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