summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-at91/setup.c
blob: 030b8a2c58a7582c12dec2e85dc9e4269af78ffd (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
/*
 * Copyright (C) 2007 Atmel Corporation.
 * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
 *
 * Under GPLv2
 */

#include <common.h>
#include <io.h>
#include <init.h>

#include <mach/hardware.h>
#include <mach/cpu.h>
#include <mach/at91_dbgu.h>

#include "soc.h"
#include "generic.h"

struct at91_init_soc __initdata at91_boot_soc;

struct at91_socinfo at91_soc_initdata;
EXPORT_SYMBOL(at91_soc_initdata);

void __init at91rm9200_set_type(int type)
{
	if (type == ARCH_REVISON_9200_PQFP)
		at91_soc_initdata.subtype = AT91_SOC_RM9200_PQFP;
	else
		at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA;

	pr_info("AT91: filled in soc subtype: %s\n",
		at91_get_soc_subtype(&at91_soc_initdata));
}

static void __init soc_detect(u32 dbgu_base)
{
	u32 cidr, socid;

	cidr = __raw_readl(dbgu_base + AT91_DBGU_CIDR);
	socid = cidr & ~AT91_CIDR_VERSION;

	/* sub version of soc */
	at91_soc_initdata.exid = __raw_readl(dbgu_base + AT91_DBGU_EXID);

	switch (socid) {
	case ARCH_ID_AT91RM9200:
		at91_soc_initdata.type = AT91_SOC_RM9200;
		if (at91_soc_initdata.subtype == AT91_SOC_SUBTYPE_NONE)
			at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA;
		at91_boot_soc = at91rm9200_soc;
		break;

	case ARCH_ID_AT91SAM9260:
		at91_soc_initdata.type = AT91_SOC_SAM9260;
		at91_boot_soc = at91sam9260_soc;
		break;

	case ARCH_ID_AT91SAM9261:
		at91_soc_initdata.type = AT91_SOC_SAM9261;
		at91_boot_soc = at91sam9261_soc;
		break;

	case ARCH_ID_AT91SAM9263:
		at91_soc_initdata.type = AT91_SOC_SAM9263;
		at91_boot_soc = at91sam9263_soc;
		break;

	case ARCH_ID_AT91SAM9G20:
		at91_soc_initdata.type = AT91_SOC_SAM9G20;
		at91_boot_soc = at91sam9260_soc;
		break;

	case ARCH_ID_AT91SAM9G45:
		at91_soc_initdata.type = AT91_SOC_SAM9G45;
		if (cidr == ARCH_ID_AT91SAM9G45ES)
			at91_soc_initdata.subtype = AT91_SOC_SAM9G45ES;
		at91_boot_soc = at91sam9g45_soc;
		break;

	case ARCH_ID_AT91SAM9RL64:
		at91_soc_initdata.type = AT91_SOC_SAM9RL;
		at91_boot_soc = at91sam9rl_soc;
		break;

	case ARCH_ID_AT91SAM9X5:
		at91_soc_initdata.type = AT91_SOC_SAM9X5;
		at91_boot_soc = at91sam9x5_soc;
		break;

	case ARCH_ID_AT91SAM9N12:
		at91_soc_initdata.type = AT91_SOC_SAM9N12;
		at91_boot_soc = at91sam9n12_soc;
		break;

	case ARCH_ID_SAMA5:
		if (at91_soc_initdata.exid & ARCH_EXID_SAMA5D3) {
			at91_soc_initdata.type = AT91_SOC_SAMA5D3;
			at91_boot_soc = at91sama5d3_soc;
		} else {
			if (at91_soc_initdata.exid & ARCH_EXID_SAMA5D4) {
				at91_soc_initdata.type = AT91_SOC_SAMA5D4;
				at91_boot_soc = at91sama5d4_soc;
			}
		}
		break;
	}

	/* at91sam9g10 */
	if ((socid & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) {
		at91_soc_initdata.type = AT91_SOC_SAM9G10;
		at91_boot_soc = at91sam9261_soc;
	}
	/* at91sam9xe */
	else if ((cidr & AT91_CIDR_ARCH) == ARCH_FAMILY_AT91SAM9XE) {
		at91_soc_initdata.type = AT91_SOC_SAM9260;
		at91_soc_initdata.subtype = AT91_SOC_SAM9XE;
		at91_boot_soc = at91sam9260_soc;
	}

	if (!at91_soc_is_detected())
		return;

	at91_soc_initdata.cidr = cidr;

	if (at91_soc_initdata.type == AT91_SOC_SAM9G45) {
		switch (at91_soc_initdata.exid) {
		case ARCH_EXID_AT91SAM9M10:
			at91_soc_initdata.subtype = AT91_SOC_SAM9M10;
			break;
		case ARCH_EXID_AT91SAM9G46:
			at91_soc_initdata.subtype = AT91_SOC_SAM9G46;
			break;
		case ARCH_EXID_AT91SAM9M11:
			at91_soc_initdata.subtype = AT91_SOC_SAM9M11;
			break;
		}
	}

	if (at91_soc_initdata.type == AT91_SOC_SAM9X5) {
		switch (at91_soc_initdata.exid) {
		case ARCH_EXID_AT91SAM9G15:
			at91_soc_initdata.subtype = AT91_SOC_SAM9G15;
			break;
		case ARCH_EXID_AT91SAM9G35:
			at91_soc_initdata.subtype = AT91_SOC_SAM9G35;
			break;
		case ARCH_EXID_AT91SAM9X35:
			at91_soc_initdata.subtype = AT91_SOC_SAM9X35;
			break;
		case ARCH_EXID_AT91SAM9G25:
			at91_soc_initdata.subtype = AT91_SOC_SAM9G25;
			break;
		case ARCH_EXID_AT91SAM9X25:
			at91_soc_initdata.subtype = AT91_SOC_SAM9X25;
			break;
		}
	}

	if (at91_soc_initdata.type == AT91_SOC_SAMA5D3) {
		switch (at91_soc_initdata.exid) {
		case ARCH_EXID_SAMA5D31:
			at91_soc_initdata.subtype = AT91_SOC_SAMA5D31;
			break;
		case ARCH_EXID_SAMA5D33:
			at91_soc_initdata.subtype = AT91_SOC_SAMA5D33;
			break;
		case ARCH_EXID_SAMA5D34:
			at91_soc_initdata.subtype = AT91_SOC_SAMA5D34;
			break;
		case ARCH_EXID_SAMA5D35:
			at91_soc_initdata.subtype = AT91_SOC_SAMA5D35;
			break;
		case ARCH_EXID_SAMA5D36:
			at91_soc_initdata.subtype = AT91_SOC_SAMA5D36;
			break;
		}
	}

	if (at91_soc_initdata.type == AT91_SOC_SAMA5D4) {
		switch (at91_soc_initdata.exid) {
		case ARCH_EXID_SAMA5D41:
			at91_soc_initdata.subtype = AT91_SOC_SAMA5D41;
			break;
		case ARCH_EXID_SAMA5D42:
			at91_soc_initdata.subtype = AT91_SOC_SAMA5D42;
			break;
		case ARCH_EXID_SAMA5D43:
			at91_soc_initdata.subtype = AT91_SOC_SAMA5D43;
			break;
		case ARCH_EXID_SAMA5D44:
			at91_soc_initdata.subtype = AT91_SOC_SAMA5D44;
			break;
		}
	}
}

static const char *soc_name[] = {
	[AT91_SOC_RM9200]	= "at91rm9200",
	[AT91_SOC_SAM9260]	= "at91sam9260",
	[AT91_SOC_SAM9261]	= "at91sam9261",
	[AT91_SOC_SAM9263]	= "at91sam9263",
	[AT91_SOC_SAM9G10]	= "at91sam9g10",
	[AT91_SOC_SAM9G20]	= "at91sam9g20",
	[AT91_SOC_SAM9G45]	= "at91sam9g45",
	[AT91_SOC_SAM9RL]	= "at91sam9rl",
	[AT91_SOC_SAM9X5]	= "at91sam9x5",
	[AT91_SOC_SAM9N12]	= "at91sam9n12",
	[AT91_SOC_SAMA5D3]	= "sama5d3",
	[AT91_SOC_SAMA5D4]	= "sama5d4",
	[AT91_SOC_NONE]		= "Unknown"
};

const char *at91_get_soc_type(struct at91_socinfo *c)
{
	return soc_name[c->type];
}
EXPORT_SYMBOL(at91_get_soc_type);

static const char *soc_subtype_name[] = {
	[AT91_SOC_RM9200_BGA]	= "at91rm9200 BGA",
	[AT91_SOC_RM9200_PQFP]	= "at91rm9200 PQFP",
	[AT91_SOC_SAM9XE]	= "at91sam9xe",
	[AT91_SOC_SAM9G45ES]	= "at91sam9g45es",
	[AT91_SOC_SAM9M10]	= "at91sam9m10",
	[AT91_SOC_SAM9G46]	= "at91sam9g46",
	[AT91_SOC_SAM9M11]	= "at91sam9m11",
	[AT91_SOC_SAM9G15]	= "at91sam9g15",
	[AT91_SOC_SAM9G35]	= "at91sam9g35",
	[AT91_SOC_SAM9X35]	= "at91sam9x35",
	[AT91_SOC_SAM9G25]	= "at91sam9g25",
	[AT91_SOC_SAM9X25]	= "at91sam9x25",
	[AT91_SOC_SAMA5D31]	= "sama5d31",
	[AT91_SOC_SAMA5D33]	= "sama5d33",
	[AT91_SOC_SAMA5D34]	= "sama5d34",
	[AT91_SOC_SAMA5D35]	= "sama5d35",
	[AT91_SOC_SAMA5D36]	= "sama5d36",
	[AT91_SOC_SAMA5D41]	= "sama5d41",
	[AT91_SOC_SAMA5D42]	= "sama5d42",
	[AT91_SOC_SAMA5D43]	= "sama5d43",
	[AT91_SOC_SAMA5D44]	= "sama5d44",
	[AT91_SOC_SUBTYPE_NONE]	= "Unknown"
};

const char *at91_get_soc_subtype(struct at91_socinfo *c)
{
	return soc_subtype_name[c->subtype];
}
EXPORT_SYMBOL(at91_get_soc_subtype);

static int at91_detect(void)
{
	at91_soc_initdata.type = AT91_SOC_NONE;
	at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE;

	soc_detect(AT91_BASE_DBGU0);
	if (!at91_soc_is_detected())
		soc_detect(AT91_BASE_DBGU1);
	if (!at91_soc_is_detected())
		soc_detect(AT91_BASE_DBGU2);

	if (!at91_soc_is_detected())
		panic("AT91: Impossible to detect the SOC type");

	pr_info("AT91: Detected soc type: %s\n",
		at91_get_soc_type(&at91_soc_initdata));
	pr_info("AT91: Detected soc subtype: %s\n",
		at91_get_soc_subtype(&at91_soc_initdata));

	if (!at91_soc_is_enabled())
		panic("AT91: Soc not enabled");

	/* Init clock subsystem */
	at91_clock_init();

	if (at91_boot_soc.init)
		at91_boot_soc.init();

	return 0;
}
postcore_initcall(at91_detect);

static int at91_soc_device(void)
{
	struct device_d *dev;

	dev = add_generic_device_res("soc", DEVICE_ID_SINGLE, NULL, 0, NULL);
	dev_add_param_fixed(dev, "name", (char*)at91_get_soc_type(&at91_soc_initdata));
	dev_add_param_fixed(dev, "subname", (char*)at91_get_soc_subtype(&at91_soc_initdata));

	return 0;
}
coredevice_initcall(at91_soc_device);