2 * File: include/asm-blackfin/mach-bf537/mem_init.h
12 * Copyright 2004-2006 Analog Devices Inc.
14 * Bugs: Enter bugs at http://blackfin.uclinux.org/
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2, or (at your option)
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; see the file COPYING.
28 * If not, write to the Free Software Foundation,
29 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
32 #if (CONFIG_MEM_MT48LC16M16A2TG_75 || CONFIG_MEM_MT48LC64M4A2FB_7E || CONFIG_MEM_MT48LC16M8A2TG_75 || CONFIG_MEM_GENERIC_BOARD || CONFIG_MEM_MT48LC32M8A2_75)
33 #if (CONFIG_SCLK_HZ > 119402985)
34 #define SDRAM_tRP TRP_2
35 #define SDRAM_tRP_num 2
36 #define SDRAM_tRAS TRAS_7
37 #define SDRAM_tRAS_num 7
38 #define SDRAM_tRCD TRCD_2
39 #define SDRAM_tWR TWR_2
41 #if (CONFIG_SCLK_HZ > 104477612) && (CONFIG_SCLK_HZ <= 119402985)
42 #define SDRAM_tRP TRP_2
43 #define SDRAM_tRP_num 2
44 #define SDRAM_tRAS TRAS_6
45 #define SDRAM_tRAS_num 6
46 #define SDRAM_tRCD TRCD_2
47 #define SDRAM_tWR TWR_2
49 #if (CONFIG_SCLK_HZ > 89552239) && (CONFIG_SCLK_HZ <= 104477612)
50 #define SDRAM_tRP TRP_2
51 #define SDRAM_tRP_num 2
52 #define SDRAM_tRAS TRAS_5
53 #define SDRAM_tRAS_num 5
54 #define SDRAM_tRCD TRCD_2
55 #define SDRAM_tWR TWR_2
57 #if (CONFIG_SCLK_HZ > 74626866) && (CONFIG_SCLK_HZ <= 89552239)
58 #define SDRAM_tRP TRP_2
59 #define SDRAM_tRP_num 2
60 #define SDRAM_tRAS TRAS_4
61 #define SDRAM_tRAS_num 4
62 #define SDRAM_tRCD TRCD_2
63 #define SDRAM_tWR TWR_2
65 #if (CONFIG_SCLK_HZ > 66666667) && (CONFIG_SCLK_HZ <= 74626866)
66 #define SDRAM_tRP TRP_2
67 #define SDRAM_tRP_num 2
68 #define SDRAM_tRAS TRAS_3
69 #define SDRAM_tRAS_num 3
70 #define SDRAM_tRCD TRCD_2
71 #define SDRAM_tWR TWR_2
73 #if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667)
74 #define SDRAM_tRP TRP_1
75 #define SDRAM_tRP_num 1
76 #define SDRAM_tRAS TRAS_4
77 #define SDRAM_tRAS_num 3
78 #define SDRAM_tRCD TRCD_1
79 #define SDRAM_tWR TWR_2
81 #if (CONFIG_SCLK_HZ > 44776119) && (CONFIG_SCLK_HZ <= 59701493)
82 #define SDRAM_tRP TRP_1
83 #define SDRAM_tRP_num 1
84 #define SDRAM_tRAS TRAS_3
85 #define SDRAM_tRAS_num 3
86 #define SDRAM_tRCD TRCD_1
87 #define SDRAM_tWR TWR_2
89 #if (CONFIG_SCLK_HZ > 29850746) && (CONFIG_SCLK_HZ <= 44776119)
90 #define SDRAM_tRP TRP_1
91 #define SDRAM_tRP_num 1
92 #define SDRAM_tRAS TRAS_2
93 #define SDRAM_tRAS_num 2
94 #define SDRAM_tRCD TRCD_1
95 #define SDRAM_tWR TWR_2
97 #if (CONFIG_SCLK_HZ <= 29850746)
98 #define SDRAM_tRP TRP_1
99 #define SDRAM_tRP_num 1
100 #define SDRAM_tRAS TRAS_1
101 #define SDRAM_tRAS_num 1
102 #define SDRAM_tRCD TRCD_1
103 #define SDRAM_tWR TWR_2
107 #if (CONFIG_MEM_MT48LC16M16A2TG_75)
108 /*SDRAM INFORMATION: */
109 #define SDRAM_Tref 64 /* Refresh period in milliseconds */
110 #define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
111 #define SDRAM_CL CL_3
114 #if (CONFIG_MEM_MT48LC16M8A2TG_75)
115 /*SDRAM INFORMATION: */
116 #define SDRAM_Tref 64 /* Refresh period in milliseconds */
117 #define SDRAM_NRA 4096 /* Number of row addresses in SDRAM */
118 #define SDRAM_CL CL_3
121 #if (CONFIG_MEM_MT48LC32M8A2_75)
122 /*SDRAM INFORMATION: */
123 #define SDRAM_Tref 64 /* Refresh period in milliseconds */
124 #define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
125 #define SDRAM_CL CL_3
128 #if (CONFIG_MEM_MT48LC64M4A2FB_7E)
129 /*SDRAM INFORMATION: */
130 #define SDRAM_Tref 64 /* Refresh period in milliseconds */
131 #define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
132 #define SDRAM_CL CL_3
135 #if (CONFIG_MEM_GENERIC_BOARD)
136 /*SDRAM INFORMATION: Modify this for your board */
137 #define SDRAM_Tref 64 /* Refresh period in milliseconds */
138 #define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */
139 #define SDRAM_CL CL_3
142 /* Equation from section 17 (p17-46) of BF533 HRM */
143 #define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num)
145 /* Enable SCLK Out */
146 #define mem_SDGCTL (SCTLE | SDRAM_CL | SDRAM_tRAS | SDRAM_tRP | SDRAM_tRCD | SDRAM_tWR | PSS)
148 #if defined CONFIG_CLKIN_HALF
154 #if defined CONFIG_PLL_BYPASS
160 /***************************************Currently Not Being Used *********************************/
161 #define flash_EBIU_AMBCTL_WAT ((CONFIG_FLASH_SPEED_BWAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
162 #define flash_EBIU_AMBCTL_RAT ((CONFIG_FLASH_SPEED_BRAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
163 #define flash_EBIU_AMBCTL_HT ((CONFIG_FLASH_SPEED_BHT * 4) / (4000000000 / CONFIG_SCLK_HZ))
164 #define flash_EBIU_AMBCTL_ST ((CONFIG_FLASH_SPEED_BST * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
165 #define flash_EBIU_AMBCTL_TT ((CONFIG_FLASH_SPEED_BTT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
167 #if (flash_EBIU_AMBCTL_TT > 3)
168 #define flash_EBIU_AMBCTL0_TT B0TT_4
170 #if (flash_EBIU_AMBCTL_TT == 3)
171 #define flash_EBIU_AMBCTL0_TT B0TT_3
173 #if (flash_EBIU_AMBCTL_TT == 2)
174 #define flash_EBIU_AMBCTL0_TT B0TT_2
176 #if (flash_EBIU_AMBCTL_TT < 2)
177 #define flash_EBIU_AMBCTL0_TT B0TT_1
180 #if (flash_EBIU_AMBCTL_ST > 3)
181 #define flash_EBIU_AMBCTL0_ST B0ST_4
183 #if (flash_EBIU_AMBCTL_ST == 3)
184 #define flash_EBIU_AMBCTL0_ST B0ST_3
186 #if (flash_EBIU_AMBCTL_ST == 2)
187 #define flash_EBIU_AMBCTL0_ST B0ST_2
189 #if (flash_EBIU_AMBCTL_ST < 2)
190 #define flash_EBIU_AMBCTL0_ST B0ST_1
193 #if (flash_EBIU_AMBCTL_HT > 2)
194 #define flash_EBIU_AMBCTL0_HT B0HT_3
196 #if (flash_EBIU_AMBCTL_HT == 2)
197 #define flash_EBIU_AMBCTL0_HT B0HT_2
199 #if (flash_EBIU_AMBCTL_HT == 1)
200 #define flash_EBIU_AMBCTL0_HT B0HT_1
202 #if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT == 0)
203 #define flash_EBIU_AMBCTL0_HT B0HT_0
205 #if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT != 0)
206 #define flash_EBIU_AMBCTL0_HT B0HT_1
209 #if (flash_EBIU_AMBCTL_WAT > 14)
210 #define flash_EBIU_AMBCTL0_WAT B0WAT_15
212 #if (flash_EBIU_AMBCTL_WAT == 14)
213 #define flash_EBIU_AMBCTL0_WAT B0WAT_14
215 #if (flash_EBIU_AMBCTL_WAT == 13)
216 #define flash_EBIU_AMBCTL0_WAT B0WAT_13
218 #if (flash_EBIU_AMBCTL_WAT == 12)
219 #define flash_EBIU_AMBCTL0_WAT B0WAT_12
221 #if (flash_EBIU_AMBCTL_WAT == 11)
222 #define flash_EBIU_AMBCTL0_WAT B0WAT_11
224 #if (flash_EBIU_AMBCTL_WAT == 10)
225 #define flash_EBIU_AMBCTL0_WAT B0WAT_10
227 #if (flash_EBIU_AMBCTL_WAT == 9)
228 #define flash_EBIU_AMBCTL0_WAT B0WAT_9
230 #if (flash_EBIU_AMBCTL_WAT == 8)
231 #define flash_EBIU_AMBCTL0_WAT B0WAT_8
233 #if (flash_EBIU_AMBCTL_WAT == 7)
234 #define flash_EBIU_AMBCTL0_WAT B0WAT_7
236 #if (flash_EBIU_AMBCTL_WAT == 6)
237 #define flash_EBIU_AMBCTL0_WAT B0WAT_6
239 #if (flash_EBIU_AMBCTL_WAT == 5)
240 #define flash_EBIU_AMBCTL0_WAT B0WAT_5
242 #if (flash_EBIU_AMBCTL_WAT == 4)
243 #define flash_EBIU_AMBCTL0_WAT B0WAT_4
245 #if (flash_EBIU_AMBCTL_WAT == 3)
246 #define flash_EBIU_AMBCTL0_WAT B0WAT_3
248 #if (flash_EBIU_AMBCTL_WAT == 2)
249 #define flash_EBIU_AMBCTL0_WAT B0WAT_2
251 #if (flash_EBIU_AMBCTL_WAT == 1)
252 #define flash_EBIU_AMBCTL0_WAT B0WAT_1
255 #if (flash_EBIU_AMBCTL_RAT > 14)
256 #define flash_EBIU_AMBCTL0_RAT B0RAT_15
258 #if (flash_EBIU_AMBCTL_RAT == 14)
259 #define flash_EBIU_AMBCTL0_RAT B0RAT_14
261 #if (flash_EBIU_AMBCTL_RAT == 13)
262 #define flash_EBIU_AMBCTL0_RAT B0RAT_13
264 #if (flash_EBIU_AMBCTL_RAT == 12)
265 #define flash_EBIU_AMBCTL0_RAT B0RAT_12
267 #if (flash_EBIU_AMBCTL_RAT == 11)
268 #define flash_EBIU_AMBCTL0_RAT B0RAT_11
270 #if (flash_EBIU_AMBCTL_RAT == 10)
271 #define flash_EBIU_AMBCTL0_RAT B0RAT_10
273 #if (flash_EBIU_AMBCTL_RAT == 9)
274 #define flash_EBIU_AMBCTL0_RAT B0RAT_9
276 #if (flash_EBIU_AMBCTL_RAT == 8)
277 #define flash_EBIU_AMBCTL0_RAT B0RAT_8
279 #if (flash_EBIU_AMBCTL_RAT == 7)
280 #define flash_EBIU_AMBCTL0_RAT B0RAT_7
282 #if (flash_EBIU_AMBCTL_RAT == 6)
283 #define flash_EBIU_AMBCTL0_RAT B0RAT_6
285 #if (flash_EBIU_AMBCTL_RAT == 5)
286 #define flash_EBIU_AMBCTL0_RAT B0RAT_5
288 #if (flash_EBIU_AMBCTL_RAT == 4)
289 #define flash_EBIU_AMBCTL0_RAT B0RAT_4
291 #if (flash_EBIU_AMBCTL_RAT == 3)
292 #define flash_EBIU_AMBCTL0_RAT B0RAT_3
294 #if (flash_EBIU_AMBCTL_RAT == 2)
295 #define flash_EBIU_AMBCTL0_RAT B0RAT_2
297 #if (flash_EBIU_AMBCTL_RAT == 1)
298 #define flash_EBIU_AMBCTL0_RAT B0RAT_1
301 #define flash_EBIU_AMBCTL0 \
302 (flash_EBIU_AMBCTL0_WAT | flash_EBIU_AMBCTL0_RAT | flash_EBIU_AMBCTL0_HT | \
303 flash_EBIU_AMBCTL0_ST | flash_EBIU_AMBCTL0_TT | CONFIG_FLASH_SPEED_RDYEN)