summaryrefslogtreecommitdiff
path: root/util/flashrom/flash_enable.c
blob: 91c5814537984a7eda27aa6357b11cc6ea59b430 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
/*
 *   flash rom utility: enable flash writes
 *
 *   Copyright (C) 2000-2004 ???
 *   Copyright (C) 2005 coresystems GmbH <stepan@openbios.org>
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   version 2
 *
 */

#include <sys/io.h>
#include <stdio.h>
#include <pci/pci.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include "lbtable.h"
#include "debug.h"

static int enable_flash_sis630(struct pci_dev *dev, char *name)
{
	char b;

	/* get io privilege access PCI configuration space */
	if (iopl(3) != 0) {
		perror("Can not set io priviliage");
		exit(1);
	}

	/* Enable 0xFFF8000~0xFFFF0000 decoding on SiS 540/630 */
	outl(0x80000840, 0x0cf8);
	b = inb(0x0cfc) | 0x0b;
	outb(b, 0xcfc);
	/* Flash write enable on SiS 540/630 */
	outl(0x80000845, 0x0cf8);
	b = inb(0x0cfd) | 0x40;
	outb(b, 0xcfd);

	/* The same thing on SiS 950 SuperIO side */
	outb(0x87, 0x2e);
	outb(0x01, 0x2e);
	outb(0x55, 0x2e);
	outb(0x55, 0x2e);

	if (inb(0x2f) != 0x87) {
		outb(0x87, 0x4e);
		outb(0x01, 0x4e);
		outb(0x55, 0x4e);
		outb(0xaa, 0x4e);
		if (inb(0x4f) != 0x87) {
			printf("Can not access SiS 950\n");
			return -1;
		}
		outb(0x24, 0x4e);
		b = inb(0x4f) | 0xfc;
		outb(0x24, 0x4e);
		outb(b, 0x4f);
		outb(0x02, 0x4e);
		outb(0x02, 0x4f);
	}

	outb(0x24, 0x2e);
	printf("2f is %#x\n", inb(0x2f));
	b = inb(0x2f) | 0xfc;
	outb(0x24, 0x2e);
	outb(b, 0x2f);

	outb(0x02, 0x2e);
	outb(0x02, 0x2f);

	return 0;
}

static int enable_flash_e7500(struct pci_dev *dev, char *name)
{
	/* register 4e.b gets or'ed with one */
	uint8_t old, new;
	/* if it fails, it fails. There are so many variations of broken mobos
	 * that it is hard to argue that we should quit at this point. 
	 */

	old = pci_read_byte(dev, 0x4e);

	new = old | 1;

	if (new == old)
		return 0;

	pci_write_byte(dev, 0x4e, new);

	if (pci_read_byte(dev, 0x4e) != new) {
		printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
		       0x4e, new, name);
		return -1;
	}
	return 0;
}

static int enable_flash_ich4(struct pci_dev *dev, char *name)
{
	/* register 4e.b gets or'ed with one */
	uint8_t old, new;
	/* if it fails, it fails. There are so many variations of broken mobos
	 * that it is hard to argue that we should quit at this point. 
	 */

	old = pci_read_byte(dev, 0x4e);

	new = old | 1;

	if (new == old)
		return 0;

	pci_write_byte(dev, 0x4e, new);

	if (pci_read_byte(dev, 0x4e) != new) {
		printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
		       0x4e, new, name);
		return -1;
	}
	return 0;
}

static int enable_flash_vt8235(struct pci_dev *dev, char *name)
{
	uint8_t old, new, val;
	unsigned int base;
	int ok;

	/* get io privilege access PCI configuration space */
	if (iopl(3) != 0) {
		perror("Can not set io priviliage");
		exit(1);
	}

	old = pci_read_byte(dev, 0x40);

	new = old | 0x10;

	if (new == old)
		return 0;

	ok = pci_write_byte(dev, 0x40, new);
	if (ok != 0) {
		printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
		       old, new, name);
	}

	/* enable GPIO15 which is connected to write protect. */
	base = ((pci_read_byte(dev, 0x88) & 0x80) | pci_read_byte(dev, 0x89) << 8);
	val = inb(base + 0x4d);
	val |= 0x80;
	outb(val, base + 0x4d);

	if (ok != 0) {
		return -1;
	} else {
		return 0;
	}
}

static int enable_flash_vt8231(struct pci_dev *dev, char *name)
{
	uint8_t val;

	val = pci_read_byte(dev, 0x40);
	val |= 0x10;
	pci_write_byte(dev, 0x40, val);

	if (pci_read_byte(dev, 0x40) != val) {
		printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
		       0x40, val, name);
		return -1;
	}
	return 0;
}

static int enable_flash_cs5530(struct pci_dev *dev, char *name)
{
	uint8_t new;

	pci_write_byte(dev, 0x52, 0xee);

	new = pci_read_byte(dev, 0x52);

	if (new != 0xee) {
		printf("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
		       0x52, new, name);
		return -1;
	}
	
	new = pci_read_byte(dev, 0x5b) | 0x20;
	pci_write_byte(dev, 0x5b, new);
	
	return 0;
}


static int enable_flash_sc1100(struct pci_dev *dev, char *name)
{
	uint8_t new;

	pci_write_byte(dev, 0x52, 0xee);

	new = pci_read_byte(dev, 0x52);

	if (new != 0xee) {
		printf("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
		       0x52, new, name);
		return -1;
	}
	return 0;
}

static int enable_flash_sis5595(struct pci_dev *dev, char *name)
{
	uint8_t new, newer;

	new = pci_read_byte(dev, 0x45);

	/* clear bit 5 */
	new &= (~0x20);
	/* set bit 2 */
	new |= 0x4;

	pci_write_byte(dev, 0x45, new);

	newer = pci_read_byte(dev, 0x45);
	if (newer != new) {
		printf("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
		       0x45, new, name);
		printf("Stuck at 0x%x\n", newer);
		return -1;
	}
	return 0;
}

static int enable_flash_amd8111(struct pci_dev *dev, char *name)
{
	/* register 4e.b gets or'ed with one */
	uint8_t old, new;
	/* if it fails, it fails. There are so many variations of broken mobos
	 * that it is hard to argue that we should quit at this point. 
	 */

	/* enable decoding at 0xffb00000 to 0xffffffff */
	old = pci_read_byte(dev, 0x43);
	new = old | 0xC0;
	if (new != old) {
		pci_write_byte(dev, 0x43, new);
		if (pci_read_byte(dev, 0x43) != new) {
			printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
			       0x43, new, name);
		}
	}

	old = pci_read_byte(dev, 0x40);
	new = old | 0x01;
	if (new == old)
		return 0;
	pci_write_byte(dev, 0x40, new);

	if (pci_read_byte(dev, 0x40) != new) {
		printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
		       0x40, new, name);
		return -1;
	}
	return 0;
}

//By yhlu
static int enable_flash_ck804(struct pci_dev *dev, char *name)
{
        /* register 4e.b gets or'ed with one */
        uint8_t old, new;
        /* if it fails, it fails. There are so many variations of broken mobos
         * that it is hard to argue that we should quit at this point. 
         */

        //dump_pci_device(dev); 
        
        old = pci_read_byte(dev, 0x88);
        new = old | 0xc0;
        if (new != old) {
                pci_write_byte(dev, 0x88, new);
                if (pci_read_byte(dev, 0x88) != new) {
                        printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
                               0x88, new, name);
                }
        }

        old = pci_read_byte(dev, 0x6d);
        new = old | 0x01;
        if (new == old)
                return 0;
        pci_write_byte(dev, 0x6d, new);

        if (pci_read_byte(dev, 0x6d) != new) {
                printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
                       0x6d, new, name);
                return -1;
        }
        return 0;
}

typedef struct penable {
	unsigned short vendor, device;
	char *name;
	int (*doit) (struct pci_dev * dev, char *name);
} FLASH_ENABLE;

static FLASH_ENABLE enables[] = {
	{0x1039, 0x0630, "sis630", enable_flash_sis630},
	{0x8086, 0x2480, "E7500", enable_flash_e7500},
	{0x8086, 0x24c0, "ICH4", enable_flash_ich4},
	{0x8086, 0x24d0, "ICH5", enable_flash_ich4},
	{0x1106, 0x8231, "VT8231", enable_flash_vt8231},
	{0x1106, 0x3177, "VT8235", enable_flash_vt8235},
	{0x1078, 0x0100, "CS5530", enable_flash_cs5530},
	{0x100b, 0x0510, "SC1100", enable_flash_sc1100},
	{0x1039, 0x0008, "SIS5595", enable_flash_sis5595},
	{0x1022, 0x7468, "AMD8111", enable_flash_amd8111},
        {0x10de, 0x0050, "NVIDIA CK804", enable_flash_ck804}, // LPC
        {0x10de, 0x0051, "NVIDIA CK804", enable_flash_ck804}, // Pro
        {0x10de, 0x00d3, "NVIDIA CK804", enable_flash_ck804}, // Slave, should not be here, to fix known bug for A01.
};

static int mbenable_island_aruma(void)
{
#define EFIR 0x2e  // Exteneded function index register, either 0x2e or 0x4e
#define EFDR EFIR + 1  // Extended function data register, one plus the index reg.
	char b;
//  Disable the flash write protect.  The flash write protect is 
//  connected to the WinBond w83627hf GPIO 24.

	/* get io privilege access winbond config space */
	if (iopl(3) != 0) {
		perror("Can not set io priviliage");
		exit(1);
	}
	
	printf("Disabling mainboard flash write protection.\n");

	outb(0x87, EFIR); // sequence to unlock extended functions
	outb(0x87, EFIR);

	outb(0x20, EFIR); // SIO device ID register
	b = inb(EFDR); 
	printf_debug("W83627HF device ID = 0x%x\n",b);

	if (b != 0x52) {
		perror("Incorrect device ID, aborting write protect disable\n");
		exit(1);
	}

	outb(0x2b, EFIR); // GPIO multiplexed pin reg.
	b = inb(EFDR) | 0x10; 
	outb(0x2b, EFIR); 
	outb(b, EFDR); // select GPIO 24 instead of WDTO

	outb(0x7, EFIR); // logical device select
	outb(0x8, EFDR); // point to device 8, GPIO port 2

	outb(0x30, EFIR); // logic device activation control
	outb(0x1, EFDR); // activate

	outb(0xf0, EFIR); // GPIO 20-27 I/O selection register
	b = inb(EFDR) & ~0x10; 
	outb(0xf0, EFIR); 
	outb(b, EFDR); // set GPIO 24 as an output

	outb(0xf1, EFIR); // GPIO 20-27 data register
	b = inb(EFDR) | 0x10; 
	outb(0xf1, EFIR); 
	outb(b, EFDR); // set GPIO 24

	outb(0xaa, EFIR); // command to exit extended functions

	return 0;
}

typedef struct mbenable {
	char *vendor, *part;
	int (*doit)(void);
} MAINBOARD_ENABLE;

static MAINBOARD_ENABLE mbenables[] = {
	{ "ISLAND", "ARUMA", mbenable_island_aruma },
};

int enable_flash_write()
{
	int i;
	struct pci_access *pacc;
	struct pci_dev *dev = 0;
	FLASH_ENABLE *enable = 0;

	pacc = pci_alloc();	/* Get the pci_access structure */
	/* Set all options you want -- here we stick with the defaults */
	pci_init(pacc);		/* Initialize the PCI library */
	pci_scan_bus(pacc);	/* We want to get the list of devices */

	
	/* First look whether we have to do something for this
	 * motherboard.
	 */
	for (i = 0; i < sizeof(mbenables) / sizeof(mbenables[0]); i++) {
		if(lb_vendor && !strcmp(mbenables[i].vendor, lb_vendor) &&
		   lb_part && !strcmp(mbenables[i].part, lb_part)) {
			mbenables[i].doit();
			break;
		}
	}
	
	/* now let's try to find the chipset we have ... */
	for (i = 0; i < sizeof(enables) / sizeof(enables[0]) && (!dev);
	     i++) {
		struct pci_filter f;
		struct pci_dev *z;
		/* the first param is unused. */
		pci_filter_init((struct pci_access *) 0, &f);
		f.vendor = enables[i].vendor;
		f.device = enables[i].device;
		for (z = pacc->devices; z; z = z->next)
			if (pci_filter_match(&f, z)) {
				enable = &enables[i];
				dev = z;
			}
	}

	/* now do the deed. */
	if (enable) {
		printf("Enabling flash write on %s...", enable->name);
		if (enable->doit(dev, enable->name) == 0)
			printf("OK\n");
	}
	return 0;
}