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Diffstat (limited to 'target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/ddr1_2/mvDramIf.c')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/ddr1_2/mvDramIf.c | 1599 |
1 files changed, 1599 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/ddr1_2/mvDramIf.c b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/ddr1_2/mvDramIf.c new file mode 100644 index 000000000..12fb26ad0 --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/ddr1_2/mvDramIf.c @@ -0,0 +1,1599 @@ +/******************************************************************************* +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. + +*******************************************************************************/ + + +/* includes */ +#include "ddr1_2/mvDramIf.h" +#include "ctrlEnv/sys/mvCpuIf.h" + + + +#ifdef MV_DEBUG +#define DB(x) x +#else +#define DB(x) +#endif + +/* DRAM bank presence encoding */ +#define BANK_PRESENT_CS0 0x1 +#define BANK_PRESENT_CS0_CS1 0x3 +#define BANK_PRESENT_CS0_CS2 0x5 +#define BANK_PRESENT_CS0_CS1_CS2 0x7 +#define BANK_PRESENT_CS0_CS2_CS3 0xd +#define BANK_PRESENT_CS0_CS2_CS3_CS4 0xf + +/* locals */ +static MV_BOOL sdramIfWinOverlap(MV_TARGET target, MV_ADDR_WIN *pAddrWin); +#if defined(MV_INC_BOARD_DDIM) +static void sdramDDr2OdtConfig(MV_DRAM_BANK_INFO *pBankInfo); +static MV_U32 dunitCtrlLowRegCalc(MV_DRAM_BANK_INFO *pBankInfo, MV_U32 minCas); +static MV_U32 sdramModeRegCalc(MV_U32 minCas); +static MV_U32 sdramExtModeRegCalc(MV_DRAM_BANK_INFO *pBankInfo); +static MV_U32 sdramAddrCtrlRegCalc(MV_DRAM_BANK_INFO *pBankInfo); +static MV_U32 sdramConfigRegCalc(MV_DRAM_BANK_INFO *pBankInfo, MV_U32 busClk); +static MV_U32 minCasCalc(MV_DRAM_BANK_INFO *pBankInfo, MV_U32 busClk, + MV_U32 forcedCl); +static MV_U32 sdramTimeCtrlLowRegCalc(MV_DRAM_BANK_INFO *pBankInfo, + MV_U32 minCas, MV_U32 busClk); +static MV_U32 sdramTimeCtrlHighRegCalc(MV_DRAM_BANK_INFO *pBankInfo, + MV_U32 busClk); + +/******************************************************************************* +* mvDramIfDetect - Prepare DRAM interface configuration values. +* +* DESCRIPTION: +* This function implements the full DRAM detection and timing +* configuration for best system performance. +* Since this routine runs from a ROM device (Boot Flash), its stack +* resides on RAM, that might be the system DRAM. Changing DRAM +* configuration values while keeping vital data in DRAM is risky. That +* is why the function does not preform the configuration setting but +* prepare those in predefined 32bit registers (in this case IDMA +* registers are used) for other routine to perform the settings. +* The function will call for board DRAM SPD information for each DRAM +* chip select. The function will then analyze those SPD parameters of +* all DRAM banks in order to decide on DRAM configuration compatible +* for all DRAM banks. +* The function will set the CPU DRAM address decode registers. +* Note: This routine prepares values that will overide configuration of +* mvDramBasicAsmInit(). +* +* INPUT: +* forcedCl - Forced CAL Latency. If equal to zero, do not force. +* +* OUTPUT: +* None. +* +* RETURN: +* None. +* +*******************************************************************************/ +MV_STATUS mvDramIfDetect(MV_U32 forcedCl) +{ + MV_U32 retVal = MV_OK; /* return value */ + MV_DRAM_BANK_INFO bankInfo[MV_DRAM_MAX_CS]; + MV_U32 busClk, size, base = 0, i, temp, deviceW, dimmW; + MV_U8 minCas; + MV_DRAM_DEC_WIN dramDecWin; + + dramDecWin.addrWin.baseHigh = 0; + + busClk = mvBoardSysClkGet(); + + if (0 == busClk) + { + mvOsPrintf("Dram: ERR. Can't detect system clock! \n"); + return MV_ERROR; + } + + /* Close DRAM banks except bank 0 (in case code is excecuting from it...) */ +#if defined(MV_INCLUDE_SDRAM_CS1) + for(i= SDRAM_CS1; i < MV_DRAM_MAX_CS; i++) + mvCpuIfTargetWinEnable(i, MV_FALSE); +#endif + + /* we will use bank 0 as the representative of the all the DRAM banks, */ + /* since bank 0 must exist. */ + for(i = 0; i < MV_DRAM_MAX_CS; i++) + { + /* if Bank exist */ + if(MV_OK == mvDramBankInfoGet(i, &bankInfo[i])) + { + /* check it isn't SDRAM */ + if(bankInfo[i].memoryType == MEM_TYPE_SDRAM) + { + mvOsPrintf("Dram: ERR. SDRAM type not supported !!!\n"); + return MV_ERROR; + } + /* All banks must support registry in order to activate it */ + if(bankInfo[i].registeredAddrAndControlInputs != + bankInfo[0].registeredAddrAndControlInputs) + { + mvOsPrintf("Dram: ERR. different Registered settings !!!\n"); + return MV_ERROR; + } + + /* Init the CPU window decode */ + /* Note that the size in Bank info is in MB units */ + /* Note that the Dimm width might be different then the device DRAM width */ + temp = MV_REG_READ(SDRAM_CONFIG_REG); + + deviceW = ((temp & SDRAM_DWIDTH_MASK) == SDRAM_DWIDTH_16BIT )? 16 : 32; + dimmW = bankInfo[0].dataWidth - (bankInfo[0].dataWidth % 16); + size = ((bankInfo[i].size << 20) / (dimmW/deviceW)); + + /* We can not change DRAM window settings while excecuting */ + /* code from it. That is why we skip the DRAM CS[0], saving */ + /* it to the ROM configuration routine */ + if(i == SDRAM_CS0) + { + MV_U32 sizeToReg; + + /* Translate the given window size to register format */ + sizeToReg = ctrlSizeToReg(size, SCSR_SIZE_ALIGNMENT); + + /* Size parameter validity check. */ + if (-1 == sizeToReg) + { + mvOsPrintf("mvCtrlAddrDecToReg: ERR. Win %d size invalid.\n" + ,i); + return MV_BAD_PARAM; + } + + /* Size is located at upper 16 bits */ + sizeToReg <<= SCSR_SIZE_OFFS; + + /* enable it */ + sizeToReg |= SCSR_WIN_EN; + + MV_REG_WRITE(DRAM_BUF_REG0, sizeToReg); + } + else + { + dramDecWin.addrWin.baseLow = base; + dramDecWin.addrWin.size = size; + dramDecWin.enable = MV_TRUE; + + if (MV_OK != mvDramIfWinSet(SDRAM_CS0 + i, &dramDecWin)) + { + mvOsPrintf("Dram: ERR. Fail to set bank %d!!!\n", + SDRAM_CS0 + i); + return MV_ERROR; + } + } + + base += size; + + /* update the suportedCasLatencies mask */ + bankInfo[0].suportedCasLatencies &= bankInfo[i].suportedCasLatencies; + + } + else + { + if( i == 0 ) /* bank 0 doesn't exist */ + { + mvOsPrintf("Dram: ERR. Fail to detect bank 0 !!!\n"); + return MV_ERROR; + } + else + { + DB(mvOsPrintf("Dram: Could not find bank %d\n", i)); + bankInfo[i].size = 0; /* Mark this bank as non exist */ + } + } + } + + /* calculate minimum CAS */ + minCas = minCasCalc(&bankInfo[0], busClk, forcedCl); + if (0 == minCas) + { + mvOsOutput("Dram: Warn: Could not find CAS compatible to SysClk %dMhz\n", + (busClk / 1000000)); + + if (MV_REG_READ(SDRAM_CONFIG_REG) & SDRAM_DTYPE_DDR2) + { + minCas = DDR2_CL_4; /* Continue with this CAS */ + mvOsPrintf("Set default CAS latency 4\n"); + } + else + { + minCas = DDR1_CL_3; /* Continue with this CAS */ + mvOsPrintf("Set default CAS latency 3\n"); + } + } + + /* calc SDRAM_CONFIG_REG and save it to temp register */ + temp = sdramConfigRegCalc(&bankInfo[0], busClk); + if(-1 == temp) + { + mvOsPrintf("Dram: ERR. sdramConfigRegCalc failed !!!\n"); + return MV_ERROR; + } + MV_REG_WRITE(DRAM_BUF_REG1, temp); + + /* calc SDRAM_MODE_REG and save it to temp register */ + temp = sdramModeRegCalc(minCas); + if(-1 == temp) + { + mvOsPrintf("Dram: ERR. sdramModeRegCalc failed !!!\n"); + return MV_ERROR; + } + MV_REG_WRITE(DRAM_BUF_REG2, temp); + + /* calc SDRAM_EXTENDED_MODE_REG and save it to temp register */ + temp = sdramExtModeRegCalc(&bankInfo[0]); + if(-1 == temp) + { + mvOsPrintf("Dram: ERR. sdramModeRegCalc failed !!!\n"); + return MV_ERROR; + } + MV_REG_WRITE(DRAM_BUF_REG10, temp); + + /* calc D_UNIT_CONTROL_LOW and save it to temp register */ + temp = dunitCtrlLowRegCalc(&bankInfo[0], minCas); + if(-1 == temp) + { + mvOsPrintf("Dram: ERR. dunitCtrlLowRegCalc failed !!!\n"); + return MV_ERROR; + } + MV_REG_WRITE(DRAM_BUF_REG3, temp); + + /* calc SDRAM_ADDR_CTRL_REG and save it to temp register */ + temp = sdramAddrCtrlRegCalc(&bankInfo[0]); + if(-1 == temp) + { + mvOsPrintf("Dram: ERR. sdramAddrCtrlRegCalc failed !!!\n"); + return MV_ERROR; + } + MV_REG_WRITE(DRAM_BUF_REG4, temp); + + /* calc SDRAM_TIMING_CTRL_LOW_REG and save it to temp register */ + temp = sdramTimeCtrlLowRegCalc(&bankInfo[0], minCas, busClk); + if(-1 == temp) + { + mvOsPrintf("Dram: ERR. sdramTimeCtrlLowRegCalc failed !!!\n"); + return MV_ERROR; + } + MV_REG_WRITE(DRAM_BUF_REG5, temp); + + /* calc SDRAM_TIMING_CTRL_HIGH_REG and save it to temp register */ + temp = sdramTimeCtrlHighRegCalc(&bankInfo[0], busClk); + if(-1 == temp) + { + mvOsPrintf("Dram: ERR. sdramTimeCtrlHighRegCalc failed !!!\n"); + return MV_ERROR; + } + MV_REG_WRITE(DRAM_BUF_REG6, temp); + + /* Config DDR2 On Die Termination (ODT) registers */ + if (MV_REG_READ(SDRAM_CONFIG_REG) & SDRAM_DTYPE_DDR2) + { + sdramDDr2OdtConfig(bankInfo); + } + + /* Note that DDR SDRAM Address/Control and Data pad calibration */ + /* settings is done in mvSdramIfConfig.s */ + + return retVal; +} + +/******************************************************************************* +* minCasCalc - Calculate the Minimum CAS latency which can be used. +* +* DESCRIPTION: +* Calculate the minimum CAS latency that can be used, base on the DRAM +* parameters and the SDRAM bus Clock freq. +* +* INPUT: +* busClk - the DRAM bus Clock. +* pBankInfo - bank info parameters. +* +* OUTPUT: +* None +* +* RETURN: +* The minimum CAS Latency. The function returns 0 if max CAS latency +* supported by banks is incompatible with system bus clock frequancy. +* +*******************************************************************************/ +static MV_U32 minCasCalc(MV_DRAM_BANK_INFO *pBankInfo, MV_U32 busClk, + MV_U32 forcedCl) +{ + MV_U32 count = 1, j; + MV_U32 busClkPs = 1000000000 / (busClk / 1000); /* in ps units */ + MV_U32 startBit, stopBit; + + /* DDR 1: + *******-******-******-******-******-******-******-******* + * bit7 | bit6 | bit5 | bit4 | bit3 | bit2 | bit1 | bit0 * + *******-******-******-******-******-******-******-******* + CAS = * TBD | 4 | 3.5 | 3 | 2.5 | 2 | 1.5 | 1 * + *********************************************************/ + + /* DDR 2: + *******-******-******-******-******-******-******-******* + * bit7 | bit6 | bit5 | bit4 | bit3 | bit2 | bit1 | bit0 * + *******-******-******-******-******-******-******-******* + CAS = * TBD | TBD | 5 | 4 | 3 | 2 | TBD | TBD * + *********************************************************/ + + + /* If we are asked to use the forced CAL */ + if (forcedCl) + { + mvOsPrintf("DRAM: Using forced CL %d.%d\n", (forcedCl / 10), + (forcedCl % 10)); + + if (MV_REG_READ(SDRAM_CONFIG_REG) & SDRAM_DTYPE_DDR2) + { + if (forcedCl == 30) + pBankInfo->suportedCasLatencies = 0x08; + else if (forcedCl == 40) + pBankInfo->suportedCasLatencies = 0x10; + else + { + mvOsPrintf("Forced CL %d.%d not supported. Set default CL 4\n", + (forcedCl / 10), (forcedCl % 10)); + pBankInfo->suportedCasLatencies = 0x10; + } + } + else + { + if (forcedCl == 15) + pBankInfo->suportedCasLatencies = 0x02; + else if (forcedCl == 20) + pBankInfo->suportedCasLatencies = 0x04; + else if (forcedCl == 25) + pBankInfo->suportedCasLatencies = 0x08; + else if (forcedCl == 30) + pBankInfo->suportedCasLatencies = 0x10; + else if (forcedCl == 40) + pBankInfo->suportedCasLatencies = 0x40; + else + { + mvOsPrintf("Forced CL %d.%d not supported. Set default CL 3\n", + (forcedCl / 10), (forcedCl % 10)); + pBankInfo->suportedCasLatencies = 0x10; + } + } + + return pBankInfo->suportedCasLatencies; + } + + /* go over the supported cas mask from Max Cas down and check if the */ + /* SysClk stands in its time requirments. */ + + + DB(mvOsPrintf("Dram: minCasCalc supported mask = %x busClkPs = %x \n", + pBankInfo->suportedCasLatencies,busClkPs )); + for(j = 7; j > 0; j--) + { + if((pBankInfo->suportedCasLatencies >> j) & BIT0 ) + { + /* Reset the bits for CL incompatible for the sysClk */ + switch (count) + { + case 1: + if (pBankInfo->minCycleTimeAtMaxCasLatPs > busClkPs) + pBankInfo->suportedCasLatencies &= ~(BIT0 << j); + count++; + break; + case 2: + if (pBankInfo->minCycleTimeAtMaxCasLatMinus1Ps > busClkPs) + pBankInfo->suportedCasLatencies &= ~(BIT0 << j); + count++; + break; + case 3: + if (pBankInfo->minCycleTimeAtMaxCasLatMinus2Ps > busClkPs) + pBankInfo->suportedCasLatencies &= ~(BIT0 << j); + count++; + break; + default: + pBankInfo->suportedCasLatencies &= ~(BIT0 << j); + break; + } + } + } + + DB(mvOsPrintf("Dram: minCasCalc support = %x (after SysCC calc)\n", + pBankInfo->suportedCasLatencies )); + + /* SDRAM DDR1 controller supports CL 1.5 to 3.5 */ + /* SDRAM DDR2 controller supports CL 3 to 5 */ + if (MV_REG_READ(SDRAM_CONFIG_REG) & SDRAM_DTYPE_DDR2) + { + startBit = 3; /* DDR2 support CL start with CL3 (bit 3) */ + stopBit = 5; /* DDR2 support CL stops with CL5 (bit 5) */ + } + else + { + startBit = 1; /* DDR1 support CL start with CL1.5 (bit 3) */ + stopBit = 4; /* DDR1 support CL stops with CL3 (bit 4) */ + } + + for(j = startBit; j <= stopBit ; j++) + { + if((pBankInfo->suportedCasLatencies >> j) & BIT0 ) + { + DB(mvOsPrintf("Dram: minCasCalc choose CAS %x \n",(BIT0 << j))); + return (BIT0 << j); + } + } + + return 0; +} + +/******************************************************************************* +* sdramConfigRegCalc - Calculate sdram config register +* +* DESCRIPTION: Calculate sdram config register optimized value based +* on the bank info parameters. +* +* INPUT: +* pBankInfo - sdram bank parameters +* +* OUTPUT: +* None +* +* RETURN: +* sdram config reg value. +* +*******************************************************************************/ +static MV_U32 sdramConfigRegCalc(MV_DRAM_BANK_INFO *pBankInfo, MV_U32 busClk) +{ + MV_U32 sdramConfig = 0; + MV_U32 refreshPeriod; + + busClk /= 1000000; /* we work with busClk in MHz */ + + sdramConfig = MV_REG_READ(SDRAM_CONFIG_REG); + + /* figure out the memory refresh internal */ + switch (pBankInfo->refreshInterval & 0xf) + { + case 0x0: /* refresh period is 15.625 usec */ + refreshPeriod = 15625; + break; + case 0x1: /* refresh period is 3.9 usec */ + refreshPeriod = 3900; + break; + case 0x2: /* refresh period is 7.8 usec */ + refreshPeriod = 7800; + break; + case 0x3: /* refresh period is 31.3 usec */ + refreshPeriod = 31300; + break; + case 0x4: /* refresh period is 62.5 usec */ + refreshPeriod = 62500; + break; + case 0x5: /* refresh period is 125 usec */ + refreshPeriod = 125000; + break; + default: /* refresh period undefined */ + mvOsPrintf("Dram: ERR. DRAM refresh period is unknown!\n"); + return -1; + } + + /* Now the refreshPeriod is in register format value */ + refreshPeriod = (busClk * refreshPeriod) / 1000; + + DB(mvOsPrintf("Dram: sdramConfigRegCalc calculated refresh interval %0x\n", + refreshPeriod)); + + /* make sure the refresh value is only 14 bits */ + if(refreshPeriod > SDRAM_REFRESH_MAX) + { + refreshPeriod = SDRAM_REFRESH_MAX; + DB(mvOsPrintf("Dram: sdramConfigRegCalc adjusted refresh interval %0x\n", + refreshPeriod)); + } + + /* Clear the refresh field */ + sdramConfig &= ~SDRAM_REFRESH_MASK; + + /* Set new value to refresh field */ + sdramConfig |= (refreshPeriod & SDRAM_REFRESH_MASK); + + /* registered DRAM ? */ + if ( pBankInfo->registeredAddrAndControlInputs ) + { + /* it's registered DRAM, so set the reg. DRAM bit */ + sdramConfig |= SDRAM_REGISTERED; + mvOsPrintf("DRAM Attribute: Registered address and control inputs.\n"); + } + + /* set DDR SDRAM devices configuration */ + sdramConfig &= ~SDRAM_DCFG_MASK; /* Clear Dcfg field */ + + switch (pBankInfo->sdramWidth) + { + case 8: /* memory is x8 */ + sdramConfig |= SDRAM_DCFG_X8_DEV; + DB(mvOsPrintf("Dram: sdramConfigRegCalc SDRAM device width x8\n")); + break; + case 16: + sdramConfig |= SDRAM_DCFG_X16_DEV; + DB(mvOsPrintf("Dram: sdramConfigRegCalc SDRAM device width x16\n")); + break; + default: /* memory width unsupported */ + mvOsPrintf("Dram: ERR. DRAM chip width is unknown!\n"); + return -1; + } + + /* Set static default settings */ + sdramConfig |= SDRAM_CONFIG_DV; + + DB(mvOsPrintf("Dram: sdramConfigRegCalc set sdramConfig to 0x%x\n", + sdramConfig)); + + return sdramConfig; +} + +/******************************************************************************* +* sdramModeRegCalc - Calculate sdram mode register +* +* DESCRIPTION: Calculate sdram mode register optimized value based +* on the bank info parameters and the minCas. +* +* INPUT: +* minCas - minimum CAS supported. +* +* OUTPUT: +* None +* +* RETURN: +* sdram mode reg value. +* +*******************************************************************************/ +static MV_U32 sdramModeRegCalc(MV_U32 minCas) +{ + MV_U32 sdramMode; + + sdramMode = MV_REG_READ(SDRAM_MODE_REG); + + /* Clear CAS Latency field */ + sdramMode &= ~SDRAM_CL_MASK; + + mvOsPrintf("DRAM CAS Latency "); + + if (MV_REG_READ(SDRAM_CONFIG_REG) & SDRAM_DTYPE_DDR2) + { + switch (minCas) + { + case DDR2_CL_3: + sdramMode |= SDRAM_DDR2_CL_3; + mvOsPrintf("3.\n"); + break; + case DDR2_CL_4: + sdramMode |= SDRAM_DDR2_CL_4; + mvOsPrintf("4.\n"); + break; + case DDR2_CL_5: + sdramMode |= SDRAM_DDR2_CL_5; + mvOsPrintf("5.\n"); + break; + default: + mvOsPrintf("\nsdramModeRegCalc ERROR: Max. CL out of range\n"); + return -1; + } + sdramMode |= DDR2_MODE_REG_DV; + } + else /* DDR1 */ + { + switch (minCas) + { + case DDR1_CL_1_5: + sdramMode |= SDRAM_DDR1_CL_1_5; + mvOsPrintf("1.5\n"); + break; + case DDR1_CL_2: + sdramMode |= SDRAM_DDR1_CL_2; + mvOsPrintf("2\n"); + break; + case DDR1_CL_2_5: + sdramMode |= SDRAM_DDR1_CL_2_5; + mvOsPrintf("2.5\n"); + break; + case DDR1_CL_3: + sdramMode |= SDRAM_DDR1_CL_3; + mvOsPrintf("3\n"); + break; + case DDR1_CL_4: + sdramMode |= SDRAM_DDR1_CL_4; + mvOsPrintf("4\n"); + break; + default: + mvOsPrintf("\nsdramModeRegCalc ERROR: Max. CL out of range\n"); + return -1; + } + sdramMode |= DDR1_MODE_REG_DV; + } + + DB(mvOsPrintf("nsdramModeRegCalc register 0x%x\n", sdramMode )); + + return sdramMode; +} + +/******************************************************************************* +* sdramExtModeRegCalc - Calculate sdram Extended mode register +* +* DESCRIPTION: +* Return sdram Extended mode register value based +* on the bank info parameters and bank presence. +* +* INPUT: +* pBankInfo - sdram bank parameters +* +* OUTPUT: +* None +* +* RETURN: +* sdram Extended mode reg value. +* +*******************************************************************************/ +static MV_U32 sdramExtModeRegCalc(MV_DRAM_BANK_INFO *pBankInfo) +{ + MV_U32 populateBanks = 0; + int bankNum; + if (MV_REG_READ(SDRAM_CONFIG_REG) & SDRAM_DTYPE_DDR2) + { + /* Represent the populate banks in binary form */ + for(bankNum = 0; bankNum < MV_DRAM_MAX_CS; bankNum++) + { + if (0 != pBankInfo[bankNum].size) + { + populateBanks |= (1 << bankNum); + } + } + + switch(populateBanks) + { + case(BANK_PRESENT_CS0): + return DDR_SDRAM_EXT_MODE_CS0_DV; + + case(BANK_PRESENT_CS0_CS1): + return DDR_SDRAM_EXT_MODE_CS0_DV; + + case(BANK_PRESENT_CS0_CS2): + return DDR_SDRAM_EXT_MODE_CS0_CS2_DV; + + case(BANK_PRESENT_CS0_CS1_CS2): + return DDR_SDRAM_EXT_MODE_CS0_CS2_DV; + + case(BANK_PRESENT_CS0_CS2_CS3): + return DDR_SDRAM_EXT_MODE_CS0_CS2_DV; + + case(BANK_PRESENT_CS0_CS2_CS3_CS4): + return DDR_SDRAM_EXT_MODE_CS0_CS2_DV; + + default: + mvOsPrintf("sdramExtModeRegCalc: Invalid DRAM bank presence\n"); + return -1; + } + } + return 0; +} + +/******************************************************************************* +* dunitCtrlLowRegCalc - Calculate sdram dunit control low register +* +* DESCRIPTION: Calculate sdram dunit control low register optimized value based +* on the bank info parameters and the minCas. +* +* INPUT: +* pBankInfo - sdram bank parameters +* minCas - minimum CAS supported. +* +* OUTPUT: +* None +* +* RETURN: +* sdram dunit control low reg value. +* +*******************************************************************************/ +static MV_U32 dunitCtrlLowRegCalc(MV_DRAM_BANK_INFO *pBankInfo, MV_U32 minCas) +{ + MV_U32 dunitCtrlLow; + + dunitCtrlLow = MV_REG_READ(SDRAM_DUNIT_CTRL_REG); + + /* Clear StBurstDel field */ + dunitCtrlLow &= ~SDRAM_ST_BURST_DEL_MASK; + +#ifdef MV_88W8660 + /* Clear address/control output timing field */ + dunitCtrlLow &= ~SDRAM_CTRL_POS_RISE; +#endif /* MV_88W8660 */ + + DB(mvOsPrintf("Dram: dunitCtrlLowRegCalc\n")); + + /* For proper sample of read data set the Dunit Control register's */ + /* stBurstDel bits [27:24] */ + /********-********-********-********-********-********* + * CL=1.5 | CL=2 | CL=2.5 | CL=3 | CL=4 | CL=5 * + *********-********-********-********-********-********* +Not Reg. * 0011 | 0011 | 0100 | 0100 | 0101 | TBD * + *********-********-********-********-********-********* +Registered * 0100 | 0100 | 0101 | 0101 | 0110 | TBD * + *********-********-********-********-********-*********/ + + if (MV_REG_READ(SDRAM_CONFIG_REG) & SDRAM_DTYPE_DDR2) + { + switch (minCas) + { + case DDR2_CL_3: + /* registerd DDR SDRAM? */ + if (pBankInfo->registeredAddrAndControlInputs == MV_TRUE) + dunitCtrlLow |= 0x5 << SDRAM_ST_BURST_DEL_OFFS; + else + dunitCtrlLow |= 0x4 << SDRAM_ST_BURST_DEL_OFFS; + break; + case DDR2_CL_4: + /* registerd DDR SDRAM? */ + if (pBankInfo->registeredAddrAndControlInputs == MV_TRUE) + dunitCtrlLow |= 0x6 << SDRAM_ST_BURST_DEL_OFFS; + else + dunitCtrlLow |= 0x5 << SDRAM_ST_BURST_DEL_OFFS; + break; + default: + mvOsPrintf("Dram: dunitCtrlLowRegCalc Max. CL out of range %d\n", + minCas); + return -1; + } + } + else /* DDR1 */ + { + switch (minCas) + { + case DDR1_CL_1_5: + /* registerd DDR SDRAM? */ + if (pBankInfo->registeredAddrAndControlInputs == MV_TRUE) + dunitCtrlLow |= 0x4 << SDRAM_ST_BURST_DEL_OFFS; + else + dunitCtrlLow |= 0x3 << SDRAM_ST_BURST_DEL_OFFS; + break; + case DDR1_CL_2: + /* registerd DDR SDRAM? */ + if (pBankInfo->registeredAddrAndControlInputs == MV_TRUE) + dunitCtrlLow |= 0x4 << SDRAM_ST_BURST_DEL_OFFS; + else + dunitCtrlLow |= 0x3 << SDRAM_ST_BURST_DEL_OFFS; + break; + case DDR1_CL_2_5: + /* registerd DDR SDRAM? */ + if (pBankInfo->registeredAddrAndControlInputs == MV_TRUE) + dunitCtrlLow |= 0x5 << SDRAM_ST_BURST_DEL_OFFS; + else + dunitCtrlLow |= 0x4 << SDRAM_ST_BURST_DEL_OFFS; + break; + case DDR1_CL_3: + /* registerd DDR SDRAM? */ + if (pBankInfo->registeredAddrAndControlInputs == MV_TRUE) + dunitCtrlLow |= 0x5 << SDRAM_ST_BURST_DEL_OFFS; + else + dunitCtrlLow |= 0x4 << SDRAM_ST_BURST_DEL_OFFS; + break; + case DDR1_CL_4: + /* registerd DDR SDRAM? */ + if (pBankInfo->registeredAddrAndControlInputs == MV_TRUE) + dunitCtrlLow |= 0x6 << SDRAM_ST_BURST_DEL_OFFS; + else + dunitCtrlLow |= 0x5 << SDRAM_ST_BURST_DEL_OFFS; + break; + default: + mvOsPrintf("Dram: dunitCtrlLowRegCalc Max. CL out of range %d\n", + minCas); + return -1; + } + + } + DB(mvOsPrintf("Dram: Reg dunit control low = %x\n", dunitCtrlLow )); + + return dunitCtrlLow; +} + +/******************************************************************************* +* sdramAddrCtrlRegCalc - Calculate sdram address control register +* +* DESCRIPTION: Calculate sdram address control register optimized value based +* on the bank info parameters and the minCas. +* +* INPUT: +* pBankInfo - sdram bank parameters +* +* OUTPUT: +* None +* +* RETURN: +* sdram address control reg value. +* +*******************************************************************************/ +static MV_U32 sdramAddrCtrlRegCalc(MV_DRAM_BANK_INFO *pBankInfo) +{ + MV_U32 addrCtrl = 0; + + /* Set Address Control register static configuration bits */ + addrCtrl = MV_REG_READ(SDRAM_ADDR_CTRL_REG); + + /* Set address control default value */ + addrCtrl |= SDRAM_ADDR_CTRL_DV; + + /* Clear DSize field */ + addrCtrl &= ~SDRAM_DSIZE_MASK; + + /* Note that density is in MB units */ + switch (pBankInfo->deviceDensity) + { + case 128: /* 128 Mbit */ + DB(mvOsPrintf("DRAM Device Density 128Mbit\n")); + addrCtrl |= SDRAM_DSIZE_128Mb; + break; + case 256: /* 256 Mbit */ + DB(mvOsPrintf("DRAM Device Density 256Mbit\n")); + addrCtrl |= SDRAM_DSIZE_256Mb; + break; + case 512: /* 512 Mbit */ + DB(mvOsPrintf("DRAM Device Density 512Mbit\n")); + addrCtrl |= SDRAM_DSIZE_512Mb; + break; + default: + mvOsPrintf("Dram: sdramAddrCtrl unsupported RAM-Device size %d\n", + pBankInfo->deviceDensity); + return -1; + } + + /* SDRAM address control */ + DB(mvOsPrintf("Dram: setting sdram address control with: %x \n", addrCtrl)); + + return addrCtrl; +} + +/******************************************************************************* +* sdramTimeCtrlLowRegCalc - Calculate sdram timing control low register +* +* DESCRIPTION: +* This function calculates sdram timing control low register +* optimized value based on the bank info parameters and the minCas. +* +* INPUT: +* pBankInfo - sdram bank parameters +* busClk - Bus clock +* +* OUTPUT: +* None +* +* RETURN: +* sdram timinf control low reg value. +* +*******************************************************************************/ +static MV_U32 sdramTimeCtrlLowRegCalc(MV_DRAM_BANK_INFO *pBankInfo, + MV_U32 minCas, MV_U32 busClk) +{ + MV_U32 tRp = 0; + MV_U32 tRrd = 0; + MV_U32 tRcd = 0; + MV_U32 tRas = 0; + MV_U32 tWr = 0; + MV_U32 tWtr = 0; + MV_U32 tRtp = 0; + + MV_U32 bankNum; + + busClk = busClk / 1000000; /* In MHz */ + + /* Scan all DRAM banks to find maximum timing values */ + for (bankNum = 0; bankNum < MV_DRAM_MAX_CS; bankNum++) + { + tRp = MV_MAX(tRp, pBankInfo[bankNum].minRowPrechargeTime); + tRrd = MV_MAX(tRrd, pBankInfo[bankNum].minRowActiveToRowActive); + tRcd = MV_MAX(tRcd, pBankInfo[bankNum].minRasToCasDelay); + tRas = MV_MAX(tRas, pBankInfo[bankNum].minRasPulseWidth); + } + + /* Extract timing (in ns) from SPD value. We ignore the tenth ns part. */ + /* by shifting the data two bits right. */ + tRp = tRp >> 2; /* For example 0x50 -> 20ns */ + tRrd = tRrd >> 2; + tRcd = tRcd >> 2; + + /* Extract clock cycles from time parameter. We need to round up */ + tRp = ((busClk * tRp) / 1000) + (((busClk * tRp) % 1000) ? 1 : 0); + /* Micron work around for 133MHz */ + if (busClk == 133) + tRp += 1; + DB(mvOsPrintf("Dram Timing Low: tRp = %d ", tRp)); + tRrd = ((busClk * tRrd) / 1000) + (((busClk * tRrd) % 1000) ? 1 : 0); + /* JEDEC min reqeirments tRrd = 2 */ + if (tRrd < 2) + tRrd = 2; + DB(mvOsPrintf("tRrd = %d ", tRrd)); + tRcd = ((busClk * tRcd) / 1000) + (((busClk * tRcd) % 1000) ? 1 : 0); + DB(mvOsPrintf("tRcd = %d ", tRcd)); + tRas = ((busClk * tRas) / 1000) + (((busClk * tRas) % 1000) ? 1 : 0); + DB(mvOsPrintf("tRas = %d ", tRas)); + + /* tWr and tWtr is different for DDR1 and DDR2. tRtp is only for DDR2 */ + if (MV_REG_READ(SDRAM_CONFIG_REG) & SDRAM_DTYPE_DDR2) + { + /* Scan all DRAM banks to find maximum timing values */ + for (bankNum = 0; bankNum < MV_DRAM_MAX_CS; bankNum++) + { + tWr = MV_MAX(tWr, pBankInfo[bankNum].minWriteRecoveryTime); + tWtr = MV_MAX(tWtr, pBankInfo[bankNum].minWriteToReadCmdDelay); + tRtp = MV_MAX(tRtp, pBankInfo[bankNum].minReadToPrechCmdDelay); + } + + /* Extract timing (in ns) from SPD value. We ignore the tenth ns */ + /* part by shifting the data two bits right. */ + tWr = tWr >> 2; /* For example 0x50 -> 20ns */ + tWtr = tWtr >> 2; + tRtp = tRtp >> 2; + + /* Extract clock cycles from time parameter. We need to round up */ + tWr = ((busClk * tWr) / 1000) + (((busClk * tWr) % 1000) ? 1 : 0); + DB(mvOsPrintf("tWr = %d ", tWr)); + tWtr = ((busClk * tWtr) / 1000) + (((busClk * tWtr) % 1000) ? 1 : 0); + /* JEDEC min reqeirments tWtr = 2 */ + if (tWtr < 2) + tWtr = 2; + DB(mvOsPrintf("tWtr = %d ", tWtr)); + tRtp = ((busClk * tRtp) / 1000) + (((busClk * tRtp) % 1000) ? 1 : 0); + /* JEDEC min reqeirments tRtp = 2 */ + if (tRtp < 2) + tRtp = 2; + DB(mvOsPrintf("tRtp = %d ", tRtp)); + } + else + { + tWr = ((busClk*SDRAM_TWR) / 1000) + (((busClk*SDRAM_TWR) % 1000)?1:0); + + if ((200 == busClk) || ((100 == busClk) && (DDR1_CL_1_5 == minCas))) + { + tWtr = 2; + } + else + { + tWtr = 1; + } + + tRtp = 2; /* Must be set to 0x1 (two cycles) when using DDR1 */ + } + + DB(mvOsPrintf("tWtr = %d\n", tWtr)); + + /* Note: value of 0 in register means one cycle, 1 means two and so on */ + return (((tRp - 1) << SDRAM_TRP_OFFS) | + ((tRrd - 1) << SDRAM_TRRD_OFFS) | + ((tRcd - 1) << SDRAM_TRCD_OFFS) | + ((tRas - 1) << SDRAM_TRAS_OFFS) | + ((tWr - 1) << SDRAM_TWR_OFFS) | + ((tWtr - 1) << SDRAM_TWTR_OFFS) | + ((tRtp - 1) << SDRAM_TRTP_OFFS)); +} + +/******************************************************************************* +* sdramTimeCtrlHighRegCalc - Calculate sdram timing control high register +* +* DESCRIPTION: +* This function calculates sdram timing control high register +* optimized value based on the bank info parameters and the bus clock. +* +* INPUT: +* pBankInfo - sdram bank parameters +* busClk - Bus clock +* +* OUTPUT: +* None +* +* RETURN: +* sdram timinf control high reg value. +* +*******************************************************************************/ +static MV_U32 sdramTimeCtrlHighRegCalc(MV_DRAM_BANK_INFO *pBankInfo, + MV_U32 busClk) +{ + MV_U32 tRfc; + MV_U32 timeNs = 0; + int bankNum; + MV_U32 sdramTw2wCyc = 0; + + busClk = busClk / 1000000; /* In MHz */ + + /* tRfc is different for DDR1 and DDR2. */ + if (MV_REG_READ(SDRAM_CONFIG_REG) & SDRAM_DTYPE_DDR2) + { + MV_U32 bankNum; + + /* Scan all DRAM banks to find maximum timing values */ + for (bankNum = 0; bankNum < MV_DRAM_MAX_CS; bankNum++) + timeNs = MV_MAX(timeNs, pBankInfo[bankNum].minRefreshToActiveCmd); + } + else + { + if (pBankInfo[0].deviceDensity == _1G) + { + timeNs = SDRAM_TRFC_1G; + } + else + { + if (200 == busClk) + { + timeNs = SDRAM_TRFC_64_512M_AT_200MHZ; + } + else + { + timeNs = SDRAM_TRFC_64_512M; + } + } + } + + tRfc = ((busClk * timeNs) / 1000) + (((busClk * timeNs) % 1000) ? 1 : 0); + + DB(mvOsPrintf("Dram Timing High: tRfc = %d\n", tRfc)); + + + /* Represent the populate banks in binary form */ + for(bankNum = 0; bankNum < MV_DRAM_MAX_CS; bankNum++) + { + if (0 != pBankInfo[bankNum].size) + sdramTw2wCyc++; + } + + /* If we have more the 1 bank then we need the TW2W in 1 for ODT switch */ + if (sdramTw2wCyc > 1) + sdramTw2wCyc = 1; + else + sdramTw2wCyc = 0; + + /* Note: value of 0 in register means one cycle, 1 means two and so on */ + return ((((tRfc - 1) & SDRAM_TRFC_MASK) << SDRAM_TRFC_OFFS) | + ((SDRAM_TR2R_CYC - 1) << SDRAM_TR2R_OFFS) | + ((SDRAM_TR2WW2R_CYC - 1) << SDRAM_TR2W_W2R_OFFS) | + (((tRfc - 1) >> 4) << SDRAM_TRFC_EXT_OFFS) | + (sdramTw2wCyc << SDRAM_TW2W_OFFS)); + +} + +/******************************************************************************* +* sdramDDr2OdtConfig - Set DRAM DDR2 On Die Termination registers. +* +* DESCRIPTION: +* This function config DDR2 On Die Termination (ODT) registers. +* ODT configuration is done according to DIMM presence: +* +* Presence Ctrl Low Ctrl High Dunit Ctrl Ext Mode +* CS0 0x84210000 0x00000000 0x0000780F 0x00000440 +* CS0+CS1 0x84210000 0x00000000 0x0000780F 0x00000440 +* CS0+CS2 0x030C030C 0x00000000 0x0000740F 0x00000404 +* CS0+CS1+CS2 0x030C030C 0x00000000 0x0000740F 0x00000404 +* CS0+CS2+CS3 0x030C030C 0x00000000 0x0000740F 0x00000404 +* CS0+CS1+CS2+CS3 0x030C030C 0x00000000 0x0000740F 0x00000404 +* +* INPUT: +* pBankInfo - bank info parameters. +* +* OUTPUT: +* None +* +* RETURN: +* None +*******************************************************************************/ +static void sdramDDr2OdtConfig(MV_DRAM_BANK_INFO *pBankInfo) +{ + MV_U32 populateBanks = 0; + MV_U32 odtCtrlLow, odtCtrlHigh, dunitOdtCtrl; + int bankNum; + + /* Represent the populate banks in binary form */ + for(bankNum = 0; bankNum < MV_DRAM_MAX_CS; bankNum++) + { + if (0 != pBankInfo[bankNum].size) + { + populateBanks |= (1 << bankNum); + } + } + + switch(populateBanks) + { + case(BANK_PRESENT_CS0): + odtCtrlLow = DDR2_ODT_CTRL_LOW_CS0_DV; + odtCtrlHigh = DDR2_ODT_CTRL_HIGH_CS0_DV; + dunitOdtCtrl = DDR2_DUNIT_ODT_CTRL_CS0_DV; + break; + case(BANK_PRESENT_CS0_CS1): + odtCtrlLow = DDR2_ODT_CTRL_LOW_CS0_DV; + odtCtrlHigh = DDR2_ODT_CTRL_HIGH_CS0_DV; + dunitOdtCtrl = DDR2_DUNIT_ODT_CTRL_CS0_DV; + break; + case(BANK_PRESENT_CS0_CS2): + odtCtrlLow = DDR2_ODT_CTRL_LOW_CS0_CS2_DV; + odtCtrlHigh = DDR2_ODT_CTRL_HIGH_CS0_CS2_DV; + dunitOdtCtrl = DDR2_DUNIT_ODT_CTRL_CS0_CS2_DV; + break; + case(BANK_PRESENT_CS0_CS1_CS2): + odtCtrlLow = DDR2_ODT_CTRL_LOW_CS0_CS2_DV; + odtCtrlHigh = DDR2_ODT_CTRL_HIGH_CS0_CS2_DV; + dunitOdtCtrl = DDR2_DUNIT_ODT_CTRL_CS0_CS2_DV; + break; + case(BANK_PRESENT_CS0_CS2_CS3): + odtCtrlLow = DDR2_ODT_CTRL_LOW_CS0_CS2_DV; + odtCtrlHigh = DDR2_ODT_CTRL_HIGH_CS0_CS2_DV; + dunitOdtCtrl = DDR2_DUNIT_ODT_CTRL_CS0_CS2_DV; + break; + case(BANK_PRESENT_CS0_CS2_CS3_CS4): + odtCtrlLow = DDR2_ODT_CTRL_LOW_CS0_CS2_DV; + odtCtrlHigh = DDR2_ODT_CTRL_HIGH_CS0_CS2_DV; + dunitOdtCtrl = DDR2_DUNIT_ODT_CTRL_CS0_CS2_DV; + break; + default: + mvOsPrintf("sdramDDr2OdtConfig: Invalid DRAM bank presence\n"); + return; + } + MV_REG_WRITE(DRAM_BUF_REG7, odtCtrlLow); + MV_REG_WRITE(DRAM_BUF_REG8, odtCtrlHigh); + MV_REG_WRITE(DRAM_BUF_REG9, dunitOdtCtrl); + return; +} +#endif /* defined(MV_INC_BOARD_DDIM) */ + +/******************************************************************************* +* mvDramIfWinSet - Set DRAM interface address decode window +* +* DESCRIPTION: +* This function sets DRAM interface address decode window. +* +* INPUT: +* target - System target. Use only SDRAM targets. +* pAddrDecWin - SDRAM address window structure. +* +* OUTPUT: +* None +* +* RETURN: +* MV_BAD_PARAM if parameters are invalid or window is invalid, MV_OK +* otherwise. +*******************************************************************************/ +MV_STATUS mvDramIfWinSet(MV_TARGET target, MV_DRAM_DEC_WIN *pAddrDecWin) +{ + MV_U32 baseReg=0,sizeReg=0; + MV_U32 baseToReg=0 , sizeToReg=0; + + /* Check parameters */ + if (!MV_TARGET_IS_DRAM(target)) + { + mvOsPrintf("mvDramIfWinSet: target %d is not SDRAM\n", target); + return MV_BAD_PARAM; + } + + /* Check if the requested window overlaps with current enabled windows */ + if (MV_TRUE == sdramIfWinOverlap(target, &pAddrDecWin->addrWin)) + { + mvOsPrintf("mvDramIfWinSet: ERR. Target %d overlaps\n", target); + return MV_BAD_PARAM; + } + + /* check if address is aligned to the size */ + if(MV_IS_NOT_ALIGN(pAddrDecWin->addrWin.baseLow, pAddrDecWin->addrWin.size)) + { + mvOsPrintf("mvDramIfWinSet:Error setting DRAM interface window %d."\ + "\nAddress 0x%08x is unaligned to size 0x%x.\n", + target, + pAddrDecWin->addrWin.baseLow, + pAddrDecWin->addrWin.size); + return MV_ERROR; + } + + /* read base register*/ + baseReg = MV_REG_READ(SDRAM_BASE_ADDR_REG(target)); + + /* read size register */ + sizeReg = MV_REG_READ(SDRAM_SIZE_REG(target)); + + /* BaseLow[31:16] => base register [31:16] */ + baseToReg = pAddrDecWin->addrWin.baseLow & SCBAR_BASE_MASK; + + /* Write to address decode Base Address Register */ + baseReg &= ~SCBAR_BASE_MASK; + baseReg |= baseToReg; + + /* Translate the given window size to register format */ + sizeToReg = ctrlSizeToReg(pAddrDecWin->addrWin.size, SCSR_SIZE_ALIGNMENT); + + /* Size parameter validity check. */ + if (-1 == sizeToReg) + { + mvOsPrintf("mvCtrlAddrDecToReg: ERR. Win %d size invalid.\n",target); + return MV_BAD_PARAM; + } + + /* set size */ + sizeReg &= ~SCSR_SIZE_MASK; + /* Size is located at upper 16 bits */ + sizeReg |= (sizeToReg << SCSR_SIZE_OFFS); + + /* enable/Disable */ + if (MV_TRUE == pAddrDecWin->enable) + { + sizeReg |= SCSR_WIN_EN; + } + else + { + sizeReg &= ~SCSR_WIN_EN; + } + + /* 3) Write to address decode Base Address Register */ + MV_REG_WRITE(SDRAM_BASE_ADDR_REG(target), baseReg); + + /* Write to address decode Size Register */ + MV_REG_WRITE(SDRAM_SIZE_REG(target), sizeReg); + + return MV_OK; +} +/******************************************************************************* +* mvDramIfWinGet - Get DRAM interface address decode window +* +* DESCRIPTION: +* This function gets DRAM interface address decode window. +* +* INPUT: +* target - System target. Use only SDRAM targets. +* +* OUTPUT: +* pAddrDecWin - SDRAM address window structure. +* +* RETURN: +* MV_BAD_PARAM if parameters are invalid or window is invalid, MV_OK +* otherwise. +*******************************************************************************/ +MV_STATUS mvDramIfWinGet(MV_TARGET target, MV_DRAM_DEC_WIN *pAddrDecWin) +{ + MV_U32 baseReg,sizeReg; + MV_U32 sizeRegVal; + + /* Check parameters */ + if (!MV_TARGET_IS_DRAM(target)) + { + mvOsPrintf("mvDramIfWinGet: target %d is Illigal\n", target); + return MV_ERROR; + } + + /* Read base and size registers */ + sizeReg = MV_REG_READ(SDRAM_SIZE_REG(target)); + baseReg = MV_REG_READ(SDRAM_BASE_ADDR_REG(target)); + + sizeRegVal = (sizeReg & SCSR_SIZE_MASK) >> SCSR_SIZE_OFFS; + + pAddrDecWin->addrWin.size = ctrlRegToSize(sizeRegVal, + SCSR_SIZE_ALIGNMENT); + + /* Check if ctrlRegToSize returned OK */ + if (-1 == pAddrDecWin->addrWin.size) + { + mvOsPrintf("mvDramIfWinGet: size of target %d is Illigal\n", target); + return MV_ERROR; + } + + /* Extract base address */ + /* Base register [31:16] ==> baseLow[31:16] */ + pAddrDecWin->addrWin.baseLow = baseReg & SCBAR_BASE_MASK; + + pAddrDecWin->addrWin.baseHigh = 0; + + + if (sizeReg & SCSR_WIN_EN) + { + pAddrDecWin->enable = MV_TRUE; + } + else + { + pAddrDecWin->enable = MV_FALSE; + } + + return MV_OK; +} +/******************************************************************************* +* mvDramIfWinEnable - Enable/Disable SDRAM address decode window +* +* DESCRIPTION: +* This function enable/Disable SDRAM address decode window. +* +* INPUT: +* target - System target. Use only SDRAM targets. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_ERROR in case function parameter are invalid, MV_OK otherewise. +* +*******************************************************************************/ +MV_STATUS mvDramIfWinEnable(MV_TARGET target,MV_BOOL enable) +{ + MV_DRAM_DEC_WIN addrDecWin; + + /* Check parameters */ + if (!MV_TARGET_IS_DRAM(target)) + { + mvOsPrintf("mvDramIfWinEnable: target %d is Illigal\n", target); + return MV_ERROR; + } + + if (enable == MV_TRUE) + { /* First check for overlap with other enabled windows */ + if (MV_OK != mvDramIfWinGet(target, &addrDecWin)) + { + mvOsPrintf("mvDramIfWinEnable:ERR. Getting target %d failed.\n", + target); + return MV_ERROR; + } + /* Check for overlapping */ + if (MV_FALSE == sdramIfWinOverlap(target, &(addrDecWin.addrWin))) + { + /* No Overlap. Enable address decode winNum window */ + MV_REG_BIT_SET(SDRAM_SIZE_REG(target), SCSR_WIN_EN); + } + else + { /* Overlap detected */ + mvOsPrintf("mvDramIfWinEnable: ERR. Target %d overlap detect\n", + target); + return MV_ERROR; + } + } + else + { /* Disable address decode winNum window */ + MV_REG_BIT_RESET(SDRAM_SIZE_REG(target), SCSR_WIN_EN); + } + + return MV_OK; +} + +/******************************************************************************* +* sdramIfWinOverlap - Check if an address window overlap an SDRAM address window +* +* DESCRIPTION: +* This function scan each SDRAM address decode window to test if it +* overlapps the given address windoow +* +* INPUT: +* target - SDRAM target where the function skips checking. +* pAddrDecWin - The tested address window for overlapping with +* SDRAM windows. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_TRUE if the given address window overlaps any enabled address +* decode map, MV_FALSE otherwise. +* +*******************************************************************************/ +static MV_BOOL sdramIfWinOverlap(MV_TARGET target, MV_ADDR_WIN *pAddrWin) +{ + MV_TARGET targetNum; + MV_DRAM_DEC_WIN addrDecWin; + + for(targetNum = SDRAM_CS0; targetNum < MV_DRAM_MAX_CS ; targetNum++) + { + /* don't check our winNum or illegal targets */ + if (targetNum == target) + { + continue; + } + + /* Get window parameters */ + if (MV_OK != mvDramIfWinGet(targetNum, &addrDecWin)) + { + mvOsPrintf("sdramIfWinOverlap: ERR. TargetWinGet failed\n"); + return MV_ERROR; + } + + /* Do not check disabled windows */ + if (MV_FALSE == addrDecWin.enable) + { + continue; + } + + if(MV_TRUE == ctrlWinOverlapTest(pAddrWin, &addrDecWin.addrWin)) + { + mvOsPrintf( + "sdramIfWinOverlap: Required target %d overlap winNum %d\n", + target, targetNum); + return MV_TRUE; + } + } + + return MV_FALSE; +} + +/******************************************************************************* +* mvDramIfBankSizeGet - Get DRAM interface bank size. +* +* DESCRIPTION: +* This function returns the size of a given DRAM bank. +* +* INPUT: +* bankNum - Bank number. +* +* OUTPUT: +* None. +* +* RETURN: +* DRAM bank size. If bank is disabled the function return '0'. In case +* or paramter is invalid, the function returns -1. +* +*******************************************************************************/ +MV_32 mvDramIfBankSizeGet(MV_U32 bankNum) +{ + MV_DRAM_DEC_WIN addrDecWin; + + /* Check parameters */ + if (!MV_TARGET_IS_DRAM(bankNum)) + { + mvOsPrintf("mvDramIfBankBaseGet: bankNum %d is invalid\n", bankNum); + return -1; + } + /* Get window parameters */ + if (MV_OK != mvDramIfWinGet(bankNum, &addrDecWin)) + { + mvOsPrintf("sdramIfWinOverlap: ERR. TargetWinGet failed\n"); + return -1; + } + + if (MV_TRUE == addrDecWin.enable) + { + return addrDecWin.addrWin.size; + } + else + { + return 0; + } +} + + +/******************************************************************************* +* mvDramIfSizeGet - Get DRAM interface total size. +* +* DESCRIPTION: +* This function get the DRAM total size. +* +* INPUT: +* None. +* +* OUTPUT: +* None. +* +* RETURN: +* DRAM total size. In case or paramter is invalid, the function +* returns -1. +* +*******************************************************************************/ +MV_32 mvDramIfSizeGet(MV_VOID) +{ + MV_U32 totalSize = 0, bankSize = 0, bankNum; + + for(bankNum = 0; bankNum < MV_DRAM_MAX_CS; bankNum++) + { + bankSize = mvDramIfBankSizeGet(bankNum); + + if (-1 == bankSize) + { + mvOsPrintf("Dram: mvDramIfSizeGet error with bank %d \n",bankNum); + return -1; + } + else + { + totalSize += bankSize; + } + } + + DB(mvOsPrintf("Dram: Total DRAM size is 0x%x \n",totalSize)); + + return totalSize; +} + +/******************************************************************************* +* mvDramIfBankBaseGet - Get DRAM interface bank base. +* +* DESCRIPTION: +* This function returns the 32 bit base address of a given DRAM bank. +* +* INPUT: +* bankNum - Bank number. +* +* OUTPUT: +* None. +* +* RETURN: +* DRAM bank size. If bank is disabled or paramter is invalid, the +* function returns -1. +* +*******************************************************************************/ +MV_32 mvDramIfBankBaseGet(MV_U32 bankNum) +{ + MV_DRAM_DEC_WIN addrDecWin; + + /* Check parameters */ + if (!MV_TARGET_IS_DRAM(bankNum)) + { + mvOsPrintf("mvDramIfBankBaseGet: bankNum %d is invalid\n", bankNum); + return -1; + } + /* Get window parameters */ + if (MV_OK != mvDramIfWinGet(bankNum, &addrDecWin)) + { + mvOsPrintf("sdramIfWinOverlap: ERR. TargetWinGet failed\n"); + return -1; + } + + if (MV_TRUE == addrDecWin.enable) + { + return addrDecWin.addrWin.baseLow; + } + else + { + return -1; + } +} + + |