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Stefan Roese779e9752007-08-14 14:44:41 +02001/*
2 * (C) Copyright 2007
3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
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 <command.h>
26#include <malloc.h>
27#include <environment.h>
28#include <logbuff.h>
29#include <post.h>
30
31#include <asm/processor.h>
32#include <asm/io.h>
33#include <asm/gpio.h>
34
35DECLARE_GLOBAL_DATA_PTR;
36
37#define REBOOT_MAGIC 0x07081967
38#define REBOOT_NOP 0x00000000
39#define REBOOT_DO_POST 0x00000001
40
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020041extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
Stefan Roese779e9752007-08-14 14:44:41 +020042extern env_t *env_ptr;
43extern uchar default_environment[];
44
45ulong flash_get_size(ulong base, int banknum);
46void env_crc_update(void);
47int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
48
49static u32 start_time;
50
51int board_early_init_f(void)
52{
53 mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
54 mtdcr(uicer, 0x00000000); /* disable all ints */
55 mtdcr(uiccr, 0x00000000);
56 mtdcr(uicpr, 0xFFFF7F00); /* set int polarities */
57 mtdcr(uictr, 0x00000000); /* set int trigger levels */
58 mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
59 mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */
60
61 /*
62 * Configure CPC0_PCI to enable PerWE as output
63 */
64 mtdcr(cpc0_pci, CPC0_PCI_SPE);
65
66 return 0;
67}
68
69int misc_init_r(void)
70{
71 u32 pbcr;
72 int size_val = 0;
73 u32 post_magic;
74 u32 post_val;
75
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020076 post_magic = in_be32((void *)CONFIG_SYS_POST_MAGIC);
77 post_val = in_be32((void *)CONFIG_SYS_POST_VAL);
Stefan Roese779e9752007-08-14 14:44:41 +020078 if ((post_magic == REBOOT_MAGIC) && (post_val == REBOOT_DO_POST)) {
79 /*
80 * Set special bootline bootparameter to pass this POST boot
81 * mode to Linux to reset the username/password
82 */
83 setenv("addmisc", "setenv bootargs \\${bootargs} factory_reset=yes");
84
85 /*
86 * Normally don't run POST tests, only when enabled
87 * via the sw-reset button. So disable further tests
88 * upon next bootup here.
89 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020090 out_be32((void *)CONFIG_SYS_POST_VAL, REBOOT_NOP);
Stefan Roese779e9752007-08-14 14:44:41 +020091 } else {
92 /*
93 * Only run POST when initiated via the sw-reset button mechanism
94 */
95 post_word_store(0);
96 }
97
98 /*
99 * Get current time
100 */
101 start_time = get_timer(0);
102
103 /*
104 * FLASH stuff...
105 */
106
107 /* Re-do sizing to get full correct info */
108
109 /* adjust flash start and offset */
110 mfebc(pb0cr, pbcr);
111 switch (gd->bd->bi_flashsize) {
112 case 1 << 20:
113 size_val = 0;
114 break;
115 case 2 << 20:
116 size_val = 1;
117 break;
118 case 4 << 20:
119 size_val = 2;
120 break;
121 case 8 << 20:
122 size_val = 3;
123 break;
124 case 16 << 20:
125 size_val = 4;
126 break;
127 case 32 << 20:
128 size_val = 5;
129 break;
130 case 64 << 20:
131 size_val = 6;
132 break;
133 case 128 << 20:
134 size_val = 7;
135 break;
136 }
137 pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
138 mtebc(pb0cr, pbcr);
139
140 /*
141 * Re-check to get correct base address
142 */
143 flash_get_size(gd->bd->bi_flashstart, 0);
144
145 /* Monitor protection ON by default */
146 (void)flash_protect(FLAG_PROTECT_SET,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200147 -CONFIG_SYS_MONITOR_LEN,
Stefan Roese779e9752007-08-14 14:44:41 +0200148 0xffffffff,
149 &flash_info[0]);
150
151 /* Env protection ON by default */
152 (void)flash_protect(FLAG_PROTECT_SET,
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200153 CONFIG_ENV_ADDR_REDUND,
154 CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
Stefan Roese779e9752007-08-14 14:44:41 +0200155 &flash_info[0]);
156
157 return 0;
158}
159
160/*
161 * Check Board Identity:
162 */
163int checkboard(void)
164{
165 char *s = getenv("serial#");
166
167 puts("Board: Zeus-");
168
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200169 if (in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_ZEUS_PE))
Stefan Roese779e9752007-08-14 14:44:41 +0200170 puts("PE");
171 else
172 puts("CE");
173
174 puts(" of BulletEndPoint");
175
176 if (s != NULL) {
177 puts(", serial# ");
178 puts(s);
179 }
180 putc('\n');
181
182 /* both LED's off */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200183 gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 0);
184 gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 0);
Stefan Roese779e9752007-08-14 14:44:41 +0200185 udelay(10000);
186 /* and on again */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200187 gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 1);
188 gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 1);
Stefan Roese779e9752007-08-14 14:44:41 +0200189
190 return (0);
191}
192
Stefan Roese779e9752007-08-14 14:44:41 +0200193static int default_env_var(char *buf, char *var)
194{
195 char *ptr;
196 char *val;
197
198 /*
199 * Find env variable
200 */
201 ptr = strstr(buf + 4, var);
202 if (ptr == NULL) {
203 printf("ERROR: %s not found!\n", var);
204 return -1;
205 }
206 ptr += strlen(var) + 1;
207
208 /*
209 * Now the ethaddr needs to be updated in the "normal"
210 * environment storage -> redundant flash.
211 */
212 val = ptr;
213 setenv(var, val);
214 printf("Updated %s from eeprom to %s!\n", var, val);
215
216 return 0;
217}
218
219static int restore_default(void)
220{
221 char *buf;
222 char *buf_save;
223 u32 crc;
224
225 /*
226 * Unprotect and erase environment area
227 */
228 flash_protect(FLAG_PROTECT_CLEAR,
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200229 CONFIG_ENV_ADDR_REDUND,
230 CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
Stefan Roese779e9752007-08-14 14:44:41 +0200231 &flash_info[0]);
232
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200233 flash_sect_erase(CONFIG_ENV_ADDR_REDUND,
234 CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1);
Stefan Roese779e9752007-08-14 14:44:41 +0200235
236 /*
237 * Now restore default environment from U-Boot image
238 * -> ipaddr, serverip...
239 */
240 memset(env_ptr, 0, sizeof(env_t));
241 memcpy(env_ptr->data, default_environment, ENV_SIZE);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200242#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
Stefan Roese779e9752007-08-14 14:44:41 +0200243 env_ptr->flags = 0xFF;
244#endif
245 env_crc_update();
246 gd->env_valid = 1;
247
248 /*
249 * Read board specific values from I2C EEPROM
250 * and set env variables accordingly
251 * -> ethaddr, eth1addr, serial#
252 */
253 buf = buf_save = malloc(FACTORY_RESET_ENV_SIZE);
254 if (eeprom_read(FACTORY_RESET_I2C_EEPROM, FACTORY_RESET_ENV_OFFS,
255 (u8 *)buf, FACTORY_RESET_ENV_SIZE)) {
256 puts("\nError reading EEPROM!\n");
257 } else {
258 crc = crc32(0, (u8 *)(buf + 4), FACTORY_RESET_ENV_SIZE - 4);
259 if (crc != *(u32 *)buf) {
Stefan Roeseb0021442008-07-10 09:58:06 +0200260 printf("ERROR: crc mismatch %08x %08x\n", crc, *(u32 *)buf);
Stefan Roese779e9752007-08-14 14:44:41 +0200261 return -1;
262 }
263
264 default_env_var(buf, "ethaddr");
265 buf += 8 + 18;
266 default_env_var(buf, "eth1addr");
267 buf += 9 + 18;
268 default_env_var(buf, "serial#");
269 }
270
271 /*
272 * Finally save updated env variables back to flash
273 */
274 saveenv();
275
276 free(buf_save);
277
278 return 0;
279}
280
281int do_set_default(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
282{
283 char *buf;
284 char *buf_save;
285 char str[32];
286 u32 crc;
287 char var[32];
288
289 if (argc < 4) {
290 puts("ERROR!\n");
291 return -1;
292 }
293
294 buf = buf_save = malloc(FACTORY_RESET_ENV_SIZE);
295 memset(buf, 0, FACTORY_RESET_ENV_SIZE);
296
297 strcpy(var, "ethaddr");
298 printf("Setting %s to %s\n", var, argv[1]);
299 sprintf(str, "%s=%s", var, argv[1]);
300 strcpy(buf + 4, str);
301 buf += strlen(str) + 1;
302
303 strcpy(var, "eth1addr");
304 printf("Setting %s to %s\n", var, argv[2]);
305 sprintf(str, "%s=%s", var, argv[2]);
306 strcpy(buf + 4, str);
307 buf += strlen(str) + 1;
308
309 strcpy(var, "serial#");
310 printf("Setting %s to %s\n", var, argv[3]);
311 sprintf(str, "%s=%s", var, argv[3]);
312 strcpy(buf + 4, str);
313
314 crc = crc32(0, (u8 *)(buf_save + 4), FACTORY_RESET_ENV_SIZE - 4);
315 *(u32 *)buf_save = crc;
316
317 if (eeprom_write(FACTORY_RESET_I2C_EEPROM, FACTORY_RESET_ENV_OFFS,
318 (u8 *)buf_save, FACTORY_RESET_ENV_SIZE)) {
319 puts("\nError writing EEPROM!\n");
320 return -1;
321 }
322
323 free(buf_save);
324
325 return 0;
326}
327
328U_BOOT_CMD(
329 setdef, 4, 1, do_set_default,
Peter Tyser2fb26042009-01-27 18:03:12 -0600330 "write board-specific values to EEPROM (ethaddr...)",
Stefan Roese779e9752007-08-14 14:44:41 +0200331 "ethaddr eth1addr serial#\n - write board-specific values to EEPROM\n"
332 );
333
334static inline int sw_reset_pressed(void)
335{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200336 return !(in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_SW_RESET));
Stefan Roese779e9752007-08-14 14:44:41 +0200337}
338
339int do_chkreset(cmd_tbl_t* cmdtp, int flag, int argc, char* argv[])
340{
341 int delta;
342 int count = 0;
343 int post = 0;
344 int factory_reset = 0;
345
346 if (!sw_reset_pressed()) {
347 printf("SW-Reset already high (Button released)\n");
348 printf("-> No action taken!\n");
349 return 0;
350 }
351
352 printf("Waiting for SW-Reset button to be released.");
353
354 while (1) {
355 delta = get_timer(start_time);
356 if (!sw_reset_pressed())
357 break;
358
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200359 if ((delta > CONFIG_SYS_TIME_POST) && !post) {
Stefan Roese779e9752007-08-14 14:44:41 +0200360 printf("\nWhen released now, POST tests will be started.");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200361 gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 0);
Stefan Roese779e9752007-08-14 14:44:41 +0200362 post = 1;
363 }
364
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200365 if ((delta > CONFIG_SYS_TIME_FACTORY_RESET) && !factory_reset) {
Stefan Roese779e9752007-08-14 14:44:41 +0200366 printf("\nWhen released now, factory default values"
367 " will be restored.");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200368 gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 0);
Stefan Roese779e9752007-08-14 14:44:41 +0200369 factory_reset = 1;
370 }
371
372 udelay(1000);
373 if (!(count++ % 1000))
374 printf(".");
375 }
376
377
378 printf("\nSW-Reset Button released after %d milli-seconds!\n", delta);
379
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200380 if (delta > CONFIG_SYS_TIME_FACTORY_RESET) {
Stefan Roese779e9752007-08-14 14:44:41 +0200381 printf("Starting factory reset value restoration...\n");
382
383 /*
384 * Restore default setting
385 */
386 restore_default();
387
388 /*
389 * Reset the board for default to become valid
390 */
391 do_reset(NULL, 0, 0, NULL);
392
393 return 0;
394 }
395
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200396 if (delta > CONFIG_SYS_TIME_POST) {
Stefan Roese779e9752007-08-14 14:44:41 +0200397 printf("Starting POST configuration...\n");
398
399 /*
400 * Enable POST upon next bootup
401 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200402 out_be32((void *)CONFIG_SYS_POST_MAGIC, REBOOT_MAGIC);
403 out_be32((void *)CONFIG_SYS_POST_VAL, REBOOT_DO_POST);
Stefan Roese779e9752007-08-14 14:44:41 +0200404 post_bootmode_init();
405
406 /*
407 * Reset the logbuffer for a clean start
408 */
409 logbuff_reset();
410
411 do_reset(NULL, 0, 0, NULL);
412
413 return 0;
414 }
415
416 return 0;
417}
418
419U_BOOT_CMD (
420 chkreset, 1, 1, do_chkreset,
Peter Tyser2fb26042009-01-27 18:03:12 -0600421 "Check for status of SW-reset button and act accordingly",
Stefan Roese779e9752007-08-14 14:44:41 +0200422 NULL
423);
424
425#if defined(CONFIG_POST)
426/*
427 * Returns 1 if keys pressed to start the power-on long-running tests
428 * Called from board_init_f().
429 */
430int post_hotkeys_pressed(void)
431{
432 u32 post_magic;
433 u32 post_val;
434
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200435 post_magic = in_be32((void *)CONFIG_SYS_POST_MAGIC);
436 post_val = in_be32((void *)CONFIG_SYS_POST_VAL);
Stefan Roese779e9752007-08-14 14:44:41 +0200437
438 if ((post_magic == REBOOT_MAGIC) && (post_val == REBOOT_DO_POST))
439 return 1;
440 else
441 return 0;
442}
443#endif /* CONFIG_POST */