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Diffstat (limited to 'docs/porting-guide.md')
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diff --git a/docs/porting-guide.md b/docs/porting-guide.md index 50d36ea2..c369844c 100644 --- a/docs/porting-guide.md +++ b/docs/porting-guide.md @@ -788,6 +788,17 @@ the entry point set by loader and also set the security state and SPSR which represents the entry point system state for BL2. +### Function : bl1_plat_prepare_exit() [optional] + + Argument : void + Return : void + +This function is called prior to exiting BL1 in response to the `RUN_IMAGE_SMC` +request raised by BL2. It should be used to perform platform specific clean up +or bookkeeping operations before transferring control to the next image. This +function runs with MMU disabled. + + 3.2 Boot Loader Stage 2 (BL2) ----------------------------- |