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
280
281
282
283
284
285
286
|
/*
* (C) Copyright 2001
* Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*
* hacked for evb440spe
*/
#include <common.h>
#include <command.h>
#include "yucca.h"
#include <i2c.h>
#include <asm/byteorder.h>
extern void print_evb440spe_info(void);
static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag,
int flag, int argc, char * const argv[]);
/* ------------------------------------------------------------------------- */
int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
return setBootStrapClock (cmdtp, 1, flag, argc, argv);
}
/* ------------------------------------------------------------------------- */
/* Modify memory.
*
* Syntax:
* evb440spe wrclk prom0,prom1
*/
static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
int argc, char * const argv[])
{
uchar chip;
ulong data;
int nbytes;
extern char console_buffer[];
char sysClock[4];
char cpuClock[4];
char plbClock[4];
char pcixClock[4];
if (argc < 3) {
cmd_usage(cmdtp);
return 1;
}
if (strcmp(argv[2], "prom0") == 0)
chip = IIC0_BOOTPROM_ADDR;
else
chip = IIC0_ALT_BOOTPROM_ADDR;
do {
printf("enter sys clock frequency 33 or 66 MHz or quit to abort\n");
nbytes = readline (" ? ");
if (strcmp(console_buffer, "quit") == 0)
return 0;
if ((strcmp(console_buffer, "33") != 0) &
(strcmp(console_buffer, "66") != 0))
nbytes=0;
strcpy(sysClock, console_buffer);
} while (nbytes == 0);
do {
if (strcmp(sysClock, "66") == 0) {
printf("enter cpu clock frequency 400, 533 MHz or quit to abort\n");
} else {
#ifdef CONFIG_STRESS
printf("enter cpu clock frequency 400, 500, 533, 667 MHz or quit to abort\n");
#else
printf("enter cpu clock frequency 400, 500, 533 MHz or quit to abort\n");
#endif
}
nbytes = readline (" ? ");
if (strcmp(console_buffer, "quit") == 0)
return 0;
if (strcmp(sysClock, "66") == 0) {
if ((strcmp(console_buffer, "400") != 0) &
(strcmp(console_buffer, "533") != 0)
#ifdef CONFIG_STRESS
& (strcmp(console_buffer, "667") != 0)
#endif
) {
nbytes = 0;
}
} else {
if ((strcmp(console_buffer, "400") != 0) &
(strcmp(console_buffer, "500") != 0) &
(strcmp(console_buffer, "533") != 0)
#ifdef CONFIG_STRESS
& (strcmp(console_buffer, "667") != 0)
#endif
) {
nbytes = 0;
}
}
strcpy(cpuClock, console_buffer);
} while (nbytes == 0);
if (strcmp(cpuClock, "500") == 0){
strcpy(plbClock, "166");
} else if (strcmp(cpuClock, "533") == 0){
strcpy(plbClock, "133");
} else {
do {
if (strcmp(cpuClock, "400") == 0)
printf("enter plb clock frequency 100, 133 MHz or quit to abort\n");
#ifdef CONFIG_STRESS
if (strcmp(cpuClock, "667") == 0)
printf("enter plb clock frequency 133, 166 MHz or quit to abort\n");
#endif
nbytes = readline (" ? ");
if (strcmp(console_buffer, "quit") == 0)
return 0;
if (strcmp(cpuClock, "400") == 0) {
if ((strcmp(console_buffer, "100") != 0) &
(strcmp(console_buffer, "133") != 0))
nbytes = 0;
}
#ifdef CONFIG_STRESS
if (strcmp(cpuClock, "667") == 0) {
if ((strcmp(console_buffer, "133") != 0) &
(strcmp(console_buffer, "166") != 0))
nbytes = 0;
}
#endif
strcpy(plbClock, console_buffer);
} while (nbytes == 0);
}
do {
printf("enter Pci-X clock frequency 33, 66, 100 or 133 MHz or quit to abort\n");
nbytes = readline (" ? ");
if (strcmp(console_buffer, "quit") == 0)
return 0;
if ((strcmp(console_buffer, "33") != 0) &
(strcmp(console_buffer, "66") != 0) &
(strcmp(console_buffer, "100") != 0) &
(strcmp(console_buffer, "133") != 0)) {
nbytes = 0;
}
strcpy(pcixClock, console_buffer);
} while (nbytes == 0);
printf("\nsys clk = %s MHz\n", sysClock);
printf("cpu clk = %s MHz\n", cpuClock);
printf("plb clk = %s MHz\n", plbClock);
printf("Pci-X clk = %s MHz\n", pcixClock);
do {
printf("\npress [y] to write I2C bootstrap \n");
printf("or [n] to abort. \n");
printf("Don't forget to set board switches \n");
printf("according to your choice before re-starting \n");
printf("(refer to 440spe_uboot_kit_um_1_01.pdf) \n");
nbytes = readline (" ? ");
if (strcmp(console_buffer, "n") == 0)
return 0;
} while (nbytes == 0);
if (strcmp(sysClock, "33") == 0) {
if ((strcmp(cpuClock, "400") == 0) &
(strcmp(plbClock, "100") == 0))
data = 0x8678c206;
if ((strcmp(cpuClock, "400") == 0) &
(strcmp(plbClock, "133") == 0))
data = 0x8678c2c6;
if ((strcmp(cpuClock, "500") == 0))
data = 0x8778f2c6;
if ((strcmp(cpuClock, "533") == 0))
data = 0x87790252;
#ifdef CONFIG_STRESS
if ((strcmp(cpuClock, "667") == 0) &
(strcmp(plbClock, "133") == 0))
data = 0x87794256;
if ((strcmp(cpuClock, "667") == 0) &
(strcmp(plbClock, "166") == 0))
data = 0x87794206;
#endif
}
if (strcmp(sysClock, "66") == 0) {
if ((strcmp(cpuClock, "400") == 0) &
(strcmp(plbClock, "100") == 0))
data = 0x84706206;
if ((strcmp(cpuClock, "400") == 0) &
(strcmp(plbClock, "133") == 0))
data = 0x847062c6;
if ((strcmp(cpuClock, "533") == 0))
data = 0x85708206;
#ifdef CONFIG_STRESS
if ((strcmp(cpuClock, "667") == 0) &
(strcmp(plbClock, "133") == 0))
data = 0x8570a256;
if ((strcmp(cpuClock, "667") == 0) &
(strcmp(plbClock, "166") == 0))
data = 0x8570a206;
#endif
}
#ifdef DEBUG
printf(" pin strap0 to write in i2c = %x\n", data);
#endif /* DEBUG */
if (i2c_write(chip, 0, 1, (uchar *)&data, 4) != 0)
printf("Error writing strap0 in %s\n", argv[2]);
if (strcmp(pcixClock, "33") == 0)
data = 0x00000701;
if (strcmp(pcixClock, "66") == 0)
data = 0x00000601;
if (strcmp(pcixClock, "100") == 0)
data = 0x00000501;
if (strcmp(pcixClock, "133") == 0)
data = 0x00000401;
if (strcmp(plbClock, "166") == 0)
data = data | 0x05950000;
else
data = data | 0x05A50000;
#ifdef DEBUG
printf(" pin strap1 to write in i2c = %x\n", data);
#endif /* DEBUG */
udelay(1000);
if (i2c_write(chip, 4, 1, (uchar *)&data, 4) != 0)
printf("Error writing strap1 in %s\n", argv[2]);
return 0;
}
U_BOOT_CMD(
evb440spe, 3, 1, do_evb440spe,
"program the serial device strap",
"wrclk [prom0|prom1] - program the serial device strap"
);
|
