1 /******************************************************************************** 2 Copyright (C) 2016 Marvell International Ltd. 3 4 Marvell BSD License Option 5 6 If you received this File from Marvell, you may opt to use, redistribute and/or 7 modify this File under the following licensing terms. 8 Redistribution and use in source and binary forms, with or without modification, 9 are permitted provided that the following conditions are met: 10 11 * Redistributions of source code must retain the above copyright notice, 12 this list of conditions and the following disclaimer. 13 14 * Redistributions in binary form must reproduce the above copyright 15 notice, this list of conditions and the following disclaimer in the 16 documentation and/or other materials provided with the distribution. 17 18 * Neither the name of Marvell nor the names of its contributors may be 19 used to endorse or promote products derived from this software without 20 specific prior written permission. 21 22 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 23 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 26 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 29 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 31 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 33 *******************************************************************************/ 34 35 #include "ComPhyLib.h" 36 37 STATIC 38 VOID 39 ComPhyMuxCheckConfig ( 40 IN COMPHY_MUX_DATA *MuxData, 41 IN COMPHY_MAP *ComPhyMapData, 42 IN UINTN ComPhyMaxLanes 43 ) 44 { 45 COMPHY_MUX_OPTIONS *PtrMuxOpt; 46 UINTN Lane, Opt, Valid; 47 48 for (Lane = 0; Lane < ComPhyMaxLanes; Lane++, ComPhyMapData++, MuxData++) { 49 PtrMuxOpt = MuxData->MuxValues; 50 for (Opt = 0, Valid = 0; Opt < MuxData->MaxLaneValues; Opt++, PtrMuxOpt++) { 51 if (PtrMuxOpt->Type == ComPhyMapData->Type) { 52 Valid = 1; 53 break; 54 } 55 } 56 if (Valid == 0) { 57 DEBUG((DEBUG_INFO, "Lane number %d, had invalid Type %d\n", Lane, 58 ComPhyMapData->Type)); 59 DEBUG((DEBUG_INFO, "Set Lane %d as Type %d\n", Lane, 60 PHY_TYPE_UNCONNECTED)); 61 ComPhyMapData->Type = PHY_TYPE_UNCONNECTED; 62 } else { 63 DEBUG((DEBUG_INFO, "Lane number %d, has Type %d\n", Lane, 64 ComPhyMapData->Type)); 65 } 66 } 67 } 68 69 STATIC 70 UINT32 71 ComPhyMuxGetMuxValue ( 72 IN COMPHY_MUX_DATA *MuxData, 73 IN UINT32 Type, 74 IN UINTN Lane 75 ) 76 { 77 COMPHY_MUX_OPTIONS *PtrMuxOpt; 78 UINTN Opt; 79 UINT32 Value = 0; 80 81 PtrMuxOpt = MuxData->MuxValues; 82 for (Opt = 0 ; Opt < MuxData->MaxLaneValues; Opt++, PtrMuxOpt++) 83 if (PtrMuxOpt->Type == Type) { 84 Value = PtrMuxOpt->MuxValue; 85 break; 86 } 87 88 return Value; 89 } 90 91 STATIC 92 VOID 93 ComPhyMuxRegWrite ( 94 IN COMPHY_MUX_DATA *MuxData, 95 IN COMPHY_MAP *ComPhyMapData, 96 IN UINTN ComPhyMaxLanes, 97 IN EFI_PHYSICAL_ADDRESS SelectorBase, 98 IN UINT32 BitCount 99 ) 100 { 101 UINT32 Lane, Value, Offset, Mask; 102 103 for (Lane = 0; Lane < ComPhyMaxLanes; Lane++, ComPhyMapData++, MuxData++) { 104 Offset = Lane * BitCount; 105 Mask = (((1 << BitCount) - 1) << Offset); 106 Value = (ComPhyMuxGetMuxValue (MuxData, ComPhyMapData->Type, Lane) << 107 Offset); 108 RegSet (SelectorBase, Value, Mask); 109 } 110 } 111 112 VOID 113 ComPhyMuxInit ( 114 IN CHIP_COMPHY_CONFIG *PtrChipCfg, 115 IN COMPHY_MAP *ComPhyMapData, 116 IN EFI_PHYSICAL_ADDRESS SelectorBase 117 ) 118 { 119 COMPHY_MUX_DATA *MuxData; 120 UINT32 MuxBitCount; 121 UINT32 ComPhyMaxLanes; 122 123 ComPhyMaxLanes = PtrChipCfg->LanesCount; 124 MuxData = PtrChipCfg->MuxData; 125 MuxBitCount = PtrChipCfg->MuxBitCount; 126 127 /* Check if the configuration is valid */ 128 ComPhyMuxCheckConfig (MuxData, ComPhyMapData, ComPhyMaxLanes); 129 /* Init COMPHY selectors */ 130 ComPhyMuxRegWrite (MuxData, ComPhyMapData, ComPhyMaxLanes, SelectorBase, 131 MuxBitCount); 132 } 133