diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pci/mvPci.c')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pci/mvPci.c | 1047 |
1 files changed, 1047 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pci/mvPci.c b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pci/mvPci.c new file mode 100644 index 000000000..4a087343d --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/pci/mvPci.c @@ -0,0 +1,1047 @@ +/******************************************************************************* +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 "pci/mvPci.h" + +#include "ctrlEnv/mvCtrlEnvLib.h" + +/* defines */ +#ifdef MV_DEBUG + #define DB(x) x +#else + #define DB(x) +#endif + + + +MV_VOID mvPciHalInit(MV_U32 pciIf, MV_PCI_MOD pciIfmod) +{ + if (MV_PCI_MOD_HOST == pciIfmod) + { + + mvPciLocalBusNumSet(pciIf, PCI_HOST_BUS_NUM(pciIf)); + mvPciLocalDevNumSet(pciIf, PCI_HOST_DEV_NUM(pciIf)); + + /* Local device master Enable */ + mvPciMasterEnable(pciIf, MV_TRUE); + + /* Local device slave Enable */ + mvPciSlaveEnable(pciIf, mvPciLocalBusNumGet(pciIf), + mvPciLocalDevNumGet(pciIf), MV_TRUE); + } + /* enable CPU-2-PCI ordering */ + MV_REG_BIT_SET(PCI_CMD_REG(0), PCR_CPU_TO_PCI_ORDER_EN); +} + +/******************************************************************************* +* mvPciCommandSet - Set PCI comman register value. +* +* DESCRIPTION: +* This function sets a given PCI interface with its command register +* value. +* +* INPUT: +* pciIf - PCI interface number. +* command - 32bit value to be written to comamnd register. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_BAD_PARAM if pciIf is not in range otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPciCommandSet(MV_U32 pciIf, MV_U32 command) +{ + MV_U32 locBusNum, locDevNum, regVal; + + locBusNum = mvPciLocalBusNumGet(pciIf); + locDevNum = mvPciLocalDevNumGet(pciIf); + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciCommandSet: ERR. Invalid PCI IF num %d\n", pciIf); + return MV_BAD_PARAM; + } + + /* Set command register */ + MV_REG_WRITE(PCI_CMD_REG(pciIf), command); + + /* Upodate device max outstanding split tarnsaction */ + if ((command & PCR_CPU_TO_PCI_ORDER_EN) && + (command & PCR_PCI_TO_CPU_ORDER_EN)) + { + /* Read PCI-X command register */ + regVal = mvPciConfigRead (pciIf, locBusNum, locDevNum, 0, PCIX_COMMAND); + + /* clear bits 22:20 */ + regVal &= 0xff8fffff; + + /* set reset value */ + regVal |= (0x3 << 20); + + /* Write back the value */ + mvPciConfigWrite (pciIf, locBusNum, locDevNum, 0, PCIX_COMMAND, regVal); + } + + return MV_OK; + + +} + + +/******************************************************************************* +* mvPciModeGet - Get PCI interface mode. +* +* DESCRIPTION: +* This function returns the given PCI interface mode. +* +* INPUT: +* pciIf - PCI interface number. +* +* OUTPUT: +* pPciMode - Pointer to PCI mode structure. +* +* RETURN: +* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPciModeGet(MV_U32 pciIf, MV_PCI_MODE *pPciMode) +{ + MV_U32 pciMode; + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciModeGet: ERR. Invalid PCI interface %d\n", pciIf); + return MV_BAD_PARAM; + } + if (NULL == pPciMode) + { + mvOsPrintf("mvPciModeGet: ERR. pPciMode = NULL \n"); + return MV_BAD_PARAM; + } + + /* Read pci mode register */ + pciMode = MV_REG_READ(PCI_MODE_REG(pciIf)); + + switch (pciMode & PMR_PCI_MODE_MASK) + { + case PMR_PCI_MODE_CONV: + pPciMode->pciType = MV_PCI_CONV; + + if (MV_REG_READ(PCI_DLL_CTRL_REG(pciIf)) & PDC_DLL_EN) + { + pPciMode->pciSpeed = 66000000; /* 66MHZ */ + } + else + { + pPciMode->pciSpeed = 33000000; /* 33MHZ */ + } + + break; + + case PMR_PCI_MODE_PCIX_66MHZ: + pPciMode->pciType = MV_PCIX; + pPciMode->pciSpeed = 66000000; /* 66MHZ */ + break; + + case PMR_PCI_MODE_PCIX_100MHZ: + pPciMode->pciType = MV_PCIX; + pPciMode->pciSpeed = 100000000; /* 100MHZ */ + break; + + case PMR_PCI_MODE_PCIX_133MHZ: + pPciMode->pciType = MV_PCIX; + pPciMode->pciSpeed = 133000000; /* 133MHZ */ + break; + + default: + { + mvOsPrintf("mvPciModeGet: ERR. Non existing mode !!\n"); + return MV_ERROR; + } + } + + switch (pciMode & PMR_PCI_64_MASK) + { + case PMR_PCI_64_64BIT: + pPciMode->pciWidth = MV_PCI_64; + break; + + case PMR_PCI_64_32BIT: + pPciMode->pciWidth = MV_PCI_32; + break; + + default: + { + mvOsPrintf("mvPciModeGet: ERR. Non existing mode !!\n"); + return MV_ERROR; + } + } + + return MV_OK; +} + +/******************************************************************************* +* mvPciRetrySet - Set PCI retry counters +* +* DESCRIPTION: +* This function specifies the number of times the PCI controller +* retries a transaction before it quits. +* Applies to the PCI Master when acting as a requester. +* Applies to the PCI slave when acting as a completer (PCI-X mode). +* A 0x00 value means a "retry forever". +* +* INPUT: +* pciIf - PCI interface number. +* counter - Number of times PCI controller retry. Use counter value +* up to PRR_RETRY_CNTR_MAX. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPciRetrySet(MV_U32 pciIf, MV_U32 counter) +{ + MV_U32 pciRetry; + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciRetrySet: ERR. Invalid PCI interface %d\n", pciIf); + return MV_BAD_PARAM; + } + + if (counter >= PRR_RETRY_CNTR_MAX) + { + mvOsPrintf("mvPciRetrySet: ERR. Invalid counter: %d\n", counter); + return MV_BAD_PARAM; + + } + + /* Reading PCI retry register */ + pciRetry = MV_REG_READ(PCI_RETRY_REG(pciIf)); + + pciRetry &= ~PRR_RETRY_CNTR_MASK; + + pciRetry |= (counter << PRR_RETRY_CNTR_OFFS); + + /* write new value */ + MV_REG_WRITE(PCI_RETRY_REG(pciIf), pciRetry); + + return MV_OK; +} + + +/******************************************************************************* +* mvPciDiscardTimerSet - Set PCI discard timer +* +* DESCRIPTION: +* This function set PCI discard timer. +* In conventional PCI mode: +* Specifies the number of PCLK cycles the PCI slave keeps a non-accessed +* read buffers (non-completed delayed read) before invalidate the buffer. +* Set to '0' to disable the timer. The PCI slave waits for delayed +* read completion forever. +* In PCI-X mode: +* Specifies the number of PCLK cycles the PCI master waits for split +* completion transaction, before it invalidates the pre-allocated read +* buffer. +* Set to '0' to disable the timer. The PCI master waits for split +* completion forever. +* NOTE: Must be set to a number greater than MV_PCI_MAX_DISCARD_CLK, +* unless using the "wait for ever" setting 0x0. +* NOTE: Must not be updated while there are pending read requests. +* +* INPUT: +* pciIf - PCI interface number. +* pClkCycles - Number of PCI clock cycles. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPciDiscardTimerSet(MV_U32 pciIf, MV_U32 pClkCycles) +{ + MV_U32 pciDiscardTimer; + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciDiscardTimerSet: ERR. Invalid PCI interface %d\n", + pciIf); + return MV_BAD_PARAM; + } + + if (pClkCycles >= PDTR_TIMER_MIN) + { + mvOsPrintf("mvPciDiscardTimerSet: ERR. Invalid Clk value: %d\n", + pClkCycles); + return MV_BAD_PARAM; + + } + + /* Read PCI Discard Timer */ + pciDiscardTimer = MV_REG_READ(PCI_DISCARD_TIMER_REG(pciIf)); + + pciDiscardTimer &= ~PDTR_TIMER_MASK; + + pciDiscardTimer |= (pClkCycles << PDTR_TIMER_OFFS); + + /* Write new value */ + MV_REG_WRITE(PCI_DISCARD_TIMER_REG(pciIf), pciDiscardTimer); + + return MV_OK; + +} + +/* PCI Arbiter routines */ + +/******************************************************************************* +* mvPciArbEnable - PCI arbiter enable/disable +* +* DESCRIPTION: +* This fuction enable/disables a given PCI interface arbiter. +* NOTE: Arbiter setting can not be changed while in work. It should only +* be set once. +* INPUT: +* pciIf - PCI interface number. +* enable - Enable/disable parameter. If enable = MV_TRUE then enable. +* +* OUTPUT: +* None. +* +* RETURN: +* None. +* +*******************************************************************************/ +MV_STATUS mvPciArbEnable(MV_U32 pciIf, MV_BOOL enable) +{ + MV_U32 regVal; + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciArbEnable: ERR. Invalid PCI interface %d\n", pciIf); + return MV_ERROR; + } + + /* Set PCI Arbiter Control register according to default configuration */ + regVal = MV_REG_READ(PCI_ARBITER_CTRL_REG(pciIf)); + + /* Make sure arbiter disabled before changing its values */ + MV_REG_BIT_RESET(PCI_ARBITER_CTRL_REG(pciIf), PACR_ARB_ENABLE); + + regVal &= ~PCI_ARBITER_CTRL_DEFAULT_MASK; + + regVal |= PCI_ARBITER_CTRL_DEFAULT; /* Set default configuration */ + + if (MV_TRUE == enable) + { + regVal |= PACR_ARB_ENABLE; + } + else + { + regVal &= ~PACR_ARB_ENABLE; + } + + /* Write to register */ + MV_REG_WRITE(PCI_ARBITER_CTRL_REG(pciIf), regVal); + + return MV_OK; +} + + +/******************************************************************************* +* mvPciArbParkDis - Disable arbiter parking on agent +* +* DESCRIPTION: +* This function disables the PCI arbiter from parking on the given agent +* list. +* +* INPUT: +* pciIf - PCI interface number. +* pciAgentMask - When a bit in the mask is set to '1', parking on +* the associated PCI master is disabled. Mask bit +* refers to bit 0 - 6. For example disable parking on PCI +* agent 3 set pciAgentMask 0x4 (bit 3 is set). +* +* OUTPUT: +* None. +* +* RETURN: +* None. +* +*******************************************************************************/ +MV_STATUS mvPciArbParkDis(MV_U32 pciIf, MV_U32 pciAgentMask) +{ + MV_U32 pciArbiterCtrl; + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciArbParkDis: ERR. Invalid PCI interface %d\n", pciIf); + return MV_ERROR; + } + + /* Reading Arbiter Control register */ + pciArbiterCtrl = MV_REG_READ(PCI_ARBITER_CTRL_REG(pciIf)); + + /* Arbiter must be disabled before changing parking */ + MV_REG_BIT_RESET(PCI_ARBITER_CTRL_REG(pciIf), PACR_ARB_ENABLE); + + /* do the change */ + pciArbiterCtrl &= ~PACR_PARK_DIS_MASK; + pciArbiterCtrl |= (pciAgentMask << PACR_PARK_DIS_OFFS); + + /* writing new value ( if th earbiter was enabled before the change */ + /* here it will be reenabled */ + MV_REG_WRITE(PCI_ARBITER_CTRL_REG(pciIf), pciArbiterCtrl); + + return MV_OK; +} + + +/******************************************************************************* +* mvPciArbBrokDetectSet - Set PCI arbiter broken detection +* +* DESCRIPTION: +* This function sets the maximum number of cycles that the arbiter +* waits for a PCI master to respond to its grant assertion. If a +* PCI agent fails to respond within this time, the PCI arbiter aborts +* the transaction and performs a new arbitration cycle. +* NOTE: Value must be greater than '1' for conventional PCI and +* greater than '5' for PCI-X. +* +* INPUT: +* pciIf - PCI interface number. +* pClkCycles - Number of PCI clock cycles. If equal to '0' the broken +* master detection is disabled. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK +* +*******************************************************************************/ +MV_STATUS mvPciArbBrokDetectSet(MV_U32 pciIf, MV_U32 pClkCycles) +{ + MV_U32 pciArbiterCtrl; + MV_U32 pciMode; + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciArbBrokDetectSet: ERR. Invalid PCI interface %d\n", + pciIf); + return MV_BAD_PARAM; + } + + /* Checking PCI mode and if pClkCycles is legal value */ + pciMode = MV_REG_READ(PCI_MODE_REG(pciIf)); + pciMode &= PMR_PCI_MODE_MASK; + + if (PMR_PCI_MODE_CONV == pciMode) + { + if (pClkCycles < PACR_BROKEN_VAL_CONV_MIN) + return MV_ERROR; + } + else + { + if (pClkCycles < PACR_BROKEN_VAL_PCIX_MIN) + return MV_ERROR; + } + + pClkCycles <<= PACR_BROKEN_VAL_OFFS; + + /* Reading Arbiter Control register */ + pciArbiterCtrl = MV_REG_READ(PCI_ARBITER_CTRL_REG(pciIf)); + pciArbiterCtrl &= ~PACR_BROKEN_VAL_MASK; + pciArbiterCtrl |= pClkCycles; + + /* Arbiter must be disabled before changing broken detection */ + MV_REG_BIT_RESET(PCI_ARBITER_CTRL_REG(pciIf), PACR_ARB_ENABLE); + + /* writing new value ( if th earbiter was enabled before the change */ + /* here it will be reenabled */ + + MV_REG_WRITE(PCI_ARBITER_CTRL_REG(pciIf), pciArbiterCtrl); + + return MV_OK; +} + +/* 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 mvPciConfigRead (MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_U32 func, + MV_U32 regOff) +{ + MV_U32 pciData = 0; + + /* Parameter checking */ + if (PCI_DEFAULT_IF != pciIf) + { + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciConfigRead: ERR. Invalid PCI interface %d\n",pciIf); + return 0xFFFFFFFF; + } + } + + if (dev >= MAX_PCI_DEVICES) + { + DB(mvOsPrintf("mvPciConfigRead: ERR. device number illigal %d\n", dev)); + return 0xFFFFFFFF; + } + + if (func >= MAX_PCI_FUNCS) + { + DB(mvOsPrintf("mvPciConfigRead: ERR. function number illigal %d\n", func)); + return 0xFFFFFFFF; + } + + if (bus >= MAX_PCI_BUSSES) + { + DB(mvOsPrintf("mvPciConfigRead: ERR. bus number illigal %d\n", bus)); + return MV_ERROR; + } + + + /* Creating PCI address to be passed */ + pciData |= (bus << PCAR_BUS_NUM_OFFS); + pciData |= (dev << PCAR_DEVICE_NUM_OFFS); + pciData |= (func << PCAR_FUNC_NUM_OFFS); + pciData |= (regOff & PCAR_REG_NUM_MASK); + + pciData |= PCAR_CONFIG_EN; + + /* Write the address to the PCI configuration address register */ + MV_REG_WRITE(PCI_CONFIG_ADDR_REG(pciIf), pciData); + + /* In order to let the PCI controller absorbed the address of the read */ + /* transaction we perform a validity check that the address was written */ + if(pciData != MV_REG_READ(PCI_CONFIG_ADDR_REG(pciIf))) + { + return MV_ERROR; + } + /* Read the Data returned in the PCI Data register */ + pciData = MV_REG_READ(PCI_CONFIG_DATA_REG(pciIf)); + + return pciData; +} + +/******************************************************************************* +* 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 mvPciConfigWrite(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, + MV_U32 func, MV_U32 regOff, MV_U32 data) +{ + MV_U32 pciData = 0; + + /* Parameter checking */ + if (PCI_DEFAULT_IF != pciIf) + { + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciConfigWrite: ERR. Invalid PCI interface %d\n", + pciIf); + return 0xFFFFFFFF; + } + } + + if (dev >= MAX_PCI_DEVICES) + { + mvOsPrintf("mvPciConfigWrite: ERR. device number illigal %d\n",dev); + return MV_BAD_PARAM; + } + + if (func >= MAX_PCI_FUNCS) + { + mvOsPrintf("mvPciConfigWrite: ERR. function number illigal %d\n", func); + return MV_ERROR; + } + + if (bus >= MAX_PCI_BUSSES) + { + mvOsPrintf("mvPciConfigWrite: ERR. bus number illigal %d\n", bus); + return MV_ERROR; + } + + /* Creating PCI address to be passed */ + pciData |= (bus << PCAR_BUS_NUM_OFFS); + pciData |= (dev << PCAR_DEVICE_NUM_OFFS); + pciData |= (func << PCAR_FUNC_NUM_OFFS); + pciData |= (regOff & PCAR_REG_NUM_MASK); + + pciData |= PCAR_CONFIG_EN; + + /* Write the address to the PCI configuration address register */ + MV_REG_WRITE(PCI_CONFIG_ADDR_REG(pciIf), pciData); + + /* In order to let the PCI controller absorbed the address of the read */ + /* transaction we perform a validity check that the address was written */ + if(pciData != MV_REG_READ(PCI_CONFIG_ADDR_REG(pciIf))) + { + return MV_ERROR; + } + + /* Write the Data passed to the PCI Data register */ + MV_REG_WRITE(PCI_CONFIG_DATA_REG(pciIf), data); + + return MV_OK; +} + +/******************************************************************************* +* 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 mvPciMasterEnable(MV_U32 pciIf, MV_BOOL enable) +{ + MV_U32 pciCommandStatus; + MV_U32 RegOffs; + MV_U32 localBus; + MV_U32 localDev; + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciMasterEnable: ERR. Invalid PCI interface %d\n", pciIf); + return MV_ERROR; + } + + localBus = mvPciLocalBusNumGet(pciIf); + localDev = mvPciLocalDevNumGet(pciIf); + + RegOffs = PCI_STATUS_AND_COMMAND; + + pciCommandStatus = mvPciConfigRead(pciIf, localBus, localDev, 0, RegOffs); + + if (MV_TRUE == enable) + { + pciCommandStatus |= PSCR_MASTER_EN; + } + else + { + pciCommandStatus &= ~PSCR_MASTER_EN; + } + + mvPciConfigWrite(pciIf, localBus, localDev, 0, RegOffs, pciCommandStatus); + + return MV_OK; +} + + +/******************************************************************************* +* 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 mvPciSlaveEnable(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_BOOL enable) +{ + MV_U32 pciCommandStatus; + MV_U32 RegOffs; + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciSlaveEnable: ERR. Invalid PCI interface %d\n", pciIf); + return MV_BAD_PARAM; + } + if (dev >= MAX_PCI_DEVICES) + { + mvOsPrintf("mvPciLocalDevNumSet: ERR. device number illigal %d\n", dev); + return MV_BAD_PARAM; + + } + + RegOffs = PCI_STATUS_AND_COMMAND; + + pciCommandStatus=mvPciConfigRead(pciIf, bus, dev, 0, RegOffs); + + if (MV_TRUE == enable) + { + pciCommandStatus |= (PSCR_IO_EN | PSCR_MEM_EN); + } + else + { + pciCommandStatus &= ~(PSCR_IO_EN | PSCR_MEM_EN); + } + + mvPciConfigWrite(pciIf, bus, dev, 0, RegOffs, pciCommandStatus); + + return MV_OK; +} + +/******************************************************************************* +* 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 mvPciLocalBusNumSet(MV_U32 pciIf, MV_U32 busNum) +{ + MV_U32 pciP2PConfig; + MV_PCI_MODE pciMode; + MV_U32 localBus; + MV_U32 localDev; + + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciLocalBusNumSet: ERR. Invalid PCI interface %d\n",pciIf); + return MV_BAD_PARAM; + } + if (busNum >= MAX_PCI_BUSSES) + { + mvOsPrintf("mvPciLocalBusNumSet: ERR. bus number illigal %d\n", busNum); + return MV_ERROR; + + } + + localBus = mvPciLocalBusNumGet(pciIf); + localDev = mvPciLocalDevNumGet(pciIf); + + + /* PCI interface mode */ + mvPciModeGet(pciIf, &pciMode); + + /* if PCI type is PCI-X then it is not allowed to change the dev number */ + if (MV_PCIX == pciMode.pciType) + { + pciP2PConfig = mvPciConfigRead(pciIf, localBus, localDev, 0, PCIX_STATUS ); + + pciP2PConfig &= ~PXS_BN_MASK; + + pciP2PConfig |= (busNum << PXS_BN_OFFS) & PXS_BN_MASK; + + mvPciConfigWrite(pciIf, localBus, localDev, 0, PCIX_STATUS,pciP2PConfig ); + + } + else + { + pciP2PConfig = MV_REG_READ(PCI_P2P_CONFIG_REG(pciIf)); + + pciP2PConfig &= ~PPCR_BUS_NUM_MASK; + + pciP2PConfig |= (busNum << PPCR_BUS_NUM_OFFS) & PPCR_BUS_NUM_MASK; + + MV_REG_WRITE(PCI_P2P_CONFIG_REG(pciIf), pciP2PConfig); + + } + + + return MV_OK; +} + + +/******************************************************************************* +* 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 mvPciLocalBusNumGet(MV_U32 pciIf) +{ + MV_U32 pciP2PConfig; + + /* Parameter checking */ + if (PCI_DEFAULT_IF != pciIf) + { + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciLocalBusNumGet: ERR. Invalid PCI interface %d\n", + pciIf); + return 0xFFFFFFFF; + } + } + + pciP2PConfig = MV_REG_READ(PCI_P2P_CONFIG_REG(pciIf)); + pciP2PConfig &= PPCR_BUS_NUM_MASK; + return (pciP2PConfig >> PPCR_BUS_NUM_OFFS); +} + + +/******************************************************************************* +* 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 mvPciLocalDevNumSet(MV_U32 pciIf, MV_U32 devNum) +{ + MV_U32 pciP2PConfig; + MV_PCI_MODE pciMode; + MV_U32 localBus; + MV_U32 localDev; + + /* Parameter checking */ + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciLocalDevNumSet: ERR. Invalid PCI interface %d\n",pciIf); + return MV_BAD_PARAM; + } + if (devNum >= MAX_PCI_DEVICES) + { + mvOsPrintf("mvPciLocalDevNumSet: ERR. device number illigal %d\n", + devNum); + return MV_BAD_PARAM; + + } + + localBus = mvPciLocalBusNumGet(pciIf); + localDev = mvPciLocalDevNumGet(pciIf); + + /* PCI interface mode */ + mvPciModeGet(pciIf, &pciMode); + + /* if PCI type is PCIX then it is not allowed to change the dev number */ + if (MV_PCIX == pciMode.pciType) + { + pciP2PConfig = mvPciConfigRead(pciIf, localBus, localDev, 0, PCIX_STATUS ); + + pciP2PConfig &= ~PXS_DN_MASK; + + pciP2PConfig |= (devNum << PXS_DN_OFFS) & PXS_DN_MASK; + + mvPciConfigWrite(pciIf,localBus, localDev, 0, PCIX_STATUS,pciP2PConfig ); + } + else + { + pciP2PConfig = MV_REG_READ(PCI_P2P_CONFIG_REG(pciIf)); + + pciP2PConfig &= ~PPCR_DEV_NUM_MASK; + + pciP2PConfig |= (devNum << PPCR_DEV_NUM_OFFS) & PPCR_DEV_NUM_MASK; + + MV_REG_WRITE(PCI_P2P_CONFIG_REG(pciIf), pciP2PConfig); + } + + return MV_OK; +} + +/******************************************************************************* +* 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 mvPciLocalDevNumGet(MV_U32 pciIf) +{ + MV_U32 pciP2PConfig; + + /* Parameter checking */ + + if (PCI_DEFAULT_IF != pciIf) + { + if (pciIf >= mvCtrlPciMaxIfGet()) + { + mvOsPrintf("mvPciLocalDevNumGet: ERR. Invalid PCI interface %d\n", + pciIf); + return 0xFFFFFFFF; + } + } + + pciP2PConfig = MV_REG_READ(PCI_P2P_CONFIG_REG(pciIf)); + + pciP2PConfig &= PPCR_DEV_NUM_MASK; + + return (pciP2PConfig >> PPCR_DEV_NUM_OFFS); +} + + + + |