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Diffstat (limited to 'include/mvmfp.h')
| -rw-r--r-- | include/mvmfp.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/include/mvmfp.h b/include/mvmfp.h new file mode 100644 index 0000000..0b36393 --- /dev/null +++ b/include/mvmfp.h @@ -0,0 +1,100 @@ +/* + * (C) Copyright 2010 + * Marvell Semiconductor <www.marvell.com> + * Written-by: Prafulla Wadaskar <prafulla@marvell.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#ifndef __MVMFP_H +#define __MVMFP_H + +/* + * Header file for MultiFunctionPin (MFP) Configururation framework + * + * Processors Supported: + * 1. Marvell ARMADA100 Processors + * + * processor to be supported should be added here + */ + +/* + * MFP configuration is represented by a 32-bit unsigned integer + */ +#define MFP(_off, _pull, _pF, _drv, _dF, _edge, _eF, _afn, _aF) ( \ + /* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \ + /* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \ + /* bit 12 - Unused */ \ + /* bits 11..10 - Driver Strength */ (((_drv) & 0x3) << 10) | \ + /* bit 09 - Pull State flag */ (((_pF) & 0x1) << 9) | \ + /* bit 08 - Drv-strength flag */ (((_dF) & 0x1) << 8) | \ + /* bit 07 - Edge-det flag */ (((_eF) & 0x1) << 7) | \ + /* bits 06..04 - Edge Detection */ (((_edge) & 0x7) << 4) | \ + /* bits 03..00 - Alt-fun flag */ (((_aF) & 0x1) << 3) | \ + /* bits Alternate-fun select */ ((_afn) & 0x7)) + +/* + * to facilitate the definition, the following macros are provided + * + * offset, pull,pF, drv,dF, edge,eF ,afn,aF + */ +#define MFP_OFFSET_MASK MFP(0xffff, 0,0, 0,0, 0,0, 0,0) +#define MFP_REG(x) MFP(x, 0,0, 0,0, 0,0, 0,0) +#define MFP_REG_GET_OFFSET(x) ((x & MFP_OFFSET_MASK) >> 16) + +#define MFP_AF_FLAG MFP(0x0000, 0,0, 0,0, 0,0, 0,1) +#define MFP_DRIVE_FLAG MFP(0x0000, 0,0, 0,1, 0,0, 0,0) +#define MFP_EDGE_FLAG MFP(0x0000, 0,0, 0,0, 0,1, 0,0) +#define MFP_PULL_FLAG MFP(0x0000, 0,1, 0,0, 0,0, 0,0) + +#define MFP_AF0 MFP(0x0000, 0,0, 0,0, 0,0, 0,1) +#define MFP_AF1 MFP(0x0000, 0,0, 0,0, 0,0, 1,1) +#define MFP_AF2 MFP(0x0000, 0,0, 0,0, 0,0, 2,1) +#define MFP_AF3 MFP(0x0000, 0,0, 0,0, 0,0, 3,1) +#define MFP_AF4 MFP(0x0000, 0,0, 0,0, 0,0, 4,1) +#define MFP_AF5 MFP(0x0000, 0,0, 0,0, 0,0, 5,1) +#define MFP_AF6 MFP(0x0000, 0,0, 0,0, 0,0, 6,1) +#define MFP_AF7 MFP(0x0000, 0,0, 0,0, 0,0, 7,1) +#define MFP_AF_MASK MFP(0x0000, 0,0, 0,0, 0,0, 7,0) + +#define MFP_LPM_EDGE_NONE MFP(0x0000, 0,0, 0,0, 0,1, 0,0) +#define MFP_LPM_EDGE_RISE MFP(0x0000, 0,0, 0,0, 1,1, 0,0) +#define MFP_LPM_EDGE_FALL MFP(0x0000, 0,0, 0,0, 2,1, 0,0) +#define MFP_LPM_EDGE_BOTH MFP(0x0000, 0,0, 0,0, 3,1, 0,0) +#define MFP_LPM_EDGE_MASK MFP(0x0000, 0,0, 0,0, 3,0, 0,0) + +#define MFP_DRIVE_VERY_SLOW MFP(0x0000, 0,0, 0,1, 0,0, 0,0) +#define MFP_DRIVE_SLOW MFP(0x0000, 0,0, 1,1, 0,0, 0,0) +#define MFP_DRIVE_MEDIUM MFP(0x0000, 0,0, 2,1, 0,0, 0,0) +#define MFP_DRIVE_FAST MFP(0x0000, 0,0, 3,1, 0,0, 0,0) +#define MFP_DRIVE_MASK MFP(0x0000, 0,0, 3,0, 0,0, 0,0) + +#define MFP_PULL_NONE MFP(0x0000, 0,1, 0,0, 0,0, 0,0) +#define MFP_PULL_LOW MFP(0x0000, 1,1, 0,0, 0,0, 0,0) +#define MFP_PULL_HIGH MFP(0x0000, 2,1, 0,0, 0,0, 0,0) +#define MFP_PULL_BOTH MFP(0x0000, 3,1, 0,0, 0,0, 0,0) +#define MFP_PULL_FLOAT MFP(0x0000, 4,1, 0,0, 0,0, 0,0) +#define MFP_PULL_MASK MFP(0x0000, 7,0, 0,0, 0,0, 0,0) + +#define MFP_EOC 0xffffffff /* indicates end-of-conf */ + +/* Functions */ +void mfp_config(u32 *mfp_cfgs); + +#endif /* __MVMFP_H */ |