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/*
* (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 */
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