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Welcome to SpacemiT OpenSBI wiki!

This wiki page is dedicated for collecting information about mainline efforts of SpacemiT SoC OpenSBI support.

Table of Contents Communication Resources Branch Management Upstream Status K1 SoC K3 SoC Boards Spacemit K1 Dev Boards Spacemit K3 Dev Boards

Communication Resources

Join IRC channel at "#spacemit" of Libera.chat
Join spacemit@lists.linux.dev mailing list for discussion
- send subscription to spacemit+subscribe@lists.linux.dev if want to participate
- check archive at https://lore.kernel.org/spacemit/
OpenSBI mailing list: opensbi@lists.infradead.org
- check archive at https://lore.kernel.org/opensbi/

The two branches below will accept patches which sent to OpenSBI git tree, and eventually included into upstream OpenSBI.

fixes: For collecting critical bug fixes
for-next: For accepting new features
- Note: it will be forced pushed regularly!

The branch starting with 'k1/' or 'k3/' prefix are used for individual feature or testing only, it's not a stable or permanent branch.

Component	Submitted	Status	Link	Accept	Owner	Comments
Phase One
Platform support	09/25,2025	Merged	v3,09/25,2025	v1.8	Xianbin Zhu
SBI HSM extension	09/25,2025	Merged	v3,09/25,2025	v1.8	Xianbin Zhu
Timer	-	N/A	Built-in	-	-	Supported by default in OpenSBI
IPI	-	N/A	Built-in	-	-	Supported by default in OpenSBI
Console (UART)	-	N/A	Built-in	-	-	Supported by default in OpenSBI
I2C	04/19,2026	Merged	v1,04/19,2026	v1.9	Aurelien Jarno
Reset	04/19,2026	Merged	v1,04/19,2026	v1.9	Aurelien Jarno
Phase Two
PMU extension	m/d	N/A	x	N/A	-
SUSPEND extension	m/d	N/A	x	N/A	-
CPPC extension	m/d	N/A	x	N/A	-
Firmware (FW_DYNAMIC)	m/d	N/A	x	N/A	-

Component	Submitted	Status	Link	Accept	Owner
Phase One
Platform support	m/d	WIP	x	N/A	Xianbin Zhu
SBI HSM extension	m/d	WIP	x	N/A	Xianbin Zhu
Timer	m/d	N/A	x	N/A	-
IPI	m/d	N/A	x	N/A	-
Console (UART)	m/d	N/A	x	N/A	-
Reset	m/d	N/A	x	N/A	-
Phase Two
PMU extension	m/d	N/A	x	N/A	-
SUSPEND extension	m/d	N/A	x	N/A	-
CPPC extension	m/d	N/A	x	N/A	-
Firmware (FW_DYNAMIC)	m/d	N/A	x	N/A	-

People own different boards, so let's list here

Boards	Owner
SpacemiT K3 Pico-ITX
SpacemiT K3 Com260