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gerrit.cesnet.cz / github / trini / u-boot / b9a1ef219e12c08b2af695dd5355d6352b8ffc08 / . / board / samsung / origen / mem_setup.S
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Chander Kashyapb9a1ef22011-08-18 22:37:19 +0000[diff] [blame^]1/*
2 * Memory setup for ORIGEN board based on S5PV310
3 *
4 * Copyright (C) 2011 Samsung Electronics
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24
25#include <config.h>
26#include "origen_setup.h"
27#define SET_MIU
28
29 .globl mem_ctrl_asm_init
30mem_ctrl_asm_init:
31 /*
32 * Async bridge configuration at CPU_core:
33 * 1: half_sync
34 * 0: full_sync
35 */
36 ldr r0, =ASYNC_CONFIG
37 mov r1, #1
38 str r1, [r0]
39
40#ifdef SET_MIU
41 ldr r0, =S5PC210_MIU_BASE
42 /* Interleave: 2Bit, Interleave_bit1: 0x21, Interleave_bit2: 0x7 */
43 ldr r1, =0x20001507
44 str r1, [r0, #APB_SFR_INTERLEAVE_CONF_OFFSET]
45
46 /* Update MIU Configuration */
47 ldr r1, =0x00000001
48 str r1, [r0, #APB_SFR_ARBRITATION_CONF_OFFSET]
49#endif
50 /* DREX0 */
51 ldr r0, =S5PC210_DMC0_BASE
52
53 /*
54 * DLL Parameter Setting:
55 * Termination: Enable R/W
56 * Phase Delay for DQS Cleaning: 180' Shift
57 */
58 ldr r1, =0xe0000086
59 str r1, [r0, #DMC_PHYCONTROL1]
60
61 /*
62 * ZQ Calibration
63 * Termination: Disable
64 * Auto Calibration Start: Enable
65 */
66 ldr r1, =0xE3855703
67 str r1, [r0, #DMC_PHYZQCONTROL]
68
69 /* Wait ?us*/
70 mov r2, #0x100000
711: subs r2, r2, #1
72 bne 1b
73
74 /*
75 * Update DLL Information:
76 * Force DLL Resyncronization
77 */
78 ldr r1, =0xe000008e
79 str r1, [r0, #DMC_PHYCONTROL1]
80
81 /* Reset Force DLL Resyncronization */
82 ldr r1, =0xe0000086
83 str r1, [r0, #DMC_PHYCONTROL1]
84
85 /* Enable Differential DQS, DLL Off*/
86 ldr r1, =0x71101008
87 str r1, [r0, #DMC_PHYCONTROL0]
88
89 /* Activate PHY DLL: DLL On */
90 ldr r1, =0x7110100A
91 str r1, [r0, #DMC_PHYCONTROL0]
92
93 /* Set DLL Parameters */
94 ldr r1, =0xe0000086
95 str r1, [r0, #DMC_PHYCONTROL1]
96
97 /* DLL Start */
98 ldr r1, =0x7110100B
99 str r1, [r0, #DMC_PHYCONTROL0]
100
101 ldr r1, =0x00000000
102 str r1, [r0, #DMC_PHYCONTROL2]
103
104 /* Set Clock Ratio of Bus clock to Memory Clock */
105 ldr r1, =0x0FFF301a
106 str r1, [r0, #DMC_CONCONTROL]
107
108 /*
109 * Memor Burst length: 8
110 * Number of chips: 2
111 * Memory Bus width: 32 bit
112 * Memory Type: DDR3
113 * Additional Latancy for PLL: 1 Cycle
114 */
115 ldr r1, =0x00312640
116 str r1, [r0, #DMC_MEMCONTROL]
117
118 /*
119 * Memory Configuration Chip 0
120 * Address Mapping: Interleaved
121 * Number of Column address Bits: 10 bits
122 * Number of Rows Address Bits: 14
123 * Number of Banks: 8
124 */
125 ldr r1, =0x20e01323
126 str r1, [r0, #DMC_MEMCONFIG0]
127
128 /*
129 * Memory Configuration Chip 1
130 * Address Mapping: Interleaved
131 * Number of Column address Bits: 10 bits
132 * Number of Rows Address Bits: 14
133 * Number of Banks: 8
134 */
135 ldr r1, =0x40e01323
136 str r1, [r0, #DMC_MEMCONFIG1]
137
138 /* Config Precharge Policy */
139 ldr r1, =0xff000000
140 str r1, [r0, #DMC_PRECHCONFIG]
141
142 /*
143 * TimingAref, TimingRow, TimingData, TimingPower Setting:
144 * Values as per Memory AC Parameters
145 */
146 ldr r1, =0x000000BB
147 str r1, [r0, #DMC_TIMINGAREF]
148 ldr r1, =0x4046654f
149 str r1, [r0, #DMC_TIMINGROW]
150 ldr r1, =0x46400506
151 str r1, [r0, #DMC_TIMINGDATA]
152 ldr r1, =0x52000A3C
153 str r1, [r0, #DMC_TIMINGPOWER]
154
155 /* Chip0: NOP Command: Assert and Hold CKE to high level */
156 ldr r1, =0x07000000
157 str r1, [r0, #DMC_DIRECTCMD]
158
159 /* Wait ?us*/
160 mov r2, #0x100000
1612: subs r2, r2, #1
162 bne 2b
163
164 /* Chip0: EMRS2, EMRS3, EMRS, MRS Commands Using Direct Command */
165 ldr r1, =0x00020000
166 str r1, [r0, #DMC_DIRECTCMD]
167 ldr r1, =0x00030000
168 str r1, [r0, #DMC_DIRECTCMD]
169 ldr r1, =0x00010002
170 str r1, [r0, #DMC_DIRECTCMD]
171 ldr r1, =0x00000328
172 str r1, [r0, #DMC_DIRECTCMD]
173
174 /* Wait ?us*/
175 mov r2, #0x100000
1763: subs r2, r2, #1
177 bne 3b
178
179 /* Chip0: ZQINIT */
180 ldr r1, =0x0a000000
181 str r1, [r0, #DMC_DIRECTCMD]
182
183 /* Wait ?us*/
184 mov r2, #0x100000
1854: subs r2, r2, #1
186 bne 4b
187
188 /* Chip1: NOP Command: Assert and Hold CKE to high level */
189 ldr r1, =0x07100000
190 str r1, [r0, #DMC_DIRECTCMD]
191
192 /* Wait ?us*/
193 mov r2, #0x100000
1945: subs r2, r2, #1
195 bne 5b
196
197 /* Chip1: EMRS2, EMRS3, EMRS, MRS Commands Using Direct Command */
198 ldr r1, =0x00120000
199 str r1, [r0, #DMC_DIRECTCMD]
200 ldr r1, =0x00130000
201 str r1, [r0, #DMC_DIRECTCMD]
202 ldr r1, =0x00110002
203 str r1, [r0, #DMC_DIRECTCMD]
204 ldr r1, =0x00100328
205 str r1, [r0, #DMC_DIRECTCMD]
206
207 /* Wait ?us*/
208 mov r2, #0x100000
2096: subs r2, r2, #1
210 bne 6b
211
212 /* Chip1: ZQINIT */
213 ldr r1, =0x0a100000
214 str r1, [r0, #DMC_DIRECTCMD]
215
216 /* Wait ?us*/
217 mov r2, #0x100000
2187: subs r2, r2, #1
219 bne 7b
220
221 ldr r1, =0xe000008e
222 str r1, [r0, #DMC_PHYCONTROL1]
223 ldr r1, =0xe0000086
224 str r1, [r0, #DMC_PHYCONTROL1]
225
226 /* Wait ?us*/
227 mov r2, #0x100000
2288: subs r2, r2, #1
229 bne 8b
230
231 /* DREX1 */
232 ldr r0, =S5PC210_DMC1_BASE @0x10410000
233
234 /*
235 * DLL Parameter Setting:
236 * Termination: Enable R/W
237 * Phase Delay for DQS Cleaning: 180' Shift
238 */
239 ldr r1, =0xe0000086
240 str r1, [r0, #DMC_PHYCONTROL1]
241
242 /*
243 * ZQ Calibration:
244 * Termination: Disable
245 * Auto Calibration Start: Enable
246 */
247 ldr r1, =0xE3855703
248 str r1, [r0, #DMC_PHYZQCONTROL]
249
250 /* Wait ?us*/
251 mov r2, #0x100000
2521: subs r2, r2, #1
253 bne 1b
254
255 /*
256 * Update DLL Information:
257 * Force DLL Resyncronization
258 */
259 ldr r1, =0xe000008e
260 str r1, [r0, #DMC_PHYCONTROL1]
261
262 /* Reset Force DLL Resyncronization */
263 ldr r1, =0xe0000086
264 str r1, [r0, #DMC_PHYCONTROL1]
265
266 /* Enable Differential DQS, DLL Off*/
267 ldr r1, =0x71101008
268 str r1, [r0, #DMC_PHYCONTROL0]
269
270 /* Activate PHY DLL: DLL On */
271 ldr r1, =0x7110100A
272 str r1, [r0, #DMC_PHYCONTROL0]
273
274 /* Set DLL Parameters */
275 ldr r1, =0xe0000086
276 str r1, [r0, #DMC_PHYCONTROL1]
277
278 /* DLL Start */
279 ldr r1, =0x7110100B
280 str r1, [r0, #DMC_PHYCONTROL0]
281
282 ldr r1, =0x00000000
283 str r1, [r0, #DMC_PHYCONTROL2]
284
285 /* Set Clock Ratio of Bus clock to Memory Clock */
286 ldr r1, =0x0FFF301a
287 str r1, [r0, #DMC_CONCONTROL]
288
289 /*
290 * Memor Burst length: 8
291 * Number of chips: 2
292 * Memory Bus width: 32 bit
293 * Memory Type: DDR3
294 * Additional Latancy for PLL: 1 Cycle
295 */
296 ldr r1, =0x00312640
297 str r1, [r0, #DMC_MEMCONTROL]
298
299 /*
300 * Memory Configuration Chip 0
301 * Address Mapping: Interleaved
302 * Number of Column address Bits: 10 bits
303 * Number of Rows Address Bits: 14
304 * Number of Banks: 8
305 */
306 ldr r1, =0x20e01323
307 str r1, [r0, #DMC_MEMCONFIG0]
308
309 /*
310 * Memory Configuration Chip 1
311 * Address Mapping: Interleaved
312 * Number of Column address Bits: 10 bits
313 * Number of Rows Address Bits: 14
314 * Number of Banks: 8
315 */
316 ldr r1, =0x40e01323
317 str r1, [r0, #DMC_MEMCONFIG1]
318
319 /* Config Precharge Policy */
320 ldr r1, =0xff000000
321 str r1, [r0, #DMC_PRECHCONFIG]
322
323 /*
324 * TimingAref, TimingRow, TimingData, TimingPower Setting:
325 * Values as per Memory AC Parameters
326 */
327 ldr r1, =0x000000BB
328 str r1, [r0, #DMC_TIMINGAREF]
329 ldr r1, =0x4046654f
330 str r1, [r0, #DMC_TIMINGROW]
331 ldr r1, =0x46400506
332 str r1, [r0, #DMC_TIMINGDATA]
333 ldr r1, =0x52000A3C
334 str r1, [r0, #DMC_TIMINGPOWER]
335
336 /* Chip0: NOP Command: Assert and Hold CKE to high level */
337 ldr r1, =0x07000000
338 str r1, [r0, #DMC_DIRECTCMD]
339
340 /* Wait ?us*/
341 mov r2, #0x100000
3422: subs r2, r2, #1
343 bne 2b
344
345 /* Chip0: EMRS2, EMRS3, EMRS, MRS Commands Using Direct Command */
346 ldr r1, =0x00020000
347 str r1, [r0, #DMC_DIRECTCMD]
348 ldr r1, =0x00030000
349 str r1, [r0, #DMC_DIRECTCMD]
350 ldr r1, =0x00010002
351 str r1, [r0, #DMC_DIRECTCMD]
352 ldr r1, =0x00000328
353 str r1, [r0, #DMC_DIRECTCMD]
354
355 /* Wait ?us*/
356 mov r2, #0x100000
3573: subs r2, r2, #1
358 bne 3b
359
360 /* Chip 0: ZQINIT */
361 ldr r1, =0x0a000000
362 str r1, [r0, #DMC_DIRECTCMD]
363
364 /* Wait ?us*/
365 mov r2, #0x100000
3664: subs r2, r2, #1
367 bne 4b
368
369 /* Chip1: NOP Command: Assert and Hold CKE to high level */
370 ldr r1, =0x07100000
371 str r1, [r0, #DMC_DIRECTCMD]
372
373 /* Wait ?us*/
374 mov r2, #0x100000
3755: subs r2, r2, #1
376 bne 5b
377
378 /* Chip1: EMRS2, EMRS3, EMRS, MRS Commands Using Direct Command */
379 ldr r1, =0x00120000
380 str r1, [r0, #DMC_DIRECTCMD]
381 ldr r1, =0x00130000
382 str r1, [r0, #DMC_DIRECTCMD]
383 ldr r1, =0x00110002
384 str r1, [r0, #DMC_DIRECTCMD]
385 ldr r1, =0x00100328
386 str r1, [r0, #DMC_DIRECTCMD]
387
388 /* Wait ?us*/
389 mov r2, #0x100000
3906: subs r2, r2, #1
391 bne 6b
392
393 /* Chip1: ZQINIT */
394 ldr r1, =0x0a100000
395 str r1, [r0, #DMC_DIRECTCMD]
396
397 /* Wait ?us*/
398 mov r2, #0x100000
3997: subs r2, r2, #1
400 bne 7b
401
402 ldr r1, =0xe000008e
403 str r1, [r0, #DMC_PHYCONTROL1]
404 ldr r1, =0xe0000086
405 str r1, [r0, #DMC_PHYCONTROL1]
406
407 /* Wait ?us*/
408 mov r2, #0x100000
4098: subs r2, r2, #1
410 bne 8b
411
412 /* turn on DREX0, DREX1 */
413 ldr r0, =S5PC210_DMC0_BASE
414 ldr r1, =0x0FFF303a
415 str r1, [r0, #DMC_CONCONTROL]
416
417 ldr r0, =S5PC210_DMC1_BASE
418 ldr r1, =0x0FFF303a
419 str r1, [r0, #DMC_CONCONTROL]
420
421 mov pc, lr