1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/*
* NAND Flash Controller Device Driver
* Copyright (c) 2009, Intel Corporation and its suppliers.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
/* header for LLD_CDMA.c module */
#ifndef _LLD_CDMA_
#define _LLD_CDMA_
#include "flash.h"
#define DEBUG_SYNC 1
/*/////////// CDMA specific MACRO definition */
#define MAX_DESCS (255)
#define MAX_CHANS (4)
#define MAX_SYNC_POINTS (16)
#define MAX_DESC_PER_CHAN (MAX_DESCS * 3 + MAX_SYNC_POINTS + 2)
#define CHANNEL_SYNC_MASK (0x000F)
#define CHANNEL_DMA_MASK (0x00F0)
#define CHANNEL_ID_MASK (0x0300)
#define CHANNEL_CONT_MASK (0x4000)
#define CHANNEL_INTR_MASK (0x8000)
#define CHANNEL_SYNC_OFFSET (0)
#define CHANNEL_DMA_OFFSET (4)
#define CHANNEL_ID_OFFSET (8)
#define CHANNEL_CONT_OFFSET (14)
#define CHANNEL_INTR_OFFSET (15)
u16 CDMA_Data_CMD(u8 cmd, u8 *data, u32 block, u16 page, u16 num, u16 flags);
u16 CDMA_MemCopy_CMD(u8 *dest, u8 *src, u32 byte_cnt, u16 flags);
u16 CDMA_Execute_CMDs(void);
void print_pending_cmds(void);
void print_cdma_descriptors(void);
extern u8 g_SBDCmdIndex;
extern struct mrst_nand_info info;
/*/////////// prototypes: APIs for LLD_CDMA */
int is_cdma_interrupt(void);
u16 CDMA_Event_Status(void);
/* CMD-DMA Descriptor Struct. These are defined by the CMD_DMA HW */
struct cdma_descriptor {
u32 NxtPointerHi;
u32 NxtPointerLo;
u32 FlashPointerHi;
u32 FlashPointerLo;
u32 CommandType;
u32 MemAddrHi;
u32 MemAddrLo;
u32 CommandFlags;
u32 Channel;
u32 Status;
u32 MemCopyPointerHi;
u32 MemCopyPointerLo;
u32 Reserved12;
u32 Reserved13;
u32 Reserved14;
u32 pcmd; /* pending cmd num related to this descriptor */
};
/* This struct holds one MemCopy descriptor as defined by the HW */
struct memcpy_descriptor {
u32 NxtPointerHi;
u32 NxtPointerLo;
u32 SrcAddrHi;
u32 SrcAddrLo;
u32 DestAddrHi;
u32 DestAddrLo;
u32 XferSize;
u32 MemCopyFlags;
u32 MemCopyStatus;
u32 reserved9;
u32 reserved10;
u32 reserved11;
u32 reserved12;
u32 reserved13;
u32 reserved14;
u32 reserved15;
};
/* Pending CMD table entries (includes MemCopy parameters */
struct pending_cmd {
u8 CMD;
u8 *DataAddr;
u32 Block;
u16 Page;
u16 PageCount;
u8 *DataDestAddr;
u8 *DataSrcAddr;
u32 MemCopyByteCnt;
u16 Flags;
u16 Status;
};
#if DEBUG_SYNC
extern u32 debug_sync_cnt;
#endif
/* Definitions for CMD DMA descriptor chain fields */
#define CMD_DMA_DESC_COMP 0x8000
#define CMD_DMA_DESC_FAIL 0x4000
#endif /*_LLD_CDMA_*/
|
