Rob Barnes has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/46601 )
Change subject: mb/google/zork/woomax: Adjust disconnect threshold ......................................................................
mb/google/zork/woomax: Adjust disconnect threshold
The disconnect voltage needs to be adjusted up because the HS DC voltage level is 0xF.
BUG=b:170879690 TEST=Servo_v4 USB hub functions BRANCH=zork
Change-Id: If8662015a45c57e457b4593e55af888084842f58 Signed-off-by: Rob Barnes robbarnes@google.com --- M src/mainboard/google/zork/variants/woomax/overridetree.cb 1 file changed, 2 insertions(+), 2 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/01/46601/1
diff --git a/src/mainboard/google/zork/variants/woomax/overridetree.cb b/src/mainboard/google/zork/variants/woomax/overridetree.cb index 19d66fc..e9d66f9 100644 --- a/src/mainboard/google/zork/variants/woomax/overridetree.cb +++ b/src/mainboard/google/zork/variants/woomax/overridetree.cb @@ -24,7 +24,7 @@ # End : OPN Performance Configuration #USB 2.0 strength register "usb_2_port_tune_params[0]" = "{ - .com_pds_tune = 0x03, + .com_pds_tune = 0x07, .sq_rx_tune = 0x3, .tx_fsls_tune = 0x3, .tx_pre_emp_amp_tune = 0x03, @@ -36,7 +36,7 @@ }"
register "usb_2_port_tune_params[3]" = "{ - .com_pds_tune = 0x03, + .com_pds_tune = 0x07, .sq_rx_tune = 0x3, .tx_fsls_tune = 0x3, .tx_pre_emp_amp_tune = 0x03,