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   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         {
  45                 .virtual        = ORION5X_PCIE_IO_VIRT_BASE,
  46                 .pfn            = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
  47                 .length         = ORION5X_PCIE_IO_SIZE,
  48                 .type           = MT_DEVICE
  49         },
  50         {
  51                 .virtual        = ORION5X_PCI_IO_VIRT_BASE,
  52                 .pfn            = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
  53                 .length         = ORION5X_PCI_IO_SIZE,
  54                 .type           = MT_DEVICE
  55         },
  56         {
  57                 .virtual        = ORION5X_PCIE_WA_VIRT_BASE,
  58                 .pfn            = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),
  59                 .length         = ORION5X_PCIE_WA_SIZE,
  60                 .type           = MT_DEVICE
  61         },
  62 };
  63
  64 void __init orion5x_map_io(void)
  65 {
  66         iotable_init(orion5x_io_desc, ARRAY_SIZE(orion5x_io_desc));
  67 }
  68
  69 /*****************************************************************************
  70  * UART
  71  ****************************************************************************/
  72
  73 static struct resource orion5x_uart_resources[] = {
  74         {
  75                 .start          = UART0_PHYS_BASE,
  76                 .end            = UART0_PHYS_BASE + 0xff,
  77                 .flags          = IORESOURCE_MEM,
  78         },
  79         {
  80                 .start          = IRQ_ORION5X_UART0,
  81                 .end            = IRQ_ORION5X_UART0,
  82                 .flags          = IORESOURCE_IRQ,
  83         },
  84         {
  85                 .start          = UART1_PHYS_BASE,
  86                 .end            = UART1_PHYS_BASE + 0xff,
  87                 .flags          = IORESOURCE_MEM,
  88         },
  89         {
  90                 .start          = IRQ_ORION5X_UART1,
  91                 .end            = IRQ_ORION5X_UART1,
  92                 .flags          = IORESOURCE_IRQ,
  93         },
  94 };
  95
  96 static struct plat_serial8250_port orion5x_uart_data[] = {
  97         {
  98                 .mapbase        = UART0_PHYS_BASE,
  99                 .membase        = (char *)UART0_VIRT_BASE,
 100                 .irq            = IRQ_ORION5X_UART0,
 101                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 102                 .iotype         = UPIO_MEM,
 103                 .regshift       = 2,
 104                 .uartclk        = ORION5X_TCLK,
 105         },
 106         {
 107                 .mapbase        = UART1_PHYS_BASE,
 108                 .membase        = (char *)UART1_VIRT_BASE,
 109                 .irq            = IRQ_ORION5X_UART1,
 110                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 111                 .iotype         = UPIO_MEM,
 112                 .regshift       = 2,
 113                 .uartclk        = ORION5X_TCLK,
 114         },
 115         { },
 116 };
 117
 118 static struct platform_device orion5x_uart = {
 119         .name                   = "serial8250",
 120         .id                     = PLAT8250_DEV_PLATFORM,
 121         .dev                    = {
 122                 .platform_data  = orion5x_uart_data,
 123         },
 124         .resource               = orion5x_uart_resources,
 125         .num_resources          = ARRAY_SIZE(orion5x_uart_resources),
 126 };
 127
 128 /*******************************************************************************
 129  * USB Controller - 2 interfaces
 130  ******************************************************************************/
 131
 132 static struct resource orion5x_ehci0_resources[] = {
 133         {
 134                 .start  = ORION5X_USB0_PHYS_BASE,
 135                 .end    = ORION5X_USB0_PHYS_BASE + SZ_4K - 1,
 136                 .flags  = IORESOURCE_MEM,
 137         },
 138         {
 139                 .start  = IRQ_ORION5X_USB0_CTRL,
 140                 .end    = IRQ_ORION5X_USB0_CTRL,
 141                 .flags  = IORESOURCE_IRQ,
 142         },
 143 };
 144
 145 static struct resource orion5x_ehci1_resources[] = {
 146         {
 147                 .start  = ORION5X_USB1_PHYS_BASE,
 148                 .end    = ORION5X_USB1_PHYS_BASE + SZ_4K - 1,
 149                 .flags  = IORESOURCE_MEM,
 150         },
 151         {
 152                 .start  = IRQ_ORION5X_USB1_CTRL,
 153                 .end    = IRQ_ORION5X_USB1_CTRL,
 154                 .flags  = IORESOURCE_IRQ,
 155         },
 156 };
 157
 158 static struct orion_ehci_data orion5x_ehci_data = {
 159         .dram           = &orion5x_mbus_dram_info,
 160 };
 161
 162 static u64 ehci_dmamask = 0xffffffffUL;
 163
 164 static struct platform_device orion5x_ehci0 = {
 165         .name           = "orion-ehci",
 166         .id             = 0,
 167         .dev            = {
 168                 .dma_mask               = &ehci_dmamask,
 169                 .coherent_dma_mask      = 0xffffffff,
 170                 .platform_data          = &orion5x_ehci_data,
 171         },
 172         .resource       = orion5x_ehci0_resources,
 173         .num_resources  = ARRAY_SIZE(orion5x_ehci0_resources),
 174 };
 175
 176 static struct platform_device orion5x_ehci1 = {
 177         .name           = "orion-ehci",
 178         .id             = 1,
 179         .dev            = {
 180                 .dma_mask               = &ehci_dmamask,
 181                 .coherent_dma_mask      = 0xffffffff,
 182                 .platform_data          = &orion5x_ehci_data,
 183         },
 184         .resource       = orion5x_ehci1_resources,
 185         .num_resources  = ARRAY_SIZE(orion5x_ehci1_resources),
 186 };
 187
 188 /*****************************************************************************
 189  * Gigabit Ethernet port
 190  * (The Orion and Discovery (MV643xx) families use the same Ethernet driver)
 191  ****************************************************************************/
 192
 193 struct mv643xx_eth_shared_platform_data orion5x_eth_shared_data = {
 194         .dram           = &orion5x_mbus_dram_info,
 195 };
 196
 197 static struct resource orion5x_eth_shared_resources[] = {
 198         {
 199                 .start  = ORION5X_ETH_PHYS_BASE + 0x2000,
 200                 .end    = ORION5X_ETH_PHYS_BASE + 0x3fff,
 201                 .flags  = IORESOURCE_MEM,
 202         },
 203 };
 204
 205 static struct platform_device orion5x_eth_shared = {
 206         .name           = MV643XX_ETH_SHARED_NAME,
 207         .id             = 0,
 208         .dev            = {
 209                 .platform_data  = &orion5x_eth_shared_data,
 210         },
 211         .num_resources  = 1,
 212         .resource       = orion5x_eth_shared_resources,
 213 };
 214
 215 static struct resource orion5x_eth_resources[] = {
 216         {
 217                 .name   = "eth irq",
 218                 .start  = IRQ_ORION5X_ETH_SUM,
 219                 .end    = IRQ_ORION5X_ETH_SUM,
 220                 .flags  = IORESOURCE_IRQ,
 221         }
 222 };
 223
 224 static struct platform_device orion5x_eth = {
 225         .name           = MV643XX_ETH_NAME,
 226         .id             = 0,
 227         .num_resources  = 1,
 228         .resource       = orion5x_eth_resources,
 229 };
 230
 231 void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
 232 {
 233         eth_data->shared = &orion5x_eth_shared;
 234         orion5x_eth.dev.platform_data = eth_data;
 235
 236         platform_device_register(&orion5x_eth_shared);
 237         platform_device_register(&orion5x_eth);
 238 }
 239
 240 /*****************************************************************************
 241  * I2C controller
 242  * (The Orion and Discovery (MV643xx) families share the same I2C controller)
 243  ****************************************************************************/
 244
 245 static struct mv64xxx_i2c_pdata orion5x_i2c_pdata = {
 246         .freq_m         = 8, /* assumes 166 MHz TCLK */
 247         .freq_n         = 3,
 248         .timeout        = 1000, /* Default timeout of 1 second */
 249 };
 250
 251 static struct resource orion5x_i2c_resources[] = {
 252         {
 253                 .name   = "i2c base",
 254                 .start  = I2C_PHYS_BASE,
 255                 .end    = I2C_PHYS_BASE + 0x20 -1,
 256                 .flags  = IORESOURCE_MEM,
 257         },
 258         {
 259                 .name   = "i2c irq",
 260                 .start  = IRQ_ORION5X_I2C,
 261                 .end    = IRQ_ORION5X_I2C,
 262                 .flags  = IORESOURCE_IRQ,
 263         },
 264 };
 265
 266 static struct platform_device orion5x_i2c = {
 267         .name           = MV64XXX_I2C_CTLR_NAME,
 268         .id             = 0,
 269         .num_resources  = ARRAY_SIZE(orion5x_i2c_resources),
 270         .resource       = orion5x_i2c_resources,
 271         .dev            = {
 272                 .platform_data = &orion5x_i2c_pdata,
 273         },
 274 };
 275
 276 /*****************************************************************************
 277  * Sata port
 278  ****************************************************************************/
 279 static struct resource orion5x_sata_resources[] = {
 280         {
 281                 .name   = "sata base",
 282                 .start  = ORION5X_SATA_PHYS_BASE,
 283                 .end    = ORION5X_SATA_PHYS_BASE + 0x5000 - 1,
 284                 .flags  = IORESOURCE_MEM,
 285         },
 286         {
 287                 .name   = "sata irq",
 288                 .start  = IRQ_ORION5X_SATA,
 289                 .end    = IRQ_ORION5X_SATA,
 290                 .flags  = IORESOURCE_IRQ,
 291         },
 292 };
 293
 294 static struct platform_device orion5x_sata = {
 295         .name           = "sata_mv",
 296         .id             = 0,
 297         .dev            = {
 298                 .coherent_dma_mask      = 0xffffffff,
 299         },
 300         .num_resources  = ARRAY_SIZE(orion5x_sata_resources),
 301         .resource       = orion5x_sata_resources,
 302 };
 303
 304 void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
 305 {
 306         sata_data->dram = &orion5x_mbus_dram_info;
 307         orion5x_sata.dev.platform_data = sata_data;
 308         platform_device_register(&orion5x_sata);
 309 }
 310
 311 /*****************************************************************************
 312  * Time handling
 313  ****************************************************************************/
 314
 315 static void orion5x_timer_init(void)
 316 {
 317         orion_time_init(IRQ_ORION5X_BRIDGE, ORION5X_TCLK);
 318 }
 319
 320 struct sys_timer orion5x_timer = {
 321         .init = orion5x_timer_init,
 322 };
 323
 324 /*****************************************************************************
 325  * General
 326  ****************************************************************************/
 327
 328 /*
 329  * Identify device ID and rev from PCIe configuration header space '0'.
 330  */
 331 static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name)
 332 {
 333         orion5x_pcie_id(dev, rev);
 334
 335         if (*dev == MV88F5281_DEV_ID) {
 336                 if (*rev == MV88F5281_REV_D2) {
 337                         *dev_name = "MV88F5281-D2";
 338                 } else if (*rev == MV88F5281_REV_D1) {
 339                         *dev_name = "MV88F5281-D1";
 340                 } else {
 341                         *dev_name = "MV88F5281-Rev-Unsupported";
 342                 }
 343         } else if (*dev == MV88F5182_DEV_ID) {
 344                 if (*rev == MV88F5182_REV_A2) {
 345                         *dev_name = "MV88F5182-A2";
 346                 } else {
 347                         *dev_name = "MV88F5182-Rev-Unsupported";
 348                 }
 349         } else if (*dev == MV88F5181_DEV_ID) {
 350                 if (*rev == MV88F5181_REV_B1) {
 351                         *dev_name = "MV88F5181-Rev-B1";
 352                 } else {
 353                         *dev_name = "MV88F5181-Rev-Unsupported";
 354                 }
 355         } else {
 356                 *dev_name = "Device-Unknown";
 357         }
 358 }
 359
 360 void __init orion5x_init(void)
 361 {
 362         char *dev_name;
 363         u32 dev, rev;
 364
 365         orion5x_id(&dev, &rev, &dev_name);
 366         printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION5X_TCLK);
 367
 368         /*
 369          * Setup Orion address map
 370          */
 371         orion5x_setup_cpu_mbus_bridge();
 372
 373         /*
 374          * Register devices.
 375          */
 376         platform_device_register(&orion5x_uart);
 377         platform_device_register(&orion5x_ehci0);
 378         if (dev == MV88F5182_DEV_ID)
 379                 platform_device_register(&orion5x_ehci1);
 380         platform_device_register(&orion5x_i2c);
 381 }
 382
 383 /*
 384  * Many orion-based systems have buggy bootloader implementations.
 385  * This is a common fixup for bogus memory tags.
 386  */
 387 void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t,
 388                             char **from, struct meminfo *meminfo)
 389 {
 390         for (; t->hdr.size; t = tag_next(t))
 391                 if (t->hdr.tag == ATAG_MEM &&
 392                     (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
 393                      t->u.mem.start & ~PAGE_MASK)) {
 394                         printk(KERN_WARNING
 395                                "Clearing invalid memory bank %dKB@0x%08x\n",
 396                                t->u.mem.size / 1024, t->u.mem.start);
 397                         t->hdr.tag = 0;
 398                 }
 399 }