u-boot.git/include/scmi_protocols.h, branch v2025.10

clk: scmi: add compatibility with clock protocol 2.0

2025-06-11T07:42:55+00:00

Since clock protocol 2.0, SCMI specification add an option field
"clock_enable_delay" to CLOCK_ATTRIBUTES command.

scmi_read_resp_from_smt() will return an error ("Buffer too small") as
the message length coming from the SCMI server is not the same as expected.

So implement a condition to SCMI clock protocol version to change the
length of the expected message.

Signed-off-by: Valentin Caron 
Signed-off-by: Patrice Chotard 
Cc: Lukasz Majewski 
Cc: Sean Anderson 
Reviewed-by: Patrick Delaunay 
Reviewed-by: Patrice Chotard

scmi_protocols: update struct scmi_base_discover_list_protocols_out

2025-05-03T19:55:32+00:00

@protocols is an array of protocol identifiers that are implemented,
excluding the Base protocol. Four protocol identifiers are packed into
each array element. The number of elements of @protocols is specified by
callee-side.

Signed-off-by: Ye Li 
Signed-off-by: Alice Guo

clk: scmi: check the clock state/parent/rate control permissions

2025-05-03T19:55:32+00:00

Clock driver based on SCMI clock management protocol in Linux checks
clock state, parent and rate control permissions. To be consistent with
the kernel driver, add this check here. CLOCK_GET_PERMISSIONS is from
ARM System Control and Management Interface Platform Design Document 3.2.

When using common clock framework (CCF), use the clock signal ID to get
the clock registered by clk_register() in scmi_clk_probe(), and then
obatin the struct clk_scmi variable with container_of().

Signed-off-by: Alice Guo 
Signed-off-by: Ye Li 
Reviewed-by: Peng Fan

clk: scmi: add the command CLOCK_PARENT_SET

2025-05-03T19:55:32+00:00

This patch adds the command CLOCK_PARENT_SET that can be used to set the
parent of a clock. ARM SCMI Version 3.2 supports to change the parent of
a clock device.

Signed-off-by: Peng Fan 
Signed-off-by: Alice Guo 
Reviewed-by: Ye Li 
Reviewed-by: Marek Vasut

scmi_protocols: add SCMI Performance domain management protocol message IDs

2025-05-03T19:55:32+00:00

SCMI Performance domain management protocol is intended for performance
management of groups of devices or APs that run in the same performance
domain. The functionality provided by the callee-side can be used by
passing the corresponding message_id.

Signed-off-by: Peng Fan 
Signed-off-by: Alice Guo 
Reviewed-by: Ye Li 
Reviewed-by: Marek Vasut

scmi_protocols: add SCMI misc protocol protocol_id and message_id for getting the ROM passover data

2025-05-03T19:55:32+00:00

SCMI misc protocol is intended for miscellaneous functions which are
device specific and are usually defined to access bit fields. It is i.MX
specific. This patch adds SCMI misc protocol protocol_id and message_id
for getting the ROM passover data.

Signed-off-by: Peng Fan 
Signed-off-by: Alice Guo 
Reviewed-by: Ye Li 
Reviewed-by: Marek Vasut

pinctrl: nxp: add a pin controller driver based on SCMI pin control protocol

2025-05-03T19:55:32+00:00

This patch provides a pinctrl driver based on SCMI pin control protocol.
Currently, only the PINCTRL_CONFIG_SET command is implemented.

Signed-off-by: Ranjani Vaidyanathan 
Signed-off-by: Peng Fan 
Signed-off-by: Alice Guo 
Reviewed-by: Ye Li

firmware: scmi: add power domain protocol support

2023-10-24T21:05:24+00:00

In this patch, added are helper functions to directly manipulate
SCMI power domain management protocol. DM compliant power domain
driver will be implemented on top of those interfaces in a succeeding
patch.

Signed-off-by: AKASHI Takahiro

firmware: scmi: implement SCMI base protocol

2023-10-13T20:59:23+00:00

SCMI base protocol is mandatory according to the SCMI specification.

With this patch, SCMI base protocol can be accessed via SCMI transport
layers. All the commands, except SCMI_BASE_NOTIFY_ERRORS, are supported.
This is because U-Boot doesn't support interrupts and the current transport
layers are not able to handle asynchronous messages properly.

Signed-off-by: AKASHI Takahiro 
Reviewed-by: Simon Glass 
Reviewed-by: Etienne Carriere

clk: scmi: register scmi clocks with CCF

2022-03-02T22:42:06+00:00

Implements SCMI APIs to retrieve the number exposed SCMI clocks using
SCMI_PROTOCOL_ATTRIBUTES messages and the names of the clocks using
SCMI_CLOCK_ATTRIBUTES messages.

This change updates sandbox SCMI clock test driver to manage these
2 new message IDs.

Cc: Lukasz Majewski 
Cc: Sean Anderson 
Cc: Clement Leger 
Cc: Patrick Delaunay 
Reviewed-by: Patrick Delaunay 
Signed-off-by: Gabriel Fernandez 
Signed-off-by: Etienne Carriere