linux/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
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   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#include <linux/sh_intc.h>
  18#include <cpu/dma-register.h>
  19
  20static struct plat_sci_port scif0_platform_data = {
  21        .flags          = UPF_BOOT_AUTOCONF,
  22        .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
  23        .type           = PORT_SCIF,
  24        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
  25};
  26
  27static struct resource scif0_resources[] = {
  28        DEFINE_RES_MEM(0xffe00000, 0x100),
  29        DEFINE_RES_IRQ(evt2irq(0x700)),
  30};
  31
  32static struct platform_device scif0_device = {
  33        .name           = "sh-sci",
  34        .id             = 0,
  35        .resource       = scif0_resources,
  36        .num_resources  = ARRAY_SIZE(scif0_resources),
  37        .dev            = {
  38                .platform_data  = &scif0_platform_data,
  39        },
  40};
  41
  42static struct plat_sci_port scif1_platform_data = {
  43        .flags          = UPF_BOOT_AUTOCONF,
  44        .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
  45        .type           = PORT_SCIF,
  46        .regtype        = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
  47};
  48
  49static struct resource scif1_resources[] = {
  50        DEFINE_RES_MEM(0xffe10000, 0x100),
  51        DEFINE_RES_IRQ(evt2irq(0xb80)),
  52};
  53
  54static struct platform_device scif1_device = {
  55        .name           = "sh-sci",
  56        .id             = 1,
  57        .resource       = scif1_resources,
  58        .num_resources  = ARRAY_SIZE(scif1_resources),
  59        .dev            = {
  60                .platform_data  = &scif1_platform_data,
  61        },
  62};
  63
  64static struct sh_timer_config tmu0_platform_data = {
  65        .channels_mask = 7,
  66};
  67
  68static struct resource tmu0_resources[] = {
  69        DEFINE_RES_MEM(0xffd80000, 0x30),
  70        DEFINE_RES_IRQ(evt2irq(0x580)),
  71        DEFINE_RES_IRQ(evt2irq(0x5a0)),
  72        DEFINE_RES_IRQ(evt2irq(0x5c0)),
  73};
  74
  75static struct platform_device tmu0_device = {
  76        .name           = "sh-tmu",
  77        .id             = 0,
  78        .dev = {
  79                .platform_data  = &tmu0_platform_data,
  80        },
  81        .resource       = tmu0_resources,
  82        .num_resources  = ARRAY_SIZE(tmu0_resources),
  83};
  84
  85static struct sh_timer_config tmu1_platform_data = {
  86        .channels_mask = 7,
  87};
  88
  89static struct resource tmu1_resources[] = {
  90        DEFINE_RES_MEM(0xffdc0000, 0x2c),
  91        DEFINE_RES_IRQ(evt2irq(0xe00)),
  92        DEFINE_RES_IRQ(evt2irq(0xe20)),
  93        DEFINE_RES_IRQ(evt2irq(0xe40)),
  94};
  95
  96static 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
 106static struct resource rtc_resources[] = {
 107        [0] = {
 108                .start  = 0xffe80000,
 109                .end    = 0xffe80000 + 0x58 - 1,
 110                .flags  = IORESOURCE_IO,
 111        },
 112        [1] = {
 113                /* Shared Period/Carry/Alarm IRQ */
 114                .start  = evt2irq(0x480),
 115                .flags  = IORESOURCE_IRQ,
 116        },
 117};
 118
 119static struct platform_device rtc_device = {
 120        .name           = "sh-rtc",
 121        .id             = -1,
 122        .num_resources  = ARRAY_SIZE(rtc_resources),
 123        .resource       = rtc_resources,
 124};
 125
 126/* DMA */
 127static const struct sh_dmae_channel sh7780_dmae0_channels[] = {
 128        {
 129                .offset = 0,
 130                .dmars = 0,
 131                .dmars_bit = 0,
 132        }, {
 133                .offset = 0x10,
 134                .dmars = 0,
 135                .dmars_bit = 8,
 136        }, {
 137                .offset = 0x20,
 138                .dmars = 4,
 139                .dmars_bit = 0,
 140        }, {
 141                .offset = 0x30,
 142                .dmars = 4,
 143                .dmars_bit = 8,
 144        }, {
 145                .offset = 0x50,
 146                .dmars = 8,
 147                .dmars_bit = 0,
 148        }, {
 149                .offset = 0x60,
 150                .dmars = 8,
 151                .dmars_bit = 8,
 152        }
 153};
 154
 155static const struct sh_dmae_channel sh7780_dmae1_channels[] = {
 156        {
 157                .offset = 0,
 158        }, {
 159                .offset = 0x10,
 160        }, {
 161                .offset = 0x20,
 162        }, {
 163                .offset = 0x30,
 164        }, {
 165                .offset = 0x50,
 166        }, {
 167                .offset = 0x60,
 168        }
 169};
 170
 171static const unsigned int ts_shift[] = TS_SHIFT;
 172
 173static struct sh_dmae_pdata dma0_platform_data = {
 174        .channel        = sh7780_dmae0_channels,
 175        .channel_num    = ARRAY_SIZE(sh7780_dmae0_channels),
 176        .ts_low_shift   = CHCR_TS_LOW_SHIFT,
 177        .ts_low_mask    = CHCR_TS_LOW_MASK,
 178        .ts_high_shift  = CHCR_TS_HIGH_SHIFT,
 179        .ts_high_mask   = CHCR_TS_HIGH_MASK,
 180        .ts_shift       = ts_shift,
 181        .ts_shift_num   = ARRAY_SIZE(ts_shift),
 182        .dmaor_init     = DMAOR_INIT,
 183};
 184
 185static struct sh_dmae_pdata dma1_platform_data = {
 186        .channel        = sh7780_dmae1_channels,
 187        .channel_num    = ARRAY_SIZE(sh7780_dmae1_channels),
 188        .ts_low_shift   = CHCR_TS_LOW_SHIFT,
 189        .ts_low_mask    = CHCR_TS_LOW_MASK,
 190        .ts_high_shift  = CHCR_TS_HIGH_SHIFT,
 191        .ts_high_mask   = CHCR_TS_HIGH_MASK,
 192        .ts_shift       = ts_shift,
 193        .ts_shift_num   = ARRAY_SIZE(ts_shift),
 194        .dmaor_init     = DMAOR_INIT,
 195};
 196
 197static struct resource sh7780_dmae0_resources[] = {
 198        [0] = {
 199                /* Channel registers and DMAOR */
 200                .start  = 0xfc808020,
 201                .end    = 0xfc80808f,
 202                .flags  = IORESOURCE_MEM,
 203        },
 204        [1] = {
 205                /* DMARSx */
 206                .start  = 0xfc809000,
 207                .end    = 0xfc80900b,
 208                .flags  = IORESOURCE_MEM,
 209        },
 210        {
 211                /*
 212                 * Real DMA error vector is 0x6c0, and channel
 213                 * vectors are 0x640-0x6a0, 0x780-0x7a0
 214                 */
 215                .name   = "error_irq",
 216                .start  = evt2irq(0x640),
 217                .end    = evt2irq(0x640),
 218                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
 219        },
 220};
 221
 222static struct resource sh7780_dmae1_resources[] = {
 223        [0] = {
 224                /* Channel registers and DMAOR */
 225                .start  = 0xfc818020,
 226                .end    = 0xfc81808f,
 227                .flags  = IORESOURCE_MEM,
 228        },
 229        /* DMAC1 has no DMARS */
 230        {
 231                /*
 232                 * Real DMA error vector is 0x6c0, and channel
 233                 * vectors are 0x7c0-0x7e0, 0xd80-0xde0
 234                 */
 235                .name   = "error_irq",
 236                .start  = evt2irq(0x7c0),
 237                .end    = evt2irq(0x7c0),
 238                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
 239        },
 240};
 241
 242static struct platform_device dma0_device = {
 243        .name           = "sh-dma-engine",
 244        .id             = 0,
 245        .resource       = sh7780_dmae0_resources,
 246        .num_resources  = ARRAY_SIZE(sh7780_dmae0_resources),
 247        .dev            = {
 248                .platform_data  = &dma0_platform_data,
 249        },
 250};
 251
 252static struct platform_device dma1_device = {
 253        .name           = "sh-dma-engine",
 254        .id             = 1,
 255        .resource       = sh7780_dmae1_resources,
 256        .num_resources  = ARRAY_SIZE(sh7780_dmae1_resources),
 257        .dev            = {
 258                .platform_data  = &dma1_platform_data,
 259        },
 260};
 261
 262static struct platform_device *sh7780_devices[] __initdata = {
 263        &scif0_device,
 264        &scif1_device,
 265        &tmu0_device,
 266        &tmu1_device,
 267        &rtc_device,
 268        &dma0_device,
 269        &dma1_device,
 270};
 271
 272static int __init sh7780_devices_setup(void)
 273{
 274        return platform_add_devices(sh7780_devices,
 275                                    ARRAY_SIZE(sh7780_devices));
 276}
 277arch_initcall(sh7780_devices_setup);
 278
 279static struct platform_device *sh7780_early_devices[] __initdata = {
 280        &scif0_device,
 281        &scif1_device,
 282        &tmu0_device,
 283        &tmu1_device,
 284};
 285
 286void __init plat_early_device_setup(void)
 287{
 288        if (mach_is_sh2007()) {
 289                scif0_platform_data.scscr &= ~SCSCR_CKE1;
 290                scif1_platform_data.scscr &= ~SCSCR_CKE1;
 291        }
 292
 293        early_platform_add_devices(sh7780_early_devices,
 294                                   ARRAY_SIZE(sh7780_early_devices));
 295}
 296
 297enum {
 298        UNUSED = 0,
 299
 300        /* interrupt sources */
 301
 302        IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
 303        IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
 304        IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
 305        IRL_HHLL, IRL_HHLH, IRL_HHHL,
 306
 307        IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
 308        RTC, WDT, TMU0, TMU1, TMU2, TMU2_TICPI,
 309        HUDI, DMAC0, SCIF0, DMAC1, CMT, HAC,
 310        PCISERR, PCIINTA, PCIINTB, PCIINTC, PCIINTD, PCIC5,
 311        SCIF1, SIOF, HSPI, MMCIF, TMU3, TMU4, TMU5, SSI, FLCTL, GPIO,
 312
 313        /* interrupt groups */
 314
 315        TMU012, TMU345,
 316};
 317
 318static struct intc_vect vectors[] __initdata = {
 319        INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
 320        INTC_VECT(RTC, 0x4c0),
 321        INTC_VECT(WDT, 0x560),
 322        INTC_VECT(TMU0, 0x580), INTC_VECT(TMU1, 0x5a0),
 323        INTC_VECT(TMU2, 0x5c0), INTC_VECT(TMU2_TICPI, 0x5e0),
 324        INTC_VECT(HUDI, 0x600),
 325        INTC_VECT(DMAC0, 0x640), INTC_VECT(DMAC0, 0x660),
 326        INTC_VECT(DMAC0, 0x680), INTC_VECT(DMAC0, 0x6a0),
 327        INTC_VECT(DMAC0, 0x6c0),
 328        INTC_VECT(SCIF0, 0x700), INTC_VECT(SCIF0, 0x720),
 329        INTC_VECT(SCIF0, 0x740), INTC_VECT(SCIF0, 0x760),
 330        INTC_VECT(DMAC0, 0x780), INTC_VECT(DMAC0, 0x7a0),
 331        INTC_VECT(DMAC1, 0x7c0), INTC_VECT(DMAC1, 0x7e0),
 332        INTC_VECT(CMT, 0x900), INTC_VECT(HAC, 0x980),
 333        INTC_VECT(PCISERR, 0xa00), INTC_VECT(PCIINTA, 0xa20),
 334        INTC_VECT(PCIINTB, 0xa40), INTC_VECT(PCIINTC, 0xa60),
 335        INTC_VECT(PCIINTD, 0xa80), INTC_VECT(PCIC5, 0xaa0),
 336        INTC_VECT(PCIC5, 0xac0), INTC_VECT(PCIC5, 0xae0),
 337        INTC_VECT(PCIC5, 0xb00), INTC_VECT(PCIC5, 0xb20),
 338        INTC_VECT(SCIF1, 0xb80), INTC_VECT(SCIF1, 0xba0),
 339        INTC_VECT(SCIF1, 0xbc0), INTC_VECT(SCIF1, 0xbe0),
 340        INTC_VECT(SIOF, 0xc00), INTC_VECT(HSPI, 0xc80),
 341        INTC_VECT(MMCIF, 0xd00), INTC_VECT(MMCIF, 0xd20),
 342        INTC_VECT(MMCIF, 0xd40), INTC_VECT(MMCIF, 0xd60),
 343        INTC_VECT(DMAC1, 0xd80), INTC_VECT(DMAC1, 0xda0),
 344        INTC_VECT(DMAC1, 0xdc0), INTC_VECT(DMAC1, 0xde0),
 345        INTC_VECT(TMU3, 0xe00), INTC_VECT(TMU4, 0xe20),
 346        INTC_VECT(TMU5, 0xe40),
 347        INTC_VECT(SSI, 0xe80),
 348        INTC_VECT(FLCTL, 0xf00), INTC_VECT(FLCTL, 0xf20),
 349        INTC_VECT(FLCTL, 0xf40), INTC_VECT(FLCTL, 0xf60),
 350        INTC_VECT(GPIO, 0xf80), INTC_VECT(GPIO, 0xfa0),
 351        INTC_VECT(GPIO, 0xfc0), INTC_VECT(GPIO, 0xfe0),
 352};
 353
 354static struct intc_group groups[] __initdata = {
 355        INTC_GROUP(TMU012, TMU0, TMU1, TMU2, TMU2_TICPI),
 356        INTC_GROUP(TMU345, TMU3, TMU4, TMU5),
 357};
 358
 359static struct intc_mask_reg mask_registers[] __initdata = {
 360        { 0xffd40038, 0xffd4003c, 32, /* INT2MSKR / INT2MSKCR */
 361          { 0, 0, 0, 0, 0, 0, GPIO, FLCTL,
 362            SSI, MMCIF, HSPI, SIOF, PCIC5, PCIINTD, PCIINTC, PCIINTB,
 363            PCIINTA, PCISERR, HAC, CMT, 0, 0, DMAC1, DMAC0,
 364            HUDI, 0, WDT, SCIF1, SCIF0, RTC, TMU345, TMU012 } },
 365};
 366
 367static struct intc_prio_reg prio_registers[] __initdata = {
 368        { 0xffd40000, 0, 32, 8, /* INT2PRI0 */ { TMU0, TMU1,
 369                                                 TMU2, TMU2_TICPI } },
 370        { 0xffd40004, 0, 32, 8, /* INT2PRI1 */ { TMU3, TMU4, TMU5, RTC } },
 371        { 0xffd40008, 0, 32, 8, /* INT2PRI2 */ { SCIF0, SCIF1, WDT } },
 372        { 0xffd4000c, 0, 32, 8, /* INT2PRI3 */ { HUDI, DMAC0, DMAC1 } },
 373        { 0xffd40010, 0, 32, 8, /* INT2PRI4 */ { CMT, HAC,
 374                                                 PCISERR, PCIINTA, } },
 375        { 0xffd40014, 0, 32, 8, /* INT2PRI5 */ { PCIINTB, PCIINTC,
 376                                                 PCIINTD, PCIC5 } },
 377        { 0xffd40018, 0, 32, 8, /* INT2PRI6 */ { SIOF, HSPI, MMCIF, SSI } },
 378        { 0xffd4001c, 0, 32, 8, /* INT2PRI7 */ { FLCTL, GPIO } },
 379};
 380
 381static DECLARE_INTC_DESC(intc_desc, "sh7780", vectors, groups,
 382                         mask_registers, prio_registers, NULL);
 383
 384/* Support for external interrupt pins in IRQ mode */
 385
 386static struct intc_vect irq_vectors[] __initdata = {
 387        INTC_VECT(IRQ0, 0x240), INTC_VECT(IRQ1, 0x280),
 388        INTC_VECT(IRQ2, 0x2c0), INTC_VECT(IRQ3, 0x300),
 389        INTC_VECT(IRQ4, 0x340), INTC_VECT(IRQ5, 0x380),
 390        INTC_VECT(IRQ6, 0x3c0), INTC_VECT(IRQ7, 0x200),
 391};
 392
 393static struct intc_mask_reg irq_mask_registers[] __initdata = {
 394        { 0xffd00044, 0xffd00064, 32, /* INTMSK0 / INTMSKCLR0 */
 395          { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
 396};
 397
 398static struct intc_prio_reg irq_prio_registers[] __initdata = {
 399        { 0xffd00010, 0, 32, 4, /* INTPRI */ { IRQ0, IRQ1, IRQ2, IRQ3,
 400                                               IRQ4, IRQ5, IRQ6, IRQ7 } },
 401};
 402
 403static struct intc_sense_reg irq_sense_registers[] __initdata = {
 404        { 0xffd0001c, 32, 2, /* ICR1 */   { IRQ0, IRQ1, IRQ2, IRQ3,
 405                                            IRQ4, IRQ5, IRQ6, IRQ7 } },
 406};
 407
 408static struct intc_mask_reg irq_ack_registers[] __initdata = {
 409        { 0xffd00024, 0, 32, /* INTREQ */
 410          { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
 411};
 412
 413static DECLARE_INTC_DESC_ACK(intc_irq_desc, "sh7780-irq", irq_vectors,
 414                             NULL, irq_mask_registers, irq_prio_registers,
 415                             irq_sense_registers, irq_ack_registers);
 416
 417/* External interrupt pins in IRL mode */
 418
 419static struct intc_vect irl_vectors[] __initdata = {
 420        INTC_VECT(IRL_LLLL, 0x200), INTC_VECT(IRL_LLLH, 0x220),
 421        INTC_VECT(IRL_LLHL, 0x240), INTC_VECT(IRL_LLHH, 0x260),
 422        INTC_VECT(IRL_LHLL, 0x280), INTC_VECT(IRL_LHLH, 0x2a0),
 423        INTC_VECT(IRL_LHHL, 0x2c0), INTC_VECT(IRL_LHHH, 0x2e0),
 424        INTC_VECT(IRL_HLLL, 0x300), INTC_VECT(IRL_HLLH, 0x320),
 425        INTC_VECT(IRL_HLHL, 0x340), INTC_VECT(IRL_HLHH, 0x360),
 426        INTC_VECT(IRL_HHLL, 0x380), INTC_VECT(IRL_HHLH, 0x3a0),
 427        INTC_VECT(IRL_HHHL, 0x3c0),
 428};
 429
 430static struct intc_mask_reg irl3210_mask_registers[] __initdata = {
 431        { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
 432          { IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
 433            IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
 434            IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
 435            IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
 436};
 437
 438static struct intc_mask_reg irl7654_mask_registers[] __initdata = {
 439        { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
 440          { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 441            IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
 442            IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
 443            IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
 444            IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
 445};
 446
 447static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7780-irl7654", irl_vectors,
 448                         NULL, irl7654_mask_registers, NULL, NULL);
 449
 450static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7780-irl3210", irl_vectors,
 451                         NULL, irl3210_mask_registers, NULL, NULL);
 452
 453#define INTC_ICR0       0xffd00000
 454#define INTC_INTMSK0    0xffd00044
 455#define INTC_INTMSK1    0xffd00048
 456#define INTC_INTMSK2    0xffd40080
 457#define INTC_INTMSKCLR1 0xffd00068
 458#define INTC_INTMSKCLR2 0xffd40084
 459
 460void __init plat_irq_setup(void)
 461{
 462        /* disable IRQ7-0 */
 463        __raw_writel(0xff000000, INTC_INTMSK0);
 464
 465        /* disable IRL3-0 + IRL7-4 */
 466        __raw_writel(0xc0000000, INTC_INTMSK1);
 467        __raw_writel(0xfffefffe, INTC_INTMSK2);
 468
 469        /* select IRL mode for IRL3-0 + IRL7-4 */
 470        __raw_writel(__raw_readl(INTC_ICR0) & ~0x00c00000, INTC_ICR0);
 471
 472        /* disable holding function, ie enable "SH-4 Mode" */
 473        __raw_writel(__raw_readl(INTC_ICR0) | 0x00200000, INTC_ICR0);
 474
 475        register_intc_controller(&intc_desc);
 476}
 477
 478void __init plat_irq_setup_pins(int mode)
 479{
 480        switch (mode) {
 481        case IRQ_MODE_IRQ:
 482                /* select IRQ mode for IRL3-0 + IRL7-4 */
 483                __raw_writel(__raw_readl(INTC_ICR0) | 0x00c00000, INTC_ICR0);
 484                register_intc_controller(&intc_irq_desc);
 485                break;
 486        case IRQ_MODE_IRL7654:
 487                /* enable IRL7-4 but don't provide any masking */
 488                __raw_writel(0x40000000, INTC_INTMSKCLR1);
 489                __raw_writel(0x0000fffe, INTC_INTMSKCLR2);
 490                break;
 491        case IRQ_MODE_IRL3210:
 492                /* enable IRL0-3 but don't provide any masking */
 493                __raw_writel(0x80000000, INTC_INTMSKCLR1);
 494                __raw_writel(0xfffe0000, INTC_INTMSKCLR2);
 495                break;
 496        case IRQ_MODE_IRL7654_MASK:
 497                /* enable IRL7-4 and mask using cpu intc controller */
 498                __raw_writel(0x40000000, INTC_INTMSKCLR1);
 499                register_intc_controller(&intc_irl7654_desc);
 500                break;
 501        case IRQ_MODE_IRL3210_MASK:
 502                /* enable IRL0-3 and mask using cpu intc controller */
 503                __raw_writel(0x80000000, INTC_INTMSKCLR1);
 504                register_intc_controller(&intc_irl3210_desc);
 505                break;
 506        default:
 507                BUG();
 508        }
 509}
 510