git.oblomov.eu Git - linux-2.6/blob - arch/arm/mach-orion5x/common.c

   1 /*
   2  * arch/arm/mach-orion5x/common.c
   3  *
   4  * Core functions for Marvell Orion 5x SoCs
   5  *
   6  * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
   7  *
   8  * This file is licensed under the terms of the GNU General Public
   9  * License version 2.  This program is licensed "as is" without any
  10  * warranty of any kind, whether express or implied.
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/serial_8250.h>
  17 #include <linux/mbus.h>
  18 #include <linux/mv643xx_eth.h>
  19 #include <linux/mv643xx_i2c.h>
  20 #include <linux/ata_platform.h>
  21 #include <asm/page.h>
  22 #include <asm/setup.h>
  23 #include <asm/timex.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/map.h>
  26 #include <asm/mach/time.h>
  27 #include <asm/arch/hardware.h>
  28 #include <asm/arch/orion5x.h>
  29 #include <asm/plat-orion/ehci-orion.h>
  30 #include <asm/plat-orion/orion_nand.h>
  31 #include <asm/plat-orion/time.h>
  32 #include "common.h"
  33
  34 /*****************************************************************************
  35  * I/O Address Mapping
  36  ****************************************************************************/
  37 static struct map_desc orion5x_io_desc[] __initdata = {
  38         {
  39                 .virtual        = ORION5X_REGS_VIRT_BASE,
  40                 .pfn            = __phys_to_pfn(ORION5X_REGS_PHYS_BASE),
  41                 .length         = ORION5X_REGS_SIZE,
  42                 .type           = MT_DEVICE,
  43         }, {
  44                 .virtual        = ORION5X_PCIE_IO_VIRT_BASE,
  45                 .pfn            = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
  46                 .length         = ORION5X_PCIE_IO_SIZE,
  47                 .type           = MT_DEVICE,
  48         }, {
  49                 .virtual        = ORION5X_PCI_IO_VIRT_BASE,
  50                 .pfn            = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
  51                 .length         = ORION5X_PCI_IO_SIZE,
  52                 .type           = MT_DEVICE,
  53         }, {
  54                 .virtual        = ORION5X_PCIE_WA_VIRT_BASE,
  55                 .pfn            = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),
  56                 .length         = ORION5X_PCIE_WA_SIZE,
  57                 .type           = MT_DEVICE,
  58         },
  59 };
  60
  61 void __init orion5x_map_io(void)
  62 {
  63         iotable_init(orion5x_io_desc, ARRAY_SIZE(orion5x_io_desc));
  64 }
  65
  66
  67 /*****************************************************************************
  68  * EHCI
  69  ****************************************************************************/
  70 static struct orion_ehci_data orion5x_ehci_data = {
  71         .dram           = &orion5x_mbus_dram_info,
  72 };
  73
  74 static u64 ehci_dmamask = 0xffffffffUL;
  75
  76
  77 /*****************************************************************************
  78  * EHCI0
  79  ****************************************************************************/
  80 static struct resource orion5x_ehci0_resources[] = {
  81         {
  82                 .start  = ORION5X_USB0_PHYS_BASE,
  83                 .end    = ORION5X_USB0_PHYS_BASE + SZ_4K - 1,
  84                 .flags  = IORESOURCE_MEM,
  85         }, {
  86                 .start  = IRQ_ORION5X_USB0_CTRL,
  87                 .end    = IRQ_ORION5X_USB0_CTRL,
  88                 .flags  = IORESOURCE_IRQ,
  89         },
  90 };
  91
  92 static struct platform_device orion5x_ehci0 = {
  93         .name           = "orion-ehci",
  94         .id             = 0,
  95         .dev            = {
  96                 .dma_mask               = &ehci_dmamask,
  97                 .coherent_dma_mask      = 0xffffffff,
  98                 .platform_data          = &orion5x_ehci_data,
  99         },
 100         .resource       = orion5x_ehci0_resources,
 101         .num_resources  = ARRAY_SIZE(orion5x_ehci0_resources),
 102 };
 103
 104 void __init orion5x_ehci0_init(void)
 105 {
 106         platform_device_register(&orion5x_ehci0);
 107 }
 108
 109
 110 /*****************************************************************************
 111  * EHCI1
 112  ****************************************************************************/
 113 static struct resource orion5x_ehci1_resources[] = {
 114         {
 115                 .start  = ORION5X_USB1_PHYS_BASE,
 116                 .end    = ORION5X_USB1_PHYS_BASE + SZ_4K - 1,
 117                 .flags  = IORESOURCE_MEM,
 118         }, {
 119                 .start  = IRQ_ORION5X_USB1_CTRL,
 120                 .end    = IRQ_ORION5X_USB1_CTRL,
 121                 .flags  = IORESOURCE_IRQ,
 122         },
 123 };
 124
 125 static struct platform_device orion5x_ehci1 = {
 126         .name           = "orion-ehci",
 127         .id             = 1,
 128         .dev            = {
 129                 .dma_mask               = &ehci_dmamask,
 130                 .coherent_dma_mask      = 0xffffffff,
 131                 .platform_data          = &orion5x_ehci_data,
 132         },
 133         .resource       = orion5x_ehci1_resources,
 134         .num_resources  = ARRAY_SIZE(orion5x_ehci1_resources),
 135 };
 136
 137 void __init orion5x_ehci1_init(void)
 138 {
 139         platform_device_register(&orion5x_ehci1);
 140 }
 141
 142
 143 /*****************************************************************************
 144  * GigE
 145  ****************************************************************************/
 146 struct mv643xx_eth_shared_platform_data orion5x_eth_shared_data = {
 147         .dram           = &orion5x_mbus_dram_info,
 148         .t_clk          = ORION5X_TCLK,
 149 };
 150
 151 static struct resource orion5x_eth_shared_resources[] = {
 152         {
 153                 .start  = ORION5X_ETH_PHYS_BASE + 0x2000,
 154                 .end    = ORION5X_ETH_PHYS_BASE + 0x3fff,
 155                 .flags  = IORESOURCE_MEM,
 156         },
 157 };
 158
 159 static struct platform_device orion5x_eth_shared = {
 160         .name           = MV643XX_ETH_SHARED_NAME,
 161         .id             = 0,
 162         .dev            = {
 163                 .platform_data  = &orion5x_eth_shared_data,
 164         },
 165         .num_resources  = 1,
 166         .resource       = orion5x_eth_shared_resources,
 167 };
 168
 169 static struct resource orion5x_eth_resources[] = {
 170         {
 171                 .name   = "eth irq",
 172                 .start  = IRQ_ORION5X_ETH_SUM,
 173                 .end    = IRQ_ORION5X_ETH_SUM,
 174                 .flags  = IORESOURCE_IRQ,
 175         },
 176 };
 177
 178 static struct platform_device orion5x_eth = {
 179         .name           = MV643XX_ETH_NAME,
 180         .id             = 0,
 181         .num_resources  = 1,
 182         .resource       = orion5x_eth_resources,
 183 };
 184
 185 void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
 186 {
 187         eth_data->shared = &orion5x_eth_shared;
 188         orion5x_eth.dev.platform_data = eth_data;
 189
 190         platform_device_register(&orion5x_eth_shared);
 191         platform_device_register(&orion5x_eth);
 192 }
 193
 194
 195 /*****************************************************************************
 196  * I2C
 197  ****************************************************************************/
 198 static struct mv64xxx_i2c_pdata orion5x_i2c_pdata = {
 199         .freq_m         = 8, /* assumes 166 MHz TCLK */
 200         .freq_n         = 3,
 201         .timeout        = 1000, /* Default timeout of 1 second */
 202 };
 203
 204 static struct resource orion5x_i2c_resources[] = {
 205         {
 206                 .name   = "i2c base",
 207                 .start  = I2C_PHYS_BASE,
 208                 .end    = I2C_PHYS_BASE + 0x1f,
 209                 .flags  = IORESOURCE_MEM,
 210         }, {
 211                 .name   = "i2c irq",
 212                 .start  = IRQ_ORION5X_I2C,
 213                 .end    = IRQ_ORION5X_I2C,
 214                 .flags  = IORESOURCE_IRQ,
 215         },
 216 };
 217
 218 static struct platform_device orion5x_i2c = {
 219         .name           = MV64XXX_I2C_CTLR_NAME,
 220         .id             = 0,
 221         .num_resources  = ARRAY_SIZE(orion5x_i2c_resources),
 222         .resource       = orion5x_i2c_resources,
 223         .dev            = {
 224                 .platform_data  = &orion5x_i2c_pdata,
 225         },
 226 };
 227
 228 void __init orion5x_i2c_init(void)
 229 {
 230         platform_device_register(&orion5x_i2c);
 231 }
 232
 233
 234 /*****************************************************************************
 235  * SATA
 236  ****************************************************************************/
 237 static struct resource orion5x_sata_resources[] = {
 238         {
 239                 .name   = "sata base",
 240                 .start  = ORION5X_SATA_PHYS_BASE,
 241                 .end    = ORION5X_SATA_PHYS_BASE + 0x5000 - 1,
 242                 .flags  = IORESOURCE_MEM,
 243         }, {
 244                 .name   = "sata irq",
 245                 .start  = IRQ_ORION5X_SATA,
 246                 .end    = IRQ_ORION5X_SATA,
 247                 .flags  = IORESOURCE_IRQ,
 248         },
 249 };
 250
 251 static struct platform_device orion5x_sata = {
 252         .name           = "sata_mv",
 253         .id             = 0,
 254         .dev            = {
 255                 .coherent_dma_mask      = 0xffffffff,
 256         },
 257         .num_resources  = ARRAY_SIZE(orion5x_sata_resources),
 258         .resource       = orion5x_sata_resources,
 259 };
 260
 261 void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
 262 {
 263         sata_data->dram = &orion5x_mbus_dram_info;
 264         orion5x_sata.dev.platform_data = sata_data;
 265         platform_device_register(&orion5x_sata);
 266 }
 267
 268
 269 /*****************************************************************************
 270  * UART0
 271  ****************************************************************************/
 272 static struct plat_serial8250_port orion5x_uart0_data[] = {
 273         {
 274                 .mapbase        = UART0_PHYS_BASE,
 275                 .membase        = (char *)UART0_VIRT_BASE,
 276                 .irq            = IRQ_ORION5X_UART0,
 277                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 278                 .iotype         = UPIO_MEM,
 279                 .regshift       = 2,
 280                 .uartclk        = ORION5X_TCLK,
 281         }, {
 282         },
 283 };
 284
 285 static struct resource orion5x_uart0_resources[] = {
 286         {
 287                 .start          = UART0_PHYS_BASE,
 288                 .end            = UART0_PHYS_BASE + 0xff,
 289                 .flags          = IORESOURCE_MEM,
 290         }, {
 291                 .start          = IRQ_ORION5X_UART0,
 292                 .end            = IRQ_ORION5X_UART0,
 293                 .flags          = IORESOURCE_IRQ,
 294         },
 295 };
 296
 297 static struct platform_device orion5x_uart0 = {
 298         .name                   = "serial8250",
 299         .id                     = PLAT8250_DEV_PLATFORM,
 300         .dev                    = {
 301                 .platform_data  = orion5x_uart0_data,
 302         },
 303         .resource               = orion5x_uart0_resources,
 304         .num_resources          = ARRAY_SIZE(orion5x_uart0_resources),
 305 };
 306
 307 void __init orion5x_uart0_init(void)
 308 {
 309         platform_device_register(&orion5x_uart0);
 310 }
 311
 312
 313 /*****************************************************************************
 314  * UART1
 315  ****************************************************************************/
 316 static struct plat_serial8250_port orion5x_uart1_data[] = {
 317         {
 318                 .mapbase        = UART1_PHYS_BASE,
 319                 .membase        = (char *)UART1_VIRT_BASE,
 320                 .irq            = IRQ_ORION5X_UART1,
 321                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 322                 .iotype         = UPIO_MEM,
 323                 .regshift       = 2,
 324                 .uartclk        = ORION5X_TCLK,
 325         }, {
 326         },
 327 };
 328
 329 static struct resource orion5x_uart1_resources[] = {
 330         {
 331                 .start          = UART1_PHYS_BASE,
 332                 .end            = UART1_PHYS_BASE + 0xff,
 333                 .flags          = IORESOURCE_MEM,
 334         }, {
 335                 .start          = IRQ_ORION5X_UART1,
 336                 .end            = IRQ_ORION5X_UART1,
 337                 .flags          = IORESOURCE_IRQ,
 338         },
 339 };
 340
 341 static struct platform_device orion5x_uart1 = {
 342         .name                   = "serial8250",
 343         .id                     = PLAT8250_DEV_PLATFORM1,
 344         .dev                    = {
 345                 .platform_data  = orion5x_uart1_data,
 346         },
 347         .resource               = orion5x_uart1_resources,
 348         .num_resources          = ARRAY_SIZE(orion5x_uart1_resources),
 349 };
 350
 351 void __init orion5x_uart1_init(void)
 352 {
 353         platform_device_register(&orion5x_uart1);
 354 }
 355
 356
 357 /*****************************************************************************
 358  * Time handling
 359  ****************************************************************************/
 360 static void orion5x_timer_init(void)
 361 {
 362         orion_time_init(IRQ_ORION5X_BRIDGE, ORION5X_TCLK);
 363 }
 364
 365 struct sys_timer orion5x_timer = {
 366         .init = orion5x_timer_init,
 367 };
 368
 369
 370 /*****************************************************************************
 371  * General
 372  ****************************************************************************/
 373 /*
 374  * Identify device ID and rev from PCIe configuration header space '0'.
 375  */
 376 static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name)
 377 {
 378         orion5x_pcie_id(dev, rev);
 379
 380         if (*dev == MV88F5281_DEV_ID) {
 381                 if (*rev == MV88F5281_REV_D2) {
 382                         *dev_name = "MV88F5281-D2";
 383                 } else if (*rev == MV88F5281_REV_D1) {
 384                         *dev_name = "MV88F5281-D1";
 385                 } else {
 386                         *dev_name = "MV88F5281-Rev-Unsupported";
 387                 }
 388         } else if (*dev == MV88F5182_DEV_ID) {
 389                 if (*rev == MV88F5182_REV_A2) {
 390                         *dev_name = "MV88F5182-A2";
 391                 } else {
 392                         *dev_name = "MV88F5182-Rev-Unsupported";
 393                 }
 394         } else if (*dev == MV88F5181_DEV_ID) {
 395                 if (*rev == MV88F5181_REV_B1) {
 396                         *dev_name = "MV88F5181-Rev-B1";
 397                 } else if (*rev == MV88F5181L_REV_A1) {
 398                         *dev_name = "MV88F5181L-Rev-A1";
 399                 } else {
 400                         *dev_name = "MV88F5181(L)-Rev-Unsupported";
 401                 }
 402         } else {
 403                 *dev_name = "Device-Unknown";
 404         }
 405 }
 406
 407 void __init orion5x_init(void)
 408 {
 409         char *dev_name;
 410         u32 dev, rev;
 411
 412         orion5x_id(&dev, &rev, &dev_name);
 413         printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION5X_TCLK);
 414
 415         /*
 416          * Setup Orion address map
 417          */
 418         orion5x_setup_cpu_mbus_bridge();
 419 }
 420
 421 /*
 422  * Many orion-based systems have buggy bootloader implementations.
 423  * This is a common fixup for bogus memory tags.
 424  */
 425 void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t,
 426                             char **from, struct meminfo *meminfo)
 427 {
 428         for (; t->hdr.size; t = tag_next(t))
 429                 if (t->hdr.tag == ATAG_MEM &&
 430                     (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
 431                      t->u.mem.start & ~PAGE_MASK)) {
 432                         printk(KERN_WARNING
 433                                "Clearing invalid memory bank %dKB@0x%08x\n",
 434                                t->u.mem.size / 1024, t->u.mem.start);
 435                         t->hdr.tag = 0;
 436                 }
 437 }