7dd77f00823f788440574b2e0e4a4301294fe331
[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 <asm/addrspace.h>
17 #include <bcm63xx_board.h>
18 #include <bcm63xx_cpu.h>
19 #include <bcm63xx_regs.h>
20 #include <bcm63xx_io.h>
21 #include <bcm63xx_board.h>
22 #include <bcm63xx_dev_pci.h>
23 #include <bcm63xx_dev_uart.h>
24 #include <bcm63xx_dev_wdt.h>
25 #include <bcm63xx_dev_enet.h>
26 #include <bcm63xx_dev_pcmcia.h>
27 #include <bcm63xx_dev_usb_ohci.h>
28 #include <bcm63xx_dev_usb_ehci.h>
29 #include <board_bcm963xx.h>
30
31 #define PFX "board_bcm963xx: "
32
33 static struct bcm963xx_nvram nvram;
34 static unsigned int mac_addr_used = 0;
35 static struct board_info board;
36
37 /*
38 * known 6338 boards
39 */
40
41 #ifdef CONFIG_BCM63XX_CPU_6338
42 static struct board_info __initdata board_96338gw = {
43 .name = "96338GW",
44 .expected_cpu_id = 0x6338,
45
46 .has_enet0 = 1,
47 .enet0 = {
48 .has_phy = 1,
49 .use_internal_phy = 1,
50 },
51
52 .has_ohci0 = 1,
53 };
54 #endif
55
56 /*
57 * known 6348 boards
58 */
59 #ifdef CONFIG_BCM63XX_CPU_6348
60 static struct board_info __initdata board_96348r = {
61 .name = "96348R",
62 .expected_cpu_id = 0x6348,
63
64 .has_enet0 = 1,
65 .has_pci = 1,
66
67 .enet0 = {
68 .has_phy = 1,
69 .use_internal_phy = 1,
70 },
71 };
72
73 static struct board_info __initdata board_96348gw_10 = {
74 .name = "96348GW-10",
75 .expected_cpu_id = 0x6348,
76
77 .has_enet0 = 1,
78 .has_enet1 = 1,
79 .has_pci = 1,
80
81 .enet0 = {
82 .has_phy = 1,
83 .use_internal_phy = 1,
84 },
85 .enet1 = {
86 .force_speed_100 = 1,
87 .force_duplex_full = 1,
88 },
89
90 .has_ohci0 = 1,
91 .has_pccard = 1,
92 .has_ehci0 = 1,
93 };
94
95 static struct board_info __initdata board_96348gw_11 = {
96 .name = "96348GW-11",
97 .expected_cpu_id = 0x6348,
98
99 .has_enet0 = 1,
100 .has_enet1 = 1,
101 .has_pci = 1,
102
103 .enet0 = {
104 .has_phy = 1,
105 .use_internal_phy = 1,
106 },
107
108 .enet1 = {
109 .force_speed_100 = 1,
110 .force_duplex_full = 1,
111 },
112
113
114 .has_ohci0 = 1,
115 .has_pccard = 1,
116 .has_ehci0 = 1,
117 };
118
119 static struct board_info __initdata board_96348gw = {
120 .name = "96348GW",
121 .expected_cpu_id = 0x6348,
122
123 .has_enet0 = 1,
124 .has_enet1 = 1,
125 .has_pci = 1,
126
127 .enet0 = {
128 .has_phy = 1,
129 .use_internal_phy = 1,
130 },
131 .enet1 = {
132 .force_speed_100 = 1,
133 .force_duplex_full = 1,
134 },
135
136 .has_ohci0 = 1,
137 };
138
139 static struct board_info __initdata board_FAST2404 = {
140 .name = "F@ST2404",
141 .expected_cpu_id = 0x6348,
142
143 .has_enet0 = 1,
144 .has_enet1 = 1,
145 .has_pci = 1,
146
147 .enet0 = {
148 .has_phy = 1,
149 .use_internal_phy = 1,
150 },
151
152 .enet1 = {
153 .force_speed_100 = 1,
154 .force_duplex_full = 1,
155 },
156
157
158 .has_ohci0 = 1,
159 .has_pccard = 1,
160 .has_ehci0 = 1,
161 };
162
163 static struct board_info __initdata board_DV201AMR = {
164 .name = "DV201AMR",
165 .expected_cpu_id = 0x6348,
166
167 .has_enet0 = 1,
168 .has_enet1 = 1,
169 .has_pci = 1,
170
171 .enet0 = {
172 .has_phy = 1,
173 .use_internal_phy = 1,
174 },
175
176 .enet1 = {
177 .force_speed_100 = 1,
178 .force_duplex_full = 1,
179 },
180
181
182 .has_ohci0 = 1,
183 .has_pccard = 1,
184 .has_ehci0 = 1,
185 };
186
187 #endif
188
189 /*
190 * known 6358 boards
191 */
192 #ifdef CONFIG_BCM63XX_CPU_6358
193 static struct board_info __initdata board_96358vw = {
194 .name = "96358VW",
195 .expected_cpu_id = 0x6358,
196
197 .has_enet0 = 1,
198 .has_enet1 = 1,
199 .has_pci = 1,
200
201 .enet0 = {
202 .has_phy = 1,
203 .use_internal_phy = 1,
204 },
205
206 .enet1 = {
207 .force_speed_100 = 1,
208 .force_duplex_full = 1,
209 },
210
211
212 .has_ohci0 = 1,
213 .has_pccard = 1,
214 .has_ehci0 = 1,
215 };
216
217 static struct board_info __initdata board_96358vw2 = {
218 .name = "96358VW2",
219 .expected_cpu_id = 0x6358,
220
221 .has_enet0 = 1,
222 .has_enet1 = 1,
223 .has_pci = 1,
224
225 .enet0 = {
226 .has_phy = 1,
227 .use_internal_phy = 1,
228 },
229
230 .enet1 = {
231 .force_speed_100 = 1,
232 .force_duplex_full = 1,
233 },
234
235
236 .has_ohci0 = 1,
237 .has_pccard = 1,
238 .has_ehci0 = 1,
239 };
240 #endif
241
242 /*
243 * all boards
244 */
245 static const struct board_info __initdata *bcm963xx_boards[] = {
246 #ifdef CONFIG_BCM63XX_CPU_6338
247 &board_96338gw,
248 #endif
249 #ifdef CONFIG_BCM63XX_CPU_6348
250 &board_96348r,
251 &board_96348gw,
252 &board_96348gw_10,
253 &board_96348gw_11,
254 &board_FAST2404,
255 &board_DV201AMR,
256 #endif
257
258 #ifdef CONFIG_BCM63XX_CPU_6358
259 &board_96358vw,
260 &board_96358vw2,
261 #endif
262 };
263
264 /*
265 * early init callback, read nvram data from flash and checksum it
266 */
267 void __init board_prom_init(void)
268 {
269 unsigned int check_len, i;
270 u8 *boot_addr, *cfe, *p;
271 char cfe_version[32];
272 u32 val;
273
274 /* read base address of boot chip select (0) */
275 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
276 val &= MPI_CSBASE_BASE_MASK;
277 boot_addr = (u8 *)KSEG1ADDR(val);
278
279 /* dump cfe version */
280 cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
281 if (!memcmp(cfe, "cfe-v", 5))
282 snprintf(cfe_version, sizeof(cfe_version), "%u.%u.%u-%u.%u",
283 cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
284 else
285 strcpy(cfe_version, "unknown");
286 printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
287
288 /* extract nvram data */
289 memcpy(&nvram, boot_addr + BCM963XX_NVRAM_OFFSET, sizeof(nvram));
290
291 /* check checksum before using data */
292 if (nvram.version <= 4)
293 check_len = offsetof(struct bcm963xx_nvram, checksum_old);
294 else
295 check_len = sizeof(nvram);
296 val = 0;
297 p = (u8 *)&nvram;
298 while (check_len--)
299 val += *p;
300 if (val) {
301 printk(KERN_ERR PFX "invalid nvram checksum\n");
302 return;
303 }
304
305 /* find board by name */
306 for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
307 if (strncmp(nvram.name, bcm963xx_boards[i]->name,
308 sizeof(nvram.name)))
309 continue;
310 /* copy, board desc array is marked initdata */
311 memcpy(&board, bcm963xx_boards[i], sizeof(board));
312 break;
313 }
314
315 /* bail out if board is not found, will complain later */
316 if (!board.name[0]) {
317 char name[17];
318 memcpy(name, nvram.name, 16);
319 name[16] = 0;
320 printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
321 name);
322 return;
323 }
324
325 /* setup pin multiplexing depending on board enabled device,
326 * this has to be done this early since PCI init is done
327 * inside arch_initcall */
328 val = 0;
329
330 if (board.has_pci) {
331 bcm63xx_pci_enabled = 1;
332 if (BCMCPU_IS_6348())
333 val |= GPIO_MODE_6348_G2_PCI;
334 }
335
336 if (board.has_pccard) {
337 if (BCMCPU_IS_6348())
338 val |= GPIO_MODE_6348_G1_MII_PCCARD;
339 }
340
341 if (board.has_enet0 && !board.enet0.use_internal_phy) {
342 if (BCMCPU_IS_6348())
343 val |= GPIO_MODE_6348_G3_EXT_MII |
344 GPIO_MODE_6348_G0_EXT_MII;
345 }
346
347 if (board.has_enet1 && !board.enet1.use_internal_phy) {
348 if (BCMCPU_IS_6348())
349 val |= GPIO_MODE_6348_G3_EXT_MII |
350 GPIO_MODE_6348_G0_EXT_MII;
351 }
352
353 bcm_gpio_writel(val, GPIO_MODE_REG);
354 }
355
356 /*
357 * second stage init callback, good time to panic if we couldn't
358 * identify on which board we're running since early printk is working
359 */
360 void __init board_setup(void)
361 {
362 if (!board.name[0])
363 panic("unable to detect bcm963xx board");
364 printk(KERN_INFO PFX "board name: %s\n", board.name);
365
366 /* make sure we're running on expected cpu */
367 if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
368 panic("unexpected CPU for bcm963xx board");
369 }
370
371 /*
372 * return board name for /proc/cpuinfo
373 */
374 const char *board_get_name(void)
375 {
376 return board.name;
377 }
378
379 /*
380 * register & return a new board mac address
381 */
382 static int board_get_mac_address(u8 *mac)
383 {
384 u8 *p;
385 int count;
386
387 if (mac_addr_used >= nvram.mac_addr_count) {
388 printk(KERN_ERR PFX "not enough mac address\n");
389 return -ENODEV;
390 }
391
392 memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
393 p = mac + ETH_ALEN - 1;
394 count = mac_addr_used;
395
396 while (count--) {
397 do {
398 (*p)++;
399 if (*p != 0)
400 break;
401 p--;
402 } while (p != mac);
403 }
404
405 if (p == mac) {
406 printk(KERN_ERR PFX "unable to fetch mac address\n");
407 return -ENODEV;
408 }
409
410 mac_addr_used++;
411 return 0;
412 }
413
414 static struct resource mtd_resources[] = {
415 {
416 .start = 0, /* filled at runtime */
417 .end = 0, /* filled at runtime */
418 .flags = IORESOURCE_MEM,
419 }
420 };
421
422 static struct platform_device mtd_dev = {
423 .name = "bcm963xx-flash",
424 .resource = mtd_resources,
425 .num_resources = ARRAY_SIZE(mtd_resources),
426 };
427
428 /*
429 * third stage init callback, register all board devices.
430 */
431 int __init board_register_devices(void)
432 {
433 u32 val;
434
435 bcm63xx_uart_register();
436 bcm63xx_wdt_register();
437
438 if (board.has_pccard)
439 bcm63xx_pcmcia_register();
440
441 if (board.has_enet0 &&
442 !board_get_mac_address(board.enet0.mac_addr))
443 bcm63xx_enet_register(0, &board.enet0);
444
445 if (board.has_enet1 &&
446 !board_get_mac_address(board.enet1.mac_addr))
447 bcm63xx_enet_register(1, &board.enet1);
448
449 if (board.has_ohci0)
450 bcm63xx_ohci_register();
451
452 if (board.has_ehci0)
453 bcm63xx_ehci_register();
454
455
456 /* read base address of boot chip select (0) */
457 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
458 val &= MPI_CSBASE_BASE_MASK;
459 mtd_resources[0].start = val;
460 mtd_resources[0].end = 0x1FFFFFFF;
461
462 platform_device_register(&mtd_dev);
463
464 return 0;
465 }
466