Change in coreboot[master]: mb/amd/bilby: Enable DP2 and DP3 enumeration

[Aamir Bohra (Code Review)]

Aamir Bohra has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/56755 )

Change subject: mb/amd/bilby: Enable DP2 and DP3 enumeration
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mb/amd/bilby: Enable DP2 and DP3 enumeration

DP2 and DP2 is muxed with USBC port. This implementation
configures mux for DP functioanlity.

TEST=Verify display over DP2 and DP3.

Signed-off-by: Aamir Bohra 
Change-Id: If0c8dfbb47175789bb27d4506c1e8b45c425c76a
Reviewed-on: http://gerrit-git.amd.com/c/embedded/ec/coreboot/+/507246
Tested-by: Abhishek Chaudhary 
Reviewed-by: Ritul Guru 
---
M src/mainboard/amd/bilby/devicetree.cb
1 file changed, 9 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/55/56755/1

diff --git a/src/mainboard/amd/bilby/devicetree.cb b/src/mainboard/amd/bilby/devicetree.cb
index 862d20f..2d55a44 100644
--- a/src/mainboard/amd/bilby/devicetree.cb
+++ b/src/mainboard/amd/bilby/devicetree.cb
@@ -92,6 +92,15 @@
    	.tx_res_tune = 0x01,
    }"

+	register "usb_pd_config_override[0]" = "{
+		.rfmux_override_en  = 1,
+		.rfmux_config = USB_PD_RFMUX_DP_X4_MODE,
+	}"
+	register "usb_pd_config_override[1]" = "{
+		.rfmux_override_en  = 1,
+		.rfmux_config = USB_PD_RFMUX_DP_X4_MODE,
+	}"
+
    # USB OC pin mapping; all ports share one OC pin
    register "usb_port_overcurrent_pin[0]" = "USB_OC_PIN_0"
    register "usb_port_overcurrent_pin[1]" = "USB_OC_PIN_0"