Change in coreboot[master]: mb/google/volteer: Add support for passive USB-C daughterboard

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/42905 )

Change subject: mb/google/volteer: Add support for passive USB-C daughterboard
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mb/google/volteer: Add support for passive USB-C daughterboard

The USB-C SBU and HSL orientation configuration depends on the USB
daughterboard used on the system. This patch adds an additional
configuration for supporting passive USB daughterboards using "probe"
directives to select the appropriate configuration at runtime.

BUG=b:158673460
TEST=verified active USB DBs enumerate at USB3 speeds in linux

Signed-off-by: Caveh Jalali 
Change-Id: Ia4bd97de8f974531f97469a5e47ecf4d948beca9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42905
Tested-by: build bot (Jenkins) 
Reviewed-by: Tim Wawrzynczak 
---
M src/mainboard/google/volteer/variants/volteer/overridetree.cb
1 file changed, 14 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Tim Wawrzynczak: Looks good to me, approved

diff --git a/src/mainboard/google/volteer/variants/volteer/overridetree.cb b/src/mainboard/google/volteer/variants/volteer/overridetree.cb
index c32b80e..577f7c8 100644
--- a/src/mainboard/google/volteer/variants/volteer/overridetree.cb
+++ b/src/mainboard/google/volteer/variants/volteer/overridetree.cb
@@ -156,7 +156,20 @@
    					register "usb3_port_number" = "2"
    					# SBU is fixed, HSL follows CC
    					register "sbu_orientation" = "TYPEC_ORIENTATION_NORMAL"
-						device generic 1 on end
+						device generic 1 on
+							probe DB_USB USB4_GEN2
+							probe DB_USB USB3_ACTIVE
+							probe DB_USB USB4_GEN3
+							probe DB_USB USB3_NO_A
+						end
+					end
+					chip drivers/intel/pmc_mux/con
+						register "usb2_port_number" = "4"
+						register "usb3_port_number" = "2"
+						# SBU & HSL follow CC
+						device generic 1 on
+							probe DB_USB USB3_PASSIVE
+						end
    				end
    			end
    		end