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 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include "asm/m5282.h"
30 #include <bmp_layout.h>
31 #include <status_led.h>
34 /*---------------------------------------------------------------------------*/
36 DECLARE_GLOBAL_DATA_PTR;
39 unsigned long display_width;
40 unsigned long display_height;
43 /*---------------------------------------------------------------------------*/
47 puts("Board: EB+CPU5282 (BuS Elektronik GmbH & Co. KG)\n");
48 #if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
49 puts(" Boot from Internal FLASH\n");
54 phys_size_t initdram (int board_type)
59 MCFSDRAMC_DCR = MCFSDRAMC_DCR_RTIM_6 |
60 MCFSDRAMC_DCR_RC((15 * CONFIG_SYS_CLK / 1000000) >> 4);
62 #ifdef CONFIG_SYS_SDRAM_BASE0
63 MCFSDRAMC_DACR0 = MCFSDRAMC_DACR_BASE(CONFIG_SYS_SDRAM_BASE0)|
64 MCFSDRAMC_DACR_CASL(1) | MCFSDRAMC_DACR_CBM(3) |
68 MCFSDRAMC_DMR0 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
71 MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IP;
73 for (i = 0; i < 10; i++)
76 *(unsigned long *)(CONFIG_SYS_SDRAM_BASE0) = 0xA5A5A5A5;
78 MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_RE;
81 for (i = 0; i < 2000; i++)
84 MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IMRS;
86 /* write SDRAM mode register */
87 *(unsigned long *)(CONFIG_SYS_SDRAM_BASE0 + 0x80440) = 0xA5A5A5A5;
89 size += CONFIG_SYS_SDRAM_SIZE0 * 1024 * 1024;
91 #ifdef CONFIG_SYS_SDRAM_BASE1xx
92 MCFSDRAMC_DACR1 = MCFSDRAMC_DACR_BASE (CONFIG_SYS_SDRAM_BASE1)
93 | MCFSDRAMC_DACR_CASL (1)
94 | MCFSDRAMC_DACR_CBM (3)
95 | MCFSDRAMC_DACR_PS_16;
97 MCFSDRAMC_DMR1 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
99 MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IP;
101 *(unsigned short *) (CONFIG_SYS_SDRAM_BASE1) = 0xA5A5;
102 MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_RE;
104 for (i = 0; i < 2000; i++)
107 MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IMRS;
108 *(unsigned int *) (CONFIG_SYS_SDRAM_BASE1 + 0x220) = 0xA5A5;
109 size += CONFIG_SYS_SDRAM_SIZE1 * 1024 * 1024;
114 #if defined(CONFIG_SYS_DRAM_TEST)
117 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
118 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
121 printf("SDRAM test phase 1:\n");
122 for (p = pstart; p < pend; p++)
125 for (p = pstart; p < pend; p++) {
126 if (*p != 0xaaaaaaaa) {
127 printf ("SDRAM test fails at: %08x\n", (uint) p);
132 printf("SDRAM test phase 2:\n");
133 for (p = pstart; p < pend; p++)
136 for (p = pstart; p < pend; p++) {
137 if (*p != 0x55555555) {
138 printf ("SDRAM test fails at: %08x\n", (uint) p);
143 printf("SDRAM test passed.\n");
148 #if defined(CONFIG_HW_WATCHDOG)
150 void hw_watchdog_init(void)
156 s = getenv("watchdog");
158 if ((strncmp(s, "off", 3) == 0) || (strncmp(s, "0", 1) == 0))
161 MCFGPTA_GPTDDR |= (1<<2);
163 MCFGPTA_GPTDDR &= ~(1<<2);
166 void hw_watchdog_reset(void)
168 MCFGPTA_GPTPORT ^= (1<<2);
172 int misc_init_r(void)
174 #ifdef CONFIG_HW_WATCHDOG
180 void __led_toggle(led_id_t mask)
182 MCFGPTA_GPTPORT ^= (1 << 3);
185 void __led_init(led_id_t mask, int state)
187 __led_set(mask, state);
188 MCFGPTA_GPTDDR |= (1 << 3);
191 void __led_set(led_id_t mask, int state)
193 if (state == STATUS_LED_ON)
194 MCFGPTA_GPTPORT |= (1 << 3);
196 MCFGPTA_GPTPORT &= ~(1 << 3);
199 #if defined(CONFIG_VIDEO)
201 int drv_video_init(void)
204 #ifdef CONFIG_SPLASH_SCREEN
205 unsigned long splash;
207 printf("Init Video as ");
208 s = getenv("displaywidth");
210 display_width = simple_strtoul(s, NULL, 10);
214 s = getenv("displayheight");
216 display_height = simple_strtoul(s, NULL, 10);
218 display_height = 256;
220 printf("%lu x %lu pixel matrix\n", display_width, display_height);
222 MCFCCM_CCR &= ~MCFCCM_CCR_SZEN;
223 MCFGPIO_PEPAR &= ~MCFGPIO_PEPAR_PEPA2;
225 vcxk_init(display_width, display_height);
227 #ifdef CONFIG_SPLASH_SCREEN
228 s = getenv("splashimage");
230 splash = simple_strtoul(s, NULL, 16);
231 vcxk_acknowledge_wait();
232 video_display_bitmap(splash, 0, 0);
239 /*---------------------------------------------------------------------------*/
242 int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
250 side = simple_strtoul(argv[1], NULL, 10);
251 bright = simple_strtoul(argv[2], NULL, 10);
252 if ((side >= 0) && (side <= 3) &&
253 (bright >= 0) && (bright <= 1000)) {
254 vcxk_setbrightness(side, bright);
257 printf("parameters out of range\n");
258 printf("Usage:\n%s\n", cmdtp->usage);
263 printf("Usage:\n%s\n", cmdtp->usage);
270 /*---------------------------------------------------------------------------*/
273 bright, 3, 0, do_brightness,
274 "sets the display brightness\n",
275 " <side> <0..1000>\n side: 0/3=both; 1=first; 2=second\n"
280 /* EOF EB+MCF-EV123.c */