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