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device/xhci: Add xHCI utility to enumerate capabilities

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This will allow enumerating an xHCI controller to allow dynamically
generating the ACPI device nodes.

BUG=b:154756391
TEST=Boot trembyle and see capabilities printed on console
xHCI Supported Protocol:
  Major: 0x2, Minor: 0x0, Protocol: 'USB '
  Port Offset: 1, Port Count: 2
xHCI Supported Protocol:
  Major: 0x3, Minor: 0x10, Protocol: 'USB '
  Port Offset: 3, Port Count: 1

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I3065c3fffad01b5378a55cfe904f971079b13d0f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41899
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Raul E Rangel
2020-05-29 17:16:20 -06:00
committed by Patrick Georgi
parent 26a0c66c13
commit a5b7ddf940
4 changed files with 150 additions and 0 deletions
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5
src/device/Kconfig
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@@ -811,4 +811,9 @@ config RESOURCE_ALLOCATOR_V4
ranges for allocating resources. This allows allocation of resources
above 4G boundary as well.
config XHCI_UTILS
def_bool n
help
Provides xHCI utility functions.
endmenu