| /******************************************************************************* |
| Copyright (C) Marvell International Ltd. and its affiliates |
| |
| This software file (the "File") is owned and distributed by Marvell |
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| ******************************************************************************** |
| 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. |
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| ******************************************************************************** |
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| |
| 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 |
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| WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY |
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| 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: |
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| * Redistributions of source code must retain the above copyright notice, |
| this list of conditions and the following disclaimer. |
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| * 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. |
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| * Neither the name of Marvell nor the names of its contributors may be |
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| 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 |
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| (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 "mvPciIf.h" |
| #include "mvSysPexApi.h" |
| |
| /* #if defined(MV_INCLUDE_PCI) */ |
| /* #include "ctrlEnv/sys/mvSysPci.h" */ |
| /* #endif */ |
| |
| /* defines */ |
| #ifdef MV_DEBUG |
| #define DB(x) x |
| #else |
| #define DB(x) |
| #endif |
| |
| /******************************************************************************* |
| * mvPciInit - Initialize PCI interfaces |
| * |
| * DESCRIPTION: |
| * |
| * INPUT: |
| * None |
| * |
| * OUTPUT: |
| * None |
| * |
| * RETURN: |
| * MV_OK if function success otherwise MV_ERROR or MV_BAD_PARAM |
| * |
| *******************************************************************************/ |
| MV_STATUS mvPciIfInit(MV_U32 pciIf, PCI_IF_MODE pciIfmode) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { |
| #if defined(MV_INCLUDE_PCI) |
| |
| MV_PCI_MOD pciMod; |
| |
| if (PCI_IF_MODE_HOST == pciIfmode) { |
| pciMod = MV_PCI_MOD_HOST; |
| } else if (PCI_IF_MODE_DEVICE == pciIfmode) { |
| pciMod = MV_PCI_MOD_DEVICE; |
| } else { |
| mvOsPrintf("%s: ERROR!!! Bus %d mode %d neither host nor device!\n", |
| __func__, pciIf, pciIfmode); |
| return MV_FAIL; |
| } |
| |
| return mvPciInit(pciIf - MV_PCI_START_IF, pciMod); |
| #else |
| return MV_OK; |
| #endif |
| } else if (PCI_IF_TYPE_PEX == pciIfType) { |
| #if defined(MV_INCLUDE_PEX) |
| |
| MV_PEX_TYPE pexType; |
| |
| if (PCI_IF_MODE_HOST == pciIfmode) { |
| pexType = MV_PEX_ROOT_COMPLEX; |
| } else if (PCI_IF_MODE_DEVICE == pciIfmode) { |
| pexType = MV_PEX_END_POINT; |
| } else { |
| mvOsPrintf("%s: ERROR!!! Bus %d type %d neither root complex nor" |
| " end point\n", __func__, pciIf, pciIfmode); |
| return MV_FAIL; |
| } |
| return mvSysPexInit(pciIf - MV_PEX_START_IF, pexType); |
| |
| #else |
| return MV_OK; |
| #endif |
| |
| } else { |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| } |
| |
| return MV_FAIL; |
| } |
| |
| /* PCI configuration space read write */ |
| /******************************************************************************* |
| * mvPciConfigRead - Read from configuration space |
| * |
| * DESCRIPTION: |
| * This function performs a 32 bit read from PCI 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 mvPciLocalBusNumGet(). Other bus numbers |
| * will result configuration transaction of type 1 (over bridge). |
| * |
| * INPUT: |
| * pciIf - PCI interface number. |
| * bus - PCI segment bus number. |
| * dev - PCI device number. |
| * func - Function number. |
| * regOffs - Register offset. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * 32bit register data, 0xffffffff on error |
| * |
| *******************************************************************************/ |
| MV_U32 mvPciIfConfigRead(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_U32 func, MV_U32 regOff) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { |
| #if defined(MV_INCLUDE_PCI) |
| return mvPciConfigRead(pciIf - MV_PCI_START_IF, bus, dev, func, regOff); |
| #else |
| return 0xffffffff; |
| #endif |
| } else if (PCI_IF_TYPE_PEX == pciIfType) { |
| #if defined(MV_INCLUDE_PEX) |
| return mvPexConfigRead(pciIf - MV_PEX_START_IF, bus, dev, func, regOff); |
| #else |
| return 0xffffffff; |
| #endif |
| |
| } else { |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| } |
| |
| return 0; |
| } |
| |
| /******************************************************************************* |
| * mvPciConfigWrite - Write to configuration space |
| * |
| * DESCRIPTION: |
| * This function performs a 32 bit write to PCI 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 mvPciLocalBusNumGet(). Other bus numbers |
| * will result configuration transaction of type 1 (over bridge). |
| * |
| * INPUT: |
| * pciIf - PCI interface number. |
| * bus - PCI segment bus number. |
| * dev - PCI 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 mvPciIfConfigWrite(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_U32 func, MV_U32 regOff, MV_U32 data) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { |
| #if defined(MV_INCLUDE_PCI) |
| return mvPciConfigWrite(pciIf - MV_PCI_START_IF, bus, dev, func, regOff, data); |
| #else |
| return MV_OK; |
| #endif |
| } else if (PCI_IF_TYPE_PEX == pciIfType) { |
| #if defined(MV_INCLUDE_PEX) |
| return mvPexConfigWrite(pciIf - MV_PEX_START_IF, bus, dev, func, regOff, data); |
| #else |
| return MV_OK; |
| #endif |
| |
| } else { |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| } |
| |
| return MV_FAIL; |
| } |
| |
| /******************************************************************************* |
| * mvPciMasterEnable - Enable/disale PCI interface master transactions. |
| * |
| * DESCRIPTION: |
| * This function performs read modified write to PCI command status |
| * (offset 0x4) to set/reset bit 2. After this bit is set, the PCI |
| * master is allowed to gain ownership on the bus, otherwise it is |
| * incapable to do so. |
| * |
| * INPUT: |
| * pciIf - PCI interface number. |
| * enable - Enable/disable parameter. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK |
| * |
| *******************************************************************************/ |
| MV_STATUS mvPciIfMasterEnable(MV_U32 pciIf, MV_BOOL enable) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { |
| #if defined(MV_INCLUDE_PCI) |
| return mvPciMasterEnable(pciIf - MV_PCI_START_IF, enable); |
| #else |
| return MV_OK; |
| #endif |
| } else if (PCI_IF_TYPE_PEX == pciIfType) { |
| #if defined(MV_INCLUDE_PEX) |
| return mvPexMasterEnable(pciIf - MV_PEX_START_IF, enable); |
| #else |
| return MV_OK; |
| #endif |
| } else { |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| } |
| |
| return MV_FAIL; |
| } |
| |
| /******************************************************************************* |
| * mvPciSlaveEnable - Enable/disale PCI interface slave transactions. |
| * |
| * DESCRIPTION: |
| * This function performs read modified write to PCI command status |
| * (offset 0x4) to set/reset bit 0 and 1. After those bits are set, |
| * the PCI slave is allowed to respond to PCI IO space access (bit 0) |
| * and PCI memory space access (bit 1). |
| * |
| * INPUT: |
| * pciIf - PCI interface number. |
| * dev - PCI device number. |
| * enable - Enable/disable parameter. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK |
| * |
| *******************************************************************************/ |
| MV_STATUS mvPciIfSlaveEnable(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_BOOL enable) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { |
| #if defined(MV_INCLUDE_PCI) |
| return mvPciSlaveEnable(pciIf - MV_PCI_START_IF, bus, dev, enable); |
| #else |
| return MV_OK; |
| #endif |
| } else if (PCI_IF_TYPE_PEX == pciIfType) { |
| #if defined(MV_INCLUDE_PEX) |
| return mvPexSlaveEnable(pciIf - MV_PEX_START_IF, bus, dev, enable); |
| #else |
| return MV_OK; |
| #endif |
| } else { |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| } |
| |
| return MV_FAIL; |
| } |
| |
| /******************************************************************************* |
| * mvPciLocalBusNumSet - Set PCI interface local bus number. |
| * |
| * DESCRIPTION: |
| * This function sets given PCI interface its local bus number. |
| * Note: In case the PCI interface is PCI-X, the information is read-only. |
| * |
| * INPUT: |
| * pciIf - PCI interface number. |
| * busNum - Bus number. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * MV_NOT_ALLOWED in case PCI interface is PCI-X. |
| * MV_BAD_PARAM on bad parameters, otherwise MV_OK |
| * |
| *******************************************************************************/ |
| MV_STATUS mvPciIfLocalBusNumSet(MV_U32 pciIf, MV_U32 busNum) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { |
| #if defined(MV_INCLUDE_PCI) |
| return mvPciLocalBusNumSet(pciIf - MV_PCI_START_IF, busNum); |
| #else |
| return MV_OK; |
| #endif |
| } else if (PCI_IF_TYPE_PEX == pciIfType) { |
| #if defined(MV_INCLUDE_PEX) |
| return mvPexLocalBusNumSet(pciIf - MV_PEX_START_IF, busNum); |
| #else |
| return MV_OK; |
| #endif |
| } else { |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| } |
| |
| return MV_FAIL; |
| } |
| |
| /******************************************************************************* |
| * mvPciLocalBusNumGet - Get PCI interface local bus number. |
| * |
| * DESCRIPTION: |
| * This function gets the local bus number of a given PCI interface. |
| * |
| * INPUT: |
| * pciIf - PCI interface number. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * Local bus number.0xffffffff on Error |
| * |
| *******************************************************************************/ |
| MV_U32 mvPciIfLocalBusNumGet(MV_U32 pciIf) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { |
| #if defined(MV_INCLUDE_PCI) |
| return mvPciLocalBusNumGet(pciIf - MV_PCI_START_IF); |
| #else |
| return 0xFFFFFFFF; |
| #endif |
| } else if (PCI_IF_TYPE_PEX == pciIfType) { |
| #if defined(MV_INCLUDE_PEX) |
| return mvPexLocalBusNumGet(pciIf - MV_PEX_START_IF); |
| #else |
| return 0xFFFFFFFF; |
| #endif |
| |
| } else { |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| } |
| |
| return 0; |
| } |
| |
| /******************************************************************************* |
| * mvPciLocalDevNumSet - Set PCI interface local device number. |
| * |
| * DESCRIPTION: |
| * This function sets given PCI interface its local device number. |
| * Note: In case the PCI interface is PCI-X, the information is read-only. |
| * |
| * INPUT: |
| * pciIf - PCI interface number. |
| * devNum - Device number. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * MV_NOT_ALLOWED in case PCI interface is PCI-X. |
| * MV_BAD_PARAM on bad parameters, otherwise MV_OK |
| * |
| *******************************************************************************/ |
| MV_STATUS mvPciIfLocalDevNumSet(MV_U32 pciIf, MV_U32 devNum) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { |
| #if defined(MV_INCLUDE_PCI) |
| return mvPciLocalDevNumSet(pciIf - MV_PCI_START_IF, devNum); |
| #else |
| return MV_OK; |
| #endif |
| } else if (PCI_IF_TYPE_PEX == pciIfType) { |
| #if defined(MV_INCLUDE_PEX) |
| return mvPexLocalDevNumSet(pciIf - MV_PEX_START_IF, devNum); |
| #else |
| return MV_OK; |
| #endif |
| } else { |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| } |
| |
| return MV_FAIL; |
| } |
| |
| /******************************************************************************* |
| * mvPciLocalDevNumGet - Get PCI interface local device number. |
| * |
| * DESCRIPTION: |
| * This function gets the local device number of a given PCI interface. |
| * |
| * INPUT: |
| * pciIf - PCI interface number. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * Local device number. 0xffffffff on Error |
| * |
| *******************************************************************************/ |
| MV_U32 mvPciIfLocalDevNumGet(MV_U32 pciIf) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) { |
| #if defined(MV_INCLUDE_PCI) |
| return mvPciLocalDevNumGet(pciIf - MV_PCI_START_IF); |
| #else |
| return 0xFFFFFFFF; |
| #endif |
| } else if (PCI_IF_TYPE_PEX == pciIfType) { |
| #if defined(MV_INCLUDE_PEX) |
| return mvPexLocalDevNumGet(pciIf - MV_PEX_START_IF); |
| #else |
| return 0xFFFFFFFF; |
| #endif |
| |
| } else { |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| } |
| |
| return 0; |
| } |
| |
| /******************************************************************************* |
| * mvPciIfTypeGet - |
| * |
| * DESCRIPTION: |
| * |
| * INPUT: |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * |
| *******************************************************************************/ |
| PCI_IF_TYPE mvPciIfTypeGet(MV_U32 pciIf) |
| { |
| if ((pciIf >= MV_PCI_START_IF) && (pciIf < MV_PCI_MAX_IF + MV_PCI_START_IF)) |
| return PCI_IF_TYPE_CONVEN_PCIX; |
| else if ((pciIf >= MV_PEX_START_IF) && (pciIf < MV_PEX_MAX_IF + MV_PEX_START_IF)) |
| return PCI_IF_TYPE_PEX; |
| else |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| |
| return 0xffffffff; |
| } |
| |
| /******************************************************************************* |
| * mvPciIfTypeGet - |
| * |
| * DESCRIPTION: |
| * |
| * INPUT: |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * |
| *******************************************************************************/ |
| MV_U32 mvPciRealIfNumGet(MV_U32 pciIf) |
| { |
| PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); |
| |
| if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) |
| return (pciIf - MV_PCI_START_IF); |
| else if (PCI_IF_TYPE_PEX == pciIfType) |
| return (pciIf - MV_PEX_START_IF); |
| else |
| mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf); |
| |
| return 0xffffffff; |
| } |
