soc/amd/picasso: don't apply unconfigured USB2 PHY tune parameters

Since FSP pre-populates the UPD struct with the non-zero default values,
coreboot shouldn't set them to zero in the case that they aren't
configured in the board's devicetree. Since all parameters being zero is
a valid case, this patch adds another devicetree option that applying
the devicetree settings for the USB2 PHY tuning depends on being set.

BUG=b:161923068

Change-Id: I66e5811ce64298b0644d2881420634a8ce1379d7
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43781
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions