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 #ifdef CONFIG_MVMFP_V2 25 #define MFP(_off, _pull, _drv, _slp, _edge, _sleep, _afn) ( \ 26 /* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \ 27 /* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \ 28 /* bit 12..11 - Driver Strength */ (((_drv) & 0x3) << 11) | \ 29 /* bits 10 - pad driver */ (((_slp) & 0x1) << 10) | \ 30 /* bit 09..07 - sleep mode */ (((_sleep) & 0xe) << 6) | \ 31 /* bits 06..04 - Edge Detection */ (((_edge) & 0x7) << 4) | \ 32 /* bits 03 - sleep mode */ (((_sleep) & 0x1) << 3) | \ 33 /* bits 02..00 - Alt-fun select */ ((_afn) & 0x7)) 34 #else 35 #define MFP(_off, _pull, _drv, _slp, _edge, _sleep, _afn) ( \ 36 /* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \ 37 /* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \ 38 /* bit 12 - Unused */ \ 39 /* bits 11..10 - Driver Strength */ (((_drv) & 0x3) << 10) | \ 40 /* bit 09..07 - sleep mode */ (((_sleep) & 0xe) << 6) | \ 41 /* bits 06..04 - Edge Detection */ (((_edge) & 0x7) << 4) | \ 42 /* bits 03 - sleep mode */ (((_sleep) & 0x1) << 3) | \ 43 /* bits 02..00 - Alt-fun select */ ((_afn) & 0x7)) 44 #endif 45 46 /* 47 * to facilitate the definition, the following macros are provided 48 * 49 * offset, pull,pF, drv,dF, edge,eF ,afn,aF 50 */ 51 #define MFP_OFFSET_MASK MFP(0xffff, 0, 0, 0, 0, 0, 0) 52 #define MFP_REG(x) MFP(x, 0, 0, 0, 0, 0, 0) 53 #define MFP_REG_GET_OFFSET(x) ((x & MFP_OFFSET_MASK) >> 16) 54 55 #define MFP_AF0 MFP(0x0000, 0, 0, 0, 0, 0, 0) 56 #define MFP_AF1 MFP(0x0000, 0, 0, 0, 0, 0, 1) 57 #define MFP_AF2 MFP(0x0000, 0, 0, 0, 0, 0, 2) 58 #define MFP_AF3 MFP(0x0000, 0, 0, 0, 0, 0, 3) 59 #define MFP_AF4 MFP(0x0000, 0, 0, 0, 0, 0, 4) 60 #define MFP_AF5 MFP(0x0000, 0, 0, 0, 0, 0, 5) 61 #define MFP_AF6 MFP(0x0000, 0, 0, 0, 0, 0, 6) 62 #define MFP_AF7 MFP(0x0000, 0, 0, 0, 0, 0, 7) 63 #define MFP_AF_MASK MFP(0x0000, 0, 0, 0, 0, 0, 7) 64 65 #define MFP_SLEEP_CTRL2 MFP(0x0000, 0, 0, 0, 0, 1, 0) 66 #define MFP_SLEEP_DIR MFP(0x0000, 0, 0, 0, 0, 2, 0) 67 #define MFP_SLEEP_DATA MFP(0x0000, 0, 0, 0, 0, 4, 0) 68 #define MFP_SLEEP_CTRL MFP(0x0000, 0, 0, 0, 0, 8, 0) 69 #define MFP_SLEEP_MASK MFP(0x0000, 0, 0, 0, 0, 0xf, 0) 70 71 #define MFP_LPM_EDGE_NONE MFP(0x0000, 0, 0, 0, 4, 0, 0) 72 #define MFP_LPM_EDGE_RISE MFP(0x0000, 0, 0, 0, 1, 0, 0) 73 #define MFP_LPM_EDGE_FALL MFP(0x0000, 0, 0, 0, 2, 0, 0) 74 #define MFP_LPM_EDGE_BOTH MFP(0x0000, 0, 0, 0, 3, 0, 0) 75 #define MFP_LPM_EDGE_MASK MFP(0x0000, 0, 0, 0, 7, 0, 0) 76 77 #define MFP_SLP_DI MFP(0x0000, 0, 0, 1, 0, 0, 0) 78 79 #define MFP_DRIVE_VERY_SLOW MFP(0x0000, 0, 0, 0, 0, 0, 0) 80 #define MFP_DRIVE_SLOW MFP(0x0000, 0, 1, 0, 0, 0, 0) 81 #define MFP_DRIVE_MEDIUM MFP(0x0000, 0, 2, 0, 0, 0, 0) 82 #define MFP_DRIVE_FAST MFP(0x0000, 0, 3, 0, 0, 0, 0) 83 #define MFP_DRIVE_MASK MFP(0x0000, 0, 3, 0, 0, 0, 0) 84 85 #define MFP_PULL_NONE MFP(0x0000, 0, 0, 0, 0, 0, 0) 86 #define MFP_PULL_LOW MFP(0x0000, 5, 0, 0, 0, 0, 0) 87 #define MFP_PULL_HIGH MFP(0x0000, 6, 0, 0, 0, 0, 0) 88 #define MFP_PULL_BOTH MFP(0x0000, 7, 0, 0, 0, 0, 0) 89 #define MFP_PULL_FLOAT MFP(0x0000, 4, 0, 0, 0, 0, 0) 90 #define MFP_PULL_MASK MFP(0x0000, 7, 0, 0, 0, 0, 0) 91 92 #define MFP_VALUE_MASK (MFP_PULL_MASK | MFP_DRIVE_MASK | MFP_SLP_DI \ 93 | MFP_LPM_EDGE_MASK | MFP_SLEEP_MASK \ 94 | MFP_AF_MASK) 95 #define MFP_EOC 0xffffffff /* indicates end-of-conf */ 96 97 /* Functions */ 98 void mfp_config(u32 *mfp_cfgs); 99 100 #endif /* __MVMFP_H */ 101