1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2005-2009
4 * BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de>
5 *
6 * (C) Copyright 2000-2003
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 */
9
10 #include <common.h>
11 #include <command.h>
12 #include "asm/m5282.h"
13 #include <bmp_layout.h>
14 #include <env.h>
15 #include <status_led.h>
16 #include <bus_vcxk.h>
17
18 /*---------------------------------------------------------------------------*/
19
20 DECLARE_GLOBAL_DATA_PTR;
21
22 #ifdef CONFIG_VIDEO
23 unsigned long display_width;
24 unsigned long display_height;
25 #endif
26
27 /*---------------------------------------------------------------------------*/
28
checkboard(void)29 int checkboard (void)
30 {
31 puts("Board: EB+CPU5282 (BuS Elektronik GmbH & Co. KG)\n");
32 #if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
33 puts(" Boot from Internal FLASH\n");
34 #endif
35 return 0;
36 }
37
dram_init(void)38 int dram_init(void)
39 {
40 int size, i;
41
42 size = 0;
43 MCFSDRAMC_DCR = MCFSDRAMC_DCR_RTIM_6 |
44 MCFSDRAMC_DCR_RC((15 * CONFIG_SYS_CLK / 1000000) >> 4);
45 asm (" nop");
46 #ifdef CONFIG_SYS_SDRAM_BASE0
47 MCFSDRAMC_DACR0 = MCFSDRAMC_DACR_BASE(CONFIG_SYS_SDRAM_BASE0)|
48 MCFSDRAMC_DACR_CASL(1) | MCFSDRAMC_DACR_CBM(3) |
49 MCFSDRAMC_DACR_PS_32;
50 asm (" nop");
51
52 MCFSDRAMC_DMR0 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
53 asm (" nop");
54
55 MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IP;
56 asm (" nop");
57 for (i = 0; i < 10; i++)
58 asm (" nop");
59
60 *(unsigned long *)(CONFIG_SYS_SDRAM_BASE0) = 0xA5A5A5A5;
61 asm (" nop");
62 MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_RE;
63 asm (" nop");
64
65 for (i = 0; i < 2000; i++)
66 asm (" nop");
67
68 MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IMRS;
69 asm (" nop");
70 /* write SDRAM mode register */
71 *(unsigned long *)(CONFIG_SYS_SDRAM_BASE0 + 0x80440) = 0xA5A5A5A5;
72 asm (" nop");
73 size += CONFIG_SYS_SDRAM_SIZE0 * 1024 * 1024;
74 #endif
75 #ifdef CONFIG_SYS_SDRAM_BASE1xx
76 MCFSDRAMC_DACR1 = MCFSDRAMC_DACR_BASE (CONFIG_SYS_SDRAM_BASE1)
77 | MCFSDRAMC_DACR_CASL (1)
78 | MCFSDRAMC_DACR_CBM (3)
79 | MCFSDRAMC_DACR_PS_16;
80
81 MCFSDRAMC_DMR1 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
82
83 MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IP;
84
85 *(unsigned short *) (CONFIG_SYS_SDRAM_BASE1) = 0xA5A5;
86 MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_RE;
87
88 for (i = 0; i < 2000; i++)
89 asm (" nop");
90
91 MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IMRS;
92 *(unsigned int *) (CONFIG_SYS_SDRAM_BASE1 + 0x220) = 0xA5A5;
93 size += CONFIG_SYS_SDRAM_SIZE1 * 1024 * 1024;
94 #endif
95 gd->ram_size = size;
96
97 return 0;
98 }
99
100 #if defined(CONFIG_SYS_DRAM_TEST)
testdram(void)101 int testdram (void)
102 {
103 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
104 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
105 uint *p;
106
107 printf("SDRAM test phase 1:\n");
108 for (p = pstart; p < pend; p++)
109 *p = 0xaaaaaaaa;
110
111 for (p = pstart; p < pend; p++) {
112 if (*p != 0xaaaaaaaa) {
113 printf ("SDRAM test fails at: %08x\n", (uint) p);
114 return 1;
115 }
116 }
117
118 printf("SDRAM test phase 2:\n");
119 for (p = pstart; p < pend; p++)
120 *p = 0x55555555;
121
122 for (p = pstart; p < pend; p++) {
123 if (*p != 0x55555555) {
124 printf ("SDRAM test fails at: %08x\n", (uint) p);
125 return 1;
126 }
127 }
128
129 printf("SDRAM test passed.\n");
130 return 0;
131 }
132 #endif
133
134 #if defined(CONFIG_HW_WATCHDOG)
135
hw_watchdog_init(void)136 void hw_watchdog_init(void)
137 {
138 char *s;
139 int enable;
140
141 enable = 1;
142 s = env_get("watchdog");
143 if (s != NULL)
144 if ((strncmp(s, "off", 3) == 0) || (strncmp(s, "0", 1) == 0))
145 enable = 0;
146 if (enable)
147 MCFGPTA_GPTDDR |= (1<<2);
148 else
149 MCFGPTA_GPTDDR &= ~(1<<2);
150 }
151
hw_watchdog_reset(void)152 void hw_watchdog_reset(void)
153 {
154 MCFGPTA_GPTPORT ^= (1<<2);
155 }
156 #endif
157
misc_init_r(void)158 int misc_init_r(void)
159 {
160 #ifdef CONFIG_HW_WATCHDOG
161 hw_watchdog_init();
162 #endif
163 return 1;
164 }
165
__led_toggle(led_id_t mask)166 void __led_toggle(led_id_t mask)
167 {
168 MCFGPTA_GPTPORT ^= (1 << 3);
169 }
170
__led_init(led_id_t mask,int state)171 void __led_init(led_id_t mask, int state)
172 {
173 __led_set(mask, state);
174 MCFGPTA_GPTDDR |= (1 << 3);
175 }
176
__led_set(led_id_t mask,int state)177 void __led_set(led_id_t mask, int state)
178 {
179 if (state == CONFIG_LED_STATUS_ON)
180 MCFGPTA_GPTPORT |= (1 << 3);
181 else
182 MCFGPTA_GPTPORT &= ~(1 << 3);
183 }
184
185 #if defined(CONFIG_VIDEO)
186
drv_video_init(void)187 int drv_video_init(void)
188 {
189 char *s;
190 #ifdef CONFIG_SPLASH_SCREEN
191 unsigned long splash;
192 #endif
193 printf("Init Video as ");
194 s = env_get("displaywidth");
195 if (s != NULL)
196 display_width = simple_strtoul(s, NULL, 10);
197 else
198 display_width = 256;
199
200 s = env_get("displayheight");
201 if (s != NULL)
202 display_height = simple_strtoul(s, NULL, 10);
203 else
204 display_height = 256;
205
206 printf("%lu x %lu pixel matrix\n", display_width, display_height);
207
208 MCFCCM_CCR &= ~MCFCCM_CCR_SZEN;
209 MCFGPIO_PEPAR &= ~MCFGPIO_PEPAR_PEPA2;
210
211 vcxk_init(display_width, display_height);
212
213 #ifdef CONFIG_SPLASH_SCREEN
214 s = env_get("splashimage");
215 if (s != NULL) {
216 splash = simple_strtoul(s, NULL, 16);
217 vcxk_acknowledge_wait();
218 video_display_bitmap(splash, 0, 0);
219 }
220 #endif
221 return 0;
222 }
223 #endif
224
225 /*---------------------------------------------------------------------------*/
226
227 #ifdef CONFIG_VIDEO
do_brightness(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])228 int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
229 {
230 int rcode = 0;
231 ulong side;
232 ulong bright;
233
234 switch (argc) {
235 case 3:
236 side = simple_strtoul(argv[1], NULL, 10);
237 bright = simple_strtoul(argv[2], NULL, 10);
238 if ((side >= 0) && (side <= 3) &&
239 (bright >= 0) && (bright <= 1000)) {
240 vcxk_setbrightness(side, bright);
241 rcode = 0;
242 } else {
243 printf("parameters out of range\n");
244 printf("Usage:\n%s\n", cmdtp->usage);
245 rcode = 1;
246 }
247 break;
248 default:
249 printf("Usage:\n%s\n", cmdtp->usage);
250 rcode = 1;
251 break;
252 }
253 return rcode;
254 }
255
256 /*---------------------------------------------------------------------------*/
257
258 U_BOOT_CMD(
259 bright, 3, 0, do_brightness,
260 "sets the display brightness\n",
261 " <side> <0..1000>\n side: 0/3=both; 1=first; 2=second\n"
262 );
263
264 #endif
265
266 /* EOF EB+MCF-EV123.c */
267