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authorAlexei Fedorov <Alexei.Fedorov@arm.com>2020-01-23 17:16:07 +0000
committerTrustedFirmware Code Review <review@review.trustedfirmware.org>2020-01-23 17:16:07 +0000
commit208ebe7c915880dd7cf9ac16caba9ed6abc02ac8 (patch)
tree62b4056b5a499a837cea0cca878cd9d9532e0743 /docs
parent744a1d6e06492ef0a744fe0e0ffae8d05e2dad58 (diff)
parent31ce893ec29197c51e3814648ad0dd2acf4a31a7 (diff)
downloadarm-trusted-firmware-208ebe7c915880dd7cf9ac16caba9ed6abc02ac8.tar.gz
Merge "xilinx: versal: PLM to ATF handover" into integration
Diffstat (limited to 'docs')
-rw-r--r--docs/plat/xilinx-versal.rst8
1 files changed, 8 insertions, 0 deletions
diff --git a/docs/plat/xilinx-versal.rst b/docs/plat/xilinx-versal.rst
index 95c89a8b2..57a363bc9 100644
--- a/docs/plat/xilinx-versal.rst
+++ b/docs/plat/xilinx-versal.rst
@@ -33,3 +33,11 @@ Xilinx Versal platform specific build options
* `VERSAL_PLATFORM`: Select the platform. Options:
- `versal_virt` : Versal Virtual platform
+
+# PLM->TF-A Parameter Passing
+------------------------------
+The PLM populates a data structure with image information for the TF-A. The TF-A
+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.