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1 /*
2  * (C) Copyright 2001-2004
3  * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23
24 #include <common.h>
25 #include <asm/processor.h>
26 #include <command.h>
27 #include <malloc.h>
28
29 /* ------------------------------------------------------------------------- */
30
31 #if 0
32 #define FPGA_DEBUG
33 #endif
34
35 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
36 extern void lxt971_no_sleep(void);
37
38 /* fpga configuration data - gzip compressed and generated by bin2c */
39 const unsigned char fpgadata[] =
40 {
41 #include "fpgadata.c"
42 };
43
44 /*
45  * include common fpga code (for esd boards)
46  */
47 #include "../common/fpga.c"
48
49
50 /* Prototypes */
51 int gunzip(void *, int, unsigned char *, unsigned long *);
52
53
54 /* logo bitmap data - gzip compressed and generated by bin2c */
55 unsigned char logo_bmp_320[] =
56 {
57 #include "logo_320_240_4bpp.c"
58 };
59
60 unsigned char logo_bmp_640[] =
61 {
62 #include "logo_640_480_24bpp.c"
63 };
64
65
66 /*
67  * include common lcd code (for esd boards)
68  */
69 #include "../common/lcd.c"
70
71 #include "../common/s1d13704_320_240_4bpp.h"
72 #include "../common/s1d13806_320_240_4bpp.h"
73 #include "../common/s1d13806_640_480_16bpp.h"
74
75
76 int board_early_init_f (void)
77 {
78         /*
79          * IRQ 0-15  405GP internally generated; active high; level sensitive
80          * IRQ 16    405GP internally generated; active low; level sensitive
81          * IRQ 17-24 RESERVED
82          * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
83          * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
84          * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
85          * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
86          * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
87          * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
88          * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
89          */
90         mtdcr(uicsr, 0xFFFFFFFF);       /* clear all ints */
91         mtdcr(uicer, 0x00000000);       /* disable all ints */
92         mtdcr(uiccr, 0x00000000);       /* set all to be non-critical*/
93         mtdcr(uicpr, 0xFFFFFFB5);       /* set int polarities */
94         mtdcr(uictr, 0x10000000);       /* set int trigger levels */
95         mtdcr(uicvcr, 0x00000001);      /* set vect base=0,INT0 highest priority*/
96         mtdcr(uicsr, 0xFFFFFFFF);       /* clear all ints */
97
98         /*
99          * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
100          */
101         mtebc (epcr, 0xa8400000); /* ebc always driven */
102
103         return 0;
104 }
105
106
107 int misc_init_f (void)
108 {
109         return 0;  /* dummy implementation */
110 }
111
112
113 int misc_init_r (void)
114 {
115         volatile unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4);
116         volatile unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4);
117         volatile unsigned short *lcd_contrast =
118                 (unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL + 4);
119         volatile unsigned short *lcd_backlight =
120                 (unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL + 6);
121         unsigned char *dst;
122         ulong len = sizeof(fpgadata);
123         int status;
124         int index;
125         int i;
126         char *str;
127
128         dst = malloc(CFG_FPGA_MAX_SIZE);
129         if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) {
130                 printf ("GUNZIP ERROR - must RESET board to recover\n");
131                 do_reset (NULL, 0, 0, NULL);
132         }
133
134         status = fpga_boot(dst, len);
135         if (status != 0) {
136                 printf("\nFPGA: Booting failed ");
137                 switch (status) {
138                 case ERROR_FPGA_PRG_INIT_LOW:
139                         printf("(Timeout: INIT not low after asserting PROGRAM*)\n ");
140                         break;
141                 case ERROR_FPGA_PRG_INIT_HIGH:
142                         printf("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
143                         break;
144                 case ERROR_FPGA_PRG_DONE:
145                         printf("(Timeout: DONE not high after programming FPGA)\n ");
146                         break;
147                 }
148
149                 /* display infos on fpgaimage */
150                 index = 15;
151                 for (i=0; i<4; i++) {
152                         len = dst[index];
153                         printf("FPGA: %s\n", &(dst[index+1]));
154                         index += len+3;
155                 }
156                 putc ('\n');
157                 /* delayed reboot */
158                 for (i=20; i>0; i--) {
159                         printf("Rebooting in %2d seconds \r",i);
160                         for (index=0;index<1000;index++)
161                                 udelay(1000);
162                 }
163                 putc ('\n');
164                 do_reset(NULL, 0, 0, NULL);
165         }
166
167         puts("FPGA:  ");
168
169         /* display infos on fpgaimage */
170         index = 15;
171         for (i=0; i<4; i++) {
172                 len = dst[index];
173                 printf("%s ", &(dst[index+1]));
174                 index += len+3;
175         }
176         putc ('\n');
177
178         free(dst);
179
180         /*
181          * Reset FPGA via FPGA_INIT pin
182          */
183         out32(GPIO0_TCR, in32(GPIO0_TCR) | FPGA_INIT); /* setup FPGA_INIT as output */
184         out32(GPIO0_OR, in32(GPIO0_OR) & ~FPGA_INIT);  /* reset low */
185         udelay(1000); /* wait 1ms */
186         out32(GPIO0_OR, in32(GPIO0_OR) | FPGA_INIT);   /* reset high */
187         udelay(1000); /* wait 1ms */
188
189         /*
190          * Reset external DUARTs
191          */
192         out32(GPIO0_OR, in32(GPIO0_OR) | CFG_DUART_RST); /* set reset to high */
193         udelay(10); /* wait 10us */
194         out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_DUART_RST); /* set reset to low */
195         udelay(1000); /* wait 1ms */
196
197         /*
198          * Set NAND-FLASH GPIO signals to default
199          */
200         out32(GPIO0_OR, in32(GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE));
201         out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CE);
202
203         /*
204          * Enable interrupts in exar duart mcr[3]
205          */
206         *duart0_mcr = 0x08;
207         *duart1_mcr = 0x08;
208
209         /*
210          * Init lcd interface and display logo
211          */
212         str = getenv("bd_type");
213         if (strcmp(str, "voh405_bw") == 0) {
214                 lcd_setup(0, 1);
215                 lcd_init((uchar *)CFG_LCD_SMALL_REG, (uchar *)CFG_LCD_SMALL_MEM,
216                          regs_13704_320_240_4bpp,
217                          sizeof(regs_13704_320_240_4bpp)/sizeof(regs_13704_320_240_4bpp[0]),
218                          logo_bmp_320, sizeof(logo_bmp_320));
219         } else if (strcmp(str, "voh405_bwbw") == 0) {
220                 lcd_setup(0, 1);
221                 lcd_init((uchar *)CFG_LCD_SMALL_REG, (uchar *)CFG_LCD_SMALL_MEM,
222                          regs_13704_320_240_4bpp,
223                          sizeof(regs_13704_320_240_4bpp)/sizeof(regs_13704_320_240_4bpp[0]),
224                          logo_bmp_320, sizeof(logo_bmp_320));
225                 lcd_setup(1, 1);
226                 lcd_init((uchar *)CFG_LCD_BIG_REG, (uchar *)CFG_LCD_BIG_MEM,
227                          regs_13806_320_240_4bpp,
228                          sizeof(regs_13806_320_240_4bpp)/sizeof(regs_13806_320_240_4bpp[0]),
229                          logo_bmp_320, sizeof(logo_bmp_320));
230         } else if (strcmp(str, "voh405_bwc") == 0) {
231                 lcd_setup(0, 1);
232                 lcd_init((uchar *)CFG_LCD_SMALL_REG, (uchar *)CFG_LCD_SMALL_MEM,
233                          regs_13704_320_240_4bpp,
234                          sizeof(regs_13704_320_240_4bpp)/sizeof(regs_13704_320_240_4bpp[0]),
235                          logo_bmp_320, sizeof(logo_bmp_320));
236                 lcd_setup(1, 0);
237                 lcd_init((uchar *)CFG_LCD_BIG_REG, (uchar *)CFG_LCD_BIG_MEM,
238                          regs_13806_640_480_16bpp,
239                          sizeof(regs_13806_640_480_16bpp)/sizeof(regs_13806_640_480_16bpp[0]),
240                          logo_bmp_640, sizeof(logo_bmp_640));
241         } else {
242                 printf("Unsupported bd_type defined (%s) -> No display configured!\n", str);
243                 return 0;
244         }
245
246         /*
247          * Set invert bit in small lcd controller
248          */
249         *(unsigned char *)(CFG_LCD_SMALL_REG + 2) |= 0x01;
250
251         /*
252          * Set default contrast voltage on epson vga controller
253          */
254         *lcd_contrast = 0x4646;
255
256         /*
257          * Enable backlight
258          */
259         *lcd_backlight = 0xffff;
260
261         return (0);
262 }
263
264
265 /*
266  * Check Board Identity:
267  */
268
269 int checkboard (void)
270 {
271         char str[64];
272         int i = getenv_r ("serial#", str, sizeof(str));
273
274         puts ("Board: ");
275
276         if (i == -1) {
277                 puts ("### No HW ID - assuming VOH405");
278         } else {
279                 puts(str);
280         }
281
282         if (getenv_r("bd_type", str, sizeof(str)) != -1) {
283                 printf(" (%s)", str);
284         } else {
285                 puts(" (Missing bd_type!)");
286         }
287
288         putc ('\n');
289
290         /*
291          * Disable sleep mode in LXT971
292          */
293         lxt971_no_sleep();
294
295         return 0;
296 }
297
298 /* ------------------------------------------------------------------------- */
299
300 long int initdram (int board_type)
301 {
302         unsigned long val;
303
304         mtdcr(memcfga, mem_mb0cf);
305         val = mfdcr(memcfgd);
306
307 #if 0
308         printf("\nmb0cf=%x\n", val); /* test-only */
309         printf("strap=%x\n", mfdcr(strap)); /* test-only */
310 #endif
311
312         return (4*1024*1024 << ((val & 0x000e0000) >> 17));
313 }
314
315 /* ------------------------------------------------------------------------- */
316
317 int testdram (void)
318 {
319         /* TODO: XXX XXX XXX */
320         printf ("test: 16 MB - ok\n");
321
322         return (0);
323 }
324
325 /* ------------------------------------------------------------------------- */
326
327 #ifdef CONFIG_IDE_RESET
328 void ide_set_reset(int on)
329 {
330         volatile unsigned short *fpga_mode =
331                 (unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL);
332
333         /*
334          * Assert or deassert CompactFlash Reset Pin
335          */
336         if (on) {               /* assert RESET */
337                 *fpga_mode &= ~(CFG_FPGA_CTRL_CF_RESET);
338         } else {                /* release RESET */
339                 *fpga_mode |= CFG_FPGA_CTRL_CF_RESET;
340         }
341 }
342 #endif /* CONFIG_IDE_RESET */
343
344
345 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
346 #include <linux/mtd/nand_legacy.h>
347 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
348
349 void nand_init(void)
350 {
351         nand_probe(CFG_NAND_BASE);
352         if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
353                 print_size(nand_dev_desc[0].totlen, "\n");
354         }
355 }
356 #endif