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authorLucas Chen <lucas.chen@quanta.corp-partner.google.com>2020-10-30 14:11:26 +0800
committerFelix Held <felix-coreboot@felixheld.de>2020-11-06 19:23:04 +0000
commitd8c189b669a8b98448f287fa0872d440b8892dd1 (patch)
tree795cf8de0d44901d7823628f29563d450c97d6dd /src
parentea4db9b8fb2e29a1640afbf8b59b974d61c5b6a4 (diff)
downloadcoreboot-d8c189b669a8b98448f287fa0872d440b8892dd1.tar.xz
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>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/zork/variants/ezkinil/overridetree.cb25
1 files changed, 25 insertions, 0 deletions
diff --git a/src/mainboard/google/zork/variants/ezkinil/overridetree.cb b/src/mainboard/google/zork/variants/ezkinil/overridetree.cb
index 4fd7e0e063..2537ee8fc4 100644
--- a/src/mainboard/google/zork/variants/ezkinil/overridetree.cb
+++ b/src/mainboard/google/zork/variants/ezkinil/overridetree.cb
@@ -29,6 +29,31 @@ chip soc/amd/picasso
.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,