1 /*
2  * SH7780 Setup
3  *
4  *  Copyright (C) 2006  Paul Mundt
5  *
6  * This file is subject to the terms and conditions of the GNU General Public
7  * License.  See the file "COPYING" in the main directory of this archive
8  * for more details.
9  */
10 #include <linux/platform_device.h>
11 #include <linux/init.h>
12 #include <linux/serial.h>
13 #include <linux/io.h>
14 #include <linux/serial_sci.h>
15 #include <linux/sh_dma.h>
16 #include <linux/sh_timer.h>
17 
18 #include <cpu/dma-register.h>
19 
20 static struct plat_sci_port scif0_platform_data = {
21 	.mapbase	= 0xffe00000,
22 	.flags		= UPF_BOOT_AUTOCONF,
23 	.type		= PORT_SCIF,
24 	.irqs		= { 40, 40, 40, 40 },
25 };
26 
27 static struct platform_device scif0_device = {
28 	.name		= "sh-sci",
29 	.id		= 0,
30 	.dev		= {
31 		.platform_data	= &scif0_platform_data,
32 	},
33 };
34 
35 static struct plat_sci_port scif1_platform_data = {
36 	.mapbase	= 0xffe10000,
37 	.flags		= UPF_BOOT_AUTOCONF,
38 	.type		= PORT_SCIF,
39 	.irqs		= { 76, 76, 76, 76 },
40 };
41 
42 static struct platform_device scif1_device = {
43 	.name		= "sh-sci",
44 	.id		= 1,
45 	.dev		= {
46 		.platform_data	= &scif1_platform_data,
47 	},
48 };
49 
50 static struct sh_timer_config tmu0_platform_data = {
51 	.channel_offset = 0x04,
52 	.timer_bit = 0,
53 	.clockevent_rating = 200,
54 };
55 
56 static struct resource tmu0_resources[] = {
57 	[0] = {
58 		.start	= 0xffd80008,
59 		.end	= 0xffd80013,
60 		.flags	= IORESOURCE_MEM,
61 	},
62 	[1] = {
63 		.start	= 28,
64 		.flags	= IORESOURCE_IRQ,
65 	},
66 };
67 
68 static struct platform_device tmu0_device = {
69 	.name		= "sh_tmu",
70 	.id		= 0,
71 	.dev = {
72 		.platform_data	= &tmu0_platform_data,
73 	},
74 	.resource	= tmu0_resources,
75 	.num_resources	= ARRAY_SIZE(tmu0_resources),
76 };
77 
78 static struct sh_timer_config tmu1_platform_data = {
79 	.channel_offset = 0x10,
80 	.timer_bit = 1,
81 	.clocksource_rating = 200,
82 };
83 
84 static struct resource tmu1_resources[] = {
85 	[0] = {
86 		.start	= 0xffd80014,
87 		.end	= 0xffd8001f,
88 		.flags	= IORESOURCE_MEM,
89 	},
90 	[1] = {
91 		.start	= 29,
92 		.flags	= IORESOURCE_IRQ,
93 	},
94 };
95 
96 static struct platform_device tmu1_device = {
97 	.name		= "sh_tmu",
98 	.id		= 1,
99 	.dev = {
100 		.platform_data	= &tmu1_platform_data,
101 	},
102 	.resource	= tmu1_resources,
103 	.num_resources	= ARRAY_SIZE(tmu1_resources),
104 };
105 
106 static struct sh_timer_config tmu2_platform_data = {
107 	.channel_offset = 0x1c,
108 	.timer_bit = 2,
109 };
110 
111 static struct resource tmu2_resources[] = {
112 	[0] = {
113 		.start	= 0xffd80020,
114 		.end	= 0xffd8002f,
115 		.flags	= IORESOURCE_MEM,
116 	},
117 	[1] = {
118 		.start	= 30,
119 		.flags	= IORESOURCE_IRQ,
120 	},
121 };
122 
123 static struct platform_device tmu2_device = {
124 	.name		= "sh_tmu",
125 	.id		= 2,
126 	.dev = {
127 		.platform_data	= &tmu2_platform_data,
128 	},
129 	.resource	= tmu2_resources,
130 	.num_resources	= ARRAY_SIZE(tmu2_resources),
131 };
132 
133 static struct sh_timer_config tmu3_platform_data = {
134 	.channel_offset = 0x04,
135 	.timer_bit = 0,
136 };
137 
138 static struct resource tmu3_resources[] = {
139 	[0] = {
140 		.start	= 0xffdc0008,
141 		.end	= 0xffdc0013,
142 		.flags	= IORESOURCE_MEM,
143 	},
144 	[1] = {
145 		.start	= 96,
146 		.flags	= IORESOURCE_IRQ,
147 	},
148 };
149 
150 static struct platform_device tmu3_device = {
151 	.name		= "sh_tmu",
152 	.id		= 3,
153 	.dev = {
154 		.platform_data	= &tmu3_platform_data,
155 	},
156 	.resource	= tmu3_resources,
157 	.num_resources	= ARRAY_SIZE(tmu3_resources),
158 };
159 
160 static struct sh_timer_config tmu4_platform_data = {
161 	.channel_offset = 0x10,
162 	.timer_bit = 1,
163 };
164 
165 static struct resource tmu4_resources[] = {
166 	[0] = {
167 		.start	= 0xffdc0014,
168 		.end	= 0xffdc001f,
169 		.flags	= IORESOURCE_MEM,
170 	},
171 	[1] = {
172 		.start	= 97,
173 		.flags	= IORESOURCE_IRQ,
174 	},
175 };
176 
177 static struct platform_device tmu4_device = {
178 	.name		= "sh_tmu",
179 	.id		= 4,
180 	.dev = {
181 		.platform_data	= &tmu4_platform_data,
182 	},
183 	.resource	= tmu4_resources,
184 	.num_resources	= ARRAY_SIZE(tmu4_resources),
185 };
186 
187 static struct sh_timer_config tmu5_platform_data = {
188 	.channel_offset = 0x1c,
189 	.timer_bit = 2,
190 };
191 
192 static struct resource tmu5_resources[] = {
193 	[0] = {
194 		.start	= 0xffdc0020,
195 		.end	= 0xffdc002b,
196 		.flags	= IORESOURCE_MEM,
197 	},
198 	[1] = {
199 		.start	= 98,
200 		.flags	= IORESOURCE_IRQ,
201 	},
202 };
203 
204 static struct platform_device tmu5_device = {
205 	.name		= "sh_tmu",
206 	.id		= 5,
207 	.dev = {
208 		.platform_data	= &tmu5_platform_data,
209 	},
210 	.resource	= tmu5_resources,
211 	.num_resources	= ARRAY_SIZE(tmu5_resources),
212 };
213 
214 static struct resource rtc_resources[] = {
215 	[0] = {
216 		.start	= 0xffe80000,
217 		.end	= 0xffe80000 + 0x58 - 1,
218 		.flags	= IORESOURCE_IO,
219 	},
220 	[1] = {
221 		/* Shared Period/Carry/Alarm IRQ */
222 		.start	= 20,
223 		.flags	= IORESOURCE_IRQ,
224 	},
225 };
226 
227 static struct platform_device rtc_device = {
228 	.name		= "sh-rtc",
229 	.id		= -1,
230 	.num_resources	= ARRAY_SIZE(rtc_resources),
231 	.resource	= rtc_resources,
232 };
233 
234 /* DMA */
235 static const struct sh_dmae_channel sh7780_dmae0_channels[] = {
236 	{
237 		.offset = 0,
238 		.dmars = 0,
239 		.dmars_bit = 0,
240 	}, {
241 		.offset = 0x10,
242 		.dmars = 0,
243 		.dmars_bit = 8,
244 	}, {
245 		.offset = 0x20,
246 		.dmars = 4,
247 		.dmars_bit = 0,
248 	}, {
249 		.offset = 0x30,
250 		.dmars = 4,
251 		.dmars_bit = 8,
252 	}, {
253 		.offset = 0x50,
254 		.dmars = 8,
255 		.dmars_bit = 0,
256 	}, {
257 		.offset = 0x60,
258 		.dmars = 8,
259 		.dmars_bit = 8,
260 	}
261 };
262 
263 static const struct sh_dmae_channel sh7780_dmae1_channels[] = {
264 	{
265 		.offset = 0,
266 	}, {
267 		.offset = 0x10,
268 	}, {
269 		.offset = 0x20,
270 	}, {
271 		.offset = 0x30,
272 	}, {
273 		.offset = 0x50,
274 	}, {
275 		.offset = 0x60,
276 	}
277 };
278 
279 static const unsigned int ts_shift[] = TS_SHIFT;
280 
281 static struct sh_dmae_pdata dma0_platform_data = {
282 	.channel	= sh7780_dmae0_channels,
283 	.channel_num	= ARRAY_SIZE(sh7780_dmae0_channels),
284 	.ts_low_shift	= CHCR_TS_LOW_SHIFT,
285 	.ts_low_mask	= CHCR_TS_LOW_MASK,
286 	.ts_high_shift	= CHCR_TS_HIGH_SHIFT,
287 	.ts_high_mask	= CHCR_TS_HIGH_MASK,
288 	.ts_shift	= ts_shift,
289 	.ts_shift_num	= ARRAY_SIZE(ts_shift),
290 	.dmaor_init	= DMAOR_INIT,
291 };
292 
293 static struct sh_dmae_pdata dma1_platform_data = {
294 	.channel	= sh7780_dmae1_channels,
295 	.channel_num	= ARRAY_SIZE(sh7780_dmae1_channels),
296 	.ts_low_shift	= CHCR_TS_LOW_SHIFT,
297 	.ts_low_mask	= CHCR_TS_LOW_MASK,
298 	.ts_high_shift	= CHCR_TS_HIGH_SHIFT,
299 	.ts_high_mask	= CHCR_TS_HIGH_MASK,
300 	.ts_shift	= ts_shift,
301 	.ts_shift_num	= ARRAY_SIZE(ts_shift),
302 	.dmaor_init	= DMAOR_INIT,
303 };
304 
305 static struct resource sh7780_dmae0_resources[] = {
306 	[0] = {
307 		/* Channel registers and DMAOR */
308 		.start	= 0xfc808020,
309 		.end	= 0xfc80808f,
310 		.flags	= IORESOURCE_MEM,
311 	},
312 	[1] = {
313 		/* DMARSx */
314 		.start	= 0xfc809000,
315 		.end	= 0xfc80900b,
316 		.flags	= IORESOURCE_MEM,
317 	},
318 	{
319 		/* Real DMA error IRQ is 38, and channel IRQs are 34-37, 44-45 */
320 		.start	= 34,
321 		.end	= 34,
322 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
323 	},
324 };
325 
326 static struct resource sh7780_dmae1_resources[] = {
327 	[0] = {
328 		/* Channel registers and DMAOR */
329 		.start	= 0xfc818020,
330 		.end	= 0xfc81808f,
331 		.flags	= IORESOURCE_MEM,
332 	},
333 	/* DMAC1 has no DMARS */
334 	{
335 		/* Real DMA error IRQ is 38, and channel IRQs are 46-47, 92-95 */
336 		.start	= 46,
337 		.end	= 46,
338 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
339 	},
340 };
341 
342 static struct platform_device dma0_device = {
343 	.name           = "sh-dma-engine",
344 	.id             = 0,
345 	.resource	= sh7780_dmae0_resources,
346 	.num_resources	= ARRAY_SIZE(sh7780_dmae0_resources),
347 	.dev            = {
348 		.platform_data	= &dma0_platform_data,
349 	},
350 };
351 
352 static struct platform_device dma1_device = {
353 	.name		= "sh-dma-engine",
354 	.id		= 1,
355 	.resource	= sh7780_dmae1_resources,
356 	.num_resources	= ARRAY_SIZE(sh7780_dmae1_resources),
357 	.dev		= {
358 		.platform_data	= &dma1_platform_data,
359 	},
360 };
361 
362 static struct platform_device *sh7780_devices[] __initdata = {
363 	&scif0_device,
364 	&scif1_device,
365 	&tmu0_device,
366 	&tmu1_device,
367 	&tmu2_device,
368 	&tmu3_device,
369 	&tmu4_device,
370 	&tmu5_device,
371 	&rtc_device,
372 	&dma0_device,
373 	&dma1_device,
374 };
375 
376 static int __init sh7780_devices_setup(void)
377 {
378 	return platform_add_devices(sh7780_devices,
379 				    ARRAY_SIZE(sh7780_devices));
380 }
381 arch_initcall(sh7780_devices_setup);
382 static struct platform_device *sh7780_early_devices[] __initdata = {
383 	&scif0_device,
384 	&scif1_device,
385 	&tmu0_device,
386 	&tmu1_device,
387 	&tmu2_device,
388 	&tmu3_device,
389 	&tmu4_device,
390 	&tmu5_device,
391 };
392 
393 void __init plat_early_device_setup(void)
394 {
395 	early_platform_add_devices(sh7780_early_devices,
396 				   ARRAY_SIZE(sh7780_early_devices));
397 }
398 
399 enum {
400 	UNUSED = 0,
401 
402 	/* interrupt sources */
403 
404 	IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
405 	IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
406 	IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
407 	IRL_HHLL, IRL_HHLH, IRL_HHHL,
408 
409 	IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
410 	RTC, WDT, TMU0, TMU1, TMU2, TMU2_TICPI,
411 	HUDI, DMAC0, SCIF0, DMAC1, CMT, HAC,
412 	PCISERR, PCIINTA, PCIINTB, PCIINTC, PCIINTD, PCIC5,
413 	SCIF1, SIOF, HSPI, MMCIF, TMU3, TMU4, TMU5, SSI, FLCTL,	GPIO,
414 
415 	/* interrupt groups */
416 
417 	TMU012,	TMU345,
418 };
419 
420 static struct intc_vect vectors[] __initdata = {
421 	INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
422 	INTC_VECT(RTC, 0x4c0),
423 	INTC_VECT(WDT, 0x560),
424 	INTC_VECT(TMU0, 0x580), INTC_VECT(TMU1, 0x5a0),
425 	INTC_VECT(TMU2, 0x5c0), INTC_VECT(TMU2_TICPI, 0x5e0),
426 	INTC_VECT(HUDI, 0x600),
427 	INTC_VECT(DMAC0, 0x640), INTC_VECT(DMAC0, 0x660),
428 	INTC_VECT(DMAC0, 0x680), INTC_VECT(DMAC0, 0x6a0),
429 	INTC_VECT(DMAC0, 0x6c0),
430 	INTC_VECT(SCIF0, 0x700), INTC_VECT(SCIF0, 0x720),
431 	INTC_VECT(SCIF0, 0x740), INTC_VECT(SCIF0, 0x760),
432 	INTC_VECT(DMAC0, 0x780), INTC_VECT(DMAC0, 0x7a0),
433 	INTC_VECT(DMAC1, 0x7c0), INTC_VECT(DMAC1, 0x7e0),
434 	INTC_VECT(CMT, 0x900), INTC_VECT(HAC, 0x980),
435 	INTC_VECT(PCISERR, 0xa00), INTC_VECT(PCIINTA, 0xa20),
436 	INTC_VECT(PCIINTB, 0xa40), INTC_VECT(PCIINTC, 0xa60),
437 	INTC_VECT(PCIINTD, 0xa80), INTC_VECT(PCIC5, 0xaa0),
438 	INTC_VECT(PCIC5, 0xac0), INTC_VECT(PCIC5, 0xae0),
439 	INTC_VECT(PCIC5, 0xb00), INTC_VECT(PCIC5, 0xb20),
440 	INTC_VECT(SCIF1, 0xb80), INTC_VECT(SCIF1, 0xba0),
441 	INTC_VECT(SCIF1, 0xbc0), INTC_VECT(SCIF1, 0xbe0),
442 	INTC_VECT(SIOF, 0xc00), INTC_VECT(HSPI, 0xc80),
443 	INTC_VECT(MMCIF, 0xd00), INTC_VECT(MMCIF, 0xd20),
444 	INTC_VECT(MMCIF, 0xd40), INTC_VECT(MMCIF, 0xd60),
445 	INTC_VECT(DMAC1, 0xd80), INTC_VECT(DMAC1, 0xda0),
446 	INTC_VECT(DMAC1, 0xdc0), INTC_VECT(DMAC1, 0xde0),
447 	INTC_VECT(TMU3, 0xe00), INTC_VECT(TMU4, 0xe20),
448 	INTC_VECT(TMU5, 0xe40),
449 	INTC_VECT(SSI, 0xe80),
450 	INTC_VECT(FLCTL, 0xf00), INTC_VECT(FLCTL, 0xf20),
451 	INTC_VECT(FLCTL, 0xf40), INTC_VECT(FLCTL, 0xf60),
452 	INTC_VECT(GPIO, 0xf80), INTC_VECT(GPIO, 0xfa0),
453 	INTC_VECT(GPIO, 0xfc0), INTC_VECT(GPIO, 0xfe0),
454 };
455 
456 static struct intc_group groups[] __initdata = {
457 	INTC_GROUP(TMU012, TMU0, TMU1, TMU2, TMU2_TICPI),
458 	INTC_GROUP(TMU345, TMU3, TMU4, TMU5),
459 };
460 
461 static struct intc_mask_reg mask_registers[] __initdata = {
462 	{ 0xffd40038, 0xffd4003c, 32, /* INT2MSKR / INT2MSKCR */
463 	  { 0, 0, 0, 0, 0, 0, GPIO, FLCTL,
464 	    SSI, MMCIF, HSPI, SIOF, PCIC5, PCIINTD, PCIINTC, PCIINTB,
465 	    PCIINTA, PCISERR, HAC, CMT, 0, 0, DMAC1, DMAC0,
466 	    HUDI, 0, WDT, SCIF1, SCIF0, RTC, TMU345, TMU012 } },
467 };
468 
469 static struct intc_prio_reg prio_registers[] __initdata = {
470 	{ 0xffd40000, 0, 32, 8, /* INT2PRI0 */ { TMU0, TMU1,
471 						 TMU2, TMU2_TICPI } },
472 	{ 0xffd40004, 0, 32, 8, /* INT2PRI1 */ { TMU3, TMU4, TMU5, RTC } },
473 	{ 0xffd40008, 0, 32, 8, /* INT2PRI2 */ { SCIF0, SCIF1, WDT } },
474 	{ 0xffd4000c, 0, 32, 8, /* INT2PRI3 */ { HUDI, DMAC0, DMAC1 } },
475 	{ 0xffd40010, 0, 32, 8, /* INT2PRI4 */ { CMT, HAC,
476 						 PCISERR, PCIINTA, } },
477 	{ 0xffd40014, 0, 32, 8, /* INT2PRI5 */ { PCIINTB, PCIINTC,
478 						 PCIINTD, PCIC5 } },
479 	{ 0xffd40018, 0, 32, 8, /* INT2PRI6 */ { SIOF, HSPI, MMCIF, SSI } },
480 	{ 0xffd4001c, 0, 32, 8, /* INT2PRI7 */ { FLCTL, GPIO } },
481 };
482 
483 static DECLARE_INTC_DESC(intc_desc, "sh7780", vectors, groups,
484 			 mask_registers, prio_registers, NULL);
485 
486 /* Support for external interrupt pins in IRQ mode */
487 
488 static struct intc_vect irq_vectors[] __initdata = {
489 	INTC_VECT(IRQ0, 0x240), INTC_VECT(IRQ1, 0x280),
490 	INTC_VECT(IRQ2, 0x2c0), INTC_VECT(IRQ3, 0x300),
491 	INTC_VECT(IRQ4, 0x340), INTC_VECT(IRQ5, 0x380),
492 	INTC_VECT(IRQ6, 0x3c0), INTC_VECT(IRQ7, 0x200),
493 };
494 
495 static struct intc_mask_reg irq_mask_registers[] __initdata = {
496 	{ 0xffd00044, 0xffd00064, 32, /* INTMSK0 / INTMSKCLR0 */
497 	  { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
498 };
499 
500 static struct intc_prio_reg irq_prio_registers[] __initdata = {
501 	{ 0xffd00010, 0, 32, 4, /* INTPRI */ { IRQ0, IRQ1, IRQ2, IRQ3,
502 					       IRQ4, IRQ5, IRQ6, IRQ7 } },
503 };
504 
505 static struct intc_sense_reg irq_sense_registers[] __initdata = {
506 	{ 0xffd0001c, 32, 2, /* ICR1 */   { IRQ0, IRQ1, IRQ2, IRQ3,
507 					    IRQ4, IRQ5, IRQ6, IRQ7 } },
508 };
509 
510 static struct intc_mask_reg irq_ack_registers[] __initdata = {
511 	{ 0xffd00024, 0, 32, /* INTREQ */
512 	  { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
513 };
514 
515 static DECLARE_INTC_DESC_ACK(intc_irq_desc, "sh7780-irq", irq_vectors,
516 			     NULL, irq_mask_registers, irq_prio_registers,
517 			     irq_sense_registers, irq_ack_registers);
518 
519 /* External interrupt pins in IRL mode */
520 
521 static struct intc_vect irl_vectors[] __initdata = {
522 	INTC_VECT(IRL_LLLL, 0x200), INTC_VECT(IRL_LLLH, 0x220),
523 	INTC_VECT(IRL_LLHL, 0x240), INTC_VECT(IRL_LLHH, 0x260),
524 	INTC_VECT(IRL_LHLL, 0x280), INTC_VECT(IRL_LHLH, 0x2a0),
525 	INTC_VECT(IRL_LHHL, 0x2c0), INTC_VECT(IRL_LHHH, 0x2e0),
526 	INTC_VECT(IRL_HLLL, 0x300), INTC_VECT(IRL_HLLH, 0x320),
527 	INTC_VECT(IRL_HLHL, 0x340), INTC_VECT(IRL_HLHH, 0x360),
528 	INTC_VECT(IRL_HHLL, 0x380), INTC_VECT(IRL_HHLH, 0x3a0),
529 	INTC_VECT(IRL_HHHL, 0x3c0),
530 };
531 
532 static struct intc_mask_reg irl3210_mask_registers[] __initdata = {
533 	{ 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
534 	  { IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
535 	    IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
536 	    IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
537 	    IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
538 };
539 
540 static struct intc_mask_reg irl7654_mask_registers[] __initdata = {
541 	{ 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
542 	  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
543 	    IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
544 	    IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
545 	    IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
546 	    IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
547 };
548 
549 static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7780-irl7654", irl_vectors,
550 			 NULL, irl7654_mask_registers, NULL, NULL);
551 
552 static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7780-irl3210", irl_vectors,
553 			 NULL, irl3210_mask_registers, NULL, NULL);
554 
555 #define INTC_ICR0	0xffd00000
556 #define INTC_INTMSK0	0xffd00044
557 #define INTC_INTMSK1	0xffd00048
558 #define INTC_INTMSK2	0xffd40080
559 #define INTC_INTMSKCLR1	0xffd00068
560 #define INTC_INTMSKCLR2	0xffd40084
561 
562 void __init plat_irq_setup(void)
563 {
564 	/* disable IRQ7-0 */
565 	__raw_writel(0xff000000, INTC_INTMSK0);
566 
567 	/* disable IRL3-0 + IRL7-4 */
568 	__raw_writel(0xc0000000, INTC_INTMSK1);
569 	__raw_writel(0xfffefffe, INTC_INTMSK2);
570 
571 	/* select IRL mode for IRL3-0 + IRL7-4 */
572 	__raw_writel(__raw_readl(INTC_ICR0) & ~0x00c00000, INTC_ICR0);
573 
574 	/* disable holding function, ie enable "SH-4 Mode" */
575 	__raw_writel(__raw_readl(INTC_ICR0) | 0x00200000, INTC_ICR0);
576 
577 	register_intc_controller(&intc_desc);
578 }
579 
580 void __init plat_irq_setup_pins(int mode)
581 {
582 	switch (mode) {
583 	case IRQ_MODE_IRQ:
584 		/* select IRQ mode for IRL3-0 + IRL7-4 */
585 		__raw_writel(__raw_readl(INTC_ICR0) | 0x00c00000, INTC_ICR0);
586 		register_intc_controller(&intc_irq_desc);
587 		break;
588 	case IRQ_MODE_IRL7654:
589 		/* enable IRL7-4 but don't provide any masking */
590 		__raw_writel(0x40000000, INTC_INTMSKCLR1);
591 		__raw_writel(0x0000fffe, INTC_INTMSKCLR2);
592 		break;
593 	case IRQ_MODE_IRL3210:
594 		/* enable IRL0-3 but don't provide any masking */
595 		__raw_writel(0x80000000, INTC_INTMSKCLR1);
596 		__raw_writel(0xfffe0000, INTC_INTMSKCLR2);
597 		break;
598 	case IRQ_MODE_IRL7654_MASK:
599 		/* enable IRL7-4 and mask using cpu intc controller */
600 		__raw_writel(0x40000000, INTC_INTMSKCLR1);
601 		register_intc_controller(&intc_irl7654_desc);
602 		break;
603 	case IRQ_MODE_IRL3210_MASK:
604 		/* enable IRL0-3 and mask using cpu intc controller */
605 		__raw_writel(0x80000000, INTC_INTMSKCLR1);
606 		register_intc_controller(&intc_irl3210_desc);
607 		break;
608 	default:
609 		BUG();
610 	}
611 }
612