/**
* Check if link fail because device does not support Gen2
*
*
* @param[in] CurrentEngine Pointer to engine config descriptor
* @param[in] Pcie Pointer to global PCIe configuration
*
*/
VOID
PcieTrainingGen2FailV2 (
IN PCIe_ENGINE_CONFIG *CurrentEngine,
IN PCIe_PLATFORM_CONFIG *Pcie
)
{
UINT8 LinkTrainingState;
if (CurrentEngine->Type.Port.PortData.MiscControls.LinkSafeMode != PcieGen1) {
PcieConfigUpdatePortStatus (CurrentEngine, INIT_STATUS_PCIE_PORT_GEN2_RECOVERY, 0);
CurrentEngine->Type.Port.PortData.MiscControls.LinkSafeMode = PcieGen1;
PcieLinkSafeMode (CurrentEngine, Pcie);
LinkTrainingState = LinkStateResetAssert;
PutEventLog (
AGESA_WARNING,
GNB_EVENT_BROKEN_LANE_RECOVERY,
CurrentEngine->Type.Port.Address.AddressValue,
0,
0,
0,
GnbLibGetHeader (Pcie)
);
} else {
LinkTrainingState = LinkStateTrainingFail;
}
PcieTrainingSetPortStateV2 (CurrentEngine, LinkTrainingState, FALSE, Pcie);
}
VOID
STATIC
PciePortPostS3InitCallback (
IN PCIe_ENGINE_CONFIG *Engine,
IN OUT VOID *Buffer,
IN PCIe_PLATFORM_CONFIG *Pcie
)
{
PCIE_LINK_SPEED_CAP LinkSpeedCapability;
ASSERT (Engine->EngineData.EngineType == PciePortEngine);
LinkSpeedCapability = PcieFmGetLinkSpeedCap (PCIE_PORT_GEN_CAP_BOOT, Engine, Pcie);
PcieSetLinkSpeedCap (LinkSpeedCapability, Engine, Pcie);
if (Engine->Type.Port.PortData.MiscControls.LinkSafeMode == PcieGen1) {
PcieLinkSafeMode (Engine, Pcie);
}
if (Engine->Type.Port.PortData.MiscControls.LinkComplianceMode == 0x1) {
PcieForceCompliance (Engine, Pcie);
}
if (!Engine->Type.Port.IsSB) {
if ((PcieConfigCheckPortStatus (Engine, INIT_STATUS_PCIE_TRAINING_SUCCESS) ||
((Engine->Type.Port.PortData.LinkHotplug != HotplugDisabled) && (Engine->Type.Port.PortData.LinkHotplug != HotplugInboard)) ||
(Engine->Type.Port.PortData.MiscControls.LinkComplianceMode == 0x1))) {
PcieTrainingSetPortState (Engine, LinkStateResetExit, FALSE, Pcie);
} else {
PcieTrainingSetPortState (Engine, LinkStateDeviceNotPresent, FALSE, Pcie);
}
PcieConfigUpdatePortStatus (Engine, 0, INIT_STATUS_PCIE_TRAINING_SUCCESS);
} else {
PcieTrainingSetPortState (Engine, LinkStateTrainingSuccess, FALSE, Pcie);
}
}
VOID
STATIC
PciePortPostInitCallback (
IN PCIe_ENGINE_CONFIG *Engine,
IN OUT VOID *Buffer,
IN PCIe_PLATFORM_CONFIG *Pcie
)
{
PCIE_LINK_SPEED_CAP LinkSpeedCapability;
ASSERT (Engine->EngineData.EngineType == PciePortEngine);
if (Engine->Type.Port.PortData.MiscControls.LinkSafeMode == PcieGen1) {
PcieLinkSafeMode (Engine, Pcie);
}
LinkSpeedCapability = PcieFmGetLinkSpeedCap (PCIE_PORT_GEN_CAP_BOOT, Engine, Pcie);
PcieSetLinkSpeedCap (LinkSpeedCapability, Engine, Pcie);
// Retrain only present port to Gen2
if (PcieConfigCheckPortStatus (Engine, INIT_STATUS_PCIE_TRAINING_SUCCESS) && (LinkSpeedCapability > PcieGen1) && !Engine->Type.Port.IsSB) {
PcieTrainingSetPortState (Engine, LinkStateRetrain, FALSE, Pcie);
PcieConfigUpdatePortStatus (Engine, 0, INIT_STATUS_PCIE_TRAINING_SUCCESS);
}
// Train ports forced to compliance
if (Engine->Type.Port.PortData.MiscControls.LinkComplianceMode == 0x1) {
PcieForceCompliance (Engine, Pcie);
PcieTrainingSetPortState (Engine, LinkStateResetExit, FALSE, Pcie);
}
}
VOID
STATIC
PciePostS3PortInitCallbackML (
IN PCIe_ENGINE_CONFIG *Engine,
IN OUT VOID *Buffer,
IN PCIe_PLATFORM_CONFIG *Pcie
)
{
PCIE_LINK_SPEED_CAP LinkSpeedCapability;
PCIE_LINK_TRAINING_STATE State;
ASSERT (Engine->EngineData.EngineType == PciePortEngine);
LinkSpeedCapability = PcieFmGetLinkSpeedCap (PCIE_PORT_GEN_CAP_BOOT, Engine);
PcieSetLinkSpeedCapV4 (LinkSpeedCapability, Engine, Pcie);
if (Engine->Type.Port.PortData.MiscControls.LinkSafeMode == PcieGen1) {
PcieLinkSafeMode (Engine, Pcie);
}
if (!PcieConfigIsSbPcieEngine (Engine)) {
//
// General Port
//
State = LinkStateDeviceNotPresent;
if (Engine->Type.Port.PortData.LinkHotplug == HotplugDisabled || Engine->Type.Port.PortData.LinkHotplug == HotplugInboard) {
//
// Non hotplug device: we only check status from previous boot
//
if (PcieConfigCheckPortStatus (Engine, INIT_STATUS_PCIE_TRAINING_SUCCESS)) {
State = LinkStateResetExit;
}
} else {
UINT32 PcieScratch;
//
// Get endpoint staus from scratch
//
PcieScratch = PciePortRegisterRead (Engine, DxFxxE4_x01_ADDRESS, Pcie);
//
// Hotplug device: we check ep status if reported
//
if ((PcieScratch & 0x1) == 0) {
State = LinkStateResetExit;
}
}
//
// For compliance we always leave link in enabled state
//
if (Engine->Type.Port.PortData.MiscControls.LinkComplianceMode) {
State = LinkStateResetExit;
}
PcieConfigUpdatePortStatus (Engine, 0, INIT_STATUS_PCIE_TRAINING_SUCCESS);
} else {
//
// SB port
//
State = LinkStateTrainingSuccess;
}
PcieTrainingSetPortStateV2 (Engine, State, FALSE, Pcie);
}
/**
* Links in compliance
*
*
* @param[in] CurrentEngine Pointer to engine config descriptor
* @param[in] Pcie Pointer to global PCIe configuration
*
*/
VOID
STATIC
PcieTrainingCompliance (
IN PCIe_ENGINE_CONFIG *CurrentEngine,
IN PCIe_PLATFORM_CONFIG *Pcie
)
{
PcieConfigUpdatePortStatus (CurrentEngine, INIT_STATUS_PCIE_PORT_IN_COMPLIANCE, 0);
PcieTrainingSetPortStateV2 (CurrentEngine, LinkStateTrainingCompleted, FALSE, Pcie);
}
/**
* Training fail on this port
*
*
* @param[in] CurrentEngine Pointer to engine config descriptor
* @param[in] Pcie Pointer to global PCIe configuration
*
*/
VOID
STATIC
PcieTrainingFail (
IN PCIe_ENGINE_CONFIG *CurrentEngine,
IN PCIe_PLATFORM_CONFIG *Pcie
)
{
PcieConfigUpdatePortStatus (CurrentEngine, INIT_STATUS_PCIE_PORT_TRAINING_FAIL, 0);
PcieTrainingSetPortStateV2 (CurrentEngine, LinkStateDeviceNotPresent, FALSE, Pcie);
}
VOID
STATIC
PcieTrainingSuccess (
IN PCIe_ENGINE_CONFIG *CurrentEngine,
IN PCIe_PLATFORM_CONFIG *Pcie
)
{
PcieConfigUpdatePortStatus (CurrentEngine, INIT_STATUS_PCIE_TRAINING_SUCCESS, 0);
PcieTrainingSetPortState (CurrentEngine, LinkStateTrainingCompleted, FALSE, Pcie);
}
VOID
STATIC
PcieTrainingSuccess (
IN PCIe_ENGINE_CONFIG *CurrentEngine,
IN PCIe_PLATFORM_CONFIG *Pcie
)
{
PcieConfigUpdatePortStatus (CurrentEngine, INIT_STATUS_PCIE_TRAINING_SUCCESS, 0);
PcieTrainingSetPortStateV2 (CurrentEngine, LinkStateTrainingCompleted, FALSE, Pcie);
GnbLibPciRMW (
CurrentEngine->Type.Port.Address.AddressValue | DxFxx68_ADDRESS,
AccessWidth32,
(UINT32) ~DxFxx68_LinkBWManagementStatus_MASK,
1 << DxFxx68_LinkBWManagementStatus_OFFSET,
GnbLibGetHeader (Pcie)
);
}
