1 /*
2  * (C) Copyright 2005-2009
3  * BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de>
4  *
5  * (C) Copyright 2000-2003
6  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7  *
8  * SPDX-License-Identifier:	GPL-2.0+
9  */
10 
11 #include <common.h>
12 #include <command.h>
13 #include "asm/m5282.h"
14 #include <bmp_layout.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 
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 
38 phys_size_t initdram (int board_type)
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 	return size;
96 }
97 
98 #if defined(CONFIG_SYS_DRAM_TEST)
99 int testdram (void)
100 {
101 	uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
102 	uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
103 	uint *p;
104 
105 	printf("SDRAM test phase 1:\n");
106 	for (p = pstart; p < pend; p++)
107 		*p = 0xaaaaaaaa;
108 
109 	for (p = pstart; p < pend; p++) {
110 		if (*p != 0xaaaaaaaa) {
111 			printf ("SDRAM test fails at: %08x\n", (uint) p);
112 			return 1;
113 		}
114 	}
115 
116 	printf("SDRAM test phase 2:\n");
117 	for (p = pstart; p < pend; p++)
118 		*p = 0x55555555;
119 
120 	for (p = pstart; p < pend; p++) {
121 		if (*p != 0x55555555) {
122 			printf ("SDRAM test fails at: %08x\n", (uint) p);
123 			return 1;
124 		}
125 	}
126 
127 	printf("SDRAM test passed.\n");
128 	return 0;
129 }
130 #endif
131 
132 #if defined(CONFIG_HW_WATCHDOG)
133 
134 void hw_watchdog_init(void)
135 {
136 	char *s;
137 	int enable;
138 
139 	enable = 1;
140 	s = getenv("watchdog");
141 	if (s != NULL)
142 		if ((strncmp(s, "off", 3) == 0) || (strncmp(s, "0", 1) == 0))
143 			enable = 0;
144 	if (enable)
145 		MCFGPTA_GPTDDR  |= (1<<2);
146 	else
147 		MCFGPTA_GPTDDR  &= ~(1<<2);
148 }
149 
150 void hw_watchdog_reset(void)
151 {
152 	MCFGPTA_GPTPORT  ^= (1<<2);
153 }
154 #endif
155 
156 int misc_init_r(void)
157 {
158 #ifdef	CONFIG_HW_WATCHDOG
159 	hw_watchdog_init();
160 #endif
161 	return 1;
162 }
163 
164 void __led_toggle(led_id_t mask)
165 {
166 	MCFGPTA_GPTPORT ^= (1 << 3);
167 }
168 
169 void __led_init(led_id_t mask, int state)
170 {
171 	__led_set(mask, state);
172 	MCFGPTA_GPTDDR  |= (1 << 3);
173 }
174 
175 void __led_set(led_id_t mask, int state)
176 {
177 	if (state == STATUS_LED_ON)
178 		MCFGPTA_GPTPORT |= (1 << 3);
179 	else
180 		MCFGPTA_GPTPORT &= ~(1 << 3);
181 }
182 
183 #if defined(CONFIG_VIDEO)
184 
185 int drv_video_init(void)
186 {
187 	char *s;
188 #ifdef CONFIG_SPLASH_SCREEN
189 	unsigned long splash;
190 #endif
191 	printf("Init Video as ");
192 	s = getenv("displaywidth");
193 	if (s != NULL)
194 		display_width = simple_strtoul(s, NULL, 10);
195 	else
196 		display_width = 256;
197 
198 	s = getenv("displayheight");
199 	if (s != NULL)
200 		display_height = simple_strtoul(s, NULL, 10);
201 	else
202 		display_height = 256;
203 
204 	printf("%lu x %lu pixel matrix\n", display_width, display_height);
205 
206 	MCFCCM_CCR &= ~MCFCCM_CCR_SZEN;
207 	MCFGPIO_PEPAR &= ~MCFGPIO_PEPAR_PEPA2;
208 
209 	vcxk_init(display_width, display_height);
210 
211 #ifdef CONFIG_SPLASH_SCREEN
212 	s = getenv("splashimage");
213 	if (s != NULL) {
214 		splash = simple_strtoul(s, NULL, 16);
215 		vcxk_acknowledge_wait();
216 		video_display_bitmap(splash, 0, 0);
217 	}
218 #endif
219 	return 0;
220 }
221 #endif
222 
223 /*---------------------------------------------------------------------------*/
224 
225 #ifdef CONFIG_VIDEO
226 int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
227 {
228 	int rcode = 0;
229 	ulong side;
230 	ulong bright;
231 
232 	switch (argc) {
233 	case 3:
234 		side = simple_strtoul(argv[1], NULL, 10);
235 		bright = simple_strtoul(argv[2], NULL, 10);
236 		if ((side >= 0) && (side <= 3) &&
237 			(bright >= 0) && (bright <= 1000)) {
238 			vcxk_setbrightness(side, bright);
239 			rcode = 0;
240 		} else {
241 			printf("parameters out of range\n");
242 			printf("Usage:\n%s\n", cmdtp->usage);
243 			rcode = 1;
244 		}
245 		break;
246 	default:
247 		printf("Usage:\n%s\n", cmdtp->usage);
248 		rcode = 1;
249 		break;
250 	}
251 	return rcode;
252 }
253 
254 /*---------------------------------------------------------------------------*/
255 
256 U_BOOT_CMD(
257 	bright,	3,	0,	do_brightness,
258 	"sets the display brightness\n",
259 	" <side> <0..1000>\n        side: 0/3=both; 1=first; 2=second\n"
260 );
261 
262 #endif
263 
264 /* EOF EB+MCF-EV123.c */
265