1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24#include <common.h>
25#if defined(CONFIG_MGCOGE)
26#include <mpc8260.h>
27#endif
28#include <ioports.h>
29#include <malloc.h>
30#include <hush.h>
31#include <net.h>
32#include <asm/io.h>
33
34#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
35#include <libfdt.h>
36#endif
37
38#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
39#include <i2c.h>
40
41extern int i2c_soft_read_pin (void);
42
43int ivm_calc_crc (unsigned char *buf, int len)
44{
45 const unsigned short crc_tab[16] = {
46 0x0000, 0xCC01, 0xD801, 0x1400,
47 0xF001, 0x3C00, 0x2800, 0xE401,
48 0xA001, 0x6C00, 0x7800, 0xB401,
49 0x5000, 0x9C01, 0x8801, 0x4400};
50
51 unsigned short crc = 0;
52 unsigned short r1 = 0;
53 unsigned char byte = 0;
54 int i;
55
56
57 for (i = 0; i < len; i++) {
58 byte = buf[i];
59
60
61 r1 = crc_tab[crc & 0xF];
62 crc = ((crc) >> 4) & 0x0FFF;
63 crc = crc ^ r1 ^ crc_tab[byte & 0xF];
64
65
66 r1 = crc_tab[crc & 0xF];
67 crc = (crc >> 4) & 0x0FFF;
68 crc = crc ^ r1 ^ crc_tab[(byte >> 4) & 0xF];
69 }
70 return crc;
71}
72
73static int ivm_set_value (char *name, char *value)
74{
75 char tempbuf[256];
76
77 if (value != NULL) {
78 sprintf (tempbuf, "%s=%s", name, value);
79 return set_local_var (tempbuf, 0);
80 } else {
81 unset_local_var (name);
82 }
83 return 0;
84}
85
86static int ivm_get_value (unsigned char *buf, int len, char *name, int off,
87 int check)
88{
89 unsigned short val;
90 unsigned char valbuf[30];
91
92 if ((buf[off + 0] != buf[off + 2]) &&
93 (buf[off + 2] != buf[off + 4])) {
94 printf ("%s Error corrupted %s\n", __FUNCTION__, name);
95 val = -1;
96 } else {
97 val = buf[off + 0] + (buf[off + 1] << 8);
98 if ((val == 0) && (check == 1))
99 val = -1;
100 }
101 sprintf ((char *)valbuf, "%x", val);
102 ivm_set_value (name, (char *)valbuf);
103 return val;
104}
105
106#define INVENTORYBLOCKSIZE 0x100
107#define INVENTORYDATAADDRESS 0x21
108#define INVENTORYDATASIZE (INVENTORYBLOCKSIZE - INVENTORYDATAADDRESS - 3)
109
110#define IVM_POS_SHORT_TEXT 0
111#define IVM_POS_MANU_ID 1
112#define IVM_POS_MANU_SERIAL 2
113#define IVM_POS_PART_NUMBER 3
114#define IVM_POS_BUILD_STATE 4
115#define IVM_POS_SUPPLIER_PART_NUMBER 5
116#define IVM_POS_DELIVERY_DATE 6
117#define IVM_POS_SUPPLIER_BUILD_STATE 7
118#define IVM_POS_CUSTOMER_ID 8
119#define IVM_POS_CUSTOMER_PROD_ID 9
120#define IVM_POS_HISTORY 10
121#define IVM_POS_SYMBOL_ONLY 11
122
123static char convert_char (char c)
124{
125 return (c < ' ' || c > '~') ? '.' : c;
126}
127
128static int ivm_findinventorystring (int type,
129 unsigned char* const string,
130 unsigned long maxlen,
131 unsigned char *buf)
132{
133 int xcode = 0;
134 unsigned long cr = 0;
135 unsigned long addr = INVENTORYDATAADDRESS;
136 unsigned long size = 0;
137 unsigned long nr = type;
138 int stop = 0;
139
140 memset(string, '\0', maxlen);
141 switch (type) {
142 case IVM_POS_SYMBOL_ONLY:
143 nr = 0;
144 stop= 1;
145 break;
146 default:
147 nr = type;
148 stop = 0;
149 }
150
151
152 while ((cr != nr) && (addr < INVENTORYDATASIZE)) {
153 if ((buf[addr] == '\r')) {
154 cr++;
155 }
156 addr++;
157 }
158
159
160
161 if (addr < INVENTORYDATASIZE) {
162
163 for (; (buf[addr] != '\r') &&
164 ((buf[addr] != ';') || (!stop)) &&
165 (size < (maxlen - 1) &&
166 (addr < INVENTORYDATASIZE)); addr++)
167 {
168 size += sprintf((char *)string + size, "%c",
169 convert_char (buf[addr]));
170 }
171
172
173
174
175 if (addr == INVENTORYDATASIZE) {
176 xcode = -1;
177 printf ("Error end of string not found\n");
178 } else if ((size >= (maxlen - 1)) &&
179 (buf[addr] != '\r')) {
180 xcode = -1;
181 printf ("string too long till next CR\n");
182 }
183 } else {
184
185
186 xcode = -1;
187 printf ("not enough cr found\n");
188 }
189 return xcode;
190}
191
192#define GET_STRING(name, which, len) \
193 if (ivm_findinventorystring (which, valbuf, len, buf) == 0) { \
194 ivm_set_value (name, (char *)valbuf); \
195 }
196
197static int ivm_check_crc (unsigned char *buf, int block)
198{
199 unsigned long crc;
200 unsigned long crceeprom;
201
202 crc = ivm_calc_crc (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2);
203 crceeprom = (buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 1] + \
204 buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2] * 256);
205 if (crc != crceeprom) {
206 if (block == 0)
207 printf ("Error CRC Block: %d EEprom: calculated: \
208 %lx EEprom: %lx\n", block, crc, crceeprom);
209 return -1;
210 }
211 return 0;
212}
213
214static int ivm_analyze_block2 (unsigned char *buf, int len)
215{
216 unsigned char valbuf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN];
217 unsigned long count;
218
219
220 sprintf ((char *)valbuf, "%02X:%02X:%02X:%02X:%02X:%02X",
221 buf[1],
222 buf[2],
223 buf[3],
224 buf[4],
225 buf[5],
226 buf[6]);
227 ivm_set_value ("IVM_MacAddress", (char *)valbuf);
228 if (getenv ("ethaddr") == NULL)
229 setenv ((char *)"ethaddr", (char *)valbuf);
230
231 count = (buf[10] << 24) +
232 (buf[11] << 16) +
233 (buf[12] << 8) +
234 buf[13];
235 if (count == 0xffffffff)
236 count = 1;
237 sprintf ((char *)valbuf, "%lx", count);
238 ivm_set_value ("IVM_MacCount", (char *)valbuf);
239 return 0;
240}
241
242int ivm_analyze_eeprom (unsigned char *buf, int len)
243{
244 unsigned short val;
245 unsigned char valbuf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN];
246 unsigned char *tmp;
247
248 if (ivm_check_crc (buf, 0) != 0)
249 return -1;
250
251 ivm_get_value (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, "IVM_BoardId", 0, 1);
252 val = ivm_get_value (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, "IVM_HWKey", 6, 1);
253 if (val != 0xffff) {
254 sprintf ((char *)valbuf, "%x", ((val /100) % 10));
255 ivm_set_value ("IVM_HWVariant", (char *)valbuf);
256 sprintf ((char *)valbuf, "%x", (val % 100));
257 ivm_set_value ("IVM_HWVersion", (char *)valbuf);
258 }
259 ivm_get_value (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, "IVM_Functions", 12, 0);
260
261 GET_STRING("IVM_Symbol", IVM_POS_SYMBOL_ONLY, 8)
262 GET_STRING("IVM_DeviceName", IVM_POS_SHORT_TEXT, 64)
263 tmp = (unsigned char *) getenv("IVM_DeviceName");
264 if (tmp) {
265 int len = strlen ((char *)tmp);
266 int i = 0;
267
268 while (i < len) {
269 if (tmp[i] == ';') {
270 ivm_set_value ("IVM_ShortText", (char *)&tmp[i + 1]);
271 break;
272 }
273 i++;
274 }
275 if (i >= len)
276 ivm_set_value ("IVM_ShortText", NULL);
277 } else {
278 ivm_set_value ("IVM_ShortText", NULL);
279 }
280 GET_STRING("IVM_ManufacturerID", IVM_POS_MANU_ID, 32)
281 GET_STRING("IVM_ManufacturerSerialNumber", IVM_POS_MANU_SERIAL, 20)
282 GET_STRING("IVM_ManufacturerPartNumber", IVM_POS_PART_NUMBER, 32)
283 GET_STRING("IVM_ManufacturerBuildState", IVM_POS_BUILD_STATE, 32)
284 GET_STRING("IVM_SupplierPartNumber", IVM_POS_SUPPLIER_PART_NUMBER, 32)
285 GET_STRING("IVM_DelieveryDate", IVM_POS_DELIVERY_DATE, 32)
286 GET_STRING("IVM_SupplierBuildState", IVM_POS_SUPPLIER_BUILD_STATE, 32)
287 GET_STRING("IVM_CustomerID", IVM_POS_CUSTOMER_ID, 32)
288 GET_STRING("IVM_CustomerProductID", IVM_POS_CUSTOMER_PROD_ID, 32)
289
290 if (ivm_check_crc (&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], 2) != 0)
291 return 0;
292 ivm_analyze_block2 (&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], CONFIG_SYS_IVM_EEPROM_PAGE_LEN);
293
294 return 0;
295}
296
297int ivm_read_eeprom (void)
298{
299#if defined(CONFIG_I2C_MUX)
300 I2C_MUX_DEVICE *dev = NULL;
301#endif
302 uchar i2c_buffer[CONFIG_SYS_IVM_EEPROM_MAX_LEN];
303 uchar *buf;
304 unsigned dev_addr = CONFIG_SYS_IVM_EEPROM_ADR;
305
306#if defined(CONFIG_I2C_MUX)
307
308#if defined(CONFIG_SYS_I2C_IVM_BUS)
309 dev = i2c_mux_ident_muxstring ((uchar *)CONFIG_SYS_I2C_IVM_BUS);
310#else
311 buf = (unsigned char *) getenv ("EEprom_ivm");
312 if (buf != NULL)
313 dev = i2c_mux_ident_muxstring (buf);
314#endif
315 if (dev == NULL) {
316 printf ("Error couldnt add Bus for IVM\n");
317 return -1;
318 }
319 i2c_set_bus_num (dev->busid);
320#endif
321
322 buf = (unsigned char *) getenv ("EEprom_ivm_addr");
323 if (buf != NULL)
324 dev_addr = simple_strtoul ((char *)buf, NULL, 16);
325
326 if (i2c_read(dev_addr, 0, 1, i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN) != 0) {
327 printf ("Error reading EEprom\n");
328 return -2;
329 }
330
331 return ivm_analyze_eeprom (i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN);
332}
333
334#if defined(CONFIG_SYS_I2C_INIT_BOARD)
335#define DELAY_ABORT_SEQ 62
336#define DELAY_HALF_PERIOD (500 / (CONFIG_SYS_I2C_SPEED / 1000))
337
338#if defined(CONFIG_MGCOGE)
339#define SDA_MASK 0x00010000
340#define SCL_MASK 0x00020000
341static void set_pin (int state, unsigned long mask)
342{
343 volatile ioport_t *iop = ioport_addr ((immap_t *)CONFIG_SYS_IMMR, 3);
344
345 if (state)
346 iop->pdat |= (mask);
347 else
348 iop->pdat &= ~(mask);
349
350 iop->pdir |= (mask);
351}
352
353static int get_pin (unsigned long mask)
354{
355 volatile ioport_t *iop = ioport_addr ((immap_t *)CONFIG_SYS_IMMR, 3);
356
357 iop->pdir &= ~(mask);
358 return (0 != (iop->pdat & (mask)));
359}
360
361static void set_sda (int state)
362{
363 set_pin (state, SDA_MASK);
364}
365
366static void set_scl (int state)
367{
368 set_pin (state, SCL_MASK);
369}
370
371static int get_sda (void)
372{
373 return get_pin (SDA_MASK);
374}
375
376static int get_scl (void)
377{
378 return get_pin (SCL_MASK);
379}
380
381#if defined(CONFIG_HARD_I2C)
382static void setports (int gpio)
383{
384 volatile ioport_t *iop = ioport_addr ((immap_t *)CONFIG_SYS_IMMR, 3);
385
386 if (gpio) {
387 iop->ppar &= ~(SDA_MASK | SCL_MASK);
388 iop->podr &= ~(SDA_MASK | SCL_MASK);
389 } else {
390 iop->ppar |= (SDA_MASK | SCL_MASK);
391 iop->pdir &= ~(SDA_MASK | SCL_MASK);
392 iop->podr |= (SDA_MASK | SCL_MASK);
393 }
394}
395#endif
396#endif
397
398#if defined(CONFIG_KM8XX)
399static void set_sda (int state)
400{
401 I2C_SDA(state);
402}
403
404static void set_scl (int state)
405{
406 I2C_SCL(state);
407}
408
409static int get_sda (void)
410{
411 return I2C_READ;
412}
413
414static int get_scl (void)
415{
416 int val;
417
418 *(unsigned short *)(I2C_BASE_DIR) &= ~SCL_CONF;
419 udelay (1);
420 val = *(unsigned char *)(I2C_BASE_PORT);
421
422 return ((val & SCL_BIT) == SCL_BIT);
423}
424
425#endif
426
427#if !defined(CONFIG_KMETER1)
428static void writeStartSeq (void)
429{
430 set_sda (1);
431 udelay (DELAY_HALF_PERIOD);
432 set_scl (1);
433 udelay (DELAY_HALF_PERIOD);
434 set_sda (0);
435 udelay (DELAY_HALF_PERIOD);
436 set_scl (0);
437 udelay (DELAY_HALF_PERIOD);
438}
439
440
441
442
443
444
445
446
447static int i2c_make_abort (void)
448{
449 int scl_state = 0;
450 int sda_state = 0;
451 int i = 0;
452 int ret = 0;
453
454 if (!get_sda ()) {
455 ret = -1;
456 while (i < 16) {
457 i++;
458 set_scl (0);
459 udelay (DELAY_ABORT_SEQ);
460 set_scl (1);
461 udelay (DELAY_ABORT_SEQ);
462 scl_state = get_scl ();
463 sda_state = get_sda ();
464 if (scl_state && sda_state) {
465 ret = 0;
466 break;
467 }
468 }
469 }
470 if (ret == 0) {
471 for (i =0; i < 5; i++) {
472 writeStartSeq ();
473 }
474 }
475 get_sda ();
476 return ret;
477}
478#endif
479
480
481
482
483
484void i2c_init_board(void)
485{
486#if defined(CONFIG_KMETER1)
487 struct fsl_i2c *dev;
488 dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET);
489 uchar dummy;
490
491 out_8 (&dev->cr, (I2C_CR_MSTA));
492 out_8 (&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
493 dummy = in_8(&dev->dr);
494 dummy = in_8(&dev->dr);
495 if (dummy != 0xff) {
496 dummy = in_8(&dev->dr);
497 }
498 out_8 (&dev->cr, (I2C_CR_MEN));
499 out_8 (&dev->cr, 0x00);
500 out_8 (&dev->cr, (I2C_CR_MEN));
501
502#else
503#if defined(CONFIG_HARD_I2C)
504 volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ;
505 volatile i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c;
506
507
508
509 i2c->i2c_i2mod &= ~0x01;
510
511
512 setports (1);
513#endif
514
515
516 i2c_make_abort ();
517
518#if defined(CONFIG_HARD_I2C)
519
520 setports (0);
521#endif
522#endif
523}
524#endif
525#endif
526
527#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
528int fdt_set_node_and_value (void *blob,
529 char *nodename,
530 char *regname,
531 void *var,
532 int size)
533{
534 int ret = 0;
535 int nodeoffset = 0;
536
537 nodeoffset = fdt_path_offset (blob, nodename);
538 if (nodeoffset >= 0) {
539 ret = fdt_setprop (blob, nodeoffset, regname, var,
540 size);
541 if (ret < 0)
542 printf("ft_blob_update(): cannot set %s/%s "
543 "property err:%s\n", nodename, regname,
544 fdt_strerror (ret));
545 } else {
546 printf("ft_blob_update(): cannot find %s node "
547 "err:%s\n", nodename, fdt_strerror (nodeoffset));
548 }
549 return ret;
550}
551int fdt_get_node_and_value (void *blob,
552 char *nodename,
553 char *propname,
554 void **var)
555{
556 int len;
557 int nodeoffset = 0;
558
559 nodeoffset = fdt_path_offset (blob, nodename);
560 if (nodeoffset >= 0) {
561 *var = (void *)fdt_getprop (blob, nodeoffset, propname, &len);
562 if (len == 0) {
563
564 printf ("%s no value\n", __FUNCTION__);
565 return -1;
566 } else if (len > 0) {
567 return len;
568 } else {
569 printf ("libfdt fdt_getprop(): %s\n",
570 fdt_strerror(len));
571 return -2;
572 }
573 } else {
574 printf("%s: cannot find %s node err:%s\n", __FUNCTION__,
575 nodename, fdt_strerror (nodeoffset));
576 return -3;
577 }
578}
579#endif
580
581int ethernet_present (void)
582{
583 return (in_8((u8 *)CONFIG_SYS_PIGGY_BASE + CONFIG_SYS_SLOT_ID_OFF) & 0x80);
584}
585
586int board_eth_init (bd_t *bis)
587{
588#ifdef CONFIG_KEYMILE_HDLC_ENET
589 (void)keymile_hdlc_enet_initialize (bis);
590#endif
591 if (ethernet_present ()) {
592 return -1;
593 }
594 return 0;
595}
596
