mh
/
lc-coreboot
1
0
Fork 0
Code Releases 28 Wiki Activity
Browse Source

x230: README: improve rename how-to-update to how-to-flash and improve internal docs

pull/35/head
Martin Kepplinger 6 years ago
parent
4d153b36b8
commit
893a2c45f9
1 changed files with 7 additions and 11 deletions
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. +7
    -11
      x230/README.md

+ 7
- 11
x230/README.md View File

@ -19,7 +19,7 @@ That's the preferred way to use coreboot. The git revision we use is always incl
## table of contents ## table of contents
* [TL;DR](#tl-dr) * [TL;DR](#tl-dr)
* [Flashing for the first time](#flashing-for-the-first-time) * [Flashing for the first time](#flashing-for-the-first-time)
* [How to update](#how-to-update)
* [How to flash](#how-to-flash)
* [Why does this work](#why-does-this-work) * [Why does this work](#why-does-this-work)
## TL;DR ## TL;DR
@ -149,27 +149,23 @@ the following included script:
That's it. Keep the backup safe. That's it. Keep the backup safe.
## How to update
When __upgrading__ to a new release, only the "upper" 4MB chip has to be written.
Download the latest release image we provide and flash it:
## How to flash
When __upgrading__ to a new release, only the "upper" 4MB chip has to be written
and any of the following examples are possible. Otherwise you cannot use
"internal" flashing and please read [flashing for the first time](#flashing-for-the-first-time).
### Example: internal ### Example: internal
CAUTION: THIS IS NOT ENCOURAGED
* Only for _updating_! You have to have your 8MB chip flashed externally using * Only for _updating_! You have to have your 8MB chip flashed externally using
our `flashrom_rpi_bottom_unlock.sh` script (`ifdtool -u`) before this, once our `flashrom_rpi_bottom_unlock.sh` script (`ifdtool -u`) before this, once
* very convenient: just install flashrom on the X230 and software-update,
but according to the
* very convenient: just install flashrom on your X230 but according to the
[flashrom manpage](https://manpages.debian.org/stretch/flashrom/flashrom.8.en.html) [flashrom manpage](https://manpages.debian.org/stretch/flashrom/flashrom.8.en.html)
this is very dangerous! this is very dangerous!
* Boot Linux with the `iomem=relaxed` boot parameter (for example set in /etc/default/grub) * Boot Linux with the `iomem=relaxed` boot parameter (for example set in /etc/default/grub)
* download the latest release tarball (4MB "top" BIOS image is included) and extract it * download the latest release tarball (4MB "top" BIOS image is included) and extract it
* run `prepare_internal_flashing.sh` for generating all necessary files and printing all instructions
* run the flashrom command you got from the script. That's it.
* run `prepare_internal_flashing.sh` for generating all necessary files and instructions
### Example: Raspberry Pi 3 ### Example: Raspberry Pi 3
Here you'll flash externally, using a "Pomona 5250 8-pin SOIC test clip". You'll find Here you'll flash externally, using a "Pomona 5250 8-pin SOIC test clip". You'll find
one easily. This is how the X230's SPI connection looks on both chips: one easily. This is how the X230's SPI connection looks on both chips:


Write Preview
Loading…
Cancel
Save