diff options
| author | Raul E Rangel <rrangel@chromium.org> | 2021-07-02 17:07:05 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2021-07-19 02:42:43 +0000 |
| commit | 67798cfd80baa0eba03d8598cab9d5f34ab4e756 (patch) | |
| tree | 03ee6a4b79a7cb0e262a7f55f85f402afbe28f8b /src/lib/Kconfig | |
| parent | 61f44127f0c06688343fdfa3f518a58b4efe170c (diff) | |
lib/prog_loaders: Add payload_preload
This method will allow the SoC code to start loading the payload before
it is required.
BUG=b:177909625
TEST=Boot guybrush and see read/decompress drop by 23 ms.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ifa8f30a0f4f931ece803c2e8e022e4d33d3fe581
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56051
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/lib/Kconfig')
| -rw-r--r-- | src/lib/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/lib/Kconfig b/src/lib/Kconfig index 239f613470..0f651b346a 100644 --- a/src/lib/Kconfig +++ b/src/lib/Kconfig @@ -98,3 +98,14 @@ config NO_CBFS_MCACHE the associated CAR/SRAM size. In that case every single CBFS file lookup must re-read the same CBFS directory entries from flash to find the respective file. + +config PAYLOAD_PRELOAD + bool + depends on COOP_MULTITASKING + help + On some systems with SPI DMA controllers, it is possible to preload + the payload while ramstage is executing. This can be selected by the + SoC to enable payload preloading. + + The SoC needs to define a payload_preload_cache region where the + raw payload can be placed. |