1 /*
2  * Copyright (C) 2005 Nokia Corporation
3  * Author: Paul Mundt <paul.mundt@nokia.com>
4  *
5  * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
6  *
7  * Modified from the original mach-omap/omap2/board-generic.c did by Paul
8  * to support the OMAP2+ device tree boards with an unique board file.
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  */
14 #include <linux/io.h>
15 #include <linux/of_irq.h>
16 #include <linux/of_platform.h>
17 #include <linux/irqdomain.h>
18 
19 #include <asm/setup.h>
20 #include <asm/mach/arch.h>
21 #include <asm/system_info.h>
22 
23 #include "common.h"
24 
25 static const struct of_device_id omap_dt_match_table[] __initconst = {
26 	{ .compatible = "simple-bus", },
27 	{ .compatible = "ti,omap-infra", },
28 	{ }
29 };
30 
31 static void __init __maybe_unused omap_generic_init(void)
32 {
33 	pdata_quirks_init(omap_dt_match_table);
34 
35 	omapdss_init_of();
36 	omap_soc_device_init();
37 }
38 
39 #ifdef CONFIG_SOC_OMAP2420
40 static const char *const omap242x_boards_compat[] __initconst = {
41 	"ti,omap2420",
42 	NULL,
43 };
44 
45 DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
46 	.reserve	= omap_reserve,
47 	.map_io		= omap242x_map_io,
48 	.init_early	= omap2420_init_early,
49 	.init_machine	= omap_generic_init,
50 	.init_time	= omap_init_time,
51 	.dt_compat	= omap242x_boards_compat,
52 	.restart	= omap2xxx_restart,
53 MACHINE_END
54 #endif
55 
56 #ifdef CONFIG_SOC_OMAP2430
57 static const char *const omap243x_boards_compat[] __initconst = {
58 	"ti,omap2430",
59 	NULL,
60 };
61 
62 DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
63 	.reserve	= omap_reserve,
64 	.map_io		= omap243x_map_io,
65 	.init_early	= omap2430_init_early,
66 	.init_machine	= omap_generic_init,
67 	.init_time	= omap_init_time,
68 	.dt_compat	= omap243x_boards_compat,
69 	.restart	= omap2xxx_restart,
70 MACHINE_END
71 #endif
72 
73 #ifdef CONFIG_ARCH_OMAP3
74 /* Some boards need board name for legacy userspace in /proc/cpuinfo */
75 static const char *const n900_boards_compat[] __initconst = {
76 	"nokia,omap3-n900",
77 	NULL,
78 };
79 
80 /* Set system_rev from atags */
81 static void __init rx51_set_system_rev(const struct tag *tags)
82 {
83 	const struct tag *tag;
84 
85 	if (tags->hdr.tag != ATAG_CORE)
86 		return;
87 
88 	for_each_tag(tag, tags) {
89 		if (tag->hdr.tag == ATAG_REVISION) {
90 			system_rev = tag->u.revision.rev;
91 			break;
92 		}
93 	}
94 }
95 
96 /* Legacy userspace on Nokia N900 needs ATAGS exported in /proc/atags,
97  * save them while the data is still not overwritten
98  */
99 static void __init rx51_reserve(void)
100 {
101 	const struct tag *tags = (const struct tag *)(PAGE_OFFSET + 0x100);
102 
103 	save_atags(tags);
104 	rx51_set_system_rev(tags);
105 	omap_reserve();
106 }
107 
108 DT_MACHINE_START(OMAP3_N900_DT, "Nokia RX-51 board")
109 	.reserve	= rx51_reserve,
110 	.map_io		= omap3_map_io,
111 	.init_early	= omap3430_init_early,
112 	.init_machine	= omap_generic_init,
113 	.init_late	= omap3_init_late,
114 	.init_time	= omap_init_time,
115 	.dt_compat	= n900_boards_compat,
116 	.restart	= omap3xxx_restart,
117 MACHINE_END
118 
119 /* Generic omap3 boards, most boards can use these */
120 static const char *const omap3_boards_compat[] __initconst = {
121 	"ti,omap3430",
122 	"ti,omap3",
123 	NULL,
124 };
125 
126 DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
127 	.reserve	= omap_reserve,
128 	.map_io		= omap3_map_io,
129 	.init_early	= omap3430_init_early,
130 	.init_machine	= omap_generic_init,
131 	.init_late	= omap3_init_late,
132 	.init_time	= omap_init_time,
133 	.dt_compat	= omap3_boards_compat,
134 	.restart	= omap3xxx_restart,
135 MACHINE_END
136 
137 static const char *const omap36xx_boards_compat[] __initconst = {
138 	"ti,omap3630",
139 	"ti,omap36xx",
140 	NULL,
141 };
142 
143 DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)")
144 	.reserve	= omap_reserve,
145 	.map_io		= omap3_map_io,
146 	.init_early	= omap3630_init_early,
147 	.init_machine	= omap_generic_init,
148 	.init_late	= omap3_init_late,
149 	.init_time	= omap_init_time,
150 	.dt_compat	= omap36xx_boards_compat,
151 	.restart	= omap3xxx_restart,
152 MACHINE_END
153 
154 static const char *const omap3_gp_boards_compat[] __initconst = {
155 	"ti,omap3-beagle",
156 	"timll,omap3-devkit8000",
157 	NULL,
158 };
159 
160 DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)")
161 	.reserve	= omap_reserve,
162 	.map_io		= omap3_map_io,
163 	.init_early	= omap3430_init_early,
164 	.init_machine	= omap_generic_init,
165 	.init_late	= omap3_init_late,
166 	.init_time	= omap3_secure_sync32k_timer_init,
167 	.dt_compat	= omap3_gp_boards_compat,
168 	.restart	= omap3xxx_restart,
169 MACHINE_END
170 
171 static const char *const am3517_boards_compat[] __initconst = {
172 	"ti,am3517",
173 	NULL,
174 };
175 
176 DT_MACHINE_START(AM3517_DT, "Generic AM3517 (Flattened Device Tree)")
177 	.reserve	= omap_reserve,
178 	.map_io		= omap3_map_io,
179 	.init_early	= am35xx_init_early,
180 	.init_machine	= omap_generic_init,
181 	.init_late	= omap3_init_late,
182 	.init_time	= omap3_gptimer_timer_init,
183 	.dt_compat	= am3517_boards_compat,
184 	.restart	= omap3xxx_restart,
185 MACHINE_END
186 #endif
187 
188 #ifdef CONFIG_SOC_TI81XX
189 static const char *const ti814x_boards_compat[] __initconst = {
190 	"ti,dm8148",
191 	"ti,dm814",
192 	NULL,
193 };
194 
195 DT_MACHINE_START(TI814X_DT, "Generic ti814x (Flattened Device Tree)")
196 	.reserve	= omap_reserve,
197 	.map_io		= ti81xx_map_io,
198 	.init_early	= ti814x_init_early,
199 	.init_machine	= omap_generic_init,
200 	.init_late	= ti81xx_init_late,
201 	.init_time	= omap3_gptimer_timer_init,
202 	.dt_compat	= ti814x_boards_compat,
203 	.restart	= ti81xx_restart,
204 MACHINE_END
205 
206 static const char *const ti816x_boards_compat[] __initconst = {
207 	"ti,dm8168",
208 	"ti,dm816",
209 	NULL,
210 };
211 
212 DT_MACHINE_START(TI816X_DT, "Generic ti816x (Flattened Device Tree)")
213 	.reserve	= omap_reserve,
214 	.map_io		= ti81xx_map_io,
215 	.init_early	= ti816x_init_early,
216 	.init_machine	= omap_generic_init,
217 	.init_late	= ti81xx_init_late,
218 	.init_time	= omap3_gptimer_timer_init,
219 	.dt_compat	= ti816x_boards_compat,
220 	.restart	= ti81xx_restart,
221 MACHINE_END
222 #endif
223 
224 #ifdef CONFIG_SOC_AM33XX
225 static const char *const am33xx_boards_compat[] __initconst = {
226 	"ti,am33xx",
227 	NULL,
228 };
229 
230 DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
231 	.reserve	= omap_reserve,
232 	.map_io		= am33xx_map_io,
233 	.init_early	= am33xx_init_early,
234 	.init_machine	= omap_generic_init,
235 	.init_late	= am33xx_init_late,
236 	.init_time	= omap3_gptimer_timer_init,
237 	.dt_compat	= am33xx_boards_compat,
238 	.restart	= am33xx_restart,
239 MACHINE_END
240 #endif
241 
242 #ifdef CONFIG_ARCH_OMAP4
243 static const char *const omap4_boards_compat[] __initconst = {
244 	"ti,omap4460",
245 	"ti,omap4430",
246 	"ti,omap4",
247 	NULL,
248 };
249 
250 DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)")
251 	.l2c_aux_val	= OMAP_L2C_AUX_CTRL,
252 	.l2c_aux_mask	= 0xcf9fffff,
253 	.l2c_write_sec	= omap4_l2c310_write_sec,
254 	.reserve	= omap_reserve,
255 	.smp		= smp_ops(omap4_smp_ops),
256 	.map_io		= omap4_map_io,
257 	.init_early	= omap4430_init_early,
258 	.init_irq	= omap_gic_of_init,
259 	.init_machine	= omap_generic_init,
260 	.init_late	= omap4430_init_late,
261 	.init_time	= omap4_local_timer_init,
262 	.dt_compat	= omap4_boards_compat,
263 	.restart	= omap44xx_restart,
264 MACHINE_END
265 #endif
266 
267 #ifdef CONFIG_SOC_OMAP5
268 static const char *const omap5_boards_compat[] __initconst = {
269 	"ti,omap5432",
270 	"ti,omap5430",
271 	"ti,omap5",
272 	NULL,
273 };
274 
275 DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
276 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
277 	.dma_zone_size	= SZ_2G,
278 #endif
279 	.reserve	= omap_reserve,
280 	.smp		= smp_ops(omap4_smp_ops),
281 	.map_io		= omap5_map_io,
282 	.init_early	= omap5_init_early,
283 	.init_irq	= omap_gic_of_init,
284 	.init_machine	= omap_generic_init,
285 	.init_late	= omap5_init_late,
286 	.init_time	= omap5_realtime_timer_init,
287 	.dt_compat	= omap5_boards_compat,
288 	.restart	= omap44xx_restart,
289 MACHINE_END
290 #endif
291 
292 #ifdef CONFIG_SOC_AM43XX
293 static const char *const am43_boards_compat[] __initconst = {
294 	"ti,am4372",
295 	"ti,am43",
296 	NULL,
297 };
298 
299 DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
300 	.l2c_aux_val	= OMAP_L2C_AUX_CTRL,
301 	.l2c_aux_mask	= 0xcf9fffff,
302 	.l2c_write_sec	= omap4_l2c310_write_sec,
303 	.map_io		= am33xx_map_io,
304 	.init_early	= am43xx_init_early,
305 	.init_late	= am43xx_init_late,
306 	.init_irq	= omap_gic_of_init,
307 	.init_machine	= omap_generic_init,
308 	.init_time	= omap3_gptimer_timer_init,
309 	.dt_compat	= am43_boards_compat,
310 	.restart	= omap44xx_restart,
311 MACHINE_END
312 #endif
313 
314 #ifdef CONFIG_SOC_DRA7XX
315 static const char *const dra74x_boards_compat[] __initconst = {
316 	"ti,dra762",
317 	"ti,am5728",
318 	"ti,am5726",
319 	"ti,dra742",
320 	"ti,dra7",
321 	NULL,
322 };
323 
324 DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)")
325 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
326 	.dma_zone_size	= SZ_2G,
327 #endif
328 	.reserve	= omap_reserve,
329 	.smp		= smp_ops(omap4_smp_ops),
330 	.map_io		= dra7xx_map_io,
331 	.init_early	= dra7xx_init_early,
332 	.init_late	= dra7xx_init_late,
333 	.init_irq	= omap_gic_of_init,
334 	.init_machine	= omap_generic_init,
335 	.init_time	= omap5_realtime_timer_init,
336 	.dt_compat	= dra74x_boards_compat,
337 	.restart	= omap44xx_restart,
338 MACHINE_END
339 
340 static const char *const dra72x_boards_compat[] __initconst = {
341 	"ti,am5718",
342 	"ti,am5716",
343 	"ti,dra722",
344 	"ti,dra718",
345 	NULL,
346 };
347 
348 DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)")
349 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
350 	.dma_zone_size	= SZ_2G,
351 #endif
352 	.reserve	= omap_reserve,
353 	.map_io		= dra7xx_map_io,
354 	.init_early	= dra7xx_init_early,
355 	.init_late	= dra7xx_init_late,
356 	.init_irq	= omap_gic_of_init,
357 	.init_machine	= omap_generic_init,
358 	.init_time	= omap5_realtime_timer_init,
359 	.dt_compat	= dra72x_boards_compat,
360 	.restart	= omap44xx_restart,
361 MACHINE_END
362 #endif
363