1 /* 2 * R8A7740 processor support 3 * 4 * Copyright (C) 2011 Renesas Solutions Corp. 5 * Copyright (C) 2011 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; version 2 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 #include <linux/delay.h> 17 #include <linux/dma-mapping.h> 18 #include <linux/kernel.h> 19 #include <linux/init.h> 20 #include <linux/io.h> 21 #include <linux/irqchip.h> 22 #include <linux/irqchip/arm-gic.h> 23 #include <linux/platform_data/irq-renesas-intc-irqpin.h> 24 #include <linux/platform_device.h> 25 #include <linux/of_platform.h> 26 #include <linux/serial_sci.h> 27 #include <linux/sh_dma.h> 28 #include <linux/sh_timer.h> 29 #include <linux/platform_data/sh_ipmmu.h> 30 31 #include <asm/mach-types.h> 32 #include <asm/mach/map.h> 33 #include <asm/mach/arch.h> 34 #include <asm/mach/time.h> 35 #include <asm/hardware/cache-l2x0.h> 36 37 #include "common.h" 38 #include "dma-register.h" 39 #include "irqs.h" 40 #include "pm-rmobile.h" 41 #include "r8a7740.h" 42 43 static struct map_desc r8a7740_io_desc[] __initdata = { 44 /* 45 * for CPGA/INTC/PFC 46 * 0xe6000000-0xefffffff -> 0xe6000000-0xefffffff 47 */ 48 { 49 .virtual = 0xe6000000, 50 .pfn = __phys_to_pfn(0xe6000000), 51 .length = 160 << 20, 52 .type = MT_DEVICE_NONSHARED 53 }, 54 #ifdef CONFIG_CACHE_L2X0 55 /* 56 * for l2x0_init() 57 * 0xf0100000-0xf0101000 -> 0xf0002000-0xf0003000 58 */ 59 { 60 .virtual = 0xf0002000, 61 .pfn = __phys_to_pfn(0xf0100000), 62 .length = PAGE_SIZE, 63 .type = MT_DEVICE_NONSHARED 64 }, 65 #endif 66 }; 67 68 void __init r8a7740_map_io(void) 69 { 70 debug_ll_io_init(); 71 iotable_init(r8a7740_io_desc, ARRAY_SIZE(r8a7740_io_desc)); 72 } 73 74 /* PFC */ 75 static const struct resource pfc_resources[] = { 76 DEFINE_RES_MEM(0xe6050000, 0x8000), 77 DEFINE_RES_MEM(0xe605800c, 0x0020), 78 }; 79 80 void __init r8a7740_pinmux_init(void) 81 { 82 platform_device_register_simple("pfc-r8a7740", -1, pfc_resources, 83 ARRAY_SIZE(pfc_resources)); 84 } 85 86 static struct renesas_intc_irqpin_config irqpin0_platform_data = { 87 .irq_base = irq_pin(0), /* IRQ0 -> IRQ7 */ 88 }; 89 90 static struct resource irqpin0_resources[] = { 91 DEFINE_RES_MEM(0xe6900000, 4), /* ICR1A */ 92 DEFINE_RES_MEM(0xe6900010, 4), /* INTPRI00A */ 93 DEFINE_RES_MEM(0xe6900020, 1), /* INTREQ00A */ 94 DEFINE_RES_MEM(0xe6900040, 1), /* INTMSK00A */ 95 DEFINE_RES_MEM(0xe6900060, 1), /* INTMSKCLR00A */ 96 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ0 */ 97 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ1 */ 98 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ2 */ 99 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ3 */ 100 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ4 */ 101 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ5 */ 102 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ6 */ 103 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ7 */ 104 }; 105 106 static struct platform_device irqpin0_device = { 107 .name = "renesas_intc_irqpin", 108 .id = 0, 109 .resource = irqpin0_resources, 110 .num_resources = ARRAY_SIZE(irqpin0_resources), 111 .dev = { 112 .platform_data = &irqpin0_platform_data, 113 }, 114 }; 115 116 static struct renesas_intc_irqpin_config irqpin1_platform_data = { 117 .irq_base = irq_pin(8), /* IRQ8 -> IRQ15 */ 118 }; 119 120 static struct resource irqpin1_resources[] = { 121 DEFINE_RES_MEM(0xe6900004, 4), /* ICR2A */ 122 DEFINE_RES_MEM(0xe6900014, 4), /* INTPRI10A */ 123 DEFINE_RES_MEM(0xe6900024, 1), /* INTREQ10A */ 124 DEFINE_RES_MEM(0xe6900044, 1), /* INTMSK10A */ 125 DEFINE_RES_MEM(0xe6900064, 1), /* INTMSKCLR10A */ 126 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ8 */ 127 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ9 */ 128 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ10 */ 129 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ11 */ 130 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ12 */ 131 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ13 */ 132 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ14 */ 133 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ15 */ 134 }; 135 136 static struct platform_device irqpin1_device = { 137 .name = "renesas_intc_irqpin", 138 .id = 1, 139 .resource = irqpin1_resources, 140 .num_resources = ARRAY_SIZE(irqpin1_resources), 141 .dev = { 142 .platform_data = &irqpin1_platform_data, 143 }, 144 }; 145 146 static struct renesas_intc_irqpin_config irqpin2_platform_data = { 147 .irq_base = irq_pin(16), /* IRQ16 -> IRQ23 */ 148 }; 149 150 static struct resource irqpin2_resources[] = { 151 DEFINE_RES_MEM(0xe6900008, 4), /* ICR3A */ 152 DEFINE_RES_MEM(0xe6900018, 4), /* INTPRI30A */ 153 DEFINE_RES_MEM(0xe6900028, 1), /* INTREQ30A */ 154 DEFINE_RES_MEM(0xe6900048, 1), /* INTMSK30A */ 155 DEFINE_RES_MEM(0xe6900068, 1), /* INTMSKCLR30A */ 156 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ16 */ 157 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ17 */ 158 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ18 */ 159 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ19 */ 160 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ20 */ 161 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ21 */ 162 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ22 */ 163 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ23 */ 164 }; 165 166 static struct platform_device irqpin2_device = { 167 .name = "renesas_intc_irqpin", 168 .id = 2, 169 .resource = irqpin2_resources, 170 .num_resources = ARRAY_SIZE(irqpin2_resources), 171 .dev = { 172 .platform_data = &irqpin2_platform_data, 173 }, 174 }; 175 176 static struct renesas_intc_irqpin_config irqpin3_platform_data = { 177 .irq_base = irq_pin(24), /* IRQ24 -> IRQ31 */ 178 }; 179 180 static struct resource irqpin3_resources[] = { 181 DEFINE_RES_MEM(0xe690000c, 4), /* ICR3A */ 182 DEFINE_RES_MEM(0xe690001c, 4), /* INTPRI30A */ 183 DEFINE_RES_MEM(0xe690002c, 1), /* INTREQ30A */ 184 DEFINE_RES_MEM(0xe690004c, 1), /* INTMSK30A */ 185 DEFINE_RES_MEM(0xe690006c, 1), /* INTMSKCLR30A */ 186 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ24 */ 187 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ25 */ 188 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ26 */ 189 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ27 */ 190 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ28 */ 191 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ29 */ 192 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ30 */ 193 DEFINE_RES_IRQ(gic_spi(149)), /* IRQ31 */ 194 }; 195 196 static struct platform_device irqpin3_device = { 197 .name = "renesas_intc_irqpin", 198 .id = 3, 199 .resource = irqpin3_resources, 200 .num_resources = ARRAY_SIZE(irqpin3_resources), 201 .dev = { 202 .platform_data = &irqpin3_platform_data, 203 }, 204 }; 205 206 /* SCIF */ 207 #define R8A7740_SCIF(scif_type, index, baseaddr, irq) \ 208 static struct plat_sci_port scif##index##_platform_data = { \ 209 .type = scif_type, \ 210 .flags = UPF_BOOT_AUTOCONF, \ 211 .scscr = SCSCR_RE | SCSCR_TE, \ 212 }; \ 213 \ 214 static struct resource scif##index##_resources[] = { \ 215 DEFINE_RES_MEM(baseaddr, 0x100), \ 216 DEFINE_RES_IRQ(irq), \ 217 }; \ 218 \ 219 static struct platform_device scif##index##_device = { \ 220 .name = "sh-sci", \ 221 .id = index, \ 222 .resource = scif##index##_resources, \ 223 .num_resources = ARRAY_SIZE(scif##index##_resources), \ 224 .dev = { \ 225 .platform_data = &scif##index##_platform_data, \ 226 }, \ 227 } 228 229 R8A7740_SCIF(PORT_SCIFA, 0, 0xe6c40000, gic_spi(100)); 230 R8A7740_SCIF(PORT_SCIFA, 1, 0xe6c50000, gic_spi(101)); 231 R8A7740_SCIF(PORT_SCIFA, 2, 0xe6c60000, gic_spi(102)); 232 R8A7740_SCIF(PORT_SCIFA, 3, 0xe6c70000, gic_spi(103)); 233 R8A7740_SCIF(PORT_SCIFA, 4, 0xe6c80000, gic_spi(104)); 234 R8A7740_SCIF(PORT_SCIFA, 5, 0xe6cb0000, gic_spi(105)); 235 R8A7740_SCIF(PORT_SCIFA, 6, 0xe6cc0000, gic_spi(106)); 236 R8A7740_SCIF(PORT_SCIFA, 7, 0xe6cd0000, gic_spi(107)); 237 R8A7740_SCIF(PORT_SCIFB, 8, 0xe6c30000, gic_spi(108)); 238 239 /* CMT */ 240 static struct sh_timer_config cmt1_platform_data = { 241 .channels_mask = 0x3f, 242 }; 243 244 static struct resource cmt1_resources[] = { 245 DEFINE_RES_MEM(0xe6138000, 0x170), 246 DEFINE_RES_IRQ(gic_spi(58)), 247 }; 248 249 static struct platform_device cmt1_device = { 250 .name = "sh-cmt-48", 251 .id = 1, 252 .dev = { 253 .platform_data = &cmt1_platform_data, 254 }, 255 .resource = cmt1_resources, 256 .num_resources = ARRAY_SIZE(cmt1_resources), 257 }; 258 259 /* TMU */ 260 static struct sh_timer_config tmu0_platform_data = { 261 .channels_mask = 7, 262 }; 263 264 static struct resource tmu0_resources[] = { 265 DEFINE_RES_MEM(0xfff80000, 0x2c), 266 DEFINE_RES_IRQ(gic_spi(198)), 267 DEFINE_RES_IRQ(gic_spi(199)), 268 DEFINE_RES_IRQ(gic_spi(200)), 269 }; 270 271 static struct platform_device tmu0_device = { 272 .name = "sh-tmu", 273 .id = 0, 274 .dev = { 275 .platform_data = &tmu0_platform_data, 276 }, 277 .resource = tmu0_resources, 278 .num_resources = ARRAY_SIZE(tmu0_resources), 279 }; 280 281 /* IPMMUI (an IPMMU module for ICB/LMB) */ 282 static struct resource ipmmu_resources[] = { 283 [0] = { 284 .name = "IPMMUI", 285 .start = 0xfe951000, 286 .end = 0xfe9510ff, 287 .flags = IORESOURCE_MEM, 288 }, 289 }; 290 291 static const char * const ipmmu_dev_names[] = { 292 "sh_mobile_lcdc_fb.0", 293 "sh_mobile_lcdc_fb.1", 294 "sh_mobile_ceu.0", 295 }; 296 297 static struct shmobile_ipmmu_platform_data ipmmu_platform_data = { 298 .dev_names = ipmmu_dev_names, 299 .num_dev_names = ARRAY_SIZE(ipmmu_dev_names), 300 }; 301 302 static struct platform_device ipmmu_device = { 303 .name = "ipmmu", 304 .id = -1, 305 .dev = { 306 .platform_data = &ipmmu_platform_data, 307 }, 308 .resource = ipmmu_resources, 309 .num_resources = ARRAY_SIZE(ipmmu_resources), 310 }; 311 312 static struct platform_device *r8a7740_early_devices[] __initdata = { 313 &scif0_device, 314 &scif1_device, 315 &scif2_device, 316 &scif3_device, 317 &scif4_device, 318 &scif5_device, 319 &scif6_device, 320 &scif7_device, 321 &scif8_device, 322 &irqpin0_device, 323 &irqpin1_device, 324 &irqpin2_device, 325 &irqpin3_device, 326 &tmu0_device, 327 &ipmmu_device, 328 &cmt1_device, 329 }; 330 331 /* DMA */ 332 static const struct sh_dmae_slave_config r8a7740_dmae_slaves[] = { 333 { 334 .slave_id = SHDMA_SLAVE_SDHI0_TX, 335 .addr = 0xe6850030, 336 .chcr = CHCR_TX(XMIT_SZ_16BIT), 337 .mid_rid = 0xc1, 338 }, { 339 .slave_id = SHDMA_SLAVE_SDHI0_RX, 340 .addr = 0xe6850030, 341 .chcr = CHCR_RX(XMIT_SZ_16BIT), 342 .mid_rid = 0xc2, 343 }, { 344 .slave_id = SHDMA_SLAVE_SDHI1_TX, 345 .addr = 0xe6860030, 346 .chcr = CHCR_TX(XMIT_SZ_16BIT), 347 .mid_rid = 0xc9, 348 }, { 349 .slave_id = SHDMA_SLAVE_SDHI1_RX, 350 .addr = 0xe6860030, 351 .chcr = CHCR_RX(XMIT_SZ_16BIT), 352 .mid_rid = 0xca, 353 }, { 354 .slave_id = SHDMA_SLAVE_SDHI2_TX, 355 .addr = 0xe6870030, 356 .chcr = CHCR_TX(XMIT_SZ_16BIT), 357 .mid_rid = 0xcd, 358 }, { 359 .slave_id = SHDMA_SLAVE_SDHI2_RX, 360 .addr = 0xe6870030, 361 .chcr = CHCR_RX(XMIT_SZ_16BIT), 362 .mid_rid = 0xce, 363 }, { 364 .slave_id = SHDMA_SLAVE_FSIA_TX, 365 .addr = 0xfe1f0024, 366 .chcr = CHCR_TX(XMIT_SZ_32BIT), 367 .mid_rid = 0xb1, 368 }, { 369 .slave_id = SHDMA_SLAVE_FSIA_RX, 370 .addr = 0xfe1f0020, 371 .chcr = CHCR_RX(XMIT_SZ_32BIT), 372 .mid_rid = 0xb2, 373 }, { 374 .slave_id = SHDMA_SLAVE_FSIB_TX, 375 .addr = 0xfe1f0064, 376 .chcr = CHCR_TX(XMIT_SZ_32BIT), 377 .mid_rid = 0xb5, 378 }, { 379 .slave_id = SHDMA_SLAVE_MMCIF_TX, 380 .addr = 0xe6bd0034, 381 .chcr = CHCR_TX(XMIT_SZ_32BIT), 382 .mid_rid = 0xd1, 383 }, { 384 .slave_id = SHDMA_SLAVE_MMCIF_RX, 385 .addr = 0xe6bd0034, 386 .chcr = CHCR_RX(XMIT_SZ_32BIT), 387 .mid_rid = 0xd2, 388 }, 389 }; 390 391 #define DMA_CHANNEL(a, b, c) \ 392 { \ 393 .offset = a, \ 394 .dmars = b, \ 395 .dmars_bit = c, \ 396 .chclr_offset = (0x220 - 0x20) + a \ 397 } 398 399 static const struct sh_dmae_channel r8a7740_dmae_channels[] = { 400 DMA_CHANNEL(0x00, 0, 0), 401 DMA_CHANNEL(0x10, 0, 8), 402 DMA_CHANNEL(0x20, 4, 0), 403 DMA_CHANNEL(0x30, 4, 8), 404 DMA_CHANNEL(0x50, 8, 0), 405 DMA_CHANNEL(0x60, 8, 8), 406 }; 407 408 static struct sh_dmae_pdata dma_platform_data = { 409 .slave = r8a7740_dmae_slaves, 410 .slave_num = ARRAY_SIZE(r8a7740_dmae_slaves), 411 .channel = r8a7740_dmae_channels, 412 .channel_num = ARRAY_SIZE(r8a7740_dmae_channels), 413 .ts_low_shift = TS_LOW_SHIFT, 414 .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT, 415 .ts_high_shift = TS_HI_SHIFT, 416 .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT, 417 .ts_shift = dma_ts_shift, 418 .ts_shift_num = ARRAY_SIZE(dma_ts_shift), 419 .dmaor_init = DMAOR_DME, 420 .chclr_present = 1, 421 }; 422 423 /* Resource order important! */ 424 static struct resource r8a7740_dmae0_resources[] = { 425 { 426 /* Channel registers and DMAOR */ 427 .start = 0xfe008020, 428 .end = 0xfe00828f, 429 .flags = IORESOURCE_MEM, 430 }, 431 { 432 /* DMARSx */ 433 .start = 0xfe009000, 434 .end = 0xfe00900b, 435 .flags = IORESOURCE_MEM, 436 }, 437 { 438 .name = "error_irq", 439 .start = gic_spi(34), 440 .end = gic_spi(34), 441 .flags = IORESOURCE_IRQ, 442 }, 443 { 444 /* IRQ for channels 0-5 */ 445 .start = gic_spi(28), 446 .end = gic_spi(33), 447 .flags = IORESOURCE_IRQ, 448 }, 449 }; 450 451 /* Resource order important! */ 452 static struct resource r8a7740_dmae1_resources[] = { 453 { 454 /* Channel registers and DMAOR */ 455 .start = 0xfe018020, 456 .end = 0xfe01828f, 457 .flags = IORESOURCE_MEM, 458 }, 459 { 460 /* DMARSx */ 461 .start = 0xfe019000, 462 .end = 0xfe01900b, 463 .flags = IORESOURCE_MEM, 464 }, 465 { 466 .name = "error_irq", 467 .start = gic_spi(41), 468 .end = gic_spi(41), 469 .flags = IORESOURCE_IRQ, 470 }, 471 { 472 /* IRQ for channels 0-5 */ 473 .start = gic_spi(35), 474 .end = gic_spi(40), 475 .flags = IORESOURCE_IRQ, 476 }, 477 }; 478 479 /* Resource order important! */ 480 static struct resource r8a7740_dmae2_resources[] = { 481 { 482 /* Channel registers and DMAOR */ 483 .start = 0xfe028020, 484 .end = 0xfe02828f, 485 .flags = IORESOURCE_MEM, 486 }, 487 { 488 /* DMARSx */ 489 .start = 0xfe029000, 490 .end = 0xfe02900b, 491 .flags = IORESOURCE_MEM, 492 }, 493 { 494 .name = "error_irq", 495 .start = gic_spi(48), 496 .end = gic_spi(48), 497 .flags = IORESOURCE_IRQ, 498 }, 499 { 500 /* IRQ for channels 0-5 */ 501 .start = gic_spi(42), 502 .end = gic_spi(47), 503 .flags = IORESOURCE_IRQ, 504 }, 505 }; 506 507 static struct platform_device dma0_device = { 508 .name = "sh-dma-engine", 509 .id = 0, 510 .resource = r8a7740_dmae0_resources, 511 .num_resources = ARRAY_SIZE(r8a7740_dmae0_resources), 512 .dev = { 513 .platform_data = &dma_platform_data, 514 }, 515 }; 516 517 static struct platform_device dma1_device = { 518 .name = "sh-dma-engine", 519 .id = 1, 520 .resource = r8a7740_dmae1_resources, 521 .num_resources = ARRAY_SIZE(r8a7740_dmae1_resources), 522 .dev = { 523 .platform_data = &dma_platform_data, 524 }, 525 }; 526 527 static struct platform_device dma2_device = { 528 .name = "sh-dma-engine", 529 .id = 2, 530 .resource = r8a7740_dmae2_resources, 531 .num_resources = ARRAY_SIZE(r8a7740_dmae2_resources), 532 .dev = { 533 .platform_data = &dma_platform_data, 534 }, 535 }; 536 537 /* USB-DMAC */ 538 static const struct sh_dmae_channel r8a7740_usb_dma_channels[] = { 539 { 540 .offset = 0, 541 }, { 542 .offset = 0x20, 543 }, 544 }; 545 546 static const struct sh_dmae_slave_config r8a7740_usb_dma_slaves[] = { 547 { 548 .slave_id = SHDMA_SLAVE_USBHS_TX, 549 .chcr = USBTS_INDEX2VAL(USBTS_XMIT_SZ_8BYTE), 550 }, { 551 .slave_id = SHDMA_SLAVE_USBHS_RX, 552 .chcr = USBTS_INDEX2VAL(USBTS_XMIT_SZ_8BYTE), 553 }, 554 }; 555 556 static struct sh_dmae_pdata usb_dma_platform_data = { 557 .slave = r8a7740_usb_dma_slaves, 558 .slave_num = ARRAY_SIZE(r8a7740_usb_dma_slaves), 559 .channel = r8a7740_usb_dma_channels, 560 .channel_num = ARRAY_SIZE(r8a7740_usb_dma_channels), 561 .ts_low_shift = USBTS_LOW_SHIFT, 562 .ts_low_mask = USBTS_LOW_BIT << USBTS_LOW_SHIFT, 563 .ts_high_shift = USBTS_HI_SHIFT, 564 .ts_high_mask = USBTS_HI_BIT << USBTS_HI_SHIFT, 565 .ts_shift = dma_usbts_shift, 566 .ts_shift_num = ARRAY_SIZE(dma_usbts_shift), 567 .dmaor_init = DMAOR_DME, 568 .chcr_offset = 0x14, 569 .chcr_ie_bit = 1 << 5, 570 .dmaor_is_32bit = 1, 571 .needs_tend_set = 1, 572 .no_dmars = 1, 573 .slave_only = 1, 574 }; 575 576 static struct resource r8a7740_usb_dma_resources[] = { 577 { 578 /* Channel registers and DMAOR */ 579 .start = 0xe68a0020, 580 .end = 0xe68a0064 - 1, 581 .flags = IORESOURCE_MEM, 582 }, 583 { 584 /* VCR/SWR/DMICR */ 585 .start = 0xe68a0000, 586 .end = 0xe68a0014 - 1, 587 .flags = IORESOURCE_MEM, 588 }, 589 { 590 /* IRQ for channels */ 591 .start = gic_spi(49), 592 .end = gic_spi(49), 593 .flags = IORESOURCE_IRQ, 594 }, 595 }; 596 597 static struct platform_device usb_dma_device = { 598 .name = "sh-dma-engine", 599 .id = 3, 600 .resource = r8a7740_usb_dma_resources, 601 .num_resources = ARRAY_SIZE(r8a7740_usb_dma_resources), 602 .dev = { 603 .platform_data = &usb_dma_platform_data, 604 }, 605 }; 606 607 /* I2C */ 608 static struct resource i2c0_resources[] = { 609 [0] = { 610 .name = "IIC0", 611 .start = 0xfff20000, 612 .end = 0xfff20425 - 1, 613 .flags = IORESOURCE_MEM, 614 }, 615 [1] = { 616 .start = gic_spi(201), 617 .end = gic_spi(204), 618 .flags = IORESOURCE_IRQ, 619 }, 620 }; 621 622 static struct resource i2c1_resources[] = { 623 [0] = { 624 .name = "IIC1", 625 .start = 0xe6c20000, 626 .end = 0xe6c20425 - 1, 627 .flags = IORESOURCE_MEM, 628 }, 629 [1] = { 630 .start = gic_spi(70), /* IIC1_ALI1 */ 631 .end = gic_spi(73), /* IIC1_DTEI1 */ 632 .flags = IORESOURCE_IRQ, 633 }, 634 }; 635 636 static struct platform_device i2c0_device = { 637 .name = "i2c-sh_mobile", 638 .id = 0, 639 .resource = i2c0_resources, 640 .num_resources = ARRAY_SIZE(i2c0_resources), 641 }; 642 643 static struct platform_device i2c1_device = { 644 .name = "i2c-sh_mobile", 645 .id = 1, 646 .resource = i2c1_resources, 647 .num_resources = ARRAY_SIZE(i2c1_resources), 648 }; 649 650 static struct resource pmu_resources[] = { 651 [0] = { 652 .start = gic_spi(83), 653 .end = gic_spi(83), 654 .flags = IORESOURCE_IRQ, 655 }, 656 }; 657 658 static struct platform_device pmu_device = { 659 .name = "arm-pmu", 660 .id = -1, 661 .num_resources = ARRAY_SIZE(pmu_resources), 662 .resource = pmu_resources, 663 }; 664 665 static struct platform_device *r8a7740_late_devices[] __initdata = { 666 &i2c0_device, 667 &i2c1_device, 668 &dma0_device, 669 &dma1_device, 670 &dma2_device, 671 &usb_dma_device, 672 &pmu_device, 673 }; 674 675 /* 676 * r8a7740 chip has lasting errata on MERAM buffer. 677 * this is work-around for it. 678 * see 679 * "Media RAM (MERAM)" on r8a7740 documentation 680 */ 681 #define MEBUFCNTR 0xFE950098 682 void __init r8a7740_meram_workaround(void) 683 { 684 void __iomem *reg; 685 686 reg = ioremap_nocache(MEBUFCNTR, 4); 687 if (reg) { 688 iowrite32(0x01600164, reg); 689 iounmap(reg); 690 } 691 } 692 693 #define ICCR 0x0004 694 #define ICSTART 0x0070 695 696 #define i2c_read(reg, offset) ioread8(reg + offset) 697 #define i2c_write(reg, offset, data) iowrite8(data, reg + offset) 698 699 /* 700 * r8a7740 chip has lasting errata on I2C I/O pad reset. 701 * this is work-around for it. 702 */ 703 static void r8a7740_i2c_workaround(struct platform_device *pdev) 704 { 705 struct resource *res; 706 void __iomem *reg; 707 708 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 709 if (unlikely(!res)) { 710 pr_err("r8a7740 i2c workaround fail (cannot find resource)\n"); 711 return; 712 } 713 714 reg = ioremap(res->start, resource_size(res)); 715 if (unlikely(!reg)) { 716 pr_err("r8a7740 i2c workaround fail (cannot map IO)\n"); 717 return; 718 } 719 720 i2c_write(reg, ICCR, i2c_read(reg, ICCR) | 0x80); 721 i2c_read(reg, ICCR); /* dummy read */ 722 723 i2c_write(reg, ICSTART, i2c_read(reg, ICSTART) | 0x10); 724 i2c_read(reg, ICSTART); /* dummy read */ 725 726 udelay(10); 727 728 i2c_write(reg, ICCR, 0x01); 729 i2c_write(reg, ICSTART, 0x00); 730 731 udelay(10); 732 733 i2c_write(reg, ICCR, 0x10); 734 udelay(10); 735 i2c_write(reg, ICCR, 0x00); 736 udelay(10); 737 i2c_write(reg, ICCR, 0x10); 738 udelay(10); 739 740 iounmap(reg); 741 } 742 743 void __init r8a7740_add_standard_devices(void) 744 { 745 static struct pm_domain_device domain_devices[] __initdata = { 746 { "A4R", &tmu0_device }, 747 { "A4R", &i2c0_device }, 748 { "A4S", &irqpin0_device }, 749 { "A4S", &irqpin1_device }, 750 { "A4S", &irqpin2_device }, 751 { "A4S", &irqpin3_device }, 752 { "A3SP", &scif0_device }, 753 { "A3SP", &scif1_device }, 754 { "A3SP", &scif2_device }, 755 { "A3SP", &scif3_device }, 756 { "A3SP", &scif4_device }, 757 { "A3SP", &scif5_device }, 758 { "A3SP", &scif6_device }, 759 { "A3SP", &scif7_device }, 760 { "A3SP", &scif8_device }, 761 { "A3SP", &i2c1_device }, 762 { "A3SP", &ipmmu_device }, 763 { "A3SP", &dma0_device }, 764 { "A3SP", &dma1_device }, 765 { "A3SP", &dma2_device }, 766 { "A3SP", &usb_dma_device }, 767 }; 768 769 /* I2C work-around */ 770 r8a7740_i2c_workaround(&i2c0_device); 771 r8a7740_i2c_workaround(&i2c1_device); 772 773 r8a7740_init_pm_domains(); 774 775 /* add devices */ 776 platform_add_devices(r8a7740_early_devices, 777 ARRAY_SIZE(r8a7740_early_devices)); 778 platform_add_devices(r8a7740_late_devices, 779 ARRAY_SIZE(r8a7740_late_devices)); 780 781 /* add devices to PM domain */ 782 rmobile_add_devices_to_domains(domain_devices, 783 ARRAY_SIZE(domain_devices)); 784 } 785 786 void __init r8a7740_add_early_devices(void) 787 { 788 early_platform_add_devices(r8a7740_early_devices, 789 ARRAY_SIZE(r8a7740_early_devices)); 790 791 /* setup early console here as well */ 792 shmobile_setup_console(); 793 } 794 795 #ifdef CONFIG_USE_OF 796 797 void __init r8a7740_init_irq_of(void) 798 { 799 void __iomem *intc_prio_base = ioremap_nocache(0xe6900010, 0x10); 800 void __iomem *intc_msk_base = ioremap_nocache(0xe6900040, 0x10); 801 void __iomem *pfc_inta_ctrl = ioremap_nocache(0xe605807c, 0x4); 802 803 #ifdef CONFIG_ARCH_SHMOBILE_LEGACY 804 void __iomem *gic_dist_base = ioremap_nocache(0xc2800000, 0x1000); 805 void __iomem *gic_cpu_base = ioremap_nocache(0xc2000000, 0x1000); 806 807 gic_init(0, 29, gic_dist_base, gic_cpu_base); 808 #else 809 irqchip_init(); 810 #endif 811 812 /* route signals to GIC */ 813 iowrite32(0x0, pfc_inta_ctrl); 814 815 /* 816 * To mask the shared interrupt to SPI 149 we must ensure to set 817 * PRIO *and* MASK. Else we run into IRQ floods when registering 818 * the intc_irqpin devices 819 */ 820 iowrite32(0x0, intc_prio_base + 0x0); 821 iowrite32(0x0, intc_prio_base + 0x4); 822 iowrite32(0x0, intc_prio_base + 0x8); 823 iowrite32(0x0, intc_prio_base + 0xc); 824 iowrite8(0xff, intc_msk_base + 0x0); 825 iowrite8(0xff, intc_msk_base + 0x4); 826 iowrite8(0xff, intc_msk_base + 0x8); 827 iowrite8(0xff, intc_msk_base + 0xc); 828 829 iounmap(intc_prio_base); 830 iounmap(intc_msk_base); 831 iounmap(pfc_inta_ctrl); 832 } 833 834 static void __init r8a7740_generic_init(void) 835 { 836 r8a7740_meram_workaround(); 837 838 #ifdef CONFIG_CACHE_L2X0 839 /* Shared attribute override enable, 32K*8way */ 840 l2x0_init(IOMEM(0xf0002000), 0x00400000, 0xc20f0fff); 841 #endif 842 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); 843 } 844 845 #define RESCNT2 IOMEM(0xe6188020) 846 static void r8a7740_restart(enum reboot_mode mode, const char *cmd) 847 { 848 /* Do soft power on reset */ 849 writel(1 << 31, RESCNT2); 850 } 851 852 static const char *r8a7740_boards_compat_dt[] __initdata = { 853 "renesas,r8a7740", 854 NULL, 855 }; 856 857 DT_MACHINE_START(R8A7740_DT, "Generic R8A7740 (Flattened Device Tree)") 858 .map_io = r8a7740_map_io, 859 .init_early = shmobile_init_delay, 860 .init_irq = r8a7740_init_irq_of, 861 .init_machine = r8a7740_generic_init, 862 .init_late = shmobile_init_late, 863 .dt_compat = r8a7740_boards_compat_dt, 864 .restart = r8a7740_restart, 865 MACHINE_END 866 867 #endif /* CONFIG_USE_OF */ 868