diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysDram.c')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysDram.c | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysDram.c b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysDram.c new file mode 100644 index 000000000..6f76c2caa --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysDram.c @@ -0,0 +1,348 @@ +/******************************************************************************* +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 "ddr2/mvDramIf.h" +#include "ctrlEnv/sys/mvCpuIf.h" +#include "ctrlEnv/sys/mvSysDram.h" + +/* #define MV_DEBUG */ +#ifdef MV_DEBUG +#define DB(x) x +#else +#define DB(x) +#endif + +static MV_BOOL sdramIfWinOverlap(MV_TARGET target, MV_ADDR_WIN *pAddrWin); + +/******************************************************************************* +* 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(0,target)); + + /* read size register */ + sizeReg = MV_REG_READ(SDRAM_SIZE_REG(0,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(0,target), baseReg); + + /* Write to address decode Size Register */ + MV_REG_WRITE(SDRAM_SIZE_REG(0,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(0,target)); + baseReg = MV_REG_READ(SDRAM_BASE_ADDR_REG(0,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(0,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(0, 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; +} + |