| /******************************************************************************* |
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| ******************************************************************************** |
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| *******************************************************************************/ |
| |
| #include "mvCommon.h" |
| #include "mvOs.h" |
| #include "mvSysEthConfig.h" |
| |
| #include "mvNeta.h" |
| |
| MV_TARGET ethAddrDecPrioTab[] = { |
| #if defined(MV_INCLUDE_SDRAM_CS0) |
| SDRAM_CS0, |
| #endif |
| #if defined(MV_INCLUDE_SDRAM_CS1) |
| SDRAM_CS1, |
| #endif |
| #if defined(MV_INCLUDE_SDRAM_CS2) |
| SDRAM_CS2, |
| #endif |
| #if defined(MV_INCLUDE_SDRAM_CS3) |
| SDRAM_CS3, |
| #endif |
| #if defined(CONFIG_MV_ETH_BM) |
| PNC_BM, |
| #endif |
| TBL_TERM |
| }; |
| |
| static MV_STATUS ethWinOverlapDetect(MV_U32 port, MV_U32 winNum, MV_ADDR_WIN *pAddrWin); |
| |
| /******************************************************************************* |
| * mvNetaWinInit |
| * |
| * DESCRIPTION: |
| * This function initialize ETH window decode unit. It set the default |
| * address decode windows of the unit. |
| * |
| * INPUT: |
| * port : The port number to initialize the address decoding for. |
| * addWinMap: An array holding the address decoding information for the |
| * system. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * MV_ERROR if setting fail. |
| *******************************************************************************/ |
| MV_STATUS mvNetaWinInit(MV_U32 port, MV_UNIT_WIN_INFO *addrWinMap) |
| { |
| MV_U32 winNum, winPrioIndex = 0, i, regVal = 0; |
| MV_UNIT_WIN_INFO *addrDecWin; |
| MV_U32 accessProtReg = 0; |
| |
| /* Initiate Ethernet address decode */ |
| /* First disable all address decode windows */ |
| for (winNum = 0; winNum < ETH_MAX_DECODE_WIN; winNum++) |
| regVal |= MV_BIT_MASK(winNum); |
| |
| MV_REG_WRITE(ETH_BASE_ADDR_ENABLE_REG(port), regVal); |
| |
| /* Go through all windows in user table until table terminator */ |
| for (winNum = 0; ((ethAddrDecPrioTab[winPrioIndex] != TBL_TERM) && (winNum < ETH_MAX_DECODE_WIN));) { |
| addrDecWin = &addrWinMap[ethAddrDecPrioTab[winPrioIndex]]; |
| |
| if (addrDecWin->enable == MV_TRUE) { |
| if (MV_OK != mvNetaWinWrite(port, winNum, addrDecWin)) { |
| mvOsPrintf("mvNetaWinInit failed: winNum=%d (%d, %d)\n", |
| winNum, winPrioIndex, ethAddrDecPrioTab[winPrioIndex]); |
| return MV_ERROR; |
| } |
| winNum++; |
| } |
| winPrioIndex++; |
| } |
| |
| /* set full access to all windows. */ |
| for (i = 0; i < winNum; i++) |
| accessProtReg |= (FULL_ACCESS << (i * 2)); |
| |
| MV_REG_WRITE(ETH_ACCESS_PROTECT_REG(port), accessProtReg); |
| |
| return MV_OK; |
| } |
| |
| /******************************************************************************* |
| * mvNetaWinWrite |
| * |
| * DESCRIPTION: |
| * This function writes the address decoding registers according to the |
| * given window configuration. |
| * |
| * INPUT: |
| * unit - The Ethernet unit number to configure. |
| * winNum - ETH target address decode window number. |
| * pAddrDecWin - ETH target window data structure. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * MV_OK on success, |
| * MV_BAD_PARAM if winNum is invalid. |
| * MV_ERROR otherwise. |
| * |
| *******************************************************************************/ |
| MV_STATUS mvNetaWinWrite(MV_U32 port, MV_U32 winNum, MV_UNIT_WIN_INFO *pAddrDecWin) |
| { |
| MV_U32 size, alignment; |
| MV_U32 baseReg, sizeReg; |
| |
| /* Parameter checking */ |
| if (winNum >= ETH_MAX_DECODE_WIN) { |
| mvOsPrintf("mvNetaWinSet: ERR. Invalid win num %d\n", winNum); |
| return MV_BAD_PARAM; |
| } |
| |
| /* Check if the requested window overlapps with current windows */ |
| if (MV_TRUE == ethWinOverlapDetect(port, winNum, &pAddrDecWin->addrWin)) { |
| mvOsPrintf("mvNetaWinWrite: 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("mvNetaWinSet: Error setting Ethernet window %d.\n" |
| "Address 0x%08x is unaligned to size 0x%x.\n", |
| winNum, pAddrDecWin->addrWin.baseLow, pAddrDecWin->addrWin.size); |
| return MV_ERROR; |
| } |
| |
| size = pAddrDecWin->addrWin.size; |
| if (!MV_IS_POWER_OF_2(size)) { |
| mvOsPrintf("mvNetaWinWrite: Error setting AUDIO window %d. " |
| "Window size is not a power to 2.", winNum); |
| return MV_BAD_PARAM; |
| } |
| |
| baseReg = (pAddrDecWin->addrWin.baseLow & ETH_WIN_BASE_MASK); |
| sizeReg = MV_REG_READ(ETH_WIN_SIZE_REG(port, winNum)); |
| |
| /* set size */ |
| alignment = 1 << ETH_WIN_SIZE_OFFS; |
| sizeReg &= ~ETH_WIN_SIZE_MASK; |
| sizeReg |= (((size / alignment) - 1) << ETH_WIN_SIZE_OFFS); |
| |
| /* set attributes */ |
| baseReg &= ~ETH_WIN_ATTR_MASK; |
| baseReg |= pAddrDecWin->attrib << ETH_WIN_ATTR_OFFS; |
| |
| /* set target ID */ |
| baseReg &= ~ETH_WIN_TARGET_MASK; |
| baseReg |= pAddrDecWin->targetId << ETH_WIN_TARGET_OFFS; |
| |
| /* for the safe side we disable the window before writing the new |
| values */ |
| mvNetaWinEnable(port, winNum, MV_FALSE); |
| MV_REG_WRITE(ETH_WIN_BASE_REG(port, winNum), baseReg); |
| |
| /* Write to address decode Size Register */ |
| MV_REG_WRITE(ETH_WIN_SIZE_REG(port, winNum), sizeReg); |
| |
| /* Enable address decode target window */ |
| if (pAddrDecWin->enable == MV_TRUE) |
| mvNetaWinEnable(port, winNum, MV_TRUE); |
| |
| return MV_OK; |
| } |
| |
| /******************************************************************************* |
| * ethWinOverlapDetect - Detect ETH address windows overlapping |
| * |
| * DESCRIPTION: |
| * An unpredicted behaviur is expected in case ETH address decode |
| * windows overlapps. |
| * This function detects ETH 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 ethWinOverlapDetect(MV_U32 port, MV_U32 winNum, MV_ADDR_WIN *pAddrWin) |
| { |
| MV_U32 baseAddrEnableReg; |
| MV_U32 winNumIndex; |
| MV_UNIT_WIN_INFO addrDecWin; |
| |
| /* Read base address enable register. Do not check disabled windows */ |
| baseAddrEnableReg = MV_REG_READ(ETH_BASE_ADDR_ENABLE_REG(port)); |
| |
| for (winNumIndex = 0; winNumIndex < ETH_MAX_DECODE_WIN; winNumIndex++) { |
| /* Do not check window itself */ |
| if (winNumIndex == winNum) |
| continue; |
| |
| /* Do not check disabled windows */ |
| if (baseAddrEnableReg & (1 << winNumIndex)) |
| continue; |
| |
| /* Get window parameters */ |
| if (MV_OK != mvNetaWinRead(port, winNumIndex, &addrDecWin)) { |
| mvOsPrintf("ethWinOverlapDetect: ERR. TargetWinGet failed\n"); |
| return MV_ERROR; |
| } |
| |
| if (MV_TRUE == mvWinOverlapTest(pAddrWin, &(addrDecWin.addrWin))) |
| return MV_TRUE; |
| } |
| return MV_FALSE; |
| } |
| |
| /******************************************************************************* |
| * mvNetaWinRead |
| * |
| * DESCRIPTION: |
| * Read Ethernet peripheral target address window. |
| * |
| * INPUT: |
| * winNum - ETH to target address decode window number. |
| * |
| * OUTPUT: |
| * pAddrDecWin - ETH target window data structure. |
| * |
| * RETURN: |
| * MV_BAD_PARAM if winNum is invalid. |
| * MV_ERROR otherwise. |
| * |
| *******************************************************************************/ |
| MV_STATUS mvNetaWinRead(MV_U32 port, MV_U32 winNum, MV_UNIT_WIN_INFO *pAddrDecWin) |
| { |
| MV_U32 baseReg, sizeReg; |
| MV_U32 alignment, size; |
| |
| /* Parameter checking */ |
| if (winNum >= ETH_MAX_DECODE_WIN) { |
| mvOsPrintf("mvNetaWinGet: ERR. Invalid winNum %d\n", winNum); |
| return MV_NOT_SUPPORTED; |
| } |
| |
| baseReg = MV_REG_READ(ETH_WIN_BASE_REG(port, winNum)); |
| sizeReg = MV_REG_READ(ETH_WIN_SIZE_REG(port, winNum)); |
| |
| alignment = 1 << ETH_WIN_SIZE_OFFS; |
| size = (sizeReg & ETH_WIN_SIZE_MASK) >> ETH_WIN_SIZE_OFFS; |
| pAddrDecWin->addrWin.size = (size + 1) * alignment; |
| |
| /* Extract base address */ |
| pAddrDecWin->addrWin.baseLow = baseReg & ETH_WIN_BASE_MASK; |
| pAddrDecWin->addrWin.baseHigh = 0; |
| |
| /* attrib and targetId */ |
| pAddrDecWin->attrib = (baseReg & ETH_WIN_ATTR_MASK) >> ETH_WIN_ATTR_OFFS; |
| pAddrDecWin->targetId = (baseReg & ETH_WIN_TARGET_MASK) >> ETH_WIN_TARGET_OFFS; |
| |
| /* Check if window is enabled */ |
| if (~(MV_REG_READ(ETH_BASE_ADDR_ENABLE_REG(port))) & (1 << winNum)) |
| pAddrDecWin->enable = MV_TRUE; |
| else |
| pAddrDecWin->enable = MV_FALSE; |
| return MV_OK; |
| } |
| |
| /******************************************************************************* |
| * mvNetaWinEnable - Enable/disable a ETH to target address window |
| * |
| * DESCRIPTION: |
| * This function enable/disable a ETH to target address window. |
| * According to parameter 'enable' the routine will enable the |
| * window, thus enabling ETH accesses (before enabling the window it is |
| * tested for overlapping). Otherwise, the window will be disabled. |
| * |
| * INPUT: |
| * winNum - ETH 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 mvNetaWinEnable(MV_U32 port, MV_U32 winNum, MV_BOOL enable) |
| { |
| /* Parameter checking */ |
| if (winNum >= ETH_MAX_DECODE_WIN) { |
| mvOsPrintf("mvNetaTargetWinEnable:ERR. Invalid winNum%d\n", winNum); |
| return MV_ERROR; |
| } |
| |
| if (enable == MV_TRUE) |
| MV_REG_BIT_RESET(ETH_BASE_ADDR_ENABLE_REG(port), (1 << winNum)); |
| else |
| /* Disable address decode target window */ |
| MV_REG_BIT_SET(ETH_BASE_ADDR_ENABLE_REG(port), (1 << winNum)); |
| |
| return MV_OK; |
| } |
| |
| /******************************************************************************* |
| * mvNetaProtWinSet - Set access protection of Ethernet to target window. |
| * |
| * DESCRIPTION: |
| * Each Ethernet port can be configured with access attributes for each |
| * of the Ethenret to target windows (address decode windows). This |
| * function sets access attributes to a given window for the given channel. |
| * |
| * INPUTS: |
| * ethPort - ETH channel number. See MV_ETH_CHANNEL enumerator. |
| * winNum - IETH to target address decode window number. |
| * access - IETH access rights. See MV_ACCESS_RIGHTS enumerator. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * MV_ERROR in case window number is invalid or access right reserved. |
| * |
| *******************************************************************************/ |
| MV_STATUS mvNetaProtWinSet(MV_U32 portNo, MV_U32 winNum, MV_ACCESS_RIGHTS access) |
| { |
| MV_U32 protReg; |
| |
| /* Parameter checking */ |
| if (portNo >= MV_ETH_MAX_PORTS) { |
| mvOsPrintf("mvNetaProtWinSet:ERR. Invalid port number %d\n", portNo); |
| return MV_ERROR; |
| } |
| |
| if (winNum >= ETH_MAX_DECODE_WIN) { |
| mvOsPrintf("mvNetaProtWinSet:ERR. Invalid winNum%d\n", winNum); |
| return MV_ERROR; |
| } |
| |
| if ((access == ACC_RESERVED) || (access >= MAX_ACC_RIGHTS)) { |
| mvOsPrintf("mvNetaProtWinSet:ERR. Inv access param %d\n", access); |
| return MV_ERROR; |
| } |
| /* Read current protection register */ |
| protReg = MV_REG_READ(ETH_ACCESS_PROTECT_REG(portNo)); |
| |
| /* Clear protection window field */ |
| protReg &= ~(ETH_PROT_WIN_MASK(winNum)); |
| |
| /* Set new protection field value */ |
| protReg |= (access << (ETH_PROT_WIN_OFFS(winNum))); |
| |
| /* Write protection register back */ |
| MV_REG_WRITE(ETH_ACCESS_PROTECT_REG(portNo), protReg); |
| |
| return MV_OK; |
| } |