[XS] Change in coreboot[main]: soc/intel/xeon_sp/ebg/soc_xhci: Check if BAR is reachable

[Shuo Liu (Code Review)]

Attention is currently required from: Christian Walter, Johnny Lin, Jonathan Zhang, Patrick Rudolph, Tim Chu.

Shuo Liu has posted comments on this change by Patrick Rudolph. ( https://review.coreboot.org/c/coreboot/+/85809?usp=email )

Change subject: soc/intel/xeon_sp/ebg/soc_xhci: Check if BAR is reachable
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Patch Set 3: Code-Review+1

(1 comment)

File src/soc/intel/xeon_sp/ebg/soc_xhci.c:

https://review.coreboot.org/c/coreboot/+/85809/comment/ef3aef40_44ceb28d?usp... :
PS3, Line 21: 
When get_xhci_bar is called, the initial mapping is assumed to be mapped by FSP and not coreboot here, right?