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Luc Verhaegen8e3a6002007-04-04 22:45:58 +00001/*
2 * flash rom utility: enable flash writes (board specific)
3 *
4 * Copyright (C) 2005-2007 coresystems GmbH <stepan@coresystems.de>
5 * Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
6 * Copyright (C) 2007 Luc Verhaegen <libv@skynet.be>
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
10 * version 2
11 *
12 */
13
14/*
15 * Contains the board specific flash enables.
16 */
17
18#include <stdio.h>
19#include <pci/pci.h>
20#include <stdint.h>
21#include <string.h>
22
23#include "flash.h"
24#include "debug.h"
25
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000026/*
27 * Helper functions for many Winbond superIOs of the w836xx range.
28 */
29#define W836_INDEX 0x2E
30#define W836_DATA 0x2F
31
32/* Enter extended functions */
Uwe Hermanna7e05482007-05-09 10:17:44 +000033static void w836xx_ext_enter(void)
Mondrian Nuessleaef1c7c2007-05-03 10:09:23 +000034{
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000035 outb(0x87, W836_INDEX);
36 outb(0x87, W836_INDEX);
37}
Mondrian Nuessleaef1c7c2007-05-03 10:09:23 +000038
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000039/* Leave extended functions */
Uwe Hermanna7e05482007-05-09 10:17:44 +000040static void w836xx_ext_leave(void)
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000041{
42 outb(0xAA, W836_INDEX);
43}
Mondrian Nuessleaef1c7c2007-05-03 10:09:23 +000044
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000045/* General functions for read/writing WB SuperIOs */
Uwe Hermanna7e05482007-05-09 10:17:44 +000046static unsigned char wbsio_read(unsigned char index)
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000047{
48 outb(index, W836_INDEX);
49 return inb(W836_DATA);
50}
Mondrian Nuessleaef1c7c2007-05-03 10:09:23 +000051
Uwe Hermanna7e05482007-05-09 10:17:44 +000052static void wbsio_write(unsigned char index, unsigned char data)
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000053{
54 outb(index, W836_INDEX);
55 outb(data, W836_DATA);
56}
Mondrian Nuessleaef1c7c2007-05-03 10:09:23 +000057
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000058static void
Uwe Hermanna7e05482007-05-09 10:17:44 +000059wbsio_mask(unsigned char index, unsigned char data, unsigned char mask)
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000060{
61 unsigned char tmp;
Mondrian Nuessleaef1c7c2007-05-03 10:09:23 +000062
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000063 outb(index, W836_INDEX);
64 tmp = inb(W836_DATA) & ~mask;
65 outb(tmp | (data & mask), W836_DATA);
Mondrian Nuessleaef1c7c2007-05-03 10:09:23 +000066}
67
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000068/*
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000069 * WinBond w83627hf: raise GPIO24.
70 *
71 * Suited for:
72 * * Agami Aruma
73 * * IWILL DK8-HTX
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000074 */
75
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000076static int w83627hf_gpio24_raise(const char *name)
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000077{
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000078 w836xx_ext_enter();
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000079
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000080 /* Is this the w83627hf? */
Uwe Hermanna7e05482007-05-09 10:17:44 +000081 if (wbsio_read(0x20) != 0x52) { /* SIO device ID register */
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000082 fprintf(stderr, "\nERROR: %s: W83627HF: Wrong ID: 0x%02X.\n",
83 name, wbsio_read(0x20));
84 w836xx_ext_leave();
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000085 return -1;
86 }
87
Luc Verhaegen7977f4e2007-05-04 04:47:04 +000088 /* PIN89S: WDTO/GP24 multiplex -> GPIO24 */
89 wbsio_mask(0x2B, 0x10, 0x10);
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000090
Uwe Hermanna7e05482007-05-09 10:17:44 +000091 wbsio_write(0x07, 0x08); /* Select logical device 8: GPIO port 2 */
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000092
Uwe Hermanna7e05482007-05-09 10:17:44 +000093 wbsio_mask(0x30, 0x01, 0x01); /* Activate logical device. */
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000094
Uwe Hermanna7e05482007-05-09 10:17:44 +000095 wbsio_mask(0xF0, 0x00, 0x10); /* GPIO24 -> output */
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000096
Uwe Hermanna7e05482007-05-09 10:17:44 +000097 wbsio_mask(0xF2, 0x00, 0x10); /* Clear GPIO24 inversion */
Luc Verhaegen8e3a6002007-04-04 22:45:58 +000098
Uwe Hermanna7e05482007-05-09 10:17:44 +000099 wbsio_mask(0xF1, 0x10, 0x10); /* Raise GPIO24 */
Luc Verhaegen7977f4e2007-05-04 04:47:04 +0000100
101 w836xx_ext_leave();
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000102
103 return 0;
104}
105
106/*
107 * Suited for VIAs EPIA M and MII, and maybe other CLE266 based EPIAs.
108 *
109 * We don't need to do this when using linuxbios, GPIO15 is never lowered there.
110 */
111
Luc Verhaegen7977f4e2007-05-04 04:47:04 +0000112static int board_via_epia_m(const char *name)
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000113{
Uwe Hermanna7e05482007-05-09 10:17:44 +0000114 struct pci_dev *dev;
115 unsigned int base;
116 uint8_t val;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000117
Uwe Hermanna7e05482007-05-09 10:17:44 +0000118 dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */
119 if (!dev) {
120 fprintf(stderr, "\nERROR: VT8235 ISA Bridge not found.\n");
121 return -1;
122 }
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000123
Uwe Hermanna7e05482007-05-09 10:17:44 +0000124 /* GPIO12-15 -> output */
125 val = pci_read_byte(dev, 0xE4);
126 val |= 0x10;
127 pci_write_byte(dev, 0xE4, val);
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000128
Uwe Hermanna7e05482007-05-09 10:17:44 +0000129 /* Get Power Management IO address. */
130 base = pci_read_word(dev, 0x88) & 0xFF80;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000131
Uwe Hermanna7e05482007-05-09 10:17:44 +0000132 /* enable GPIO15 which is connected to write protect. */
133 val = inb(base + 0x4D);
134 val |= 0x80;
135 outb(val, base + 0x4D);
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000136
Uwe Hermanna7e05482007-05-09 10:17:44 +0000137 return 0;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000138}
139
140/*
Luc Verhaegen6b141752007-05-20 16:16:13 +0000141 * Suited for ASUS A7V8X-MX SE and A7V400-MX.
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000142 *
143 */
144
Luc Verhaegen7977f4e2007-05-04 04:47:04 +0000145static int board_asus_a7v8x_mx(const char *name)
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000146{
Uwe Hermanna7e05482007-05-09 10:17:44 +0000147 struct pci_dev *dev;
148 uint8_t val;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000149
Uwe Hermanna7e05482007-05-09 10:17:44 +0000150 dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */
151 if (!dev) {
152 fprintf(stderr, "\nERROR: VT8235 ISA Bridge not found.\n");
153 return -1;
154 }
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000155
Uwe Hermanna7e05482007-05-09 10:17:44 +0000156 /* This bit is marked reserved actually */
157 val = pci_read_byte(dev, 0x59);
158 val &= 0x7F;
159 pci_write_byte(dev, 0x59, val);
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000160
Luc Verhaegen7977f4e2007-05-04 04:47:04 +0000161 /* Raise ROM MEMW# line on Winbond w83697 SuperIO */
Uwe Hermanna7e05482007-05-09 10:17:44 +0000162 w836xx_ext_enter();
Luc Verhaegen7977f4e2007-05-04 04:47:04 +0000163
Uwe Hermanna7e05482007-05-09 10:17:44 +0000164 if (!(wbsio_read(0x24) & 0x02)) /* flash rom enabled? */
165 wbsio_mask(0x24, 0x08, 0x08); /* enable MEMW# */
Luc Verhaegen7977f4e2007-05-04 04:47:04 +0000166
167 w836xx_ext_leave();
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000168
Uwe Hermanna7e05482007-05-09 10:17:44 +0000169 return 0;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000170}
171
172/*
Luc Verhaegen6b141752007-05-20 16:16:13 +0000173 * Suited for ASUS P5A.
174 *
175 * This is rather nasty code, but there's no way to do this cleanly.
176 * We're basically talking to some unknown device on SMBus, my guess
177 * is that it is the Winbond W83781D that lives near the DIP BIOS.
178 */
179
180static int board_asus_p5a(const char *name)
181{
182 uint8_t tmp;
183 int i;
184
185#define ASUSP5A_LOOP 5000
186
187 outb(0x00, 0xE807);
188 outb(0xEF, 0xE803);
189
190 outb(0xFF, 0xE800);
191
192 for (i = 0; i < ASUSP5A_LOOP; i++) {
193 outb(0xE1, 0xFF);
194 if (inb(0xE800) & 0x04)
195 break;
196 }
197
198 if (i == ASUSP5A_LOOP) {
199 printf("%s: Unable to contact device.\n", name);
200 return -1;
201 }
202
203 outb(0x20, 0xE801);
204 outb(0x20, 0xE1);
205
206 outb(0xFF, 0xE802);
207
208 for (i = 0; i < ASUSP5A_LOOP; i++) {
209 tmp = inb(0xE800);
210 if (tmp & 0x70)
211 break;
212 }
213
214 if ((i == ASUSP5A_LOOP) || !(tmp & 0x10)) {
215 printf("%s: failed to read device.\n", name);
216 return -1;
217 }
218
219 tmp = inb(0xE804);
220 tmp &= ~0x02;
221
222 outb(0x00, 0xE807);
223 outb(0xEE, 0xE803);
224
225 outb(tmp, 0xE804);
226
227 outb(0xFF, 0xE800);
228 outb(0xE1, 0xFF);
229
230 outb(0x20, 0xE801);
231 outb(0x20, 0xE1);
232
233 outb(0xFF, 0xE802);
234
235 for (i = 0; i < ASUSP5A_LOOP; i++) {
236 tmp = inb(0xE800);
237 if (tmp & 0x70)
238 break;
239 }
240
241 if ((i == ASUSP5A_LOOP) || !(tmp & 0x10)) {
242 printf("%s: failed to write to device.\n", name);
243 return -1;
244 }
245
246 return 0;
247}
248
249/*
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000250 * We use 2 sets of ids here, you're free to choose which is which. This
251 * to provide a very high degree of certainty when matching a board on
252 * the basis of Subsystem/card ids. As not every vendor handles
253 * subsystem/card ids in a sane manner.
254 *
255 * Keep the second set nulled if it should be ignored.
256 *
257 */
258
259struct board_pciid_enable {
Uwe Hermanna7e05482007-05-09 10:17:44 +0000260 /* Any device, but make it sensible, like the isa bridge. */
261 uint16_t first_vendor;
262 uint16_t first_device;
263 uint16_t first_card_vendor;
264 uint16_t first_card_device;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000265
Uwe Hermanna7e05482007-05-09 10:17:44 +0000266 /* Any device, but make it sensible, like
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000267 * the host bridge. May be NULL
268 */
Uwe Hermanna7e05482007-05-09 10:17:44 +0000269 uint16_t second_vendor;
270 uint16_t second_device;
271 uint16_t second_card_vendor;
272 uint16_t second_card_device;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000273
Uwe Hermanna7e05482007-05-09 10:17:44 +0000274 /* From linuxbios table */
275 char *lb_vendor;
276 char *lb_part;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000277
Uwe Hermanna7e05482007-05-09 10:17:44 +0000278 char *name;
279 int (*enable) (const char *name);
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000280};
281
282struct board_pciid_enable board_pciid_enables[] = {
Uwe Hermanna7e05482007-05-09 10:17:44 +0000283 {0x1022, 0x7468, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
284 "iwill", "dk8_htx", "IWILL DK8-HTX", w83627hf_gpio24_raise},
285 {0x1022, 0x746B, 0x1022, 0x36C0, 0x0000, 0x0000, 0x0000, 0x0000,
286 "AGAMI", "ARUMA", "agami Aruma", w83627hf_gpio24_raise},
287 {0x1106, 0x3177, 0x1106, 0xAA01, 0x1106, 0x3123, 0x1106, 0xAA01,
288 NULL, NULL, "VIA EPIA M/MII/...", board_via_epia_m},
289 {0x1106, 0x3177, 0x1043, 0x80A1, 0x1106, 0x3205, 0x1043, 0x8118,
290 NULL, NULL, "ASUS A7V8-MX SE", board_asus_a7v8x_mx},
Luc Verhaegen6b141752007-05-20 16:16:13 +0000291 {0x10B9, 0x1541, 0x0000, 0x0000, 0x10B9, 0x1533, 0x0000, 0x0000,
292 "asus", "p5a", "ASUS P5A", board_asus_p5a},
Uwe Hermanna7e05482007-05-09 10:17:44 +0000293 {0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL} /* Keep this */
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000294};
295
296/*
297 * Match boards on linuxbios table gathered vendor and part name.
298 * Require main pci-ids to match too as extra safety.
299 *
300 */
Uwe Hermanna7e05482007-05-09 10:17:44 +0000301static struct board_pciid_enable *board_match_linuxbios_name(char *vendor,
302 char *part)
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000303{
Uwe Hermanna7e05482007-05-09 10:17:44 +0000304 struct board_pciid_enable *board = board_pciid_enables;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000305
Uwe Hermanna7e05482007-05-09 10:17:44 +0000306 for (; board->name; board++) {
307 if (!board->lb_vendor || strcmp(board->lb_vendor, vendor))
308 continue;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000309
Uwe Hermanna7e05482007-05-09 10:17:44 +0000310 if (!board->lb_part || strcmp(board->lb_part, part))
311 continue;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000312
Uwe Hermanna7e05482007-05-09 10:17:44 +0000313 if (!pci_dev_find(board->first_vendor, board->first_device))
314 continue;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000315
Uwe Hermanna7e05482007-05-09 10:17:44 +0000316 if (board->second_vendor &&
317 !pci_dev_find(board->second_vendor, board->second_device))
318 continue;
319 return board;
320 }
321 return NULL;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000322}
323
324/*
325 * Match boards on pci ids and subsystem ids.
326 * Second set of ids can be main only or missing completely.
327 */
328static struct board_pciid_enable *board_match_pci_card_ids(void)
329{
Uwe Hermanna7e05482007-05-09 10:17:44 +0000330 struct board_pciid_enable *board = board_pciid_enables;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000331
Uwe Hermanna7e05482007-05-09 10:17:44 +0000332 for (; board->name; board++) {
333 if (!board->first_card_vendor || !board->first_card_device)
334 continue;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000335
Uwe Hermanna7e05482007-05-09 10:17:44 +0000336 if (!pci_card_find(board->first_vendor, board->first_device,
337 board->first_card_vendor,
338 board->first_card_device))
339 continue;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000340
Uwe Hermanna7e05482007-05-09 10:17:44 +0000341 if (board->second_vendor) {
342 if (board->second_card_vendor) {
343 if (!pci_card_find(board->second_vendor,
344 board->second_device,
345 board->second_card_vendor,
346 board->second_card_device))
347 continue;
348 } else {
349 if (!pci_dev_find(board->second_vendor,
350 board->second_device))
351 continue;
352 }
353 }
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000354
Uwe Hermanna7e05482007-05-09 10:17:44 +0000355 return board;
356 }
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000357
Uwe Hermanna7e05482007-05-09 10:17:44 +0000358 return NULL;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000359}
360
361/*
362 *
363 */
364int board_flash_enable(char *vendor, char *part)
365{
Uwe Hermanna7e05482007-05-09 10:17:44 +0000366 struct board_pciid_enable *board = NULL;
367 int ret = 0;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000368
Uwe Hermanna7e05482007-05-09 10:17:44 +0000369 if (vendor && part)
370 board = board_match_linuxbios_name(vendor, part);
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000371
Uwe Hermanna7e05482007-05-09 10:17:44 +0000372 if (!board)
373 board = board_match_pci_card_ids();
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000374
Uwe Hermanna7e05482007-05-09 10:17:44 +0000375 if (board) {
376 printf("Found board \"%s\": Enabling flash write... ",
377 board->name);
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000378
Uwe Hermanna7e05482007-05-09 10:17:44 +0000379 ret = board->enable(board->name);
380 if (ret)
381 printf("Failed!\n");
382 else
383 printf("OK.\n");
384 }
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000385
Uwe Hermanna7e05482007-05-09 10:17:44 +0000386 return ret;
Luc Verhaegen8e3a6002007-04-04 22:45:58 +0000387}