diff options
Diffstat (limited to 'EmbeddedPkg/Drivers/Lan9118Dxe/Lan9118DxeUtil.c')
| -rw-r--r-- | EmbeddedPkg/Drivers/Lan9118Dxe/Lan9118DxeUtil.c | 62 |
1 files changed, 33 insertions, 29 deletions
diff --git a/EmbeddedPkg/Drivers/Lan9118Dxe/Lan9118DxeUtil.c b/EmbeddedPkg/Drivers/Lan9118Dxe/Lan9118DxeUtil.c index 9531b0ba2a..3ef98ef901 100644 --- a/EmbeddedPkg/Drivers/Lan9118Dxe/Lan9118DxeUtil.c +++ b/EmbeddedPkg/Drivers/Lan9118Dxe/Lan9118DxeUtil.c @@ -236,7 +236,7 @@ IndirectEEPROMRead32 ( // Write to Eeprom command register
MmioWrite32 (LAN9118_E2P_CMD, EepromCmd);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
// Wait until operation has completed
while (MmioRead32 (LAN9118_E2P_CMD) & E2P_EPC_BUSY);
@@ -284,7 +284,7 @@ IndirectEEPROMWrite32 ( // Write to Eeprom command register
MmioWrite32 (LAN9118_E2P_CMD, EepromCmd);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
// Wait until operation has completed
while (MmioRead32 (LAN9118_E2P_CMD) & E2P_EPC_BUSY);
@@ -355,31 +355,33 @@ Lan9118Initialize ( IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp
)
{
- UINTN Timeout;
+ UINTN Retries;
UINT64 DefaultMacAddress;
// Attempt to wake-up the device if it is in a lower power state
if (((MmioRead32 (LAN9118_PMT_CTRL) & MPTCTRL_PM_MODE_MASK) >> 12) != 0) {
DEBUG ((DEBUG_NET, "Waking from reduced power state.\n"));
MmioWrite32 (LAN9118_BYTE_TEST, 0xFFFFFFFF);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
// Check that device is active
- Timeout = 20;
- while ((MmioRead32 (LAN9118_PMT_CTRL) & MPTCTRL_READY) == 0 && --Timeout) {
+ Retries = 20;
+ while ((MmioRead32 (LAN9118_PMT_CTRL) & MPTCTRL_READY) == 0 && --Retries) {
gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
- if (!Timeout) {
+ if (!Retries) {
return EFI_TIMEOUT;
}
// Check that EEPROM isn't active
- Timeout = 20;
- while ((MmioRead32 (LAN9118_E2P_CMD) & E2P_EPC_BUSY) && --Timeout){
+ Retries = 20;
+ while ((MmioRead32 (LAN9118_E2P_CMD) & E2P_EPC_BUSY) && --Retries){
gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
- if (!Timeout) {
+ if (!Retries) {
return EFI_TIMEOUT;
}
@@ -447,11 +449,12 @@ SoftReset ( // Write the configuration
MmioWrite32 (LAN9118_HW_CFG, HwConf);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
// Wait for reset to complete
while (MmioRead32 (LAN9118_HW_CFG) & HWCFG_SRST) {
+ MemoryFence();
gBS->Stall (LAN9118_STALL);
ResetTime += 1;
@@ -500,7 +503,7 @@ PhySoftReset ( // Wait for completion
while (MmioRead32 (LAN9118_PMT_CTRL) & MPTCTRL_PHY_RST) {
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
// PHY Basic Control Register reset
} else if (Flags & PHY_RESET_BCR) {
@@ -508,7 +511,7 @@ PhySoftReset ( // Wait for completion
while (IndirectPHYRead32 (PHY_INDEX_BASIC_CTRL) & PHYCR_RESET) {
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
}
@@ -542,7 +545,7 @@ ConfigureHardware ( // Write the configuration
MmioWrite32 (LAN9118_GPIO_CFG, GpioConf);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
return EFI_SUCCESS;
@@ -571,7 +574,7 @@ AutoNegotiate ( UINT32 PhyControl;
UINT32 PhyStatus;
UINT32 Features;
- UINT32 TimeOut;
+ UINT32 Retries;
// First check that auto-negotiation is supported
PhyStatus = IndirectPHYRead32 (PHY_INDEX_BASIC_STATUS);
@@ -583,11 +586,12 @@ AutoNegotiate ( // Check that link is up first
if ((PhyStatus & PHYSTS_LINK_STS) == 0) {
// Wait until it is up or until Time Out
- TimeOut = 2000;
+ Retries = FixedPcdGet32 (PcdLan9118DefaultNegotiationTimeout) / LAN9118_STALL;
while ((IndirectPHYRead32 (PHY_INDEX_BASIC_STATUS) & PHYSTS_LINK_STS) == 0) {
+ MemoryFence();
gBS->Stall (LAN9118_STALL);
- TimeOut--;
- if (!TimeOut) {
+ Retries--;
+ if (!Retries) {
DEBUG ((EFI_D_ERROR, "Link timeout in auto-negotiation.\n"));
return EFI_TIMEOUT;
}
@@ -671,7 +675,7 @@ StopTx ( TxCfg = MmioRead32 (LAN9118_TX_CFG);
TxCfg |= TXCFG_TXS_DUMP | TXCFG_TXD_DUMP;
MmioWrite32 (LAN9118_TX_CFG, TxCfg);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
// Check if already stopped
@@ -690,7 +694,7 @@ StopTx ( if (TxCfg & TXCFG_TX_ON) {
TxCfg |= TXCFG_STOP_TX;
MmioWrite32 (LAN9118_TX_CFG, TxCfg);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
// Wait for Tx to finish transmitting
while (MmioRead32 (LAN9118_TX_CFG) & TXCFG_STOP_TX);
@@ -725,7 +729,7 @@ StopRx ( RxCfg = MmioRead32 (LAN9118_RX_CFG);
RxCfg |= RXCFG_RX_DUMP;
MmioWrite32 (LAN9118_RX_CFG, RxCfg);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
while (MmioRead32 (LAN9118_RX_CFG) & RXCFG_RX_DUMP);
}
@@ -751,28 +755,28 @@ StartTx ( TxCfg = MmioRead32 (LAN9118_TX_CFG);
TxCfg |= TXCFG_TXS_DUMP | TXCFG_TXD_DUMP;
MmioWrite32 (LAN9118_TX_CFG, TxCfg);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
// Check if tx was started from MAC and enable if not
if (Flags & START_TX_MAC) {
MacCsr = IndirectMACRead32 (INDIRECT_MAC_INDEX_CR);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
if ((MacCsr & MACCR_TX_EN) == 0) {
MacCsr |= MACCR_TX_EN;
IndirectMACWrite32 (INDIRECT_MAC_INDEX_CR, MacCsr);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
}
// Check if tx was started from TX_CFG and enable if not
if (Flags & START_TX_CFG) {
TxCfg = MmioRead32 (LAN9118_TX_CFG);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
if ((TxCfg & TXCFG_TX_ON) == 0) {
TxCfg |= TXCFG_TX_ON;
MmioWrite32 (LAN9118_TX_CFG, TxCfg);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
}
@@ -802,14 +806,14 @@ StartRx ( RxCfg = MmioRead32 (LAN9118_RX_CFG);
RxCfg |= RXCFG_RX_DUMP;
MmioWrite32 (LAN9118_RX_CFG, RxCfg);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
while (MmioRead32 (LAN9118_RX_CFG) & RXCFG_RX_DUMP);
}
MacCsr |= MACCR_RX_EN;
IndirectMACWrite32 (INDIRECT_MAC_INDEX_CR, MacCsr);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
}
return EFI_SUCCESS;
@@ -999,7 +1003,7 @@ ChangeFifoAllocation ( HwConf &= ~(0xF0000);
HwConf |= ((TxFifoOption & 0xF) << 16);
MmioWrite32 (LAN9118_HW_CFG, HwConf);
- gBS->Stall (LAN9118_STALL);
+ MemoryFence();
return EFI_SUCCESS;
}
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