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6cb142fa WD |
1 | /* |
2 | * U-boot - stamp.c STAMP board specific routines | |
3 | * | |
4 | * Copyright (c) 2005 blackfin.uclinux.org | |
5 | * | |
6 | * (C) Copyright 2000-2004 | |
7 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
8 | * | |
9 | * See file CREDITS for list of people who contributed to this | |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
28 | #include <common.h> | |
29 | #include <asm/mem_init.h> | |
30 | #include "stamp.h" | |
31 | ||
32 | #define STATUS_LED_OFF 0 | |
8e7b703a | 33 | #define STATUS_LED_ON 1 |
6cb142fa WD |
34 | |
35 | #ifdef CONFIG_SHOW_BOOT_PROGRESS | |
36 | # define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg) | |
37 | #else | |
8e7b703a | 38 | # define SHOW_BOOT_PROGRESS(arg) |
6cb142fa WD |
39 | #endif |
40 | ||
8e7b703a | 41 | int checkboard (void) |
6cb142fa | 42 | { |
8e7b703a WD |
43 | printf ("CPU: ADSP BF533 Rev.: 0.%d\n", *pCHIPID >> 28); |
44 | printf ("Board: ADI BF533 Stamp board\n"); | |
45 | printf (" Support: http://blackfin.uclinux.org/\n"); | |
46 | printf (" Richard Klingler <richard@uclinux.net>\n"); | |
6cb142fa WD |
47 | return 0; |
48 | } | |
49 | ||
8e7b703a | 50 | long int initdram (int board_type) |
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51 | { |
52 | DECLARE_GLOBAL_DATA_PTR; | |
53 | #ifdef DEBUG | |
8e7b703a WD |
54 | printf ("SDRAM attributes:\n"); |
55 | printf (" tRCD:%d Cycles; tRP:%d Cycles; tRAS:%d Cycles; tWR:%d Cycles; " | |
56 | "CAS Latency:%d cycles\n", | |
57 | (SDRAM_tRCD >> 15), | |
58 | (SDRAM_tRP >> 11), | |
59 | (SDRAM_tRAS >> 6), | |
60 | (SDRAM_tWR >> 19), | |
61 | (SDRAM_CL >> 2)); | |
62 | printf ("SDRAM Begin: 0x%x\n", CFG_SDRAM_BASE); | |
63 | printf ("Bank size = %d MB\n", 128); | |
6cb142fa WD |
64 | #endif |
65 | gd->bd->bi_memstart = CFG_SDRAM_BASE; | |
66 | gd->bd->bi_memsize = CFG_MAX_RAM_SIZE; | |
67 | return (gd->bd->bi_memsize); | |
68 | } | |
69 | ||
8e7b703a | 70 | void swap_to (int device_id) |
6cb142fa WD |
71 | { |
72 | ||
8e7b703a | 73 | if (device_id == ETHERNET) { |
6cb142fa | 74 | *pFIO_DIR = PF0; |
8e7b703a | 75 | asm ("ssync;"); |
6cb142fa | 76 | *pFIO_FLAG_S = PF0; |
8e7b703a WD |
77 | asm ("ssync;"); |
78 | } else if (device_id == FLASH) { | |
6cb142fa | 79 | *pFIO_DIR = (PF4 | PF3 | PF2 | PF1 | PF0); |
8e7b703a | 80 | *pFIO_FLAG_S = (PF4 | PF3 | PF2); |
6cb142fa WD |
81 | *pFIO_MASKA_D = (PF8 | PF6 | PF5); |
82 | *pFIO_MASKB_D = (PF7); | |
8e7b703a | 83 | *pFIO_POLAR = (PF8 | PF6 | PF5); |
6cb142fa WD |
84 | *pFIO_EDGE = (PF8 | PF7 | PF6 | PF5); |
85 | *pFIO_INEN = (PF8 | PF7 | PF6 | PF5); | |
8e7b703a WD |
86 | *pFIO_FLAG_D = (PF4 | PF3 | PF2); |
87 | asm ("ssync;"); | |
88 | } else { | |
89 | printf ("Unknown bank to switch\n"); | |
6cb142fa | 90 | } |
8e7b703a | 91 | |
6cb142fa WD |
92 | return; |
93 | } | |
94 | ||
95 | #if defined(CONFIG_MISC_INIT_R) | |
96 | /* miscellaneous platform dependent initialisations */ | |
8e7b703a | 97 | int misc_init_r (void) |
6cb142fa WD |
98 | { |
99 | int i; | |
100 | int cf_stat = 0; | |
101 | ||
102 | /* Check whether CF card is inserted */ | |
103 | *pFIO_EDGE = FIO_EDGE_CF_BITS; | |
104 | *pFIO_POLAR = FIO_POLAR_CF_BITS; | |
8e7b703a WD |
105 | for (i = 0; i < 0x300; i++) |
106 | asm ("nop;"); | |
107 | ||
108 | if ((*pFIO_FLAG_S) & CF_STAT_BITS) { | |
6cb142fa | 109 | cf_stat = 0; |
8e7b703a | 110 | } else { |
6cb142fa WD |
111 | cf_stat = 1; |
112 | } | |
113 | ||
8e7b703a | 114 | *pFIO_EDGE = FIO_EDGE_BITS; |
6cb142fa | 115 | *pFIO_POLAR = FIO_POLAR_BITS; |
6cb142fa | 116 | |
8e7b703a WD |
117 | |
118 | if (cf_stat) { | |
119 | printf ("Booting from COMPACT flash\n"); | |
6cb142fa WD |
120 | |
121 | /* Set cycle time for CF */ | |
122 | *(volatile unsigned long *) ambctl1 = CF_AMBCTL1VAL; | |
123 | ||
8e7b703a WD |
124 | for (i = 0; i < 0x1000; i++) |
125 | asm ("nop;"); | |
126 | for (i = 0; i < 0x1000; i++) | |
127 | asm ("nop;"); | |
128 | for (i = 0; i < 0x1000; i++) | |
129 | asm ("nop;"); | |
6cb142fa | 130 | |
8e7b703a WD |
131 | serial_setbrg (); |
132 | ide_init (); | |
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133 | |
134 | setenv ("bootargs", ""); | |
8e7b703a WD |
135 | setenv ("bootcmd", |
136 | "fatload ide 0:1 0x1000000 uImage-stamp;bootm 0x1000000;bootm 0x20100000"); | |
137 | } else { | |
6cb142fa WD |
138 | printf ("Booting from FLASH\n"); |
139 | } | |
140 | ||
141 | return 1; | |
142 | } | |
143 | #endif | |
144 | ||
145 | #ifdef CONFIG_STAMP_CF | |
146 | ||
8e7b703a | 147 | void cf_outb (unsigned char val, volatile unsigned char *addr) |
6cb142fa | 148 | { |
8e7b703a | 149 | /* |
6cb142fa | 150 | * Set PF1 PF0 respectively to 0 1 to divert address |
8e7b703a | 151 | * to the expansion memory banks |
6cb142fa WD |
152 | */ |
153 | *pFIO_FLAG_S = CF_PF0; | |
154 | *pFIO_FLAG_C = CF_PF1; | |
8e7b703a | 155 | asm ("ssync;"); |
6cb142fa WD |
156 | |
157 | *(addr) = val; | |
8e7b703a | 158 | asm ("ssync;"); |
6cb142fa | 159 | |
8e7b703a | 160 | /* Setback PF1 PF0 to 0 0 to address external |
6cb142fa WD |
161 | * memory banks */ |
162 | *(volatile unsigned short *) pFIO_FLAG_C = CF_PF1_PF0; | |
8e7b703a | 163 | asm ("ssync;"); |
6cb142fa WD |
164 | } |
165 | ||
8e7b703a | 166 | unsigned char cf_inb (volatile unsigned char *addr) |
6cb142fa WD |
167 | { |
168 | volatile unsigned char c; | |
169 | ||
170 | *pFIO_FLAG_S = CF_PF0; | |
171 | *pFIO_FLAG_C = CF_PF1; | |
8e7b703a | 172 | asm ("ssync;"); |
6cb142fa WD |
173 | |
174 | c = *(addr); | |
8e7b703a | 175 | asm ("ssync;"); |
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176 | |
177 | *pFIO_FLAG_C = CF_PF1_PF0; | |
8e7b703a | 178 | asm ("ssync;"); |
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179 | |
180 | return c; | |
181 | } | |
182 | ||
8e7b703a | 183 | void cf_insw (unsigned short *sect_buf, unsigned short *addr, int words) |
6cb142fa WD |
184 | { |
185 | int i; | |
186 | ||
187 | *pFIO_FLAG_S = CF_PF0; | |
188 | *pFIO_FLAG_C = CF_PF1; | |
8e7b703a | 189 | asm ("ssync;"); |
6cb142fa | 190 | |
8e7b703a | 191 | for (i = 0; i < words; i++) { |
6cb142fa | 192 | *(sect_buf + i) = *(addr); |
8e7b703a | 193 | asm ("ssync;"); |
6cb142fa WD |
194 | } |
195 | ||
196 | *pFIO_FLAG_C = CF_PF1_PF0; | |
8e7b703a | 197 | asm ("ssync;"); |
6cb142fa WD |
198 | } |
199 | ||
8e7b703a | 200 | void cf_outsw (unsigned short *addr, unsigned short *sect_buf, int words) |
6cb142fa WD |
201 | { |
202 | int i; | |
203 | ||
204 | *pFIO_FLAG_S = CF_PF0; | |
205 | *pFIO_FLAG_C = CF_PF1; | |
8e7b703a | 206 | asm ("ssync;"); |
6cb142fa | 207 | |
8e7b703a | 208 | for (i = 0; i < words; i++) { |
6cb142fa | 209 | *(addr) = *(sect_buf + i); |
8e7b703a | 210 | asm ("ssync;"); |
6cb142fa WD |
211 | } |
212 | ||
213 | *pFIO_FLAG_C = CF_PF1_PF0; | |
8e7b703a | 214 | asm ("ssync;"); |
6cb142fa WD |
215 | } |
216 | #endif | |
217 | ||
8e7b703a | 218 | void stamp_led_set (int LED1, int LED2, int LED3) |
6cb142fa | 219 | { |
8e7b703a WD |
220 | *pFIO_INEN &= ~(PF2 | PF3 | PF4); |
221 | *pFIO_DIR |= (PF2 | PF3 | PF4); | |
222 | ||
223 | if (LED1 == STATUS_LED_OFF) | |
6cb142fa WD |
224 | *pFIO_FLAG_S = PF2; |
225 | else | |
226 | *pFIO_FLAG_C = PF2; | |
8e7b703a | 227 | if (LED2 == STATUS_LED_OFF) |
6cb142fa WD |
228 | *pFIO_FLAG_S = PF3; |
229 | else | |
230 | *pFIO_FLAG_C = PF3; | |
8e7b703a | 231 | if (LED3 == STATUS_LED_OFF) |
6cb142fa WD |
232 | *pFIO_FLAG_S = PF4; |
233 | else | |
234 | *pFIO_FLAG_C = PF4; | |
8e7b703a | 235 | asm ("ssync;"); |
6cb142fa WD |
236 | } |
237 | ||
8e7b703a | 238 | void show_boot_progress (int status) |
6cb142fa | 239 | { |
8e7b703a WD |
240 | switch (status) { |
241 | case 1: | |
242 | stamp_led_set (STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_ON); | |
243 | break; | |
244 | case 2: | |
245 | stamp_led_set (STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_OFF); | |
246 | break; | |
247 | case 3: | |
248 | stamp_led_set (STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_ON); | |
249 | break; | |
250 | case 4: | |
251 | stamp_led_set (STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_OFF); | |
252 | break; | |
253 | case 5: | |
254 | case 6: | |
255 | stamp_led_set (STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_ON); | |
256 | break; | |
257 | case 7: | |
258 | case 8: | |
259 | stamp_led_set (STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_OFF); | |
260 | break; | |
261 | case 9: | |
262 | case 10: | |
263 | case 11: | |
264 | case 12: | |
265 | case 13: | |
266 | case 14: | |
267 | case 15: | |
268 | stamp_led_set (STATUS_LED_OFF, STATUS_LED_OFF, | |
269 | STATUS_LED_OFF); | |
270 | break; | |
271 | default: | |
272 | stamp_led_set (STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_ON); | |
273 | break; | |
6cb142fa WD |
274 | } |
275 | } |