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52d3aff9 DF |
1 | /* |
2 | * Platform device setup for Marvell mv64360/mv64460 host bridges (Discovery) | |
3 | * | |
4 | * Author: Dale Farnsworth <dale@farnsworth.org> | |
5 | * | |
6 | * 2007 (c) MontaVista, Software, Inc. This file is licensed under | |
7 | * the terms of the GNU General Public License version 2. This program | |
8 | * is licensed "as is" without any warranty of any kind, whether express | |
9 | * or implied. | |
10 | */ | |
11 | ||
12 | #include <linux/stddef.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
542c98c0 | 15 | #include <linux/console.h> |
52d3aff9 DF |
16 | #include <linux/mv643xx.h> |
17 | #include <linux/platform_device.h> | |
18 | ||
19 | #include <asm/prom.h> | |
20 | ||
21 | /* | |
22 | * These functions provide the necessary setup for the mv64x60 drivers. | |
23 | * These drivers are unusual in that they work on both the MIPS and PowerPC | |
24 | * architectures. Because of that, the drivers do not support the normal | |
25 | * PowerPC of_platform_bus_type. They support platform_bus_type instead. | |
26 | */ | |
27 | ||
28 | /* | |
29 | * Create MPSC platform devices | |
30 | */ | |
31 | static int __init mv64x60_mpsc_register_shared_pdev(struct device_node *np) | |
32 | { | |
33 | struct platform_device *pdev; | |
34 | struct resource r[2]; | |
35 | struct mpsc_shared_pdata pdata; | |
36 | const phandle *ph; | |
37 | struct device_node *mpscrouting, *mpscintr; | |
38 | int err; | |
39 | ||
40 | ph = of_get_property(np, "mpscrouting", NULL); | |
41 | mpscrouting = of_find_node_by_phandle(*ph); | |
42 | if (!mpscrouting) | |
43 | return -ENODEV; | |
44 | ||
45 | err = of_address_to_resource(mpscrouting, 0, &r[0]); | |
46 | of_node_put(mpscrouting); | |
47 | if (err) | |
48 | return err; | |
49 | ||
50 | ph = of_get_property(np, "mpscintr", NULL); | |
51 | mpscintr = of_find_node_by_phandle(*ph); | |
52 | if (!mpscintr) | |
53 | return -ENODEV; | |
54 | ||
55 | err = of_address_to_resource(mpscintr, 0, &r[1]); | |
56 | of_node_put(mpscintr); | |
57 | if (err) | |
58 | return err; | |
59 | ||
60 | memset(&pdata, 0, sizeof(pdata)); | |
61 | ||
62 | pdev = platform_device_alloc(MPSC_SHARED_NAME, 0); | |
63 | if (!pdev) | |
64 | return -ENOMEM; | |
65 | ||
66 | err = platform_device_add_resources(pdev, r, 2); | |
67 | if (err) | |
68 | goto error; | |
69 | ||
70 | err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); | |
71 | if (err) | |
72 | goto error; | |
73 | ||
74 | err = platform_device_add(pdev); | |
75 | if (err) | |
76 | goto error; | |
77 | ||
78 | return 0; | |
79 | ||
80 | error: | |
81 | platform_device_put(pdev); | |
82 | return err; | |
83 | } | |
84 | ||
85 | ||
86 | static int __init mv64x60_mpsc_device_setup(struct device_node *np, int id) | |
87 | { | |
88 | struct resource r[5]; | |
89 | struct mpsc_pdata pdata; | |
90 | struct platform_device *pdev; | |
91 | const unsigned int *prop; | |
92 | const phandle *ph; | |
93 | struct device_node *sdma, *brg; | |
94 | int err; | |
95 | int port_number; | |
96 | ||
97 | /* only register the shared platform device the first time through */ | |
98 | if (id == 0 && (err = mv64x60_mpsc_register_shared_pdev(np))) | |
99 | return err; | |
100 | ||
101 | memset(r, 0, sizeof(r)); | |
102 | ||
103 | err = of_address_to_resource(np, 0, &r[0]); | |
104 | if (err) | |
105 | return err; | |
106 | ||
107 | of_irq_to_resource(np, 0, &r[4]); | |
108 | ||
109 | ph = of_get_property(np, "sdma", NULL); | |
110 | sdma = of_find_node_by_phandle(*ph); | |
111 | if (!sdma) | |
112 | return -ENODEV; | |
113 | ||
114 | of_irq_to_resource(sdma, 0, &r[3]); | |
115 | err = of_address_to_resource(sdma, 0, &r[1]); | |
116 | of_node_put(sdma); | |
117 | if (err) | |
118 | return err; | |
119 | ||
120 | ph = of_get_property(np, "brg", NULL); | |
121 | brg = of_find_node_by_phandle(*ph); | |
122 | if (!brg) | |
123 | return -ENODEV; | |
124 | ||
125 | err = of_address_to_resource(brg, 0, &r[2]); | |
126 | of_node_put(brg); | |
127 | if (err) | |
128 | return err; | |
129 | ||
130 | prop = of_get_property(np, "block-index", NULL); | |
131 | if (!prop) | |
132 | return -ENODEV; | |
133 | port_number = *(int *)prop; | |
134 | ||
135 | memset(&pdata, 0, sizeof(pdata)); | |
136 | ||
137 | pdata.cache_mgmt = 1; /* All current revs need this set */ | |
138 | ||
139 | prop = of_get_property(np, "max_idle", NULL); | |
140 | if (prop) | |
141 | pdata.max_idle = *prop; | |
142 | ||
143 | prop = of_get_property(brg, "current-speed", NULL); | |
144 | if (prop) | |
145 | pdata.default_baud = *prop; | |
146 | ||
147 | /* Default is 8 bits, no parity, no flow control */ | |
148 | pdata.default_bits = 8; | |
149 | pdata.default_parity = 'n'; | |
150 | pdata.default_flow = 'n'; | |
151 | ||
152 | prop = of_get_property(np, "chr_1", NULL); | |
153 | if (prop) | |
154 | pdata.chr_1_val = *prop; | |
155 | ||
156 | prop = of_get_property(np, "chr_2", NULL); | |
157 | if (prop) | |
158 | pdata.chr_2_val = *prop; | |
159 | ||
160 | prop = of_get_property(np, "chr_10", NULL); | |
161 | if (prop) | |
162 | pdata.chr_10_val = *prop; | |
163 | ||
164 | prop = of_get_property(np, "mpcr", NULL); | |
165 | if (prop) | |
166 | pdata.mpcr_val = *prop; | |
167 | ||
168 | prop = of_get_property(brg, "bcr", NULL); | |
169 | if (prop) | |
170 | pdata.bcr_val = *prop; | |
171 | ||
172 | pdata.brg_can_tune = 1; /* All current revs need this set */ | |
173 | ||
174 | prop = of_get_property(brg, "clock-src", NULL); | |
175 | if (prop) | |
176 | pdata.brg_clk_src = *prop; | |
177 | ||
178 | prop = of_get_property(brg, "clock-frequency", NULL); | |
179 | if (prop) | |
180 | pdata.brg_clk_freq = *prop; | |
181 | ||
182 | pdev = platform_device_alloc(MPSC_CTLR_NAME, port_number); | |
183 | if (!pdev) | |
184 | return -ENOMEM; | |
185 | ||
186 | err = platform_device_add_resources(pdev, r, 5); | |
187 | if (err) | |
188 | goto error; | |
189 | ||
190 | err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); | |
191 | if (err) | |
192 | goto error; | |
193 | ||
194 | err = platform_device_add(pdev); | |
195 | if (err) | |
196 | goto error; | |
197 | ||
198 | return 0; | |
199 | ||
200 | error: | |
201 | platform_device_put(pdev); | |
202 | return err; | |
203 | } | |
204 | ||
649c8e02 DF |
205 | /* |
206 | * Create mv64x60_eth platform devices | |
207 | */ | |
208 | static int __init eth_register_shared_pdev(struct device_node *np) | |
209 | { | |
210 | struct platform_device *pdev; | |
211 | struct resource r[1]; | |
212 | int err; | |
213 | ||
214 | np = of_get_parent(np); | |
215 | if (!np) | |
216 | return -ENODEV; | |
217 | ||
218 | err = of_address_to_resource(np, 0, &r[0]); | |
219 | of_node_put(np); | |
220 | if (err) | |
221 | return err; | |
222 | ||
223 | pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, 0, | |
224 | r, 1); | |
225 | if (IS_ERR(pdev)) | |
226 | return PTR_ERR(pdev); | |
227 | ||
228 | return 0; | |
229 | } | |
230 | ||
231 | static int __init mv64x60_eth_device_setup(struct device_node *np, int id) | |
232 | { | |
233 | struct resource r[1]; | |
234 | struct mv643xx_eth_platform_data pdata; | |
235 | struct platform_device *pdev; | |
236 | struct device_node *phy; | |
237 | const u8 *mac_addr; | |
238 | const int *prop; | |
239 | const phandle *ph; | |
240 | int err; | |
241 | ||
242 | /* only register the shared platform device the first time through */ | |
243 | if (id == 0 && (err = eth_register_shared_pdev(np))) | |
244 | return err;; | |
245 | ||
246 | memset(r, 0, sizeof(r)); | |
247 | of_irq_to_resource(np, 0, &r[0]); | |
248 | ||
249 | memset(&pdata, 0, sizeof(pdata)); | |
250 | ||
251 | prop = of_get_property(np, "block-index", NULL); | |
252 | if (!prop) | |
253 | return -ENODEV; | |
254 | pdata.port_number = *prop; | |
255 | ||
256 | mac_addr = of_get_mac_address(np); | |
257 | if (mac_addr) | |
258 | memcpy(pdata.mac_addr, mac_addr, 6); | |
259 | ||
260 | prop = of_get_property(np, "speed", NULL); | |
261 | if (prop) | |
262 | pdata.speed = *prop; | |
263 | ||
264 | prop = of_get_property(np, "tx_queue_size", NULL); | |
265 | if (prop) | |
266 | pdata.tx_queue_size = *prop; | |
267 | ||
268 | prop = of_get_property(np, "rx_queue_size", NULL); | |
269 | if (prop) | |
270 | pdata.rx_queue_size = *prop; | |
271 | ||
272 | prop = of_get_property(np, "tx_sram_addr", NULL); | |
273 | if (prop) | |
274 | pdata.tx_sram_addr = *prop; | |
275 | ||
276 | prop = of_get_property(np, "tx_sram_size", NULL); | |
277 | if (prop) | |
278 | pdata.tx_sram_size = *prop; | |
279 | ||
280 | prop = of_get_property(np, "rx_sram_addr", NULL); | |
281 | if (prop) | |
282 | pdata.rx_sram_addr = *prop; | |
283 | ||
284 | prop = of_get_property(np, "rx_sram_size", NULL); | |
285 | if (prop) | |
286 | pdata.rx_sram_size = *prop; | |
287 | ||
288 | ph = of_get_property(np, "phy", NULL); | |
289 | if (!ph) | |
290 | return -ENODEV; | |
291 | ||
292 | phy = of_find_node_by_phandle(*ph); | |
293 | if (phy == NULL) | |
294 | return -ENODEV; | |
295 | ||
296 | prop = of_get_property(phy, "reg", NULL); | |
297 | if (prop) { | |
298 | pdata.force_phy_addr = 1; | |
299 | pdata.phy_addr = *prop; | |
300 | } | |
301 | ||
302 | of_node_put(phy); | |
303 | ||
304 | pdev = platform_device_alloc(MV643XX_ETH_NAME, pdata.port_number); | |
305 | if (!pdev) | |
306 | return -ENOMEM; | |
307 | ||
308 | err = platform_device_add_resources(pdev, r, 1); | |
309 | if (err) | |
310 | goto error; | |
311 | ||
312 | err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); | |
313 | if (err) | |
314 | goto error; | |
315 | ||
316 | err = platform_device_add(pdev); | |
317 | if (err) | |
318 | goto error; | |
319 | ||
320 | return 0; | |
321 | ||
322 | error: | |
323 | platform_device_put(pdev); | |
324 | return err; | |
325 | } | |
326 | ||
01f0e78e DF |
327 | /* |
328 | * Create mv64x60_i2c platform devices | |
329 | */ | |
330 | static int __init mv64x60_i2c_device_setup(struct device_node *np, int id) | |
331 | { | |
332 | struct resource r[2]; | |
333 | struct platform_device *pdev; | |
334 | struct mv64xxx_i2c_pdata pdata; | |
335 | const unsigned int *prop; | |
336 | int err; | |
337 | ||
338 | memset(r, 0, sizeof(r)); | |
339 | ||
340 | err = of_address_to_resource(np, 0, &r[0]); | |
341 | if (err) | |
342 | return err; | |
343 | ||
344 | of_irq_to_resource(np, 0, &r[1]); | |
345 | ||
346 | memset(&pdata, 0, sizeof(pdata)); | |
347 | ||
348 | prop = of_get_property(np, "freq_m", NULL); | |
349 | if (!prop) | |
350 | return -ENODEV; | |
351 | pdata.freq_m = *prop; | |
352 | ||
353 | prop = of_get_property(np, "freq_n", NULL); | |
354 | if (!prop) | |
355 | return -ENODEV; | |
356 | pdata.freq_n = *prop; | |
357 | ||
358 | prop = of_get_property(np, "timeout", NULL); | |
359 | if (prop) | |
360 | pdata.timeout = *prop; | |
361 | else | |
362 | pdata.timeout = 1000; /* 1 second */ | |
363 | ||
364 | prop = of_get_property(np, "retries", NULL); | |
365 | if (prop) | |
366 | pdata.retries = *prop; | |
367 | else | |
368 | pdata.retries = 1; | |
369 | ||
370 | pdev = platform_device_alloc(MV64XXX_I2C_CTLR_NAME, id); | |
371 | if (!pdev) | |
372 | return -ENOMEM; | |
373 | ||
374 | err = platform_device_add_resources(pdev, r, 2); | |
375 | if (err) | |
376 | goto error; | |
377 | ||
378 | err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); | |
379 | if (err) | |
380 | goto error; | |
381 | ||
382 | err = platform_device_add(pdev); | |
383 | if (err) | |
384 | goto error; | |
385 | ||
386 | return 0; | |
387 | ||
388 | error: | |
389 | platform_device_put(pdev); | |
390 | return err; | |
391 | } | |
392 | ||
52d3aff9 DF |
393 | static int __init mv64x60_device_setup(void) |
394 | { | |
395 | struct device_node *np = NULL; | |
396 | int id; | |
397 | int err; | |
398 | ||
399 | for (id = 0; | |
400 | (np = of_find_compatible_node(np, "serial", "marvell,mpsc")); id++) | |
401 | if ((err = mv64x60_mpsc_device_setup(np, id))) | |
402 | goto error; | |
403 | ||
649c8e02 DF |
404 | for (id = 0; |
405 | (np = of_find_compatible_node(np, "network", | |
406 | "marvell,mv64x60-eth")); | |
407 | id++) | |
408 | if ((err = mv64x60_eth_device_setup(np, id))) | |
409 | goto error; | |
410 | ||
01f0e78e DF |
411 | for (id = 0; |
412 | (np = of_find_compatible_node(np, "i2c", "marvell,mv64x60-i2c")); | |
413 | id++) | |
414 | if ((err = mv64x60_i2c_device_setup(np, id))) | |
415 | goto error; | |
416 | ||
52d3aff9 DF |
417 | return 0; |
418 | ||
419 | error: | |
420 | of_node_put(np); | |
421 | return err; | |
422 | } | |
423 | arch_initcall(mv64x60_device_setup); | |
542c98c0 MG |
424 | |
425 | static int __init mv64x60_add_mpsc_console(void) | |
426 | { | |
427 | struct device_node *np = NULL; | |
428 | const char *prop; | |
429 | ||
430 | prop = of_get_property(of_chosen, "linux,stdout-path", NULL); | |
431 | if (prop == NULL) | |
432 | goto not_mpsc; | |
433 | ||
434 | np = of_find_node_by_path(prop); | |
435 | if (!np) | |
436 | goto not_mpsc; | |
437 | ||
438 | if (!of_device_is_compatible(np, "marvell,mpsc")) | |
439 | goto not_mpsc; | |
440 | ||
441 | prop = of_get_property(np, "block-index", NULL); | |
442 | if (!prop) | |
443 | goto not_mpsc; | |
444 | ||
445 | add_preferred_console("ttyMM", *(int *)prop, NULL); | |
446 | ||
447 | not_mpsc: | |
448 | return 0; | |
449 | } | |
450 | console_initcall(mv64x60_add_mpsc_console); |