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authorAngel Pons <th3fanbus@gmail.com>2020-12-17 13:47:13 +0100
committerAngel Pons <th3fanbus@gmail.com>2020-12-21 19:30:05 +0000
commitdb27d6f6d04468959decd8ceb0d558dc35dc6cc3 (patch)
treef00eb798569506b45dc75458a7b076c602126218 /src/mainboard/prodrive/hermes/variants
parent3b879f46b49b756b4f6e851d97677a821e11ce1d (diff)
mb/prodrive/hermes: Update USB 2.0 settings
Test results show that USB signals look better with these settings. Yes, there's a macro in the devicetree now. All ports use the same settings except for the overcurrent pin, so this avoids redundancy. Change-Id: Ib0dafab88d8dcc05388b724f6a7183c13ac64934 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48694 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/prodrive/hermes/variants')
-rw-r--r--src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb50
1 files changed, 27 insertions, 23 deletions
diff --git a/src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb b/src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb
index b543a78c5c..4d35c47ddb 100644
--- a/src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb
+++ b/src/mainboard/prodrive/hermes/variants/baseboard/overridetree.cb
@@ -85,43 +85,47 @@ chip soc/intel/cannonlake
register "PcieClkSrcClkReq[4]" = "4" # M2_M_CLK_REQ_n
register "PcieClkSrcClkReq[5]" = "5" # M2_E_CLK_REQ_n
+ # USB OC5-7: not connected
+ register "usb2_ports" = "{
+
+#define HERMES_USB2_CONFIG(pin) { \
+ .enable = 1, \
+ .ocpin = (pin), \
+ .tx_bias = USB2_BIAS_0MV, \
+ .tx_emp_enable = USB2_DE_EMP_ON_PRE_EMP_ON, \
+ .pre_emp_bias = USB2_BIAS_28P15MV, \
+ .pre_emp_bit = USB2_FULL_BIT_PRE_EMP, \
+}
+ [0] = HERMES_USB2_CONFIG(OC0), /* USB3 rear panel 1 */
+ [1] = HERMES_USB2_CONFIG(OC0),
+ [2] = HERMES_USB2_CONFIG(OC1), /* USB3 rear panel 2 */
+ [3] = HERMES_USB2_CONFIG(OC1),
+ [4] = HERMES_USB2_CONFIG(OC2), /* USB3 internal header CN_USB3_HDR */
+ [5] = HERMES_USB2_CONFIG(OC2),
+ [6] = HERMES_USB2_CONFIG(OC3), /* USB2 internal header USB2_HDR1 */
+ [7] = HERMES_USB2_CONFIG(OC3),
+ [8] = HERMES_USB2_CONFIG(OC4), /* USB2 internal header USB2_HDR1 */
+ [9] = HERMES_USB2_CONFIG(OC4),
+ [10] = HERMES_USB2_CONFIG(OC_SKIP), /* BMC */
+ [11] = USB2_PORT_EMPTY,
+ [12] = HERMES_USB2_CONFIG(OC_SKIP), /* piggy-back */
+ [13] = HERMES_USB2_CONFIG(OC_SKIP), /* M.2 key E */
+ }"
+
# USB Config 2.0/3.0
# Enumeration starts at 0
# USB 3.0
# USB OC0: RP1
register "usb3_ports[0]" = "USB3_PORT_DEFAULT(OC0)"
register "usb3_ports[1]" = "USB3_PORT_DEFAULT(OC0)"
- register "usb2_ports[0]" = "USB2_PORT_TYPE_C(OC0)"
- register "usb2_ports[1]" = "USB2_PORT_TYPE_C(OC0)"
# USB OC1: RP2
register "usb3_ports[2]" = "USB3_PORT_DEFAULT(OC1)"
register "usb3_ports[3]" = "USB3_PORT_DEFAULT(OC1)"
- register "usb2_ports[2]" = "USB2_PORT_TYPE_C(OC1)"
- register "usb2_ports[3]" = "USB2_PORT_TYPE_C(OC1)"
# USB OC2: Internal Header CN_USB3_HDR
register "usb3_ports[4]" = "USB3_PORT_DEFAULT(OC2)"
register "usb3_ports[5]" = "USB3_PORT_DEFAULT(OC2)"
- register "usb2_ports[4]" = "USB2_PORT_TYPE_C(OC2)"
- register "usb2_ports[5]" = "USB2_PORT_TYPE_C(OC2)"
-
- # USB 2.0
- # USB OC3: Internal Header USB2_HDR1
- register "usb2_ports[6]" = "USB2_PORT_MID(OC3)"
- register "usb2_ports[7]" = "USB2_PORT_MID(OC3)"
-
- # USB OC4: Internal Header USB2_HDR2
- register "usb2_ports[8]" = "USB2_PORT_MID(OC4)"
- register "usb2_ports[9]" = "USB2_PORT_MID(OC4)"
-
- # USB OC5-7: not connected
- # BMC
- register "usb2_ports[10]" = "USB2_PORT_MID(OC_SKIP)"
- # piggy-back
- register "usb2_ports[12]" = "USB2_PORT_MID(OC_SKIP)"
- # M2 key E
- register "usb2_ports[13]" = "USB2_PORT_MID(OC_SKIP)"
# Thermal
register "tcc_offset" = "1" # TCC of 99C