firmware: arm_scmi: imx: Add documentation for MISC_BOARD_INFO

System Manager Firmware supports getting board information, add
documentation for this MISC_BOARD_INFO command.

Also extends the SYSLOG response to include NOT_SUPPORTED.

Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20250904-sm-misc-api-v1-v4-1-0bf10eaabdf1@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

diff --git a/drivers/firmware/arm_scmi/vendors/imx/imx95.rst b/drivers/firmware/arm_scmi/vendors/imx/imx95.rst
index 4e246a78a042a79eb81be35632079c7626bbbe57..741f4eace3506cdcabb15e8f2350e8891ede51e6 100644 (file)
--- a/drivers/firmware/arm_scmi/vendors/imx/imx95.rst
+++ b/drivers/firmware/arm_scmi/vendors/imx/imx95.rst
@@ -1660,6 +1660,7 @@ protocol_id: 0x84
 |Name                |Description                                              |
 +--------------------+---------------------------------------------------------+
 |int32 status        |SUCCESS: system log return                               |
+|                    |NOT_SUPPORTED: system log not available                  |
 +--------------------+---------------------------------------------------------+
 |uint32 numLogflags  |Descriptor for the log data returned by this call.       |
 |                    |Bits[31:20] Number of remaining log words.               |
@@ -1670,6 +1671,30 @@ protocol_id: 0x84
 |uint32 syslog[N]    |Log data array, N is defined in bits[11:0] of numLogflags|
 +--------------------+---------------------------------------------------------+
 
+MISC_BOARD_INFO
+~~~~~~~~~~~~~~~
+
+message_id: 0xE
+protocol_id: 0x84
+
++--------------------+---------------------------------------------------------+
+|Return values                                                                 |
++--------------------+---------------------------------------------------------+
+|Name                |Description                                              |
++--------------------+---------------------------------------------------------+
+|int32 status        |SUCCESS: config name return                              |
+|                    |NOT_SUPPORTED: name not available                        |
++--------------------+---------------------------------------------------------+
+|uint32 attributes   |Board-specific attributes reserved for future expansion  |
+|                    |without breaking backwards compatibility. The firmware   |
+|                    |sets the value to 0                                      |
++--------------------+---------------------------------------------------------+
+|uint8 boardname[16] |Board name. NULL terminated ASCII string, up to 16 bytes |
+|                    |in length. This is System Manager(SM) firmware-exported  |
+|                    |board-name and may not align with the board name in the  |
+|                    |device tree.                                             |
++--------------------+---------------------------------------------------------+
+
 NEGOTIATE_PROTOCOL_VERSION
 ~~~~~~~~~~~~~~~~~~~~~~~~~~