summaryrefslogtreecommitdiff
path: root/arch/powerpc/cpu/mpc8xxx/fdt.c
blob: 284709428d9c5c6907b43ac0a8b7e8e8bb183cb0 (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
/*
 * Copyright 2009-2012 Freescale Semiconductor, Inc.
 *
 * This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
 * arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
 * cpu specific common code for 85xx/86xx processors.
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <asm/mp.h>
#include <asm/fsl_serdes.h>
#include <phy.h>
#include <hwconfig.h>

#define FSL_MAX_NUM_USB_CTRLS	2

#if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx))
static int ft_del_cpuhandle(void *blob, int cpuhandle)
{
	int off, ret = -FDT_ERR_NOTFOUND;

	/* if we find a match, we'll delete at it which point the offsets are
	 * invalid so we start over from the beginning
	 */
	off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
						&cpuhandle, 4);
	while (off != -FDT_ERR_NOTFOUND) {
		fdt_delprop(blob, off, "cpu-handle");
		ret = 1;
		off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
				&cpuhandle, 4);
	}

	return ret;
}

void ft_fixup_num_cores(void *blob) {
	int off, num_cores, del_cores;

	del_cores = 0;
	num_cores = cpu_numcores();

	off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
	while (off != -FDT_ERR_NOTFOUND) {
		u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
		u32 phys_cpu_id = thread_to_core(*reg);

		if (!is_core_valid(phys_cpu_id) || is_core_disabled(phys_cpu_id)) {
			int ph = fdt_get_phandle(blob, off);

			/* Delete the cpu node once there are no cpu handles */
			if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) {
				fdt_del_node(blob, off);
				del_cores++;
			}
			/* either we deleted some cpu handles or the cpu node
			 * so we reset the offset back to the start since we
			 * can't trust the offsets anymore
			 */
			off = -1;
		}
		off = fdt_node_offset_by_prop_value(blob, off,
				"device_type", "cpu", 4);
	}
	debug ("%x core system found\n", num_cores);
	debug ("deleted %d extra core entry entries from device tree\n",
								del_cores);
}
#endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */

#if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB)
static int fdt_fixup_usb_mode_phy_type(void *blob, const char *mode,
				const char *phy_type, int start_offset)
{
	const char *compat_dr = "fsl-usb2-dr";
	const char *compat_mph = "fsl-usb2-mph";
	const char *prop_mode = "dr_mode";
	const char *prop_type = "phy_type";
	const char *node_type = NULL;
	int node_offset;
	int err;

	node_offset = fdt_node_offset_by_compatible(blob,
			start_offset, compat_mph);
	if (node_offset < 0) {
		node_offset = fdt_node_offset_by_compatible(blob,
			start_offset, compat_dr);
		if (node_offset < 0) {
			printf("WARNING: could not find compatible"
				" node %s or %s: %s.\n", compat_mph,
				compat_dr, fdt_strerror(node_offset));
			return -1;
		} else
			node_type = compat_dr;
	} else
		node_type = compat_mph;

	if (mode) {
		err = fdt_setprop(blob, node_offset, prop_mode, mode,
				  strlen(mode) + 1);
		if (err < 0)
			printf("WARNING: could not set %s for %s: %s.\n",
			       prop_mode, node_type, fdt_strerror(err));
	}

	if (phy_type) {
		err = fdt_setprop(blob, node_offset, prop_type, phy_type,
				  strlen(phy_type) + 1);
		if (err < 0)
			printf("WARNING: could not set %s for %s: %s.\n",
			       prop_type, node_type, fdt_strerror(err));
	}

	return node_offset;
}

void fdt_fixup_dr_usb(void *blob, bd_t *bd)
{
	const char *modes[] = { "host", "peripheral", "otg" };
	const char *phys[] = { "ulpi", "utmi" };
	const char *mode = NULL;
	const char *phy_type = NULL;
	const char *dr_mode_type = NULL;
	const char *dr_phy_type = NULL;
	char usb1_defined = 0;
	int usb_mode_off = -1;
	int usb_phy_off = -1;
	char str[5];
	int i, j;

	for (i = 1; i <= FSL_MAX_NUM_USB_CTRLS; i++) {
		int mode_idx = -1, phy_idx = -1;
		snprintf(str, 5, "%s%d", "usb", i);
		if (hwconfig(str)) {
			for (j = 0; j < ARRAY_SIZE(modes); j++) {
				if (hwconfig_subarg_cmp(str, "dr_mode",
						modes[j])) {
					mode_idx = j;
					break;
				}
			}

			for (j = 0; j < ARRAY_SIZE(phys); j++) {
				if (hwconfig_subarg_cmp(str, "phy_type",
						phys[j])) {
					phy_idx = j;
					break;
				}
			}

			dr_mode_type = modes[mode_idx];
			dr_phy_type = phys[phy_idx];

			/* use usb_dr_mode and usb_phy_type if
			   usb1_defined = 0; these variables are to
			   be deprecated */
			if (!strcmp(str, "usb1"))
				usb1_defined = 1;

			if (mode_idx < 0 && phy_idx < 0) {
				printf("WARNING: invalid phy or mode\n");
				return;
			}
		}

		usb_mode_off = fdt_fixup_usb_mode_phy_type(blob,
			dr_mode_type, NULL, usb_mode_off);

		if (usb_mode_off < 0)
			return;

		usb_phy_off = fdt_fixup_usb_mode_phy_type(blob,
			NULL, dr_phy_type, usb_phy_off);

		if (usb_phy_off < 0)
			return;
	}

	if (!usb1_defined) {
		int usb_off = -1;
		mode = getenv("usb_dr_mode");
		phy_type = getenv("usb_phy_type");
		if (mode || phy_type) {
			printf("WARNING: usb_dr_mode and usb_phy_type "
				"are to be deprecated soon. Use "
				"hwconfig to set these values instead!!\n");
			fdt_fixup_usb_mode_phy_type(blob, mode,
				phy_type, usb_off);
		}
	}
}
#endif /* defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) */

/*
 * update crypto node properties to a specified revision of the SEC
 * called with sec_rev == 0 if not on an E processor
 */
#if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */
void fdt_fixup_crypto_node(void *blob, int sec_rev)
{
	static const struct sec_rev_prop {
		u32 sec_rev;
		u32 num_channels;
		u32 channel_fifo_len;
		u32 exec_units_mask;
		u32 descriptor_types_mask;
	} sec_rev_prop_list [] = {
		{ 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */
		{ 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */
		{ 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */
		{ 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */
		{ 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */
		{ 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */
		{ 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */
	};
	static char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) *
				   sizeof("fsl,secX.Y")];
	int crypto_node, sec_idx, err;
	char *p;
	u32 val;

	/* locate crypto node based on lowest common compatible */
	crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0");
	if (crypto_node == -FDT_ERR_NOTFOUND)
		return;

	/* delete it if not on an E-processor */
	if (crypto_node > 0 && !sec_rev) {
		fdt_del_node(blob, crypto_node);
		return;
	}

	/* else we got called for possible uprev */
	for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++)
		if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev)
			break;

	if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) {
		puts("warning: unknown SEC revision number\n");
		return;
	}

	val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels);
	err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4);
	if (err < 0)
		printf("WARNING: could not set crypto property: %s\n",
		       fdt_strerror(err));

	val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask);
	err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4);
	if (err < 0)
		printf("WARNING: could not set crypto property: %s\n",
		       fdt_strerror(err));

	val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask);
	err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4);
	if (err < 0)
		printf("WARNING: could not set crypto property: %s\n",
		       fdt_strerror(err));

	val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len);
	err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4);
	if (err < 0)
		printf("WARNING: could not set crypto property: %s\n",
		       fdt_strerror(err));

	val = 0;
	while (sec_idx >= 0) {
		p = compat_strlist + val;
		val += sprintf(p, "fsl,sec%d.%d",
			(sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8,
			sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1;
		sec_idx--;
	}
	err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val);
	if (err < 0)
		printf("WARNING: could not set crypto property: %s\n",
		       fdt_strerror(err));
}
#elif CONFIG_SYS_FSL_SEC_COMPAT >= 4  /* SEC4 */
static u8 caam_get_era(void)
{
	static const struct {
		u16 ip_id;
		u8 maj_rev;
		u8 era;
	} caam_eras[] = {
		{0x0A10, 1, 1},
		{0x0A10, 2, 2},
		{0x0A12, 1, 3},
		{0x0A14, 1, 3},
		{0x0A14, 2, 4},
		{0x0A16, 1, 4},
		{0x0A10, 3, 4},
		{0x0A11, 1, 4},
		{0x0A18, 1, 4},
		{0x0A11, 2, 5},
		{0x0A12, 2, 5},
		{0x0A13, 1, 5},
		{0x0A1C, 1, 5}
	};

	ccsr_sec_t __iomem *sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR;
	u32 secvid_ms = in_be32(&sec->secvid_ms);
	u32 ccbvid = in_be32(&sec->ccbvid);
	u16 ip_id = (secvid_ms & SEC_SECVID_MS_IPID_MASK) >>
				SEC_SECVID_MS_IPID_SHIFT;
	u8 maj_rev = (secvid_ms & SEC_SECVID_MS_MAJ_REV_MASK) >>
				SEC_SECVID_MS_MAJ_REV_SHIFT;
	u8 era = (ccbvid & SEC_CCBVID_ERA_MASK) >> SEC_CCBVID_ERA_SHIFT;

	int i;

	if (era)	/* This is '0' prior to CAAM ERA-6 */
		return era;

	for (i = 0; i < ARRAY_SIZE(caam_eras); i++)
		if (caam_eras[i].ip_id == ip_id &&
		    caam_eras[i].maj_rev == maj_rev)
			return caam_eras[i].era;

	return 0;
}

static void fdt_fixup_crypto_era(void *blob, u32 era)
{
	int err;
	int crypto_node;

	crypto_node = fdt_path_offset(blob, "crypto");
	if (crypto_node < 0) {
		printf("WARNING: Missing crypto node\n");
		return;
	}

	err = fdt_setprop(blob, crypto_node, "fsl,sec-era", &era,
			  sizeof(era));
	if (err < 0) {
		printf("ERROR: could not set fsl,sec-era property: %s\n",
		       fdt_strerror(err));
	}
}

void fdt_fixup_crypto_node(void *blob, int sec_rev)
{
	u8 era;

	if (!sec_rev) {
		fdt_del_node_and_alias(blob, "crypto");
		return;
	}

	/* Add SEC ERA information in compatible */
	era = caam_get_era();
	if (era) {
		fdt_fixup_crypto_era(blob, era);
	} else {
		printf("WARNING: Unable to get ERA for CAAM rev: %d\n",
			sec_rev);
	}
}
#endif

int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc)
{
	return fdt_setprop_string(blob, offset, "phy-connection-type",
					 phy_string_for_interface(phyc));
}

#ifdef CONFIG_SYS_SRIO
static inline void ft_disable_srio_port(void *blob, int srio_off, int port)
{
	int off = fdt_node_offset_by_prop_value(blob, srio_off,
			"cell-index", &port, 4);
	if (off >= 0) {
		off = fdt_setprop_string(blob, off, "status", "disabled");
		if (off > 0)
			printf("WARNING unable to set status for fsl,srio "
				"port %d: %s\n", port, fdt_strerror(off));
	}
}

static inline void ft_disable_rman(void *blob)
{
	int off = fdt_node_offset_by_compatible(blob, -1, "fsl,rman");
	if (off >= 0) {
		off = fdt_setprop_string(blob, off, "status", "disabled");
		if (off > 0)
			printf("WARNING unable to set status for fsl,rman %s\n",
				fdt_strerror(off));
	}
}

static inline void ft_disable_rmu(void *blob)
{
	int off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio-rmu");
	if (off >= 0) {
		off = fdt_setprop_string(blob, off, "status", "disabled");
		if (off > 0)
			printf("WARNING unable to set status for "
				"fsl,srio-rmu %s\n", fdt_strerror(off));
	}
}

void ft_srio_setup(void *blob)
{
	int srio1_used = 0, srio2_used = 0;
	int srio_off;

	/* search for srio node, if doesn't exist just return - nothing todo */
	srio_off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio");
	if (srio_off < 0)
		return ;

#ifdef CONFIG_SRIO1
	if (is_serdes_configured(SRIO1))
		srio1_used = 1;
#endif
#ifdef CONFIG_SRIO2
	if (is_serdes_configured(SRIO2))
		srio2_used = 1;
#endif

	/* mark port1 disabled */
	if (!srio1_used)
		ft_disable_srio_port(blob, srio_off, 1);

	/* mark port2 disabled */
	if (!srio2_used)
		ft_disable_srio_port(blob, srio_off, 2);

	/* if both ports not used, disable controller, rmu and rman */
	if (!srio1_used && !srio2_used) {
		fdt_setprop_string(blob, srio_off, "status", "disabled");

		ft_disable_rman(blob);
		ft_disable_rmu(blob);
	}
}
#endif