1 /* 2 * (C) Copyright 2010 3 * Marvell Semiconductor <www.marvell.com> 4 * Written-by: Prafulla Wadaskar <prafulla@marvell.com> 5 * 6 * See file CREDITS for list of people who contributed to this 7 * project. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation; either version 2 of 12 * the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 22 * MA 02110-1301 USA 23 */ 24 25 #ifndef __MVMFP_H 26 #define __MVMFP_H 27 28 /* 29 * Header file for MultiFunctionPin (MFP) Configururation framework 30 * 31 * Processors Supported: 32 * 1. Marvell ARMADA100 Processors 33 * 34 * processor to be supported should be added here 35 */ 36 37 /* 38 * MFP configuration is represented by a 32-bit unsigned integer 39 */ 40 #define MFP(_off, _pull, _pF, _drv, _dF, _edge, _eF, _afn, _aF) ( \ 41 /* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \ 42 /* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \ 43 /* bit 12 - Unused */ \ 44 /* bits 11..10 - Driver Strength */ (((_drv) & 0x3) << 10) | \ 45 /* bit 09 - Pull State flag */ (((_pF) & 0x1) << 9) | \ 46 /* bit 08 - Drv-strength flag */ (((_dF) & 0x1) << 8) | \ 47 /* bit 07 - Edge-det flag */ (((_eF) & 0x1) << 7) | \ 48 /* bits 06..04 - Edge Detection */ (((_edge) & 0x7) << 4) | \ 49 /* bits 03..00 - Alt-fun flag */ (((_aF) & 0x1) << 3) | \ 50 /* bits Alternate-fun select */ ((_afn) & 0x7)) 51 52 /* 53 * to facilitate the definition, the following macros are provided 54 * 55 * offset, pull,pF, drv,dF, edge,eF ,afn,aF 56 */ 57 #define MFP_OFFSET_MASK MFP(0xffff, 0,0, 0,0, 0,0, 0,0) 58 #define MFP_REG(x) MFP(x, 0,0, 0,0, 0,0, 0,0) 59 #define MFP_REG_GET_OFFSET(x) ((x & MFP_OFFSET_MASK) >> 16) 60 61 #define MFP_AF_FLAG MFP(0x0000, 0,0, 0,0, 0,0, 0,1) 62 #define MFP_DRIVE_FLAG MFP(0x0000, 0,0, 0,1, 0,0, 0,0) 63 #define MFP_EDGE_FLAG MFP(0x0000, 0,0, 0,0, 0,1, 0,0) 64 #define MFP_PULL_FLAG MFP(0x0000, 0,1, 0,0, 0,0, 0,0) 65 66 #define MFP_AF0 MFP(0x0000, 0,0, 0,0, 0,0, 0,1) 67 #define MFP_AF1 MFP(0x0000, 0,0, 0,0, 0,0, 1,1) 68 #define MFP_AF2 MFP(0x0000, 0,0, 0,0, 0,0, 2,1) 69 #define MFP_AF3 MFP(0x0000, 0,0, 0,0, 0,0, 3,1) 70 #define MFP_AF4 MFP(0x0000, 0,0, 0,0, 0,0, 4,1) 71 #define MFP_AF5 MFP(0x0000, 0,0, 0,0, 0,0, 5,1) 72 #define MFP_AF6 MFP(0x0000, 0,0, 0,0, 0,0, 6,1) 73 #define MFP_AF7 MFP(0x0000, 0,0, 0,0, 0,0, 7,1) 74 #define MFP_AF_MASK MFP(0x0000, 0,0, 0,0, 0,0, 7,0) 75 76 #define MFP_LPM_EDGE_NONE MFP(0x0000, 0,0, 0,0, 0,1, 0,0) 77 #define MFP_LPM_EDGE_RISE MFP(0x0000, 0,0, 0,0, 1,1, 0,0) 78 #define MFP_LPM_EDGE_FALL MFP(0x0000, 0,0, 0,0, 2,1, 0,0) 79 #define MFP_LPM_EDGE_BOTH MFP(0x0000, 0,0, 0,0, 3,1, 0,0) 80 #define MFP_LPM_EDGE_MASK MFP(0x0000, 0,0, 0,0, 3,0, 0,0) 81 82 #define MFP_DRIVE_VERY_SLOW MFP(0x0000, 0,0, 0,1, 0,0, 0,0) 83 #define MFP_DRIVE_SLOW MFP(0x0000, 0,0, 1,1, 0,0, 0,0) 84 #define MFP_DRIVE_MEDIUM MFP(0x0000, 0,0, 2,1, 0,0, 0,0) 85 #define MFP_DRIVE_FAST MFP(0x0000, 0,0, 3,1, 0,0, 0,0) 86 #define MFP_DRIVE_MASK MFP(0x0000, 0,0, 3,0, 0,0, 0,0) 87 88 #define MFP_PULL_NONE MFP(0x0000, 0,1, 0,0, 0,0, 0,0) 89 #define MFP_PULL_LOW MFP(0x0000, 1,1, 0,0, 0,0, 0,0) 90 #define MFP_PULL_HIGH MFP(0x0000, 2,1, 0,0, 0,0, 0,0) 91 #define MFP_PULL_BOTH MFP(0x0000, 3,1, 0,0, 0,0, 0,0) 92 #define MFP_PULL_FLOAT MFP(0x0000, 4,1, 0,0, 0,0, 0,0) 93 #define MFP_PULL_MASK MFP(0x0000, 7,0, 0,0, 0,0, 0,0) 94 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