diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/mainboard/purism/librem_mini.md | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/Documentation/mainboard/purism/librem_mini.md b/Documentation/mainboard/purism/librem_mini.md index e098a24778..f8ee00d6d5 100644 --- a/Documentation/mainboard/purism/librem_mini.md +++ b/Documentation/mainboard/purism/librem_mini.md @@ -1,16 +1,19 @@ -# Purism Librem Mini +# Purism Librem Mini (v1, v2) This page describes how to run coreboot on the [Purism Librem Mini]. ```eval_rst +------------------+--------------------------------------------------+ -| CPU | Intel Core i7-8565U/8665U | +| CPU | Intel Core i7-8565U/8665U (v1) | +| | Intel Core i7-10510U (v2) | +------------------+--------------------------------------------------+ -| PCH | Whiskey Lake / Cannon Point LP | +| PCH | Whiskey Lake / Cannon Point LP (v1) | +| | Comet Lake LP Premium (Comet Lake-U) (v2) | +------------------+--------------------------------------------------+ | Super I/O, EC | ITE IT8528E | +------------------+--------------------------------------------------+ -| Coprocessor | Intel Management Engine (CSME 12.x) | +| Coprocessor | Intel Management Engine (CSME 12.x) (v1) | +| | Intel Management Engine (CSME 14.x) (v2) | +------------------+--------------------------------------------------+ ``` @@ -34,9 +37,9 @@ only the BIOS region is being modified). +-----------------+---------------------------------+---------------------+ ``` -FSP-M and FSP-S are obtained after splitting the Coffee Lake FSP binary (done -automatically by the coreboot build system and included into the image) from -the `3rdparty/fsp` submodule. +FSP-M and FSP-S are obtained after splitting the FSP binary (done automatically +by the coreboot build system and included into the image; Coffee Lake for v1, +Comet Lake for v2) from the `3rdparty/fsp` submodule. Microcode updates are automatically included into the coreboot image by the build system from the `3rdparty/intel-microcode` submodule. Official Purism release @@ -50,12 +53,14 @@ the [purism-blobs] repository. ## Intel Management Engine -The Librem Mini uses version 12.x of the Intel Management Engine (ME) / -Converged Security Engine (CSE). The ME/CSE is disabled using the High -Assurance Platform (HAP) bit, which puts the ME into a disabled state +The Librem Mini uses version 12.x (v1) or 14.x (v2) of the Intel Management +Engine (ME) / Converged Security Engine (CSE). The ME/CSE is disabled using +the High Assurance Platform (HAP) bit, which puts the ME into a disabled state after platform bring-up (BUP) and disables all PCI/HECI interfaces. This can be verified via the coreboot cbmem utility: -`sudo ./cbmem -1 | grep 'ME:'` + + `sudo ./cbmem -1 | grep 'ME:'` + provided coreboot has been modified to output the ME status even when the PCI device is not visible/active (as it is in Purism's release builds). @@ -64,8 +69,9 @@ the PCI device is not visible/active (as it is in Purism's release builds). ### Internal programming The main SPI flash can be accessed using [flashrom]. The first version -supporting the chipset is flashrom v1.2. Firmware an be easily flashed -with internal programmer (either BIOS region or full image). +supporting the chipset is flashrom v1.2 (v1.2-107-gb1f858f or later needed +for the Mini v2). Firmware an be easily flashed with internal programmer +(either BIOS region or full image). ### External programming @@ -100,17 +106,17 @@ desoldering it from the mainboard. ## Working * 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 + (no libgfxinit support yet) + * SeaBIOS (1.14), Tianocore (CorebootPayloadPkg), Heads (Purism downstream) payloads * Ethernet, m.2 2230 Wi-Fi * System firmware updates via flashrom * PCIe NVMe * m.2 and SATA III * Audio via front 3.5mm jack, HDMI, and DisplayPort * SMBus (reading SPD from DIMMs) - * Initialization with CFL FSP 2.0 + * Initialization with FSP 2.0 (CFL for v1, CML for v2) * S3 Suspend/Resume - * Booting PureOS 9.x, Debian 10.x, Qubes 4.0.3, Linux Mint 19.3, Windows 10 2004 + * Booting PureOS 10.x, Debian 11.x, Qubes 4.1.0-alpha1, Linux Mint 20, Windows 10 2004 ## Not working / untested |