diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pex/mvPex.c')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pex/mvPex.c | 1143 |
1 files changed, 1143 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pex/mvPex.c b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pex/mvPex.c new file mode 100644 index 000000000..068aac2bf --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pex/mvPex.c @@ -0,0 +1,1143 @@ +/******************************************************************************* +Copyright (C) Marvell International Ltd. and its affiliates + +This software file (the "File") is owned and distributed by Marvell +International Ltd. and/or its affiliates ("Marvell") under the following +alternative licensing terms. Once you have made an election to distribute the +File under one of the following license alternatives, please (i) delete this +introductory statement regarding license alternatives, (ii) delete the two +license alternatives that you have not elected to use and (iii) preserve the +Marvell copyright notice above. + +******************************************************************************** +Marvell Commercial License Option + +If you received this File from Marvell and you have entered into a commercial +license agreement (a "Commercial License") with Marvell, the File is licensed +to you under the terms of the applicable Commercial License. + +******************************************************************************** +Marvell GPL License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File in accordance with the terms and conditions of the General +Public License Version 2, June 1991 (the "GPL License"), a copy of which is +available along with the File in the license.txt file or by writing to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or +on the worldwide web at http://www.gnu.org/licenses/gpl.txt. + +THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED +WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY +DISCLAIMED. The GPL License provides additional details about this warranty +disclaimer. +******************************************************************************** +Marvell BSD License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File under the following licensing terms. +Redistribution and use in source and binary forms, with or without modification, +are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + * 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. + + * Neither the name of Marvell nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + +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. + +*******************************************************************************/ + +#include "pex/mvPex.h" + +#include "ctrlEnv/mvCtrlEnvLib.h" + +/* defines */ +#ifdef MV_DEBUG +#define DB(x) x +#else +#define DB(x) +#endif + +MV_STATUS mvPexHalInit(MV_U32 pexIf, MV_PEX_TYPE pexType) +{ + MV_PEX_MODE pexMode; + MV_U32 regVal; + MV_U32 status; + + /* First implement Guideline (GL# PCI Express-2) Wrong Default Value */ + /* to Transmitter Output Current (TXAMP) Relevant for: 88F5181-A1/B0/B1 */ + /* and 88F5281-B0 and above, 88F5182, 88F5082, 88F5181L, 88F6082/L */ + + if ((mvCtrlModelGet() != MV_1281_DEV_ID) && + (mvCtrlModelGet() != MV_6281_DEV_ID) && + (mvCtrlModelGet() != MV_6192_DEV_ID) && + (mvCtrlModelGet() != MV_6190_DEV_ID) && + (mvCtrlModelGet() != MV_6180_DEV_ID) && + (mvCtrlModelGet() != MV_6183_DEV_ID) && + (mvCtrlModelGet() != MV_6183L_DEV_ID) && + (mvCtrlModelGet() != MV_78100_DEV_ID) && + (mvCtrlModelGet() != MV_78200_DEV_ID) && + (mvCtrlModelGet() != MV_76100_DEV_ID) && + (mvCtrlModelGet() != MV_78XX0_DEV_ID)) + { + + /* Read current value of TXAMP */ + MV_REG_WRITE(0x41b00, 0x80820000); /* Write the read command */ + + regVal = MV_REG_READ(0x41b00); /* Extract the data */ + + /* Prepare new data for write */ + regVal &= ~0x7; /* Clear bits [2:0] */ + regVal |= 0x4; /* Set the new value */ + regVal &= ~0x80000000; /* Set "write" command */ + MV_REG_WRITE(0x41b00, regVal); /* Write the write command */ + + } + else + { + /* Implement 1.0V termination GL for 88F1281 device only */ + /* BIT0 - Common mode feedback */ + /* BIT3 - TxBuf, extra drive for 1.0V termination */ + if (mvCtrlModelGet() == MV_1281_DEV_ID) + { + MV_REG_WRITE(0x41b00, 0x80860000); /* Write the read command */ + regVal = MV_REG_READ(0x41b00); /* Extract the data */ + regVal |= (BIT0 | BIT3); + regVal &= ~0x80000000; /* Set "write" command */ + MV_REG_WRITE(0x41b00, regVal); /* Write the write command */ + + MV_REG_WRITE(0x31b00, 0x80860000); /* Write the read command */ + regVal = MV_REG_READ(0x31b00); /* Extract the data */ + regVal |= (BIT0 | BIT3); + regVal &= ~0x80000000; /* Set "write" command */ + MV_REG_WRITE(0x31b00, regVal); /* Write the write command */ + } + } + + if( mvPexModeGet(pexIf, &pexMode) != MV_OK) + { + mvOsPrintf("PEX init ERR. mvPexModeGet failed (pexType=%d)\n",pexMode.pexType); + return MV_ERROR; + } + + /* Check that required PEX type is the one set in reset time */ + if (pexType != pexMode.pexType) + { + /* No Link. Shut down the Phy */ + mvPexPowerDown(pexIf); + mvOsPrintf("PEX init ERR. PEX type sampled mismatch (%d,%d)\n",pexType,pexMode.pexType); + return MV_ERROR; + } + + if (MV_PEX_ROOT_COMPLEX == pexType) + { + mvPexLocalBusNumSet(pexIf, PEX_HOST_BUS_NUM(pexIf)); + mvPexLocalDevNumSet(pexIf, PEX_HOST_DEV_NUM(pexIf)); + + /* Local device master Enable */ + mvPexMasterEnable(pexIf, MV_TRUE); + + /* Local device slave Enable */ + mvPexSlaveEnable(pexIf, mvPexLocalBusNumGet(pexIf), + mvPexLocalDevNumGet(pexIf), MV_TRUE); + /* Interrupt disable */ + status = MV_REG_READ(PEX_CFG_DIRECT_ACCESS(pexIf, PEX_STATUS_AND_COMMAND)); + status |= PXSAC_INT_DIS; + MV_REG_WRITE(PEX_CFG_DIRECT_ACCESS(pexIf, PEX_STATUS_AND_COMMAND), status); + } + + /* now wait 500 ms to be sure the link is valid (spec compliant) */ + mvOsDelay(500); + /* Check if we have link */ + if (MV_REG_READ(PEX_STATUS_REG(pexIf)) & PXSR_DL_DOWN) + { + mvOsPrintf("PEX%d interface detected no Link.\n",pexIf); + return MV_NO_SUCH; + } + + if (MV_PEX_WITDH_X1 == pexMode.pexWidth) + { + mvOsPrintf("PEX%d interface detected Link X1\n",pexIf); + } + else + { + mvOsPrintf("PEX%d interface detected Link X4\n",pexIf); + } + +#ifdef PCIE_VIRTUAL_BRIDGE_SUPPORT + mvPexVrtBrgInit(pexIf); +#endif + return MV_OK; +} + +/******************************************************************************* +* mvPexModeGet - Get Pex Mode +* +* DESCRIPTION: +* +* INPUT: +* pexIf - PEX interface number. +* +* OUTPUT: +* pexMode - Pex mode structure +* +* RETURN: +* MV_OK on success , MV_ERROR otherwise +* +*******************************************************************************/ +MV_U32 mvPexModeGet(MV_U32 pexIf,MV_PEX_MODE *pexMode) +{ + MV_U32 pexData; + + /* Parameter checking */ + if (PEX_DEFAULT_IF != pexIf) + { + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexModeGet: ERR. Invalid PEX interface %d\n",pexIf); + return MV_ERROR; + } + } + + pexData = MV_REG_READ(PEX_CTRL_REG(pexIf)); + + switch (pexData & PXCR_DEV_TYPE_CTRL_MASK) + { + case PXCR_DEV_TYPE_CTRL_CMPLX: + pexMode->pexType = MV_PEX_ROOT_COMPLEX; + break; + case PXCR_DEV_TYPE_CTRL_POINT: + pexMode->pexType = MV_PEX_END_POINT; + break; + + } + + /* Check if we have link */ + if (MV_REG_READ(PEX_STATUS_REG(pexIf)) & PXSR_DL_DOWN) + { + pexMode->pexLinkUp = MV_FALSE; + + /* If there is no link, the auto negotiation data is worthless */ + pexMode->pexWidth = MV_PEX_WITDH_INVALID; + } + else + { + pexMode->pexLinkUp = MV_TRUE; + + /* We have link. The link width is now valid */ + pexData = MV_REG_READ(PEX_CFG_DIRECT_ACCESS(pexIf, PEX_LINK_CTRL_STAT_REG)); + pexMode->pexWidth = ((pexData & PXLCSR_NEG_LNK_WDTH_MASK) >> + PXLCSR_NEG_LNK_WDTH_OFFS); + } + + return MV_OK; +} + + +/* PEX configuration space read write */ + +/******************************************************************************* +* mvPexConfigRead - Read from configuration space +* +* DESCRIPTION: +* This function performs a 32 bit read from PEX configuration space. +* It supports both type 0 and type 1 of Configuration Transactions +* (local and over bridge). In order to read from local bus segment, use +* bus number retrieved from mvPexLocalBusNumGet(). Other bus numbers +* will result configuration transaction of type 1 (over bridge). +* +* INPUT: +* pexIf - PEX interface number. +* bus - PEX segment bus number. +* dev - PEX device number. +* func - Function number. +* regOffs - Register offset. +* +* OUTPUT: +* None. +* +* RETURN: +* 32bit register data, 0xffffffff on error +* +*******************************************************************************/ +MV_U32 mvPexConfigRead (MV_U32 pexIf, MV_U32 bus, MV_U32 dev, MV_U32 func, + MV_U32 regOff) +{ +#if defined(PCIE_VIRTUAL_BRIDGE_SUPPORT) + return mvPexVrtBrgConfigRead (pexIf, bus, dev, func, regOff); +} + +MV_U32 mvPexHwConfigRead (MV_U32 pexIf, MV_U32 bus, MV_U32 dev, MV_U32 func, + MV_U32 regOff) +{ +#endif + MV_U32 pexData = 0; + MV_U32 localDev,localBus; + + /* Parameter checking */ + if (PEX_DEFAULT_IF != pexIf) + { + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexConfigRead: ERR. Invalid PEX interface %d\n",pexIf); + return 0xFFFFFFFF; + } + } + + if (dev >= MAX_PEX_DEVICES) + { + DB(mvOsPrintf("mvPexConfigRead: ERR. device number illigal %d\n", dev)); + return 0xFFFFFFFF; + } + + if (func >= MAX_PEX_FUNCS) + { + DB(mvOsPrintf("mvPexConfigRead: ERR. function num illigal %d\n", func)); + return 0xFFFFFFFF; + } + + if (bus >= MAX_PEX_BUSSES) + { + DB(mvOsPrintf("mvPexConfigRead: ERR. bus number illigal %d\n", bus)); + return MV_ERROR; + } + + DB(mvOsPrintf("mvPexConfigRead: pexIf %d, bus %d, dev %d, func %d, regOff 0x%x\n", + pexIf, bus, dev, func, regOff)); + + localDev = mvPexLocalDevNumGet(pexIf); + localBus = mvPexLocalBusNumGet(pexIf); + + /* Speed up the process. In case on no link, return MV_ERROR */ + if ((dev != localDev) || (bus != localBus)) + { + pexData = MV_REG_READ(PEX_STATUS_REG(pexIf)); + + if ((pexData & PXSR_DL_DOWN)) + { + return MV_ERROR; + } + } + + /* in PCI Express we have only one device number */ + /* and this number is the first number we encounter + else that the localDev*/ + /* spec pex define return on config read/write on any device */ + if (bus == localBus) + { + if (localDev == 0) + { + /* if local dev is 0 then the first number we encounter + after 0 is 1 */ + if ((dev != 1)&&(dev != localDev)) + { + return MV_ERROR; + } + } + else + { + /* if local dev is not 0 then the first number we encounter + is 0 */ + + if ((dev != 0)&&(dev != localDev)) + { + return MV_ERROR; + } + } + if(func != 0 ) /* i.e bridge */ + { + return MV_ERROR; + } + } + + + /* Creating PEX address to be passed */ + pexData = (bus << PXCAR_BUS_NUM_OFFS); + pexData |= (dev << PXCAR_DEVICE_NUM_OFFS); + pexData |= (func << PXCAR_FUNC_NUM_OFFS); + pexData |= (regOff & PXCAR_REG_NUM_MASK); /* lgacy register space */ + /* extended register space */ + pexData |=(((regOff & PXCAR_REAL_EXT_REG_NUM_MASK) >> + PXCAR_REAL_EXT_REG_NUM_OFFS) << PXCAR_EXT_REG_NUM_OFFS); + + pexData |= PXCAR_CONFIG_EN; + + /* Write the address to the PEX configuration address register */ + MV_REG_WRITE(PEX_CFG_ADDR_REG(pexIf), pexData); + + DB(mvOsPrintf("mvPexConfigRead:address pexData=%x ",pexData)); + + + /* In order to let the PEX controller absorbed the address of the read */ + /* transaction we perform a validity check that the address was written */ + if(pexData != MV_REG_READ(PEX_CFG_ADDR_REG(pexIf))) + { + return MV_ERROR; + } + + /* cleaning Master Abort */ + MV_REG_BIT_SET(PEX_CFG_DIRECT_ACCESS(pexIf,PEX_STATUS_AND_COMMAND), + PXSAC_MABORT); +#if 0 + /* Guideline (GL# PCI Express-1) Erroneous Read Data on Configuration */ + /* This guideline is relevant for all devices except of the following devices: + 88F5281-BO and above, 88F5181L-A0 and above, 88F1281 A0 and above + 88F6183 A0 and above, 88F6183L */ + if ( ( (dev != localDev) || (bus != localBus) ) && + ( + !(MV_5281_DEV_ID == mvCtrlModelGet())&& + !((MV_5181_DEV_ID == mvCtrlModelGet())&& (mvCtrlRevGet() >= MV_5181L_A0_REV))&& + !(MV_1281_DEV_ID == mvCtrlModelGet())&& + !(MV_6183_DEV_ID == mvCtrlModelGet())&& + !(MV_6183L_DEV_ID == mvCtrlModelGet())&& + !(MV_6281_DEV_ID == mvCtrlModelGet())&& + !(MV_6192_DEV_ID == mvCtrlModelGet())&& + !(MV_6190_DEV_ID == mvCtrlModelGet())&& + !(MV_6180_DEV_ID == mvCtrlModelGet())&& + !(MV_78XX0_DEV_ID == mvCtrlModelGet()) + )) + { + + /* PCI-Express configuration read work-around */ + + /* we will use one of the Punit (AHBToMbus) windows to access the xbar + and read the data from there */ + /* + Need to configure the 2 free Punit (AHB to MBus bridge) + address decoding windows: + Configure the flash Window to handle Configuration space requests + for PEX0/1: + 1. write 0x7931/0x7941 to the flash window and the size, + 79-xbar attr (pci cfg), 3/4-xbar target (pex0/1), 1-WinEn + 2. write base to flash window + + Configuration transactions from the CPU should write/read the data + to/from address of the form: + addr[31:28] = 0x5 (for PEX0) or 0x6 (for PEX1) + addr[27:24] = extended register number + addr[23:16] = bus number + addr[15:11] = device number + addr[10:8] = function number + addr[7:0] = register number + */ + + #include "ctrlEnv/sys/mvAhbToMbus.h" + { + MV_U32 winNum; + MV_AHB_TO_MBUS_DEC_WIN originWin; + MV_U32 pciAddr=0; + MV_U32 remapLow=0,remapHigh=0; + + /* + We will use DEV_CS2\Flash window for this workarround + */ + + winNum = mvAhbToMbusWinTargetGet(PEX_CONFIG_RW_WA_TARGET); + + /* save remap values if exist */ + if ((1 == winNum)||(0 == winNum)) + { + remapLow = MV_REG_READ(AHB_TO_MBUS_WIN_REMAP_LOW_REG(winNum)); + remapHigh = MV_REG_READ(AHB_TO_MBUS_WIN_REMAP_HIGH_REG(winNum)); + + } + + + /* save the original window values */ + mvAhbToMbusWinGet(winNum,&originWin); + + if (PEX_CONFIG_RW_WA_USE_ORIGINAL_WIN_VALUES) + { + /* set the window as xbar window */ + if (pexIf) + { + MV_REG_WRITE(AHB_TO_MBUS_WIN_CTRL_REG(winNum), + (0x7931 | (((originWin.addrWin.size >> 16)-1) ) << 16)); + } + else + { + MV_REG_WRITE(AHB_TO_MBUS_WIN_CTRL_REG(winNum), + (0x7941 | (((originWin.addrWin.size >> 16)-1) ) << 16)); + } + + MV_REG_WRITE(AHB_TO_MBUS_WIN_BASE_REG(winNum), + originWin.addrWin.baseLow); + + /*pciAddr = originWin.addrWin.baseLow;*/ + pciAddr = (MV_U32)CPU_MEMIO_UNCACHED_ADDR( + (MV_U32)originWin.addrWin.baseLow); + + } + else + { + /* set the window as xbar window */ + if (pexIf) + { + MV_REG_WRITE(AHB_TO_MBUS_WIN_CTRL_REG(winNum), + (0x7931 | (((PEX_CONFIG_RW_WA_SIZE >> 16)-1) ) << 16)); + } + else + { + MV_REG_WRITE(AHB_TO_MBUS_WIN_CTRL_REG(winNum), + (0x7941 | (((PEX_CONFIG_RW_WA_SIZE >> 16)-1) ) << 16)); + } + + MV_REG_WRITE(AHB_TO_MBUS_WIN_BASE_REG(winNum), + PEX_CONFIG_RW_WA_BASE); + + pciAddr = (MV_U32)CPU_MEMIO_UNCACHED_ADDR(PEX_CONFIG_RW_WA_BASE); + } + + + /* remap should be as base */ + if ((1 == winNum)||(0 == winNum)) + { + MV_REG_WRITE(AHB_TO_MBUS_WIN_REMAP_LOW_REG(winNum),pciAddr); + MV_REG_WRITE(AHB_TO_MBUS_WIN_REMAP_HIGH_REG(winNum),0); + + } + + /* extended register space */ + pciAddr |= (bus << 16); + pciAddr |= (dev << 11); + pciAddr |= (func << 8); + pciAddr |= (regOff & PXCAR_REG_NUM_MASK); /* lgacy register space */ + + pexData = *(MV_U32*)pciAddr; + pexData = MV_32BIT_LE(pexData); /* Data always in LE */ + + /* restore the original window values */ + mvAhbToMbusWinSet(winNum,&originWin); + + /* restore original remap values*/ + if ((1 == winNum)||(0 == winNum)) + { + MV_REG_WRITE(AHB_TO_MBUS_WIN_REMAP_LOW_REG(winNum),remapLow); + MV_REG_WRITE(AHB_TO_MBUS_WIN_REMAP_HIGH_REG(winNum),remapHigh); + + } + } + } + else +#endif + { + /* Read the Data returned in the PEX Data register */ + pexData = MV_REG_READ(PEX_CFG_DATA_REG(pexIf)); + + } + + DB(mvOsPrintf("mvPexConfigRead: got : %x \n",pexData)); + + return pexData; + +} + +/******************************************************************************* +* mvPexConfigWrite - Write to configuration space +* +* DESCRIPTION: +* This function performs a 32 bit write to PEX configuration space. +* It supports both type 0 and type 1 of Configuration Transactions +* (local and over bridge). In order to write to local bus segment, use +* bus number retrieved from mvPexLocalBusNumGet(). Other bus numbers +* will result configuration transaction of type 1 (over bridge). +* +* INPUT: +* pexIf - PEX interface number. +* bus - PEX segment bus number. +* dev - PEX device number. +* func - Function number. +* regOffs - Register offset. +* data - 32bit data. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPexConfigWrite(MV_U32 pexIf, MV_U32 bus, MV_U32 dev, + MV_U32 func, MV_U32 regOff, MV_U32 data) +{ +#if defined(PCIE_VIRTUAL_BRIDGE_SUPPORT) + return mvPexVrtBrgConfigWrite (pexIf, bus, dev, func, regOff, data); +} + +MV_STATUS mvPexHwConfigWrite(MV_U32 pexIf, MV_U32 bus, MV_U32 dev, + MV_U32 func, MV_U32 regOff, MV_U32 data) +{ +#endif + MV_U32 pexData = 0; + MV_U32 localDev,localBus; + + /* Parameter checking */ + if (PEX_DEFAULT_IF != pexIf) + { + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexConfigWrite: ERR. Invalid PEX interface %d\n", + pexIf); + return MV_ERROR; + } + } + + if (dev >= MAX_PEX_DEVICES) + { + mvOsPrintf("mvPexConfigWrite: ERR. device number illigal %d\n",dev); + return MV_BAD_PARAM; + } + + if (func >= MAX_PEX_FUNCS) + { + mvOsPrintf("mvPexConfigWrite: ERR. function number illigal %d\n", func); + return MV_ERROR; + } + + if (bus >= MAX_PEX_BUSSES) + { + mvOsPrintf("mvPexConfigWrite: ERR. bus number illigal %d\n", bus); + return MV_ERROR; + } + + + + localDev = mvPexLocalDevNumGet(pexIf); + localBus = mvPexLocalBusNumGet(pexIf); + + + /* in PCI Express we have only one device number other than ourselves*/ + /* and this number is the first number we encounter + else than the localDev that can be any valid dev number*/ + /* pex spec define return on config read/write on any device */ + if (bus == localBus) + { + + if (localDev == 0) + { + /* if local dev is 0 then the first number we encounter + after 0 is 1 */ + if ((dev != 1)&&(dev != localDev)) + { + return MV_ERROR; + } + + } + else + { + /* if local dev is not 0 then the first number we encounter + is 0 */ + + if ((dev != 0)&&(dev != localDev)) + { + return MV_ERROR; + } + } + + + } + + /* if we are not accessing ourselves , then check the link */ + if ((dev != localDev) || (bus != localBus) ) + { + /* workarround */ + /* when no link return MV_ERROR */ + + pexData = MV_REG_READ(PEX_STATUS_REG(pexIf)); + + if ((pexData & PXSR_DL_DOWN)) + { + return MV_ERROR; + } + + } + + pexData =0; + + /* Creating PEX address to be passed */ + pexData |= (bus << PXCAR_BUS_NUM_OFFS); + pexData |= (dev << PXCAR_DEVICE_NUM_OFFS); + pexData |= (func << PXCAR_FUNC_NUM_OFFS); + pexData |= (regOff & PXCAR_REG_NUM_MASK); /* lgacy register space */ + /* extended register space */ + pexData |=(((regOff & PXCAR_REAL_EXT_REG_NUM_MASK) >> + PXCAR_REAL_EXT_REG_NUM_OFFS) << PXCAR_EXT_REG_NUM_OFFS); + pexData |= PXCAR_CONFIG_EN; + + DB(mvOsPrintf("mvPexConfigWrite: If=%x bus=%x func=%x dev=%x regOff=%x data=%x \n", + pexIf,bus,func,dev,regOff,data,pexData) ); + + /* Write the address to the PEX configuration address register */ + MV_REG_WRITE(PEX_CFG_ADDR_REG(pexIf), pexData); + + /* Clear CPU pipe. Important where CPU can perform OOO execution */ + CPU_PIPE_FLUSH; + + /* In order to let the PEX controller absorbed the address of the read */ + /* transaction we perform a validity check that the address was written */ + if(pexData != MV_REG_READ(PEX_CFG_ADDR_REG(pexIf))) + { + return MV_ERROR; + } + + /* Write the Data passed to the PEX Data register */ + MV_REG_WRITE(PEX_CFG_DATA_REG(pexIf), data); + + return MV_OK; + +} + +/******************************************************************************* +* mvPexMasterEnable - Enable/disale PEX interface master transactions. +* +* DESCRIPTION: +* This function performs read modified write to PEX command status +* (offset 0x4) to set/reset bit 2. After this bit is set, the PEX +* master is allowed to gain ownership on the bus, otherwise it is +* incapable to do so. +* +* INPUT: +* pexIf - PEX interface number. +* enable - Enable/disable parameter. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPexMasterEnable(MV_U32 pexIf, MV_BOOL enable) +{ + MV_U32 pexCommandStatus; + MV_U32 localBus; + MV_U32 localDev; + + /* Parameter checking */ + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexMasterEnable: ERR. Invalid PEX interface %d\n", pexIf); + return MV_ERROR; + } + + localBus = mvPexLocalBusNumGet(pexIf); + localDev = mvPexLocalDevNumGet(pexIf); + + pexCommandStatus = MV_REG_READ(PEX_CFG_DIRECT_ACCESS(pexIf, + PEX_STATUS_AND_COMMAND)); + + + if (MV_TRUE == enable) + { + pexCommandStatus |= PXSAC_MASTER_EN; + } + else + { + pexCommandStatus &= ~PXSAC_MASTER_EN; + } + + + MV_REG_WRITE(PEX_CFG_DIRECT_ACCESS(pexIf,PEX_STATUS_AND_COMMAND), + pexCommandStatus); + + return MV_OK; +} + + +/******************************************************************************* +* mvPexSlaveEnable - Enable/disale PEX interface slave transactions. +* +* DESCRIPTION: +* This function performs read modified write to PEX command status +* (offset 0x4) to set/reset bit 0 and 1. After those bits are set, +* the PEX slave is allowed to respond to PEX IO space access (bit 0) +* and PEX memory space access (bit 1). +* +* INPUT: +* pexIf - PEX interface number. +* dev - PEX device number. +* enable - Enable/disable parameter. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPexSlaveEnable(MV_U32 pexIf, MV_U32 bus,MV_U32 dev, MV_BOOL enable) +{ + MV_U32 pexCommandStatus; + MV_U32 RegOffs; + + /* Parameter checking */ + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexSlaveEnable: ERR. Invalid PEX interface %d\n", pexIf); + return MV_BAD_PARAM; + } + if (dev >= MAX_PEX_DEVICES) + { + mvOsPrintf("mvPexLocalDevNumSet: ERR. device number illigal %d\n", dev); + return MV_BAD_PARAM; + + } + + + RegOffs = PEX_STATUS_AND_COMMAND; + + pexCommandStatus = mvPexConfigRead(pexIf, bus, dev, 0, RegOffs); + + if (MV_TRUE == enable) + { + pexCommandStatus |= (PXSAC_IO_EN | PXSAC_MEM_EN); + } + else + { + pexCommandStatus &= ~(PXSAC_IO_EN | PXSAC_MEM_EN); + } + + mvPexConfigWrite(pexIf, bus, dev, 0, RegOffs, pexCommandStatus); + + return MV_OK; + +} + +/******************************************************************************* +* mvPexLocalBusNumSet - Set PEX interface local bus number. +* +* DESCRIPTION: +* This function sets given PEX interface its local bus number. +* Note: In case the PEX interface is PEX-X, the information is read-only. +* +* INPUT: +* pexIf - PEX interface number. +* busNum - Bus number. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_NOT_ALLOWED in case PEX interface is PEX-X. +* MV_BAD_PARAM on bad parameters , +* otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPexLocalBusNumSet(MV_U32 pexIf, MV_U32 busNum) +{ + MV_U32 pexStatus; + MV_U32 localBus; + MV_U32 localDev; + + + /* Parameter checking */ + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexLocalBusNumSet: ERR. Invalid PEX interface %d\n",pexIf); + return MV_BAD_PARAM; + } + if (busNum >= MAX_PEX_BUSSES) + { + mvOsPrintf("mvPexLocalBusNumSet: ERR. bus number illigal %d\n", busNum); + return MV_ERROR; + + } + + localBus = mvPexLocalBusNumGet(pexIf); + localDev = mvPexLocalDevNumGet(pexIf); + + + + pexStatus = MV_REG_READ(PEX_STATUS_REG(pexIf)); + + pexStatus &= ~PXSR_PEX_BUS_NUM_MASK; + + pexStatus |= (busNum << PXSR_PEX_BUS_NUM_OFFS) & PXSR_PEX_BUS_NUM_MASK; + + MV_REG_WRITE(PEX_STATUS_REG(pexIf), pexStatus); + + + return MV_OK; +} + + +/******************************************************************************* +* mvPexLocalBusNumGet - Get PEX interface local bus number. +* +* DESCRIPTION: +* This function gets the local bus number of a given PEX interface. +* +* INPUT: +* pexIf - PEX interface number. +* +* OUTPUT: +* None. +* +* RETURN: +* Local bus number.0xffffffff on Error +* +*******************************************************************************/ +MV_U32 mvPexLocalBusNumGet(MV_U32 pexIf) +{ + MV_U32 pexStatus; + + /* Parameter checking */ + if (PEX_DEFAULT_IF != pexIf) + { + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexLocalBusNumGet: ERR. Invalid PEX interface %d\n",pexIf); + return 0xFFFFFFFF; + } + } + + + pexStatus = MV_REG_READ(PEX_STATUS_REG(pexIf)); + + pexStatus &= PXSR_PEX_BUS_NUM_MASK; + + return (pexStatus >> PXSR_PEX_BUS_NUM_OFFS); + +} + + +/******************************************************************************* +* mvPexLocalDevNumSet - Set PEX interface local device number. +* +* DESCRIPTION: +* This function sets given PEX interface its local device number. +* Note: In case the PEX interface is PEX-X, the information is read-only. +* +* INPUT: +* pexIf - PEX interface number. +* devNum - Device number. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_NOT_ALLOWED in case PEX interface is PEX-X. +* MV_BAD_PARAM on bad parameters , +* otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPexLocalDevNumSet(MV_U32 pexIf, MV_U32 devNum) +{ + MV_U32 pexStatus; + MV_U32 localBus; + MV_U32 localDev; + + /* Parameter checking */ + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexLocalDevNumSet: ERR. Invalid PEX interface %d\n",pexIf); + return MV_BAD_PARAM; + } + if (devNum >= MAX_PEX_DEVICES) + { + mvOsPrintf("mvPexLocalDevNumSet: ERR. device number illigal %d\n", + devNum); + return MV_BAD_PARAM; + + } + + localBus = mvPexLocalBusNumGet(pexIf); + localDev = mvPexLocalDevNumGet(pexIf); + + + pexStatus = MV_REG_READ(PEX_STATUS_REG(pexIf)); + + pexStatus &= ~PXSR_PEX_DEV_NUM_MASK; + + pexStatus |= (devNum << PXSR_PEX_DEV_NUM_OFFS) & PXSR_PEX_DEV_NUM_MASK; + + MV_REG_WRITE(PEX_STATUS_REG(pexIf), pexStatus); + + + return MV_OK; +} + +/******************************************************************************* +* mvPexLocalDevNumGet - Get PEX interface local device number. +* +* DESCRIPTION: +* This function gets the local device number of a given PEX interface. +* +* INPUT: +* pexIf - PEX interface number. +* +* OUTPUT: +* None. +* +* RETURN: +* Local device number. 0xffffffff on Error +* +*******************************************************************************/ +MV_U32 mvPexLocalDevNumGet(MV_U32 pexIf) +{ + MV_U32 pexStatus; + + /* Parameter checking */ + + if (PEX_DEFAULT_IF != pexIf) + { + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexLocalDevNumGet: ERR. Invalid PEX interface %d\n", + pexIf); + return 0xFFFFFFFF; + } + } + + pexStatus = MV_REG_READ(PEX_STATUS_REG(pexIf)); + + pexStatus &= PXSR_PEX_DEV_NUM_MASK; + + return (pexStatus >> PXSR_PEX_DEV_NUM_OFFS); +} + +MV_VOID mvPexPhyRegRead(MV_U32 pexIf, MV_U32 regOffset, MV_U16 *value) +{ + + MV_U32 regAddr; + if (pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexPhyRegRead: ERR. Invalid PEX interface %d\n", pexIf); + return; + } + regAddr = (BIT31 | ((regOffset & 0x3fff) << 16)); + MV_REG_WRITE(PEX_PHY_ACCESS_REG(pexIf), regAddr); + *value = MV_REG_READ(PEX_PHY_ACCESS_REG(pexIf)); +} + + +MV_VOID mvPexPhyRegWrite(MV_U32 pexIf, MV_U32 regOffset, MV_U16 value) +{ + + MV_U32 regAddr; + if(pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexPhyRegWrite: ERR. Invalid PEX interface %d\n", pexIf); + return; + } + regAddr = (((regOffset & 0x3fff) << 16) | value); + MV_REG_WRITE(PEX_PHY_ACCESS_REG(pexIf), regAddr); +} + +/******************************************************************************* +* mvPexActiveStateLinkPMEnable +* +* DESCRIPTION: +* Enable Active Link State Power Management +* +* INPUT: +* pexIf - PEX interface number. +* enable - MV_TRUE to enable ASPM, MV_FALSE to disable. +* +* OUTPUT: +* None +* +* RETURN: +* MV_OK on success , MV_ERROR otherwise +* +*******************************************************************************/ +MV_STATUS mvPexActiveStateLinkPMEnable(MV_U32 pexIf, MV_BOOL enable) +{ + MV_U32 reg; + + if(pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexActiveStateLinkPMEnable: ERR. Invalid PEX interface %d\n", pexIf); + return MV_ERROR; + } + + reg = MV_REG_READ(PEX_PWR_MNG_EXT_REG(pexIf)) & ~PXPMER_L1_ASPM_EN_MASK; + if(enable == MV_TRUE) + reg |= PXPMER_L1_ASPM_EN_MASK; + MV_REG_WRITE(PEX_PWR_MNG_EXT_REG(pexIf), reg); + + /* Enable / Disable L0/1 entry */ + reg = MV_REG_READ(PEX_CFG_DIRECT_ACCESS(pexIf, PEX_LINK_CTRL_STAT_REG)) + & ~PXLCSR_ASPM_CNT_MASK; + if(enable == MV_TRUE) + reg |= PXLCSR_ASPM_CNT_L0S_L1S_ENT_SUPP; + MV_REG_WRITE(PEX_CFG_DIRECT_ACCESS(pexIf, PEX_LINK_CTRL_STAT_REG), reg); + + return MV_OK; +} + + +/******************************************************************************* +* mvPexForceX1 +* +* DESCRIPTION: +* shut down lanes 1-3 if recognize that attached to an x1 end-point +* INPUT: +* pexIf - PEX interface number. +* +* OUTPUT: +* None +* +* RETURN: +* MV_OK on success , MV_ERROR otherwise +* +*******************************************************************************/ +MV_U32 mvPexForceX1(MV_U32 pexIf) +{ + MV_U32 regData = 0; + if(pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexForceX1: ERR. Invalid PEX interface %d\n", pexIf); + return MV_BAD_PARAM; + } + + regData = MV_REG_READ(PEX_CTRL_REG(pexIf)) & ~(PXCR_CONF_LINK_MASK) ; + regData |= PXCR_CONF_LINK_X1; + + MV_REG_WRITE(PEX_CTRL_REG(pexIf), regData); + return MV_OK; +} + +MV_BOOL mvPexIsPowerUp(MV_U32 pexIf) +{ + if(pexIf >= mvCtrlPexMaxIfGet()) + { + mvOsPrintf("mvPexIsPowerUp: ERR. Invalid PEX interface %d\n", pexIf); + return MV_FALSE; + } + return mvCtrlPwrClckGet(PEX_UNIT_ID, pexIf); +} + + +MV_VOID mvPexPowerDown(MV_U32 pexIf) +{ + if ( (mvCtrlModelGet() == MV_78XX0_DEV_ID) || + (mvCtrlModelGet() == MV_76100_DEV_ID) || + (mvCtrlModelGet() == MV_78100_DEV_ID) || + (mvCtrlModelGet() == MV_78200_DEV_ID) ) + { + mvCtrlPwrClckSet(PEX_UNIT_ID, pexIf, MV_FALSE); + } + else + { + MV_REG_WRITE((0x41B00 -(pexIf)*0x10000), 0x20800087); + } +} + + + |