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docs/librem_mini: update CPU, known issues section 

Both 8565U and 8665U CPUs are used in the Librem Mini.

SATA issue updated based on addition of HSIO PHY tuning params
and resulting changes.

Change-Id: I33a093ccfea077402e1b3651f9ca5d6d8a2818f8
Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46983
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
This commit is contained in:
Matt DeVillier 2020-10-29 12:54:07 -05:00 committed by Michael Niewöhner
parent 8aa087ece6
commit 184c794086
1 changed files with 7 additions and 6 deletions
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13
Documentation/mainboard/purism/librem_mini.md
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@ -4,7 +4,7 @@ This page describes how to run coreboot on the [Purism Librem Mini].
```eval_rst
+------------------+--------------------------------------------------+
| CPU | Intel Core i7-8565U |
| CPU | Intel Core i7-8565U/8665U |
+------------------+--------------------------------------------------+
| PCH | Whiskey Lake / Cannon Point LP |
+------------------+--------------------------------------------------+
@ -91,14 +91,15 @@ desoldering it from the mainboard.
## Known issues
* SeaBIOS can be finicky with detecting USB devices
* Booting can sometimes hang when a bootsplash image is used with SeaBIOS
and VGA option ROM display init, related to display mode changing
* Issues with some SATA devices have been mitigated by limiting the SATA speed to 3Gbps
until the correct HSIO PHY settings can be determined.
* Mode switching with VGA option ROM display init can be slow and sometimes hangs
* Some SATA devices on the 2.5" interface can have issues operating at 6 Gbps,
despite the HSIO PHY settings being set optimally via experimentation. These devices
may show errors in dmesg and drop down to 3 Gbps, but should not fail to boot.
The same issue is present on the AMI vendor firmware.
## Working
* External displays via HDMI/DislpayPort with VGA option ROM or FSP/GOP init
* External displays via HDMI/DisplayPort with VGA option ROM or FSP/GOP init
(no libgfxinit support yet)
* SeaBIOS (1.13.x), Tianocore (CorebootPayloadpkg), Heads (Purism downstream) payloads
* Ethernet, m.2 2230 Wi-Fi