1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2005 Nokia Corporation
4 * Author: Paul Mundt <paul.mundt@nokia.com>
5 *
6 * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
7 *
8 * Modified from the original mach-omap/omap2/board-generic.c did by Paul
9 * to support the OMAP2+ device tree boards with an unique board file.
10 */
11 #include <linux/io.h>
12 #include <linux/irqdomain.h>
13 #include <linux/clocksource.h>
14 #include <linux/clockchips.h>
15 #include <linux/mod_devicetable.h>
16
17 #include <asm/setup.h>
18 #include <asm/mach/arch.h>
19 #include <asm/system_info.h>
20
21 #include "common.h"
22
23 static const struct of_device_id omap_dt_match_table[] __initconst = {
24 { .compatible = "simple-bus", },
25 { .compatible = "ti,omap-infra", },
26 { }
27 };
28
29 static void __init __maybe_unused omap_generic_init(void)
30 {
31 pdata_quirks_init(omap_dt_match_table);
32 omap_soc_device_init();
33 }
34
35 /* Clocks are needed early, see drivers/clocksource for the rest */
36 static void __init __maybe_unused omap_init_time_of(void)
37 {
38 omap_clk_init();
39 timer_probe();
40 }
41
42 /* Used by am437x for ARM timer in non-SMP configurations */
43 #if !defined(CONFIG_SMP) && defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
44 void tick_broadcast(const struct cpumask *mask)
45 {
46 }
47 #endif
48
49 #ifdef CONFIG_SOC_OMAP2420
50 static const char *const omap242x_boards_compat[] __initconst = {
51 "ti,omap2420",
52 NULL,
53 };
54
55 DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
56 .reserve = omap_reserve,
57 .map_io = omap242x_map_io,
58 .init_early = omap2420_init_early,
59 .init_machine = omap_generic_init,
60 .init_time = omap_init_time_of,
61 .dt_compat = omap242x_boards_compat,
62 .restart = omap2xxx_restart,
63 MACHINE_END
64 #endif
65
66 #ifdef CONFIG_SOC_OMAP2430
67 static const char *const omap243x_boards_compat[] __initconst = {
68 "ti,omap2430",
69 NULL,
70 };
71
72 DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
73 .reserve = omap_reserve,
74 .map_io = omap243x_map_io,
75 .init_early = omap2430_init_early,
76 .init_machine = omap_generic_init,
77 .init_time = omap_init_time_of,
78 .dt_compat = omap243x_boards_compat,
79 .restart = omap2xxx_restart,
80 MACHINE_END
81 #endif
82
83 #ifdef CONFIG_ARCH_OMAP3
84 /* Some boards need board name for legacy userspace in /proc/cpuinfo */
85 static const char *const n900_boards_compat[] __initconst = {
86 "nokia,omap3-n900",
87 NULL,
88 };
89
90 /* Set system_rev from atags */
91 static void __init rx51_set_system_rev(const struct tag *tags)
92 {
93 const struct tag *tag;
94
95 if (tags->hdr.tag != ATAG_CORE)
96 return;
97
98 for_each_tag(tag, tags) {
99 if (tag->hdr.tag == ATAG_REVISION) {
100 system_rev = tag->u.revision.rev;
101 break;
102 }
103 }
104 }
105
106 /* Legacy userspace on Nokia N900 needs ATAGS exported in /proc/atags,
107 * save them while the data is still not overwritten
108 */
109 static void __init rx51_reserve(void)
110 {
111 const struct tag *tags = (const struct tag *)(PAGE_OFFSET + 0x100);
112
113 save_atags(tags);
114 rx51_set_system_rev(tags);
115 omap_reserve();
116 }
117
118 DT_MACHINE_START(OMAP3_N900_DT, "Nokia RX-51 board")
119 .reserve = rx51_reserve,
120 .map_io = omap3_map_io,
121 .init_early = omap3430_init_early,
122 .init_machine = omap_generic_init,
123 .init_late = omap3_init_late,
124 .init_time = omap_init_time_of,
125 .dt_compat = n900_boards_compat,
126 .restart = omap3xxx_restart,
127 MACHINE_END
128
129 /* Generic omap3 boards, most boards can use these */
130 static const char *const omap3_boards_compat[] __initconst = {
131 "ti,omap3430",
132 "ti,omap3",
133 NULL,
134 };
135
136 DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
137 .reserve = omap_reserve,
138 .map_io = omap3_map_io,
139 .init_early = omap3430_init_early,
140 .init_machine = omap_generic_init,
141 .init_late = omap3_init_late,
142 .init_time = omap_init_time_of,
143 .dt_compat = omap3_boards_compat,
144 .restart = omap3xxx_restart,
145 MACHINE_END
146
147 static const char *const omap36xx_boards_compat[] __initconst = {
148 "ti,omap3630",
149 "ti,omap36xx",
150 NULL,
151 };
152
153 DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)")
154 .reserve = omap_reserve,
155 .map_io = omap3_map_io,
156 .init_early = omap3630_init_early,
157 .init_machine = omap_generic_init,
158 .init_late = omap3_init_late,
159 .init_time = omap_init_time_of,
160 .dt_compat = omap36xx_boards_compat,
161 .restart = omap3xxx_restart,
162 MACHINE_END
163
164 static const char *const omap3_gp_boards_compat[] __initconst = {
165 "ti,omap3-beagle",
166 "timll,omap3-devkit8000",
167 NULL,
168 };
169
170 DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)")
171 .reserve = omap_reserve,
172 .map_io = omap3_map_io,
173 .init_early = omap3430_init_early,
174 .init_machine = omap_generic_init,
175 .init_late = omap3_init_late,
176 .init_time = omap_init_time_of,
177 .dt_compat = omap3_gp_boards_compat,
178 .restart = omap3xxx_restart,
179 MACHINE_END
180
181 static const char *const am3517_boards_compat[] __initconst = {
182 "ti,am3517",
183 NULL,
184 };
185
186 DT_MACHINE_START(AM3517_DT, "Generic AM3517 (Flattened Device Tree)")
187 .reserve = omap_reserve,
188 .map_io = omap3_map_io,
189 .init_early = am35xx_init_early,
190 .init_machine = omap_generic_init,
191 .init_late = omap3_init_late,
192 .init_time = omap_init_time_of,
193 .dt_compat = am3517_boards_compat,
194 .restart = omap3xxx_restart,
195 MACHINE_END
196 #endif
197
198 #ifdef CONFIG_SOC_TI81XX
199 static const char *const ti814x_boards_compat[] __initconst = {
200 "ti,dm8148",
201 "ti,dm814",
202 NULL,
203 };
204
205 DT_MACHINE_START(TI814X_DT, "Generic ti814x (Flattened Device Tree)")
206 .reserve = omap_reserve,
207 .map_io = ti81xx_map_io,
208 .init_early = ti814x_init_early,
209 .init_machine = omap_generic_init,
210 .init_late = ti81xx_init_late,
211 .init_time = omap_init_time_of,
212 .dt_compat = ti814x_boards_compat,
213 .restart = ti81xx_restart,
214 MACHINE_END
215
216 static const char *const ti816x_boards_compat[] __initconst = {
217 "ti,dm8168",
218 "ti,dm816",
219 NULL,
220 };
221
222 DT_MACHINE_START(TI816X_DT, "Generic ti816x (Flattened Device Tree)")
223 .reserve = omap_reserve,
224 .map_io = ti81xx_map_io,
225 .init_early = ti816x_init_early,
226 .init_machine = omap_generic_init,
227 .init_late = ti81xx_init_late,
228 .init_time = omap_init_time_of,
229 .dt_compat = ti816x_boards_compat,
230 .restart = ti81xx_restart,
231 MACHINE_END
232 #endif
233
234 #ifdef CONFIG_SOC_AM33XX
235 static const char *const am33xx_boards_compat[] __initconst = {
236 "ti,am33xx",
237 NULL,
238 };
239
240 DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
241 .reserve = omap_reserve,
242 .map_io = am33xx_map_io,
243 .init_early = am33xx_init_early,
244 .init_machine = omap_generic_init,
245 .init_late = am33xx_init_late,
246 .init_time = omap_init_time_of,
247 .dt_compat = am33xx_boards_compat,
248 .restart = am33xx_restart,
249 /*
250 * Historically am33xx supported only REBOOT_WARM even though default
251 * reboot_mode was REBOOT_COLD. Reflect legacy de-facto behaviour in
252 * SYSFS.
253 */
254 .reboot_mode = REBOOT_WARM,
255 MACHINE_END
256 #endif
257
258 #ifdef CONFIG_ARCH_OMAP4
259 static const char *const omap4_boards_compat[] __initconst = {
260 "ti,omap4460",
261 "ti,omap4430",
262 "ti,omap4",
263 NULL,
264 };
265
266 DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)")
267 .l2c_aux_val = OMAP_L2C_AUX_CTRL,
268 .l2c_aux_mask = 0xcf9fffff,
269 .l2c_write_sec = omap4_l2c310_write_sec,
270 .reserve = omap_reserve,
271 .smp = smp_ops(omap4_smp_ops),
272 .map_io = omap4_map_io,
273 .init_early = omap4430_init_early,
274 .init_irq = omap_gic_of_init,
275 .init_machine = omap_generic_init,
276 .init_late = omap4430_init_late,
277 .init_time = omap_init_time_of,
278 .dt_compat = omap4_boards_compat,
279 .restart = omap44xx_restart,
280 MACHINE_END
281 #endif
282
283 #ifdef CONFIG_SOC_OMAP5
284 static const char *const omap5_boards_compat[] __initconst = {
285 "ti,omap5432",
286 "ti,omap5430",
287 "ti,omap5",
288 NULL,
289 };
290
291 DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
292 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
293 .dma_zone_size = SZ_2G,
294 #endif
295 .reserve = omap_reserve,
296 .smp = smp_ops(omap4_smp_ops),
297 .map_io = omap5_map_io,
298 .init_early = omap5_init_early,
299 .init_irq = omap_gic_of_init,
300 .init_machine = omap_generic_init,
301 .init_late = omap5_init_late,
302 .init_time = omap5_realtime_timer_init,
303 .dt_compat = omap5_boards_compat,
304 .restart = omap44xx_restart,
305 MACHINE_END
306 #endif
307
308 #ifdef CONFIG_SOC_AM43XX
309 static const char *const am43_boards_compat[] __initconst = {
310 "ti,am4372",
311 "ti,am43",
312 NULL,
313 };
314
315 DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
316 .l2c_aux_val = OMAP_L2C_AUX_CTRL,
317 .l2c_aux_mask = 0xcf9fffff,
318 .l2c_write_sec = omap4_l2c310_write_sec,
319 .map_io = am33xx_map_io,
320 .init_early = am43xx_init_early,
321 .init_late = am43xx_init_late,
322 .init_irq = omap_gic_of_init,
323 .init_machine = omap_generic_init,
324 .init_time = omap_init_time_of,
325 .dt_compat = am43_boards_compat,
326 .restart = omap44xx_restart,
327 MACHINE_END
328 #endif
329
330 #ifdef CONFIG_SOC_DRA7XX
331 static const char *const dra74x_boards_compat[] __initconst = {
332 "ti,dra762",
333 "ti,am5728",
334 "ti,am5726",
335 "ti,dra742",
336 "ti,dra7",
337 NULL,
338 };
339
340 DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)")
341 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
342 .dma_zone_size = SZ_2G,
343 #endif
344 .reserve = omap_reserve,
345 .smp = smp_ops(omap4_smp_ops),
346 .map_io = dra7xx_map_io,
347 .init_early = dra7xx_init_early,
348 .init_late = dra7xx_init_late,
349 .init_irq = omap_gic_of_init,
350 .init_machine = omap_generic_init,
351 .init_time = omap5_realtime_timer_init,
352 .dt_compat = dra74x_boards_compat,
353 .restart = omap44xx_restart,
354 MACHINE_END
355
356 static const char *const dra72x_boards_compat[] __initconst = {
357 "ti,am5718",
358 "ti,am5716",
359 "ti,dra722",
360 "ti,dra718",
361 NULL,
362 };
363
364 DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)")
365 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
366 .dma_zone_size = SZ_2G,
367 #endif
368 .reserve = omap_reserve,
369 .map_io = dra7xx_map_io,
370 .init_early = dra7xx_init_early,
371 .init_late = dra7xx_init_late,
372 .init_irq = omap_gic_of_init,
373 .init_machine = omap_generic_init,
374 .init_time = omap5_realtime_timer_init,
375 .dt_compat = dra72x_boards_compat,
376 .restart = omap44xx_restart,
377 MACHINE_END
378 #endif
379
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