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6c01ba44 KM |
1 | /* |
2 | * R8A7740 processor support | |
3 | * | |
4 | * Copyright (C) 2011 Renesas Solutions Corp. | |
5 | * Copyright (C) 2011 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; version 2 of the License. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
6831f3a9 | 20 | #include <linux/delay.h> |
3841e6f5 | 21 | #include <linux/dma-mapping.h> |
6c01ba44 KM |
22 | #include <linux/kernel.h> |
23 | #include <linux/init.h> | |
6831f3a9 | 24 | #include <linux/io.h> |
6c01ba44 | 25 | #include <linux/platform_device.h> |
755d57b2 | 26 | #include <linux/of_platform.h> |
6c01ba44 | 27 | #include <linux/serial_sci.h> |
643c3307 | 28 | #include <linux/sh_dma.h> |
6c01ba44 | 29 | #include <linux/sh_timer.h> |
643c3307 | 30 | #include <linux/dma-mapping.h> |
d7de938f | 31 | #include <mach/dma-register.h> |
6c01ba44 | 32 | #include <mach/r8a7740.h> |
8459293c | 33 | #include <mach/pm-rmobile.h> |
d3ab7221 | 34 | #include <mach/common.h> |
250a2723 | 35 | #include <mach/irqs.h> |
6c01ba44 | 36 | #include <asm/mach-types.h> |
d3ab7221 | 37 | #include <asm/mach/map.h> |
6c01ba44 | 38 | #include <asm/mach/arch.h> |
23e5bc03 | 39 | #include <asm/mach/time.h> |
6c01ba44 | 40 | |
d3ab7221 MD |
41 | static struct map_desc r8a7740_io_desc[] __initdata = { |
42 | /* | |
43 | * for CPGA/INTC/PFC | |
44 | * 0xe6000000-0xefffffff -> 0xe6000000-0xefffffff | |
45 | */ | |
46 | { | |
47 | .virtual = 0xe6000000, | |
48 | .pfn = __phys_to_pfn(0xe6000000), | |
49 | .length = 160 << 20, | |
50 | .type = MT_DEVICE_NONSHARED | |
51 | }, | |
52 | #ifdef CONFIG_CACHE_L2X0 | |
53 | /* | |
54 | * for l2x0_init() | |
55 | * 0xf0100000-0xf0101000 -> 0xf0002000-0xf0003000 | |
56 | */ | |
57 | { | |
58 | .virtual = 0xf0002000, | |
59 | .pfn = __phys_to_pfn(0xf0100000), | |
60 | .length = PAGE_SIZE, | |
61 | .type = MT_DEVICE_NONSHARED | |
62 | }, | |
63 | #endif | |
64 | }; | |
65 | ||
66 | void __init r8a7740_map_io(void) | |
67 | { | |
68 | iotable_init(r8a7740_io_desc, ARRAY_SIZE(r8a7740_io_desc)); | |
69 | } | |
70 | ||
6c01ba44 KM |
71 | /* SCIFA0 */ |
72 | static struct plat_sci_port scif0_platform_data = { | |
73 | .mapbase = 0xe6c40000, | |
74 | .flags = UPF_BOOT_AUTOCONF, | |
75 | .scscr = SCSCR_RE | SCSCR_TE, | |
76 | .scbrr_algo_id = SCBRR_ALGO_4, | |
77 | .type = PORT_SCIFA, | |
215d6cc9 | 78 | .irqs = SCIx_IRQ_MUXED(evt2irq(0x0c00)), |
6c01ba44 KM |
79 | }; |
80 | ||
81 | static struct platform_device scif0_device = { | |
82 | .name = "sh-sci", | |
83 | .id = 0, | |
84 | .dev = { | |
85 | .platform_data = &scif0_platform_data, | |
86 | }, | |
87 | }; | |
88 | ||
89 | /* SCIFA1 */ | |
90 | static struct plat_sci_port scif1_platform_data = { | |
91 | .mapbase = 0xe6c50000, | |
92 | .flags = UPF_BOOT_AUTOCONF, | |
93 | .scscr = SCSCR_RE | SCSCR_TE, | |
94 | .scbrr_algo_id = SCBRR_ALGO_4, | |
95 | .type = PORT_SCIFA, | |
215d6cc9 | 96 | .irqs = SCIx_IRQ_MUXED(evt2irq(0x0c20)), |
6c01ba44 KM |
97 | }; |
98 | ||
99 | static struct platform_device scif1_device = { | |
100 | .name = "sh-sci", | |
101 | .id = 1, | |
102 | .dev = { | |
103 | .platform_data = &scif1_platform_data, | |
104 | }, | |
105 | }; | |
106 | ||
107 | /* SCIFA2 */ | |
108 | static struct plat_sci_port scif2_platform_data = { | |
109 | .mapbase = 0xe6c60000, | |
110 | .flags = UPF_BOOT_AUTOCONF, | |
111 | .scscr = SCSCR_RE | SCSCR_TE, | |
112 | .scbrr_algo_id = SCBRR_ALGO_4, | |
113 | .type = PORT_SCIFA, | |
215d6cc9 | 114 | .irqs = SCIx_IRQ_MUXED(evt2irq(0x0c40)), |
6c01ba44 KM |
115 | }; |
116 | ||
117 | static struct platform_device scif2_device = { | |
118 | .name = "sh-sci", | |
119 | .id = 2, | |
120 | .dev = { | |
121 | .platform_data = &scif2_platform_data, | |
122 | }, | |
123 | }; | |
124 | ||
125 | /* SCIFA3 */ | |
126 | static struct plat_sci_port scif3_platform_data = { | |
127 | .mapbase = 0xe6c70000, | |
128 | .flags = UPF_BOOT_AUTOCONF, | |
129 | .scscr = SCSCR_RE | SCSCR_TE, | |
130 | .scbrr_algo_id = SCBRR_ALGO_4, | |
131 | .type = PORT_SCIFA, | |
215d6cc9 | 132 | .irqs = SCIx_IRQ_MUXED(evt2irq(0x0c60)), |
6c01ba44 KM |
133 | }; |
134 | ||
135 | static struct platform_device scif3_device = { | |
136 | .name = "sh-sci", | |
137 | .id = 3, | |
138 | .dev = { | |
139 | .platform_data = &scif3_platform_data, | |
140 | }, | |
141 | }; | |
142 | ||
143 | /* SCIFA4 */ | |
144 | static struct plat_sci_port scif4_platform_data = { | |
145 | .mapbase = 0xe6c80000, | |
146 | .flags = UPF_BOOT_AUTOCONF, | |
147 | .scscr = SCSCR_RE | SCSCR_TE, | |
148 | .scbrr_algo_id = SCBRR_ALGO_4, | |
149 | .type = PORT_SCIFA, | |
215d6cc9 | 150 | .irqs = SCIx_IRQ_MUXED(evt2irq(0x0d20)), |
6c01ba44 KM |
151 | }; |
152 | ||
153 | static struct platform_device scif4_device = { | |
154 | .name = "sh-sci", | |
155 | .id = 4, | |
156 | .dev = { | |
157 | .platform_data = &scif4_platform_data, | |
158 | }, | |
159 | }; | |
160 | ||
161 | /* SCIFA5 */ | |
162 | static struct plat_sci_port scif5_platform_data = { | |
163 | .mapbase = 0xe6cb0000, | |
164 | .flags = UPF_BOOT_AUTOCONF, | |
165 | .scscr = SCSCR_RE | SCSCR_TE, | |
166 | .scbrr_algo_id = SCBRR_ALGO_4, | |
167 | .type = PORT_SCIFA, | |
215d6cc9 | 168 | .irqs = SCIx_IRQ_MUXED(evt2irq(0x0d40)), |
6c01ba44 KM |
169 | }; |
170 | ||
171 | static struct platform_device scif5_device = { | |
172 | .name = "sh-sci", | |
173 | .id = 5, | |
174 | .dev = { | |
175 | .platform_data = &scif5_platform_data, | |
176 | }, | |
177 | }; | |
178 | ||
179 | /* SCIFA6 */ | |
180 | static struct plat_sci_port scif6_platform_data = { | |
181 | .mapbase = 0xe6cc0000, | |
182 | .flags = UPF_BOOT_AUTOCONF, | |
183 | .scscr = SCSCR_RE | SCSCR_TE, | |
184 | .scbrr_algo_id = SCBRR_ALGO_4, | |
185 | .type = PORT_SCIFA, | |
215d6cc9 | 186 | .irqs = SCIx_IRQ_MUXED(evt2irq(0x04c0)), |
6c01ba44 KM |
187 | }; |
188 | ||
189 | static struct platform_device scif6_device = { | |
190 | .name = "sh-sci", | |
191 | .id = 6, | |
192 | .dev = { | |
193 | .platform_data = &scif6_platform_data, | |
194 | }, | |
195 | }; | |
196 | ||
197 | /* SCIFA7 */ | |
198 | static struct plat_sci_port scif7_platform_data = { | |
199 | .mapbase = 0xe6cd0000, | |
200 | .flags = UPF_BOOT_AUTOCONF, | |
201 | .scscr = SCSCR_RE | SCSCR_TE, | |
202 | .scbrr_algo_id = SCBRR_ALGO_4, | |
203 | .type = PORT_SCIFA, | |
215d6cc9 | 204 | .irqs = SCIx_IRQ_MUXED(evt2irq(0x04e0)), |
6c01ba44 KM |
205 | }; |
206 | ||
207 | static struct platform_device scif7_device = { | |
208 | .name = "sh-sci", | |
209 | .id = 7, | |
210 | .dev = { | |
211 | .platform_data = &scif7_platform_data, | |
212 | }, | |
213 | }; | |
214 | ||
215 | /* SCIFB */ | |
216 | static struct plat_sci_port scifb_platform_data = { | |
217 | .mapbase = 0xe6c30000, | |
218 | .flags = UPF_BOOT_AUTOCONF, | |
219 | .scscr = SCSCR_RE | SCSCR_TE, | |
220 | .scbrr_algo_id = SCBRR_ALGO_4, | |
221 | .type = PORT_SCIFB, | |
215d6cc9 | 222 | .irqs = SCIx_IRQ_MUXED(evt2irq(0x0d60)), |
6c01ba44 KM |
223 | }; |
224 | ||
225 | static struct platform_device scifb_device = { | |
226 | .name = "sh-sci", | |
227 | .id = 8, | |
228 | .dev = { | |
229 | .platform_data = &scifb_platform_data, | |
230 | }, | |
231 | }; | |
232 | ||
233 | /* CMT */ | |
234 | static struct sh_timer_config cmt10_platform_data = { | |
235 | .name = "CMT10", | |
236 | .channel_offset = 0x10, | |
237 | .timer_bit = 0, | |
238 | .clockevent_rating = 125, | |
239 | .clocksource_rating = 125, | |
240 | }; | |
241 | ||
242 | static struct resource cmt10_resources[] = { | |
243 | [0] = { | |
244 | .name = "CMT10", | |
245 | .start = 0xe6138010, | |
246 | .end = 0xe613801b, | |
247 | .flags = IORESOURCE_MEM, | |
248 | }, | |
249 | [1] = { | |
215d6cc9 | 250 | .start = evt2irq(0x0b00), |
6c01ba44 KM |
251 | .flags = IORESOURCE_IRQ, |
252 | }, | |
253 | }; | |
254 | ||
255 | static struct platform_device cmt10_device = { | |
256 | .name = "sh_cmt", | |
257 | .id = 10, | |
258 | .dev = { | |
259 | .platform_data = &cmt10_platform_data, | |
260 | }, | |
261 | .resource = cmt10_resources, | |
262 | .num_resources = ARRAY_SIZE(cmt10_resources), | |
263 | }; | |
264 | ||
265 | static struct platform_device *r8a7740_early_devices[] __initdata = { | |
266 | &scif0_device, | |
267 | &scif1_device, | |
268 | &scif2_device, | |
269 | &scif3_device, | |
270 | &scif4_device, | |
271 | &scif5_device, | |
272 | &scif6_device, | |
273 | &scif7_device, | |
274 | &scifb_device, | |
275 | &cmt10_device, | |
276 | }; | |
277 | ||
643c3307 | 278 | /* DMA */ |
643c3307 KM |
279 | static const struct sh_dmae_slave_config r8a7740_dmae_slaves[] = { |
280 | { | |
cb76eb81 KM |
281 | .slave_id = SHDMA_SLAVE_SDHI0_TX, |
282 | .addr = 0xe6850030, | |
283 | .chcr = CHCR_TX(XMIT_SZ_16BIT), | |
284 | .mid_rid = 0xc1, | |
285 | }, { | |
286 | .slave_id = SHDMA_SLAVE_SDHI0_RX, | |
287 | .addr = 0xe6850030, | |
288 | .chcr = CHCR_RX(XMIT_SZ_16BIT), | |
289 | .mid_rid = 0xc2, | |
290 | }, { | |
291 | .slave_id = SHDMA_SLAVE_SDHI1_TX, | |
292 | .addr = 0xe6860030, | |
293 | .chcr = CHCR_TX(XMIT_SZ_16BIT), | |
294 | .mid_rid = 0xc9, | |
295 | }, { | |
296 | .slave_id = SHDMA_SLAVE_SDHI1_RX, | |
297 | .addr = 0xe6860030, | |
298 | .chcr = CHCR_RX(XMIT_SZ_16BIT), | |
299 | .mid_rid = 0xca, | |
300 | }, { | |
301 | .slave_id = SHDMA_SLAVE_SDHI2_TX, | |
302 | .addr = 0xe6870030, | |
303 | .chcr = CHCR_TX(XMIT_SZ_16BIT), | |
304 | .mid_rid = 0xcd, | |
305 | }, { | |
306 | .slave_id = SHDMA_SLAVE_SDHI2_RX, | |
307 | .addr = 0xe6870030, | |
308 | .chcr = CHCR_RX(XMIT_SZ_16BIT), | |
309 | .mid_rid = 0xce, | |
310 | }, { | |
643c3307 KM |
311 | .slave_id = SHDMA_SLAVE_FSIA_TX, |
312 | .addr = 0xfe1f0024, | |
313 | .chcr = CHCR_TX(XMIT_SZ_32BIT), | |
314 | .mid_rid = 0xb1, | |
315 | }, { | |
316 | .slave_id = SHDMA_SLAVE_FSIA_RX, | |
317 | .addr = 0xfe1f0020, | |
318 | .chcr = CHCR_RX(XMIT_SZ_32BIT), | |
319 | .mid_rid = 0xb2, | |
320 | }, { | |
321 | .slave_id = SHDMA_SLAVE_FSIB_TX, | |
322 | .addr = 0xfe1f0064, | |
323 | .chcr = CHCR_TX(XMIT_SZ_32BIT), | |
324 | .mid_rid = 0xb5, | |
325 | }, | |
326 | }; | |
327 | ||
328 | #define DMA_CHANNEL(a, b, c) \ | |
329 | { \ | |
330 | .offset = a, \ | |
331 | .dmars = b, \ | |
332 | .dmars_bit = c, \ | |
333 | .chclr_offset = (0x220 - 0x20) + a \ | |
334 | } | |
335 | ||
336 | static const struct sh_dmae_channel r8a7740_dmae_channels[] = { | |
337 | DMA_CHANNEL(0x00, 0, 0), | |
338 | DMA_CHANNEL(0x10, 0, 8), | |
339 | DMA_CHANNEL(0x20, 4, 0), | |
340 | DMA_CHANNEL(0x30, 4, 8), | |
341 | DMA_CHANNEL(0x50, 8, 0), | |
342 | DMA_CHANNEL(0x60, 8, 8), | |
343 | }; | |
344 | ||
643c3307 KM |
345 | static struct sh_dmae_pdata dma_platform_data = { |
346 | .slave = r8a7740_dmae_slaves, | |
347 | .slave_num = ARRAY_SIZE(r8a7740_dmae_slaves), | |
348 | .channel = r8a7740_dmae_channels, | |
349 | .channel_num = ARRAY_SIZE(r8a7740_dmae_channels), | |
d7de938f KM |
350 | .ts_low_shift = TS_LOW_SHIFT, |
351 | .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT, | |
352 | .ts_high_shift = TS_HI_SHIFT, | |
353 | .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT, | |
354 | .ts_shift = dma_ts_shift, | |
355 | .ts_shift_num = ARRAY_SIZE(dma_ts_shift), | |
643c3307 KM |
356 | .dmaor_init = DMAOR_DME, |
357 | .chclr_present = 1, | |
358 | }; | |
359 | ||
360 | /* Resource order important! */ | |
361 | static struct resource r8a7740_dmae0_resources[] = { | |
362 | { | |
363 | /* Channel registers and DMAOR */ | |
364 | .start = 0xfe008020, | |
365 | .end = 0xfe00828f, | |
366 | .flags = IORESOURCE_MEM, | |
367 | }, | |
368 | { | |
369 | /* DMARSx */ | |
370 | .start = 0xfe009000, | |
371 | .end = 0xfe00900b, | |
372 | .flags = IORESOURCE_MEM, | |
373 | }, | |
374 | { | |
375 | .name = "error_irq", | |
376 | .start = evt2irq(0x20c0), | |
377 | .end = evt2irq(0x20c0), | |
378 | .flags = IORESOURCE_IRQ, | |
379 | }, | |
380 | { | |
381 | /* IRQ for channels 0-5 */ | |
382 | .start = evt2irq(0x2000), | |
383 | .end = evt2irq(0x20a0), | |
384 | .flags = IORESOURCE_IRQ, | |
385 | }, | |
386 | }; | |
387 | ||
388 | /* Resource order important! */ | |
389 | static struct resource r8a7740_dmae1_resources[] = { | |
390 | { | |
391 | /* Channel registers and DMAOR */ | |
392 | .start = 0xfe018020, | |
393 | .end = 0xfe01828f, | |
394 | .flags = IORESOURCE_MEM, | |
395 | }, | |
396 | { | |
397 | /* DMARSx */ | |
398 | .start = 0xfe019000, | |
399 | .end = 0xfe01900b, | |
400 | .flags = IORESOURCE_MEM, | |
401 | }, | |
402 | { | |
403 | .name = "error_irq", | |
404 | .start = evt2irq(0x21c0), | |
405 | .end = evt2irq(0x21c0), | |
406 | .flags = IORESOURCE_IRQ, | |
407 | }, | |
408 | { | |
409 | /* IRQ for channels 0-5 */ | |
410 | .start = evt2irq(0x2100), | |
411 | .end = evt2irq(0x21a0), | |
412 | .flags = IORESOURCE_IRQ, | |
413 | }, | |
414 | }; | |
415 | ||
416 | /* Resource order important! */ | |
417 | static struct resource r8a7740_dmae2_resources[] = { | |
418 | { | |
419 | /* Channel registers and DMAOR */ | |
420 | .start = 0xfe028020, | |
421 | .end = 0xfe02828f, | |
422 | .flags = IORESOURCE_MEM, | |
423 | }, | |
424 | { | |
425 | /* DMARSx */ | |
426 | .start = 0xfe029000, | |
427 | .end = 0xfe02900b, | |
428 | .flags = IORESOURCE_MEM, | |
429 | }, | |
430 | { | |
431 | .name = "error_irq", | |
432 | .start = evt2irq(0x22c0), | |
433 | .end = evt2irq(0x22c0), | |
434 | .flags = IORESOURCE_IRQ, | |
435 | }, | |
436 | { | |
437 | /* IRQ for channels 0-5 */ | |
438 | .start = evt2irq(0x2200), | |
439 | .end = evt2irq(0x22a0), | |
440 | .flags = IORESOURCE_IRQ, | |
441 | }, | |
442 | }; | |
443 | ||
444 | static struct platform_device dma0_device = { | |
445 | .name = "sh-dma-engine", | |
446 | .id = 0, | |
447 | .resource = r8a7740_dmae0_resources, | |
448 | .num_resources = ARRAY_SIZE(r8a7740_dmae0_resources), | |
449 | .dev = { | |
450 | .platform_data = &dma_platform_data, | |
451 | }, | |
452 | }; | |
453 | ||
454 | static struct platform_device dma1_device = { | |
455 | .name = "sh-dma-engine", | |
456 | .id = 1, | |
457 | .resource = r8a7740_dmae1_resources, | |
458 | .num_resources = ARRAY_SIZE(r8a7740_dmae1_resources), | |
459 | .dev = { | |
460 | .platform_data = &dma_platform_data, | |
461 | }, | |
462 | }; | |
463 | ||
464 | static struct platform_device dma2_device = { | |
465 | .name = "sh-dma-engine", | |
466 | .id = 2, | |
467 | .resource = r8a7740_dmae2_resources, | |
468 | .num_resources = ARRAY_SIZE(r8a7740_dmae2_resources), | |
469 | .dev = { | |
470 | .platform_data = &dma_platform_data, | |
471 | }, | |
472 | }; | |
473 | ||
dbf382e5 | 474 | /* USB-DMAC */ |
dbf382e5 KM |
475 | static const struct sh_dmae_channel r8a7740_usb_dma_channels[] = { |
476 | { | |
477 | .offset = 0, | |
478 | }, { | |
479 | .offset = 0x20, | |
480 | }, | |
481 | }; | |
482 | ||
dbf382e5 KM |
483 | static const struct sh_dmae_slave_config r8a7740_usb_dma_slaves[] = { |
484 | { | |
485 | .slave_id = SHDMA_SLAVE_USBHS_TX, | |
486 | .chcr = USBTS_INDEX2VAL(USBTS_XMIT_SZ_8BYTE), | |
487 | }, { | |
488 | .slave_id = SHDMA_SLAVE_USBHS_RX, | |
489 | .chcr = USBTS_INDEX2VAL(USBTS_XMIT_SZ_8BYTE), | |
490 | }, | |
491 | }; | |
492 | ||
493 | static struct sh_dmae_pdata usb_dma_platform_data = { | |
494 | .slave = r8a7740_usb_dma_slaves, | |
495 | .slave_num = ARRAY_SIZE(r8a7740_usb_dma_slaves), | |
496 | .channel = r8a7740_usb_dma_channels, | |
497 | .channel_num = ARRAY_SIZE(r8a7740_usb_dma_channels), | |
d7de938f KM |
498 | .ts_low_shift = USBTS_LOW_SHIFT, |
499 | .ts_low_mask = USBTS_LOW_BIT << USBTS_LOW_SHIFT, | |
500 | .ts_high_shift = USBTS_HI_SHIFT, | |
501 | .ts_high_mask = USBTS_HI_BIT << USBTS_HI_SHIFT, | |
dbf382e5 KM |
502 | .ts_shift = dma_usbts_shift, |
503 | .ts_shift_num = ARRAY_SIZE(dma_usbts_shift), | |
504 | .dmaor_init = DMAOR_DME, | |
505 | .chcr_offset = 0x14, | |
506 | .chcr_ie_bit = 1 << 5, | |
507 | .dmaor_is_32bit = 1, | |
508 | .needs_tend_set = 1, | |
509 | .no_dmars = 1, | |
510 | .slave_only = 1, | |
511 | }; | |
512 | ||
513 | static struct resource r8a7740_usb_dma_resources[] = { | |
514 | { | |
515 | /* Channel registers and DMAOR */ | |
516 | .start = 0xe68a0020, | |
517 | .end = 0xe68a0064 - 1, | |
518 | .flags = IORESOURCE_MEM, | |
519 | }, | |
520 | { | |
521 | /* VCR/SWR/DMICR */ | |
522 | .start = 0xe68a0000, | |
523 | .end = 0xe68a0014 - 1, | |
524 | .flags = IORESOURCE_MEM, | |
525 | }, | |
526 | { | |
527 | /* IRQ for channels */ | |
528 | .start = evt2irq(0x0a00), | |
529 | .end = evt2irq(0x0a00), | |
530 | .flags = IORESOURCE_IRQ, | |
531 | }, | |
532 | }; | |
533 | ||
534 | static struct platform_device usb_dma_device = { | |
535 | .name = "sh-dma-engine", | |
536 | .id = 3, | |
537 | .resource = r8a7740_usb_dma_resources, | |
538 | .num_resources = ARRAY_SIZE(r8a7740_usb_dma_resources), | |
539 | .dev = { | |
540 | .platform_data = &usb_dma_platform_data, | |
541 | }, | |
542 | }; | |
543 | ||
6831f3a9 KM |
544 | /* I2C */ |
545 | static struct resource i2c0_resources[] = { | |
546 | [0] = { | |
547 | .name = "IIC0", | |
548 | .start = 0xfff20000, | |
549 | .end = 0xfff20425 - 1, | |
550 | .flags = IORESOURCE_MEM, | |
551 | }, | |
552 | [1] = { | |
215d6cc9 KM |
553 | .start = intcs_evt2irq(0xe00), |
554 | .end = intcs_evt2irq(0xe60), | |
6831f3a9 KM |
555 | .flags = IORESOURCE_IRQ, |
556 | }, | |
557 | }; | |
558 | ||
559 | static struct resource i2c1_resources[] = { | |
560 | [0] = { | |
561 | .name = "IIC1", | |
562 | .start = 0xe6c20000, | |
563 | .end = 0xe6c20425 - 1, | |
564 | .flags = IORESOURCE_MEM, | |
565 | }, | |
566 | [1] = { | |
215d6cc9 KM |
567 | .start = evt2irq(0x780), /* IIC1_ALI1 */ |
568 | .end = evt2irq(0x7e0), /* IIC1_DTEI1 */ | |
6831f3a9 KM |
569 | .flags = IORESOURCE_IRQ, |
570 | }, | |
571 | }; | |
572 | ||
573 | static struct platform_device i2c0_device = { | |
574 | .name = "i2c-sh_mobile", | |
575 | .id = 0, | |
576 | .resource = i2c0_resources, | |
577 | .num_resources = ARRAY_SIZE(i2c0_resources), | |
578 | }; | |
579 | ||
580 | static struct platform_device i2c1_device = { | |
581 | .name = "i2c-sh_mobile", | |
582 | .id = 1, | |
583 | .resource = i2c1_resources, | |
584 | .num_resources = ARRAY_SIZE(i2c1_resources), | |
585 | }; | |
586 | ||
86bc52ef NI |
587 | static struct resource pmu_resources[] = { |
588 | [0] = { | |
589 | .start = evt2irq(0x19a0), | |
590 | .end = evt2irq(0x19a0), | |
591 | .flags = IORESOURCE_IRQ, | |
592 | }, | |
593 | }; | |
594 | ||
595 | static struct platform_device pmu_device = { | |
596 | .name = "arm-pmu", | |
597 | .id = -1, | |
598 | .num_resources = ARRAY_SIZE(pmu_resources), | |
599 | .resource = pmu_resources, | |
600 | }; | |
601 | ||
6831f3a9 KM |
602 | static struct platform_device *r8a7740_late_devices[] __initdata = { |
603 | &i2c0_device, | |
604 | &i2c1_device, | |
643c3307 KM |
605 | &dma0_device, |
606 | &dma1_device, | |
607 | &dma2_device, | |
dbf382e5 | 608 | &usb_dma_device, |
86bc52ef | 609 | &pmu_device, |
6831f3a9 KM |
610 | }; |
611 | ||
d49679e5 KM |
612 | /* |
613 | * r8a7740 chip has lasting errata on MERAM buffer. | |
614 | * this is work-around for it. | |
615 | * see | |
616 | * "Media RAM (MERAM)" on r8a7740 documentation | |
617 | */ | |
618 | #define MEBUFCNTR 0xFE950098 | |
619 | void r8a7740_meram_workaround(void) | |
620 | { | |
621 | void __iomem *reg; | |
622 | ||
623 | reg = ioremap_nocache(MEBUFCNTR, 4); | |
624 | if (reg) { | |
625 | iowrite32(0x01600164, reg); | |
626 | iounmap(reg); | |
627 | } | |
628 | } | |
629 | ||
6831f3a9 KM |
630 | #define ICCR 0x0004 |
631 | #define ICSTART 0x0070 | |
632 | ||
633 | #define i2c_read(reg, offset) ioread8(reg + offset) | |
634 | #define i2c_write(reg, offset, data) iowrite8(data, reg + offset) | |
635 | ||
636 | /* | |
637 | * r8a7740 chip has lasting errata on I2C I/O pad reset. | |
638 | * this is work-around for it. | |
639 | */ | |
640 | static void r8a7740_i2c_workaround(struct platform_device *pdev) | |
641 | { | |
642 | struct resource *res; | |
643 | void __iomem *reg; | |
644 | ||
645 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
646 | if (unlikely(!res)) { | |
647 | pr_err("r8a7740 i2c workaround fail (cannot find resource)\n"); | |
648 | return; | |
649 | } | |
650 | ||
651 | reg = ioremap(res->start, resource_size(res)); | |
652 | if (unlikely(!reg)) { | |
653 | pr_err("r8a7740 i2c workaround fail (cannot map IO)\n"); | |
654 | return; | |
655 | } | |
656 | ||
657 | i2c_write(reg, ICCR, i2c_read(reg, ICCR) | 0x80); | |
658 | i2c_read(reg, ICCR); /* dummy read */ | |
659 | ||
660 | i2c_write(reg, ICSTART, i2c_read(reg, ICSTART) | 0x10); | |
661 | i2c_read(reg, ICSTART); /* dummy read */ | |
662 | ||
4228716c | 663 | udelay(10); |
6831f3a9 KM |
664 | |
665 | i2c_write(reg, ICCR, 0x01); | |
6831f3a9 | 666 | i2c_write(reg, ICSTART, 0x00); |
4228716c KM |
667 | |
668 | udelay(10); | |
6831f3a9 KM |
669 | |
670 | i2c_write(reg, ICCR, 0x10); | |
4228716c | 671 | udelay(10); |
6831f3a9 | 672 | i2c_write(reg, ICCR, 0x00); |
4228716c | 673 | udelay(10); |
6831f3a9 | 674 | i2c_write(reg, ICCR, 0x10); |
4228716c | 675 | udelay(10); |
6831f3a9 KM |
676 | |
677 | iounmap(reg); | |
678 | } | |
679 | ||
6c01ba44 KM |
680 | void __init r8a7740_add_standard_devices(void) |
681 | { | |
6831f3a9 KM |
682 | /* I2C work-around */ |
683 | r8a7740_i2c_workaround(&i2c0_device); | |
684 | r8a7740_i2c_workaround(&i2c1_device); | |
685 | ||
7b567407 | 686 | r8a7740_init_pm_domains(); |
8459293c KM |
687 | |
688 | /* add devices */ | |
6c01ba44 KM |
689 | platform_add_devices(r8a7740_early_devices, |
690 | ARRAY_SIZE(r8a7740_early_devices)); | |
6831f3a9 KM |
691 | platform_add_devices(r8a7740_late_devices, |
692 | ARRAY_SIZE(r8a7740_late_devices)); | |
802a5639 KM |
693 | |
694 | /* add devices to PM domain */ | |
695 | ||
8bdd9468 RW |
696 | rmobile_add_device_to_domain("A3SP", &scif0_device); |
697 | rmobile_add_device_to_domain("A3SP", &scif1_device); | |
698 | rmobile_add_device_to_domain("A3SP", &scif2_device); | |
699 | rmobile_add_device_to_domain("A3SP", &scif3_device); | |
700 | rmobile_add_device_to_domain("A3SP", &scif4_device); | |
701 | rmobile_add_device_to_domain("A3SP", &scif5_device); | |
702 | rmobile_add_device_to_domain("A3SP", &scif6_device); | |
703 | rmobile_add_device_to_domain("A3SP", &scif7_device); | |
704 | rmobile_add_device_to_domain("A3SP", &scifb_device); | |
705 | rmobile_add_device_to_domain("A3SP", &i2c1_device); | |
6c01ba44 KM |
706 | } |
707 | ||
23e5bc03 MD |
708 | static void __init r8a7740_earlytimer_init(void) |
709 | { | |
710 | r8a7740_clock_init(0); | |
711 | shmobile_earlytimer_init(); | |
712 | } | |
713 | ||
6c01ba44 KM |
714 | void __init r8a7740_add_early_devices(void) |
715 | { | |
716 | early_platform_add_devices(r8a7740_early_devices, | |
717 | ARRAY_SIZE(r8a7740_early_devices)); | |
d3ab7221 MD |
718 | |
719 | /* setup early console here as well */ | |
720 | shmobile_setup_console(); | |
23e5bc03 MD |
721 | |
722 | /* override timer setup with soc-specific code */ | |
723 | shmobile_timer.init = r8a7740_earlytimer_init; | |
6c01ba44 | 724 | } |
755d57b2 MD |
725 | |
726 | #ifdef CONFIG_USE_OF | |
727 | ||
728 | void __init r8a7740_add_early_devices_dt(void) | |
729 | { | |
730 | shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */ | |
731 | ||
732 | early_platform_add_devices(r8a7740_early_devices, | |
733 | ARRAY_SIZE(r8a7740_early_devices)); | |
734 | ||
735 | /* setup early console here as well */ | |
736 | shmobile_setup_console(); | |
737 | } | |
738 | ||
739 | static const struct of_dev_auxdata r8a7740_auxdata_lookup[] __initconst = { | |
740 | { } | |
741 | }; | |
742 | ||
743 | void __init r8a7740_add_standard_devices_dt(void) | |
744 | { | |
745 | /* clocks are setup late during boot in the case of DT */ | |
746 | r8a7740_clock_init(0); | |
747 | ||
748 | platform_add_devices(r8a7740_early_devices, | |
749 | ARRAY_SIZE(r8a7740_early_devices)); | |
750 | ||
751 | of_platform_populate(NULL, of_default_bus_match_table, | |
752 | r8a7740_auxdata_lookup, NULL); | |
753 | } | |
754 | ||
755 | static const char *r8a7740_boards_compat_dt[] __initdata = { | |
756 | "renesas,r8a7740", | |
757 | NULL, | |
758 | }; | |
759 | ||
a41acc4a | 760 | DT_MACHINE_START(R8A7740_DT, "Generic R8A7740 (Flattened Device Tree)") |
755d57b2 MD |
761 | .map_io = r8a7740_map_io, |
762 | .init_early = r8a7740_add_early_devices_dt, | |
763 | .init_irq = r8a7740_init_irq, | |
764 | .handle_irq = shmobile_handle_irq_intc, | |
765 | .init_machine = r8a7740_add_standard_devices_dt, | |
766 | .timer = &shmobile_timer, | |
767 | .dt_compat = r8a7740_boards_compat_dt, | |
768 | MACHINE_END | |
769 | ||
770 | #endif /* CONFIG_USE_OF */ |