diff --git a/docs/porting-guide.rst b/docs/porting-guide.rst index 5462cc1ec..603d44aa2 100644 --- a/docs/porting-guide.rst +++ b/docs/porting-guide.rst @@ -952,9 +952,9 @@ Function : plat\_disable\_acp() Argument : void Return : void -This api allows a platform to disable the Accelerator Coherency Port (if +This API allows a platform to disable the Accelerator Coherency Port (if present) during a cluster power down sequence. The default weak implementation -doesn't do anything. Since this api is called during the power down sequence, +doesn't do anything. Since this API is called during the power down sequence, it has restrictions for stack usage and it can use the registers x0 - x17 as scratch registers. It should preserve the value in x18 register as it is used by the caller to store the return address. diff --git a/docs/user-guide.rst b/docs/user-guide.rst index da260264a..2b90bece8 100644 --- a/docs/user-guide.rst +++ b/docs/user-guide.rst @@ -485,8 +485,8 @@ Common build options - ``LOAD_IMAGE_V2``: Boolean option to enable support for new version (v2) of image loading, which provides more flexibility and scalability around what images are loaded and executed during boot. Default is 0. - Note: ``TRUSTED_BOARD_BOOT`` is currently only supported for AArch64 when - ``LOAD_IMAGE_V2`` is enabled. + + Note: this flag must be enabled for AArch32 builds. - ``LOG_LEVEL``: Chooses the log level, which controls the amount of console log output compiled into the build. This should be one of the following: