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authorSubrata Banik <subratabanik@google.com>2023-02-14 17:36:51 +0530
committerEric Lai <eric_lai@quanta.corp-partner.google.com>2023-02-16 00:39:26 +0000
commit45df1066ef2a9afe7e098410f0aa9a0440a6ea02 (patch)
tree49c6de84b8abb8e7039d02aaa5dc62975d5d6bae
parent57987b6e195620aaa61499d4786a30ce2e924cae (diff)
mb/google/rex: Mark unused USB ports as empty
This patch marks unused USB ports (USB2.0/TCSS) empty to avoid prompting wrong dmesg as below. ``` usb usb2-port3: Cannot enable. Maybe the USB cable is bad? ``` Mainboard variants to override the USB ports as per the target board design. TEST=Able to build and boot google/rex with all USB ports are working as expected. Change-Id: Ic3d21151a22f2318413f480f3386bf2dbf696307 Signed-off-by: Subrata Banik <subratabanik@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/73027 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
-rw-r--r--src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb b/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
index d31cafc83a..9a71e959c3 100644
--- a/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
+++ b/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb
@@ -11,6 +11,25 @@ chip soc/intel/meteorlake
# EC memory map range is 0x900-0x9ff
register "gen3_dec" = "0x00fc0901"
+ register "usb2_ports[0]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 0
+ register "usb2_ports[1]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 1
+ register "usb2_ports[2]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 2
+ register "usb2_ports[3]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 3
+ register "usb2_ports[4]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 4
+ register "usb2_ports[5]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 5
+ register "usb2_ports[6]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 6
+ register "usb2_ports[7]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 7
+ register "usb2_ports[8]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 8
+ register "usb2_ports[9]" = "USB2_PORT_EMPTY" # Disable USB2.0 Port 9
+
+ register "usb3_ports[0]" = "USB3_PORT_EMPTY" # Disable USB3.0 Port 0
+ register "usb3_ports[1]" = "USB3_PORT_EMPTY" # Disable USB3.0 Port 1
+
+ register "tcss_ports[0]" = "TCSS_PORT_EMPTY" # Disable USB-C Port 0
+ register "tcss_ports[1]" = "TCSS_PORT_EMPTY" # Disable USB-C Port 1
+ register "tcss_ports[2]" = "TCSS_PORT_EMPTY" # Disable USB-C Port 2
+ register "tcss_ports[3]" = "TCSS_PORT_EMPTY" # Disable USB-C Port 3
+
# S0ix enable
register "s0ix_enable" = "1"