summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/board-generic.c
blob: 68e0baad2bbf62753edea18630cbd73286bd28ab (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
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2005 Nokia Corporation
 * Author: Paul Mundt <paul.mundt@nokia.com>
 *
 * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
 *
 * Modified from the original mach-omap/omap2/board-generic.c did by Paul
 * to support the OMAP2+ device tree boards with an unique board file.
 */
#include <linux/io.h>
#include <linux/irqdomain.h>
#include <linux/clocksource.h>
#include <linux/clockchips.h>
#include <linux/mod_devicetable.h>

#include <asm/setup.h>
#include <asm/mach/arch.h>
#include <asm/system_info.h>

#include "common.h"

static const struct of_device_id omap_dt_match_table[] __initconst = {
	{ .compatible = "simple-bus", },
	{ .compatible = "ti,omap-infra", },
	{ }
};

static void __init __maybe_unused omap_generic_init(void)
{
	pdata_quirks_init(omap_dt_match_table);
	omap_soc_device_init();
}

/* Clocks are needed early, see drivers/clocksource for the rest */
static void __init __maybe_unused omap_init_time_of(void)
{
	omap_clk_init();
	timer_probe();
}

/* Used by am437x for ARM timer in non-SMP configurations */
#if !defined(CONFIG_SMP) && defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
void tick_broadcast(const struct cpumask *mask)
{
}
#endif

#ifdef CONFIG_SOC_OMAP2420
static const char *const omap242x_boards_compat[] __initconst = {
	"ti,omap2420",
	NULL,
};

DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap242x_map_io,
	.init_early	= omap2420_init_early,
	.init_machine	= omap_generic_init,
	.init_time	= omap_init_time_of,
	.dt_compat	= omap242x_boards_compat,
	.restart	= omap2xxx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_OMAP2430
static const char *const omap243x_boards_compat[] __initconst = {
	"ti,omap2430",
	NULL,
};

DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap243x_map_io,
	.init_early	= omap2430_init_early,
	.init_machine	= omap_generic_init,
	.init_time	= omap_init_time_of,
	.dt_compat	= omap243x_boards_compat,
	.restart	= omap2xxx_restart,
MACHINE_END
#endif

#ifdef CONFIG_ARCH_OMAP3
/* Some boards need board name for legacy userspace in /proc/cpuinfo */
static const char *const n900_boards_compat[] __initconst = {
	"nokia,omap3-n900",
	NULL,
};

/* Set system_rev from atags */
static void __init rx51_set_system_rev(const struct tag *tags)
{
	const struct tag *tag;

	if (tags->hdr.tag != ATAG_CORE)
		return;

	for_each_tag(tag, tags) {
		if (tag->hdr.tag == ATAG_REVISION) {
			system_rev = tag->u.revision.rev;
			break;
		}
	}
}

/* Legacy userspace on Nokia N900 needs ATAGS exported in /proc/atags,
 * save them while the data is still not overwritten
 */
static void __init rx51_reserve(void)
{
	const struct tag *tags = (const struct tag *)(PAGE_OFFSET + 0x100);

	save_atags(tags);
	rx51_set_system_rev(tags);
	omap_reserve();
}

DT_MACHINE_START(OMAP3_N900_DT, "Nokia RX-51 board")
	.reserve	= rx51_reserve,
	.map_io		= omap3_map_io,
	.init_early	= omap3430_init_early,
	.init_machine	= omap_generic_init,
	.init_late	= omap3_init_late,
	.init_time	= omap_init_time_of,
	.dt_compat	= n900_boards_compat,
	.restart	= omap3xxx_restart,
MACHINE_END

/* Generic omap3 boards, most boards can use these */
static const char *const omap3_boards_compat[] __initconst = {
	"ti,omap3430",
	"ti,omap3",
	NULL,
};

DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap3_map_io,
	.init_early	= omap3430_init_early,
	.init_machine	= omap_generic_init,
	.init_late	= omap3_init_late,
	.init_time	= omap_init_time_of,
	.dt_compat	= omap3_boards_compat,
	.restart	= omap3xxx_restart,
MACHINE_END

static const char *const omap36xx_boards_compat[] __initconst = {
	"ti,omap3630",
	"ti,omap36xx",
	NULL,
};

DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap3_map_io,
	.init_early	= omap3630_init_early,
	.init_machine	= omap_generic_init,
	.init_late	= omap3_init_late,
	.init_time	= omap_init_time_of,
	.dt_compat	= omap36xx_boards_compat,
	.restart	= omap3xxx_restart,
MACHINE_END

static const char *const omap3_gp_boards_compat[] __initconst = {
	"ti,omap3-beagle",
	"timll,omap3-devkit8000",
	NULL,
};

DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap3_map_io,
	.init_early	= omap3430_init_early,
	.init_machine	= omap_generic_init,
	.init_late	= omap3_init_late,
	.init_time	= omap_init_time_of,
	.dt_compat	= omap3_gp_boards_compat,
	.restart	= omap3xxx_restart,
MACHINE_END

static const char *const am3517_boards_compat[] __initconst = {
	"ti,am3517",
	NULL,
};

DT_MACHINE_START(AM3517_DT, "Generic AM3517 (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= omap3_map_io,
	.init_early	= am35xx_init_early,
	.init_machine	= omap_generic_init,
	.init_late	= omap3_init_late,
	.init_time	= omap_init_time_of,
	.dt_compat	= am3517_boards_compat,
	.restart	= omap3xxx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_TI81XX
static const char *const ti814x_boards_compat[] __initconst = {
	"ti,dm8148",
	"ti,dm814",
	NULL,
};

DT_MACHINE_START(TI814X_DT, "Generic ti814x (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= ti81xx_map_io,
	.init_early	= ti814x_init_early,
	.init_machine	= omap_generic_init,
	.init_late	= ti81xx_init_late,
	.init_time	= omap_init_time_of,
	.dt_compat	= ti814x_boards_compat,
	.restart	= ti81xx_restart,
MACHINE_END

static const char *const ti816x_boards_compat[] __initconst = {
	"ti,dm8168",
	"ti,dm816",
	NULL,
};

DT_MACHINE_START(TI816X_DT, "Generic ti816x (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= ti81xx_map_io,
	.init_early	= ti816x_init_early,
	.init_machine	= omap_generic_init,
	.init_late	= ti81xx_init_late,
	.init_time	= omap_init_time_of,
	.dt_compat	= ti816x_boards_compat,
	.restart	= ti81xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_AM33XX
static const char *const am33xx_boards_compat[] __initconst = {
	"ti,am33xx",
	NULL,
};

DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
	.reserve	= omap_reserve,
	.map_io		= am33xx_map_io,
	.init_early	= am33xx_init_early,
	.init_machine	= omap_generic_init,
	.init_late	= am33xx_init_late,
	.init_time	= omap_init_time_of,
	.dt_compat	= am33xx_boards_compat,
	.restart	= am33xx_restart,
	/*
	 * Historically am33xx supported only REBOOT_WARM even though default
	 * reboot_mode was REBOOT_COLD. Reflect legacy de-facto behaviour in
	 * SYSFS.
	 */
	.reboot_mode	= REBOOT_WARM,
MACHINE_END
#endif

#ifdef CONFIG_ARCH_OMAP4
static const char *const omap4_boards_compat[] __initconst = {
	"ti,omap4460",
	"ti,omap4430",
	"ti,omap4",
	NULL,
};

DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)")
	.l2c_aux_val	= OMAP_L2C_AUX_CTRL,
	.l2c_aux_mask	= 0xcf9fffff,
	.l2c_write_sec	= omap4_l2c310_write_sec,
	.reserve	= omap_reserve,
	.smp		= smp_ops(omap4_smp_ops),
	.map_io		= omap4_map_io,
	.init_early	= omap4430_init_early,
	.init_irq	= omap_gic_of_init,
	.init_machine	= omap_generic_init,
	.init_late	= omap4430_init_late,
	.init_time	= omap_init_time_of,
	.dt_compat	= omap4_boards_compat,
	.restart	= omap44xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_OMAP5
static const char *const omap5_boards_compat[] __initconst = {
	"ti,omap5432",
	"ti,omap5430",
	"ti,omap5",
	NULL,
};

DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
	.dma_zone_size	= SZ_2G,
#endif
	.reserve	= omap_reserve,
	.smp		= smp_ops(omap4_smp_ops),
	.map_io		= omap5_map_io,
	.init_early	= omap5_init_early,
	.init_irq	= omap_gic_of_init,
	.init_machine	= omap_generic_init,
	.init_late	= omap5_init_late,
	.init_time	= omap5_realtime_timer_init,
	.dt_compat	= omap5_boards_compat,
	.restart	= omap44xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_AM43XX
static const char *const am43_boards_compat[] __initconst = {
	"ti,am4372",
	"ti,am43",
	NULL,
};

DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
	.l2c_aux_val	= OMAP_L2C_AUX_CTRL,
	.l2c_aux_mask	= 0xcf9fffff,
	.l2c_write_sec	= omap4_l2c310_write_sec,
	.map_io		= am33xx_map_io,
	.init_early	= am43xx_init_early,
	.init_late	= am43xx_init_late,
	.init_irq	= omap_gic_of_init,
	.init_machine	= omap_generic_init,
	.init_time	= omap_init_time_of,
	.dt_compat	= am43_boards_compat,
	.restart	= omap44xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_SOC_DRA7XX
static const char *const dra74x_boards_compat[] __initconst = {
	"ti,dra762",
	"ti,am5728",
	"ti,am5726",
	"ti,dra742",
	"ti,dra7",
	NULL,
};

DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)")
#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
	.dma_zone_size	= SZ_2G,
#endif
	.reserve	= omap_reserve,
	.smp		= smp_ops(omap4_smp_ops),
	.map_io		= dra7xx_map_io,
	.init_early	= dra7xx_init_early,
	.init_late	= dra7xx_init_late,
	.init_irq	= omap_gic_of_init,
	.init_machine	= omap_generic_init,
	.init_time	= omap5_realtime_timer_init,
	.dt_compat	= dra74x_boards_compat,
	.restart	= omap44xx_restart,
MACHINE_END

static const char *const dra72x_boards_compat[] __initconst = {
	"ti,am5718",
	"ti,am5716",
	"ti,dra722",
	"ti,dra718",
	NULL,
};

DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)")
#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
	.dma_zone_size	= SZ_2G,
#endif
	.reserve	= omap_reserve,
	.map_io		= dra7xx_map_io,
	.init_early	= dra7xx_init_early,
	.init_late	= dra7xx_init_late,
	.init_irq	= omap_gic_of_init,
	.init_machine	= omap_generic_init,
	.init_time	= omap5_realtime_timer_init,
	.dt_compat	= dra72x_boards_compat,
	.restart	= omap44xx_restart,
MACHINE_END
#endif