soc/intel: skl,cnl,icl,jsl,tgl: disable usb over-current pin by default
Fsp configures the USB over-current pin and overrides the according pad
configuration to NF1, regardless of the port being configured as disabled.
Thus, set the OC pin to 0xff ("disabled") in this case to prevent this.
This allows us to skip setting USBx_PORT_EMPTY in the devicetree for
disabled USB ports.
Change-Id: Ib8ea2ea26c0623d4db910e487b37255e907b299d
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45112
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/skylake/chip.c b/src/soc/intel/skylake/chip.c
index e96d624..a0bcac7 100644
--- a/src/soc/intel/skylake/chip.c
+++ b/src/soc/intel/skylake/chip.c
@@ -139,8 +139,6 @@
for (i = 0; i < ARRAY_SIZE(config->usb2_ports); i++) {
params->PortUsb20Enable[i] =
config->usb2_ports[i].enable;
- params->Usb2OverCurrentPin[i] =
- config->usb2_ports[i].ocpin;
params->Usb2AfePetxiset[i] =
config->usb2_ports[i].pre_emp_bias;
params->Usb2AfeTxiset[i] =
@@ -149,11 +147,20 @@
config->usb2_ports[i].tx_emp_enable;
params->Usb2AfePehalfbit[i] =
config->usb2_ports[i].pre_emp_bit;
+
+ if (config->usb2_ports[i].enable)
+ params->Usb2OverCurrentPin[i] = config->usb2_ports[i].ocpin;
+ else
+ params->Usb2OverCurrentPin[i] = 0xff;
}
for (i = 0; i < ARRAY_SIZE(config->usb3_ports); i++) {
params->PortUsb30Enable[i] = config->usb3_ports[i].enable;
- params->Usb3OverCurrentPin[i] = config->usb3_ports[i].ocpin;
+ if (config->usb3_ports[i].enable) {
+ params->Usb3OverCurrentPin[i] = config->usb3_ports[i].ocpin;
+ } else {
+ params->Usb3OverCurrentPin[i] = 0xff;
+ }
if (config->usb3_ports[i].tx_de_emp) {
params->Usb3HsioTxDeEmphEnable[i] = 1;
params->Usb3HsioTxDeEmph[i] =