Supported Hardware¶
The main hardware used is Intel Validation Platform (RVP) used in conjunction with a modular embedded control card (MECC) or when applicable the on-board EC.
The reference HW used to showcase EC FW open source takes advantage of the Modular Embedded controller card (MECC) specification, which defines both pin mapping and provides general guidelines to use different Embedded Controller Soc to the on-board EC through an add-on card. This allows to evaluate different EC vendors in an Intel RVP.
Note
Reworks are required on RVP to be able to control the RVP from MECC card. Refer to Platform design guide for details.
Board |
EC HW configuration |
Support |
|---|---|---|
Tigerlake U |
RVP + MEC152x card |
Deprecated |
Alderake S |
RVP (on-board MEC152x) |
Deprecated |
Alderake P |
RVP (on-board MEC152x) |
Deprecated |
Raptorlake S |
RVP (on-board MEC152x) |
Not supported |
Raptorlake P |
RVP (on-board MEC152x) |
Not supported |
Meteorlake S |
RVP (on-board MEC172x) |
Supported |
Meteorlake P |
RVP (on-board MEC152x) RVP + MEC172x card |
|
Lunarlake M |
RVP (on-board MEC172x) |
No plans to support |
Pantherlake U/P |
RVP (on board MEC172x) RVP + NPCX4 card RVP + ITE8002 card |
|
MECC card HW limitations¶
Most of the signals used by onboard EC are routed to MECC connector, however some signals may be missing on MECC compared to onboard EC. Refer to RVP schematics.
Note
Additionally, some MECC cards implement some variations on the MECC spec. However, this is being addressed by discussing with the EC vendors to adhere to the spec allowing more consistency.
As indicated above some Intel RVP features available are reduced when using MECC card. Refer to table below for guidance about what can be verified end-to-end.
Area |
Feature |
MTL-P + MEC172x |
MTL-S onboard |
MTL-P onboard |
|---|---|---|---|---|
MECC spec |
1.0 |
1.0 |
1.0 |
|
Power sequencing |
ACPI power (Sx) |
Yes |
Yes |
Yes |
Deep sleep (DSx) |
No |
Yes |
No |
|
Pseudo G3 |
No |
No |
Yes |
|
SAF |
No |
Yes |
Yes |
|
Human interface |
Volume buttons |
Yes |
Yes |
Yes |
Power button |
Yes |
Yes |
Yes |
|
Home button |
No |
No |
Yes |
|
Lid switch |
Yes |
No |
Yes |
|
Thermal |
CPU temperature reading |
Yes |
Yes |
Yes |
Fan control |
Yes |
Yes |
Yes |
|
PS2/ scan matrix |
PS2 keyboard |
Yes |
Yes |
Yes(2) |
PS2 mouse |
No (1) |
No |
Yes(2) |
|
Keyboard matrix |
Yes(3) |
Yes |
Yes |
|
Debug |
Port 80 |
Yes |
Yes |
Yes |
Serial port (UART) |
Yes(4) |
Yes |
Yes |
Note
(1) MEC172x HW revision 2 supports PS2 Keyboard on PortA and PS2 Mouse on PortB. Mouse has not been verified though.
Note
(2) There is no PS2 connector on the MTL-P board, instead there is 1x5 header that allow the connection.
Note
(3) Intel Meteorlake RVP keyboard matrix connector cannot be used, instead need to connect the keyboard matrix directly into the MECC card. MEC15xx/MEC17xx cards allow to use Fujitsu keyboard matrix.
Note
(4) Intel Meteorlake RVP UART connector cannot be used for EC serial logs. Use MECC USB instead.