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
|
/*
* (C) Copyright 2004
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/processor.h>
#include <command.h>
#define MEM_MCOPT1_INIT_VAL 0x00800000
#define MEM_RTR_INIT_VAL 0x04070000
#define MEM_PMIT_INIT_VAL 0x07c00000
#define MEM_MB0CF_INIT_VAL 0x00082001
#define MEM_MB1CF_INIT_VAL 0x04082000
#define MEM_SDTR1_INIT_VAL 0x00854005
#define SDRAM0_CFG_ENABLE 0x80000000
#define CONFIG_SYS_SDRAM_SIZE 0x04000000 /* 64 MB */
int board_early_init_f (void)
{
#if 0 /* test-only */
mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
mtdcr (UIC0ER, 0x00000000); /* disable all ints */
mtdcr (UIC0CR, 0x00000010);
mtdcr (UIC0PR, 0xFFFF7FF0); /* set int polarities */
mtdcr (UIC0TR, 0x00000010); /* set int trigger levels */
mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
#else
mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
mtdcr(UIC0ER, 0x00000000); /* disable all ints */
mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/
mtdcr(UIC0PR, 0xFFFFFFF0); /* set int polarities */
mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority*/
mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
#endif
#if 1 /* test-only */
/*
* EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
*/
mtebc (EBC0_CFG, 0xa8400000); /* ebc always driven */
#endif
return 0;
}
int misc_init_f (void)
{
return 0; /* dummy implementation */
}
int misc_init_r (void)
{
#if defined(CONFIG_CMD_NAND)
/*
* Set NAND-FLASH GPIO signals to default
*/
out32(GPIO0_OR, in32(GPIO0_OR) & ~(CONFIG_SYS_NAND_CLE | CONFIG_SYS_NAND_ALE));
out32(GPIO0_OR, in32(GPIO0_OR) | CONFIG_SYS_NAND_CE);
#endif
return (0);
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
char str[64];
int i = getenv_f("serial#", str, sizeof(str));
puts ("Board: ");
if (i == -1) {
puts ("### No HW ID - assuming G2000");
} else {
puts(str);
}
putc ('\n');
return 0;
}
/* -------------------------------------------------------------------------
G2000 rev B is an embeded design. we don't read for spd of this version.
Doing static SDRAM controller configuration in the following section.
------------------------------------------------------------------------- */
long int init_sdram_static_settings(void)
{
/* disable memcontroller so updates work */
mtsdram(SDRAM0_CFG, MEM_MCOPT1_INIT_VAL);
mtsdram(SDRAM0_RTR, MEM_RTR_INIT_VAL);
mtsdram(SDRAM0_PMIT, MEM_PMIT_INIT_VAL);
mtsdram(SDRAM0_B0CR, MEM_MB0CF_INIT_VAL);
mtsdram(SDRAM0_B1CR, MEM_MB1CF_INIT_VAL);
mtsdram(SDRAM0_TR, MEM_SDTR1_INIT_VAL);
/* SDRAM have a power on delay, 500 micro should do */
udelay(500);
mtsdram(SDRAM0_CFG, MEM_MCOPT1_INIT_VAL|SDRAM0_CFG_ENABLE);
return (CONFIG_SYS_SDRAM_SIZE); /* CONFIG_SYS_SDRAM_SIZE is in G2000.h */
}
phys_size_t initdram (int board_type)
{
long int ret;
/* flzt, we can still turn this on in the future */
/* #ifdef CONFIG_SPD_EEPROM
ret = spd_sdram ();
#else
ret = init_sdram_static_settings();
#endif
*/
ret = init_sdram_static_settings();
return ret;
}
#if 0 /* test-only !!! */
int do_dumpebc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong ap, cr;
printf("\nEBC registers for PPC405GP:\n");
mfebc(PB0AP, ap); mfebc(PB0CR, cr);
printf("0: AP=%08lx CP=%08lx\n", ap, cr);
mfebc(PB1AP, ap); mfebc(PB1CR, cr);
printf("1: AP=%08lx CP=%08lx\n", ap, cr);
mfebc(PB2AP, ap); mfebc(PB2CR, cr);
printf("2: AP=%08lx CP=%08lx\n", ap, cr);
mfebc(PB3AP, ap); mfebc(PB3CR, cr);
printf("3: AP=%08lx CP=%08lx\n", ap, cr);
mfebc(PB4AP, ap); mfebc(PB4CR, cr);
printf("4: AP=%08lx CP=%08lx\n", ap, cr);
printf("\n");
return 0;
}
U_BOOT_CMD(
dumpebc, 1, 1, do_dumpebc,
"Dump all EBC registers",
""
);
int do_dumpdcr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i;
printf("\nDevice Configuration Registers (DCR's) for PPC405GP:");
for (i=0; i<=0x1e0; i++) {
if (!(i % 0x8)) {
printf("\n%04x ", i);
}
printf("%08lx ", get_dcr(i));
}
printf("\n");
return 0;
}
U_BOOT_CMD(
dumpdcr, 1, 1, do_dumpdcr,
"Dump all DCR registers",
""
);
int do_dumpspr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
printf("\nSpecial Purpose Registers (SPR's) for PPC405GP:");
printf("\n%04x %08x ", 947, mfspr(947));
printf("\n%04x %08x ", 9, mfspr(9));
printf("\n%04x %08x ", 1014, mfspr(1014));
printf("\n%04x %08x ", 1015, mfspr(1015));
printf("\n%04x %08x ", 1010, mfspr(1010));
printf("\n%04x %08x ", 957, mfspr(957));
printf("\n%04x %08x ", 1008, mfspr(1008));
printf("\n%04x %08x ", 1018, mfspr(1018));
printf("\n%04x %08x ", 954, mfspr(954));
printf("\n%04x %08x ", 950, mfspr(950));
printf("\n%04x %08x ", 951, mfspr(951));
printf("\n%04x %08x ", 981, mfspr(981));
printf("\n%04x %08x ", 980, mfspr(980));
printf("\n%04x %08x ", 982, mfspr(982));
printf("\n%04x %08x ", 1012, mfspr(1012));
printf("\n%04x %08x ", 1013, mfspr(1013));
printf("\n%04x %08x ", 948, mfspr(948));
printf("\n%04x %08x ", 949, mfspr(949));
printf("\n%04x %08x ", 1019, mfspr(1019));
printf("\n%04x %08x ", 979, mfspr(979));
printf("\n%04x %08x ", 8, mfspr(8));
printf("\n%04x %08x ", 945, mfspr(945));
printf("\n%04x %08x ", 987, mfspr(987));
printf("\n%04x %08x ", 287, mfspr(287));
printf("\n%04x %08x ", 953, mfspr(953));
printf("\n%04x %08x ", 955, mfspr(955));
printf("\n%04x %08x ", 272, mfspr(272));
printf("\n%04x %08x ", 273, mfspr(273));
printf("\n%04x %08x ", 274, mfspr(274));
printf("\n%04x %08x ", 275, mfspr(275));
printf("\n%04x %08x ", 260, mfspr(260));
printf("\n%04x %08x ", 276, mfspr(276));
printf("\n%04x %08x ", 261, mfspr(261));
printf("\n%04x %08x ", 277, mfspr(277));
printf("\n%04x %08x ", 262, mfspr(262));
printf("\n%04x %08x ", 278, mfspr(278));
printf("\n%04x %08x ", 263, mfspr(263));
printf("\n%04x %08x ", 279, mfspr(279));
printf("\n%04x %08x ", 26, mfspr(26));
printf("\n%04x %08x ", 27, mfspr(27));
printf("\n%04x %08x ", 990, mfspr(990));
printf("\n%04x %08x ", 991, mfspr(991));
printf("\n%04x %08x ", 956, mfspr(956));
printf("\n%04x %08x ", 284, mfspr(284));
printf("\n%04x %08x ", 285, mfspr(285));
printf("\n%04x %08x ", 986, mfspr(986));
printf("\n%04x %08x ", 984, mfspr(984));
printf("\n%04x %08x ", 256, mfspr(256));
printf("\n%04x %08x ", 1, mfspr(1));
printf("\n%04x %08x ", 944, mfspr(944));
printf("\n");
return 0;
}
U_BOOT_CMD(
dumpspr, 1, 1, do_dumpspr,
"Dump all SPR registers",
""
);
#endif
|
