blob: 237579935e29cdf3d30dc5a578c798cbbf7bc2a7 (
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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
|
/*
* arch/blackfin/include/asm/mem_init.h - reprogram clocks / memory
*
* Copyright 2004-2008 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#if defined(EBIU_SDGCTL)
#if defined(CONFIG_MEM_MT48LC16M16A2TG_75) || \
defined(CONFIG_MEM_MT48LC64M4A2FB_7E) || \
defined(CONFIG_MEM_MT48LC16M8A2TG_75) || \
defined(CONFIG_MEM_MT48LC32M8A2_75) || \
defined(CONFIG_MEM_MT48LC8M32B2B5_7) || \
defined(CONFIG_MEM_MT48LC32M16A2TG_75) || \
defined(CONFIG_MEM_MT48LC32M8A2_75)
#if (CONFIG_SCLK_HZ > 119402985)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_7
#define SDRAM_tRAS_num 7
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 104477612) && (CONFIG_SCLK_HZ <= 119402985)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_6
#define SDRAM_tRAS_num 6
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 89552239) && (CONFIG_SCLK_HZ <= 104477612)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_5
#define SDRAM_tRAS_num 5
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 74626866) && (CONFIG_SCLK_HZ <= 89552239)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_4
#define SDRAM_tRAS_num 4
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 66666667) && (CONFIG_SCLK_HZ <= 74626866)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_3
#define SDRAM_tRAS_num 3
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667)
#define SDRAM_tRP TRP_1
#define SDRAM_tRP_num 1
#define SDRAM_tRAS TRAS_4
#define SDRAM_tRAS_num 4
#define SDRAM_tRCD TRCD_1
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 44776119) && (CONFIG_SCLK_HZ <= 59701493)
#define SDRAM_tRP TRP_1
#define SDRAM_tRP_num 1
#define SDRAM_tRAS TRAS_3
#define SDRAM_tRAS_num 3
#define SDRAM_tRCD TRCD_1
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 29850746) && (CONFIG_SCLK_HZ <= 44776119)
#define SDRAM_tRP TRP_1
#define SDRAM_tRP_num 1
#define SDRAM_tRAS TRAS_2
#define SDRAM_tRAS_num 2
#define SDRAM_tRCD TRCD_1
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ <= 29850746)
#define SDRAM_tRP TRP_1
#define SDRAM_tRP_num 1
#define SDRAM_tRAS TRAS_1
#define SDRAM_tRAS_num 1
#define SDRAM_tRCD TRCD_1
#define SDRAM_tWR TWR_2
#endif
#endif
/*
* The BF526-EZ-Board changed SDRAM chips between revisions,
* so we use below timings to accommodate both.
*/
#if defined(CONFIG_MEM_MT48H32M16LFCJ_75)
#if (CONFIG_SCLK_HZ > 119402985)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_8
#define SDRAM_tRAS_num 8
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 104477612) && (CONFIG_SCLK_HZ <= 119402985)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_7
#define SDRAM_tRAS_num 7
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 89552239) && (CONFIG_SCLK_HZ <= 104477612)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_6
#define SDRAM_tRAS_num 6
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 74626866) && (CONFIG_SCLK_HZ <= 89552239)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_5
#define SDRAM_tRAS_num 5
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 66666667) && (CONFIG_SCLK_HZ <= 74626866)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_4
#define SDRAM_tRAS_num 4
#define SDRAM_tRCD TRCD_2
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_4
#define SDRAM_tRAS_num 4
#define SDRAM_tRCD TRCD_1
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 44776119) && (CONFIG_SCLK_HZ <= 59701493)
#define SDRAM_tRP TRP_2
#define SDRAM_tRP_num 2
#define SDRAM_tRAS TRAS_3
#define SDRAM_tRAS_num 3
#define SDRAM_tRCD TRCD_1
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ > 29850746) && (CONFIG_SCLK_HZ <= 44776119)
#define SDRAM_tRP TRP_1
#define SDRAM_tRP_num 1
#define SDRAM_tRAS TRAS_3
#define SDRAM_tRAS_num 3
#define SDRAM_tRCD TRCD_1
#define SDRAM_tWR TWR_2
#endif
#if (CONFIG_SCLK_HZ <= 29850746)
#define SDRAM_tRP TRP_1
#define SDRAM_tRP_num 1
#define SDRAM_tRAS TRAS_2
#define SDRAM_tRAS_num 2
#define SDRAM_tRCD TRCD_1
#define SDRAM_tWR TWR_2
#endif
#endif
#if defined(CONFIG_MEM_MT48LC16M8A2TG_75) || \
defined(CONFIG_MEM_MT48LC8M32B2B5_7)
/*SDRAM INFORMATION: */
#define SDRAM_Tref 64 /* Refresh period in milliseconds */
#define SDRAM_NRA 4096 /* Number of row addresses in SDRAM */
#define SDRAM_CL CL_3
#endif
#if defined(CONFIG_MEM_MT48LC32M8A2_75) || \
defined(CONFIG_MEM_MT48LC64M4A2FB_7E) || \
defined(CONFIG_MEM_MT48LC32M16A2TG_75) || \
defined(CONFIG_MEM_MT48LC16M16A2TG_75) || \
defined(CONFIG_MEM_MT48LC32M8A2_75)
/*SDRAM INFORMATION: */
#define SDRAM_Tref 64 /* Refresh period in milliseconds */
#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
#define SDRAM_CL CL_3
#endif
#if defined(CONFIG_MEM_MT48H32M16LFCJ_75)
/*SDRAM INFORMATION: */
#define SDRAM_Tref 64 /* Refresh period in milliseconds */
#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
#define SDRAM_CL CL_2
#endif
#ifdef CONFIG_BFIN_KERNEL_CLOCK_MEMINIT_CALC
/* Equation from section 17 (p17-46) of BF533 HRM */
#define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num)
/* Enable SCLK Out */
#define mem_SDGCTL (SCTLE | SDRAM_CL | SDRAM_tRAS | SDRAM_tRP | SDRAM_tRCD | SDRAM_tWR | PSS)
#else
#define mem_SDRRC CONFIG_MEM_SDRRC
#define mem_SDGCTL CONFIG_MEM_SDGCTL
#endif
#endif
#if defined(EBIU_DDRCTL0)
#define MIN_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000 + 1)
#define MAX_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000)
#define DDR_CLK_HZ(x) (1000*1000*1000/x)
#if defined(CONFIG_MEM_MT46V32M16_6T)
#define DDR_SIZE DEVSZ_512
#define DDR_WIDTH DEVWD_16
#define DDR_MAX_tCK 13
#define DDR_tRC DDR_TRC(MIN_DDR_SCLK(60))
#define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(42))
#define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15))
#define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(72))
#define DDR_tREFI DDR_TREFI(MAX_DDR_SCLK(7800))
#define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15))
#define DDR_tWTR DDR_TWTR(1)
#define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(12))
#define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15))
#endif
#if defined(CONFIG_MEM_MT46V32M16_5B)
#define DDR_SIZE DEVSZ_512
#define DDR_WIDTH DEVWD_16
#define DDR_MAX_tCK 13
#define DDR_tRC DDR_TRC(MIN_DDR_SCLK(55))
#define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(40))
#define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15))
#define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(70))
#define DDR_tREFI DDR_TREFI(MAX_DDR_SCLK(7800))
#define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15))
#define DDR_tWTR DDR_TWTR(2)
#define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(10))
#define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15))
#endif
#if (CONFIG_SCLK_HZ < DDR_CLK_HZ(DDR_MAX_tCK))
# error "CONFIG_SCLK_HZ is too small (<DDR_CLK_HZ(DDR_MAX_tCK) Hz)."
#elif(CONFIG_SCLK_HZ <= 133333333)
# define DDR_CL CL_2
#else
# error "CONFIG_SCLK_HZ is too large (>133333333 Hz)."
#endif
#ifdef CONFIG_BFIN_KERNEL_CLOCK_MEMINIT_CALC
#define mem_DDRCTL0 (DDR_tRP | DDR_tRAS | DDR_tRC | DDR_tRFC | DDR_tREFI)
#define mem_DDRCTL1 (DDR_DATWIDTH | EXTBANK_1 | DDR_SIZE | DDR_WIDTH | DDR_tWTR \
| DDR_tMRD | DDR_tWR | DDR_tRCD)
#define mem_DDRCTL2 DDR_CL
#else
#define mem_DDRCTL0 CONFIG_MEM_DDRCTL0
#define mem_DDRCTL1 CONFIG_MEM_DDRCTL1
#define mem_DDRCTL2 CONFIG_MEM_DDRCTL2
#endif
#endif
#if defined CONFIG_CLKIN_HALF
#define CLKIN_HALF 1
#else
#define CLKIN_HALF 0
#endif
#if defined CONFIG_PLL_BYPASS
#define PLL_BYPASS 1
#else
#define PLL_BYPASS 0
#endif
|
