arch/arm/mach-shmobile/setup-r8a7779.c

   1 /*
   2  * r8a7779 processor support
   3  *
   4  * Copyright (C) 2011, 2013  Renesas Solutions Corp.
   5  * Copyright (C) 2011  Magnus Damm
   6  * Copyright (C) 2013  Cogent Embedded, Inc.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; version 2 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21 #include <linux/kernel.h>
  22 #include <linux/init.h>
  23 #include <linux/interrupt.h>
  24 #include <linux/irq.h>
  25 #include <linux/of_platform.h>
  26 #include <linux/platform_data/gpio-rcar.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/delay.h>
  29 #include <linux/input.h>
  30 #include <linux/io.h>
  31 #include <linux/serial_sci.h>
  32 #include <linux/sh_intc.h>
  33 #include <linux/sh_timer.h>
  34 #include <linux/dma-mapping.h>
  35 #include <mach/hardware.h>
  36 #include <mach/irqs.h>
  37 #include <mach/r8a7779.h>
  38 #include <mach/common.h>
  39 #include <asm/mach-types.h>
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/time.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/hardware/cache-l2x0.h>
  44
  45 static struct map_desc r8a7779_io_desc[] __initdata = {
  46         /* 2M entity map for 0xf0000000 (MPCORE) */
  47         {
  48                 .virtual        = 0xf0000000,
  49                 .pfn            = __phys_to_pfn(0xf0000000),
  50                 .length         = SZ_2M,
  51                 .type           = MT_DEVICE_NONSHARED
  52         },
  53         /* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
  54         {
  55                 .virtual        = 0xfe000000,
  56                 .pfn            = __phys_to_pfn(0xfe000000),
  57                 .length         = SZ_16M,
  58                 .type           = MT_DEVICE_NONSHARED
  59         },
  60 };
  61
  62 void __init r8a7779_map_io(void)
  63 {
  64         iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));
  65 }
  66
  67 static struct resource r8a7779_pfc_resources[] = {
  68         [0] = {
  69                 .start  = 0xfffc0000,
  70                 .end    = 0xfffc023b,
  71                 .flags  = IORESOURCE_MEM,
  72         },
  73 };
  74
  75 static struct platform_device r8a7779_pfc_device = {
  76         .name           = "pfc-r8a7779",
  77         .id             = -1,
  78         .resource       = r8a7779_pfc_resources,
  79         .num_resources  = ARRAY_SIZE(r8a7779_pfc_resources),
  80 };
  81
  82 #define R8A7779_GPIO(idx, npins) \
  83 static struct resource r8a7779_gpio##idx##_resources[] = {              \
  84         [0] = {                                                         \
  85                 .start  = 0xffc40000 + 0x1000 * (idx),                  \
  86                 .end    = 0xffc4002b + 0x1000 * (idx),                  \
  87                 .flags  = IORESOURCE_MEM,                               \
  88         },                                                              \
  89         [1] = {                                                         \
  90                 .start  = gic_iid(0xad + (idx)),                        \
  91                 .flags  = IORESOURCE_IRQ,                               \
  92         }                                                               \
  93 };                                                                      \
  94                                                                         \
  95 static struct gpio_rcar_config r8a7779_gpio##idx##_platform_data = {    \
  96         .gpio_base      = 32 * (idx),                                   \
  97         .irq_base       = 0,                                            \
  98         .number_of_pins = npins,                                        \
  99         .pctl_name      = "pfc-r8a7779",                                \
 100 };                                                                      \
 101                                                                         \
 102 static struct platform_device r8a7779_gpio##idx##_device = {            \
 103         .name           = "gpio_rcar",                                  \
 104         .id             = idx,                                          \
 105         .resource       = r8a7779_gpio##idx##_resources,                \
 106         .num_resources  = ARRAY_SIZE(r8a7779_gpio##idx##_resources),    \
 107         .dev            = {                                             \
 108                 .platform_data  = &r8a7779_gpio##idx##_platform_data,   \
 109         },                                                              \
 110 }
 111
 112 R8A7779_GPIO(0, 32);
 113 R8A7779_GPIO(1, 32);
 114 R8A7779_GPIO(2, 32);
 115 R8A7779_GPIO(3, 32);
 116 R8A7779_GPIO(4, 32);
 117 R8A7779_GPIO(5, 32);
 118 R8A7779_GPIO(6, 9);
 119
 120 static struct platform_device *r8a7779_pinctrl_devices[] __initdata = {
 121         &r8a7779_pfc_device,
 122         &r8a7779_gpio0_device,
 123         &r8a7779_gpio1_device,
 124         &r8a7779_gpio2_device,
 125         &r8a7779_gpio3_device,
 126         &r8a7779_gpio4_device,
 127         &r8a7779_gpio5_device,
 128         &r8a7779_gpio6_device,
 129 };
 130
 131 void __init r8a7779_pinmux_init(void)
 132 {
 133         platform_add_devices(r8a7779_pinctrl_devices,
 134                             ARRAY_SIZE(r8a7779_pinctrl_devices));
 135 }
 136
 137 static struct plat_sci_port scif0_platform_data = {
 138         .mapbase        = 0xffe40000,
 139         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 140         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 141         .scbrr_algo_id  = SCBRR_ALGO_2,
 142         .type           = PORT_SCIF,
 143         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x78)),
 144 };
 145
 146 static struct platform_device scif0_device = {
 147         .name           = "sh-sci",
 148         .id             = 0,
 149         .dev            = {
 150                 .platform_data  = &scif0_platform_data,
 151         },
 152 };
 153
 154 static struct plat_sci_port scif1_platform_data = {
 155         .mapbase        = 0xffe41000,
 156         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 157         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 158         .scbrr_algo_id  = SCBRR_ALGO_2,
 159         .type           = PORT_SCIF,
 160         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x79)),
 161 };
 162
 163 static struct platform_device scif1_device = {
 164         .name           = "sh-sci",
 165         .id             = 1,
 166         .dev            = {
 167                 .platform_data  = &scif1_platform_data,
 168         },
 169 };
 170
 171 static struct plat_sci_port scif2_platform_data = {
 172         .mapbase        = 0xffe42000,
 173         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 174         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 175         .scbrr_algo_id  = SCBRR_ALGO_2,
 176         .type           = PORT_SCIF,
 177         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x7a)),
 178 };
 179
 180 static struct platform_device scif2_device = {
 181         .name           = "sh-sci",
 182         .id             = 2,
 183         .dev            = {
 184                 .platform_data  = &scif2_platform_data,
 185         },
 186 };
 187
 188 static struct plat_sci_port scif3_platform_data = {
 189         .mapbase        = 0xffe43000,
 190         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 191         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 192         .scbrr_algo_id  = SCBRR_ALGO_2,
 193         .type           = PORT_SCIF,
 194         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x7b)),
 195 };
 196
 197 static struct platform_device scif3_device = {
 198         .name           = "sh-sci",
 199         .id             = 3,
 200         .dev            = {
 201                 .platform_data  = &scif3_platform_data,
 202         },
 203 };
 204
 205 static struct plat_sci_port scif4_platform_data = {
 206         .mapbase        = 0xffe44000,
 207         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 208         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 209         .scbrr_algo_id  = SCBRR_ALGO_2,
 210         .type           = PORT_SCIF,
 211         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x7c)),
 212 };
 213
 214 static struct platform_device scif4_device = {
 215         .name           = "sh-sci",
 216         .id             = 4,
 217         .dev            = {
 218                 .platform_data  = &scif4_platform_data,
 219         },
 220 };
 221
 222 static struct plat_sci_port scif5_platform_data = {
 223         .mapbase        = 0xffe45000,
 224         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 225         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 226         .scbrr_algo_id  = SCBRR_ALGO_2,
 227         .type           = PORT_SCIF,
 228         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x7d)),
 229 };
 230
 231 static struct platform_device scif5_device = {
 232         .name           = "sh-sci",
 233         .id             = 5,
 234         .dev            = {
 235                 .platform_data  = &scif5_platform_data,
 236         },
 237 };
 238
 239 /* TMU */
 240 static struct sh_timer_config tmu00_platform_data = {
 241         .name = "TMU00",
 242         .channel_offset = 0x4,
 243         .timer_bit = 0,
 244         .clockevent_rating = 200,
 245 };
 246
 247 static struct resource tmu00_resources[] = {
 248         [0] = {
 249                 .name   = "TMU00",
 250                 .start  = 0xffd80008,
 251                 .end    = 0xffd80013,
 252                 .flags  = IORESOURCE_MEM,
 253         },
 254         [1] = {
 255                 .start  = gic_iid(0x40),
 256                 .flags  = IORESOURCE_IRQ,
 257         },
 258 };
 259
 260 static struct platform_device tmu00_device = {
 261         .name           = "sh_tmu",
 262         .id             = 0,
 263         .dev = {
 264                 .platform_data  = &tmu00_platform_data,
 265         },
 266         .resource       = tmu00_resources,
 267         .num_resources  = ARRAY_SIZE(tmu00_resources),
 268 };
 269
 270 static struct sh_timer_config tmu01_platform_data = {
 271         .name = "TMU01",
 272         .channel_offset = 0x10,
 273         .timer_bit = 1,
 274         .clocksource_rating = 200,
 275 };
 276
 277 static struct resource tmu01_resources[] = {
 278         [0] = {
 279                 .name   = "TMU01",
 280                 .start  = 0xffd80014,
 281                 .end    = 0xffd8001f,
 282                 .flags  = IORESOURCE_MEM,
 283         },
 284         [1] = {
 285                 .start  = gic_iid(0x41),
 286                 .flags  = IORESOURCE_IRQ,
 287         },
 288 };
 289
 290 static struct platform_device tmu01_device = {
 291         .name           = "sh_tmu",
 292         .id             = 1,
 293         .dev = {
 294                 .platform_data  = &tmu01_platform_data,
 295         },
 296         .resource       = tmu01_resources,
 297         .num_resources  = ARRAY_SIZE(tmu01_resources),
 298 };
 299
 300 /* I2C */
 301 static struct resource rcar_i2c0_res[] = {
 302         {
 303                 .start  = 0xffc70000,
 304                 .end    = 0xffc70fff,
 305                 .flags  = IORESOURCE_MEM,
 306         }, {
 307                 .start  = gic_iid(0x6f),
 308                 .flags  = IORESOURCE_IRQ,
 309         },
 310 };
 311
 312 static struct platform_device i2c0_device = {
 313         .name           = "i2c-rcar",
 314         .id             = 0,
 315         .resource       = rcar_i2c0_res,
 316         .num_resources  = ARRAY_SIZE(rcar_i2c0_res),
 317 };
 318
 319 static struct resource rcar_i2c1_res[] = {
 320         {
 321                 .start  = 0xffc71000,
 322                 .end    = 0xffc71fff,
 323                 .flags  = IORESOURCE_MEM,
 324         }, {
 325                 .start  = gic_iid(0x72),
 326                 .flags  = IORESOURCE_IRQ,
 327         },
 328 };
 329
 330 static struct platform_device i2c1_device = {
 331         .name           = "i2c-rcar",
 332         .id             = 1,
 333         .resource       = rcar_i2c1_res,
 334         .num_resources  = ARRAY_SIZE(rcar_i2c1_res),
 335 };
 336
 337 static struct resource rcar_i2c2_res[] = {
 338         {
 339                 .start  = 0xffc72000,
 340                 .end    = 0xffc72fff,
 341                 .flags  = IORESOURCE_MEM,
 342         }, {
 343                 .start  = gic_iid(0x70),
 344                 .flags  = IORESOURCE_IRQ,
 345         },
 346 };
 347
 348 static struct platform_device i2c2_device = {
 349         .name           = "i2c-rcar",
 350         .id             = 2,
 351         .resource       = rcar_i2c2_res,
 352         .num_resources  = ARRAY_SIZE(rcar_i2c2_res),
 353 };
 354
 355 static struct resource rcar_i2c3_res[] = {
 356         {
 357                 .start  = 0xffc73000,
 358                 .end    = 0xffc73fff,
 359                 .flags  = IORESOURCE_MEM,
 360         }, {
 361                 .start  = gic_iid(0x71),
 362                 .flags  = IORESOURCE_IRQ,
 363         },
 364 };
 365
 366 static struct platform_device i2c3_device = {
 367         .name           = "i2c-rcar",
 368         .id             = 3,
 369         .resource       = rcar_i2c3_res,
 370         .num_resources  = ARRAY_SIZE(rcar_i2c3_res),
 371 };
 372
 373 static struct resource sata_resources[] = {
 374         [0] = {
 375                 .name   = "rcar-sata",
 376                 .start  = 0xfc600000,
 377                 .end    = 0xfc601fff,
 378                 .flags  = IORESOURCE_MEM,
 379         },
 380         [1] = {
 381                 .start  = gic_iid(0x84),
 382                 .flags  = IORESOURCE_IRQ,
 383         },
 384 };
 385
 386 static struct platform_device sata_device = {
 387         .name           = "sata_rcar",
 388         .id             = -1,
 389         .resource       = sata_resources,
 390         .num_resources  = ARRAY_SIZE(sata_resources),
 391         .dev            = {
 392                 .dma_mask               = &sata_device.dev.coherent_dma_mask,
 393                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 394         },
 395 };
 396
 397 /* Ether */
 398 static struct resource ether_resources[] = {
 399         {
 400                 .start  = 0xfde00000,
 401                 .end    = 0xfde003ff,
 402                 .flags  = IORESOURCE_MEM,
 403         }, {
 404                 .start  = gic_iid(0xb4),
 405                 .flags  = IORESOURCE_IRQ,
 406         },
 407 };
 408
 409 static struct platform_device *r8a7779_devices_dt[] __initdata = {
 410         &scif0_device,
 411         &scif1_device,
 412         &scif2_device,
 413         &scif3_device,
 414         &scif4_device,
 415         &scif5_device,
 416         &tmu00_device,
 417         &tmu01_device,
 418 };
 419
 420 static struct platform_device *r8a7779_late_devices[] __initdata = {
 421         &i2c0_device,
 422         &i2c1_device,
 423         &i2c2_device,
 424         &i2c3_device,
 425         &sata_device,
 426 };
 427
 428 void __init r8a7779_add_standard_devices(void)
 429 {
 430 #ifdef CONFIG_CACHE_L2X0
 431         /* Early BRESP enable, Shared attribute override enable, 64K*16way */
 432         l2x0_init(IOMEM(0xf0100000), 0x40470000, 0x82000fff);
 433 #endif
 434         r8a7779_pm_init();
 435
 436         r8a7779_init_pm_domains();
 437
 438         platform_add_devices(r8a7779_devices_dt,
 439                             ARRAY_SIZE(r8a7779_devices_dt));
 440         platform_add_devices(r8a7779_late_devices,
 441                             ARRAY_SIZE(r8a7779_late_devices));
 442 }
 443
 444 void __init r8a7779_add_ether_device(struct sh_eth_plat_data *pdata)
 445 {
 446         platform_device_register_resndata(&platform_bus, "sh_eth", -1,
 447                                           ether_resources,
 448                                           ARRAY_SIZE(ether_resources),
 449                                           pdata, sizeof(*pdata));
 450 }
 451
 452 /* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
 453 void __init __weak r8a7779_register_twd(void) { }
 454
 455 void __init r8a7779_earlytimer_init(void)
 456 {
 457         r8a7779_clock_init();
 458         shmobile_earlytimer_init();
 459         r8a7779_register_twd();
 460 }
 461
 462 void __init r8a7779_add_early_devices(void)
 463 {
 464         early_platform_add_devices(r8a7779_devices_dt,
 465                                    ARRAY_SIZE(r8a7779_devices_dt));
 466
 467         /* Early serial console setup is not included here due to
 468          * memory map collisions. The SCIF serial ports in r8a7779
 469          * are difficult to entity map 1:1 due to collision with the
 470          * virtual memory range used by the coherent DMA code on ARM.
 471          *
 472          * Anyone wanting to debug early can remove UPF_IOREMAP from
 473          * the sh-sci serial console platform data, adjust mapbase
 474          * to a static M:N virt:phys mapping that needs to be added to
 475          * the mappings passed with iotable_init() above.
 476          *
 477          * Then add a call to shmobile_setup_console() from this function.
 478          *
 479          * As a final step pass earlyprint=sh-sci.2,115200 on the kernel
 480          * command line in case of the marzen board.
 481          */
 482 }
 483
 484 #ifdef CONFIG_USE_OF
 485 void __init r8a7779_init_delay(void)
 486 {
 487         shmobile_setup_delay(1000, 2, 4); /* Cortex-A9 @ 1000MHz */
 488 }
 489
 490 static const struct of_dev_auxdata r8a7779_auxdata_lookup[] __initconst = {
 491         {},
 492 };
 493
 494 void __init r8a7779_add_standard_devices_dt(void)
 495 {
 496         /* clocks are setup late during boot in the case of DT */
 497         r8a7779_clock_init();
 498
 499         platform_add_devices(r8a7779_devices_dt,
 500                              ARRAY_SIZE(r8a7779_devices_dt));
 501         of_platform_populate(NULL, of_default_bus_match_table,
 502                              r8a7779_auxdata_lookup, NULL);
 503 }
 504
 505 static const char *r8a7779_compat_dt[] __initdata = {
 506         "renesas,r8a7779",
 507         NULL,
 508 };
 509
 510 DT_MACHINE_START(R8A7779_DT, "Generic R8A7779 (Flattened Device Tree)")
 511         .map_io         = r8a7779_map_io,
 512         .init_early     = r8a7779_init_delay,
 513         .nr_irqs        = NR_IRQS_LEGACY,
 514         .init_irq       = r8a7779_init_irq_dt,
 515         .init_machine   = r8a7779_add_standard_devices_dt,
 516         .init_time      = shmobile_timer_init,
 517         .dt_compat      = r8a7779_compat_dt,
 518 MACHINE_END
 519 #endif /* CONFIG_USE_OF */