arch/arm/mach-shmobile/setup-sh7372.c

   1 /*
   2  * sh7372 processor support
   3  *
   4  * Copyright (C) 2010  Magnus Damm
   5  * Copyright (C) 2008  Yoshihiro Shimoda
   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_dma.h>
  30 #include <linux/sh_intc.h>
  31 #include <linux/sh_timer.h>
  32 #include <mach/hardware.h>
  33 #include <mach/sh7372.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36
  37 /* SCIFA0 */
  38 static struct plat_sci_port scif0_platform_data = {
  39         .mapbase        = 0xe6c40000,
  40         .flags          = UPF_BOOT_AUTOCONF,
  41         .type           = PORT_SCIFA,
  42         .irqs           = { evt2irq(0x0c00), evt2irq(0x0c00),
  43                             evt2irq(0x0c00), evt2irq(0x0c00) },
  44 };
  45
  46 static struct platform_device scif0_device = {
  47         .name           = "sh-sci",
  48         .id             = 0,
  49         .dev            = {
  50                 .platform_data  = &scif0_platform_data,
  51         },
  52 };
  53
  54 /* SCIFA1 */
  55 static struct plat_sci_port scif1_platform_data = {
  56         .mapbase        = 0xe6c50000,
  57         .flags          = UPF_BOOT_AUTOCONF,
  58         .type           = PORT_SCIFA,
  59         .irqs           = { evt2irq(0x0c20), evt2irq(0x0c20),
  60                             evt2irq(0x0c20), evt2irq(0x0c20) },
  61 };
  62
  63 static struct platform_device scif1_device = {
  64         .name           = "sh-sci",
  65         .id             = 1,
  66         .dev            = {
  67                 .platform_data  = &scif1_platform_data,
  68         },
  69 };
  70
  71 /* SCIFA2 */
  72 static struct plat_sci_port scif2_platform_data = {
  73         .mapbase        = 0xe6c60000,
  74         .flags          = UPF_BOOT_AUTOCONF,
  75         .type           = PORT_SCIFA,
  76         .irqs           = { evt2irq(0x0c40), evt2irq(0x0c40),
  77                             evt2irq(0x0c40), evt2irq(0x0c40) },
  78 };
  79
  80 static struct platform_device scif2_device = {
  81         .name           = "sh-sci",
  82         .id             = 2,
  83         .dev            = {
  84                 .platform_data  = &scif2_platform_data,
  85         },
  86 };
  87
  88 /* SCIFA3 */
  89 static struct plat_sci_port scif3_platform_data = {
  90         .mapbase        = 0xe6c70000,
  91         .flags          = UPF_BOOT_AUTOCONF,
  92         .type           = PORT_SCIFA,
  93         .irqs           = { evt2irq(0x0c60), evt2irq(0x0c60),
  94                             evt2irq(0x0c60), evt2irq(0x0c60) },
  95 };
  96
  97 static struct platform_device scif3_device = {
  98         .name           = "sh-sci",
  99         .id             = 3,
 100         .dev            = {
 101                 .platform_data  = &scif3_platform_data,
 102         },
 103 };
 104
 105 /* SCIFA4 */
 106 static struct plat_sci_port scif4_platform_data = {
 107         .mapbase        = 0xe6c80000,
 108         .flags          = UPF_BOOT_AUTOCONF,
 109         .type           = PORT_SCIFA,
 110         .irqs           = { evt2irq(0x0d20), evt2irq(0x0d20),
 111                             evt2irq(0x0d20), evt2irq(0x0d20) },
 112 };
 113
 114 static struct platform_device scif4_device = {
 115         .name           = "sh-sci",
 116         .id             = 4,
 117         .dev            = {
 118                 .platform_data  = &scif4_platform_data,
 119         },
 120 };
 121
 122 /* SCIFA5 */
 123 static struct plat_sci_port scif5_platform_data = {
 124         .mapbase        = 0xe6cb0000,
 125         .flags          = UPF_BOOT_AUTOCONF,
 126         .type           = PORT_SCIFA,
 127         .irqs           = { evt2irq(0x0d40), evt2irq(0x0d40),
 128                             evt2irq(0x0d40), evt2irq(0x0d40) },
 129 };
 130
 131 static struct platform_device scif5_device = {
 132         .name           = "sh-sci",
 133         .id             = 5,
 134         .dev            = {
 135                 .platform_data  = &scif5_platform_data,
 136         },
 137 };
 138
 139 /* SCIFB */
 140 static struct plat_sci_port scif6_platform_data = {
 141         .mapbase        = 0xe6c30000,
 142         .flags          = UPF_BOOT_AUTOCONF,
 143         .type           = PORT_SCIFB,
 144         .irqs           = { evt2irq(0x0d60), evt2irq(0x0d60),
 145                             evt2irq(0x0d60), evt2irq(0x0d60) },
 146 };
 147
 148 static struct platform_device scif6_device = {
 149         .name           = "sh-sci",
 150         .id             = 6,
 151         .dev            = {
 152                 .platform_data  = &scif6_platform_data,
 153         },
 154 };
 155
 156 /* CMT */
 157 static struct sh_timer_config cmt10_platform_data = {
 158         .name = "CMT10",
 159         .channel_offset = 0x10,
 160         .timer_bit = 0,
 161         .clk = "cmt1",
 162         .clockevent_rating = 125,
 163         .clocksource_rating = 125,
 164 };
 165
 166 static struct resource cmt10_resources[] = {
 167         [0] = {
 168                 .name   = "CMT10",
 169                 .start  = 0xe6138010,
 170                 .end    = 0xe613801b,
 171                 .flags  = IORESOURCE_MEM,
 172         },
 173         [1] = {
 174                 .start  = evt2irq(0x0b00), /* CMT1_CMT10 */
 175                 .flags  = IORESOURCE_IRQ,
 176         },
 177 };
 178
 179 static struct platform_device cmt10_device = {
 180         .name           = "sh_cmt",
 181         .id             = 10,
 182         .dev = {
 183                 .platform_data  = &cmt10_platform_data,
 184         },
 185         .resource       = cmt10_resources,
 186         .num_resources  = ARRAY_SIZE(cmt10_resources),
 187 };
 188
 189 /* I2C */
 190 static struct resource iic0_resources[] = {
 191         [0] = {
 192                 .name   = "IIC0",
 193                 .start  = 0xFFF20000,
 194                 .end    = 0xFFF20425 - 1,
 195                 .flags  = IORESOURCE_MEM,
 196         },
 197         [1] = {
 198                 .start  = intcs_evt2irq(0xe00), /* IIC0_ALI0 */
 199                 .end    = intcs_evt2irq(0xe60), /* IIC0_DTEI0 */
 200                 .flags  = IORESOURCE_IRQ,
 201         },
 202 };
 203
 204 static struct platform_device iic0_device = {
 205         .name           = "i2c-sh_mobile",
 206         .id             = 0, /* "i2c0" clock */
 207         .num_resources  = ARRAY_SIZE(iic0_resources),
 208         .resource       = iic0_resources,
 209 };
 210
 211 static struct resource iic1_resources[] = {
 212         [0] = {
 213                 .name   = "IIC1",
 214                 .start  = 0xE6C20000,
 215                 .end    = 0xE6C20425 - 1,
 216                 .flags  = IORESOURCE_MEM,
 217         },
 218         [1] = {
 219                 .start  = evt2irq(0x780), /* IIC1_ALI1 */
 220                 .end    = evt2irq(0x7e0), /* IIC1_DTEI1 */
 221                 .flags  = IORESOURCE_IRQ,
 222         },
 223 };
 224
 225 static struct platform_device iic1_device = {
 226         .name           = "i2c-sh_mobile",
 227         .id             = 1, /* "i2c1" clock */
 228         .num_resources  = ARRAY_SIZE(iic1_resources),
 229         .resource       = iic1_resources,
 230 };
 231
 232 /* DMA */
 233 /* Transmit sizes and respective CHCR register values */
 234 enum {
 235         XMIT_SZ_8BIT            = 0,
 236         XMIT_SZ_16BIT           = 1,
 237         XMIT_SZ_32BIT           = 2,
 238         XMIT_SZ_64BIT           = 7,
 239         XMIT_SZ_128BIT          = 3,
 240         XMIT_SZ_256BIT          = 4,
 241         XMIT_SZ_512BIT          = 5,
 242 };
 243
 244 /* log2(size / 8) - used to calculate number of transfers */
 245 #define TS_SHIFT {                      \
 246         [XMIT_SZ_8BIT]          = 0,    \
 247         [XMIT_SZ_16BIT]         = 1,    \
 248         [XMIT_SZ_32BIT]         = 2,    \
 249         [XMIT_SZ_64BIT]         = 3,    \
 250         [XMIT_SZ_128BIT]        = 4,    \
 251         [XMIT_SZ_256BIT]        = 5,    \
 252         [XMIT_SZ_512BIT]        = 6,    \
 253 }
 254
 255 #define TS_INDEX2VAL(i) ((((i) & 3) << 3) | \
 256                          (((i) & 0xc) << (20 - 2)))
 257
 258 static const struct sh_dmae_slave_config sh7372_dmae_slaves[] = {
 259         {
 260                 .slave_id       = SHDMA_SLAVE_SDHI0_TX,
 261                 .addr           = 0xe6850030,
 262                 .chcr           = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
 263                 .mid_rid        = 0xc1,
 264         }, {
 265                 .slave_id       = SHDMA_SLAVE_SDHI0_RX,
 266                 .addr           = 0xe6850030,
 267                 .chcr           = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
 268                 .mid_rid        = 0xc2,
 269         }, {
 270                 .slave_id       = SHDMA_SLAVE_SDHI1_TX,
 271                 .addr           = 0xe6860030,
 272                 .chcr           = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
 273                 .mid_rid        = 0xc9,
 274         }, {
 275                 .slave_id       = SHDMA_SLAVE_SDHI1_RX,
 276                 .addr           = 0xe6860030,
 277                 .chcr           = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
 278                 .mid_rid        = 0xca,
 279         }, {
 280                 .slave_id       = SHDMA_SLAVE_SDHI2_TX,
 281                 .addr           = 0xe6870030,
 282                 .chcr           = DM_FIX | SM_INC | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
 283                 .mid_rid        = 0xcd,
 284         }, {
 285                 .slave_id       = SHDMA_SLAVE_SDHI2_RX,
 286                 .addr           = 0xe6870030,
 287                 .chcr           = DM_INC | SM_FIX | 0x800 | TS_INDEX2VAL(XMIT_SZ_16BIT),
 288                 .mid_rid        = 0xce,
 289         },
 290 };
 291
 292 static const struct sh_dmae_channel sh7372_dmae_channels[] = {
 293         {
 294                 .offset = 0,
 295                 .dmars = 0,
 296                 .dmars_bit = 0,
 297         }, {
 298                 .offset = 0x10,
 299                 .dmars = 0,
 300                 .dmars_bit = 8,
 301         }, {
 302                 .offset = 0x20,
 303                 .dmars = 4,
 304                 .dmars_bit = 0,
 305         }, {
 306                 .offset = 0x30,
 307                 .dmars = 4,
 308                 .dmars_bit = 8,
 309         }, {
 310                 .offset = 0x50,
 311                 .dmars = 8,
 312                 .dmars_bit = 0,
 313         }, {
 314                 .offset = 0x60,
 315                 .dmars = 8,
 316                 .dmars_bit = 8,
 317         }
 318 };
 319
 320 static const unsigned int ts_shift[] = TS_SHIFT;
 321
 322 static struct sh_dmae_pdata dma_platform_data = {
 323         .slave          = sh7372_dmae_slaves,
 324         .slave_num      = ARRAY_SIZE(sh7372_dmae_slaves),
 325         .channel        = sh7372_dmae_channels,
 326         .channel_num    = ARRAY_SIZE(sh7372_dmae_channels),
 327         .ts_low_shift   = 3,
 328         .ts_low_mask    = 0x18,
 329         .ts_high_shift  = (20 - 2),     /* 2 bits for shifted low TS */
 330         .ts_high_mask   = 0x00300000,
 331         .ts_shift       = ts_shift,
 332         .ts_shift_num   = ARRAY_SIZE(ts_shift),
 333         .dmaor_init     = DMAOR_DME,
 334 };
 335
 336 /* Resource order important! */
 337 static struct resource sh7372_dmae0_resources[] = {
 338         {
 339                 /* Channel registers and DMAOR */
 340                 .start  = 0xfe008020,
 341                 .end    = 0xfe00808f,
 342                 .flags  = IORESOURCE_MEM,
 343         },
 344         {
 345                 /* DMARSx */
 346                 .start  = 0xfe009000,
 347                 .end    = 0xfe00900b,
 348                 .flags  = IORESOURCE_MEM,
 349         },
 350         {
 351                 /* DMA error IRQ */
 352                 .start  = 246,
 353                 .end    = 246,
 354                 .flags  = IORESOURCE_IRQ,
 355         },
 356         {
 357                 /* IRQ for channels 0-5 */
 358                 .start  = 240,
 359                 .end    = 245,
 360                 .flags  = IORESOURCE_IRQ,
 361         },
 362 };
 363
 364 /* Resource order important! */
 365 static struct resource sh7372_dmae1_resources[] = {
 366         {
 367                 /* Channel registers and DMAOR */
 368                 .start  = 0xfe018020,
 369                 .end    = 0xfe01808f,
 370                 .flags  = IORESOURCE_MEM,
 371         },
 372         {
 373                 /* DMARSx */
 374                 .start  = 0xfe019000,
 375                 .end    = 0xfe01900b,
 376                 .flags  = IORESOURCE_MEM,
 377         },
 378         {
 379                 /* DMA error IRQ */
 380                 .start  = 254,
 381                 .end    = 254,
 382                 .flags  = IORESOURCE_IRQ,
 383         },
 384         {
 385                 /* IRQ for channels 0-5 */
 386                 .start  = 248,
 387                 .end    = 253,
 388                 .flags  = IORESOURCE_IRQ,
 389         },
 390 };
 391
 392 /* Resource order important! */
 393 static struct resource sh7372_dmae2_resources[] = {
 394         {
 395                 /* Channel registers and DMAOR */
 396                 .start  = 0xfe028020,
 397                 .end    = 0xfe02808f,
 398                 .flags  = IORESOURCE_MEM,
 399         },
 400         {
 401                 /* DMARSx */
 402                 .start  = 0xfe029000,
 403                 .end    = 0xfe02900b,
 404                 .flags  = IORESOURCE_MEM,
 405         },
 406         {
 407                 /* DMA error IRQ */
 408                 .start  = 262,
 409                 .end    = 262,
 410                 .flags  = IORESOURCE_IRQ,
 411         },
 412         {
 413                 /* IRQ for channels 0-5 */
 414                 .start  = 256,
 415                 .end    = 261,
 416                 .flags  = IORESOURCE_IRQ,
 417         },
 418 };
 419
 420 static struct platform_device dma0_device = {
 421         .name           = "sh-dma-engine",
 422         .id             = 0,
 423         .resource       = sh7372_dmae0_resources,
 424         .num_resources  = ARRAY_SIZE(sh7372_dmae0_resources),
 425         .dev            = {
 426                 .platform_data  = &dma_platform_data,
 427         },
 428 };
 429
 430 static struct platform_device dma1_device = {
 431         .name           = "sh-dma-engine",
 432         .id             = 1,
 433         .resource       = sh7372_dmae1_resources,
 434         .num_resources  = ARRAY_SIZE(sh7372_dmae1_resources),
 435         .dev            = {
 436                 .platform_data  = &dma_platform_data,
 437         },
 438 };
 439
 440 static struct platform_device dma2_device = {
 441         .name           = "sh-dma-engine",
 442         .id             = 2,
 443         .resource       = sh7372_dmae2_resources,
 444         .num_resources  = ARRAY_SIZE(sh7372_dmae2_resources),
 445         .dev            = {
 446                 .platform_data  = &dma_platform_data,
 447         },
 448 };
 449
 450 static struct platform_device *sh7372_early_devices[] __initdata = {
 451         &scif0_device,
 452         &scif1_device,
 453         &scif2_device,
 454         &scif3_device,
 455         &scif4_device,
 456         &scif5_device,
 457         &scif6_device,
 458         &cmt10_device,
 459         &iic0_device,
 460         &iic1_device,
 461         &dma0_device,
 462         &dma1_device,
 463         &dma2_device,
 464 };
 465
 466 void __init sh7372_add_standard_devices(void)
 467 {
 468         platform_add_devices(sh7372_early_devices,
 469                             ARRAY_SIZE(sh7372_early_devices));
 470 }
 471
 472 void __init sh7372_add_early_devices(void)
 473 {
 474         early_platform_add_devices(sh7372_early_devices,
 475                                    ARRAY_SIZE(sh7372_early_devices));
 476 }