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
|
/*
* (C) Copyright 2005-2009
* BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de>
*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include "asm/m5282.h"
#include <bmp_layout.h>
#include <status_led.h>
#include <bus_vcxk.h>
/*---------------------------------------------------------------------------*/
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_VIDEO
unsigned long display_width;
unsigned long display_height;
#endif
/*---------------------------------------------------------------------------*/
int checkboard (void)
{
puts("Board: EB+CPU5282 (BuS Elektronik GmbH & Co. KG)\n");
#if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
puts(" Boot from Internal FLASH\n");
#endif
return 0;
}
phys_size_t initdram (int board_type)
{
int size, i;
size = 0;
MCFSDRAMC_DCR = MCFSDRAMC_DCR_RTIM_6 |
MCFSDRAMC_DCR_RC((15 * CONFIG_SYS_CLK / 1000000) >> 4);
asm (" nop");
#ifdef CONFIG_SYS_SDRAM_BASE0
MCFSDRAMC_DACR0 = MCFSDRAMC_DACR_BASE(CONFIG_SYS_SDRAM_BASE0)|
MCFSDRAMC_DACR_CASL(1) | MCFSDRAMC_DACR_CBM(3) |
MCFSDRAMC_DACR_PS_32;
asm (" nop");
MCFSDRAMC_DMR0 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
asm (" nop");
MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IP;
asm (" nop");
for (i = 0; i < 10; i++)
asm (" nop");
*(unsigned long *)(CONFIG_SYS_SDRAM_BASE0) = 0xA5A5A5A5;
asm (" nop");
MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_RE;
asm (" nop");
for (i = 0; i < 2000; i++)
asm (" nop");
MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IMRS;
asm (" nop");
/* write SDRAM mode register */
*(unsigned long *)(CONFIG_SYS_SDRAM_BASE0 + 0x80440) = 0xA5A5A5A5;
asm (" nop");
size += CONFIG_SYS_SDRAM_SIZE0 * 1024 * 1024;
#endif
#ifdef CONFIG_SYS_SDRAM_BASE1xx
MCFSDRAMC_DACR1 = MCFSDRAMC_DACR_BASE (CONFIG_SYS_SDRAM_BASE1)
| MCFSDRAMC_DACR_CASL (1)
| MCFSDRAMC_DACR_CBM (3)
| MCFSDRAMC_DACR_PS_16;
MCFSDRAMC_DMR1 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IP;
*(unsigned short *) (CONFIG_SYS_SDRAM_BASE1) = 0xA5A5;
MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_RE;
for (i = 0; i < 2000; i++)
asm (" nop");
MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IMRS;
*(unsigned int *) (CONFIG_SYS_SDRAM_BASE1 + 0x220) = 0xA5A5;
size += CONFIG_SYS_SDRAM_SIZE1 * 1024 * 1024;
#endif
return size;
}
#if defined(CONFIG_SYS_DRAM_TEST)
int testdram (void)
{
uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
uint *p;
printf("SDRAM test phase 1:\n");
for (p = pstart; p < pend; p++)
*p = 0xaaaaaaaa;
for (p = pstart; p < pend; p++) {
if (*p != 0xaaaaaaaa) {
printf ("SDRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
printf("SDRAM test phase 2:\n");
for (p = pstart; p < pend; p++)
*p = 0x55555555;
for (p = pstart; p < pend; p++) {
if (*p != 0x55555555) {
printf ("SDRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
printf("SDRAM test passed.\n");
return 0;
}
#endif
#if defined(CONFIG_HW_WATCHDOG)
void hw_watchdog_init(void)
{
char *s;
int enable;
enable = 1;
s = getenv("watchdog");
if (s != NULL)
if ((strncmp(s, "off", 3) == 0) || (strncmp(s, "0", 1) == 0))
enable = 0;
if (enable)
MCFGPTA_GPTDDR |= (1<<2);
else
MCFGPTA_GPTDDR &= ~(1<<2);
}
void hw_watchdog_reset(void)
{
MCFGPTA_GPTPORT ^= (1<<2);
}
#endif
int misc_init_r(void)
{
#ifdef CONFIG_HW_WATCHDOG
hw_watchdog_init();
#endif
return 1;
}
void __led_toggle(led_id_t mask)
{
MCFGPTA_GPTPORT ^= (1 << 3);
}
void __led_init(led_id_t mask, int state)
{
__led_set(mask, state);
MCFGPTA_GPTDDR |= (1 << 3);
}
void __led_set(led_id_t mask, int state)
{
if (state == STATUS_LED_ON)
MCFGPTA_GPTPORT |= (1 << 3);
else
MCFGPTA_GPTPORT &= ~(1 << 3);
}
#if defined(CONFIG_VIDEO)
int drv_video_init(void)
{
char *s;
#ifdef CONFIG_SPLASH_SCREEN
unsigned long splash;
#endif
printf("Init Video as ");
s = getenv("displaywidth");
if (s != NULL)
display_width = simple_strtoul(s, NULL, 10);
else
display_width = 256;
s = getenv("displayheight");
if (s != NULL)
display_height = simple_strtoul(s, NULL, 10);
else
display_height = 256;
printf("%lu x %lu pixel matrix\n", display_width, display_height);
MCFCCM_CCR &= ~MCFCCM_CCR_SZEN;
MCFGPIO_PEPAR &= ~MCFGPIO_PEPAR_PEPA2;
vcxk_init(display_width, display_height);
#ifdef CONFIG_SPLASH_SCREEN
s = getenv("splashimage");
if (s != NULL) {
splash = simple_strtoul(s, NULL, 16);
vcxk_acknowledge_wait();
video_display_bitmap(splash, 0, 0);
}
#endif
return 0;
}
#endif
/*---------------------------------------------------------------------------*/
#ifdef CONFIG_VIDEO
int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rcode = 0;
ulong side;
ulong bright;
switch (argc) {
case 3:
side = simple_strtoul(argv[1], NULL, 10);
bright = simple_strtoul(argv[2], NULL, 10);
if ((side >= 0) && (side <= 3) &&
(bright >= 0) && (bright <= 1000)) {
vcxk_setbrightness(side, bright);
rcode = 0;
} else {
printf("parameters out of range\n");
printf("Usage:\n%s\n", cmdtp->usage);
rcode = 1;
}
break;
default:
printf("Usage:\n%s\n", cmdtp->usage);
rcode = 1;
break;
}
return rcode;
}
/*---------------------------------------------------------------------------*/
U_BOOT_CMD(
bright, 3, 0, do_brightness,
"sets the display brightness\n",
" <side> <0..1000>\n side: 0/3=both; 1=first; 2=second\n"
);
#endif
/* EOF EB+MCF-EV123.c */
|
