diff options
Diffstat (limited to 'drivers/net/npe/IxEthMii.c')
| -rw-r--r-- | drivers/net/npe/IxEthMii.c | 473 |
1 files changed, 0 insertions, 473 deletions
diff --git a/drivers/net/npe/IxEthMii.c b/drivers/net/npe/IxEthMii.c deleted file mode 100644 index 27f3548..0000000 --- a/drivers/net/npe/IxEthMii.c +++ /dev/null @@ -1,473 +0,0 @@ -/** - * @file IxEthMii.c - * - * @author Intel Corporation - * @date - * - * @brief MII control functions - * - * Design Notes: - * - * - * @par - * IXP400 SW Release version 2.0 - * - * -- Copyright Notice -- - * - * @par - * Copyright 2001-2005, Intel Corporation. - * All rights reserved. - * - * @par - * SPDX-License-Identifier: BSD-3-Clause - * @par - * -- End of Copyright Notice -- - */ - -#include "IxOsal.h" - -#include "IxEthAcc.h" -#include "IxEthMii_p.h" - -#ifdef __wince -#include "IxOsPrintf.h" -#endif - -/* Array to store the phy IDs of the discovered phys */ -PRIVATE UINT32 ixEthMiiPhyId[IXP425_ETH_ACC_MII_MAX_ADDR]; - -/********************************************************* - * - * Scan for PHYs on the MII bus. This function returns - * an array of booleans, one for each PHY address. - * If a PHY is found at a particular address, the - * corresponding entry in the array is set to true. - * - */ - -PUBLIC IX_STATUS -ixEthMiiPhyScan(BOOL phyPresent[], UINT32 maxPhyCount) -{ - UINT32 i; - UINT16 regval, regvalId1, regvalId2; - - /*Search for PHYs on the MII*/ - /*Search for existant phys on the MDIO bus*/ - - if ((phyPresent == NULL) || - (maxPhyCount > IXP425_ETH_ACC_MII_MAX_ADDR)) - { - return IX_FAIL; - } - - /* fill the array */ - for(i=0; - i<IXP425_ETH_ACC_MII_MAX_ADDR; - i++) - { - phyPresent[i] = false; - } - - /* iterate through the PHY addresses */ - for(i=0; - maxPhyCount > 0 && i<IXP425_ETH_ACC_MII_MAX_ADDR; - i++) - { - ixEthMiiPhyId[i] = IX_ETH_MII_INVALID_PHY_ID; - if(ixEthAccMiiReadRtn(i, - IX_ETH_MII_CTRL_REG, - ®val) == IX_ETH_ACC_SUCCESS) - { - if((regval & 0xffff) != 0xffff) - { - maxPhyCount--; - /*Need to read the register twice here to flush PHY*/ - ixEthAccMiiReadRtn(i, IX_ETH_MII_PHY_ID1_REG, ®valId1); - ixEthAccMiiReadRtn(i, IX_ETH_MII_PHY_ID1_REG, ®valId1); - ixEthAccMiiReadRtn(i, IX_ETH_MII_PHY_ID2_REG, ®valId2); - ixEthMiiPhyId[i] = (regvalId1 << IX_ETH_MII_REG_SHL) | regvalId2; - if ((ixEthMiiPhyId[i] == IX_ETH_MII_KS8995_PHY_ID) - || (ixEthMiiPhyId[i] == IX_ETH_MII_LXT971_PHY_ID) - || (ixEthMiiPhyId[i] == IX_ETH_MII_LXT972_PHY_ID) - || (ixEthMiiPhyId[i] == IX_ETH_MII_LXT973_PHY_ID) - || (ixEthMiiPhyId[i] == IX_ETH_MII_LXT973A3_PHY_ID) - || (ixEthMiiPhyId[i] == IX_ETH_MII_LXT9785_PHY_ID) - ) - { - /* supported phy */ - phyPresent[i] = true; - } /* end of if(ixEthMiiPhyId) */ - else - { - if (ixEthMiiPhyId[i] != IX_ETH_MII_INVALID_PHY_ID) - { - /* unsupported phy */ - ixOsalLog (IX_OSAL_LOG_LVL_ERROR, - IX_OSAL_LOG_DEV_STDOUT, - "ixEthMiiPhyScan : unexpected Mii PHY ID %8.8x\n", - ixEthMiiPhyId[i], 2, 3, 4, 5, 6); - ixEthMiiPhyId[i] = IX_ETH_MII_UNKNOWN_PHY_ID; - phyPresent[i] = true; - } - } - } - } - } - return IX_SUCCESS; -} - -/************************************************************ - * - * Configure the PHY at the specified address - * - */ -PUBLIC IX_STATUS -ixEthMiiPhyConfig(UINT32 phyAddr, - BOOL speed100, - BOOL fullDuplex, - BOOL autonegotiate) -{ - UINT16 regval=0; - - /* parameter check */ - if ((phyAddr < IXP425_ETH_ACC_MII_MAX_ADDR) && - (ixEthMiiPhyId[phyAddr] != IX_ETH_MII_INVALID_PHY_ID)) - { - /* - * set the control register - */ - if(autonegotiate) - { - regval |= IX_ETH_MII_CR_AUTO_EN | IX_ETH_MII_CR_RESTART; - } - else - { - if(speed100) - { - regval |= IX_ETH_MII_CR_100; - } - if(fullDuplex) - { - regval |= IX_ETH_MII_CR_FDX; - } - } /* end of if-else() */ - if (ixEthAccMiiWriteRtn(phyAddr, - IX_ETH_MII_CTRL_REG, - regval) == IX_ETH_ACC_SUCCESS) - { - return IX_SUCCESS; - } - } /* end of if(phyAddr) */ - return IX_FAIL; -} - -/****************************************************************** - * - * Enable the PHY Loopback at the specified address - */ -PUBLIC IX_STATUS -ixEthMiiPhyLoopbackEnable (UINT32 phyAddr) -{ - UINT16 regval ; - - if ((phyAddr < IXP425_ETH_ACC_MII_MAX_ADDR) && - (IX_ETH_MII_INVALID_PHY_ID != ixEthMiiPhyId[phyAddr])) - { - /* read/write the control register */ - if(ixEthAccMiiReadRtn (phyAddr, - IX_ETH_MII_CTRL_REG, - ®val) - == IX_ETH_ACC_SUCCESS) - { - if(ixEthAccMiiWriteRtn (phyAddr, - IX_ETH_MII_CTRL_REG, - regval | IX_ETH_MII_CR_LOOPBACK) - == IX_ETH_ACC_SUCCESS) - { - return IX_SUCCESS; - } - } - } - return IX_FAIL; -} - -/****************************************************************** - * - * Disable the PHY Loopback at the specified address - */ -PUBLIC IX_STATUS -ixEthMiiPhyLoopbackDisable (UINT32 phyAddr) -{ - UINT16 regval ; - - if ((phyAddr < IXP425_ETH_ACC_MII_MAX_ADDR) && - (IX_ETH_MII_INVALID_PHY_ID != ixEthMiiPhyId[phyAddr])) - { - /* read/write the control register */ - if(ixEthAccMiiReadRtn (phyAddr, - IX_ETH_MII_CTRL_REG, - ®val) - == IX_ETH_ACC_SUCCESS) - { - if(ixEthAccMiiWriteRtn (phyAddr, - IX_ETH_MII_CTRL_REG, - regval & (~IX_ETH_MII_CR_LOOPBACK)) - == IX_ETH_ACC_SUCCESS) - { - return IX_SUCCESS; - } - } - } - return IX_FAIL; -} - -/****************************************************************** - * - * Reset the PHY at the specified address - */ -PUBLIC IX_STATUS -ixEthMiiPhyReset(UINT32 phyAddr) -{ - UINT32 timeout; - UINT16 regval; - - if ((phyAddr < IXP425_ETH_ACC_MII_MAX_ADDR) && - (ixEthMiiPhyId[phyAddr] != IX_ETH_MII_INVALID_PHY_ID)) - { - if ((ixEthMiiPhyId[phyAddr] == IX_ETH_MII_LXT971_PHY_ID) || - (ixEthMiiPhyId[phyAddr] == IX_ETH_MII_LXT972_PHY_ID) || - (ixEthMiiPhyId[phyAddr] == IX_ETH_MII_LXT973_PHY_ID) || - (ixEthMiiPhyId[phyAddr] == IX_ETH_MII_LXT973A3_PHY_ID) || - (ixEthMiiPhyId[phyAddr] == IX_ETH_MII_LXT9785_PHY_ID) - ) - { - /* use the control register to reset the phy */ - ixEthAccMiiWriteRtn(phyAddr, - IX_ETH_MII_CTRL_REG, - IX_ETH_MII_CR_RESET); - - /* poll until the reset bit is cleared */ - timeout = 0; - do - { - ixOsalSleep (IX_ETH_MII_RESET_POLL_MS); - - /* read the control register and check for timeout */ - ixEthAccMiiReadRtn(phyAddr, - IX_ETH_MII_CTRL_REG, - ®val); - if ((regval & IX_ETH_MII_CR_RESET) == 0) - { - /* timeout bit is self-cleared */ - break; - } - timeout += IX_ETH_MII_RESET_POLL_MS; - } - while (timeout < IX_ETH_MII_RESET_DELAY_MS); - - /* check for timeout */ - if (timeout >= IX_ETH_MII_RESET_DELAY_MS) - { - ixEthAccMiiWriteRtn(phyAddr, IX_ETH_MII_CTRL_REG, - IX_ETH_MII_CR_NORM_EN); - return IX_FAIL; - } - - return IX_SUCCESS; - } /* end of if(ixEthMiiPhyId) */ - else if (ixEthMiiPhyId[phyAddr] == IX_ETH_MII_KS8995_PHY_ID) - { - /* reset bit is reserved, just reset the control register */ - ixEthAccMiiWriteRtn(phyAddr, IX_ETH_MII_CTRL_REG, - IX_ETH_MII_CR_NORM_EN); - return IX_SUCCESS; - } - else - { - /* unknown PHY, set the control register reset bit, - * wait 2 s. and clear the control register. - */ - ixEthAccMiiWriteRtn(phyAddr, IX_ETH_MII_CTRL_REG, - IX_ETH_MII_CR_RESET); - - ixOsalSleep (IX_ETH_MII_RESET_DELAY_MS); - - ixEthAccMiiWriteRtn(phyAddr, IX_ETH_MII_CTRL_REG, - IX_ETH_MII_CR_NORM_EN); - return IX_SUCCESS; - } /* end of if-else(ixEthMiiPhyId) */ - } /* end of if(phyAddr) */ - return IX_FAIL; -} - -/***************************************************************** - * - * Link state query functions - */ - -PUBLIC IX_STATUS -ixEthMiiLinkStatus(UINT32 phyAddr, - BOOL *linkUp, - BOOL *speed100, - BOOL *fullDuplex, - BOOL *autoneg) -{ - UINT16 ctrlRegval, statRegval, regval, regval4, regval5; - - /* check the parameters */ - if ((linkUp == NULL) || - (speed100 == NULL) || - (fullDuplex == NULL) || - (autoneg == NULL)) - { - return IX_FAIL; - } - - *linkUp = false; - *speed100 = false; - *fullDuplex = false; - *autoneg = false; - - if ((phyAddr < IXP425_ETH_ACC_MII_MAX_ADDR) && - (ixEthMiiPhyId[phyAddr] != IX_ETH_MII_INVALID_PHY_ID)) - { - if ((ixEthMiiPhyId[phyAddr] == IX_ETH_MII_LXT971_PHY_ID) || - (ixEthMiiPhyId[phyAddr] == IX_ETH_MII_LXT972_PHY_ID) || - (ixEthMiiPhyId[phyAddr] == IX_ETH_MII_LXT9785_PHY_ID) - ) - { - /* --------------------------------------------------*/ - /* Retrieve information from PHY specific register */ - /* --------------------------------------------------*/ - if (ixEthAccMiiReadRtn(phyAddr, - IX_ETH_MII_STAT2_REG, - ®val) != IX_ETH_ACC_SUCCESS) - { - return IX_FAIL; - } - *linkUp = ((regval & IX_ETH_MII_SR2_LINK) != 0); - *speed100 = ((regval & IX_ETH_MII_SR2_100) != 0); - *fullDuplex = ((regval & IX_ETH_MII_SR2_FD) != 0); - *autoneg = ((regval & IX_ETH_MII_SR2_AUTO) != 0); - return IX_SUCCESS; - } /* end of if(ixEthMiiPhyId) */ - else - { - /* ----------------------------------------------------*/ - /* Retrieve information from status and ctrl registers */ - /* ----------------------------------------------------*/ - if (ixEthAccMiiReadRtn(phyAddr, - IX_ETH_MII_CTRL_REG, - &ctrlRegval) != IX_ETH_ACC_SUCCESS) - { - return IX_FAIL; - } - ixEthAccMiiReadRtn(phyAddr, IX_ETH_MII_STAT_REG, &statRegval); - - *linkUp = ((statRegval & IX_ETH_MII_SR_LINK_STATUS) != 0); - if (*linkUp) - { - *autoneg = ((ctrlRegval & IX_ETH_MII_CR_AUTO_EN) != 0) && - ((statRegval & IX_ETH_MII_SR_AUTO_SEL) != 0) && - ((statRegval & IX_ETH_MII_SR_AUTO_NEG) != 0); - - if (*autoneg) - { - /* mask the current stat values with the capabilities */ - ixEthAccMiiReadRtn(phyAddr, IX_ETH_MII_AN_ADS_REG, ®val4); - ixEthAccMiiReadRtn(phyAddr, IX_ETH_MII_AN_PRTN_REG, ®val5); - /* merge the flags from the 3 registers */ - regval = (statRegval & ((regval4 & regval5) << 6)); - /* initialise from status register values */ - if ((regval & IX_ETH_MII_SR_TX_FULL_DPX) != 0) - { - /* 100 Base X full dplx */ - *speed100 = true; - *fullDuplex = true; - return IX_SUCCESS; - } - if ((regval & IX_ETH_MII_SR_TX_HALF_DPX) != 0) - { - /* 100 Base X half dplx */ - *speed100 = true; - return IX_SUCCESS; - } - if ((regval & IX_ETH_MII_SR_10T_FULL_DPX) != 0) - { - /* 10 mb full dplx */ - *fullDuplex = true; - return IX_SUCCESS; - } - if ((regval & IX_ETH_MII_SR_10T_HALF_DPX) != 0) - { - /* 10 mb half dplx */ - return IX_SUCCESS; - } - } /* end of if(autoneg) */ - else - { - /* autonegotiate not complete, return setup parameters */ - *speed100 = ((ctrlRegval & IX_ETH_MII_CR_100) != 0); - *fullDuplex = ((ctrlRegval & IX_ETH_MII_CR_FDX) != 0); - } - } /* end of if(linkUp) */ - } /* end of if-else(ixEthMiiPhyId) */ - } /* end of if(phyAddr) */ - else - { - return IX_FAIL; - } /* end of if-else(phyAddr) */ - return IX_SUCCESS; -} - -/***************************************************************** - * - * Link state display functions - */ - -PUBLIC IX_STATUS -ixEthMiiPhyShow (UINT32 phyAddr) -{ - BOOL linkUp, speed100, fullDuplex, autoneg; - UINT16 cregval; - UINT16 sregval; - - - ixEthAccMiiReadRtn(phyAddr, IX_ETH_MII_STAT_REG, &sregval); - ixEthAccMiiReadRtn(phyAddr, IX_ETH_MII_CTRL_REG, &cregval); - - /* get link information */ - if (ixEthMiiLinkStatus(phyAddr, - &linkUp, - &speed100, - &fullDuplex, - &autoneg) != IX_ETH_ACC_SUCCESS) - { - printf("PHY Status unknown\n"); - return IX_FAIL; - } - - printf("PHY ID [phyAddr]: %8.8x\n",ixEthMiiPhyId[phyAddr]); - printf( " Status reg: %4.4x\n",sregval); - printf( " control reg: %4.4x\n",cregval); - /* display link information */ - printf("PHY Status:\n"); - printf(" Link is %s\n", - (linkUp ? "Up" : "Down")); - if((sregval & IX_ETH_MII_SR_REMOTE_FAULT) != 0) - { - printf(" Remote fault detected\n"); - } - printf(" Auto Negotiation %s\n", - (autoneg ? "Completed" : "Not Completed")); - - printf("PHY Configuration:\n"); - printf(" Speed %sMb/s\n", - (speed100 ? "100" : "10")); - printf(" %s Duplex\n", - (fullDuplex ? "Full" : "Half")); - printf(" Auto Negotiation %s\n", - (autoneg ? "Enabled" : "Disabled")); - return IX_SUCCESS; -} - |