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

   1 /*
   2  * r8a7779 processor support
   3  *
   4  * Copyright (C) 2011  Renesas Solutions Corp.
   5  * Copyright (C) 2011  Magnus Damm
   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  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/irq.h>
  24 #include <linux/of_platform.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/delay.h>
  27 #include <linux/input.h>
  28 #include <linux/io.h>
  29 #include <linux/serial_sci.h>
  30 #include <linux/sh_intc.h>
  31 #include <linux/sh_timer.h>
  32 #include <linux/dma-mapping.h>
  33 #include <mach/hardware.h>
  34 #include <mach/irqs.h>
  35 #include <mach/r8a7779.h>
  36 #include <mach/common.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/time.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/hardware/cache-l2x0.h>
  42
  43 static struct map_desc r8a7779_io_desc[] __initdata = {
  44         /* 2M entity map for 0xf0000000 (MPCORE) */
  45         {
  46                 .virtual        = 0xf0000000,
  47                 .pfn            = __phys_to_pfn(0xf0000000),
  48                 .length         = SZ_2M,
  49                 .type           = MT_DEVICE_NONSHARED
  50         },
  51         /* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
  52         {
  53                 .virtual        = 0xfe000000,
  54                 .pfn            = __phys_to_pfn(0xfe000000),
  55                 .length         = SZ_16M,
  56                 .type           = MT_DEVICE_NONSHARED
  57         },
  58 };
  59
  60 void __init r8a7779_map_io(void)
  61 {
  62         iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));
  63 }
  64
  65 static struct resource r8a7779_pfc_resources[] = {
  66         [0] = {
  67                 .start  = 0xfffc0000,
  68                 .end    = 0xfffc023b,
  69                 .flags  = IORESOURCE_MEM,
  70         },
  71         [1] = {
  72                 .start  = 0xffc40000,
  73                 .end    = 0xffc46fff,
  74                 .flags  = IORESOURCE_MEM,
  75         }
  76 };
  77
  78 static struct platform_device r8a7779_pfc_device = {
  79         .name           = "pfc-r8a7779",
  80         .id             = -1,
  81         .resource       = r8a7779_pfc_resources,
  82         .num_resources  = ARRAY_SIZE(r8a7779_pfc_resources),
  83 };
  84
  85 void __init r8a7779_pinmux_init(void)
  86 {
  87         platform_device_register(&r8a7779_pfc_device);
  88 }
  89
  90 static struct plat_sci_port scif0_platform_data = {
  91         .mapbase        = 0xffe40000,
  92         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
  93         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
  94         .scbrr_algo_id  = SCBRR_ALGO_2,
  95         .type           = PORT_SCIF,
  96         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x78)),
  97 };
  98
  99 static struct platform_device scif0_device = {
 100         .name           = "sh-sci",
 101         .id             = 0,
 102         .dev            = {
 103                 .platform_data  = &scif0_platform_data,
 104         },
 105 };
 106
 107 static struct plat_sci_port scif1_platform_data = {
 108         .mapbase        = 0xffe41000,
 109         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 110         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 111         .scbrr_algo_id  = SCBRR_ALGO_2,
 112         .type           = PORT_SCIF,
 113         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x79)),
 114 };
 115
 116 static struct platform_device scif1_device = {
 117         .name           = "sh-sci",
 118         .id             = 1,
 119         .dev            = {
 120                 .platform_data  = &scif1_platform_data,
 121         },
 122 };
 123
 124 static struct plat_sci_port scif2_platform_data = {
 125         .mapbase        = 0xffe42000,
 126         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 127         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 128         .scbrr_algo_id  = SCBRR_ALGO_2,
 129         .type           = PORT_SCIF,
 130         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x7a)),
 131 };
 132
 133 static struct platform_device scif2_device = {
 134         .name           = "sh-sci",
 135         .id             = 2,
 136         .dev            = {
 137                 .platform_data  = &scif2_platform_data,
 138         },
 139 };
 140
 141 static struct plat_sci_port scif3_platform_data = {
 142         .mapbase        = 0xffe43000,
 143         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 144         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 145         .scbrr_algo_id  = SCBRR_ALGO_2,
 146         .type           = PORT_SCIF,
 147         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x7b)),
 148 };
 149
 150 static struct platform_device scif3_device = {
 151         .name           = "sh-sci",
 152         .id             = 3,
 153         .dev            = {
 154                 .platform_data  = &scif3_platform_data,
 155         },
 156 };
 157
 158 static struct plat_sci_port scif4_platform_data = {
 159         .mapbase        = 0xffe44000,
 160         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 161         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 162         .scbrr_algo_id  = SCBRR_ALGO_2,
 163         .type           = PORT_SCIF,
 164         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x7c)),
 165 };
 166
 167 static struct platform_device scif4_device = {
 168         .name           = "sh-sci",
 169         .id             = 4,
 170         .dev            = {
 171                 .platform_data  = &scif4_platform_data,
 172         },
 173 };
 174
 175 static struct plat_sci_port scif5_platform_data = {
 176         .mapbase        = 0xffe45000,
 177         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 178         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 179         .scbrr_algo_id  = SCBRR_ALGO_2,
 180         .type           = PORT_SCIF,
 181         .irqs           = SCIx_IRQ_MUXED(gic_iid(0x7d)),
 182 };
 183
 184 static struct platform_device scif5_device = {
 185         .name           = "sh-sci",
 186         .id             = 5,
 187         .dev            = {
 188                 .platform_data  = &scif5_platform_data,
 189         },
 190 };
 191
 192 /* TMU */
 193 static struct sh_timer_config tmu00_platform_data = {
 194         .name = "TMU00",
 195         .channel_offset = 0x4,
 196         .timer_bit = 0,
 197         .clockevent_rating = 200,
 198 };
 199
 200 static struct resource tmu00_resources[] = {
 201         [0] = {
 202                 .name   = "TMU00",
 203                 .start  = 0xffd80008,
 204                 .end    = 0xffd80013,
 205                 .flags  = IORESOURCE_MEM,
 206         },
 207         [1] = {
 208                 .start  = gic_iid(0x40),
 209                 .flags  = IORESOURCE_IRQ,
 210         },
 211 };
 212
 213 static struct platform_device tmu00_device = {
 214         .name           = "sh_tmu",
 215         .id             = 0,
 216         .dev = {
 217                 .platform_data  = &tmu00_platform_data,
 218         },
 219         .resource       = tmu00_resources,
 220         .num_resources  = ARRAY_SIZE(tmu00_resources),
 221 };
 222
 223 static struct sh_timer_config tmu01_platform_data = {
 224         .name = "TMU01",
 225         .channel_offset = 0x10,
 226         .timer_bit = 1,
 227         .clocksource_rating = 200,
 228 };
 229
 230 static struct resource tmu01_resources[] = {
 231         [0] = {
 232                 .name   = "TMU01",
 233                 .start  = 0xffd80014,
 234                 .end    = 0xffd8001f,
 235                 .flags  = IORESOURCE_MEM,
 236         },
 237         [1] = {
 238                 .start  = gic_iid(0x41),
 239                 .flags  = IORESOURCE_IRQ,
 240         },
 241 };
 242
 243 static struct platform_device tmu01_device = {
 244         .name           = "sh_tmu",
 245         .id             = 1,
 246         .dev = {
 247                 .platform_data  = &tmu01_platform_data,
 248         },
 249         .resource       = tmu01_resources,
 250         .num_resources  = ARRAY_SIZE(tmu01_resources),
 251 };
 252
 253 /* I2C */
 254 static struct resource rcar_i2c0_res[] = {
 255         {
 256                 .start  = 0xffc70000,
 257                 .end    = 0xffc70fff,
 258                 .flags  = IORESOURCE_MEM,
 259         }, {
 260                 .start  = gic_iid(0x6f),
 261                 .flags  = IORESOURCE_IRQ,
 262         },
 263 };
 264
 265 static struct platform_device i2c0_device = {
 266         .name           = "i2c-rcar",
 267         .id             = 0,
 268         .resource       = rcar_i2c0_res,
 269         .num_resources  = ARRAY_SIZE(rcar_i2c0_res),
 270 };
 271
 272 static struct resource rcar_i2c1_res[] = {
 273         {
 274                 .start  = 0xffc71000,
 275                 .end    = 0xffc71fff,
 276                 .flags  = IORESOURCE_MEM,
 277         }, {
 278                 .start  = gic_iid(0x72),
 279                 .flags  = IORESOURCE_IRQ,
 280         },
 281 };
 282
 283 static struct platform_device i2c1_device = {
 284         .name           = "i2c-rcar",
 285         .id             = 1,
 286         .resource       = rcar_i2c1_res,
 287         .num_resources  = ARRAY_SIZE(rcar_i2c1_res),
 288 };
 289
 290 static struct resource rcar_i2c2_res[] = {
 291         {
 292                 .start  = 0xffc72000,
 293                 .end    = 0xffc72fff,
 294                 .flags  = IORESOURCE_MEM,
 295         }, {
 296                 .start  = gic_iid(0x70),
 297                 .flags  = IORESOURCE_IRQ,
 298         },
 299 };
 300
 301 static struct platform_device i2c2_device = {
 302         .name           = "i2c-rcar",
 303         .id             = 2,
 304         .resource       = rcar_i2c2_res,
 305         .num_resources  = ARRAY_SIZE(rcar_i2c2_res),
 306 };
 307
 308 static struct resource rcar_i2c3_res[] = {
 309         {
 310                 .start  = 0xffc73000,
 311                 .end    = 0xffc73fff,
 312                 .flags  = IORESOURCE_MEM,
 313         }, {
 314                 .start  = gic_iid(0x71),
 315                 .flags  = IORESOURCE_IRQ,
 316         },
 317 };
 318
 319 static struct platform_device i2c3_device = {
 320         .name           = "i2c-rcar",
 321         .id             = 3,
 322         .resource       = rcar_i2c3_res,
 323         .num_resources  = ARRAY_SIZE(rcar_i2c3_res),
 324 };
 325
 326 static struct resource sata_resources[] = {
 327         [0] = {
 328                 .name   = "rcar-sata",
 329                 .start  = 0xfc600000,
 330                 .end    = 0xfc601fff,
 331                 .flags  = IORESOURCE_MEM,
 332         },
 333         [1] = {
 334                 .start  = gic_iid(0x84),
 335                 .flags  = IORESOURCE_IRQ,
 336         },
 337 };
 338
 339 static struct platform_device sata_device = {
 340         .name           = "sata_rcar",
 341         .id             = -1,
 342         .resource       = sata_resources,
 343         .num_resources  = ARRAY_SIZE(sata_resources),
 344         .dev            = {
 345                 .dma_mask               = &sata_device.dev.coherent_dma_mask,
 346                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 347         },
 348 };
 349
 350 static struct platform_device *r8a7779_devices_dt[] __initdata = {
 351         &scif0_device,
 352         &scif1_device,
 353         &scif2_device,
 354         &scif3_device,
 355         &scif4_device,
 356         &scif5_device,
 357         &tmu00_device,
 358         &tmu01_device,
 359 };
 360
 361 static struct platform_device *r8a7779_late_devices[] __initdata = {
 362         &i2c0_device,
 363         &i2c1_device,
 364         &i2c2_device,
 365         &i2c3_device,
 366         &sata_device,
 367 };
 368
 369 void __init r8a7779_add_standard_devices(void)
 370 {
 371 #ifdef CONFIG_CACHE_L2X0
 372         /* Early BRESP enable, Shared attribute override enable, 64K*16way */
 373         l2x0_init(IOMEM(0xf0100000), 0x40470000, 0x82000fff);
 374 #endif
 375         r8a7779_pm_init();
 376
 377         r8a7779_init_pm_domains();
 378
 379         platform_add_devices(r8a7779_devices_dt,
 380                             ARRAY_SIZE(r8a7779_devices_dt));
 381         platform_add_devices(r8a7779_late_devices,
 382                             ARRAY_SIZE(r8a7779_late_devices));
 383 }
 384
 385 /* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
 386 void __init __weak r8a7779_register_twd(void) { }
 387
 388 void __init r8a7779_earlytimer_init(void)
 389 {
 390         r8a7779_clock_init();
 391         shmobile_earlytimer_init();
 392         r8a7779_register_twd();
 393 }
 394
 395 void __init r8a7779_add_early_devices(void)
 396 {
 397         early_platform_add_devices(r8a7779_devices_dt,
 398                                    ARRAY_SIZE(r8a7779_devices_dt));
 399
 400         /* Early serial console setup is not included here due to
 401          * memory map collisions. The SCIF serial ports in r8a7779
 402          * are difficult to entity map 1:1 due to collision with the
 403          * virtual memory range used by the coherent DMA code on ARM.
 404          *
 405          * Anyone wanting to debug early can remove UPF_IOREMAP from
 406          * the sh-sci serial console platform data, adjust mapbase
 407          * to a static M:N virt:phys mapping that needs to be added to
 408          * the mappings passed with iotable_init() above.
 409          *
 410          * Then add a call to shmobile_setup_console() from this function.
 411          *
 412          * As a final step pass earlyprint=sh-sci.2,115200 on the kernel
 413          * command line in case of the marzen board.
 414          */
 415 }
 416
 417 #ifdef CONFIG_USE_OF
 418 void __init r8a7779_init_delay(void)
 419 {
 420         shmobile_setup_delay(1000, 2, 4); /* Cortex-A9 @ 1000MHz */
 421 }
 422
 423 static const struct of_dev_auxdata r8a7779_auxdata_lookup[] __initconst = {
 424         {},
 425 };
 426
 427 void __init r8a7779_add_standard_devices_dt(void)
 428 {
 429         /* clocks are setup late during boot in the case of DT */
 430         r8a7779_clock_init();
 431
 432         platform_add_devices(r8a7779_devices_dt,
 433                              ARRAY_SIZE(r8a7779_devices_dt));
 434         of_platform_populate(NULL, of_default_bus_match_table,
 435                              r8a7779_auxdata_lookup, NULL);
 436 }
 437
 438 static const char *r8a7779_compat_dt[] __initdata = {
 439         "renesas,r8a7779",
 440         NULL,
 441 };
 442
 443 DT_MACHINE_START(R8A7779_DT, "Generic R8A7779 (Flattened Device Tree)")
 444         .map_io         = r8a7779_map_io,
 445         .init_early     = r8a7779_init_delay,
 446         .nr_irqs        = NR_IRQS_LEGACY,
 447         .init_irq       = r8a7779_init_irq_dt,
 448         .init_machine   = r8a7779_add_standard_devices_dt,
 449         .init_time      = shmobile_timer_init,
 450         .dt_compat      = r8a7779_compat_dt,
 451 MACHINE_END
 452 #endif /* CONFIG_USE_OF */