diff options
| author | John Zhao <john.zhao@intel.com> | 2021-01-06 20:52:16 -0800 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2021-01-08 22:01:26 +0000 |
| commit | 9c1a335fbcbadb01a89c1dc59dae6094e0d13bc0 (patch) | |
| tree | 3b72556a2fbd96d631c06a8f2d244b290bba6c66 /src | |
| parent | e862a004d7b6716df44556a23bf7ed9339e1ac6b (diff) | |
mb/google/volteer: Configure Delbin USB2 ports for Type C
Two USB2 ports 4 and 9 are assigned to type C connectors on Delbin
board. This update configures these USB2 ports for Type C which will
allow USB2 port reset message upstream from PCH to CPU to recover a USB3
device that downgraded to USB2 to upgrade back to USB3.
BUG=b:176575892
TEST=Booted to kernel on Delbin board and verified usb2 port reset
message enable bits through pch xhci_mmio_base + R_XHCI_MEM_U2PRM_U2PRDE
where the offset register R_XHCI_MEM_U2PRM_U2PRDE has value 0x92f4.
Validated various USB3 devices enumeration.
Signed-off-by: John Zhao <john.zhao@intel.com>
Change-Id: Idb3ce949e1ecf3adc7615e0af79a38a0cc9be18f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49202
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/volteer/variants/delbin/overridetree.cb | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/google/volteer/variants/delbin/overridetree.cb b/src/mainboard/google/volteer/variants/delbin/overridetree.cb index 577404737b..aa06d09e8a 100644 --- a/src/mainboard/google/volteer/variants/delbin/overridetree.cb +++ b/src/mainboard/google/volteer/variants/delbin/overridetree.cb @@ -51,7 +51,9 @@ chip soc/intel/tigerlake .tx_emp_enable = USB2_PRE_EMP_ON, .pre_emp_bias = USB2_BIAS_56P3MV, .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, + .type_c = 1, }" + register "usb2_ports[8]" = "USB2_PORT_TYPE_C(OC_SKIP)" # Acoustic settings register "AcousticNoiseMitigation" = "1" |