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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/develop/spl.rst | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/doc/develop/spl.rst b/doc/develop/spl.rst index 1059b2fb9c0..aec7b562faa 100644 --- a/doc/develop/spl.rst +++ b/doc/develop/spl.rst @@ -83,7 +83,12 @@ U-Boot Phases U-Boot boots through the following phases: TPL - Very early init, as tiny as possible. This loads SPL. + Very early init, as tiny as possible. This loads SPL (or VPL if enabled). + +VPL + Optional verification step, which can select one of several SPL binaries, + if A/B verified boot is enabled. Implementation of the VPL logic is + work-in-progress. For now it just boots into SPL. SPL Secondary program loader. Sets up SDRAM and loads U-Boot proper. It may also |