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