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
|
/*
* Copyright (C) 2008 Renesas Solutions Corp.
* Copyright (C) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
* Copyright (C) 2007 Kenati Technologies, Inc.
*
* board/sh7763rdp/lowlevel_init.S
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <version.h>
#include <asm/processor.h>
#include <asm/macro.h>
.global lowlevel_init
.text
.align 2
lowlevel_init:
write32 WDTCSR_A, WDTCSR_D /* Watchdog Control / Status Register */
write32 WDTST_A, WDTST_D /* Watchdog Stop Time Register */
write32 WDTBST_A, WDTBST_D /*
* 0xFFCC0008
* Watchdog Base Stop Time Register
*/
write32 CCR_A, CCR_CACHE_ICI_D /* Address of Cache Control Register */
/* Instruction Cache Invalidate */
write32 MMUCR_A, MMU_CONTROL_TI_D /* MMU Control Register */
/* TI == TLB Invalidate bit */
write32 MSTPCR0_A, MSTPCR0_D /* Address of Power Control Register 0 */
write32 MSTPCR1_A, MSTPCR1_D /* Address of Power Control Register 1 */
write32 RAMCR_A, RAMCR_D
mov.l MMSELR_A, r1
mov.l MMSELR_D, r0
synco
mov.l r0, @r1
mov.l @r1, r2 /* execute two reads after setting MMSELR */
mov.l @r1, r2
synco
/* issue memory read */
mov.l DDRSD_START_A, r1 /* memory address to read*/
mov.l @r1, r0
synco
write32 MIM8_A, MIM8_D
write32 MIMC_A, MIMC_D1
write32 STRC_A, STRC_D
write32 SDR4_A, SDR4_D
write32 MIMC_A, MIMC_D2
nop
nop
nop
write32 SCR4_A, SCR4_D3
write32 SCR4_A, SCR4_D2
write32 SDMR02000_A, SDMR02000_D
write32 SDMR00B08_A, SDMR00B08_D
write32 SCR4_A, SCR4_D2
write32 SCR4_A, SCR4_D4
nop
nop
nop
nop
write32 SCR4_A, SCR4_D4
nop
nop
nop
nop
write32 SDMR00308_A, SDMR00308_D
write32 MIMC_A, MIMC_D3
mov.l SCR4_A, r1
mov.l SCR4_D1, r0
mov.l DELAY60_D, r3
delay_loop_60:
mov.l r0, @r1
dt r3
bf delay_loop_60
nop
write32 CCR_A, CCR_CACHE_D_2 /* Address of Cache Control Register */
bsc_init:
write32 BCR_A, BCR_D
write32 CS0BCR_A, CS0BCR_D
write32 CS1BCR_A, CS1BCR_D
write32 CS2BCR_A, CS2BCR_D
write32 CS4BCR_A, CS4BCR_D
write32 CS5BCR_A, CS5BCR_D
write32 CS6BCR_A, CS6BCR_D
write32 CS0WCR_A, CS0WCR_D
write32 CS1WCR_A, CS1WCR_D
write32 CS2WCR_A, CS2WCR_D
write32 CS4WCR_A, CS4WCR_D
write32 CS5WCR_A, CS5WCR_D
write32 CS6WCR_A, CS6WCR_D
write32 CS5PCR_A, CS5PCR_D
write32 CS6PCR_A, CS6PCR_D
mov.l DELAY200_D, r3
delay_loop_200:
dt r3
bf delay_loop_200
nop
write16 PSEL0_A, PSEL0_D
write16 PSEL1_A, PSEL1_D
write32 ICR0_A, ICR0_D
stc sr, r0 /* BL bit off(init=ON) */
mov.l SR_MASK_D, r1
and r1, r0
ldc r0, sr
rts
nop
.align 2
DELAY60_D: .long 60
DELAY200_D: .long 17800
CCR_A: .long 0xFF00001C
MMUCR_A: .long 0xFF000010
RAMCR_A: .long 0xFF000074
/* Low power mode control */
MSTPCR0_A: .long 0xFFC80030
MSTPCR1_A: .long 0xFFC80038
/* RWBT */
WDTST_A: .long 0xFFCC0000
WDTCSR_A: .long 0xFFCC0004
WDTBST_A: .long 0xFFCC0008
/* BSC */
MMSELR_A: .long 0xFE600020
BCR_A: .long 0xFF801000
CS0BCR_A: .long 0xFF802000
CS1BCR_A: .long 0xFF802010
CS2BCR_A: .long 0xFF802020
CS4BCR_A: .long 0xFF802040
CS5BCR_A: .long 0xFF802050
CS6BCR_A: .long 0xFF802060
CS0WCR_A: .long 0xFF802008
CS1WCR_A: .long 0xFF802018
CS2WCR_A: .long 0xFF802028
CS4WCR_A: .long 0xFF802048
CS5WCR_A: .long 0xFF802058
CS6WCR_A: .long 0xFF802068
CS5PCR_A: .long 0xFF802070
CS6PCR_A: .long 0xFF802080
DDRSD_START_A: .long 0xAC000000
/* INTC */
ICR0_A: .long 0xFFD00000
/* DDR I/F */
MIM8_A: .long 0xFE800008
MIMC_A: .long 0xFE80000C
SCR4_A: .long 0xFE800014
STRC_A: .long 0xFE80001C
SDR4_A: .long 0xFE800034
SDMR00308_A: .long 0xFE900308
SDMR00B08_A: .long 0xFE900B08
SDMR02000_A: .long 0xFE902000
/* GPIO */
PSEL0_A: .long 0xFFEF0070
PSEL1_A: .long 0xFFEF0072
CCR_CACHE_ICI_D:.long 0x00000800
CCR_CACHE_D_2: .long 0x00000103
MMU_CONTROL_TI_D:.long 0x00000004
RAMCR_D: .long 0x00000200
MSTPCR0_D: .long 0x00000000
MSTPCR1_D: .long 0x00000000
MMSELR_D: .long 0xa5a50000
BCR_D: .long 0x00000000
CS0BCR_D: .long 0x77777770
CS1BCR_D: .long 0x77777670
CS2BCR_D: .long 0x77777670
CS4BCR_D: .long 0x77777670
CS5BCR_D: .long 0x77777670
CS6BCR_D: .long 0x77777670
CS0WCR_D: .long 0x7777770F
CS1WCR_D: .long 0x22000002
CS2WCR_D: .long 0x7777770F
CS4WCR_D: .long 0x7777770F
CS5WCR_D: .long 0x7777770F
CS6WCR_D: .long 0x7777770F
CS5PCR_D: .long 0x77000000
CS6PCR_D: .long 0x77000000
ICR0_D: .long 0x00E00000
MIM8_D: .long 0x00000000
MIMC_D1: .long 0x01d10008
MIMC_D2: .long 0x01d10009
MIMC_D3: .long 0x01d10209
SCR4_D1: .long 0x00000001
SCR4_D2: .long 0x00000002
SCR4_D3: .long 0x00000003
SCR4_D4: .long 0x00000004
STRC_D: .long 0x000f3980
SDR4_D: .long 0x00000300
SDMR00308_D: .long 0x00000000
SDMR00B08_D: .long 0x00000000
SDMR02000_D: .long 0x00000000
PSEL0_D: .long 0x00000001
PSEL1_D: .long 0x00000244
SR_MASK_D: .long 0xEFFFFF0F
WDTST_D: .long 0x5A000FFF
WDTCSR_D: .long 0xA5000000
WDTBST_D: .long 0x55000000
|
