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7f627f03 MD |
1 | /* |
2 | * Emma Mobile EV2 processor support | |
3 | * | |
4 | * Copyright (C) 2012 Magnus Damm | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; version 2 of the License. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/interrupt.h> | |
22 | #include <linux/irq.h> | |
23 | #include <linux/platform_device.h> | |
088efd92 | 24 | #include <linux/platform_data/gpio-em.h> |
3d5de271 | 25 | #include <linux/of_platform.h> |
7f627f03 MD |
26 | #include <linux/delay.h> |
27 | #include <linux/input.h> | |
28 | #include <linux/io.h> | |
3d5de271 | 29 | #include <linux/of_irq.h> |
7f627f03 MD |
30 | #include <mach/hardware.h> |
31 | #include <mach/common.h> | |
32 | #include <mach/emev2.h> | |
33 | #include <mach/irqs.h> | |
34 | #include <asm/mach-types.h> | |
35 | #include <asm/mach/arch.h> | |
36 | #include <asm/mach/map.h> | |
37 | #include <asm/mach/time.h> | |
38 | #include <asm/hardware/gic.h> | |
39 | ||
bd5a875d MD |
40 | static struct map_desc emev2_io_desc[] __initdata = { |
41 | #ifdef CONFIG_SMP | |
42 | /* 128K entity map for 0xe0100000 (SMU) */ | |
43 | { | |
44 | .virtual = 0xe0100000, | |
45 | .pfn = __phys_to_pfn(0xe0100000), | |
46 | .length = SZ_128K, | |
47 | .type = MT_DEVICE | |
48 | }, | |
49 | /* 2M mapping for SCU + L2 controller */ | |
50 | { | |
51 | .virtual = 0xf0000000, | |
52 | .pfn = __phys_to_pfn(0x1e000000), | |
53 | .length = SZ_2M, | |
54 | .type = MT_DEVICE | |
55 | }, | |
56 | #endif | |
57 | }; | |
58 | ||
59 | void __init emev2_map_io(void) | |
60 | { | |
61 | iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc)); | |
62 | } | |
63 | ||
7f627f03 MD |
64 | /* UART */ |
65 | static struct resource uart0_resources[] = { | |
66 | [0] = { | |
67 | .start = 0xe1020000, | |
68 | .end = 0xe1020037, | |
69 | .flags = IORESOURCE_MEM, | |
70 | }, | |
71 | [1] = { | |
72 | .start = 40, | |
73 | .flags = IORESOURCE_IRQ, | |
74 | } | |
75 | }; | |
76 | ||
77 | static struct platform_device uart0_device = { | |
78 | .name = "serial8250-em", | |
79 | .id = 0, | |
80 | .num_resources = ARRAY_SIZE(uart0_resources), | |
81 | .resource = uart0_resources, | |
82 | }; | |
83 | ||
84 | static struct resource uart1_resources[] = { | |
85 | [0] = { | |
86 | .start = 0xe1030000, | |
87 | .end = 0xe1030037, | |
88 | .flags = IORESOURCE_MEM, | |
89 | }, | |
90 | [1] = { | |
91 | .start = 41, | |
92 | .flags = IORESOURCE_IRQ, | |
93 | } | |
94 | }; | |
95 | ||
96 | static struct platform_device uart1_device = { | |
97 | .name = "serial8250-em", | |
98 | .id = 1, | |
99 | .num_resources = ARRAY_SIZE(uart1_resources), | |
100 | .resource = uart1_resources, | |
101 | }; | |
102 | ||
103 | static struct resource uart2_resources[] = { | |
104 | [0] = { | |
105 | .start = 0xe1040000, | |
106 | .end = 0xe1040037, | |
107 | .flags = IORESOURCE_MEM, | |
108 | }, | |
109 | [1] = { | |
110 | .start = 42, | |
111 | .flags = IORESOURCE_IRQ, | |
112 | } | |
113 | }; | |
114 | ||
115 | static struct platform_device uart2_device = { | |
116 | .name = "serial8250-em", | |
117 | .id = 2, | |
118 | .num_resources = ARRAY_SIZE(uart2_resources), | |
119 | .resource = uart2_resources, | |
120 | }; | |
121 | ||
122 | static struct resource uart3_resources[] = { | |
123 | [0] = { | |
124 | .start = 0xe1050000, | |
125 | .end = 0xe1050037, | |
126 | .flags = IORESOURCE_MEM, | |
127 | }, | |
128 | [1] = { | |
129 | .start = 43, | |
130 | .flags = IORESOURCE_IRQ, | |
131 | } | |
132 | }; | |
133 | ||
134 | static struct platform_device uart3_device = { | |
135 | .name = "serial8250-em", | |
136 | .id = 3, | |
137 | .num_resources = ARRAY_SIZE(uart3_resources), | |
138 | .resource = uart3_resources, | |
139 | }; | |
140 | ||
141 | /* STI */ | |
142 | static struct resource sti_resources[] = { | |
143 | [0] = { | |
144 | .name = "STI", | |
145 | .start = 0xe0180000, | |
146 | .end = 0xe0180053, | |
147 | .flags = IORESOURCE_MEM, | |
148 | }, | |
149 | [1] = { | |
150 | .start = 157, | |
151 | .flags = IORESOURCE_IRQ, | |
152 | }, | |
153 | }; | |
154 | ||
155 | static struct platform_device sti_device = { | |
156 | .name = "em_sti", | |
157 | .id = 0, | |
158 | .resource = sti_resources, | |
159 | .num_resources = ARRAY_SIZE(sti_resources), | |
160 | }; | |
161 | ||
088efd92 MD |
162 | |
163 | /* GIO */ | |
164 | static struct gpio_em_config gio0_config = { | |
165 | .gpio_base = 0, | |
166 | .irq_base = EMEV2_GPIO_IRQ(0), | |
167 | .number_of_pins = 32, | |
168 | }; | |
169 | ||
170 | static struct resource gio0_resources[] = { | |
171 | [0] = { | |
172 | .name = "GIO_000", | |
173 | .start = 0xe0050000, | |
174 | .end = 0xe005002b, | |
175 | .flags = IORESOURCE_MEM, | |
176 | }, | |
177 | [1] = { | |
178 | .name = "GIO_000", | |
179 | .start = 0xe0050040, | |
180 | .end = 0xe005005f, | |
181 | .flags = IORESOURCE_MEM, | |
182 | }, | |
183 | [2] = { | |
184 | .start = 99, | |
185 | .flags = IORESOURCE_IRQ, | |
186 | }, | |
187 | [3] = { | |
188 | .start = 100, | |
189 | .flags = IORESOURCE_IRQ, | |
190 | }, | |
191 | }; | |
192 | ||
193 | static struct platform_device gio0_device = { | |
194 | .name = "em_gio", | |
195 | .id = 0, | |
196 | .resource = gio0_resources, | |
197 | .num_resources = ARRAY_SIZE(gio0_resources), | |
198 | .dev = { | |
199 | .platform_data = &gio0_config, | |
200 | }, | |
201 | }; | |
202 | ||
203 | static struct gpio_em_config gio1_config = { | |
204 | .gpio_base = 32, | |
205 | .irq_base = EMEV2_GPIO_IRQ(32), | |
206 | .number_of_pins = 32, | |
207 | }; | |
208 | ||
209 | static struct resource gio1_resources[] = { | |
210 | [0] = { | |
211 | .name = "GIO_032", | |
212 | .start = 0xe0050080, | |
213 | .end = 0xe00500ab, | |
214 | .flags = IORESOURCE_MEM, | |
215 | }, | |
216 | [1] = { | |
217 | .name = "GIO_032", | |
218 | .start = 0xe00500c0, | |
219 | .end = 0xe00500df, | |
220 | .flags = IORESOURCE_MEM, | |
221 | }, | |
222 | [2] = { | |
223 | .start = 101, | |
224 | .flags = IORESOURCE_IRQ, | |
225 | }, | |
226 | [3] = { | |
227 | .start = 102, | |
228 | .flags = IORESOURCE_IRQ, | |
229 | }, | |
230 | }; | |
231 | ||
232 | static struct platform_device gio1_device = { | |
233 | .name = "em_gio", | |
234 | .id = 1, | |
235 | .resource = gio1_resources, | |
236 | .num_resources = ARRAY_SIZE(gio1_resources), | |
237 | .dev = { | |
238 | .platform_data = &gio1_config, | |
239 | }, | |
240 | }; | |
241 | ||
242 | static struct gpio_em_config gio2_config = { | |
243 | .gpio_base = 64, | |
244 | .irq_base = EMEV2_GPIO_IRQ(64), | |
245 | .number_of_pins = 32, | |
246 | }; | |
247 | ||
248 | static struct resource gio2_resources[] = { | |
249 | [0] = { | |
250 | .name = "GIO_064", | |
251 | .start = 0xe0050100, | |
252 | .end = 0xe005012b, | |
253 | .flags = IORESOURCE_MEM, | |
254 | }, | |
255 | [1] = { | |
256 | .name = "GIO_064", | |
257 | .start = 0xe0050140, | |
258 | .end = 0xe005015f, | |
259 | .flags = IORESOURCE_MEM, | |
260 | }, | |
261 | [2] = { | |
262 | .start = 103, | |
263 | .flags = IORESOURCE_IRQ, | |
264 | }, | |
265 | [3] = { | |
266 | .start = 104, | |
267 | .flags = IORESOURCE_IRQ, | |
268 | }, | |
269 | }; | |
270 | ||
271 | static struct platform_device gio2_device = { | |
272 | .name = "em_gio", | |
273 | .id = 2, | |
274 | .resource = gio2_resources, | |
275 | .num_resources = ARRAY_SIZE(gio2_resources), | |
276 | .dev = { | |
277 | .platform_data = &gio2_config, | |
278 | }, | |
279 | }; | |
280 | ||
281 | static struct gpio_em_config gio3_config = { | |
282 | .gpio_base = 96, | |
283 | .irq_base = EMEV2_GPIO_IRQ(96), | |
284 | .number_of_pins = 32, | |
285 | }; | |
286 | ||
287 | static struct resource gio3_resources[] = { | |
288 | [0] = { | |
289 | .name = "GIO_096", | |
290 | .start = 0xe0050100, | |
291 | .end = 0xe005012b, | |
292 | .flags = IORESOURCE_MEM, | |
293 | }, | |
294 | [1] = { | |
295 | .name = "GIO_096", | |
296 | .start = 0xe0050140, | |
297 | .end = 0xe005015f, | |
298 | .flags = IORESOURCE_MEM, | |
299 | }, | |
300 | [2] = { | |
301 | .start = 105, | |
302 | .flags = IORESOURCE_IRQ, | |
303 | }, | |
304 | [3] = { | |
305 | .start = 106, | |
306 | .flags = IORESOURCE_IRQ, | |
307 | }, | |
308 | }; | |
309 | ||
310 | static struct platform_device gio3_device = { | |
311 | .name = "em_gio", | |
312 | .id = 3, | |
313 | .resource = gio3_resources, | |
314 | .num_resources = ARRAY_SIZE(gio3_resources), | |
315 | .dev = { | |
316 | .platform_data = &gio3_config, | |
317 | }, | |
318 | }; | |
319 | ||
320 | static struct gpio_em_config gio4_config = { | |
321 | .gpio_base = 128, | |
322 | .irq_base = EMEV2_GPIO_IRQ(128), | |
323 | .number_of_pins = 31, | |
324 | }; | |
325 | ||
326 | static struct resource gio4_resources[] = { | |
327 | [0] = { | |
328 | .name = "GIO_128", | |
329 | .start = 0xe0050200, | |
330 | .end = 0xe005022b, | |
331 | .flags = IORESOURCE_MEM, | |
332 | }, | |
333 | [1] = { | |
334 | .name = "GIO_128", | |
335 | .start = 0xe0050240, | |
336 | .end = 0xe005025f, | |
337 | .flags = IORESOURCE_MEM, | |
338 | }, | |
339 | [2] = { | |
340 | .start = 107, | |
341 | .flags = IORESOURCE_IRQ, | |
342 | }, | |
343 | [3] = { | |
344 | .start = 108, | |
345 | .flags = IORESOURCE_IRQ, | |
346 | }, | |
347 | }; | |
348 | ||
349 | static struct platform_device gio4_device = { | |
350 | .name = "em_gio", | |
351 | .id = 4, | |
352 | .resource = gio4_resources, | |
353 | .num_resources = ARRAY_SIZE(gio4_resources), | |
354 | .dev = { | |
355 | .platform_data = &gio4_config, | |
356 | }, | |
357 | }; | |
358 | ||
7f627f03 MD |
359 | static struct platform_device *emev2_early_devices[] __initdata = { |
360 | &uart0_device, | |
361 | &uart1_device, | |
362 | &uart2_device, | |
363 | &uart3_device, | |
364 | }; | |
365 | ||
366 | static struct platform_device *emev2_late_devices[] __initdata = { | |
367 | &sti_device, | |
088efd92 MD |
368 | &gio0_device, |
369 | &gio1_device, | |
370 | &gio2_device, | |
371 | &gio3_device, | |
372 | &gio4_device, | |
7f627f03 MD |
373 | }; |
374 | ||
375 | void __init emev2_add_standard_devices(void) | |
376 | { | |
377 | emev2_clock_init(); | |
378 | ||
379 | platform_add_devices(emev2_early_devices, | |
380 | ARRAY_SIZE(emev2_early_devices)); | |
381 | ||
382 | platform_add_devices(emev2_late_devices, | |
383 | ARRAY_SIZE(emev2_late_devices)); | |
384 | } | |
385 | ||
3d5de271 | 386 | void __init emev2_init_delay(void) |
7f627f03 MD |
387 | { |
388 | shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */ | |
3d5de271 MD |
389 | } |
390 | ||
391 | void __init emev2_add_early_devices(void) | |
392 | { | |
393 | emev2_init_delay(); | |
7f627f03 MD |
394 | |
395 | early_platform_add_devices(emev2_early_devices, | |
396 | ARRAY_SIZE(emev2_early_devices)); | |
397 | ||
398 | /* setup early console here as well */ | |
399 | shmobile_setup_console(); | |
400 | } | |
401 | ||
402 | void __init emev2_init_irq(void) | |
403 | { | |
404 | void __iomem *gic_dist_base; | |
405 | void __iomem *gic_cpu_base; | |
406 | ||
407 | /* Static mappings, never released */ | |
408 | gic_dist_base = ioremap(0xe0028000, PAGE_SIZE); | |
409 | gic_cpu_base = ioremap(0xe0020000, PAGE_SIZE); | |
410 | BUG_ON(!gic_dist_base || !gic_cpu_base); | |
411 | ||
412 | /* Use GIC to handle interrupts */ | |
413 | gic_init(0, 29, gic_dist_base, gic_cpu_base); | |
414 | } | |
3d5de271 MD |
415 | |
416 | #ifdef CONFIG_USE_OF | |
417 | static const struct of_dev_auxdata emev2_auxdata_lookup[] __initconst = { | |
418 | { } | |
419 | }; | |
420 | ||
421 | void __init emev2_add_standard_devices_dt(void) | |
422 | { | |
423 | of_platform_populate(NULL, of_default_bus_match_table, | |
424 | emev2_auxdata_lookup, NULL); | |
425 | } | |
426 | ||
427 | static const struct of_device_id emev2_dt_irq_match[] = { | |
428 | { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, }, | |
429 | {}, | |
430 | }; | |
431 | ||
432 | static const char *emev2_boards_compat_dt[] __initdata = { | |
433 | "renesas,emev2", | |
434 | NULL, | |
435 | }; | |
436 | ||
437 | void __init emev2_init_irq_dt(void) | |
438 | { | |
439 | of_irq_init(emev2_dt_irq_match); | |
440 | } | |
441 | ||
442 | DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)") | |
443 | .init_early = emev2_init_delay, | |
444 | .nr_irqs = NR_IRQS_LEGACY, | |
445 | .init_irq = emev2_init_irq_dt, | |
446 | .handle_irq = gic_handle_irq, | |
447 | .init_machine = emev2_add_standard_devices_dt, | |
448 | .timer = &shmobile_timer, | |
449 | .dt_compat = emev2_boards_compat_dt, | |
450 | MACHINE_END | |
451 | ||
452 | #endif /* CONFIG_USE_OF */ |