teensy is tested for flashing on the ThinkPad X200, but it should work for other targets. here is a photo of the setup for Teensy: @uref{http://h5ai.swiftgeek.net/IMG_20160601_120855.jpg,http://h5ai.swiftgeek.net/IMG_20160601_120855.jpg}. Onto the BeagleBone black... |