Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/47011 )
Change subject: zork/var/ezkinil: Adjust USB2 phy si fine tune on DVT Board ......................................................................
zork/var/ezkinil: Adjust USB2 phy si fine tune on DVT Board
Adjust USB2 phy si setting fine tune on DVT for Ezkinil.
BRANCH=zork BUG=b:156315391 TEST=Measuring scope timing and test usb detection
Signed-off-by: Lucas Chen lucas.chen@quanta.corp-partner.google.com Change-Id: Id537b6e9a17f47481b6aedcea0c6a8474d993b6d Reviewed-on: https://review.coreboot.org/c/coreboot/+/47011 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Rob Barnes robbarnes@google.com Reviewed-by: Aaron Durbin adurbin@chromium.org --- M src/mainboard/google/zork/variants/ezkinil/overridetree.cb 1 file changed, 25 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Aaron Durbin: Looks good to me, approved Lucas Chen: Looks good to me, but someone else must approve Rob Barnes: Looks good to me, but someone else must approve
diff --git a/src/mainboard/google/zork/variants/ezkinil/overridetree.cb b/src/mainboard/google/zork/variants/ezkinil/overridetree.cb index 4fd7e0e..2537ee8 100644 --- a/src/mainboard/google/zork/variants/ezkinil/overridetree.cb +++ b/src/mainboard/google/zork/variants/ezkinil/overridetree.cb @@ -29,6 +29,31 @@ .ports.xhci0_port3 = 1, }"
+ #USB 2.0 strength + register "usb_2_port_tune_params[2]" = "{ + .com_pds_tune = 0x05, + .sq_rx_tune = 0x3, + .tx_fsls_tune = 0x3, + .tx_pre_emp_amp_tune = 0x03, + .tx_pre_emp_pulse_tune = 0x0, + .tx_rise_tune = 0x1, + .rx_vref_tune = 0x9, + .tx_hsxv_tune = 0x3, + .tx_res_tune = 0x01, + }" + + register "usb_2_port_tune_params[3]" = "{ + .com_pds_tune = 0x05, + .sq_rx_tune = 0x3, + .tx_fsls_tune = 0x3, + .tx_pre_emp_amp_tune = 0x03, + .tx_pre_emp_pulse_tune = 0x0, + .tx_rise_tune = 0x1, + .rx_vref_tune = 0x9, + .tx_hsxv_tune = 0x3, + .tx_res_tune = 0x01, + }" + # Enable I2C2 for trackpad, touchscreen, pen at 400kHz register "i2c[2]" = "{ .speed = I2C_SPEED_FAST,