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   1 /*
   2  * arch/arm/mach-kirkwood/common.c
   3  *
   4  * Core functions for Marvell Kirkwood SoCs
   5  *
   6  * This file is licensed under the terms of the GNU General Public
   7  * License version 2.  This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/serial_8250.h>
  15 #include <linux/mbus.h>
  16 #include <linux/mv643xx_eth.h>
  17 #include <linux/ata_platform.h>
  18 #include <linux/spi/orion_spi.h>
  19 #include <asm/page.h>
  20 #include <asm/timex.h>
  21 #include <asm/mach/map.h>
  22 #include <asm/mach/time.h>
  23 #include <mach/kirkwood.h>
  24 #include <plat/cache-feroceon-l2.h>
  25 #include <plat/ehci-orion.h>
  26 #include <plat/mv_xor.h>
  27 #include <plat/orion_nand.h>
  28 #include <plat/time.h>
  29 #include "common.h"
  30
  31 /*****************************************************************************
  32  * I/O Address Mapping
  33  ****************************************************************************/
  34 static struct map_desc kirkwood_io_desc[] __initdata = {
  35         {
  36                 .virtual        = KIRKWOOD_PCIE_IO_VIRT_BASE,
  37                 .pfn            = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
  38                 .length         = KIRKWOOD_PCIE_IO_SIZE,
  39                 .type           = MT_DEVICE,
  40         }, {
  41                 .virtual        = KIRKWOOD_REGS_VIRT_BASE,
  42                 .pfn            = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
  43                 .length         = KIRKWOOD_REGS_SIZE,
  44                 .type           = MT_DEVICE,
  45         },
  46 };
  47
  48 void __init kirkwood_map_io(void)
  49 {
  50         iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
  51 }
  52
  53
  54 /*****************************************************************************
  55  * EHCI
  56  ****************************************************************************/
  57 static struct orion_ehci_data kirkwood_ehci_data = {
  58         .dram           = &kirkwood_mbus_dram_info,
  59 };
  60
  61 static u64 ehci_dmamask = 0xffffffffUL;
  62
  63
  64 /*****************************************************************************
  65  * EHCI0
  66  ****************************************************************************/
  67 static struct resource kirkwood_ehci_resources[] = {
  68         {
  69                 .start  = USB_PHYS_BASE,
  70                 .end    = USB_PHYS_BASE + 0x0fff,
  71                 .flags  = IORESOURCE_MEM,
  72         }, {
  73                 .start  = IRQ_KIRKWOOD_USB,
  74                 .end    = IRQ_KIRKWOOD_USB,
  75                 .flags  = IORESOURCE_IRQ,
  76         },
  77 };
  78
  79 static struct platform_device kirkwood_ehci = {
  80         .name           = "orion-ehci",
  81         .id             = 0,
  82         .dev            = {
  83                 .dma_mask               = &ehci_dmamask,
  84                 .coherent_dma_mask      = 0xffffffff,
  85                 .platform_data          = &kirkwood_ehci_data,
  86         },
  87         .resource       = kirkwood_ehci_resources,
  88         .num_resources  = ARRAY_SIZE(kirkwood_ehci_resources),
  89 };
  90
  91 void __init kirkwood_ehci_init(void)
  92 {
  93         platform_device_register(&kirkwood_ehci);
  94 }
  95
  96
  97 /*****************************************************************************
  98  * GE00
  99  ****************************************************************************/
 100 struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
 101         .t_clk          = KIRKWOOD_TCLK,
 102         .dram           = &kirkwood_mbus_dram_info,
 103 };
 104
 105 static struct resource kirkwood_ge00_shared_resources[] = {
 106         {
 107                 .name   = "ge00 base",
 108                 .start  = GE00_PHYS_BASE + 0x2000,
 109                 .end    = GE00_PHYS_BASE + 0x3fff,
 110                 .flags  = IORESOURCE_MEM,
 111         },
 112 };
 113
 114 static struct platform_device kirkwood_ge00_shared = {
 115         .name           = MV643XX_ETH_SHARED_NAME,
 116         .id             = 0,
 117         .dev            = {
 118                 .platform_data  = &kirkwood_ge00_shared_data,
 119         },
 120         .num_resources  = 1,
 121         .resource       = kirkwood_ge00_shared_resources,
 122 };
 123
 124 static struct resource kirkwood_ge00_resources[] = {
 125         {
 126                 .name   = "ge00 irq",
 127                 .start  = IRQ_KIRKWOOD_GE00_SUM,
 128                 .end    = IRQ_KIRKWOOD_GE00_SUM,
 129                 .flags  = IORESOURCE_IRQ,
 130         },
 131 };
 132
 133 static struct platform_device kirkwood_ge00 = {
 134         .name           = MV643XX_ETH_NAME,
 135         .id             = 0,
 136         .num_resources  = 1,
 137         .resource       = kirkwood_ge00_resources,
 138 };
 139
 140 void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 141 {
 142         eth_data->shared = &kirkwood_ge00_shared;
 143         kirkwood_ge00.dev.platform_data = eth_data;
 144
 145         platform_device_register(&kirkwood_ge00_shared);
 146         platform_device_register(&kirkwood_ge00);
 147 }
 148
 149
 150 /*****************************************************************************
 151  * SoC RTC
 152  ****************************************************************************/
 153 static struct resource kirkwood_rtc_resource = {
 154         .start  = RTC_PHYS_BASE,
 155         .end    = RTC_PHYS_BASE + SZ_16 - 1,
 156         .flags  = IORESOURCE_MEM,
 157 };
 158
 159 void __init kirkwood_rtc_init(void)
 160 {
 161         platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
 162 }
 163
 164
 165 /*****************************************************************************
 166  * SATA
 167  ****************************************************************************/
 168 static struct resource kirkwood_sata_resources[] = {
 169         {
 170                 .name   = "sata base",
 171                 .start  = SATA_PHYS_BASE,
 172                 .end    = SATA_PHYS_BASE + 0x5000 - 1,
 173                 .flags  = IORESOURCE_MEM,
 174         }, {
 175                 .name   = "sata irq",
 176                 .start  = IRQ_KIRKWOOD_SATA,
 177                 .end    = IRQ_KIRKWOOD_SATA,
 178                 .flags  = IORESOURCE_IRQ,
 179         },
 180 };
 181
 182 static struct platform_device kirkwood_sata = {
 183         .name           = "sata_mv",
 184         .id             = 0,
 185         .dev            = {
 186                 .coherent_dma_mask      = 0xffffffff,
 187         },
 188         .num_resources  = ARRAY_SIZE(kirkwood_sata_resources),
 189         .resource       = kirkwood_sata_resources,
 190 };
 191
 192 void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
 193 {
 194         sata_data->dram = &kirkwood_mbus_dram_info;
 195         kirkwood_sata.dev.platform_data = sata_data;
 196         platform_device_register(&kirkwood_sata);
 197 }
 198
 199
 200 /*****************************************************************************
 201  * SPI
 202  ****************************************************************************/
 203 static struct orion_spi_info kirkwood_spi_plat_data = {
 204         .tclk           = KIRKWOOD_TCLK,
 205 };
 206
 207 static struct resource kirkwood_spi_resources[] = {
 208         {
 209                 .start  = SPI_PHYS_BASE,
 210                 .end    = SPI_PHYS_BASE + SZ_512 - 1,
 211                 .flags  = IORESOURCE_MEM,
 212         },
 213 };
 214
 215 static struct platform_device kirkwood_spi = {
 216         .name           = "orion_spi",
 217         .id             = 0,
 218         .resource       = kirkwood_spi_resources,
 219         .dev            = {
 220                 .platform_data  = &kirkwood_spi_plat_data,
 221         },
 222         .num_resources  = ARRAY_SIZE(kirkwood_spi_resources),
 223 };
 224
 225 void __init kirkwood_spi_init()
 226 {
 227         platform_device_register(&kirkwood_spi);
 228 }
 229
 230
 231 /*****************************************************************************
 232  * UART0
 233  ****************************************************************************/
 234 static struct plat_serial8250_port kirkwood_uart0_data[] = {
 235         {
 236                 .mapbase        = UART0_PHYS_BASE,
 237                 .membase        = (char *)UART0_VIRT_BASE,
 238                 .irq            = IRQ_KIRKWOOD_UART_0,
 239                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 240                 .iotype         = UPIO_MEM,
 241                 .regshift       = 2,
 242                 .uartclk        = KIRKWOOD_TCLK,
 243         }, {
 244         },
 245 };
 246
 247 static struct resource kirkwood_uart0_resources[] = {
 248         {
 249                 .start          = UART0_PHYS_BASE,
 250                 .end            = UART0_PHYS_BASE + 0xff,
 251                 .flags          = IORESOURCE_MEM,
 252         }, {
 253                 .start          = IRQ_KIRKWOOD_UART_0,
 254                 .end            = IRQ_KIRKWOOD_UART_0,
 255                 .flags          = IORESOURCE_IRQ,
 256         },
 257 };
 258
 259 static struct platform_device kirkwood_uart0 = {
 260         .name                   = "serial8250",
 261         .id                     = 0,
 262         .dev                    = {
 263                 .platform_data  = kirkwood_uart0_data,
 264         },
 265         .resource               = kirkwood_uart0_resources,
 266         .num_resources          = ARRAY_SIZE(kirkwood_uart0_resources),
 267 };
 268
 269 void __init kirkwood_uart0_init(void)
 270 {
 271         platform_device_register(&kirkwood_uart0);
 272 }
 273
 274
 275 /*****************************************************************************
 276  * UART1
 277  ****************************************************************************/
 278 static struct plat_serial8250_port kirkwood_uart1_data[] = {
 279         {
 280                 .mapbase        = UART1_PHYS_BASE,
 281                 .membase        = (char *)UART1_VIRT_BASE,
 282                 .irq            = IRQ_KIRKWOOD_UART_1,
 283                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 284                 .iotype         = UPIO_MEM,
 285                 .regshift       = 2,
 286                 .uartclk        = KIRKWOOD_TCLK,
 287         }, {
 288         },
 289 };
 290
 291 static struct resource kirkwood_uart1_resources[] = {
 292         {
 293                 .start          = UART1_PHYS_BASE,
 294                 .end            = UART1_PHYS_BASE + 0xff,
 295                 .flags          = IORESOURCE_MEM,
 296         }, {
 297                 .start          = IRQ_KIRKWOOD_UART_1,
 298                 .end            = IRQ_KIRKWOOD_UART_1,
 299                 .flags          = IORESOURCE_IRQ,
 300         },
 301 };
 302
 303 static struct platform_device kirkwood_uart1 = {
 304         .name                   = "serial8250",
 305         .id                     = 1,
 306         .dev                    = {
 307                 .platform_data  = kirkwood_uart1_data,
 308         },
 309         .resource               = kirkwood_uart1_resources,
 310         .num_resources          = ARRAY_SIZE(kirkwood_uart1_resources),
 311 };
 312
 313 void __init kirkwood_uart1_init(void)
 314 {
 315         platform_device_register(&kirkwood_uart1);
 316 }
 317
 318
 319 /*****************************************************************************
 320  * XOR
 321  ****************************************************************************/
 322 static struct mv_xor_platform_shared_data kirkwood_xor_shared_data = {
 323         .dram           = &kirkwood_mbus_dram_info,
 324 };
 325
 326 static u64 kirkwood_xor_dmamask = DMA_32BIT_MASK;
 327
 328
 329 /*****************************************************************************
 330  * XOR0
 331  ****************************************************************************/
 332 static struct resource kirkwood_xor0_shared_resources[] = {
 333         {
 334                 .name   = "xor 0 low",
 335                 .start  = XOR0_PHYS_BASE,
 336                 .end    = XOR0_PHYS_BASE + 0xff,
 337                 .flags  = IORESOURCE_MEM,
 338         }, {
 339                 .name   = "xor 0 high",
 340                 .start  = XOR0_HIGH_PHYS_BASE,
 341                 .end    = XOR0_HIGH_PHYS_BASE + 0xff,
 342                 .flags  = IORESOURCE_MEM,
 343         },
 344 };
 345
 346 static struct platform_device kirkwood_xor0_shared = {
 347         .name           = MV_XOR_SHARED_NAME,
 348         .id             = 0,
 349         .dev            = {
 350                 .platform_data = &kirkwood_xor_shared_data,
 351         },
 352         .num_resources  = ARRAY_SIZE(kirkwood_xor0_shared_resources),
 353         .resource       = kirkwood_xor0_shared_resources,
 354 };
 355
 356 static struct resource kirkwood_xor00_resources[] = {
 357         [0] = {
 358                 .start  = IRQ_KIRKWOOD_XOR_00,
 359                 .end    = IRQ_KIRKWOOD_XOR_00,
 360                 .flags  = IORESOURCE_IRQ,
 361         },
 362 };
 363
 364 static struct mv_xor_platform_data kirkwood_xor00_data = {
 365         .shared         = &kirkwood_xor0_shared,
 366         .hw_id          = 0,
 367         .pool_size      = PAGE_SIZE,
 368 };
 369
 370 static struct platform_device kirkwood_xor00_channel = {
 371         .name           = MV_XOR_NAME,
 372         .id             = 0,
 373         .num_resources  = ARRAY_SIZE(kirkwood_xor00_resources),
 374         .resource       = kirkwood_xor00_resources,
 375         .dev            = {
 376                 .dma_mask               = &kirkwood_xor_dmamask,
 377                 .coherent_dma_mask      = DMA_64BIT_MASK,
 378                 .platform_data          = (void *)&kirkwood_xor00_data,
 379         },
 380 };
 381
 382 static struct resource kirkwood_xor01_resources[] = {
 383         [0] = {
 384                 .start  = IRQ_KIRKWOOD_XOR_01,
 385                 .end    = IRQ_KIRKWOOD_XOR_01,
 386                 .flags  = IORESOURCE_IRQ,
 387         },
 388 };
 389
 390 static struct mv_xor_platform_data kirkwood_xor01_data = {
 391         .shared         = &kirkwood_xor0_shared,
 392         .hw_id          = 1,
 393         .pool_size      = PAGE_SIZE,
 394 };
 395
 396 static struct platform_device kirkwood_xor01_channel = {
 397         .name           = MV_XOR_NAME,
 398         .id             = 1,
 399         .num_resources  = ARRAY_SIZE(kirkwood_xor01_resources),
 400         .resource       = kirkwood_xor01_resources,
 401         .dev            = {
 402                 .dma_mask               = &kirkwood_xor_dmamask,
 403                 .coherent_dma_mask      = DMA_64BIT_MASK,
 404                 .platform_data          = (void *)&kirkwood_xor01_data,
 405         },
 406 };
 407
 408 void __init kirkwood_xor0_init(void)
 409 {
 410         platform_device_register(&kirkwood_xor0_shared);
 411
 412         /*
 413          * two engines can't do memset simultaneously, this limitation
 414          * satisfied by removing memset support from one of the engines.
 415          */
 416         dma_cap_set(DMA_MEMCPY, kirkwood_xor00_data.cap_mask);
 417         dma_cap_set(DMA_XOR, kirkwood_xor00_data.cap_mask);
 418         platform_device_register(&kirkwood_xor00_channel);
 419
 420         dma_cap_set(DMA_MEMCPY, kirkwood_xor01_data.cap_mask);
 421         dma_cap_set(DMA_MEMSET, kirkwood_xor01_data.cap_mask);
 422         dma_cap_set(DMA_XOR, kirkwood_xor01_data.cap_mask);
 423         platform_device_register(&kirkwood_xor01_channel);
 424 }
 425
 426
 427 /*****************************************************************************
 428  * XOR1
 429  ****************************************************************************/
 430 static struct resource kirkwood_xor1_shared_resources[] = {
 431         {
 432                 .name   = "xor 1 low",
 433                 .start  = XOR1_PHYS_BASE,
 434                 .end    = XOR1_PHYS_BASE + 0xff,
 435                 .flags  = IORESOURCE_MEM,
 436         }, {
 437                 .name   = "xor 1 high",
 438                 .start  = XOR1_HIGH_PHYS_BASE,
 439                 .end    = XOR1_HIGH_PHYS_BASE + 0xff,
 440                 .flags  = IORESOURCE_MEM,
 441         },
 442 };
 443
 444 static struct platform_device kirkwood_xor1_shared = {
 445         .name           = MV_XOR_SHARED_NAME,
 446         .id             = 1,
 447         .dev            = {
 448                 .platform_data = &kirkwood_xor_shared_data,
 449         },
 450         .num_resources  = ARRAY_SIZE(kirkwood_xor1_shared_resources),
 451         .resource       = kirkwood_xor1_shared_resources,
 452 };
 453
 454 static struct resource kirkwood_xor10_resources[] = {
 455         [0] = {
 456                 .start  = IRQ_KIRKWOOD_XOR_10,
 457                 .end    = IRQ_KIRKWOOD_XOR_10,
 458                 .flags  = IORESOURCE_IRQ,
 459         },
 460 };
 461
 462 static struct mv_xor_platform_data kirkwood_xor10_data = {
 463         .shared         = &kirkwood_xor1_shared,
 464         .hw_id          = 0,
 465         .pool_size      = PAGE_SIZE,
 466 };
 467
 468 static struct platform_device kirkwood_xor10_channel = {
 469         .name           = MV_XOR_NAME,
 470         .id             = 2,
 471         .num_resources  = ARRAY_SIZE(kirkwood_xor10_resources),
 472         .resource       = kirkwood_xor10_resources,
 473         .dev            = {
 474                 .dma_mask               = &kirkwood_xor_dmamask,
 475                 .coherent_dma_mask      = DMA_64BIT_MASK,
 476                 .platform_data          = (void *)&kirkwood_xor10_data,
 477         },
 478 };
 479
 480 static struct resource kirkwood_xor11_resources[] = {
 481         [0] = {
 482                 .start  = IRQ_KIRKWOOD_XOR_11,
 483                 .end    = IRQ_KIRKWOOD_XOR_11,
 484                 .flags  = IORESOURCE_IRQ,
 485         },
 486 };
 487
 488 static struct mv_xor_platform_data kirkwood_xor11_data = {
 489         .shared         = &kirkwood_xor1_shared,
 490         .hw_id          = 1,
 491         .pool_size      = PAGE_SIZE,
 492 };
 493
 494 static struct platform_device kirkwood_xor11_channel = {
 495         .name           = MV_XOR_NAME,
 496         .id             = 3,
 497         .num_resources  = ARRAY_SIZE(kirkwood_xor11_resources),
 498         .resource       = kirkwood_xor11_resources,
 499         .dev            = {
 500                 .dma_mask               = &kirkwood_xor_dmamask,
 501                 .coherent_dma_mask      = DMA_64BIT_MASK,
 502                 .platform_data          = (void *)&kirkwood_xor11_data,
 503         },
 504 };
 505
 506 void __init kirkwood_xor1_init(void)
 507 {
 508         platform_device_register(&kirkwood_xor1_shared);
 509
 510         /*
 511          * two engines can't do memset simultaneously, this limitation
 512          * satisfied by removing memset support from one of the engines.
 513          */
 514         dma_cap_set(DMA_MEMCPY, kirkwood_xor10_data.cap_mask);
 515         dma_cap_set(DMA_XOR, kirkwood_xor10_data.cap_mask);
 516         platform_device_register(&kirkwood_xor10_channel);
 517
 518         dma_cap_set(DMA_MEMCPY, kirkwood_xor11_data.cap_mask);
 519         dma_cap_set(DMA_MEMSET, kirkwood_xor11_data.cap_mask);
 520         dma_cap_set(DMA_XOR, kirkwood_xor11_data.cap_mask);
 521         platform_device_register(&kirkwood_xor11_channel);
 522 }
 523
 524
 525 /*****************************************************************************
 526  * Time handling
 527  ****************************************************************************/
 528 static void kirkwood_timer_init(void)
 529 {
 530         orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK);
 531 }
 532
 533 struct sys_timer kirkwood_timer = {
 534         .init = kirkwood_timer_init,
 535 };
 536
 537
 538 /*****************************************************************************
 539  * General
 540  ****************************************************************************/
 541 static char * __init kirkwood_id(void)
 542 {
 543         switch (readl(DEVICE_ID) & 0x3) {
 544         case 0:
 545                 return "88F6180";
 546         case 1:
 547                 return "88F6192";
 548         case 2:
 549                 return "88F6281";
 550         }
 551
 552         return "unknown 88F6000 variant";
 553 }
 554
 555 static int __init is_l2_writethrough(void)
 556 {
 557         return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH);
 558 }
 559
 560 void __init kirkwood_init(void)
 561 {
 562         printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
 563                 kirkwood_id(), KIRKWOOD_TCLK);
 564
 565         kirkwood_setup_cpu_mbus();
 566
 567 #ifdef CONFIG_CACHE_FEROCEON_L2
 568         feroceon_l2_init(is_l2_writethrough());
 569 #endif
 570 }