blob: 6f7d2125d6f8ded3eb70890deb1665a2e28f2805 (
plain)
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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2010 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
* yaffscfg2k.c The configuration for the "direct" use of yaffs.
*
* This file is intended to be modified to your requirements.
* There is no need to redistribute this file.
*/
#include "yaffscfg.h"
#include "yaffs_guts.h"
#include "yaffsfs.h"
#include "yaffs_fileem2k.h"
#include "yaffs_nandemul2k.h"
#include "yaffs_norif1.h"
#include "yaffs_trace.h"
#include <errno.h>
unsigned yaffs_trace_mask =
YAFFS_TRACE_SCAN |
YAFFS_TRACE_GC |
YAFFS_TRACE_ERASE |
YAFFS_TRACE_ERROR |
YAFFS_TRACE_TRACING |
YAFFS_TRACE_ALLOCATE |
YAFFS_TRACE_BAD_BLOCKS |
YAFFS_TRACE_VERIFY |
0;
static int yaffsfs_lastError;
void yaffsfs_SetError(int err)
{
//Do whatever to set error
yaffsfs_lastError = err;
}
int yaffsfs_GetLastError(void)
{
return yaffsfs_lastError;
}
void yaffsfs_Lock(void)
{
}
void yaffsfs_Unlock(void)
{
}
u32 yaffsfs_CurrentTime(void)
{
return 0;
}
static int yaffs_kill_alloc = 0;
static size_t total_malloced = 0;
static size_t malloc_limit = 0 & 6000000;
void *yaffs_malloc(size_t size)
{
void * this;
if(yaffs_kill_alloc)
return NULL;
if(malloc_limit && malloc_limit <(total_malloced + size) )
return NULL;
this = malloc(size);
if(this)
total_malloced += size;
return this;
}
void yaffs_free(void *ptr)
{
free(ptr);
}
void yaffsfs_LocalInitialisation(void)
{
// Define locking semaphore.
}
// Configuration
#include "yaffs_ramdisk.h"
#include "yaffs_flashif.h"
#include "yaffs_flashif2.h"
#include "yaffs_nandemul2k.h"
struct yaffs_dev ram1Dev;
struct yaffs_dev flashDev;
struct yaffs_dev m18_1Dev;
int yaffs_start_up(void)
{
// Stuff to configure YAFFS
// Stuff to initialise anything special (eg lock semaphore).
yaffsfs_LocalInitialisation();
// Set up devices
// /ram1 ram, yaffs1
memset(&ram1Dev,0,sizeof(ram1Dev));
ram1Dev.param.name = "ram1";
ram1Dev.param.total_bytes_per_chunk = 512;
ram1Dev.param.chunks_per_block = 32;
ram1Dev.param.n_reserved_blocks = 2; // Set this smaller for RAM
ram1Dev.param.start_block = 0; // Can use block 0
ram1Dev.param.end_block = 127; // Last block in 2MB.
//ram1Dev.param.use_nand_ecc = 1;
ram1Dev.param.n_caches = 0; // Disable caching on this device.
ram1Dev.driver_context = (void *) 0; // Used to identify the device in fstat.
ram1Dev.param.write_chunk_tags_fn = yramdisk_wr_chunk;
ram1Dev.param.read_chunk_tags_fn = yramdisk_rd_chunk;
ram1Dev.param.erase_fn = yramdisk_erase;
ram1Dev.param.initialise_flash_fn = yramdisk_initialise;
yaffs_add_device(&ram1Dev);
// /M18-1 yaffs1 on M18 nor sim
memset(&m18_1Dev,0,sizeof(m18_1Dev));
m18_1Dev.param.name = "M18-1";
m18_1Dev.param.total_bytes_per_chunk = 1024;
m18_1Dev.param.chunks_per_block =248;
m18_1Dev.param.n_reserved_blocks = 2;
m18_1Dev.param.start_block = 0; // Can use block 0
m18_1Dev.param.end_block = 31; // Last block
m18_1Dev.param.use_nand_ecc = 0; // use YAFFS's ECC
m18_1Dev.param.n_caches = 10; // Use caches
m18_1Dev.driver_context = (void *) 1; // Used to identify the device in fstat.
m18_1Dev.param.write_chunk_fn = ynorif1_WriteChunkToNAND;
m18_1Dev.param.read_chunk_fn = ynorif1_ReadChunkFromNAND;
m18_1Dev.param.erase_fn = ynorif1_EraseBlockInNAND;
m18_1Dev.param.initialise_flash_fn = ynorif1_InitialiseNAND;
m18_1Dev.param.deinitialise_flash_fn = ynorif1_Deinitialise_flash_fn;
// m18_1Dev.param.disable_soft_del = 1;
yaffs_add_device(&m18_1Dev);
// /yaffs2 yaffs2 file emulation
// 2kpage/64chunk per block
//
memset(&flashDev,0,sizeof(flashDev));
flashDev.param.name = "yaffs2";
flashDev.param.total_bytes_per_chunk = 2048;
flashDev.param.chunks_per_block = 64;
flashDev.param.n_reserved_blocks = 5;
flashDev.param.inband_tags = 0;
flashDev.param.start_block = 0;
flashDev.param.end_block = yflash2_GetNumberOfBlocks()-1;
flashDev.param.is_yaffs2 = 1;
flashDev.param.use_nand_ecc=1;
flashDev.param.wide_tnodes_disabled=0;
flashDev.param.refresh_period = 1000;
flashDev.param.n_caches = 10; // Use caches
flashDev.driver_context = (void *) 2; // Used to identify the device in fstat.
flashDev.param.write_chunk_tags_fn = yflash2_WriteChunkWithTagsToNAND;
flashDev.param.read_chunk_tags_fn = yflash2_ReadChunkWithTagsFromNAND;
flashDev.param.erase_fn = yflash2_EraseBlockInNAND;
flashDev.param.initialise_flash_fn = yflash2_InitialiseNAND;
flashDev.param.bad_block_fn = yflash2_MarkNANDBlockBad;
flashDev.param.query_block_fn = yflash2_QueryNANDBlock;
flashDev.param.enable_xattr = 1;
yaffs_add_device(&flashDev);
// todo yaffs_initialise(yaffsfs_config);
return 0;
}
|
