Merge remote-tracking branch 'u-boot/master'

1 files changed, 410 insertions, 0 deletions

diff --git a/drivers/net/npe/IxEthAccMii.c b/drivers/net/npe/IxEthAccMii.c
new file mode 100644
index 0000000..d282aa6
--- /dev/null
+++ b/drivers/net/npe/IxEthAccMii.c
@@ -0,0 +1,410 @@
+/**
+ * @file IxEthAccMii.c
+ *
+ * @author Intel Corporation
+ * @date 
+ *
+ * @brief  MII control functions
+ *
+ * Design Notes:
+ *
+ * IXP400 SW Release version 2.0
+ * 
+ * -- Copyright Notice --
+ * 
+ * @par
+ * Copyright 2001-2005, Intel Corporation.
+ * All rights reserved.
+ * 
+ * @par
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * @par
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * @par
+ * -- End of Copyright Notice --
+ */
+
+#include "IxOsal.h"
+#include "IxEthAcc.h"
+#include "IxEthAcc_p.h"
+#include "IxEthAccMac_p.h"
+#include "IxEthAccMii_p.h"
+
+
+PRIVATE UINT32 miiBaseAddressVirt;
+PRIVATE IxOsalMutex miiAccessLock;
+
+PUBLIC UINT32 ixEthAccMiiRetryCount    = IX_ETH_ACC_MII_TIMEOUT_10TH_SECS;
+PUBLIC UINT32 ixEthAccMiiAccessTimeout = IX_ETH_ACC_MII_10TH_SEC_IN_MILLIS;
+
+/* -----------------------------------
+ * private function prototypes
+ */
+PRIVATE void
+ixEthAccMdioCmdWrite(UINT32 mdioCommand);
+
+PRIVATE void
+ixEthAccMdioCmdRead(UINT32 *data);
+
+PRIVATE void
+ixEthAccMdioStatusRead(UINT32 *data);
+
+
+PRIVATE void
+ixEthAccMdioCmdWrite(UINT32 mdioCommand)
+{
+    REG_WRITE(miiBaseAddressVirt,
+	      IX_ETH_ACC_MAC_MDIO_CMD_1,
+	      mdioCommand & 0xff);
+
+    REG_WRITE(miiBaseAddressVirt,
+	      IX_ETH_ACC_MAC_MDIO_CMD_2,
+	      (mdioCommand >> 8) & 0xff);
+
+    REG_WRITE(miiBaseAddressVirt,
+	      IX_ETH_ACC_MAC_MDIO_CMD_3,
+	      (mdioCommand >> 16) & 0xff);
+
+    REG_WRITE(miiBaseAddressVirt,
+	      IX_ETH_ACC_MAC_MDIO_CMD_4,
+	      (mdioCommand >> 24) & 0xff);
+}
+
+PRIVATE void
+ixEthAccMdioCmdRead(UINT32 *data)
+{
+    UINT32 regval;
+
+    REG_READ(miiBaseAddressVirt,
+	     IX_ETH_ACC_MAC_MDIO_CMD_1,
+	     regval);
+
+    *data = regval & 0xff;
+
+    REG_READ(miiBaseAddressVirt,
+	     IX_ETH_ACC_MAC_MDIO_CMD_2,
+	     regval);
+
+    *data |= (regval & 0xff) << 8;
+
+    REG_READ(miiBaseAddressVirt,
+	     IX_ETH_ACC_MAC_MDIO_CMD_3,
+	     regval);
+
+    *data |= (regval & 0xff) << 16;
+
+    REG_READ(miiBaseAddressVirt,
+	     IX_ETH_ACC_MAC_MDIO_CMD_4,
+	     regval);
+
+    *data |= (regval & 0xff) << 24;
+
+}
+
+PRIVATE void
+ixEthAccMdioStatusRead(UINT32 *data)
+{
+    UINT32 regval;
+
+    REG_READ(miiBaseAddressVirt,
+	     IX_ETH_ACC_MAC_MDIO_STS_1,
+	     regval);
+
+    *data = regval & 0xff;
+
+    REG_READ(miiBaseAddressVirt,
+	     IX_ETH_ACC_MAC_MDIO_STS_2,
+	     regval);
+
+    *data |= (regval & 0xff) << 8;
+
+    REG_READ(miiBaseAddressVirt,
+	     IX_ETH_ACC_MAC_MDIO_STS_3,
+	     regval);
+
+    *data |= (regval & 0xff) << 16;
+
+    REG_READ(miiBaseAddressVirt,
+	     IX_ETH_ACC_MAC_MDIO_STS_4,
+	     regval);
+    
+    *data |= (regval & 0xff) << 24;
+    
+}
+
+
+/********************************************************************
+ * ixEthAccMiiInit
+ */
+IxEthAccStatus
+ixEthAccMiiInit()
+{
+    if(ixOsalMutexInit(&miiAccessLock)!= IX_SUCCESS)
+    {
+	return IX_ETH_ACC_FAIL;
+    }
+
+    miiBaseAddressVirt = (UINT32) IX_OSAL_MEM_MAP(IX_ETH_ACC_MAC_0_BASE, IX_OSAL_IXP400_ETHA_MAP_SIZE);
+    
+    if (miiBaseAddressVirt == 0)
+    {
+      ixOsalLog(IX_OSAL_LOG_LVL_FATAL, 
+		IX_OSAL_LOG_DEV_STDOUT, 
+		"EthAcc: Could not map MII I/O mapped memory\n", 
+		0, 0, 0, 0, 0, 0);
+      
+      return IX_ETH_ACC_FAIL;
+    }
+    
+    return IX_ETH_ACC_SUCCESS;
+}
+
+void
+ixEthAccMiiUnload(void)
+{
+    IX_OSAL_MEM_UNMAP(miiBaseAddressVirt);
+  
+    miiBaseAddressVirt = 0;
+}
+
+PUBLIC IxEthAccStatus
+ixEthAccMiiAccessTimeoutSet(UINT32 timeout, UINT32 retryCount)
+{
+    if (retryCount < 1) return IX_ETH_ACC_FAIL;
+
+    ixEthAccMiiRetryCount    = retryCount;
+    ixEthAccMiiAccessTimeout = timeout;
+
+    return IX_ETH_ACC_SUCCESS;
+}
+
+/*********************************************************************
+ * ixEthAccMiiReadRtn - read a 16 bit value from a PHY
+ */
+IxEthAccStatus      
+ixEthAccMiiReadRtn (UINT8 phyAddr, 
+		    UINT8 phyReg, 
+		    UINT16 *value)
+{
+    UINT32 mdioCommand;
+    UINT32 regval;
+    UINT32 miiTimeout;
+
+    if (!IX_ETH_ACC_IS_SERVICE_INITIALIZED())
+    {
+	return (IX_ETH_ACC_FAIL);
+    }
+
+    if ((phyAddr >= IXP425_ETH_ACC_MII_MAX_ADDR) 
+	|| (phyReg >= IXP425_ETH_ACC_MII_MAX_REG))
+    {
+	return (IX_ETH_ACC_FAIL);
+    }
+
+    if (value == NULL)
+    {
+	return (IX_ETH_ACC_FAIL);
+    }
+
+    ixOsalMutexLock(&miiAccessLock, IX_OSAL_WAIT_FOREVER);
+    mdioCommand = phyReg <<  IX_ETH_ACC_MII_REG_SHL 
+	| phyAddr << IX_ETH_ACC_MII_ADDR_SHL;
+    mdioCommand |= IX_ETH_ACC_MII_GO;
+
+    ixEthAccMdioCmdWrite(mdioCommand);
+    
+    miiTimeout = ixEthAccMiiRetryCount;
+
+    while(miiTimeout)
+    {
+	
+	ixEthAccMdioCmdRead(&regval);
+     
+	if((regval & IX_ETH_ACC_MII_GO) == 0x0)
+	{	    
+	    break;
+	}
+	/* Sleep for a while */
+	ixOsalSleep(ixEthAccMiiAccessTimeout);
+	miiTimeout--;
+    }
+    
+
+    
+    if(miiTimeout == 0)
+    {	
+	ixOsalMutexUnlock(&miiAccessLock);
+	*value = 0xffff;
+	return IX_ETH_ACC_FAIL;
+    }
+    
+    
+    ixEthAccMdioStatusRead(&regval);
+    if(regval & IX_ETH_ACC_MII_READ_FAIL)
+    {
+	ixOsalMutexUnlock(&miiAccessLock);
+	*value = 0xffff;
+	return IX_ETH_ACC_FAIL;
+    }
+
+    *value = regval & 0xffff;
+    ixOsalMutexUnlock(&miiAccessLock);
+    return IX_ETH_ACC_SUCCESS;
+    
+}
+
+
+/*********************************************************************
+ * ixEthAccMiiWriteRtn - write a 16 bit value to a PHY
+ */
+IxEthAccStatus
+ixEthAccMiiWriteRtn (UINT8 phyAddr, 
+		     UINT8 phyReg, 
+		     UINT16 value)
+{
+    UINT32 mdioCommand;
+    UINT32 regval;
+    UINT16 readVal;
+    UINT32 miiTimeout;
+
+    if (!IX_ETH_ACC_IS_SERVICE_INITIALIZED())
+    {
+	return (IX_ETH_ACC_FAIL);
+    }
+
+    if ((phyAddr >= IXP425_ETH_ACC_MII_MAX_ADDR) 
+	|| (phyReg >= IXP425_ETH_ACC_MII_MAX_REG))
+    {
+	return (IX_ETH_ACC_FAIL);
+    }
+   
+    /* ensure that a PHY is present at this address */
+    if(ixEthAccMiiReadRtn(phyAddr,
+                          IX_ETH_ACC_MII_CTRL_REG,
+                          &readVal) != IX_ETH_ACC_SUCCESS)
+    {
+        return (IX_ETH_ACC_FAIL);
+    }
+
+    ixOsalMutexLock(&miiAccessLock, IX_OSAL_WAIT_FOREVER);
+    mdioCommand = phyReg << IX_ETH_ACC_MII_REG_SHL
+	| phyAddr << IX_ETH_ACC_MII_ADDR_SHL ;
+    mdioCommand |= IX_ETH_ACC_MII_GO | IX_ETH_ACC_MII_WRITE | value;
+
+    ixEthAccMdioCmdWrite(mdioCommand);
+    
+    miiTimeout = ixEthAccMiiRetryCount;
+
+    while(miiTimeout)
+    {
+	
+	ixEthAccMdioCmdRead(&regval);
+
+	/*The "GO" bit is reset to 0 when the write completes*/
+	if((regval & IX_ETH_ACC_MII_GO) == 0x0)
+	{		    
+	    break;
+	}
+	/* Sleep for a while */
+	ixOsalSleep(ixEthAccMiiAccessTimeout);
+        miiTimeout--;
+    }
+    
+    ixOsalMutexUnlock(&miiAccessLock);
+    if(miiTimeout == 0)
+    {
+	return IX_ETH_ACC_FAIL;
+    }
+    return IX_ETH_ACC_SUCCESS;
+}
+
+
+/*****************************************************************
+ *
+ *  Phy query functions
+ *
+ */
+IxEthAccStatus
+ixEthAccMiiStatsShow (UINT32 phyAddr)
+{
+    UINT16 regval;
+    printf("Regisers on PHY at address 0x%x\n", phyAddr);
+    ixEthAccMiiReadRtn(phyAddr, IX_ETH_ACC_MII_CTRL_REG, &regval);
+    printf("    Control Register                  :      0x%4.4x\n", regval);
+    ixEthAccMiiReadRtn(phyAddr,  IX_ETH_ACC_MII_STAT_REG, &regval);
+    printf("    Status Register                   :      0x%4.4x\n", regval);
+    ixEthAccMiiReadRtn(phyAddr,  IX_ETH_ACC_MII_PHY_ID1_REG, &regval);
+    printf("    PHY ID1 Register                  :      0x%4.4x\n", regval);
+    ixEthAccMiiReadRtn(phyAddr,  IX_ETH_ACC_MII_PHY_ID2_REG, &regval);
+    printf("    PHY ID2 Register                  :      0x%4.4x\n", regval);
+    ixEthAccMiiReadRtn(phyAddr,  IX_ETH_ACC_MII_AN_ADS_REG, &regval);
+    printf("    Auto Neg ADS Register             :      0x%4.4x\n", regval);
+    ixEthAccMiiReadRtn(phyAddr,  IX_ETH_ACC_MII_AN_PRTN_REG, &regval);
+    printf("    Auto Neg Partner Ability Register :      0x%4.4x\n", regval);
+    ixEthAccMiiReadRtn(phyAddr,  IX_ETH_ACC_MII_AN_EXP_REG, &regval);
+    printf("    Auto Neg Expansion Register       :      0x%4.4x\n", regval);
+    ixEthAccMiiReadRtn(phyAddr,  IX_ETH_ACC_MII_AN_NEXT_REG, &regval);
+    printf("    Auto Neg Next Register            :      0x%4.4x\n", regval);
+
+    return IX_ETH_ACC_SUCCESS;
+}
+
+
+/*****************************************************************
+ *
+ *  Interface query functions
+ *
+ */
+IxEthAccStatus
+ixEthAccMdioShow (void)
+{
+    UINT32 regval;
+
+    if (!IX_ETH_ACC_IS_SERVICE_INITIALIZED())
+    {
+	return (IX_ETH_ACC_FAIL);
+    }
+
+    ixOsalMutexLock(&miiAccessLock, IX_OSAL_WAIT_FOREVER);
+    ixEthAccMdioCmdRead(&regval);
+    ixOsalMutexUnlock(&miiAccessLock);
+    
+    printf("MDIO command register\n");
+    printf("    Go bit      : 0x%x\n", (regval & BIT(31)) >> 31);
+    printf("    MDIO Write  : 0x%x\n", (regval & BIT(26)) >> 26);
+    printf("    PHY address : 0x%x\n", (regval >> 21) & 0x1f);
+    printf("    Reg address : 0x%x\n", (regval >> 16) & 0x1f);
+	
+    ixOsalMutexLock(&miiAccessLock, IX_OSAL_WAIT_FOREVER);
+    ixEthAccMdioStatusRead(&regval);
+    ixOsalMutexUnlock(&miiAccessLock);
+
+    printf("MDIO status register\n");
+    printf("    Read OK     : 0x%x\n", (regval & BIT(31)) >> 31);
+    printf("    Read Data   : 0x%x\n", (regval >> 16) & 0xff);
+
+    return IX_ETH_ACC_SUCCESS;   
+}
+