blob: af035976ff0a307d81e4d69fe3c559b92e2a1067 [file] [log] [blame]
Aubrey.Li3f0606a2007-03-09 13:38:44 +08001/*
2 * U-boot - stamp.c STAMP board specific routines
3 *
Aubrey Li155fd762007-04-05 18:31:18 +08004 * Copyright (c) 2005-2007 Analog Devices Inc.
Aubrey.Li3f0606a2007-03-09 13:38:44 +08005 *
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
Aubrey Li155fd762007-04-05 18:31:18 +080024 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
25 * MA 02110-1301 USA
Aubrey.Li3f0606a2007-03-09 13:38:44 +080026 */
27
28#include <common.h>
29#include <asm/mem_init.h>
Aubrey Li8440bb12007-03-12 00:25:14 +080030#include <asm/io.h>
Aubrey.Li3f0606a2007-03-09 13:38:44 +080031#include "bf533-stamp.h"
32
Wolfgang Denk1218abf2007-09-15 20:48:41 +020033DECLARE_GLOBAL_DATA_PTR;
34
Aubrey.Li3f0606a2007-03-09 13:38:44 +080035#define STATUS_LED_OFF 0
36#define STATUS_LED_ON 1
37
38#ifdef CONFIG_SHOW_BOOT_PROGRESS
39# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
40#else
41# define SHOW_BOOT_PROGRESS(arg)
42#endif
43
44int checkboard(void)
45{
46#if (BFIN_CPU == ADSP_BF531)
47 printf("CPU: ADSP BF531 Rev.: 0.%d\n", *pCHIPID >> 28);
48#elif (BFIN_CPU == ADSP_BF532)
49 printf("CPU: ADSP BF532 Rev.: 0.%d\n", *pCHIPID >> 28);
50#else
51 printf("CPU: ADSP BF533 Rev.: 0.%d\n", *pCHIPID >> 28);
52#endif
53 printf("Board: ADI BF533 Stamp board\n");
54 printf(" Support: http://blackfin.uclinux.org/\n");
55 return 0;
56}
57
58long int initdram(int board_type)
59{
Aubrey.Li3f0606a2007-03-09 13:38:44 +080060#ifdef DEBUG
61 printf("SDRAM attributes:\n");
62 printf
63 (" tRCD:%d Cycles; tRP:%d Cycles; tRAS:%d Cycles; tWR:%d Cycles; "
64 "CAS Latency:%d cycles\n", (SDRAM_tRCD >> 15), (SDRAM_tRP >> 11),
65 (SDRAM_tRAS >> 6), (SDRAM_tWR >> 19), (SDRAM_CL >> 2));
66 printf("SDRAM Begin: 0x%x\n", CFG_SDRAM_BASE);
67 printf("Bank size = %d MB\n", 128);
68#endif
69 gd->bd->bi_memstart = CFG_SDRAM_BASE;
70 gd->bd->bi_memsize = CFG_MAX_RAM_SIZE;
71 return (gd->bd->bi_memsize);
72}
73
74void swap_to(int device_id)
75{
76
77 if (device_id == ETHERNET) {
78 *pFIO_DIR = PF0;
Mike Frysingerd4d77302008-02-04 19:26:55 -050079 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +080080 *pFIO_FLAG_S = PF0;
Mike Frysingerd4d77302008-02-04 19:26:55 -050081 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +080082 } else if (device_id == FLASH) {
83 *pFIO_DIR = (PF4 | PF3 | PF2 | PF1 | PF0);
84 *pFIO_FLAG_S = (PF4 | PF3 | PF2);
85 *pFIO_MASKA_D = (PF8 | PF6 | PF5);
86 *pFIO_MASKB_D = (PF7);
87 *pFIO_POLAR = (PF8 | PF6 | PF5);
88 *pFIO_EDGE = (PF8 | PF7 | PF6 | PF5);
89 *pFIO_INEN = (PF8 | PF7 | PF6 | PF5);
90 *pFIO_FLAG_D = (PF4 | PF3 | PF2);
Mike Frysingerd4d77302008-02-04 19:26:55 -050091 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +080092 } else {
93 printf("Unknown bank to switch\n");
94 }
95
96 return;
97}
98
99#if defined(CONFIG_MISC_INIT_R)
100/* miscellaneous platform dependent initialisations */
101int misc_init_r(void)
102{
103 int i;
104 int cf_stat = 0;
105
106 /* Check whether CF card is inserted */
107 *pFIO_EDGE = FIO_EDGE_CF_BITS;
108 *pFIO_POLAR = FIO_POLAR_CF_BITS;
109 for (i = 0; i < 0x300; i++)
110 asm("nop;");
111
112 if ((*pFIO_FLAG_S) & CF_STAT_BITS) {
113 cf_stat = 0;
114 } else {
115 cf_stat = 1;
116 }
117
118 *pFIO_EDGE = FIO_EDGE_BITS;
119 *pFIO_POLAR = FIO_POLAR_BITS;
120
121 if (cf_stat) {
122 printf("Booting from COMPACT flash\n");
123
124 /* Set cycle time for CF */
125 *(volatile unsigned long *)ambctl1 = CF_AMBCTL1VAL;
126
127 for (i = 0; i < 0x1000; i++)
128 asm("nop;");
129 for (i = 0; i < 0x1000; i++)
130 asm("nop;");
131 for (i = 0; i < 0x1000; i++)
132 asm("nop;");
133
134 serial_setbrg();
135 ide_init();
136
137 setenv("bootargs", "");
138 setenv("bootcmd",
139 "fatload ide 0:1 0x1000000 uImage-stamp;bootm 0x1000000;bootm 0x20100000");
140 } else {
141 printf("Booting from FLASH\n");
142 }
143
144 return 0;
145}
146#endif
147
148#ifdef CONFIG_STAMP_CF
149
150void cf_outb(unsigned char val, volatile unsigned char *addr)
151{
152 /*
153 * Set PF1 PF0 respectively to 0 1 to divert address
154 * to the expansion memory banks
155 */
156 *pFIO_FLAG_S = CF_PF0;
157 *pFIO_FLAG_C = CF_PF1;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500158 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800159
160 *(addr) = val;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500161 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800162
163 /* Setback PF1 PF0 to 0 0 to address external
164 * memory banks */
165 *(volatile unsigned short *)pFIO_FLAG_C = CF_PF1_PF0;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500166 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800167}
168
169unsigned char cf_inb(volatile unsigned char *addr)
170{
171 volatile unsigned char c;
172
173 *pFIO_FLAG_S = CF_PF0;
174 *pFIO_FLAG_C = CF_PF1;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500175 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800176
177 c = *(addr);
Mike Frysingerd4d77302008-02-04 19:26:55 -0500178 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800179
180 *pFIO_FLAG_C = CF_PF1_PF0;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500181 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800182
183 return c;
184}
185
186void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
187{
188 int i;
189
190 *pFIO_FLAG_S = CF_PF0;
191 *pFIO_FLAG_C = CF_PF1;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500192 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800193
194 for (i = 0; i < words; i++) {
195 *(sect_buf + i) = *(addr);
Mike Frysingerd4d77302008-02-04 19:26:55 -0500196 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800197 }
198
199 *pFIO_FLAG_C = CF_PF1_PF0;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500200 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800201}
202
203void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
204{
205 int i;
206
207 *pFIO_FLAG_S = CF_PF0;
208 *pFIO_FLAG_C = CF_PF1;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500209 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800210
211 for (i = 0; i < words; i++) {
212 *(addr) = *(sect_buf + i);
Mike Frysingerd4d77302008-02-04 19:26:55 -0500213 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800214 }
215
216 *pFIO_FLAG_C = CF_PF1_PF0;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500217 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800218}
219#endif
220
221void stamp_led_set(int LED1, int LED2, int LED3)
222{
223 *pFIO_INEN &= ~(PF2 | PF3 | PF4);
224 *pFIO_DIR |= (PF2 | PF3 | PF4);
225
226 if (LED1 == STATUS_LED_OFF)
227 *pFIO_FLAG_S = PF2;
228 else
229 *pFIO_FLAG_C = PF2;
230 if (LED2 == STATUS_LED_OFF)
231 *pFIO_FLAG_S = PF3;
232 else
233 *pFIO_FLAG_C = PF3;
234 if (LED3 == STATUS_LED_OFF)
235 *pFIO_FLAG_S = PF4;
236 else
237 *pFIO_FLAG_C = PF4;
Mike Frysingerd4d77302008-02-04 19:26:55 -0500238 SSYNC();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800239}
240
241void show_boot_progress(int status)
242{
243 switch (status) {
244 case 1:
245 stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_ON);
246 break;
247 case 2:
248 stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_OFF);
249 break;
250 case 3:
251 stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_ON);
252 break;
253 case 4:
254 stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_OFF);
255 break;
256 case 5:
257 case 6:
258 stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_ON);
259 break;
260 case 7:
261 case 8:
262 stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_OFF);
263 break;
264 case 9:
265 case 10:
266 case 11:
267 case 12:
268 case 13:
269 case 14:
270 case 15:
271 stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_OFF);
272 break;
273 default:
274 stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_ON);
275 break;
276 }
277}