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/cannonlake/fsp_params.c b/src/soc/intel/cannonlake/fsp_params.c
index 615a94f..63a85c2 100644
--- a/src/soc/intel/cannonlake/fsp_params.c
+++ b/src/soc/intel/cannonlake/fsp_params.c
@@ -262,15 +262,6 @@
/* Load VBT before devicetree-specific config. */
params->GraphicsConfigPtr = (uintptr_t)vbt_get();
- /* Set USB OC pin to 0 first */
- for (i = 0; i < ARRAY_SIZE(params->Usb2OverCurrentPin); i++) {
- params->Usb2OverCurrentPin[i] = 0;
- }
-
- for (i = 0; i < ARRAY_SIZE(params->Usb3OverCurrentPin); i++) {
- params->Usb3OverCurrentPin[i] = 0;
- }
-
mainboard_silicon_init_params(params);
const struct soc_power_limits_config *soc_config;
@@ -379,12 +370,16 @@
/* USB */
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] = config->usb2_ports[i].tx_bias;
params->Usb2AfePredeemp[i] =
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;
}
if (config->PchUsb2PhySusPgDisable)
@@ -392,7 +387,11 @@
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] =
diff --git a/src/soc/intel/icelake/fsp_params.c b/src/soc/intel/icelake/fsp_params.c
index 0130d2c..8e33174 100644
--- a/src/soc/intel/icelake/fsp_params.c
+++ b/src/soc/intel/icelake/fsp_params.c
@@ -64,13 +64,6 @@
/* Load VBT before devicetree-specific config. */
params->GraphicsConfigPtr = (uintptr_t)vbt_get();
- /* Set USB OC pin to 0 first */
- for (i = 0; i < ARRAY_SIZE(params->Usb2OverCurrentPin); i++)
- params->Usb2OverCurrentPin[i] = 0;
-
- for (i = 0; i < ARRAY_SIZE(params->Usb3OverCurrentPin); i++)
- params->Usb3OverCurrentPin[i] = 0;
-
/* Use coreboot MP PPI services if Kconfig is enabled */
if (CONFIG(USE_INTEL_FSP_TO_CALL_COREBOOT_PUBLISH_MP_PPI))
params->CpuMpPpi = (uintptr_t) mp_fill_ppi_services_data();
@@ -135,8 +128,6 @@
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->Usb2PhyPetxiset[i] =
config->usb2_ports[i].pre_emp_bias;
params->Usb2PhyTxiset[i] =
@@ -145,11 +136,20 @@
config->usb2_ports[i].tx_emp_enable;
params->Usb2PhyPehalfbit[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] =
diff --git a/src/soc/intel/jasperlake/fsp_params.c b/src/soc/intel/jasperlake/fsp_params.c
index 40be0d4..b787192 100644
--- a/src/soc/intel/jasperlake/fsp_params.c
+++ b/src/soc/intel/jasperlake/fsp_params.c
@@ -253,19 +253,25 @@
/* USB configuration */
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->Usb2PhyPetxiset[i] = config->usb2_ports[i].pre_emp_bias;
params->Usb2PhyTxiset[i] = config->usb2_ports[i].tx_bias;
params->Usb2PhyPredeemp[i] = config->usb2_ports[i].tx_emp_enable;
params->Usb2PhyPehalfbit[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] = config->usb3_ports[i].tx_de_emp;
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] =
diff --git a/src/soc/intel/tigerlake/fsp_params.c b/src/soc/intel/tigerlake/fsp_params.c
index 1601c2c..73a620d 100644
--- a/src/soc/intel/tigerlake/fsp_params.c
+++ b/src/soc/intel/tigerlake/fsp_params.c
@@ -148,16 +148,24 @@
/* USB */
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->Usb2PhyPetxiset[i] = config->usb2_ports[i].pre_emp_bias;
params->Usb2PhyTxiset[i] = config->usb2_ports[i].tx_bias;
params->Usb2PhyPredeemp[i] = config->usb2_ports[i].tx_emp_enable;
params->Usb2PhyPehalfbit[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] = config->usb3_ports[i].tx_de_emp;