--- /dev/null
+/*******************************************************************************
+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
+};\r
+
+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" );
+ }
+ }
+}
+
projects / 15.05 / openwrt.git / blobdiff