| Prafulla Wadaskar | c704e7a | 2010-12-07 15:23:39 +0530 | [diff] [blame] | 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 */ |