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 20 static 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 27 static struct resource scif0_resources[] = { 28 DEFINE_RES_MEM(0xffe00000, 0x100), 29 DEFINE_RES_IRQ(evt2irq(0x700)), 30 }; 31 32 static 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 42 static 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 49 static struct resource scif1_resources[] = { 50 DEFINE_RES_MEM(0xffe10000, 0x100), 51 DEFINE_RES_IRQ(evt2irq(0xb80)), 52 }; 53 54 static 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 64 static struct sh_timer_config tmu0_platform_data = { 65 .channels_mask = 7, 66 }; 67 68 static 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 75 static 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 85 static struct sh_timer_config tmu1_platform_data = { 86 .channels_mask = 7, 87 }; 88 89 static 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 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 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 }; 118 119 static 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 */ 127 static 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 }; 154 155 static 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 }; 170 171 static const unsigned int ts_shift[] = TS_SHIFT; 172 173 static 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 }; 184 185 static 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 }; 196 197 static 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 }; 221 222 static 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 }; 241 242 static 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 }; 251 252 static 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 }; 261 262 static 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 }; 271 272 static int __init sh7780_devices_setup(void) 273 { 274 return platform_add_devices(sh7780_devices, 275 ARRAY_SIZE(sh7780_devices)); 276 } 277 arch_initcall(sh7780_devices_setup); 278 279 static struct platform_device *sh7780_early_devices[] __initdata = { 280 &scif0_device, 281 &scif1_device, 282 &tmu0_device, 283 &tmu1_device, 284 }; 285 286 void __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 } 296 297 enum { 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 }; 317 318 static 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 }; 353 354 static struct intc_group groups[] __initdata = { 355 INTC_GROUP(TMU012, TMU0, TMU1, TMU2, TMU2_TICPI), 356 INTC_GROUP(TMU345, TMU3, TMU4, TMU5), 357 }; 358 359 static 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 }; 366 367 static 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 }; 380 381 static DECLARE_INTC_DESC(intc_desc, "sh7780", vectors, groups, 382 mask_registers, prio_registers, NULL); 383 384 /* Support for external interrupt pins in IRQ mode */ 385 386 static 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 }; 392 393 static struct intc_mask_reg irq_mask_registers[] __initdata = { 394 { 0xffd00044, 0xffd00064, 32, /* INTMSK0 / INTMSKCLR0 */ 395 { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } }, 396 }; 397 398 static struct intc_prio_reg irq_prio_registers[] __initdata = { 399 { 0xffd00010, 0, 32, 4, /* INTPRI */ { IRQ0, IRQ1, IRQ2, IRQ3, 400 IRQ4, IRQ5, IRQ6, IRQ7 } }, 401 }; 402 403 static struct intc_sense_reg irq_sense_registers[] __initdata = { 404 { 0xffd0001c, 32, 2, /* ICR1 */ { IRQ0, IRQ1, IRQ2, IRQ3, 405 IRQ4, IRQ5, IRQ6, IRQ7 } }, 406 }; 407 408 static struct intc_mask_reg irq_ack_registers[] __initdata = { 409 { 0xffd00024, 0, 32, /* INTREQ */ 410 { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } }, 411 }; 412 413 static 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 */ 418 419 static 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 }; 429 430 static 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 }; 437 438 static 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 }; 446 447 static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7780-irl7654", irl_vectors, 448 NULL, irl7654_mask_registers, NULL, NULL); 449 450 static 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 459 460 void __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 } 477 478 void __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