diff options
Diffstat (limited to 'target/linux/generic-2.6/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysTdm.c')
-rw-r--r-- | target/linux/generic-2.6/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysTdm.c | 462 |
1 files changed, 462 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysTdm.c b/target/linux/generic-2.6/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysTdm.c new file mode 100644 index 0000000000..27b961a265 --- /dev/null +++ b/target/linux/generic-2.6/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysTdm.c @@ -0,0 +1,462 @@ +/******************************************************************************* +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 "mvSysTdm.h" + + +/* defines */ +#ifdef MV_DEBUG + #define DB(x) x +#else + #define DB(x) +#endif + +static MV_TARGET tdmAddrDecPrioTap[] = +{ + PEX0_MEM, + SDRAM_CS0, + SDRAM_CS1, + SDRAM_CS2, + SDRAM_CS3, + DEVICE_CS0, + DEVICE_CS1, + DEVICE_CS2, + DEV_BOOCS, + PEX0_IO, + TBL_TERM +}; + +static MV_STATUS tdmWinOverlapDetect(MV_U32 winNum, MV_ADDR_WIN *pAddrWin); + +/******************************************************************************* +* mvTdmWinInit - Initialize TDM address decode windows +* +* DESCRIPTION: +* This function initialize TDM window decode unit. It set the +* default address decode +* windows of the unit. +* +* INPUT: +* None. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_ERROR if setting fail. +*******************************************************************************/ + +MV_STATUS mvTdmWinInit(void) +{ + MV_U32 winNum; + MV_U32 winPrioIndex = 0; + MV_CPU_DEC_WIN cpuAddrDecWin; + MV_TDM_DEC_WIN tdmWin; + MV_STATUS status; + + /*Disable all windows*/ + for (winNum = 0; winNum < TDM_MBUS_MAX_WIN; winNum++) + { + mvTdmWinEnable(winNum, MV_FALSE); + } + + for (winNum = 0; ((tdmAddrDecPrioTap[winPrioIndex] != TBL_TERM) && + (winNum < TDM_MBUS_MAX_WIN)); ) + { + status = mvCpuIfTargetWinGet(tdmAddrDecPrioTap[winPrioIndex], + &cpuAddrDecWin); + if (MV_NO_SUCH == status) + { + winPrioIndex++; + continue; + } + if (MV_OK != status) + { + mvOsPrintf("mvTdmInit: ERR. mvCpuIfTargetWinGet failed\n"); + return MV_ERROR; + } + + if (cpuAddrDecWin.enable == MV_TRUE) + { + tdmWin.addrWin.baseHigh = cpuAddrDecWin.addrWin.baseHigh; + tdmWin.addrWin.baseLow = cpuAddrDecWin.addrWin.baseLow; + tdmWin.addrWin.size = cpuAddrDecWin.addrWin.size; + tdmWin.enable = MV_TRUE; + tdmWin.target = tdmAddrDecPrioTap[winPrioIndex]; + if (MV_OK != mvTdmWinSet(winNum, &tdmWin)) + { + return MV_ERROR; + } + winNum++; + } + winPrioIndex++; + } + return MV_OK; +} + +/******************************************************************************* +* mvTdmWinSet - Set TDM target address window +* +* DESCRIPTION: +* This function sets a peripheral target (e.g. SDRAM bank0, PCI_MEM0) +* address window, also known as address decode window. +* After setting this target window, the TDM will be able to access the +* target within the address window. +* +* INPUT: +* winNum - TDM to target address decode window number. +* pAddrDecWin - TDM target window data structure. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_ERROR if address window overlapps with other address decode windows. +* MV_BAD_PARAM if base address is invalid parameter or target is +* unknown. +* +*******************************************************************************/ + +MV_STATUS mvTdmWinSet(MV_U32 winNum, MV_TDM_DEC_WIN *pAddrDecWin) +{ + MV_TARGET_ATTRIB targetAttribs; + MV_DEC_REGS decRegs; + MV_U32 ctrlReg = 0; + + /* Parameter checking */ + if (winNum >= TDM_MBUS_MAX_WIN) + { + mvOsPrintf("mvTdmWinSet: ERR. Invalid win num %d\n",winNum); + return MV_BAD_PARAM; + } + + /* Check if the requested window overlapps with current windows */ + if (MV_TRUE == tdmWinOverlapDetect(winNum, &pAddrDecWin->addrWin)) + { + mvOsPrintf("mvTdmWinSet: ERR. Window %d overlap\n", winNum); + return MV_ERROR; + } + + /* check if address is aligned to the size */ + if (MV_IS_NOT_ALIGN(pAddrDecWin->addrWin.baseLow, pAddrDecWin->addrWin.size)) + { + mvOsPrintf("mvTdmWinSet: Error setting TDM window %d to "\ + "target %s.\nAddress 0x%08x is unaligned to size 0x%x.\n", + winNum, + mvCtrlTargetNameGet(pAddrDecWin->target), + pAddrDecWin->addrWin.baseLow, + pAddrDecWin->addrWin.size); + return MV_ERROR; + } + + decRegs.baseReg = MV_REG_READ(TDM_WIN_BASE_REG(winNum)); + decRegs.sizeReg = (MV_REG_READ(TDM_WIN_CTRL_REG(winNum)) & TDM_WIN_SIZE_MASK) >> TDM_WIN_SIZE_OFFS; + + if (MV_OK != mvCtrlAddrDecToReg(&(pAddrDecWin->addrWin),&decRegs)) + { + mvOsPrintf("mvTdmWinSet: mvCtrlAddrDecToReg Failed\n"); + return MV_ERROR; + } + + mvCtrlAttribGet(pAddrDecWin->target, &targetAttribs); + + /* for the safe side we disable the window before writing the new + values */ + mvTdmWinEnable(winNum, MV_FALSE); + + ctrlReg |= (targetAttribs.attrib << TDM_WIN_ATTRIB_OFFS); + ctrlReg |= (targetAttribs.targetId << TDM_WIN_TARGET_OFFS); + ctrlReg |= (decRegs.sizeReg & TDM_WIN_SIZE_MASK); + + /* Write to address base and control registers */ + MV_REG_WRITE(TDM_WIN_BASE_REG(winNum), decRegs.baseReg); + MV_REG_WRITE(TDM_WIN_CTRL_REG(winNum), ctrlReg); + /* Enable address decode target window */ + if (pAddrDecWin->enable == MV_TRUE) + { + mvTdmWinEnable(winNum, MV_TRUE); + } + return MV_OK; +} + +/******************************************************************************* +* mvTdmWinGet - Get peripheral target address window. +* +* DESCRIPTION: +* Get TDM peripheral target address window. +* +* INPUT: +* winNum - TDM to target address decode window number. +* +* OUTPUT: +* pAddrDecWin - TDM target window data structure. +* +* RETURN: +* MV_ERROR if register parameters are invalid. +* +*******************************************************************************/ + +MV_STATUS mvTdmWinGet(MV_U32 winNum, MV_TDM_DEC_WIN *pAddrDecWin) +{ + + MV_DEC_REGS decRegs; + MV_TARGET_ATTRIB targetAttrib; + + /* Parameter checking */ + if (winNum >= TDM_MBUS_MAX_WIN) + { + mvOsPrintf("mvTdmWinGet: ERR. Invalid winNum %d\n", winNum); + return MV_NOT_SUPPORTED; + } + + decRegs.baseReg = MV_REG_READ(TDM_WIN_BASE_REG(winNum)); + decRegs.sizeReg = (MV_REG_READ(TDM_WIN_CTRL_REG(winNum)) & TDM_WIN_SIZE_MASK) >> TDM_WIN_SIZE_OFFS; + + if (MV_OK != mvCtrlRegToAddrDec(&decRegs,&(pAddrDecWin->addrWin))) + { + mvOsPrintf("mvTdmWinGet: mvCtrlRegToAddrDec Failed \n"); + return MV_ERROR; + } + + /* attrib and targetId */ + targetAttrib.attrib = + (MV_REG_READ(TDM_WIN_CTRL_REG(winNum)) & TDM_WIN_ATTRIB_MASK) >> TDM_WIN_ATTRIB_OFFS; + targetAttrib.targetId = + (MV_REG_READ(TDM_WIN_CTRL_REG(winNum)) & TDM_WIN_TARGET_MASK) >> TDM_WIN_TARGET_OFFS; + + pAddrDecWin->target = mvCtrlTargetGet(&targetAttrib); + + /* Check if window is enabled */ + if (MV_REG_READ(TDM_WIN_CTRL_REG(winNum)) & TDM_WIN_ENABLE_MASK) + { + pAddrDecWin->enable = MV_TRUE; + } + else + { + pAddrDecWin->enable = MV_FALSE; + } + + return MV_OK; +} + +/******************************************************************************* +* mvTdmWinEnable - Enable/disable a TDM to target address window +* +* DESCRIPTION: +* This function enable/disable a TDM to target address window. +* According to parameter 'enable' the routine will enable the +* window, thus enabling TDM accesses (before enabling the window it is +* tested for overlapping). Otherwise, the window will be disabled. +* +* INPUT: +* winNum - TDM to target address decode window number. +* enable - Enable/disable parameter. +* +* OUTPUT: +* N/A +* +* RETURN: +* MV_ERROR if decode window number was wrong or enabled window overlapps. +* +*******************************************************************************/ +MV_STATUS mvTdmWinEnable(int winNum, MV_BOOL enable) +{ + MV_TDM_DEC_WIN addrDecWin; + + if (MV_TRUE == enable) + { + if (winNum >= TDM_MBUS_MAX_WIN) + { + mvOsPrintf("mvTdmWinEnable:ERR. Invalid winNum%d\n",winNum); + return MV_ERROR; + } + + /* First check for overlap with other enabled windows */ + /* Get current window */ + if (MV_OK != mvTdmWinGet(winNum, &addrDecWin)) + { + mvOsPrintf("mvTdmWinEnable:ERR. targetWinGet fail\n"); + return MV_ERROR; + } + /* Check for overlapping */ + if (MV_FALSE == tdmWinOverlapDetect(winNum, &(addrDecWin.addrWin))) + { + /* No Overlap. Enable address decode target window */ + MV_REG_BIT_SET(TDM_WIN_CTRL_REG(winNum), TDM_WIN_ENABLE_MASK); + } + else + { /* Overlap detected */ + mvOsPrintf("mvTdmWinEnable:ERR. Overlap detected\n"); + return MV_ERROR; + } + } + else + { + MV_REG_BIT_RESET(TDM_WIN_CTRL_REG(winNum), TDM_WIN_ENABLE_MASK); + } + return MV_OK; +} + + +/******************************************************************************* +* tdmWinOverlapDetect - Detect TDM address windows overlapping +* +* DESCRIPTION: +* An unpredicted behaviour is expected in case TDM address decode +* windows overlapps. +* This function detects TDM address decode windows overlapping of a +* specified window. The function does not check the window itself for +* overlapping. The function also skipps disabled address decode windows. +* +* INPUT: +* winNum - address decode window number. +* pAddrDecWin - An address decode window struct. +* +* OUTPUT: +* None. +* +* RETURN: +* MV_TRUE if the given address window overlap current address +* decode map, MV_FALSE otherwise, MV_ERROR if reading invalid data +* from registers. +* +*******************************************************************************/ +static MV_STATUS tdmWinOverlapDetect(MV_U32 winNum, MV_ADDR_WIN *pAddrWin) +{ + MV_U32 winNumIndex; + MV_TDM_DEC_WIN addrDecWin; + + for (winNumIndex = 0; winNumIndex < TDM_MBUS_MAX_WIN; winNumIndex++) + { + /* Do not check window itself */ + if (winNumIndex == winNum) + { + continue; + } + /* Do not check disabled windows */ + if (MV_REG_READ(TDM_WIN_CTRL_REG(winNum)) & TDM_WIN_ENABLE_MASK) + { + /* Get window parameters */ + if (MV_OK != mvTdmWinGet(winNumIndex, &addrDecWin)) + { + DB(mvOsPrintf("dmaWinOverlapDetect: ERR. TargetWinGet failed\n")); + return MV_ERROR; + } + + if (MV_TRUE == ctrlWinOverlapTest(pAddrWin, &(addrDecWin.addrWin))) + { + return MV_TRUE; + } + } + } + return MV_FALSE; +} + +/******************************************************************************* +* mvTdmAddrDecShow - Print the TDM address decode map. +* +* DESCRIPTION: +* This function print the TDM address decode map. +* +* INPUT: +* None. +* +* OUTPUT: +* None. +* +* RETURN: +* None. +* +*******************************************************************************/ +MV_VOID mvTdmAddrDecShow(MV_VOID) +{ + MV_TDM_DEC_WIN win; + int i; + + mvOsOutput( "\n" ); + mvOsOutput( "TDM:\n" ); + mvOsOutput( "----\n" ); + + for( i = 0; i < TDM_MBUS_MAX_WIN; i++ ) + { + memset( &win, 0, sizeof(MV_TDM_DEC_WIN) ); + + mvOsOutput( "win%d - ", i ); + + if (mvTdmWinGet(i, &win ) == MV_OK ) + { + if( win.enable ) + { + mvOsOutput( "%s base %08x, ", + mvCtrlTargetNameGet(win.target), win.addrWin.baseLow); + mvOsOutput( "...." ); + mvSizePrint( win.addrWin.size ); + mvOsOutput( "\n" ); + } + else + mvOsOutput( "disable\n" ); + } + } +} + |