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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 74d9c16a681aa24bb4125191fe39dc7c75cde56a / . / board / espt / lowlevel_init.S
blob: 7d5d72e123ff36e257aafa9c30c90701b4d1e707 [file] [log] [blame]
Nobuhiro Iwamatsu74d9c162009-06-25 16:31:26 +0900[diff] [blame^]1/*
2 * Copyright (C) 2009 Renesas Solutions Corp.
3 * Copyright (C) 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
4 *
5 * board/espt/lowlevel_init.S
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20 * MA 02111-1307 USA
21 */
22
23#include <config.h>
24#include <version.h>
25#include <asm/processor.h>
26#include <asm/macro.h>
27
28 .global lowlevel_init
29
30 .text
31 .align 2
32
33lowlevel_init:
34
35 write32 WDTCSR_A, WDTCSR_D
36
37 write32 WDTST_A, WDTST_D
38
39 write32 WDTBST_A, WDTBST_D
40
41 write32 CCR_A, CCR_CACHE_ICI_D
42
43 write32 MMUCR_A, MMU_CONTROL_TI_D
44
45 write32 MSTPCR0_A, MSTPCR0_D
46
47 write32 MSTPCR1_A, MSTPCR1_D
48
49 write32 RAMCR_A, RAMCR_D
50
51 /*
52 * Setting infomation from
53 * original ESPT-GIGA bootloader register
54 */
55 write32 MMSEL_A, MMSEL_D
56
57 /* dummy */
58 mov.l @r1, r2
59 mov.l @r1, r2
60 synco
61
62 write32 BCR_A, BCR_D
63
64 write32 CS0BCR_A, CS0BCR_D
65
66 write32 CS0WCR_A, CS0WCR_D
67
68 /*
69 * DDR-SDRAM setting
70 */
71
72 /* set DDR-SDRAM dummy read */
73 write32 MMSEL_A, MMSEL_D
74
75 mov.l MMSEL_A, r0
76 synco
77 mov.l @r0, r1
78 synco
79
80 mov.l CS0_A, r0
81 synco
82 mov.l @r0, r1
83 synco
84
85 /* set DDR-SDRAM bus/endian etc */
86 write32 MIM_U_A, MIM_U_D
87
88 write32 MIM_L_A, MIM_L_D0
89
90 write32 SDR_L_A, SDR_L_A_D0
91
92 write32 STR_L_A, STR_L_A_D0
93
94 /* DDR-SDRAM access control */
95 write32 MIM_L_A, MIM_L_D1
96
97 write32 SCR_L_A, SCR_L_A_D0
98
99 write32 SCR_L_A, SCR_L_A_D1
100
101 write32 EMRS_A, EMRS_D
102
103 write32 MRS1_A, MRS1_D
104
105 write32 MIM_U_A, MIM_U_D
106
107 write32 MIM_L_A, MIM_L_A_D2
108
109 write32 SCR_L_A, SCR_L_A_D2
110
111 write32 SCR_L_A, SCR_L_A_D2
112
113 write32 MRS2_A, MRS2_D
114
115 /* wait 200us */
116 wait_timer REPEAT_R3
117
118 /* GPIO setting */
119 write16 PSEL0_A, PSEL0_D
120
121 write16 PSEL1_A, PSEL1_D
122
123 write16 PSEL2_A, PSEL2_D
124
125 write16 PSEL3_A, PSEL3_D
126
127 write16 PSEL4_A, PSEL4_D
128
129 write8 PADR_A, PADR_D
130
131 write16 PACR_A, PACR_D
132
133 write8 PBDR_A, PBDR_D
134
135 write16 PBCR_A, PBCR_D
136
137 write8 PCDR_A, PCDR_D
138
139 write16 PCCR_A, PCCR_D
140
141 write8 PDDR_A, PDDR_D
142
143 write16 PDCR_A, PDCR_D
144
145 write16 PECR_A, PECR_D
146
147 write16 PFCR_A, PFCR_D
148
149 write16 PGCR_A, PGCR_D
150
151 write16 PHCR_A, PHCR_D
152
153 write16 PICR_A, PICR_D
154
155 write8 PJDR_A, PJDR_D
156
157 write16 PJCR_A, PJCR_D
158
159 /* wait 50us */
160 wait_timer REPEAT_R3
161
162 write8 PKDR_A, PKDR_D
163
164 write16 PKCR_A, PKCR_D
165
166 write16 PLCR_A, PLCR_D
167
168 write16 PMCR_A, PMCR_D
169
170 write16 PNCR_A, PNCR_D
171
172 write16 POCR_A, POCR_D
173
174
175 /* ICR0 ,ICR1 */
176 write32 ICR0_A, ICR0_D
177
178 write32 ICR1_A, ICR1_D
179
180 /* USB Host */
181 write32 USB_USBHSC_A, USB_USBHSC_D
182
183 write32 CCR_A, CCR_CACHE_D_2
184
185 rts
186 nop
187
188 .align 2
189
190/* GPIO Crontrol Register */
191PACR_A: .long 0xFFEF0000
192PBCR_A: .long 0xFFEF0002
193PCCR_A: .long 0xFFEF0004
194PDCR_A: .long 0xFFEF0006
195PECR_A: .long 0xFFEF0008
196PFCR_A: .long 0xFFEF000A
197PGCR_A: .long 0xFFEF000C
198PHCR_A: .long 0xFFEF000E
199PICR_A: .long 0xFFEF0010
200PJCR_A: .long 0xFFEF0012
201PKCR_A: .long 0xFFEF0014
202PLCR_A: .long 0xFFEF0016
203PMCR_A: .long 0xFFEF0018
204PNCR_A: .long 0xFFEF001A
205POCR_A: .long 0xFFEF001C
206
207/* GPIO Data Register */
208PADR_A: .long 0xFFEF0020
209PBDR_A: .long 0xFFEF0022
210PCDR_A: .long 0xFFEF0024
211PDDR_A: .long 0xFFEF0026
212PJDR_A: .long 0xFFEF0032
213PKDR_A: .long 0xFFEF0034
214
215/* GPIO Set data */
216PADR_D: .long 0x00000000
217PACR_D: .long 0x00001400
218PBDR_D: .long 0x00000000
219PBCR_D: .long 0x0000555A
220PCDR_D: .long 0x00000000
221PCCR_D: .long 0x00005555
222PDDR_D: .long 0x00000000
223PDCR_D: .long 0x00000155
224PECR_D: .long 0x00000000
225PFCR_D: .long 0x00000000
226PGCR_D: .long 0x00000000
227PHCR_D: .long 0x00000000
228PICR_D: .long 0x00000800
229PJDR_D: .long 0x00000006
230PJCR_D: .long 0x00005A57
231PKDR_D: .long 0x00000000
232PKCR_D: .long 0x0000FFF9
233PLCR_D: .long 0x0000C330
234PMCR_D: .long 0x0000FFFF
235PNCR_D: .long 0x00000242
236POCR_D: .long 0x00000000
237
238/* Pin Select */
239PSEL0_A: .long 0xFFEF0070
240PSEL1_A: .long 0xFFEF0072
241PSEL2_A: .long 0xFFEF0074
242PSEL3_A: .long 0xFFEF0076
243PSEL4_A: .long 0xFFEF0078
244PSEL0_D: .long 0x0001
245PSEL1_D: .long 0x2400
246PSEL2_D: .long 0x0000
247PSEL3_D: .long 0x2421
248PSEL4_D: .long 0x0000
249
250MMSEL_A: .long 0xFE600020
251BCR_A: .long 0xFF801000
252CS0BCR_A: .long 0xFF802000
253CS0WCR_A: .long 0xFF802008
254ICR0_A: .long 0xFFD00000
255ICR1_A: .long 0xFFD0001C
256
257MMSEL_D: .long 0xA5A50000
258BCR_D: .long 0x05000000
259CS0BCR_D: .long 0x232306F0
260CS0WCR_D: .long 0x00011104
261ICR0_D: .long 0x80C00000
262ICR1_D: .long 0x00020000
263
264/* RWBT Address */
265WDTST_A: .long 0xFFCC0000
266WDTCSR_A: .long 0xFFCC0004
267WDTBST_A: .long 0xFFCC0008
268/* RWBT Data */
269WDTST_D: .long 0x5A000FFF
270WDTCSR_D: .long 0xA5000000
271WDTBST_D: .long 0x55000000
272
273/* Cache Address */
274CCR_A: .long 0xFF00001C
275MMUCR_A: .long 0xFF000010
276RAMCR_A: .long 0xFF000074
277
278/* Cache Data */
279CCR_CACHE_ICI_D:.long 0x00000800
280CCR_CACHE_D_2: .long 0x00000103
281MMU_CONTROL_TI_D:.long 0x00000004
282RAMCR_D: .long 0x00000200
283
284/* Low power mode control Address */
285MSTPCR0_A: .long 0xFFC80030
286MSTPCR1_A: .long 0xFFC80038
287/* Low power mode control Data */
288MSTPCR0_D: .long 0x00000000
289MSTPCR1_D: .long 0x00000000
290
291REPEAT0_R3: .long 0x00002000
292REPEAT_R3: .long 0x00000200
293CS0_A: .long 0xA8000000
294
295MIM_U_A: .long 0xFE800008
296MIM_L_A: .long 0xFE80000C
297SCR_U_A: .long 0xFE800010
298SCR_L_A: .long 0xFE800014
299STR_U_A: .long 0xFE800018
300STR_L_A: .long 0xFE80001C
301SDR_U_A: .long 0xFE800030
302SDR_L_A: .long 0xFE800034
303EMRS_A: .long 0xFE902000
304MRS1_A: .long 0xFE900B08
305MRS2_A: .long 0xFE900308
306
307MIM_U_D: .long 0x00000000
308MIM_L_D0: .long 0x04100008
309MIM_L_D1: .long 0x02EE0009
310MIM_L_D2: .long 0x02EE0209
311
312SDR_L_A_D0: .long 0x00000300
313STR_L_A_D0: .long 0x00010040
314MIM_L_A_D1: .long 0x04100009
315SCR_L_A_D0: .long 0x00000003
316SCR_L_A_D1: .long 0x00000002
317MIM_L_A_D2: .long 0x04100209
318SCR_L_A_D2: .long 0x00000004
319
320SCR_L_NORMAL: .long 0x00000000
321SCR_L_NOP: .long 0x00000001
322SCR_L_PALL: .long 0x00000002
323SCR_L_CKE_EN: .long 0x00000003
324SCR_L_CBR: .long 0x00000004
325
326STR_L_D: .long 0x000F3980
327SDR_L_D: .long 0x00000400
328EMRS_D: .long 0x00000000
329MRS1_D: .long 0x00000000
330MRS2_D: .long 0x00000000
331
332/* USB */
333USB_USBHSC_A: .long 0xFFEC80F0
334USB_USBHSC_D: .long 0x00000000