Signed-off-by: Leah Rowe <leah@libreboot.org>

This was only tested on the iGPU model, though a dGPU model does exist.
The vendor firmware used a 16KiB gbe.bin, which was modified with a
random MAC address as well as shrinking it to 8KiB. As with the E6400,
GRUB doesn't like the way the EC implements the keyboard controller and
thus GRUB payloads are disabled at this time. Suspend does not currently
work, and this is believed to be due to the EC controlling the DRAM
reset gate which is required to prevent DRAM from being reset on resume.

With some tweaks, the e6400-flash-unlock utility also works on this
system, though both flash chips can be accessed through removal of only
the keyboard.

Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>

The same ROM images that you flash on Intel GPU variants,
are now flashed on Nvidia models. The same ROM will work
on both. If an Intel GPU variant is present, libgfxinit
is used, and the VGA ROM is used if an Nvidia GPU variant;
however, release ROMs will scrub the nvidia option ROM,
so release ROMs will only work on Intel GPUs unless you
run the blobutil inject command.

I decided to no longer have this under WIP, but to put
it in master. The issue with it pertains to video drivers,
which is not Libreboot's problem.

Nouveau crashes under Linux, so use "nomodeset" if it does.
The "nv" drivers in BSD systems work very well.

The nvidia model of E6400 isn't recommended for other
reasons, namely: poor thermal cooling (thermal pad on
the GPU) and that Nvidia GPU doesn't get very good
performance on any libre drivers anyway. The Intel GPU
variant is better, in terms of power efficiency and
software support; the intel variant also works with
native graphics initialisation in coreboot.

This board port already only enables SeaBIOS, which will
simply execute the VGA ROM. Blobutil already supports
reading the config, detecting that a VGA ROM is needed,
because that part of the WIP E6400 branch was already
merged in lbmk master.

Signed-off-by: Leah Rowe <leah@libreboot.org>

Intel GPU!

The AMD ones will be tested, but assume Intel-only for now.

Signed-off-by: Leah Rowe <leah@libreboot.org>

Very nice ivybridge board that supports ECC RAM.
NOTE: I couldn't get onboard graphics working yet, but
this was confirmed working with a graphics card (in my
case nvidia quadra k420) booted in text mode on the SeaBIOS
payload. The GRUB payload also works, when loaded from SeaBIOS.
Therefore, this is a SeaBIOS-only board (as far as first payload
is concerned), but you can pick GRUB from the menu.

You could make it "GRUB-only" in practise by setting SeaBIOS
boot order to only load GRUB, and disable the SeaBIOS menu.
We refer to this as "SeaGRUB".

I've made lbmk use biosutilities and uefiextract, to
get at the SMSC SCH5545 Environmental Control (EC) firmware.
This firmware is needed for fan control. This is automatically
downloaded and extracted, from Dell UEFI firmware updates.

As with other blobs such as Intel ME, this firmware is then
scrubbed by the release build scripts. The blobutil "inject"
script can be used to re-insert it.

Of note: there is no fixed offset, but no other blobs to
be inserted in CBFS either, so the offset when re-inserting
on release ROMs should still be the same, and thus the ROM
checksums should match, when running blobutil inject.

Signed-off-by: Leah Rowe <leah@libreboot.org>

Another ivybridge platform, added in coreboot recently.

Signed-off-by: Leah Rowe <leah@libreboot.org>

this fixes blobutil not downloading me.bin for
the target, which was renamed to t440plibremrc

Signed-off-by: Leah Rowe <leah@libreboot.org>

Still on Gerrit. ME downloader failed with HP update file, so let's just
use Lenovo's instead. Both contain identical ME8_5M_Production.bin files.

Tested and working:
* Native raminit with both DIMMs
* Libgfxinit textmode and framebuffer on both DisplayPorts and VGA
* External USB2 and USB3 ports: they all work
* USB 3.0 SuperSpeed (rear, 4 ports)
* Ethernet
* Mini-PCIe WLAN
* SATA: 2.5" SSD and optical drive bay
* SeaBIOS and GRUB (boot to linux)
* PS/2 keyboard and mouse
* S3 suspend and resume, wake using USB keyboard
* Headphone output, line out, internal speaker
* Wake on LAN
* Rebooting
* CMOS options & nvramcui

Untested:
* Line in, mic input
* MXM graphics card
* EHCI debug

Not working:
* Mini-PCIe USB: I couldn't get it working on vendor BIOS either, so
  maybe it just isn't present
* PS/2 keyboard wake from S3
* mSATA (I have no mSATA drives)

Tested with Johan Ehnberg (johan@molnix.com)

The following is tested and confirmed working:
- backlight control
- touchpad
- USB (external, smart card, fingerprint, bluetooth, webcam, WWAN)
- touchpad
- Wi-Fi
- 2,5" SATA
- USB 3.0
- SD card
- Memory: 2+2 (matched or unmatched), 8+2, 8+8
- internal flashing from libreboot
- SeaBIOS and GRUB payloads
- Boots Devuan and Ubuntu

Untested:
- ExpressCard
- DVD
- dock
- external displays
- eSATA
- trackpoint (not present on this aftermarket keyboard)

For Nvidia GPU models of Dell Latitude E6400