arch/sh/kernel/cpu/sh4a/setup-sh7780.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * SH7780 Setup
   4  *
   5  *  Copyright (C) 2006  Paul Mundt
   6  */
   7 #include <linux/platform_device.h>
   8 #include <linux/init.h>
   9 #include <linux/serial.h>
  10 #include <linux/io.h>
  11 #include <linux/serial_sci.h>
  12 #include <linux/sh_dma.h>
  13 #include <linux/sh_timer.h>
  14 #include <linux/sh_intc.h>
  15 #include <cpu/dma-register.h>
  16 #include <asm/platform_early.h>
  17
  18 static struct plat_sci_port scif0_platform_data = {
  19         .scscr          = SCSCR_REIE | SCSCR_CKE1,
  20         .type           = PORT_SCIF,
  21         .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
  22 };
  23
  24 static struct resource scif0_resources[] = {
  25         DEFINE_RES_MEM(0xffe00000, 0x100),
  26         DEFINE_RES_IRQ(evt2irq(0x700)),
  27 };
  28
  29 static struct platform_device scif0_device = {
  30         .name           = "sh-sci",
  31         .id             = 0,
  32         .resource       = scif0_resources,
  33         .num_resources  = ARRAY_SIZE(scif0_resources),
  34         .dev            = {
  35                 .platform_data  = &scif0_platform_data,
  36         },
  37 };
  38
  39 static struct plat_sci_port scif1_platform_data = {
  40         .scscr          = SCSCR_REIE | SCSCR_CKE1,
  41         .type           = PORT_SCIF,
  42         .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
  43 };
  44
  45 static struct resource scif1_resources[] = {
  46         DEFINE_RES_MEM(0xffe10000, 0x100),
  47         DEFINE_RES_IRQ(evt2irq(0xb80)),
  48 };
  49
  50 static struct platform_device scif1_device = {
  51         .name           = "sh-sci",
  52         .id             = 1,
  53         .resource       = scif1_resources,
  54         .num_resources  = ARRAY_SIZE(scif1_resources),
  55         .dev            = {
  56                 .platform_data  = &scif1_platform_data,
  57         },
  58 };
  59
  60 static struct sh_timer_config tmu0_platform_data = {
  61         .channels_mask = 7,
  62 };
  63
  64 static struct resource tmu0_resources[] = {
  65         DEFINE_RES_MEM(0xffd80000, 0x30),
  66         DEFINE_RES_IRQ(evt2irq(0x580)),
  67         DEFINE_RES_IRQ(evt2irq(0x5a0)),
  68         DEFINE_RES_IRQ(evt2irq(0x5c0)),
  69 };
  70
  71 static struct platform_device tmu0_device = {
  72         .name           = "sh-tmu",
  73         .id             = 0,
  74         .dev = {
  75                 .platform_data  = &tmu0_platform_data,
  76         },
  77         .resource       = tmu0_resources,
  78         .num_resources  = ARRAY_SIZE(tmu0_resources),
  79 };
  80
  81 static struct sh_timer_config tmu1_platform_data = {
  82         .channels_mask = 7,
  83 };
  84
  85 static struct resource tmu1_resources[] = {
  86         DEFINE_RES_MEM(0xffdc0000, 0x2c),
  87         DEFINE_RES_IRQ(evt2irq(0xe00)),
  88         DEFINE_RES_IRQ(evt2irq(0xe20)),
  89         DEFINE_RES_IRQ(evt2irq(0xe40)),
  90 };
  91
  92 static struct platform_device tmu1_device = {
  93         .name           = "sh-tmu",
  94         .id             = 1,
  95         .dev = {
  96                 .platform_data  = &tmu1_platform_data,
  97         },
  98         .resource       = tmu1_resources,
  99         .num_resources  = ARRAY_SIZE(tmu1_resources),
 100 };
 101
 102 static struct resource rtc_resources[] = {
 103         [0] = {
 104                 .start  = 0xffe80000,
 105                 .end    = 0xffe80000 + 0x58 - 1,
 106                 .flags  = IORESOURCE_IO,
 107         },
 108         [1] = {
 109                 /* Shared Period/Carry/Alarm IRQ */
 110                 .start  = evt2irq(0x480),
 111                 .flags  = IORESOURCE_IRQ,
 112         },
 113 };
 114
 115 static struct platform_device rtc_device = {
 116         .name           = "sh-rtc",
 117         .id             = -1,
 118         .num_resources  = ARRAY_SIZE(rtc_resources),
 119         .resource       = rtc_resources,
 120 };
 121
 122 /* DMA */
 123 static const struct sh_dmae_channel sh7780_dmae0_channels[] = {
 124         {
 125                 .offset = 0,
 126                 .dmars = 0,
 127                 .dmars_bit = 0,
 128         }, {
 129                 .offset = 0x10,
 130                 .dmars = 0,
 131                 .dmars_bit = 8,
 132         }, {
 133                 .offset = 0x20,
 134                 .dmars = 4,
 135                 .dmars_bit = 0,
 136         }, {
 137                 .offset = 0x30,
 138                 .dmars = 4,
 139                 .dmars_bit = 8,
 140         }, {
 141                 .offset = 0x50,
 142                 .dmars = 8,
 143                 .dmars_bit = 0,
 144         }, {
 145                 .offset = 0x60,
 146                 .dmars = 8,
 147                 .dmars_bit = 8,
 148         }
 149 };
 150
 151 static const struct sh_dmae_channel sh7780_dmae1_channels[] = {
 152         {
 153                 .offset = 0,
 154         }, {
 155                 .offset = 0x10,
 156         }, {
 157                 .offset = 0x20,
 158         }, {
 159                 .offset = 0x30,
 160         }, {
 161                 .offset = 0x50,
 162         }, {
 163                 .offset = 0x60,
 164         }
 165 };
 166
 167 static const unsigned int ts_shift[] = TS_SHIFT;
 168
 169 static struct sh_dmae_pdata dma0_platform_data = {
 170         .channel        = sh7780_dmae0_channels,
 171         .channel_num    = ARRAY_SIZE(sh7780_dmae0_channels),
 172         .ts_low_shift   = CHCR_TS_LOW_SHIFT,
 173         .ts_low_mask    = CHCR_TS_LOW_MASK,
 174         .ts_high_shift  = CHCR_TS_HIGH_SHIFT,
 175         .ts_high_mask   = CHCR_TS_HIGH_MASK,
 176         .ts_shift       = ts_shift,
 177         .ts_shift_num   = ARRAY_SIZE(ts_shift),
 178         .dmaor_init     = DMAOR_INIT,
 179 };
 180
 181 static struct sh_dmae_pdata dma1_platform_data = {
 182         .channel        = sh7780_dmae1_channels,
 183         .channel_num    = ARRAY_SIZE(sh7780_dmae1_channels),
 184         .ts_low_shift   = CHCR_TS_LOW_SHIFT,
 185         .ts_low_mask    = CHCR_TS_LOW_MASK,
 186         .ts_high_shift  = CHCR_TS_HIGH_SHIFT,
 187         .ts_high_mask   = CHCR_TS_HIGH_MASK,
 188         .ts_shift       = ts_shift,
 189         .ts_shift_num   = ARRAY_SIZE(ts_shift),
 190         .dmaor_init     = DMAOR_INIT,
 191 };
 192
 193 static struct resource sh7780_dmae0_resources[] = {
 194         [0] = {
 195                 /* Channel registers and DMAOR */
 196                 .start  = 0xfc808020,
 197                 .end    = 0xfc80808f,
 198                 .flags  = IORESOURCE_MEM,
 199         },
 200         [1] = {
 201                 /* DMARSx */
 202                 .start  = 0xfc809000,
 203                 .end    = 0xfc80900b,
 204                 .flags  = IORESOURCE_MEM,
 205         },
 206         {
 207                 /*
 208                  * Real DMA error vector is 0x6c0, and channel
 209                  * vectors are 0x640-0x6a0, 0x780-0x7a0
 210                  */
 211                 .name   = "error_irq",
 212                 .start  = evt2irq(0x640),
 213                 .end    = evt2irq(0x640),
 214                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
 215         },
 216 };
 217
 218 static struct resource sh7780_dmae1_resources[] = {
 219         [0] = {
 220                 /* Channel registers and DMAOR */
 221                 .start  = 0xfc818020,
 222                 .end    = 0xfc81808f,
 223                 .flags  = IORESOURCE_MEM,
 224         },
 225         /* DMAC1 has no DMARS */
 226         {
 227                 /*
 228                  * Real DMA error vector is 0x6c0, and channel
 229                  * vectors are 0x7c0-0x7e0, 0xd80-0xde0
 230                  */
 231                 .name   = "error_irq",
 232                 .start  = evt2irq(0x7c0),
 233                 .end    = evt2irq(0x7c0),
 234                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
 235         },
 236 };
 237
 238 static struct platform_device dma0_device = {
 239         .name           = "sh-dma-engine",
 240         .id             = 0,
 241         .resource       = sh7780_dmae0_resources,
 242         .num_resources  = ARRAY_SIZE(sh7780_dmae0_resources),
 243         .dev            = {
 244                 .platform_data  = &dma0_platform_data,
 245         },
 246 };
 247
 248 static struct platform_device dma1_device = {
 249         .name           = "sh-dma-engine",
 250         .id             = 1,
 251         .resource       = sh7780_dmae1_resources,
 252         .num_resources  = ARRAY_SIZE(sh7780_dmae1_resources),
 253         .dev            = {
 254                 .platform_data  = &dma1_platform_data,
 255         },
 256 };
 257
 258 static struct platform_device *sh7780_devices[] __initdata = {
 259         &scif0_device,
 260         &scif1_device,
 261         &tmu0_device,
 262         &tmu1_device,
 263         &rtc_device,
 264         &dma0_device,
 265         &dma1_device,
 266 };
 267
 268 static int __init sh7780_devices_setup(void)
 269 {
 270         return platform_add_devices(sh7780_devices,
 271                                     ARRAY_SIZE(sh7780_devices));
 272 }
 273 arch_initcall(sh7780_devices_setup);
 274
 275 static struct platform_device *sh7780_early_devices[] __initdata = {
 276         &scif0_device,
 277         &scif1_device,
 278         &tmu0_device,
 279         &tmu1_device,
 280 };
 281
 282 void __init plat_early_device_setup(void)
 283 {
 284         if (mach_is_sh2007()) {
 285                 scif0_platform_data.scscr &= ~SCSCR_CKE1;
 286                 scif1_platform_data.scscr &= ~SCSCR_CKE1;
 287         }
 288
 289         sh_early_platform_add_devices(sh7780_early_devices,
 290                                    ARRAY_SIZE(sh7780_early_devices));
 291 }
 292
 293 enum {
 294         UNUSED = 0,
 295
 296         /* interrupt sources */
 297
 298         IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
 299         IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
 300         IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
 301         IRL_HHLL, IRL_HHLH, IRL_HHHL,
 302
 303         IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
 304         RTC, WDT, TMU0, TMU1, TMU2, TMU2_TICPI,
 305         HUDI, DMAC0, SCIF0, DMAC1, CMT, HAC,
 306         PCISERR, PCIINTA, PCIINTB, PCIINTC, PCIINTD, PCIC5,
 307         SCIF1, SIOF, HSPI, MMCIF, TMU3, TMU4, TMU5, SSI, FLCTL, GPIO,
 308
 309         /* interrupt groups */
 310
 311         TMU012, TMU345,
 312 };
 313
 314 static struct intc_vect vectors[] __initdata = {
 315         INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
 316         INTC_VECT(RTC, 0x4c0),
 317         INTC_VECT(WDT, 0x560),
 318         INTC_VECT(TMU0, 0x580), INTC_VECT(TMU1, 0x5a0),
 319         INTC_VECT(TMU2, 0x5c0), INTC_VECT(TMU2_TICPI, 0x5e0),
 320         INTC_VECT(HUDI, 0x600),
 321         INTC_VECT(DMAC0, 0x640), INTC_VECT(DMAC0, 0x660),
 322         INTC_VECT(DMAC0, 0x680), INTC_VECT(DMAC0, 0x6a0),
 323         INTC_VECT(DMAC0, 0x6c0),
 324         INTC_VECT(SCIF0, 0x700), INTC_VECT(SCIF0, 0x720),
 325         INTC_VECT(SCIF0, 0x740), INTC_VECT(SCIF0, 0x760),
 326         INTC_VECT(DMAC0, 0x780), INTC_VECT(DMAC0, 0x7a0),
 327         INTC_VECT(DMAC1, 0x7c0), INTC_VECT(DMAC1, 0x7e0),
 328         INTC_VECT(CMT, 0x900), INTC_VECT(HAC, 0x980),
 329         INTC_VECT(PCISERR, 0xa00), INTC_VECT(PCIINTA, 0xa20),
 330         INTC_VECT(PCIINTB, 0xa40), INTC_VECT(PCIINTC, 0xa60),
 331         INTC_VECT(PCIINTD, 0xa80), INTC_VECT(PCIC5, 0xaa0),
 332         INTC_VECT(PCIC5, 0xac0), INTC_VECT(PCIC5, 0xae0),
 333         INTC_VECT(PCIC5, 0xb00), INTC_VECT(PCIC5, 0xb20),
 334         INTC_VECT(SCIF1, 0xb80), INTC_VECT(SCIF1, 0xba0),
 335         INTC_VECT(SCIF1, 0xbc0), INTC_VECT(SCIF1, 0xbe0),
 336         INTC_VECT(SIOF, 0xc00), INTC_VECT(HSPI, 0xc80),
 337         INTC_VECT(MMCIF, 0xd00), INTC_VECT(MMCIF, 0xd20),
 338         INTC_VECT(MMCIF, 0xd40), INTC_VECT(MMCIF, 0xd60),
 339         INTC_VECT(DMAC1, 0xd80), INTC_VECT(DMAC1, 0xda0),
 340         INTC_VECT(DMAC1, 0xdc0), INTC_VECT(DMAC1, 0xde0),
 341         INTC_VECT(TMU3, 0xe00), INTC_VECT(TMU4, 0xe20),
 342         INTC_VECT(TMU5, 0xe40),
 343         INTC_VECT(SSI, 0xe80),
 344         INTC_VECT(FLCTL, 0xf00), INTC_VECT(FLCTL, 0xf20),
 345         INTC_VECT(FLCTL, 0xf40), INTC_VECT(FLCTL, 0xf60),
 346         INTC_VECT(GPIO, 0xf80), INTC_VECT(GPIO, 0xfa0),
 347         INTC_VECT(GPIO, 0xfc0), INTC_VECT(GPIO, 0xfe0),
 348 };
 349
 350 static struct intc_group groups[] __initdata = {
 351         INTC_GROUP(TMU012, TMU0, TMU1, TMU2, TMU2_TICPI),
 352         INTC_GROUP(TMU345, TMU3, TMU4, TMU5),
 353 };
 354
 355 static struct intc_mask_reg mask_registers[] __initdata = {
 356         { 0xffd40038, 0xffd4003c, 32, /* INT2MSKR / INT2MSKCR */
 357           { 0, 0, 0, 0, 0, 0, GPIO, FLCTL,
 358             SSI, MMCIF, HSPI, SIOF, PCIC5, PCIINTD, PCIINTC, PCIINTB,
 359             PCIINTA, PCISERR, HAC, CMT, 0, 0, DMAC1, DMAC0,
 360             HUDI, 0, WDT, SCIF1, SCIF0, RTC, TMU345, TMU012 } },
 361 };
 362
 363 static struct intc_prio_reg prio_registers[] __initdata = {
 364         { 0xffd40000, 0, 32, 8, /* INT2PRI0 */ { TMU0, TMU1,
 365                                                  TMU2, TMU2_TICPI } },
 366         { 0xffd40004, 0, 32, 8, /* INT2PRI1 */ { TMU3, TMU4, TMU5, RTC } },
 367         { 0xffd40008, 0, 32, 8, /* INT2PRI2 */ { SCIF0, SCIF1, WDT } },
 368         { 0xffd4000c, 0, 32, 8, /* INT2PRI3 */ { HUDI, DMAC0, DMAC1 } },
 369         { 0xffd40010, 0, 32, 8, /* INT2PRI4 */ { CMT, HAC,
 370                                                  PCISERR, PCIINTA, } },
 371         { 0xffd40014, 0, 32, 8, /* INT2PRI5 */ { PCIINTB, PCIINTC,
 372                                                  PCIINTD, PCIC5 } },
 373         { 0xffd40018, 0, 32, 8, /* INT2PRI6 */ { SIOF, HSPI, MMCIF, SSI } },
 374         { 0xffd4001c, 0, 32, 8, /* INT2PRI7 */ { FLCTL, GPIO } },
 375 };
 376
 377 static DECLARE_INTC_DESC(intc_desc, "sh7780", vectors, groups,
 378                          mask_registers, prio_registers, NULL);
 379
 380 /* Support for external interrupt pins in IRQ mode */
 381
 382 static struct intc_vect irq_vectors[] __initdata = {
 383         INTC_VECT(IRQ0, 0x240), INTC_VECT(IRQ1, 0x280),
 384         INTC_VECT(IRQ2, 0x2c0), INTC_VECT(IRQ3, 0x300),
 385         INTC_VECT(IRQ4, 0x340), INTC_VECT(IRQ5, 0x380),
 386         INTC_VECT(IRQ6, 0x3c0), INTC_VECT(IRQ7, 0x200),
 387 };
 388
 389 static struct intc_mask_reg irq_mask_registers[] __initdata = {
 390         { 0xffd00044, 0xffd00064, 32, /* INTMSK0 / INTMSKCLR0 */
 391           { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
 392 };
 393
 394 static struct intc_prio_reg irq_prio_registers[] __initdata = {
 395         { 0xffd00010, 0, 32, 4, /* INTPRI */ { IRQ0, IRQ1, IRQ2, IRQ3,
 396                                                IRQ4, IRQ5, IRQ6, IRQ7 } },
 397 };
 398
 399 static struct intc_sense_reg irq_sense_registers[] __initdata = {
 400         { 0xffd0001c, 32, 2, /* ICR1 */   { IRQ0, IRQ1, IRQ2, IRQ3,
 401                                             IRQ4, IRQ5, IRQ6, IRQ7 } },
 402 };
 403
 404 static struct intc_mask_reg irq_ack_registers[] __initdata = {
 405         { 0xffd00024, 0, 32, /* INTREQ */
 406           { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
 407 };
 408
 409 static DECLARE_INTC_DESC_ACK(intc_irq_desc, "sh7780-irq", irq_vectors,
 410                              NULL, irq_mask_registers, irq_prio_registers,
 411                              irq_sense_registers, irq_ack_registers);
 412
 413 /* External interrupt pins in IRL mode */
 414
 415 static struct intc_vect irl_vectors[] __initdata = {
 416         INTC_VECT(IRL_LLLL, 0x200), INTC_VECT(IRL_LLLH, 0x220),
 417         INTC_VECT(IRL_LLHL, 0x240), INTC_VECT(IRL_LLHH, 0x260),
 418         INTC_VECT(IRL_LHLL, 0x280), INTC_VECT(IRL_LHLH, 0x2a0),
 419         INTC_VECT(IRL_LHHL, 0x2c0), INTC_VECT(IRL_LHHH, 0x2e0),
 420         INTC_VECT(IRL_HLLL, 0x300), INTC_VECT(IRL_HLLH, 0x320),
 421         INTC_VECT(IRL_HLHL, 0x340), INTC_VECT(IRL_HLHH, 0x360),
 422         INTC_VECT(IRL_HHLL, 0x380), INTC_VECT(IRL_HHLH, 0x3a0),
 423         INTC_VECT(IRL_HHHL, 0x3c0),
 424 };
 425
 426 static struct intc_mask_reg irl3210_mask_registers[] __initdata = {
 427         { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
 428           { IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
 429             IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
 430             IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
 431             IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
 432 };
 433
 434 static struct intc_mask_reg irl7654_mask_registers[] __initdata = {
 435         { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
 436           { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 437             IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
 438             IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
 439             IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
 440             IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
 441 };
 442
 443 static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7780-irl7654", irl_vectors,
 444                          NULL, irl7654_mask_registers, NULL, NULL);
 445
 446 static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7780-irl3210", irl_vectors,
 447                          NULL, irl3210_mask_registers, NULL, NULL);
 448
 449 #define INTC_ICR0       0xffd00000
 450 #define INTC_INTMSK0    0xffd00044
 451 #define INTC_INTMSK1    0xffd00048
 452 #define INTC_INTMSK2    0xffd40080
 453 #define INTC_INTMSKCLR1 0xffd00068
 454 #define INTC_INTMSKCLR2 0xffd40084
 455
 456 void __init plat_irq_setup(void)
 457 {
 458         /* disable IRQ7-0 */
 459         __raw_writel(0xff000000, INTC_INTMSK0);
 460
 461         /* disable IRL3-0 + IRL7-4 */
 462         __raw_writel(0xc0000000, INTC_INTMSK1);
 463         __raw_writel(0xfffefffe, INTC_INTMSK2);
 464
 465         /* select IRL mode for IRL3-0 + IRL7-4 */
 466         __raw_writel(__raw_readl(INTC_ICR0) & ~0x00c00000, INTC_ICR0);
 467
 468         /* disable holding function, ie enable "SH-4 Mode" */
 469         __raw_writel(__raw_readl(INTC_ICR0) | 0x00200000, INTC_ICR0);
 470
 471         register_intc_controller(&intc_desc);
 472 }
 473
 474 void __init plat_irq_setup_pins(int mode)
 475 {
 476         switch (mode) {
 477         case IRQ_MODE_IRQ:
 478                 /* select IRQ mode for IRL3-0 + IRL7-4 */
 479                 __raw_writel(__raw_readl(INTC_ICR0) | 0x00c00000, INTC_ICR0);
 480                 register_intc_controller(&intc_irq_desc);
 481                 break;
 482         case IRQ_MODE_IRL7654:
 483                 /* enable IRL7-4 but don't provide any masking */
 484                 __raw_writel(0x40000000, INTC_INTMSKCLR1);
 485                 __raw_writel(0x0000fffe, INTC_INTMSKCLR2);
 486                 break;
 487         case IRQ_MODE_IRL3210:
 488                 /* enable IRL0-3 but don't provide any masking */
 489                 __raw_writel(0x80000000, INTC_INTMSKCLR1);
 490                 __raw_writel(0xfffe0000, INTC_INTMSKCLR2);
 491                 break;
 492         case IRQ_MODE_IRL7654_MASK:
 493                 /* enable IRL7-4 and mask using cpu intc controller */
 494                 __raw_writel(0x40000000, INTC_INTMSKCLR1);
 495                 register_intc_controller(&intc_irl7654_desc);
 496                 break;
 497         case IRQ_MODE_IRL3210_MASK:
 498                 /* enable IRL0-3 and mask using cpu intc controller */
 499                 __raw_writel(0x80000000, INTC_INTMSKCLR1);
 500                 register_intc_controller(&intc_irl3210_desc);
 501                 break;
 502         default:
 503                 BUG();
 504         }
 505 }