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
|
/*
* (C) Copyright 2001
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* 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
*/
#include <common.h>
#include "dasa_sim.h"
/* ------------------------------------------------------------------------- */
#undef FPGA_DEBUG
#define _NOT_USED_ 0xFFFFFFFF
/* ------------------------------------------------------------------------- */
/* fpga configuration data - generated by bit2inc */
static unsigned char fpgadata[] = {
#include "fpgadata.c"
};
#define FPGA_PRG_SLEEP 32 /* fpga program sleep-time */
#define LOAD_LONG(a) a
/******************************************************************************
*
* sysFpgaBoot - Load fpga-image into fpga
*
*/
static int fpgaBoot (void)
{
int i, j, index, len;
unsigned char b;
int imageSize;
imageSize = sizeof (fpgadata);
/* display infos on fpgaimage */
index = 15;
for (i = 0; i < 4; i++) {
len = fpgadata[index];
index += len + 3;
}
/* search for preamble 0xFF2X */
for (index = 0; index < imageSize - 1; index++) {
if ((fpgadata[index] == 0xff)
&& ((fpgadata[index + 1] & 0xf0) == 0x20))
break;
}
/* enable cs1 instead of user0... */
*(unsigned long *) 0x50000084 &= ~0x00000002;
#ifdef FPGA_DEBUG
printf ("%s\n",
((in32 (0x50000084) & 0x00010000) == 0) ? "NOT DONE" : "DONE");
#endif
/* init fpga by asserting and deasserting PROGRAM* (USER2)... */
*(unsigned long *) 0x50000084 &= ~0x00000400;
udelay (FPGA_PRG_SLEEP * 1000);
*(unsigned long *) 0x50000084 |= 0x00000400;
udelay (FPGA_PRG_SLEEP * 1000);
#ifdef FPGA_DEBUG
printf ("%s\n",
((in32 (0x50000084) & 0x00010000) == 0) ? "NOT DONE" : "DONE");
#endif
/* cs1: disable burst, disable ready */
*(unsigned long *) 0x50000114 &= ~0x00000300;
/* cs1: set write timing */
*(unsigned long *) 0x50000118 |= 0x00010900;
/* write configuration-data into fpga... */
for (i = index; i < imageSize; i++) {
b = fpgadata[i];
for (j = 0; j < 8; j++) {
*(unsigned long *) 0x30000000 =
((b & 0x80) == 0x80)
? LOAD_LONG (0x03030101)
: LOAD_LONG (0x02020000);
b <<= 1;
}
}
#ifdef FPGA_DEBUG
printf ("%s\n",
((in32 (0x50000084) & 0x00010000) == 0) ? "NOT DONE" : "DONE");
#endif
/* set cs1 to 32 bit data-width, disable burst, enable ready */
*(unsigned long *) 0x50000114 |= 0x00000202;
*(unsigned long *) 0x50000114 &= ~0x00000100;
/* cs1: set iop access to little endian */
*(unsigned long *) 0x50000114 &= ~0x00000010;
/* cs1: set read and write timing */
*(unsigned long *) 0x50000118 = 0x00010000;
*(unsigned long *) 0x5000011c = 0x00010001;
#ifdef FPGA_DEBUG
printf ("%s\n",
((in32 (0x50000084) & 0x00010000) == 0) ? "NOT DONE" : "DONE");
#endif
/* wait for 30 ms... */
udelay (30 * 1000);
/* check if fpga's DONE signal - correctly booted ? */
if ((*(unsigned long *) 0x50000084 & 0x00010000) == 0)
return -1;
return 0;
}
int board_pre_init (void)
{
/*
* Init pci regs
*/
*(unsigned long *) 0x50000304 = 0x02900007; /* enable mem/io/master bits */
*(unsigned long *) 0x500001b4 = 0x00000000; /* disable pci interrupt output enable */
*(unsigned long *) 0x50000354 = 0x00c05800; /* disable emun interrupt output enable */
*(unsigned long *) 0x50000344 = 0x00000000; /* disable pme interrupt output enable */
*(unsigned long *) 0x50000310 = 0x00000000; /* pcibar0 */
*(unsigned long *) 0x50000314 = 0x00000000; /* pcibar1 */
*(unsigned long *) 0x50000318 = 0x00000000; /* pcibar2 */
return 0;
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
int index;
int len;
unsigned char str[64];
int i = getenv_r ("serial#", str, sizeof (str));
int fpga;
unsigned short val;
puts ("Board: ");
/*
* Boot onboard FPGA
*/
fpga = fpgaBoot ();
if (!i || strncmp (str, "DASA_SIM", 8)) {
puts ("### No HW ID - assuming DASA_SIM");
}
puts (str);
if (fpga == 0) {
val = *(unsigned short *) 0x30000202;
printf (" (Id=%d Version=%d Revision=%d)",
(val & 0x07f8) >> 3, val & 0x0001, (val & 0x0006) >> 1);
puts ("\nFPGA: ");
/* display infos on fpgaimage */
index = 15;
for (i = 0; i < 4; i++) {
len = fpgadata[index];
printf ("%s ", &(fpgadata[index + 1]));
index += len + 3;
}
} else {
puts ("\nFPGA: Booting failed!");
}
putc ('\n');
return 0;
}
/* ------------------------------------------------------------------------- */
long int initdram (int board_type)
{
return (16 * 1024 * 1024);
}
/* ------------------------------------------------------------------------- */
int testdram (void)
{
/* TODO: XXX XXX XXX */
printf ("test: 16 MB - ok\n");
return (0);
}
/* ------------------------------------------------------------------------- */
|
