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git.ipfire.org Git - thirdparty/u-boot.git/blob - board/BuS/eb_cpu5282/eb_cpu5282.c
2 * (C) Copyright 2005-2009
3 * BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de>
5 * (C) Copyright 2000-2003
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 * SPDX-License-Identifier: GPL-2.0+
13 #include "asm/m5282.h"
14 #include <bmp_layout.h>
15 #include <status_led.h>
18 /*---------------------------------------------------------------------------*/
20 DECLARE_GLOBAL_DATA_PTR
;
23 unsigned long display_width
;
24 unsigned long display_height
;
27 /*---------------------------------------------------------------------------*/
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");
38 phys_size_t
initdram (int board_type
)
43 MCFSDRAMC_DCR
= MCFSDRAMC_DCR_RTIM_6
|
44 MCFSDRAMC_DCR_RC((15 * CONFIG_SYS_CLK
/ 1000000) >> 4);
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) |
52 MCFSDRAMC_DMR0
= MCFSDRAMC_DMR_BAM_16M
| MCFSDRAMC_DMR_V
;
55 MCFSDRAMC_DACR0
|= MCFSDRAMC_DACR_IP
;
57 for (i
= 0; i
< 10; i
++)
60 *(unsigned long *)(CONFIG_SYS_SDRAM_BASE0
) = 0xA5A5A5A5;
62 MCFSDRAMC_DACR0
|= MCFSDRAMC_DACR_RE
;
65 for (i
= 0; i
< 2000; i
++)
68 MCFSDRAMC_DACR0
|= MCFSDRAMC_DACR_IMRS
;
70 /* write SDRAM mode register */
71 *(unsigned long *)(CONFIG_SYS_SDRAM_BASE0
+ 0x80440) = 0xA5A5A5A5;
73 size
+= CONFIG_SYS_SDRAM_SIZE0
* 1024 * 1024;
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
;
81 MCFSDRAMC_DMR1
= MCFSDRAMC_DMR_BAM_16M
| MCFSDRAMC_DMR_V
;
83 MCFSDRAMC_DACR1
|= MCFSDRAMC_DACR_IP
;
85 *(unsigned short *) (CONFIG_SYS_SDRAM_BASE1
) = 0xA5A5;
86 MCFSDRAMC_DACR1
|= MCFSDRAMC_DACR_RE
;
88 for (i
= 0; i
< 2000; i
++)
91 MCFSDRAMC_DACR1
|= MCFSDRAMC_DACR_IMRS
;
92 *(unsigned int *) (CONFIG_SYS_SDRAM_BASE1
+ 0x220) = 0xA5A5;
93 size
+= CONFIG_SYS_SDRAM_SIZE1
* 1024 * 1024;
98 #if defined(CONFIG_SYS_DRAM_TEST)
101 uint
*pstart
= (uint
*) CONFIG_SYS_MEMTEST_START
;
102 uint
*pend
= (uint
*) CONFIG_SYS_MEMTEST_END
;
105 printf("SDRAM test phase 1:\n");
106 for (p
= pstart
; p
< pend
; p
++)
109 for (p
= pstart
; p
< pend
; p
++) {
110 if (*p
!= 0xaaaaaaaa) {
111 printf ("SDRAM test fails at: %08x\n", (uint
) p
);
116 printf("SDRAM test phase 2:\n");
117 for (p
= pstart
; p
< pend
; p
++)
120 for (p
= pstart
; p
< pend
; p
++) {
121 if (*p
!= 0x55555555) {
122 printf ("SDRAM test fails at: %08x\n", (uint
) p
);
127 printf("SDRAM test passed.\n");
132 #if defined(CONFIG_HW_WATCHDOG)
134 void hw_watchdog_init(void)
140 s
= getenv("watchdog");
142 if ((strncmp(s
, "off", 3) == 0) || (strncmp(s
, "0", 1) == 0))
145 MCFGPTA_GPTDDR
|= (1<<2);
147 MCFGPTA_GPTDDR
&= ~(1<<2);
150 void hw_watchdog_reset(void)
152 MCFGPTA_GPTPORT
^= (1<<2);
156 int misc_init_r(void)
158 #ifdef CONFIG_HW_WATCHDOG
164 void __led_toggle(led_id_t mask
)
166 MCFGPTA_GPTPORT
^= (1 << 3);
169 void __led_init(led_id_t mask
, int state
)
171 __led_set(mask
, state
);
172 MCFGPTA_GPTDDR
|= (1 << 3);
175 void __led_set(led_id_t mask
, int state
)
177 if (state
== STATUS_LED_ON
)
178 MCFGPTA_GPTPORT
|= (1 << 3);
180 MCFGPTA_GPTPORT
&= ~(1 << 3);
183 #if defined(CONFIG_VIDEO)
185 int drv_video_init(void)
188 #ifdef CONFIG_SPLASH_SCREEN
189 unsigned long splash
;
191 printf("Init Video as ");
192 s
= getenv("displaywidth");
194 display_width
= simple_strtoul(s
, NULL
, 10);
198 s
= getenv("displayheight");
200 display_height
= simple_strtoul(s
, NULL
, 10);
202 display_height
= 256;
204 printf("%lu x %lu pixel matrix\n", display_width
, display_height
);
206 MCFCCM_CCR
&= ~MCFCCM_CCR_SZEN
;
207 MCFGPIO_PEPAR
&= ~MCFGPIO_PEPAR_PEPA2
;
209 vcxk_init(display_width
, display_height
);
211 #ifdef CONFIG_SPLASH_SCREEN
212 s
= getenv("splashimage");
214 splash
= simple_strtoul(s
, NULL
, 16);
215 vcxk_acknowledge_wait();
216 video_display_bitmap(splash
, 0, 0);
223 /*---------------------------------------------------------------------------*/
226 int do_brightness(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
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
);
241 printf("parameters out of range\n");
242 printf("Usage:\n%s\n", cmdtp
->usage
);
247 printf("Usage:\n%s\n", cmdtp
->usage
);
254 /*---------------------------------------------------------------------------*/
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"
264 /* EOF EB+MCF-EV123.c */