1 /*
2 * arch/sh/kernel/cpu/sh4a/setup-sh7734.c
3
4 * SH7734 Setup
5 *
6 * Copyright (C) 2011,2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
7 * Copyright (C) 2011,2012 Renesas Solutions Corp.
8 *
9 * This file is subject to the terms and conditions of the GNU General Public
10 * License. See the file "COPYING" in the main directory of this archive
11 * for more details.
12 */
13
14 #include <linux/platform_device.h>
15 #include <linux/init.h>
16 #include <linux/serial.h>
17 #include <linux/mm.h>
18 #include <linux/dma-mapping.h>
19 #include <linux/serial_sci.h>
20 #include <linux/sh_timer.h>
21 #include <linux/io.h>
22 #include <asm/clock.h>
23 #include <asm/irq.h>
24 #include <cpu/sh7734.h>
25
26 /* SCIF */
27 static struct plat_sci_port scif0_platform_data = {
28 .flags = UPF_BOOT_AUTOCONF,
29 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
30 .type = PORT_SCIF,
31 .regtype = SCIx_SH4_SCIF_REGTYPE,
32 };
33
34 static struct resource scif0_resources[] = {
35 DEFINE_RES_MEM(0xffe40000, 0x100),
36 DEFINE_RES_IRQ(evt2irq(0x8c0)),
37 };
38
39 static struct platform_device scif0_device = {
40 .name = "sh-sci",
41 .id = 0,
42 .resource = scif0_resources,
43 .num_resources = ARRAY_SIZE(scif0_resources),
44 .dev = {
45 .platform_data = &scif0_platform_data,
46 },
47 };
48
49 static struct plat_sci_port scif1_platform_data = {
50 .flags = UPF_BOOT_AUTOCONF,
51 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
52 .type = PORT_SCIF,
53 .regtype = SCIx_SH4_SCIF_REGTYPE,
54 };
55
56 static struct resource scif1_resources[] = {
57 DEFINE_RES_MEM(0xffe41000, 0x100),
58 DEFINE_RES_IRQ(evt2irq(0x8e0)),
59 };
60
61 static struct platform_device scif1_device = {
62 .name = "sh-sci",
63 .id = 1,
64 .resource = scif1_resources,
65 .num_resources = ARRAY_SIZE(scif1_resources),
66 .dev = {
67 .platform_data = &scif1_platform_data,
68 },
69 };
70
71 static struct plat_sci_port scif2_platform_data = {
72 .flags = UPF_BOOT_AUTOCONF,
73 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
74 .type = PORT_SCIF,
75 .regtype = SCIx_SH4_SCIF_REGTYPE,
76 };
77
78 static struct resource scif2_resources[] = {
79 DEFINE_RES_MEM(0xffe42000, 0x100),
80 DEFINE_RES_IRQ(evt2irq(0x900)),
81 };
82
83 static struct platform_device scif2_device = {
84 .name = "sh-sci",
85 .id = 2,
86 .resource = scif2_resources,
87 .num_resources = ARRAY_SIZE(scif2_resources),
88 .dev = {
89 .platform_data = &scif2_platform_data,
90 },
91 };
92
93 static struct plat_sci_port scif3_platform_data = {
94 .flags = UPF_BOOT_AUTOCONF,
95 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
96 .type = PORT_SCIF,
97 .regtype = SCIx_SH4_SCIF_REGTYPE,
98 };
99
100 static struct resource scif3_resources[] = {
101 DEFINE_RES_MEM(0xffe43000, 0x100),
102 DEFINE_RES_IRQ(evt2irq(0x920)),
103 };
104
105 static struct platform_device scif3_device = {
106 .name = "sh-sci",
107 .id = 3,
108 .resource = scif3_resources,
109 .num_resources = ARRAY_SIZE(scif3_resources),
110 .dev = {
111 .platform_data = &scif3_platform_data,
112 },
113 };
114
115 static struct plat_sci_port scif4_platform_data = {
116 .flags = UPF_BOOT_AUTOCONF,
117 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
118 .type = PORT_SCIF,
119 .regtype = SCIx_SH4_SCIF_REGTYPE,
120 };
121
122 static struct resource scif4_resources[] = {
123 DEFINE_RES_MEM(0xffe44000, 0x100),
124 DEFINE_RES_IRQ(evt2irq(0x940)),
125 };
126
127 static struct platform_device scif4_device = {
128 .name = "sh-sci",
129 .id = 4,
130 .resource = scif4_resources,
131 .num_resources = ARRAY_SIZE(scif4_resources),
132 .dev = {
133 .platform_data = &scif4_platform_data,
134 },
135 };
136
137 static struct plat_sci_port scif5_platform_data = {
138 .flags = UPF_BOOT_AUTOCONF,
139 .scscr = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
140 .type = PORT_SCIF,
141 .regtype = SCIx_SH4_SCIF_REGTYPE,
142 };
143
144 static struct resource scif5_resources[] = {
145 DEFINE_RES_MEM(0xffe43000, 0x100),
146 DEFINE_RES_IRQ(evt2irq(0x960)),
147 };
148
149 static struct platform_device scif5_device = {
150 .name = "sh-sci",
151 .id = 5,
152 .resource = scif5_resources,
153 .num_resources = ARRAY_SIZE(scif5_resources),
154 .dev = {
155 .platform_data = &scif5_platform_data,
156 },
157 };
158
159 /* RTC */
160 static struct resource rtc_resources[] = {
161 [0] = {
162 .name = "rtc",
163 .start = 0xFFFC5000,
164 .end = 0xFFFC5000 + 0x26 - 1,
165 .flags = IORESOURCE_IO,
166 },
167 [1] = {
168 .start = evt2irq(0xC00),
169 .flags = IORESOURCE_IRQ,
170 },
171 };
172
173 static struct platform_device rtc_device = {
174 .name = "sh-rtc",
175 .id = -1,
176 .num_resources = ARRAY_SIZE(rtc_resources),
177 .resource = rtc_resources,
178 };
179
180 /* I2C 0 */
181 static struct resource i2c0_resources[] = {
182 [0] = {
183 .name = "IIC0",
184 .start = 0xFFC70000,
185 .end = 0xFFC7000A - 1,
186 .flags = IORESOURCE_MEM,
187 },
188 [1] = {
189 .start = evt2irq(0x860),
190 .flags = IORESOURCE_IRQ,
191 },
192 };
193
194 static struct platform_device i2c0_device = {
195 .name = "i2c-sh7734",
196 .id = 0,
197 .num_resources = ARRAY_SIZE(i2c0_resources),
198 .resource = i2c0_resources,
199 };
200
201 /* TMU */
202 static struct sh_timer_config tmu0_platform_data = {
203 .channels_mask = 7,
204 };
205
206 static struct resource tmu0_resources[] = {
207 DEFINE_RES_MEM(0xffd80000, 0x30),
208 DEFINE_RES_IRQ(evt2irq(0x400)),
209 DEFINE_RES_IRQ(evt2irq(0x420)),
210 DEFINE_RES_IRQ(evt2irq(0x440)),
211 };
212
213 static struct platform_device tmu0_device = {
214 .name = "sh-tmu",
215 .id = 0,
216 .dev = {
217 .platform_data = &tmu0_platform_data,
218 },
219 .resource = tmu0_resources,
220 .num_resources = ARRAY_SIZE(tmu0_resources),
221 };
222
223 static struct sh_timer_config tmu1_platform_data = {
224 .channels_mask = 7,
225 };
226
227 static struct resource tmu1_resources[] = {
228 DEFINE_RES_MEM(0xffd81000, 0x30),
229 DEFINE_RES_IRQ(evt2irq(0x480)),
230 DEFINE_RES_IRQ(evt2irq(0x4a0)),
231 DEFINE_RES_IRQ(evt2irq(0x4c0)),
232 };
233
234 static struct platform_device tmu1_device = {
235 .name = "sh-tmu",
236 .id = 1,
237 .dev = {
238 .platform_data = &tmu1_platform_data,
239 },
240 .resource = tmu1_resources,
241 .num_resources = ARRAY_SIZE(tmu1_resources),
242 };
243
244 static struct sh_timer_config tmu2_platform_data = {
245 .channels_mask = 7,
246 };
247
248 static struct resource tmu2_resources[] = {
249 DEFINE_RES_MEM(0xffd82000, 0x30),
250 DEFINE_RES_IRQ(evt2irq(0x500)),
251 DEFINE_RES_IRQ(evt2irq(0x520)),
252 DEFINE_RES_IRQ(evt2irq(0x540)),
253 };
254
255 static struct platform_device tmu2_device = {
256 .name = "sh-tmu",
257 .id = 2,
258 .dev = {
259 .platform_data = &tmu2_platform_data,
260 },
261 .resource = tmu2_resources,
262 .num_resources = ARRAY_SIZE(tmu2_resources),
263 };
264
265 static struct platform_device *sh7734_devices[] __initdata = {
266 &scif0_device,
267 &scif1_device,
268 &scif2_device,
269 &scif3_device,
270 &scif4_device,
271 &scif5_device,
272 &tmu0_device,
273 &tmu1_device,
274 &tmu2_device,
275 &rtc_device,
276 };
277
278 static struct platform_device *sh7734_early_devices[] __initdata = {
279 &scif0_device,
280 &scif1_device,
281 &scif2_device,
282 &scif3_device,
283 &scif4_device,
284 &scif5_device,
285 &tmu0_device,
286 &tmu1_device,
287 &tmu2_device,
288 };
289
plat_early_device_setup(void)290 void __init plat_early_device_setup(void)
291 {
292 early_platform_add_devices(sh7734_early_devices,
293 ARRAY_SIZE(sh7734_early_devices));
294 }
295
296 #define GROUP 0
297 enum {
298 UNUSED = 0,
299
300 /* interrupt sources */
301
302 IRL0_LLLL, IRL0_LLLH, IRL0_LLHL, IRL0_LLHH,
303 IRL0_LHLL, IRL0_LHLH, IRL0_LHHL, IRL0_LHHH,
304 IRL0_HLLL, IRL0_HLLH, IRL0_HLHL, IRL0_HLHH,
305 IRL0_HHLL, IRL0_HHLH, IRL0_HHHL,
306
307 IRQ0, IRQ1, IRQ2, IRQ3,
308 DU,
309 TMU00, TMU10, TMU20, TMU21,
310 TMU30, TMU40, TMU50, TMU51,
311 TMU60, TMU70, TMU80,
312 RESET_WDT,
313 USB,
314 HUDI,
315 SHDMAC,
316 SSI0, SSI1, SSI2, SSI3,
317 VIN0,
318 RGPVG,
319 _2DG,
320 MMC,
321 HSPI,
322 LBSCATA,
323 I2C0,
324 RCAN0,
325 MIMLB,
326 SCIF0, SCIF1, SCIF2, SCIF3, SCIF4, SCIF5,
327 LBSCDMAC0, LBSCDMAC1, LBSCDMAC2,
328 RCAN1,
329 SDHI0, SDHI1,
330 IEBUS,
331 HPBDMAC0_3, HPBDMAC4_10, HPBDMAC11_18, HPBDMAC19_22, HPBDMAC23_25_27_28,
332 RTC,
333 VIN1,
334 LCDC,
335 SRC0, SRC1,
336 GETHER,
337 SDHI2,
338 GPIO0_3, GPIO4_5,
339 STIF0, STIF1,
340 ADMAC,
341 HIF,
342 FLCTL,
343 ADC,
344 MTU2,
345 RSPI,
346 QSPI,
347 HSCIF,
348 VEU3F_VE3,
349
350 /* Group */
351 /* Mask */
352 STIF_M,
353 GPIO_M,
354 HPBDMAC_M,
355 LBSCDMAC_M,
356 RCAN_M,
357 SRC_M,
358 SCIF_M,
359 LCDC_M,
360 _2DG_M,
361 VIN_M,
362 TMU_3_M,
363 TMU_0_M,
364
365 /* Priority */
366 RCAN_P,
367 LBSCDMAC_P,
368
369 /* Common */
370 SDHI,
371 SSI,
372 SPI,
373 };
374
375 static struct intc_vect vectors[] __initdata = {
376 INTC_VECT(DU, 0x3E0),
377 INTC_VECT(TMU00, 0x400),
378 INTC_VECT(TMU10, 0x420),
379 INTC_VECT(TMU20, 0x440),
380 INTC_VECT(TMU30, 0x480),
381 INTC_VECT(TMU40, 0x4A0),
382 INTC_VECT(TMU50, 0x4C0),
383 INTC_VECT(TMU51, 0x4E0),
384 INTC_VECT(TMU60, 0x500),
385 INTC_VECT(TMU70, 0x520),
386 INTC_VECT(TMU80, 0x540),
387 INTC_VECT(RESET_WDT, 0x560),
388 INTC_VECT(USB, 0x580),
389 INTC_VECT(HUDI, 0x600),
390 INTC_VECT(SHDMAC, 0x620),
391 INTC_VECT(SSI0, 0x6C0),
392 INTC_VECT(SSI1, 0x6E0),
393 INTC_VECT(SSI2, 0x700),
394 INTC_VECT(SSI3, 0x720),
395 INTC_VECT(VIN0, 0x740),
396 INTC_VECT(RGPVG, 0x760),
397 INTC_VECT(_2DG, 0x780),
398 INTC_VECT(MMC, 0x7A0),
399 INTC_VECT(HSPI, 0x7E0),
400 INTC_VECT(LBSCATA, 0x840),
401 INTC_VECT(I2C0, 0x860),
402 INTC_VECT(RCAN0, 0x880),
403 INTC_VECT(SCIF0, 0x8A0),
404 INTC_VECT(SCIF1, 0x8C0),
405 INTC_VECT(SCIF2, 0x900),
406 INTC_VECT(SCIF3, 0x920),
407 INTC_VECT(SCIF4, 0x940),
408 INTC_VECT(SCIF5, 0x960),
409 INTC_VECT(LBSCDMAC0, 0x9E0),
410 INTC_VECT(LBSCDMAC1, 0xA00),
411 INTC_VECT(LBSCDMAC2, 0xA20),
412 INTC_VECT(RCAN1, 0xA60),
413 INTC_VECT(SDHI0, 0xAE0),
414 INTC_VECT(SDHI1, 0xB00),
415 INTC_VECT(IEBUS, 0xB20),
416 INTC_VECT(HPBDMAC0_3, 0xB60),
417 INTC_VECT(HPBDMAC4_10, 0xB80),
418 INTC_VECT(HPBDMAC11_18, 0xBA0),
419 INTC_VECT(HPBDMAC19_22, 0xBC0),
420 INTC_VECT(HPBDMAC23_25_27_28, 0xBE0),
421 INTC_VECT(RTC, 0xC00),
422 INTC_VECT(VIN1, 0xC20),
423 INTC_VECT(LCDC, 0xC40),
424 INTC_VECT(SRC0, 0xC60),
425 INTC_VECT(SRC1, 0xC80),
426 INTC_VECT(GETHER, 0xCA0),
427 INTC_VECT(SDHI2, 0xCC0),
428 INTC_VECT(GPIO0_3, 0xCE0),
429 INTC_VECT(GPIO4_5, 0xD00),
430 INTC_VECT(STIF0, 0xD20),
431 INTC_VECT(STIF1, 0xD40),
432 INTC_VECT(ADMAC, 0xDA0),
433 INTC_VECT(HIF, 0xDC0),
434 INTC_VECT(FLCTL, 0xDE0),
435 INTC_VECT(ADC, 0xE00),
436 INTC_VECT(MTU2, 0xE20),
437 INTC_VECT(RSPI, 0xE40),
438 INTC_VECT(QSPI, 0xE60),
439 INTC_VECT(HSCIF, 0xFC0),
440 INTC_VECT(VEU3F_VE3, 0xF40),
441 };
442
443 static struct intc_group groups[] __initdata = {
444 /* Common */
445 INTC_GROUP(SDHI, SDHI0, SDHI1, SDHI2),
446 INTC_GROUP(SPI, HSPI, RSPI, QSPI),
447 INTC_GROUP(SSI, SSI0, SSI1, SSI2, SSI3),
448
449 /* Mask group */
450 INTC_GROUP(STIF_M, STIF0, STIF1), /* 22 */
451 INTC_GROUP(GPIO_M, GPIO0_3, GPIO4_5), /* 21 */
452 INTC_GROUP(HPBDMAC_M, HPBDMAC0_3, HPBDMAC4_10, HPBDMAC11_18,
453 HPBDMAC19_22, HPBDMAC23_25_27_28), /* 19 */
454 INTC_GROUP(LBSCDMAC_M, LBSCDMAC0, LBSCDMAC1, LBSCDMAC2), /* 18 */
455 INTC_GROUP(RCAN_M, RCAN0, RCAN1, IEBUS), /* 17 */
456 INTC_GROUP(SRC_M, SRC0, SRC1), /* 16 */
457 INTC_GROUP(SCIF_M, SCIF0, SCIF1, SCIF2, SCIF3, SCIF4, SCIF5,
458 HSCIF), /* 14 */
459 INTC_GROUP(LCDC_M, LCDC, MIMLB), /* 13 */
460 INTC_GROUP(_2DG_M, _2DG, RGPVG), /* 12 */
461 INTC_GROUP(VIN_M, VIN0, VIN1), /* 10 */
462 INTC_GROUP(TMU_3_M, TMU30, TMU40, TMU50, TMU51,
463 TMU60, TMU60, TMU70, TMU80), /* 2 */
464 INTC_GROUP(TMU_0_M, TMU00, TMU10, TMU20, TMU21), /* 1 */
465
466 /* Priority group*/
467 INTC_GROUP(RCAN_P, RCAN0, RCAN1), /* INT2PRI5 */
468 INTC_GROUP(LBSCDMAC_P, LBSCDMAC0, LBSCDMAC1), /* INT2PRI5 */
469 };
470
471 static struct intc_mask_reg mask_registers[] __initdata = {
472 { 0xFF804040, 0xFF804044, 32, /* INT2MSKRG / INT2MSKCR */
473 { 0,
474 VEU3F_VE3,
475 SDHI, /* SDHI 0-2 */
476 ADMAC,
477 FLCTL,
478 RESET_WDT,
479 HIF,
480 ADC,
481 MTU2,
482 STIF_M, /* STIF 0,1 */
483 GPIO_M, /* GPIO 0-5*/
484 GETHER,
485 HPBDMAC_M, /* HPBDMAC 0_3 - 23_25_27_28 */
486 LBSCDMAC_M, /* LBSCDMAC 0 - 2 */
487 RCAN_M, /* RCAN, IEBUS */
488 SRC_M, /* SRC 0,1 */
489 LBSCATA,
490 SCIF_M, /* SCIF 0-5, HSCIF */
491 LCDC_M, /* LCDC, MIMLB */
492 _2DG_M, /* 2DG, RGPVG */
493 SPI, /* HSPI, RSPI, QSPI */
494 VIN_M, /* VIN0, 1 */
495 SSI, /* SSI 0-3 */
496 USB,
497 SHDMAC,
498 HUDI,
499 MMC,
500 RTC,
501 I2C0, /* I2C */ /* I2C 0, 1*/
502 TMU_3_M, /* TMU30 - TMU80 */
503 TMU_0_M, /* TMU00 - TMU21 */
504 DU } },
505 };
506
507 static struct intc_prio_reg prio_registers[] __initdata = {
508 { 0xFF804000, 0, 32, 8, /* INT2PRI0 */
509 { DU, TMU00, TMU10, TMU20 } },
510 { 0xFF804004, 0, 32, 8, /* INT2PRI1 */
511 { TMU30, TMU60, RTC, SDHI } },
512 { 0xFF804008, 0, 32, 8, /* INT2PRI2 */
513 { HUDI, SHDMAC, USB, SSI } },
514 { 0xFF80400C, 0, 32, 8, /* INT2PRI3 */
515 { VIN0, SPI, _2DG, LBSCATA } },
516 { 0xFF804010, 0, 32, 8, /* INT2PRI4 */
517 { SCIF0, SCIF3, HSCIF, LCDC } },
518 { 0xFF804014, 0, 32, 8, /* INT2PRI5 */
519 { RCAN_P, LBSCDMAC_P, LBSCDMAC2, MMC } },
520 { 0xFF804018, 0, 32, 8, /* INT2PRI6 */
521 { HPBDMAC0_3, HPBDMAC4_10, HPBDMAC11_18, HPBDMAC19_22 } },
522 { 0xFF80401C, 0, 32, 8, /* INT2PRI7 */
523 { HPBDMAC23_25_27_28, I2C0, SRC0, SRC1 } },
524 { 0xFF804020, 0, 32, 8, /* INT2PRI8 */
525 { 0 /* ADIF */, VIN1, RESET_WDT, HIF } },
526 { 0xFF804024, 0, 32, 8, /* INT2PRI9 */
527 { ADMAC, FLCTL, GPIO0_3, GPIO4_5 } },
528 { 0xFF804028, 0, 32, 8, /* INT2PRI10 */
529 { STIF0, STIF1, VEU3F_VE3, GETHER } },
530 { 0xFF80402C, 0, 32, 8, /* INT2PRI11 */
531 { MTU2, RGPVG, MIMLB, IEBUS } },
532 };
533
534 static DECLARE_INTC_DESC(intc_desc, "sh7734", vectors, groups,
535 mask_registers, prio_registers, NULL);
536
537 /* Support for external interrupt pins in IRQ mode */
538
539 static struct intc_vect irq3210_vectors[] __initdata = {
540 INTC_VECT(IRQ0, 0x240), INTC_VECT(IRQ1, 0x280),
541 INTC_VECT(IRQ2, 0x2C0), INTC_VECT(IRQ3, 0x300),
542 };
543
544 static struct intc_sense_reg irq3210_sense_registers[] __initdata = {
545 { 0xFF80201C, 32, 2, /* ICR1 */
546 { IRQ0, IRQ1, IRQ2, IRQ3, } },
547 };
548
549 static struct intc_mask_reg irq3210_ack_registers[] __initdata = {
550 { 0xFF802024, 0, 32, /* INTREQ */
551 { IRQ0, IRQ1, IRQ2, IRQ3, } },
552 };
553
554 static struct intc_mask_reg irq3210_mask_registers[] __initdata = {
555 { 0xFF802044, 0xFF802064, 32, /* INTMSK0 / INTMSKCLR0 */
556 { IRQ0, IRQ1, IRQ2, IRQ3, } },
557 };
558
559 static struct intc_prio_reg irq3210_prio_registers[] __initdata = {
560 { 0xFF802010, 0, 32, 4, /* INTPRI */
561 { IRQ0, IRQ1, IRQ2, IRQ3, } },
562 };
563
564 static DECLARE_INTC_DESC_ACK(intc_desc_irq3210, "sh7734-irq3210",
565 irq3210_vectors, NULL,
566 irq3210_mask_registers, irq3210_prio_registers,
567 irq3210_sense_registers, irq3210_ack_registers);
568
569 /* External interrupt pins in IRL mode */
570
571 static struct intc_vect vectors_irl3210[] __initdata = {
572 INTC_VECT(IRL0_LLLL, 0x200), INTC_VECT(IRL0_LLLH, 0x220),
573 INTC_VECT(IRL0_LLHL, 0x240), INTC_VECT(IRL0_LLHH, 0x260),
574 INTC_VECT(IRL0_LHLL, 0x280), INTC_VECT(IRL0_LHLH, 0x2a0),
575 INTC_VECT(IRL0_LHHL, 0x2c0), INTC_VECT(IRL0_LHHH, 0x2e0),
576 INTC_VECT(IRL0_HLLL, 0x300), INTC_VECT(IRL0_HLLH, 0x320),
577 INTC_VECT(IRL0_HLHL, 0x340), INTC_VECT(IRL0_HLHH, 0x360),
578 INTC_VECT(IRL0_HHLL, 0x380), INTC_VECT(IRL0_HHLH, 0x3a0),
579 INTC_VECT(IRL0_HHHL, 0x3c0),
580 };
581
582 static DECLARE_INTC_DESC(intc_desc_irl3210, "sh7734-irl3210",
583 vectors_irl3210, NULL, mask_registers, NULL, NULL);
584
585 #define INTC_ICR0 0xFF802000
586 #define INTC_INTMSK0 0xFF802044
587 #define INTC_INTMSK1 0xFF802048
588 #define INTC_INTMSKCLR0 0xFF802064
589 #define INTC_INTMSKCLR1 0xFF802068
590
plat_irq_setup(void)591 void __init plat_irq_setup(void)
592 {
593 /* disable IRQ3-0 */
594 __raw_writel(0xF0000000, INTC_INTMSK0);
595
596 /* disable IRL3-0 */
597 __raw_writel(0x80000000, INTC_INTMSK1);
598
599 /* select IRL mode for IRL3-0 */
600 __raw_writel(__raw_readl(INTC_ICR0) & ~0x00800000, INTC_ICR0);
601
602 /* disable holding function, ie enable "SH-4 Mode (LVLMODE)" */
603 __raw_writel(__raw_readl(INTC_ICR0) | 0x00200000, INTC_ICR0);
604
605 register_intc_controller(&intc_desc);
606 }
607
plat_irq_setup_pins(int mode)608 void __init plat_irq_setup_pins(int mode)
609 {
610 switch (mode) {
611 case IRQ_MODE_IRQ3210:
612 /* select IRQ mode for IRL3-0 */
613 __raw_writel(__raw_readl(INTC_ICR0) | 0x00800000, INTC_ICR0);
614 register_intc_controller(&intc_desc_irq3210);
615 break;
616 case IRQ_MODE_IRL3210:
617 /* enable IRL0-3 but don't provide any masking */
618 __raw_writel(0x80000000, INTC_INTMSKCLR1);
619 __raw_writel(0xf0000000, INTC_INTMSKCLR0);
620 break;
621 case IRQ_MODE_IRL3210_MASK:
622 /* enable IRL0-3 and mask using cpu intc controller */
623 __raw_writel(0x80000000, INTC_INTMSKCLR0);
624 register_intc_controller(&intc_desc_irl3210);
625 break;
626 default:
627 BUG();
628 }
629 }
630