aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/sysdev/fsl_soc.c
blob: ef10bcf2d94387e6a0fdc3291289cf877be0ca90 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
/*
 * FSL SoC setup code
 *
 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/major.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>

#include <asm/system.h>
#include <asm/atomic.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/prom.h>
#include <sysdev/fsl_soc.h>
#include <mm/mmu_decl.h>

static phys_addr_t immrbase = -1;

phys_addr_t get_immrbase(void)
{
	struct device_node *soc;

	if (immrbase != -1)
		return immrbase;

	soc = of_find_node_by_type(NULL, "soc");
	if (soc) {
		unsigned int size;
		void *prop = get_property(soc, "reg", &size);
		immrbase = of_translate_address(soc, prop);
		of_node_put(soc);
	};

	return immrbase;
}

EXPORT_SYMBOL(get_immrbase);

static int __init gfar_mdio_of_init(void)
{
	struct device_node *np;
	unsigned int i;
	struct platform_device *mdio_dev;
	struct resource res;
	int ret;

	for (np = NULL, i = 0;
	     (np = of_find_compatible_node(np, "mdio", "gianfar")) != NULL;
	     i++) {
		int k;
		struct device_node *child = NULL;
		struct gianfar_mdio_data mdio_data;

		memset(&res, 0, sizeof(res));
		memset(&mdio_data, 0, sizeof(mdio_data));

		ret = of_address_to_resource(np, 0, &res);
		if (ret)
			goto err;

		mdio_dev =
		    platform_device_register_simple("fsl-gianfar_mdio",
						    res.start, &res, 1);
		if (IS_ERR(mdio_dev)) {
			ret = PTR_ERR(mdio_dev);
			goto err;
		}

		for (k = 0; k < 32; k++)
			mdio_data.irq[k] = -1;

		while ((child = of_get_next_child(np, child)) != NULL) {
			u32 *id = get_property(child, "reg", NULL);
			mdio_data.irq[*id] = irq_of_parse_and_map(child, 0);
		}

		ret =
		    platform_device_add_data(mdio_dev, &mdio_data,
					     sizeof(struct gianfar_mdio_data));
		if (ret)
			goto unreg;
	}

	return 0;

unreg:
	platform_device_unregister(mdio_dev);
err:
	return ret;
}

arch_initcall(gfar_mdio_of_init);

static const char *gfar_tx_intr = "tx";
static const char *gfar_rx_intr = "rx";
static const char *gfar_err_intr = "error";

static int __init gfar_of_init(void)
{
	struct device_node *np;
	unsigned int i;
	struct platform_device *gfar_dev;
	struct resource res;
	int ret;

	for (np = NULL, i = 0;
	     (np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
	     i++) {
		struct resource r[4];
		struct device_node *phy, *mdio;
		struct gianfar_platform_data gfar_data;
		unsigned int *id;
		char *model;
		void *mac_addr;
		phandle *ph;
		int n_res = 1;

		memset(r, 0, sizeof(r));
		memset(&gfar_data, 0, sizeof(gfar_data));

		ret = of_address_to_resource(np, 0, &r[0]);
		if (ret)
			goto err;

		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
		r[1].flags = IORESOURCE_IRQ;

		model = get_property(np, "model", NULL);

		/* If we aren't the FEC we have multiple interrupts */
		if (model && strcasecmp(model, "FEC")) {
			r[1].name = gfar_tx_intr;

			r[2].name = gfar_rx_intr;
			r[2].start = r[2].end = irq_of_parse_and_map(np, 1);
			r[2].flags = IORESOURCE_IRQ;

			r[3].name = gfar_err_intr;
			r[3].start = r[3].end = irq_of_parse_and_map(np, 2);
			r[3].flags = IORESOURCE_IRQ;

			n_res += 2;
		}

		gfar_dev =
		    platform_device_register_simple("fsl-gianfar", i, &r[0],
						    n_res + 1);

		if (IS_ERR(gfar_dev)) {
			ret = PTR_ERR(gfar_dev);
			goto err;
		}

		mac_addr = get_property(np, "local-mac-address", NULL);
		if (mac_addr == NULL)
			mac_addr = get_property(np, "mac-address", NULL);
		if (mac_addr == NULL) {
			/* Obsolete */
			mac_addr = get_property(np, "address", NULL);
		}

		if (mac_addr)
			memcpy(gfar_data.mac_addr, mac_addr, 6);

		if (model && !strcasecmp(model, "TSEC"))
			gfar_data.device_flags =
			    FSL_GIANFAR_DEV_HAS_GIGABIT |
			    FSL_GIANFAR_DEV_HAS_COALESCE |
			    FSL_GIANFAR_DEV_HAS_RMON |
			    FSL_GIANFAR_DEV_HAS_MULTI_INTR;
		if (model && !strcasecmp(model, "eTSEC"))
			gfar_data.device_flags =
			    FSL_GIANFAR_DEV_HAS_GIGABIT |
			    FSL_GIANFAR_DEV_HAS_COALESCE |
			    FSL_GIANFAR_DEV_HAS_RMON |
			    FSL_GIANFAR_DEV_HAS_MULTI_INTR |
			    FSL_GIANFAR_DEV_HAS_CSUM |
			    FSL_GIANFAR_DEV_HAS_VLAN |
			    FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;

		ph = (phandle *) get_property(np, "phy-handle", NULL);
		phy = of_find_node_by_phandle(*ph);

		if (phy == NULL) {
			ret = -ENODEV;
			goto unreg;
		}

		mdio = of_get_parent(phy);

		id = (u32 *) get_property(phy, "reg", NULL);
		ret = of_address_to_resource(mdio, 0, &res);
		if (ret) {
			of_node_put(phy);
			of_node_put(mdio);
			goto unreg;
		}

		gfar_data.phy_id = *id;
		gfar_data.bus_id = res.start;

		of_node_put(phy);
		of_node_put(mdio);

		ret =
		    platform_device_add_data(gfar_dev, &gfar_data,
					     sizeof(struct
						    gianfar_platform_data));
		if (ret)
			goto unreg;
	}

	return 0;

unreg:
	platform_device_unregister(gfar_dev);
err:
	return ret;
}

arch_initcall(gfar_of_init);

static int __init fsl_i2c_of_init(void)
{
	struct device_node *np;
	unsigned int i;
	struct platform_device *i2c_dev;
	int ret;

	for (np = NULL, i = 0;
	     (np = of_find_compatible_node(np, "i2c", "fsl-i2c")) != NULL;
	     i++) {
		struct resource r[2];
		struct fsl_i2c_platform_data i2c_data;
		unsigned char *flags = NULL;

		memset(&r, 0, sizeof(r));
		memset(&i2c_data, 0, sizeof(i2c_data));

		ret = of_address_to_resource(np, 0, &r[0]);
		if (ret)
			goto err;

		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
		r[1].flags = IORESOURCE_IRQ;

		i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
		if (IS_ERR(i2c_dev)) {
			ret = PTR_ERR(i2c_dev);
			goto err;
		}

		i2c_data.device_flags = 0;
		flags = get_property(np, "dfsrr", NULL);
		if (flags)
			i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;

		flags = get_property(np, "fsl5200-clocking", NULL);
		if (flags)
			i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;

		ret =
		    platform_device_add_data(i2c_dev, &i2c_data,
					     sizeof(struct
						    fsl_i2c_platform_data));
		if (ret)
			goto unreg;
	}

	return 0;

unreg:
	platform_device_unregister(i2c_dev);
err:
	return ret;
}

arch_initcall(fsl_i2c_of_init);

#ifdef CONFIG_PPC_83xx
static int __init mpc83xx_wdt_init(void)
{
	struct resource r;
	struct device_node *soc, *np;
	struct platform_device *dev;
	unsigned int *freq;
	int ret;

	np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");

	if (!np) {
		ret = -ENODEV;
		goto nodev;
	}

	soc = of_find_node_by_type(NULL, "soc");

	if (!soc) {
		ret = -ENODEV;
		goto nosoc;
	}

	freq = (unsigned int *)get_property(soc, "bus-frequency", NULL);
	if (!freq) {
		ret = -ENODEV;
		goto err;
	}

	memset(&r, 0, sizeof(r));

	ret = of_address_to_resource(np, 0, &r);
	if (ret)
		goto err;

	dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
	if (IS_ERR(dev)) {
		ret = PTR_ERR(dev);
		goto err;
	}

	ret = platform_device_add_data(dev, freq, sizeof(int));
	if (ret)
		goto unreg;

	of_node_put(soc);
	of_node_put(np);

	return 0;

unreg:
	platform_device_unregister(dev);
err:
	of_node_put(soc);
nosoc:
	of_node_put(np);
nodev:
	return ret;
}

arch_initcall(mpc83xx_wdt_init);
#endif

static enum fsl_usb2_phy_modes determine_usb_phy(char * phy_type)
{
	if (!phy_type)
		return FSL_USB2_PHY_NONE;
	if (!strcasecmp(phy_type, "ulpi"))
		return FSL_USB2_PHY_ULPI;
	if (!strcasecmp(phy_type, "utmi"))
		return FSL_USB2_PHY_UTMI;
	if (!strcasecmp(phy_type, "utmi_wide"))
		return FSL_USB2_PHY_UTMI_WIDE;
	if (!strcasecmp(phy_type, "serial"))
		return FSL_USB2_PHY_SERIAL;

	return FSL_USB2_PHY_NONE;
}

static int __init fsl_usb_of_init(void)
{
	struct device_node *np;
	unsigned int i;
	struct platform_device *usb_dev_mph = NULL, *usb_dev_dr = NULL;
	int ret;

	for (np = NULL, i = 0;
	     (np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL;
	     i++) {
		struct resource r[2];
		struct fsl_usb2_platform_data usb_data;
		unsigned char *prop = NULL;

		memset(&r, 0, sizeof(r));
		memset(&usb_data, 0, sizeof(usb_data));

		ret = of_address_to_resource(np, 0, &r[0]);
		if (ret)
			goto err;

		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
		r[1].flags = IORESOURCE_IRQ;

		usb_dev_mph =
		    platform_device_register_simple("fsl-ehci", i, r, 2);
		if (IS_ERR(usb_dev_mph)) {
			ret = PTR_ERR(usb_dev_mph);
			goto err;
		}

		usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
		usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;

		usb_data.operating_mode = FSL_USB2_MPH_HOST;

		prop = get_property(np, "port0", NULL);
		if (prop)
			usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;

		prop = get_property(np, "port1", NULL);
		if (prop)
			usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;

		prop = get_property(np, "phy_type", NULL);
		usb_data.phy_mode = determine_usb_phy(prop);

		ret =
		    platform_device_add_data(usb_dev_mph, &usb_data,
					     sizeof(struct
						    fsl_usb2_platform_data));
		if (ret)
			goto unreg_mph;
	}

	for (np = NULL;
	     (np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL;
	     i++) {
		struct resource r[2];
		struct fsl_usb2_platform_data usb_data;
		unsigned char *prop = NULL;

		memset(&r, 0, sizeof(r));
		memset(&usb_data, 0, sizeof(usb_data));

		ret = of_address_to_resource(np, 0, &r[0]);
		if (ret)
			goto unreg_mph;

		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
		r[1].flags = IORESOURCE_IRQ;

		usb_dev_dr =
		    platform_device_register_simple("fsl-ehci", i, r, 2);
		if (IS_ERR(usb_dev_dr)) {
			ret = PTR_ERR(usb_dev_dr);
			goto err;
		}

		usb_dev_dr->dev.coherent_dma_mask = 0xffffffffUL;
		usb_dev_dr->dev.dma_mask = &usb_dev_dr->dev.coherent_dma_mask;

		usb_data.operating_mode = FSL_USB2_DR_HOST;

		prop = get_property(np, "phy_type", NULL);
		usb_data.phy_mode = determine_usb_phy(prop);

		ret =
		    platform_device_add_data(usb_dev_dr, &usb_data,
					     sizeof(struct
						    fsl_usb2_platform_data));
		if (ret)
			goto unreg_dr;
	}
	return 0;

unreg_dr:
	if (usb_dev_dr)
		platform_device_unregister(usb_dev_dr);
unreg_mph:
	if (usb_dev_mph)
		platform_device_unregister(usb_dev_mph);
err:
	return ret;
}

arch_initcall(fsl_usb_of_init);