linux/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
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   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
  18static 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
  24static struct resource scif0_resources[] = {
  25        DEFINE_RES_MEM(0xffe00000, 0x100),
  26        DEFINE_RES_IRQ(evt2irq(0x700)),
  27};
  28
  29static 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
  39static 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
  45static struct resource scif1_resources[] = {
  46        DEFINE_RES_MEM(0xffe10000, 0x100),
  47        DEFINE_RES_IRQ(evt2irq(0xb80)),
  48};
  49
  50static 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
  60static struct sh_timer_config tmu0_platform_data = {
  61        .channels_mask = 7,
  62};
  63
  64static 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
  71static 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
  81static struct sh_timer_config tmu1_platform_data = {
  82        .channels_mask = 7,
  83};
  84
  85static 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
  92static 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
 102static 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
 115static 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 */
 123static 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
 151static 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
 167static const unsigned int ts_shift[] = TS_SHIFT;
 168
 169static 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
 181static 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
 193static 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
 218static 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
 238static 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
 248static 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
 258static 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
 268static int __init sh7780_devices_setup(void)
 269{
 270        return platform_add_devices(sh7780_devices,
 271                                    ARRAY_SIZE(sh7780_devices));
 272}
 273arch_initcall(sh7780_devices_setup);
 274
 275static struct platform_device *sh7780_early_devices[] __initdata = {
 276        &scif0_device,
 277        &scif1_device,
 278        &tmu0_device,
 279        &tmu1_device,
 280};
 281
 282void __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
 293enum {
 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
 314static 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
 350static struct intc_group groups[] __initdata = {
 351        INTC_GROUP(TMU012, TMU0, TMU1, TMU2, TMU2_TICPI),
 352        INTC_GROUP(TMU345, TMU3, TMU4, TMU5),
 353};
 354
 355static 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
 363static 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
 377static 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
 382static 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
 389static 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
 394static 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
 399static struct intc_sense_reg irq_sense_registers[] __initdata = {
 400        { 0xffd0001c, 32, 2, /* ICR1 */   { IRQ0, IRQ1, IRQ2, IRQ3,
 401                                            IRQ4, IRQ5, IRQ6, IRQ7 } },
 402};
 403
 404static struct intc_mask_reg irq_ack_registers[] __initdata = {
 405        { 0xffd00024, 0, 32, /* INTREQ */
 406          { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
 407};
 408
 409static 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
 415static 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
 426static 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
 434static 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
 443static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7780-irl7654", irl_vectors,
 444                         NULL, irl7654_mask_registers, NULL, NULL);
 445
 446static 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
 456void __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
 474void __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}
 506