1 /* 2 * (C) Copyright 2010 3 * Marvell Semiconductor <www.marvell.com> 4 * Written-by: Prafulla Wadaskar <prafulla@marvell.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #ifndef __MVMFP_H 10 #define __MVMFP_H 11 12 /* 13 * Header file for MultiFunctionPin (MFP) Configururation framework 14 * 15 * Processors Supported: 16 * 1. Marvell ARMADA100 Processors 17 * 18 * processor to be supported should be added here 19 */ 20 21 /* 22 * MFP configuration is represented by a 32-bit unsigned integer 23 */ 24 #define MFP(_off, _pull, _pF, _drv, _dF, _edge, _eF, _afn, _aF) ( \ 25 /* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \ 26 /* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \ 27 /* bit 12 - Unused */ \ 28 /* bits 11..10 - Driver Strength */ (((_drv) & 0x3) << 10) | \ 29 /* bit 09 - Pull State flag */ (((_pF) & 0x1) << 9) | \ 30 /* bit 08 - Drv-strength flag */ (((_dF) & 0x1) << 8) | \ 31 /* bit 07 - Edge-det flag */ (((_eF) & 0x1) << 7) | \ 32 /* bits 06..04 - Edge Detection */ (((_edge) & 0x7) << 4) | \ 33 /* bits 03..00 - Alt-fun flag */ (((_aF) & 0x1) << 3) | \ 34 /* bits Alternate-fun select */ ((_afn) & 0x7)) 35 36 /* 37 * to facilitate the definition, the following macros are provided 38 * 39 * offset, pull,pF, drv,dF, edge,eF ,afn,aF 40 */ 41 #define MFP_OFFSET_MASK MFP(0xffff, 0,0, 0,0, 0,0, 0,0) 42 #define MFP_REG(x) MFP(x, 0,0, 0,0, 0,0, 0,0) 43 #define MFP_REG_GET_OFFSET(x) ((x & MFP_OFFSET_MASK) >> 16) 44 45 #define MFP_AF_FLAG MFP(0x0000, 0,0, 0,0, 0,0, 0,1) 46 #define MFP_DRIVE_FLAG MFP(0x0000, 0,0, 0,1, 0,0, 0,0) 47 #define MFP_EDGE_FLAG MFP(0x0000, 0,0, 0,0, 0,1, 0,0) 48 #define MFP_PULL_FLAG MFP(0x0000, 0,1, 0,0, 0,0, 0,0) 49 50 #define MFP_AF0 MFP(0x0000, 0,0, 0,0, 0,0, 0,1) 51 #define MFP_AF1 MFP(0x0000, 0,0, 0,0, 0,0, 1,1) 52 #define MFP_AF2 MFP(0x0000, 0,0, 0,0, 0,0, 2,1) 53 #define MFP_AF3 MFP(0x0000, 0,0, 0,0, 0,0, 3,1) 54 #define MFP_AF4 MFP(0x0000, 0,0, 0,0, 0,0, 4,1) 55 #define MFP_AF5 MFP(0x0000, 0,0, 0,0, 0,0, 5,1) 56 #define MFP_AF6 MFP(0x0000, 0,0, 0,0, 0,0, 6,1) 57 #define MFP_AF7 MFP(0x0000, 0,0, 0,0, 0,0, 7,1) 58 #define MFP_AF_MASK MFP(0x0000, 0,0, 0,0, 0,0, 7,0) 59 60 #define MFP_LPM_EDGE_NONE MFP(0x0000, 0,0, 0,0, 0,1, 0,0) 61 #define MFP_LPM_EDGE_RISE MFP(0x0000, 0,0, 0,0, 1,1, 0,0) 62 #define MFP_LPM_EDGE_FALL MFP(0x0000, 0,0, 0,0, 2,1, 0,0) 63 #define MFP_LPM_EDGE_BOTH MFP(0x0000, 0,0, 0,0, 3,1, 0,0) 64 #define MFP_LPM_EDGE_MASK MFP(0x0000, 0,0, 0,0, 3,0, 0,0) 65 66 #define MFP_DRIVE_VERY_SLOW MFP(0x0000, 0,0, 0,1, 0,0, 0,0) 67 #define MFP_DRIVE_SLOW MFP(0x0000, 0,0, 1,1, 0,0, 0,0) 68 #define MFP_DRIVE_MEDIUM MFP(0x0000, 0,0, 2,1, 0,0, 0,0) 69 #define MFP_DRIVE_FAST MFP(0x0000, 0,0, 3,1, 0,0, 0,0) 70 #define MFP_DRIVE_MASK MFP(0x0000, 0,0, 3,0, 0,0, 0,0) 71 72 #define MFP_PULL_NONE MFP(0x0000, 0,1, 0,0, 0,0, 0,0) 73 #define MFP_PULL_LOW MFP(0x0000, 1,1, 0,0, 0,0, 0,0) 74 #define MFP_PULL_HIGH MFP(0x0000, 2,1, 0,0, 0,0, 0,0) 75 #define MFP_PULL_BOTH MFP(0x0000, 3,1, 0,0, 0,0, 0,0) 76 #define MFP_PULL_FLOAT MFP(0x0000, 4,1, 0,0, 0,0, 0,0) 77 #define MFP_PULL_MASK MFP(0x0000, 7,0, 0,0, 0,0, 0,0) 78 79 #define MFP_EOC 0xffffffff /* indicates end-of-conf */ 80 81 /* Functions */ 82 void mfp_config(u32 *mfp_cfgs); 83 84 #endif /* __MVMFP_H */ 85