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| author | Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com> | 2020-01-22 21:23:20 -0700 |
|---|---|---|
| committer | Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com> | 2020-01-23 03:01:22 -0700 |
| commit | 31ce893ec29197c51e3814648ad0dd2acf4a31a7 (patch) | |
| tree | 674ca96e89d33d6267cf2755a015acb39cfff536 /docs/plat | |
| parent | 4d9f825a5616e15975abc0e8ffef4fd8afe09634 (diff) | |
| download | platform_external_arm-trusted-firmware-31ce893ec29197c51e3814648ad0dd2acf4a31a7.tar.gz platform_external_arm-trusted-firmware-31ce893ec29197c51e3814648ad0dd2acf4a31a7.tar.bz2 platform_external_arm-trusted-firmware-31ce893ec29197c51e3814648ad0dd2acf4a31a7.zip | |
xilinx: versal: PLM to ATF handover
Parse the parameter structure the PLM populates, to populate the
bl32 and bl33 image structures.
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Change-Id: I317072d1086f6cc6f90883c1b8b6d086ff57b443
Diffstat (limited to 'docs/plat')
| -rw-r--r-- | docs/plat/xilinx-versal.rst | 8 |
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. |