github
/
arm-trusted-firmware
mirror of https://github.com/ARM-software/arm-trusted-firmware.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

docs(versal): update SMC convention 

Updated documentation for SMC SiP calling conventions for IPI,
PM, and SiP Service queries.

Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
Change-Id: Ic232551bb09152124da5226673c88e1a34a384c4
pull/2000/merge
Prasad Kummari 9 months ago
parent
93163d988e
commit
d8dc1cfa6f
1 changed files with 43 additions and 0 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 43
      docs/plat/xilinx-versal.rst

43
docs/plat/xilinx-versal.rst
View File

@ -76,3 +76,46 @@ uses that data to hand off to the loaded images. The address of the handoff
data structure is passed in the ```PMC_GLOBAL_GLOB_GEN_STORAGE4``` register.
The register is free to be used by other software once the TF-A is bringing up
further firmware images.
Reference DEN0028E SMC calling convention
------------------------------------------
Allocated subranges of Function Identifier to SIP services
----------------------------------------------------------
+-----------------------+-------------------------------------------------------+
| SMC Function | Identifier Service type |
+-----------------------+-------------------------------------------------------+
| 0xC2000000-0xC200FFFF | Fast SMC64 SiP Service Calls as per SMCCC Section 6.1 |
+-----------------------+-------------------------------------------------------+
IPI SMC call ranges
-------------------
+---------------------------+-----------------------------------------------------------+
| SMC Function Identifier | Service type |
+---------------------------+-----------------------------------------------------------+
| 0xc2001000-0xc2001FFF | Fast SMC64 SiP Service call range used for AMD-Xilinx IPI |
+---------------------------+-----------------------------------------------------------+
PM SMC call ranges
------------------
+---------------------------+---------------------------------------------------------------------------+
| SMC Function Identifier | Service type |
+---------------------------+---------------------------------------------------------------------------+
| 0xc2000000-0xc2000FFF | Fast SMC64 SiP Service call range used for AMD-Xilinx Platform Management |
+---------------------------+---------------------------------------------------------------------------+
SMC function IDs for SiP Service queries
----------------------------------------
+--------------+--------------+--------------+
| Service | Call UID | Revision |
+--------------+--------------+--------------+
| SiP Service | 0x8200_FF01 | 0x8200_FF03 |
+--------------+--------------+--------------+
Call UID Query – Returns a unique identifier of the service provider.
Revision Query – Returns revision details of the service implementor.

Write Preview
Loading…
Cancel
Save