blob: 961d79995c51f74009933f74396794ebd10431e0
1 | /* |
2 | * (C) Copyright 2010 |
3 | * Marvell Semiconductor <www.marvell.com> |
4 | * Written-by: Prafulla Wadaskar <prafulla@marvell.com> |
5 | * |
6 | * SPDX-License-Identifier: GPL-2.0+ |
7 | */ |
8 | |
9 | #ifndef __MVMFP_H |
10 | #define __MVMFP_H |
11 | |
12 | /* |
13 | * Header file for MultiFunctionPin (MFP) Configururation framework |
14 | * |
15 | * Processors Supported: |
16 | * 1. Marvell ARMADA100 Processors |
17 | * |
18 | * processor to be supported should be added here |
19 | */ |
20 | |
21 | /* |
22 | * MFP configuration is represented by a 32-bit unsigned integer |
23 | */ |
24 | #define MFP(_off, _pull, _pF, _drv, _dF, _edge, _eF, _afn, _aF) ( \ |
25 | /* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \ |
26 | /* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \ |
27 | /* bit 12 - Unused */ \ |
28 | /* bits 11..10 - Driver Strength */ (((_drv) & 0x3) << 10) | \ |
29 | /* bit 09 - Pull State flag */ (((_pF) & 0x1) << 9) | \ |
30 | /* bit 08 - Drv-strength flag */ (((_dF) & 0x1) << 8) | \ |
31 | /* bit 07 - Edge-det flag */ (((_eF) & 0x1) << 7) | \ |
32 | /* bits 06..04 - Edge Detection */ (((_edge) & 0x7) << 4) | \ |
33 | /* bits 03..00 - Alt-fun flag */ (((_aF) & 0x1) << 3) | \ |
34 | /* bits Alternate-fun select */ ((_afn) & 0x7)) |
35 | |
36 | /* |
37 | * to facilitate the definition, the following macros are provided |
38 | * |
39 | * offset, pull,pF, drv,dF, edge,eF ,afn,aF |
40 | */ |
41 | #define MFP_OFFSET_MASK MFP(0xffff, 0,0, 0,0, 0,0, 0,0) |
42 | #define MFP_REG(x) MFP(x, 0,0, 0,0, 0,0, 0,0) |
43 | #define MFP_REG_GET_OFFSET(x) ((x & MFP_OFFSET_MASK) >> 16) |
44 | |
45 | #define MFP_AF_FLAG MFP(0x0000, 0,0, 0,0, 0,0, 0,1) |
46 | #define MFP_DRIVE_FLAG MFP(0x0000, 0,0, 0,1, 0,0, 0,0) |
47 | #define MFP_EDGE_FLAG MFP(0x0000, 0,0, 0,0, 0,1, 0,0) |
48 | #define MFP_PULL_FLAG MFP(0x0000, 0,1, 0,0, 0,0, 0,0) |
49 | |
50 | #define MFP_AF0 MFP(0x0000, 0,0, 0,0, 0,0, 0,1) |
51 | #define MFP_AF1 MFP(0x0000, 0,0, 0,0, 0,0, 1,1) |
52 | #define MFP_AF2 MFP(0x0000, 0,0, 0,0, 0,0, 2,1) |
53 | #define MFP_AF3 MFP(0x0000, 0,0, 0,0, 0,0, 3,1) |
54 | #define MFP_AF4 MFP(0x0000, 0,0, 0,0, 0,0, 4,1) |
55 | #define MFP_AF5 MFP(0x0000, 0,0, 0,0, 0,0, 5,1) |
56 | #define MFP_AF6 MFP(0x0000, 0,0, 0,0, 0,0, 6,1) |
57 | #define MFP_AF7 MFP(0x0000, 0,0, 0,0, 0,0, 7,1) |
58 | #define MFP_AF_MASK MFP(0x0000, 0,0, 0,0, 0,0, 7,0) |
59 | |
60 | #define MFP_LPM_EDGE_NONE MFP(0x0000, 0,0, 0,0, 0,1, 0,0) |
61 | #define MFP_LPM_EDGE_RISE MFP(0x0000, 0,0, 0,0, 1,1, 0,0) |
62 | #define MFP_LPM_EDGE_FALL MFP(0x0000, 0,0, 0,0, 2,1, 0,0) |
63 | #define MFP_LPM_EDGE_BOTH MFP(0x0000, 0,0, 0,0, 3,1, 0,0) |
64 | #define MFP_LPM_EDGE_MASK MFP(0x0000, 0,0, 0,0, 3,0, 0,0) |
65 | |
66 | #define MFP_DRIVE_VERY_SLOW MFP(0x0000, 0,0, 0,1, 0,0, 0,0) |
67 | #define MFP_DRIVE_SLOW MFP(0x0000, 0,0, 1,1, 0,0, 0,0) |
68 | #define MFP_DRIVE_MEDIUM MFP(0x0000, 0,0, 2,1, 0,0, 0,0) |
69 | #define MFP_DRIVE_FAST MFP(0x0000, 0,0, 3,1, 0,0, 0,0) |
70 | #define MFP_DRIVE_MASK MFP(0x0000, 0,0, 3,0, 0,0, 0,0) |
71 | |
72 | #define MFP_PULL_NONE MFP(0x0000, 0,1, 0,0, 0,0, 0,0) |
73 | #define MFP_PULL_LOW MFP(0x0000, 1,1, 0,0, 0,0, 0,0) |
74 | #define MFP_PULL_HIGH MFP(0x0000, 2,1, 0,0, 0,0, 0,0) |
75 | #define MFP_PULL_BOTH MFP(0x0000, 3,1, 0,0, 0,0, 0,0) |
76 | #define MFP_PULL_FLOAT MFP(0x0000, 4,1, 0,0, 0,0, 0,0) |
77 | #define MFP_PULL_MASK MFP(0x0000, 7,0, 0,0, 0,0, 0,0) |
78 | |
79 | #define MFP_EOC 0xffffffff /* indicates end-of-conf */ |
80 | |
81 | /* Functions */ |
82 | void mfp_config(u32 *mfp_cfgs); |
83 | |
84 | #endif /* __MVMFP_H */ |
85 |