[brcm63xx] more fixes for bcm6338, no need not to prevent reads from MPI registers...
[openwrt/svn-archive/archive.git] / target / linux / brcm63xx / files / arch / mips / bcm63xx / boards / board_bcm963xx.c
1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
7 */
8
9 #include <linux/init.h>
10 #include <linux/kernel.h>
11 #include <linux/string.h>
12 #include <linux/platform_device.h>
13 #include <linux/mtd/mtd.h>
14 #include <linux/mtd/partitions.h>
15 #include <linux/mtd/physmap.h>
16 #include <linux/ssb/ssb.h>
17 #include <asm/addrspace.h>
18 #include <bcm63xx_board.h>
19 #include <bcm63xx_cpu.h>
20 #include <bcm63xx_regs.h>
21 #include <bcm63xx_io.h>
22 #include <bcm63xx_board.h>
23 #include <bcm63xx_dev_pci.h>
24 #include <bcm63xx_dev_uart.h>
25 #include <bcm63xx_dev_wdt.h>
26 #include <bcm63xx_dev_enet.h>
27 #include <bcm63xx_dev_pcmcia.h>
28 #include <bcm63xx_dev_usb_ohci.h>
29 #include <bcm63xx_dev_usb_ehci.h>
30 #include <bcm63xx_dev_usb_udc.h>
31 #include <bcm63xx_dev_spi.h>
32 #include <board_bcm963xx.h>
33
34 #define PFX "board_bcm963xx: "
35
36 static struct bcm963xx_nvram nvram;
37 static unsigned int mac_addr_used = 0;
38 static struct board_info board;
39
40 /*
41 * known 6338 boards
42 */
43
44 #ifdef CONFIG_BCM63XX_CPU_6338
45 static struct board_info __initdata board_96338gw = {
46 .name = "96338GW",
47 .expected_cpu_id = 0x6338,
48
49 .has_enet0 = 1,
50 .enet0 = {
51 .force_speed_100 = 1,
52 .force_duplex_full = 1,
53 },
54
55 .has_ohci0 = 1,
56 };
57
58 static struct board_info __initdata board_96338w = {
59 .name = "96338W",
60 .expected_cpu_id = 0x6338,
61
62 .has_enet0 = 1,
63 .enet0 = {
64 .force_speed_100 = 1,
65 .force_duplex_full = 1,
66 }
67 };
68 #endif
69
70 /*
71 * known 6348 boards
72 */
73 #ifdef CONFIG_BCM63XX_CPU_6348
74 static struct board_info __initdata board_96348r = {
75 .name = "96348R",
76 .expected_cpu_id = 0x6348,
77
78 .has_enet0 = 1,
79 .has_pci = 1,
80
81 .enet0 = {
82 .has_phy = 1,
83 .use_internal_phy = 1,
84 },
85 };
86
87 static struct board_info __initdata board_96348gw_10 = {
88 .name = "96348GW-10",
89 .expected_cpu_id = 0x6348,
90
91 .has_enet0 = 1,
92 .has_enet1 = 1,
93 .has_pci = 1,
94
95 .enet0 = {
96 .has_phy = 1,
97 .use_internal_phy = 1,
98 },
99 .enet1 = {
100 .force_speed_100 = 1,
101 .force_duplex_full = 1,
102 },
103
104 .has_ohci0 = 1,
105 .has_pccard = 1,
106 .has_ehci0 = 1,
107 };
108
109 static struct board_info __initdata board_96348gw_11 = {
110 .name = "96348GW-11",
111 .expected_cpu_id = 0x6348,
112
113 .has_enet0 = 1,
114 .has_enet1 = 1,
115 .has_pci = 1,
116
117 .enet0 = {
118 .has_phy = 1,
119 .use_internal_phy = 1,
120 },
121
122 .enet1 = {
123 .force_speed_100 = 1,
124 .force_duplex_full = 1,
125 },
126
127
128 .has_ohci0 = 1,
129 .has_pccard = 1,
130 .has_ehci0 = 1,
131 };
132
133 static struct board_info __initdata board_96348gw = {
134 .name = "96348GW",
135 .expected_cpu_id = 0x6348,
136
137 .has_enet0 = 1,
138 .has_enet1 = 1,
139 .has_pci = 1,
140
141 .enet0 = {
142 .has_phy = 1,
143 .use_internal_phy = 1,
144 },
145 .enet1 = {
146 .force_speed_100 = 1,
147 .force_duplex_full = 1,
148 },
149
150 .has_ohci0 = 1,
151 };
152
153 static struct board_info __initdata board_FAST2404 = {
154 .name = "F@ST2404",
155 .expected_cpu_id = 0x6348,
156
157 .has_enet0 = 1,
158 .has_enet1 = 1,
159 .has_pci = 1,
160
161 .enet0 = {
162 .has_phy = 1,
163 .use_internal_phy = 1,
164 },
165
166 .enet1 = {
167 .force_speed_100 = 1,
168 .force_duplex_full = 1,
169 },
170
171
172 .has_ohci0 = 1,
173 .has_pccard = 1,
174 .has_ehci0 = 1,
175 };
176
177 static struct board_info __initdata board_DV201AMR = {
178 .name = "DV201AMR",
179 .expected_cpu_id = 0x6348,
180
181 .has_pci = 1,
182 .has_ohci0 = 1,
183 .has_udc0 = 1,
184
185 .has_enet0 = 1,
186 .has_enet1 = 1,
187 .enet0 = {
188 .has_phy = 1,
189 .use_internal_phy = 1,
190 },
191 .enet1 = {
192 .force_speed_100 = 1,
193 .force_duplex_full = 1,
194 },
195 };
196
197 static struct board_info __initdata board_96348gw_a = {
198 .name = "96348GW-A",
199 .expected_cpu_id = 0x6348,
200
201 .has_enet0 = 1,
202 .has_enet1 = 1,
203 .has_pci = 1,
204
205 .enet0 = {
206 .has_phy = 1,
207 .use_internal_phy = 1,
208 },
209 .enet1 = {
210 .force_speed_100 = 1,
211 .force_duplex_full = 1,
212 },
213
214 .has_ohci0 = 1,
215 };
216
217
218 #endif
219
220 /*
221 * known 6358 boards
222 */
223 #ifdef CONFIG_BCM63XX_CPU_6358
224 static struct board_info __initdata board_96358vw = {
225 .name = "96358VW",
226 .expected_cpu_id = 0x6358,
227
228 .has_enet0 = 1,
229 .has_enet1 = 1,
230 .has_pci = 1,
231
232 .enet0 = {
233 .has_phy = 1,
234 .use_internal_phy = 1,
235 },
236
237 .enet1 = {
238 .force_speed_100 = 1,
239 .force_duplex_full = 1,
240 },
241
242
243 .has_ohci0 = 1,
244 .has_pccard = 1,
245 .has_ehci0 = 1,
246 };
247
248 static struct board_info __initdata board_96358vw2 = {
249 .name = "96358VW2",
250 .expected_cpu_id = 0x6358,
251
252 .has_enet0 = 1,
253 .has_enet1 = 1,
254 .has_pci = 1,
255
256 .enet0 = {
257 .has_phy = 1,
258 .use_internal_phy = 1,
259 },
260
261 .enet1 = {
262 .force_speed_100 = 1,
263 .force_duplex_full = 1,
264 },
265
266
267 .has_ohci0 = 1,
268 .has_pccard = 1,
269 .has_ehci0 = 1,
270 };
271
272 static struct board_info __initdata board_AGPFS0 = {
273 .name = "AGPF-S0",
274 .expected_cpu_id = 0x6358,
275
276 .has_enet0 = 1,
277 .has_enet1 = 1,
278 .has_pci = 1,
279
280 .enet0 = {
281 .has_phy = 1,
282 .use_internal_phy = 1,
283 },
284
285 .enet1 = {
286 .force_speed_100 = 1,
287 .force_duplex_full = 1,
288 },
289
290 .has_ohci0 = 1,
291 .has_ehci0 = 1,
292 };
293 #endif
294
295 /*
296 * all boards
297 */
298 static const struct board_info __initdata *bcm963xx_boards[] = {
299 #ifdef CONFIG_BCM63XX_CPU_6338
300 &board_96338gw,
301 &board_96338w,
302 #endif
303 #ifdef CONFIG_BCM63XX_CPU_6348
304 &board_96348r,
305 &board_96348gw,
306 &board_96348gw_10,
307 &board_96348gw_11,
308 &board_FAST2404,
309 &board_DV201AMR,
310 &board_96348gw_a,
311 #endif
312
313 #ifdef CONFIG_BCM63XX_CPU_6358
314 &board_96358vw,
315 &board_96358vw2,
316 &board_AGPFS0,
317 #endif
318 };
319
320 /*
321 * early init callback, read nvram data from flash and checksum it
322 */
323 void __init board_prom_init(void)
324 {
325 unsigned int check_len, i;
326 u8 *boot_addr, *cfe, *p;
327 char cfe_version[32];
328 u32 val;
329
330 /* read base address of boot chip select (0)
331 * 6338/6345 does not have MPI but boots from standard
332 * MIPS Flash address */
333 if (BCMCPU_IS_6345())
334 val = 0x1fc00000;
335 else {
336 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
337 val &= MPI_CSBASE_BASE_MASK;
338 }
339 boot_addr = (u8 *)KSEG1ADDR(val);
340
341 /* dump cfe version */
342 cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
343 if (!memcmp(cfe, "cfe-v", 5))
344 snprintf(cfe_version, sizeof(cfe_version), "%u.%u.%u-%u.%u",
345 cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
346 else
347 strcpy(cfe_version, "unknown");
348 printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
349
350 /* extract nvram data */
351 memcpy(&nvram, boot_addr + BCM963XX_NVRAM_OFFSET, sizeof(nvram));
352
353 /* check checksum before using data */
354 if (nvram.version <= 4)
355 check_len = offsetof(struct bcm963xx_nvram, checksum_old);
356 else
357 check_len = sizeof(nvram);
358 val = 0;
359 p = (u8 *)&nvram;
360 while (check_len--)
361 val += *p;
362 if (val) {
363 printk(KERN_ERR PFX "invalid nvram checksum\n");
364 return;
365 }
366
367 /* find board by name */
368 for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
369 if (strncmp(nvram.name, bcm963xx_boards[i]->name,
370 sizeof(nvram.name)))
371 continue;
372 /* copy, board desc array is marked initdata */
373 memcpy(&board, bcm963xx_boards[i], sizeof(board));
374 break;
375 }
376
377 /* bail out if board is not found, will complain later */
378 if (!board.name[0]) {
379 char name[17];
380 memcpy(name, nvram.name, 16);
381 name[16] = 0;
382 printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
383 name);
384 return;
385 }
386
387 /* setup pin multiplexing depending on board enabled device,
388 * this has to be done this early since PCI init is done
389 * inside arch_initcall */
390 val = 0;
391 #ifdef CONFIG_PCI
392 if (board.has_pci) {
393 bcm63xx_pci_enabled = 1;
394 if (BCMCPU_IS_6348())
395 val |= GPIO_MODE_6348_G2_PCI;
396 }
397 #endif
398 if (board.has_pccard) {
399 if (BCMCPU_IS_6348())
400 val |= GPIO_MODE_6348_G1_MII_PCCARD;
401 }
402
403 if (board.has_enet0 && !board.enet0.use_internal_phy) {
404 if (BCMCPU_IS_6348())
405 val |= GPIO_MODE_6348_G3_EXT_MII |
406 GPIO_MODE_6348_G0_EXT_MII;
407 }
408
409 if (board.has_enet1 && !board.enet1.use_internal_phy) {
410 if (BCMCPU_IS_6348())
411 val |= GPIO_MODE_6348_G3_EXT_MII |
412 GPIO_MODE_6348_G0_EXT_MII;
413 }
414
415 bcm_gpio_writel(val, GPIO_MODE_REG);
416 }
417
418 /*
419 * second stage init callback, good time to panic if we couldn't
420 * identify on which board we're running since early printk is working
421 */
422 void __init board_setup(void)
423 {
424 if (!board.name[0])
425 panic("unable to detect bcm963xx board");
426 printk(KERN_INFO PFX "board name: %s\n", board.name);
427
428 /* make sure we're running on expected cpu */
429 if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
430 panic("unexpected CPU for bcm963xx board");
431 }
432
433 /*
434 * return board name for /proc/cpuinfo
435 */
436 const char *board_get_name(void)
437 {
438 return board.name;
439 }
440
441 /*
442 * register & return a new board mac address
443 */
444 static int board_get_mac_address(u8 *mac)
445 {
446 u8 *p;
447 int count;
448
449 if (mac_addr_used >= nvram.mac_addr_count) {
450 printk(KERN_ERR PFX "not enough mac address\n");
451 return -ENODEV;
452 }
453
454 memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
455 p = mac + ETH_ALEN - 1;
456 count = mac_addr_used;
457
458 while (count--) {
459 do {
460 (*p)++;
461 if (*p != 0)
462 break;
463 p--;
464 } while (p != mac);
465 }
466
467 if (p == mac) {
468 printk(KERN_ERR PFX "unable to fetch mac address\n");
469 return -ENODEV;
470 }
471
472 mac_addr_used++;
473 return 0;
474 }
475
476 static struct resource mtd_resources[] = {
477 {
478 .start = 0, /* filled at runtime */
479 .end = 0, /* filled at runtime */
480 .flags = IORESOURCE_MEM,
481 }
482 };
483
484 static struct platform_device mtd_dev = {
485 .name = "bcm963xx-flash",
486 .resource = mtd_resources,
487 .num_resources = ARRAY_SIZE(mtd_resources),
488 };
489
490 /*
491 * Register a sane SPROMv2 to make the on-board
492 * bcm4318 WLAN work
493 */
494 static struct ssb_sprom bcm63xx_sprom = {
495 .revision = 0x02,
496 .board_rev = 0x17,
497 .country_code = 0x0,
498 .ant_available_bg = 0x3,
499 .pa0b0 = 0x15ae,
500 .pa0b1 = 0xfa85,
501 .pa0b2 = 0xfe8d,
502 .pa1b0 = 0xffff,
503 .pa1b1 = 0xffff,
504 .pa1b2 = 0xffff,
505 .gpio0 = 0xff,
506 .gpio1 = 0xff,
507 .gpio2 = 0xff,
508 .gpio3 = 0xff,
509 .maxpwr_bg = 0x004c,
510 .itssi_bg = 0x00,
511 .boardflags_lo = 0x2848,
512 .boardflags_hi = 0x0000,
513 };
514
515 static struct resource gpiodev_resource = {
516 .start = 0xFFFFFFFF,
517 };
518
519 /*
520 * third stage init callback, register all board devices.
521 */
522 int __init board_register_devices(void)
523 {
524 u32 val;
525
526 bcm63xx_uart_register();
527 bcm63xx_wdt_register();
528 bcm63xx_spi_register();
529
530 if (board.has_pccard)
531 bcm63xx_pcmcia_register();
532
533 if (board.has_enet0 &&
534 !board_get_mac_address(board.enet0.mac_addr))
535 bcm63xx_enet_register(0, &board.enet0);
536
537 if (board.has_enet1 &&
538 !board_get_mac_address(board.enet1.mac_addr))
539 bcm63xx_enet_register(1, &board.enet1);
540
541 if (board.has_ohci0)
542 bcm63xx_ohci_register();
543
544 if (board.has_ehci0)
545 bcm63xx_ehci_register();
546
547 if (board.has_udc0)
548 bcm63xx_udc_register();
549 /* Generate MAC address for WLAN and
550 * register our SPROM */
551 #ifdef CONFIG_PCI
552 if (!board_get_mac_address(bcm63xx_sprom.il0mac)) {
553 memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN);
554 memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
555 if (ssb_arch_set_fallback_sprom(&bcm63xx_sprom) < 0)
556 printk(KERN_ERR "failed to register fallback SPROM\n");
557 }
558 #endif
559
560 /* read base address of boot chip select (0) */
561 if (BCMCPU_IS_6345())
562 val = 0x1fc0000;
563 else {
564 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
565 val &= MPI_CSBASE_BASE_MASK;
566 }
567 mtd_resources[0].start = val;
568 mtd_resources[0].end = 0x1FFFFFFF;
569
570 platform_device_register(&mtd_dev);
571
572 /* Register GPIODEV */
573 platform_device_register_simple("GPIODEV", 0, &gpiodev_resource, 1);
574
575 return 0;
576 }
577