mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-09-24 08:22:14 +00:00
33aca1c868
As the Renesas Reduced Pin Count Interface may be locked by TF-A, it is disabled by default[1]. When unlocked, TF-A passes a DT fragment to enable it, which is applied to the U-Boot DT[2]. Unlike the memory layout, the RPC-IF enablement is not propagated to subsequent software. Hence e.g. Linux cannot know if the RPC-IF is locked or not, and will lock-up when trying to access the RPC-IF when locked. Fix this by checking if the RPC-IF is enabled in the TF-A DT fragment, and setting the status of the RPC-IF device node in the target DT, if present, to "okay". Do this only when a "flash" subnode is found, to avoid errors in subsequent software when the RPC-IF is not intended to be used. Note that this requires the status of the RPC-IF node to be set to "disabled" in the target DT, just like in the U-Boot DT. [1] commit |
||
|---|---|---|
| .. | ||
| alt | ||
| blanche | ||
| condor | ||
| draak | ||
| eagle | ||
| ebisu | ||
| falcon | ||
| gose | ||
| grpeach | ||
| koelsch | ||
| lager | ||
| porter | ||
| r2dplus | ||
| rcar-common | ||
| salvator-x | ||
| silk | ||
| stout | ||
| ulcb | ||