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/platform_device.h>
  25 #include <linux/delay.h>
  26 #include <linux/input.h>
  27 #include <linux/io.h>
  28 #include <linux/serial_sci.h>
  29 #include <linux/sh_intc.h>
  30 #include <linux/sh_timer.h>
  31 #include <mach/hardware.h>
  32 #include <mach/irqs.h>
  33 #include <mach/r8a7779.h>
  34 #include <mach/common.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/time.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/hardware/cache-l2x0.h>
  40
  41 static struct map_desc r8a7779_io_desc[] __initdata = {
  42         /* 2M entity map for 0xf0000000 (MPCORE) */
  43         {
  44                 .virtual        = 0xf0000000,
  45                 .pfn            = __phys_to_pfn(0xf0000000),
  46                 .length         = SZ_2M,
  47                 .type           = MT_DEVICE_NONSHARED
  48         },
  49         /* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
  50         {
  51                 .virtual        = 0xfe000000,
  52                 .pfn            = __phys_to_pfn(0xfe000000),
  53                 .length         = SZ_16M,
  54                 .type           = MT_DEVICE_NONSHARED
  55         },
  56 };
  57
  58 void __init r8a7779_map_io(void)
  59 {
  60         iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));
  61 }
  62
  63 static struct resource r8a7779_pfc_resources[] = {
  64         [0] = {
  65                 .start  = 0xfffc0000,
  66                 .end    = 0xfffc023b,
  67                 .flags  = IORESOURCE_MEM,
  68         },
  69         [1] = {
  70                 .start  = 0xffc40000,
  71                 .end    = 0xffc46fff,
  72                 .flags  = IORESOURCE_MEM,
  73         }
  74 };
  75
  76 static struct platform_device r8a7779_pfc_device = {
  77         .name           = "pfc-r8a7779",
  78         .id             = -1,
  79         .resource       = r8a7779_pfc_resources,
  80         .num_resources  = ARRAY_SIZE(r8a7779_pfc_resources),
  81 };
  82
  83 void __init r8a7779_pinmux_init(void)
  84 {
  85         platform_device_register(&r8a7779_pfc_device);
  86 }
  87
  88 static struct plat_sci_port scif0_platform_data = {
  89         .mapbase        = 0xffe40000,
  90         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
  91         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
  92         .scbrr_algo_id  = SCBRR_ALGO_2,
  93         .type           = PORT_SCIF,
  94         .irqs           = SCIx_IRQ_MUXED(gic_spi(88)),
  95 };
  96
  97 static struct platform_device scif0_device = {
  98         .name           = "sh-sci",
  99         .id             = 0,
 100         .dev            = {
 101                 .platform_data  = &scif0_platform_data,
 102         },
 103 };
 104
 105 static struct plat_sci_port scif1_platform_data = {
 106         .mapbase        = 0xffe41000,
 107         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 108         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 109         .scbrr_algo_id  = SCBRR_ALGO_2,
 110         .type           = PORT_SCIF,
 111         .irqs           = SCIx_IRQ_MUXED(gic_spi(89)),
 112 };
 113
 114 static struct platform_device scif1_device = {
 115         .name           = "sh-sci",
 116         .id             = 1,
 117         .dev            = {
 118                 .platform_data  = &scif1_platform_data,
 119         },
 120 };
 121
 122 static struct plat_sci_port scif2_platform_data = {
 123         .mapbase        = 0xffe42000,
 124         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 125         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 126         .scbrr_algo_id  = SCBRR_ALGO_2,
 127         .type           = PORT_SCIF,
 128         .irqs           = SCIx_IRQ_MUXED(gic_spi(90)),
 129 };
 130
 131 static struct platform_device scif2_device = {
 132         .name           = "sh-sci",
 133         .id             = 2,
 134         .dev            = {
 135                 .platform_data  = &scif2_platform_data,
 136         },
 137 };
 138
 139 static struct plat_sci_port scif3_platform_data = {
 140         .mapbase        = 0xffe43000,
 141         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 142         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 143         .scbrr_algo_id  = SCBRR_ALGO_2,
 144         .type           = PORT_SCIF,
 145         .irqs           = SCIx_IRQ_MUXED(gic_spi(91)),
 146 };
 147
 148 static struct platform_device scif3_device = {
 149         .name           = "sh-sci",
 150         .id             = 3,
 151         .dev            = {
 152                 .platform_data  = &scif3_platform_data,
 153         },
 154 };
 155
 156 static struct plat_sci_port scif4_platform_data = {
 157         .mapbase        = 0xffe44000,
 158         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 159         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 160         .scbrr_algo_id  = SCBRR_ALGO_2,
 161         .type           = PORT_SCIF,
 162         .irqs           = SCIx_IRQ_MUXED(gic_spi(92)),
 163 };
 164
 165 static struct platform_device scif4_device = {
 166         .name           = "sh-sci",
 167         .id             = 4,
 168         .dev            = {
 169                 .platform_data  = &scif4_platform_data,
 170         },
 171 };
 172
 173 static struct plat_sci_port scif5_platform_data = {
 174         .mapbase        = 0xffe45000,
 175         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 176         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
 177         .scbrr_algo_id  = SCBRR_ALGO_2,
 178         .type           = PORT_SCIF,
 179         .irqs           = SCIx_IRQ_MUXED(gic_spi(93)),
 180 };
 181
 182 static struct platform_device scif5_device = {
 183         .name           = "sh-sci",
 184         .id             = 5,
 185         .dev            = {
 186                 .platform_data  = &scif5_platform_data,
 187         },
 188 };
 189
 190 /* TMU */
 191 static struct sh_timer_config tmu00_platform_data = {
 192         .name = "TMU00",
 193         .channel_offset = 0x4,
 194         .timer_bit = 0,
 195         .clockevent_rating = 200,
 196 };
 197
 198 static struct resource tmu00_resources[] = {
 199         [0] = {
 200                 .name   = "TMU00",
 201                 .start  = 0xffd80008,
 202                 .end    = 0xffd80013,
 203                 .flags  = IORESOURCE_MEM,
 204         },
 205         [1] = {
 206                 .start  = gic_spi(32),
 207                 .flags  = IORESOURCE_IRQ,
 208         },
 209 };
 210
 211 static struct platform_device tmu00_device = {
 212         .name           = "sh_tmu",
 213         .id             = 0,
 214         .dev = {
 215                 .platform_data  = &tmu00_platform_data,
 216         },
 217         .resource       = tmu00_resources,
 218         .num_resources  = ARRAY_SIZE(tmu00_resources),
 219 };
 220
 221 static struct sh_timer_config tmu01_platform_data = {
 222         .name = "TMU01",
 223         .channel_offset = 0x10,
 224         .timer_bit = 1,
 225         .clocksource_rating = 200,
 226 };
 227
 228 static struct resource tmu01_resources[] = {
 229         [0] = {
 230                 .name   = "TMU01",
 231                 .start  = 0xffd80014,
 232                 .end    = 0xffd8001f,
 233                 .flags  = IORESOURCE_MEM,
 234         },
 235         [1] = {
 236                 .start  = gic_spi(33),
 237                 .flags  = IORESOURCE_IRQ,
 238         },
 239 };
 240
 241 static struct platform_device tmu01_device = {
 242         .name           = "sh_tmu",
 243         .id             = 1,
 244         .dev = {
 245                 .platform_data  = &tmu01_platform_data,
 246         },
 247         .resource       = tmu01_resources,
 248         .num_resources  = ARRAY_SIZE(tmu01_resources),
 249 };
 250
 251 /* I2C */
 252 static struct resource rcar_i2c0_res[] = {
 253         {
 254                 .start  = 0xffc70000,
 255                 .end    = 0xffc70fff,
 256                 .flags  = IORESOURCE_MEM,
 257         }, {
 258                 .start  = gic_spi(79),
 259                 .flags  = IORESOURCE_IRQ,
 260         },
 261 };
 262
 263 static struct platform_device i2c0_device = {
 264         .name           = "i2c-rcar",
 265         .id             = 0,
 266         .resource       = rcar_i2c0_res,
 267         .num_resources  = ARRAY_SIZE(rcar_i2c0_res),
 268 };
 269
 270 static struct resource rcar_i2c1_res[] = {
 271         {
 272                 .start  = 0xffc71000,
 273                 .end    = 0xffc71fff,
 274                 .flags  = IORESOURCE_MEM,
 275         }, {
 276                 .start  = gic_spi(82),
 277                 .flags  = IORESOURCE_IRQ,
 278         },
 279 };
 280
 281 static struct platform_device i2c1_device = {
 282         .name           = "i2c-rcar",
 283         .id             = 1,
 284         .resource       = rcar_i2c1_res,
 285         .num_resources  = ARRAY_SIZE(rcar_i2c1_res),
 286 };
 287
 288 static struct resource rcar_i2c2_res[] = {
 289         {
 290                 .start  = 0xffc72000,
 291                 .end    = 0xffc72fff,
 292                 .flags  = IORESOURCE_MEM,
 293         }, {
 294                 .start  = gic_spi(80),
 295                 .flags  = IORESOURCE_IRQ,
 296         },
 297 };
 298
 299 static struct platform_device i2c2_device = {
 300         .name           = "i2c-rcar",
 301         .id             = 2,
 302         .resource       = rcar_i2c2_res,
 303         .num_resources  = ARRAY_SIZE(rcar_i2c2_res),
 304 };
 305
 306 static struct resource rcar_i2c3_res[] = {
 307         {
 308                 .start  = 0xffc73000,
 309                 .end    = 0xffc73fff,
 310                 .flags  = IORESOURCE_MEM,
 311         }, {
 312                 .start  = gic_spi(81),
 313                 .flags  = IORESOURCE_IRQ,
 314         },
 315 };
 316
 317 static struct platform_device i2c3_device = {
 318         .name           = "i2c-rcar",
 319         .id             = 3,
 320         .resource       = rcar_i2c3_res,
 321         .num_resources  = ARRAY_SIZE(rcar_i2c3_res),
 322 };
 323
 324 static struct platform_device *r8a7779_early_devices[] __initdata = {
 325         &scif0_device,
 326         &scif1_device,
 327         &scif2_device,
 328         &scif3_device,
 329         &scif4_device,
 330         &scif5_device,
 331         &tmu00_device,
 332         &tmu01_device,
 333         &i2c0_device,
 334         &i2c1_device,
 335         &i2c2_device,
 336         &i2c3_device,
 337 };
 338
 339 static struct platform_device *r8a7779_late_devices[] __initdata = {
 340 };
 341
 342 void __init r8a7779_add_standard_devices(void)
 343 {
 344 #ifdef CONFIG_CACHE_L2X0
 345         /* Early BRESP enable, Shared attribute override enable, 64K*16way */
 346         l2x0_init(IOMEM(0xf0100000), 0x40470000, 0x82000fff);
 347 #endif
 348         r8a7779_pm_init();
 349
 350         r8a7779_init_pm_domains();
 351
 352         platform_add_devices(r8a7779_early_devices,
 353                             ARRAY_SIZE(r8a7779_early_devices));
 354         platform_add_devices(r8a7779_late_devices,
 355                             ARRAY_SIZE(r8a7779_late_devices));
 356 }
 357
 358 /* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
 359 void __init __weak r8a7779_register_twd(void) { }
 360
 361 void __init r8a7779_earlytimer_init(void)
 362 {
 363         r8a7779_clock_init();
 364         shmobile_earlytimer_init();
 365         r8a7779_register_twd();
 366 }
 367
 368 void __init r8a7779_add_early_devices(void)
 369 {
 370         early_platform_add_devices(r8a7779_early_devices,
 371                                    ARRAY_SIZE(r8a7779_early_devices));
 372
 373         /* Early serial console setup is not included here due to
 374          * memory map collisions. The SCIF serial ports in r8a7779
 375          * are difficult to entity map 1:1 due to collision with the
 376          * virtual memory range used by the coherent DMA code on ARM.
 377          *
 378          * Anyone wanting to debug early can remove UPF_IOREMAP from
 379          * the sh-sci serial console platform data, adjust mapbase
 380          * to a static M:N virt:phys mapping that needs to be added to
 381          * the mappings passed with iotable_init() above.
 382          *
 383          * Then add a call to shmobile_setup_console() from this function.
 384          *
 385          * As a final step pass earlyprint=sh-sci.2,115200 on the kernel
 386          * command line in case of the marzen board.
 387          */
 388 }