arch/ppc/syslib/mv64x60.c

   1 /*
   2  * Common routines for the Marvell/Galileo Discovery line of host bridges
   3  * (gt64260, mv64360, mv64460, ...).
   4  *
   5  * Author: Mark A. Greer <mgreer@mvista.com>
   6  *
   7  * 2004 (c) MontaVista, Software, Inc.  This file is licensed under
   8  * the terms of the GNU General Public License version 2.  This program
   9  * is licensed "as is" without any warranty of any kind, whether express
  10  * or implied.
  11  */
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/pci.h>
  15 #include <linux/slab.h>
  16 #include <linux/module.h>
  17 #include <linux/string.h>
  18 #include <linux/spinlock.h>
  19 #include <linux/mv643xx.h>
  20 #include <linux/platform_device.h>
  21
  22 #include <asm/byteorder.h>
  23 #include <asm/io.h>
  24 #include <asm/irq.h>
  25 #include <asm/uaccess.h>
  26 #include <asm/machdep.h>
  27 #include <asm/pci-bridge.h>
  28 #include <asm/delay.h>
  29 #include <asm/mv64x60.h>
  30
  31
  32 u8 mv64x60_pci_exclude_bridge = 1;
  33 DEFINE_SPINLOCK(mv64x60_lock);
  34
  35 static phys_addr_t      mv64x60_bridge_pbase;
  36 static void             __iomem *mv64x60_bridge_vbase;
  37 static u32              mv64x60_bridge_type = MV64x60_TYPE_INVALID;
  38 static u32              mv64x60_bridge_rev;
  39 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
  40 static struct pci_controller    sysfs_hose_a;
  41 #endif
  42
  43 static u32 gt64260_translate_size(u32 base, u32 size, u32 num_bits);
  44 static u32 gt64260_untranslate_size(u32 base, u32 size, u32 num_bits);
  45 static void gt64260_set_pci2mem_window(struct pci_controller *hose, u32 bus,
  46         u32 window, u32 base);
  47 static void gt64260_set_pci2regs_window(struct mv64x60_handle *bh,
  48         struct pci_controller *hose, u32 bus, u32 base);
  49 static u32 gt64260_is_enabled_32bit(struct mv64x60_handle *bh, u32 window);
  50 static void gt64260_enable_window_32bit(struct mv64x60_handle *bh, u32 window);
  51 static void gt64260_disable_window_32bit(struct mv64x60_handle *bh, u32 window);
  52 static void gt64260_enable_window_64bit(struct mv64x60_handle *bh, u32 window);
  53 static void gt64260_disable_window_64bit(struct mv64x60_handle *bh, u32 window);
  54 static void gt64260_disable_all_windows(struct mv64x60_handle *bh,
  55         struct mv64x60_setup_info *si);
  56 static void gt64260a_chip_specific_init(struct mv64x60_handle *bh,
  57         struct mv64x60_setup_info *si);
  58 static void gt64260b_chip_specific_init(struct mv64x60_handle *bh,
  59         struct mv64x60_setup_info *si);
  60
  61 static u32 mv64360_translate_size(u32 base, u32 size, u32 num_bits);
  62 static u32 mv64360_untranslate_size(u32 base, u32 size, u32 num_bits);
  63 static void mv64360_set_pci2mem_window(struct pci_controller *hose, u32 bus,
  64         u32 window, u32 base);
  65 static void mv64360_set_pci2regs_window(struct mv64x60_handle *bh,
  66         struct pci_controller *hose, u32 bus, u32 base);
  67 static u32 mv64360_is_enabled_32bit(struct mv64x60_handle *bh, u32 window);
  68 static void mv64360_enable_window_32bit(struct mv64x60_handle *bh, u32 window);
  69 static void mv64360_disable_window_32bit(struct mv64x60_handle *bh, u32 window);
  70 static void mv64360_enable_window_64bit(struct mv64x60_handle *bh, u32 window);
  71 static void mv64360_disable_window_64bit(struct mv64x60_handle *bh, u32 window);
  72 static void mv64360_disable_all_windows(struct mv64x60_handle *bh,
  73         struct mv64x60_setup_info *si);
  74 static void mv64360_config_io2mem_windows(struct mv64x60_handle *bh,
  75         struct mv64x60_setup_info *si,
  76         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2]);
  77 static void mv64360_set_mpsc2regs_window(struct mv64x60_handle *bh, u32 base);
  78 static void mv64360_chip_specific_init(struct mv64x60_handle *bh,
  79         struct mv64x60_setup_info *si);
  80 static void mv64460_chip_specific_init(struct mv64x60_handle *bh,
  81         struct mv64x60_setup_info *si);
  82
  83
  84 /*
  85  * Define tables that have the chip-specific info for each type of
  86  * Marvell bridge chip.
  87  */
  88 static struct mv64x60_chip_info gt64260a_ci __initdata = { /* GT64260A */
  89         .translate_size         = gt64260_translate_size,
  90         .untranslate_size       = gt64260_untranslate_size,
  91         .set_pci2mem_window     = gt64260_set_pci2mem_window,
  92         .set_pci2regs_window    = gt64260_set_pci2regs_window,
  93         .is_enabled_32bit       = gt64260_is_enabled_32bit,
  94         .enable_window_32bit    = gt64260_enable_window_32bit,
  95         .disable_window_32bit   = gt64260_disable_window_32bit,
  96         .enable_window_64bit    = gt64260_enable_window_64bit,
  97         .disable_window_64bit   = gt64260_disable_window_64bit,
  98         .disable_all_windows    = gt64260_disable_all_windows,
  99         .chip_specific_init     = gt64260a_chip_specific_init,
 100         .window_tab_32bit       = gt64260_32bit_windows,
 101         .window_tab_64bit       = gt64260_64bit_windows,
 102 };
 103
 104 static struct mv64x60_chip_info gt64260b_ci __initdata = { /* GT64260B */
 105         .translate_size         = gt64260_translate_size,
 106         .untranslate_size       = gt64260_untranslate_size,
 107         .set_pci2mem_window     = gt64260_set_pci2mem_window,
 108         .set_pci2regs_window    = gt64260_set_pci2regs_window,
 109         .is_enabled_32bit       = gt64260_is_enabled_32bit,
 110         .enable_window_32bit    = gt64260_enable_window_32bit,
 111         .disable_window_32bit   = gt64260_disable_window_32bit,
 112         .enable_window_64bit    = gt64260_enable_window_64bit,
 113         .disable_window_64bit   = gt64260_disable_window_64bit,
 114         .disable_all_windows    = gt64260_disable_all_windows,
 115         .chip_specific_init     = gt64260b_chip_specific_init,
 116         .window_tab_32bit       = gt64260_32bit_windows,
 117         .window_tab_64bit       = gt64260_64bit_windows,
 118 };
 119
 120 static struct mv64x60_chip_info mv64360_ci __initdata = { /* MV64360 */
 121         .translate_size         = mv64360_translate_size,
 122         .untranslate_size       = mv64360_untranslate_size,
 123         .set_pci2mem_window     = mv64360_set_pci2mem_window,
 124         .set_pci2regs_window    = mv64360_set_pci2regs_window,
 125         .is_enabled_32bit       = mv64360_is_enabled_32bit,
 126         .enable_window_32bit    = mv64360_enable_window_32bit,
 127         .disable_window_32bit   = mv64360_disable_window_32bit,
 128         .enable_window_64bit    = mv64360_enable_window_64bit,
 129         .disable_window_64bit   = mv64360_disable_window_64bit,
 130         .disable_all_windows    = mv64360_disable_all_windows,
 131         .config_io2mem_windows  = mv64360_config_io2mem_windows,
 132         .set_mpsc2regs_window   = mv64360_set_mpsc2regs_window,
 133         .chip_specific_init     = mv64360_chip_specific_init,
 134         .window_tab_32bit       = mv64360_32bit_windows,
 135         .window_tab_64bit       = mv64360_64bit_windows,
 136 };
 137
 138 static struct mv64x60_chip_info mv64460_ci __initdata = { /* MV64460 */
 139         .translate_size         = mv64360_translate_size,
 140         .untranslate_size       = mv64360_untranslate_size,
 141         .set_pci2mem_window     = mv64360_set_pci2mem_window,
 142         .set_pci2regs_window    = mv64360_set_pci2regs_window,
 143         .is_enabled_32bit       = mv64360_is_enabled_32bit,
 144         .enable_window_32bit    = mv64360_enable_window_32bit,
 145         .disable_window_32bit   = mv64360_disable_window_32bit,
 146         .enable_window_64bit    = mv64360_enable_window_64bit,
 147         .disable_window_64bit   = mv64360_disable_window_64bit,
 148         .disable_all_windows    = mv64360_disable_all_windows,
 149         .config_io2mem_windows  = mv64360_config_io2mem_windows,
 150         .set_mpsc2regs_window   = mv64360_set_mpsc2regs_window,
 151         .chip_specific_init     = mv64460_chip_specific_init,
 152         .window_tab_32bit       = mv64360_32bit_windows,
 153         .window_tab_64bit       = mv64360_64bit_windows,
 154 };
 155
 156 /*
 157  *****************************************************************************
 158  *
 159  *      Platform Device Definitions
 160  *
 161  *****************************************************************************
 162  */
 163 #ifdef CONFIG_SERIAL_MPSC
 164 static struct mpsc_shared_pdata mv64x60_mpsc_shared_pdata = {
 165         .mrr_val                = 0x3ffffe38,
 166         .rcrr_val               = 0,
 167         .tcrr_val               = 0,
 168         .intr_cause_val         = 0,
 169         .intr_mask_val          = 0,
 170 };
 171
 172 static struct resource mv64x60_mpsc_shared_resources[] = {
 173         /* Do not change the order of the IORESOURCE_MEM resources */
 174         [0] = {
 175                 .name   = "mpsc routing base",
 176                 .start  = MV64x60_MPSC_ROUTING_OFFSET,
 177                 .end    = MV64x60_MPSC_ROUTING_OFFSET +
 178                         MPSC_ROUTING_REG_BLOCK_SIZE - 1,
 179                 .flags  = IORESOURCE_MEM,
 180         },
 181         [1] = {
 182                 .name   = "sdma intr base",
 183                 .start  = MV64x60_SDMA_INTR_OFFSET,
 184                 .end    = MV64x60_SDMA_INTR_OFFSET +
 185                         MPSC_SDMA_INTR_REG_BLOCK_SIZE - 1,
 186                 .flags  = IORESOURCE_MEM,
 187         },
 188 };
 189
 190 static struct platform_device mpsc_shared_device = { /* Shared device */
 191         .name           = MPSC_SHARED_NAME,
 192         .id             = 0,
 193         .num_resources  = ARRAY_SIZE(mv64x60_mpsc_shared_resources),
 194         .resource       = mv64x60_mpsc_shared_resources,
 195         .dev = {
 196                 .platform_data = &mv64x60_mpsc_shared_pdata,
 197         },
 198 };
 199
 200 static struct mpsc_pdata mv64x60_mpsc0_pdata = {
 201         .mirror_regs            = 0,
 202         .cache_mgmt             = 0,
 203         .max_idle               = 0,
 204         .default_baud           = 9600,
 205         .default_bits           = 8,
 206         .default_parity         = 'n',
 207         .default_flow           = 'n',
 208         .chr_1_val              = 0x00000000,
 209         .chr_2_val              = 0x00000000,
 210         .chr_10_val             = 0x00000003,
 211         .mpcr_val               = 0,
 212         .bcr_val                = 0,
 213         .brg_can_tune           = 0,
 214         .brg_clk_src            = 8,            /* Default to TCLK */
 215         .brg_clk_freq           = 100000000,    /* Default to 100 MHz */
 216 };
 217
 218 static struct resource mv64x60_mpsc0_resources[] = {
 219         /* Do not change the order of the IORESOURCE_MEM resources */
 220         [0] = {
 221                 .name   = "mpsc 0 base",
 222                 .start  = MV64x60_MPSC_0_OFFSET,
 223                 .end    = MV64x60_MPSC_0_OFFSET + MPSC_REG_BLOCK_SIZE - 1,
 224                 .flags  = IORESOURCE_MEM,
 225         },
 226         [1] = {
 227                 .name   = "sdma 0 base",
 228                 .start  = MV64x60_SDMA_0_OFFSET,
 229                 .end    = MV64x60_SDMA_0_OFFSET + MPSC_SDMA_REG_BLOCK_SIZE - 1,
 230                 .flags  = IORESOURCE_MEM,
 231         },
 232         [2] = {
 233                 .name   = "brg 0 base",
 234                 .start  = MV64x60_BRG_0_OFFSET,
 235                 .end    = MV64x60_BRG_0_OFFSET + MPSC_BRG_REG_BLOCK_SIZE - 1,
 236                 .flags  = IORESOURCE_MEM,
 237         },
 238         [3] = {
 239                 .name   = "sdma 0 irq",
 240                 .start  = MV64x60_IRQ_SDMA_0,
 241                 .end    = MV64x60_IRQ_SDMA_0,
 242                 .flags  = IORESOURCE_IRQ,
 243         },
 244 };
 245
 246 static struct platform_device mpsc0_device = {
 247         .name           = MPSC_CTLR_NAME,
 248         .id             = 0,
 249         .num_resources  = ARRAY_SIZE(mv64x60_mpsc0_resources),
 250         .resource       = mv64x60_mpsc0_resources,
 251         .dev = {
 252                 .platform_data = &mv64x60_mpsc0_pdata,
 253         },
 254 };
 255
 256 static struct mpsc_pdata mv64x60_mpsc1_pdata = {
 257         .mirror_regs            = 0,
 258         .cache_mgmt             = 0,
 259         .max_idle               = 0,
 260         .default_baud           = 9600,
 261         .default_bits           = 8,
 262         .default_parity         = 'n',
 263         .default_flow           = 'n',
 264         .chr_1_val              = 0x00000000,
 265         .chr_1_val              = 0x00000000,
 266         .chr_2_val              = 0x00000000,
 267         .chr_10_val             = 0x00000003,
 268         .mpcr_val               = 0,
 269         .bcr_val                = 0,
 270         .brg_can_tune           = 0,
 271         .brg_clk_src            = 8,            /* Default to TCLK */
 272         .brg_clk_freq           = 100000000,    /* Default to 100 MHz */
 273 };
 274
 275 static struct resource mv64x60_mpsc1_resources[] = {
 276         /* Do not change the order of the IORESOURCE_MEM resources */
 277         [0] = {
 278                 .name   = "mpsc 1 base",
 279                 .start  = MV64x60_MPSC_1_OFFSET,
 280                 .end    = MV64x60_MPSC_1_OFFSET + MPSC_REG_BLOCK_SIZE - 1,
 281                 .flags  = IORESOURCE_MEM,
 282         },
 283         [1] = {
 284                 .name   = "sdma 1 base",
 285                 .start  = MV64x60_SDMA_1_OFFSET,
 286                 .end    = MV64x60_SDMA_1_OFFSET + MPSC_SDMA_REG_BLOCK_SIZE - 1,
 287                 .flags  = IORESOURCE_MEM,
 288         },
 289         [2] = {
 290                 .name   = "brg 1 base",
 291                 .start  = MV64x60_BRG_1_OFFSET,
 292                 .end    = MV64x60_BRG_1_OFFSET + MPSC_BRG_REG_BLOCK_SIZE - 1,
 293                 .flags  = IORESOURCE_MEM,
 294         },
 295         [3] = {
 296                 .name   = "sdma 1 irq",
 297                 .start  = MV64360_IRQ_SDMA_1,
 298                 .end    = MV64360_IRQ_SDMA_1,
 299                 .flags  = IORESOURCE_IRQ,
 300         },
 301 };
 302
 303 static struct platform_device mpsc1_device = {
 304         .name           = MPSC_CTLR_NAME,
 305         .id             = 1,
 306         .num_resources  = ARRAY_SIZE(mv64x60_mpsc1_resources),
 307         .resource       = mv64x60_mpsc1_resources,
 308         .dev = {
 309                 .platform_data = &mv64x60_mpsc1_pdata,
 310         },
 311 };
 312 #endif
 313
 314 #if defined(CONFIG_MV643XX_ETH) || defined(CONFIG_MV643XX_ETH_MODULE)
 315 static struct resource mv64x60_eth_shared_resources[] = {
 316         [0] = {
 317                 .name   = "ethernet shared base",
 318                 .start  = MV643XX_ETH_SHARED_REGS,
 319                 .end    = MV643XX_ETH_SHARED_REGS +
 320                                         MV643XX_ETH_SHARED_REGS_SIZE - 1,
 321                 .flags  = IORESOURCE_MEM,
 322         },
 323 };
 324
 325 static struct platform_device mv64x60_eth_shared_device = {
 326         .name           = MV643XX_ETH_SHARED_NAME,
 327         .id             = 0,
 328         .num_resources  = ARRAY_SIZE(mv64x60_eth_shared_resources),
 329         .resource       = mv64x60_eth_shared_resources,
 330 };
 331
 332 #ifdef CONFIG_MV643XX_ETH_0
 333 static struct resource mv64x60_eth0_resources[] = {
 334         [0] = {
 335                 .name   = "eth0 irq",
 336                 .start  = MV64x60_IRQ_ETH_0,
 337                 .end    = MV64x60_IRQ_ETH_0,
 338                 .flags  = IORESOURCE_IRQ,
 339         },
 340 };
 341
 342 static struct mv643xx_eth_platform_data eth0_pd = {
 343         .port_number    = 0,
 344 };
 345
 346 static struct platform_device eth0_device = {
 347         .name           = MV643XX_ETH_NAME,
 348         .id             = 0,
 349         .num_resources  = ARRAY_SIZE(mv64x60_eth0_resources),
 350         .resource       = mv64x60_eth0_resources,
 351         .dev = {
 352                 .platform_data = &eth0_pd,
 353         },
 354 };
 355 #endif
 356
 357 #ifdef CONFIG_MV643XX_ETH_1
 358 static struct resource mv64x60_eth1_resources[] = {
 359         [0] = {
 360                 .name   = "eth1 irq",
 361                 .start  = MV64x60_IRQ_ETH_1,
 362                 .end    = MV64x60_IRQ_ETH_1,
 363                 .flags  = IORESOURCE_IRQ,
 364         },
 365 };
 366
 367 static struct mv643xx_eth_platform_data eth1_pd = {
 368         .port_number    = 1,
 369 };
 370
 371 static struct platform_device eth1_device = {
 372         .name           = MV643XX_ETH_NAME,
 373         .id             = 1,
 374         .num_resources  = ARRAY_SIZE(mv64x60_eth1_resources),
 375         .resource       = mv64x60_eth1_resources,
 376         .dev = {
 377                 .platform_data = &eth1_pd,
 378         },
 379 };
 380 #endif
 381
 382 #ifdef CONFIG_MV643XX_ETH_2
 383 static struct resource mv64x60_eth2_resources[] = {
 384         [0] = {
 385                 .name   = "eth2 irq",
 386                 .start  = MV64x60_IRQ_ETH_2,
 387                 .end    = MV64x60_IRQ_ETH_2,
 388                 .flags  = IORESOURCE_IRQ,
 389         },
 390 };
 391
 392 static struct mv643xx_eth_platform_data eth2_pd = {
 393         .port_number    = 2,
 394 };
 395
 396 static struct platform_device eth2_device = {
 397         .name           = MV643XX_ETH_NAME,
 398         .id             = 2,
 399         .num_resources  = ARRAY_SIZE(mv64x60_eth2_resources),
 400         .resource       = mv64x60_eth2_resources,
 401         .dev = {
 402                 .platform_data = &eth2_pd,
 403         },
 404 };
 405 #endif
 406 #endif
 407
 408 #ifdef  CONFIG_I2C_MV64XXX
 409 static struct mv64xxx_i2c_pdata mv64xxx_i2c_pdata = {
 410         .freq_m                 = 8,
 411         .freq_n                 = 3,
 412         .timeout                = 1000, /* Default timeout of 1 second */
 413         .retries                = 1,
 414 };
 415
 416 static struct resource mv64xxx_i2c_resources[] = {
 417         /* Do not change the order of the IORESOURCE_MEM resources */
 418         [0] = {
 419                 .name   = "mv64xxx i2c base",
 420                 .start  = MV64XXX_I2C_OFFSET,
 421                 .end    = MV64XXX_I2C_OFFSET + MV64XXX_I2C_REG_BLOCK_SIZE - 1,
 422                 .flags  = IORESOURCE_MEM,
 423         },
 424         [1] = {
 425                 .name   = "mv64xxx i2c irq",
 426                 .start  = MV64x60_IRQ_I2C,
 427                 .end    = MV64x60_IRQ_I2C,
 428                 .flags  = IORESOURCE_IRQ,
 429         },
 430 };
 431
 432 static struct platform_device i2c_device = {
 433         .name           = MV64XXX_I2C_CTLR_NAME,
 434         .id             = 0,
 435         .num_resources  = ARRAY_SIZE(mv64xxx_i2c_resources),
 436         .resource       = mv64xxx_i2c_resources,
 437         .dev = {
 438                 .platform_data = &mv64xxx_i2c_pdata,
 439         },
 440 };
 441 #endif
 442
 443 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
 444 static struct mv64xxx_pdata mv64xxx_pdata = {
 445         .hs_reg_valid   = 0,
 446 };
 447
 448 static struct platform_device mv64xxx_device = { /* general mv64x60 stuff */
 449         .name   = MV64XXX_DEV_NAME,
 450         .id     = 0,
 451         .dev = {
 452                 .platform_data = &mv64xxx_pdata,
 453         },
 454 };
 455 #endif
 456
 457 static struct platform_device *mv64x60_pd_devs[] __initdata = {
 458 #ifdef CONFIG_SERIAL_MPSC
 459         &mpsc_shared_device,
 460         &mpsc0_device,
 461         &mpsc1_device,
 462 #endif
 463 #if defined(CONFIG_MV643XX_ETH) || defined(CONFIG_MV643XX_ETH_MODULE)
 464         &mv64x60_eth_shared_device,
 465 #endif
 466 #ifdef CONFIG_MV643XX_ETH_0
 467         &eth0_device,
 468 #endif
 469 #ifdef CONFIG_MV643XX_ETH_1
 470         &eth1_device,
 471 #endif
 472 #ifdef CONFIG_MV643XX_ETH_2
 473         &eth2_device,
 474 #endif
 475 #ifdef  CONFIG_I2C_MV64XXX
 476         &i2c_device,
 477 #endif
 478 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
 479         &mv64xxx_device,
 480 #endif
 481 };
 482
 483 /*
 484  *****************************************************************************
 485  *
 486  *      Bridge Initialization Routines
 487  *
 488  *****************************************************************************
 489  */
 490 /*
 491  * mv64x60_init()
 492  *
 493  * Initialize the bridge based on setting passed in via 'si'.  The bridge
 494  * handle, 'bh', will be set so that it can be used to make subsequent
 495  * calls to routines in this file.
 496  */
 497 int __init
 498 mv64x60_init(struct mv64x60_handle *bh, struct mv64x60_setup_info *si)
 499 {
 500         u32     mem_windows[MV64x60_CPU2MEM_WINDOWS][2];
 501
 502         if (ppc_md.progress)
 503                 ppc_md.progress("mv64x60 initialization", 0x0);
 504
 505         spin_lock_init(&mv64x60_lock);
 506         mv64x60_early_init(bh, si);
 507
 508         if (mv64x60_get_type(bh) || mv64x60_setup_for_chip(bh)) {
 509                 iounmap(bh->v_base);
 510                 bh->v_base = 0;
 511                 if (ppc_md.progress)
 512                         ppc_md.progress("mv64x60_init: Can't determine chip",0);
 513                 return -1;
 514         }
 515
 516         bh->ci->disable_all_windows(bh, si);
 517         mv64x60_get_mem_windows(bh, mem_windows);
 518         mv64x60_config_cpu2mem_windows(bh, si, mem_windows);
 519
 520         if (bh->ci->config_io2mem_windows)
 521                 bh->ci->config_io2mem_windows(bh, si, mem_windows);
 522         if (bh->ci->set_mpsc2regs_window)
 523                 bh->ci->set_mpsc2regs_window(bh, si->phys_reg_base);
 524
 525         if (si->pci_1.enable_bus) {
 526                 bh->io_base_b = (u32)ioremap(si->pci_1.pci_io.cpu_base,
 527                         si->pci_1.pci_io.size);
 528                 isa_io_base = bh->io_base_b;
 529         }
 530
 531         if (si->pci_0.enable_bus) {
 532                 bh->io_base_a = (u32)ioremap(si->pci_0.pci_io.cpu_base,
 533                         si->pci_0.pci_io.size);
 534                 isa_io_base = bh->io_base_a;
 535
 536                 mv64x60_alloc_hose(bh, MV64x60_PCI0_CONFIG_ADDR,
 537                         MV64x60_PCI0_CONFIG_DATA, &bh->hose_a);
 538                 mv64x60_config_resources(bh->hose_a, &si->pci_0, bh->io_base_a);
 539                 mv64x60_config_pci_params(bh->hose_a, &si->pci_0);
 540
 541                 mv64x60_config_cpu2pci_windows(bh, &si->pci_0, 0);
 542                 mv64x60_config_pci2mem_windows(bh, bh->hose_a, &si->pci_0, 0,
 543                         mem_windows);
 544                 bh->ci->set_pci2regs_window(bh, bh->hose_a, 0,
 545                         si->phys_reg_base);
 546         }
 547
 548         if (si->pci_1.enable_bus) {
 549                 mv64x60_alloc_hose(bh, MV64x60_PCI1_CONFIG_ADDR,
 550                         MV64x60_PCI1_CONFIG_DATA, &bh->hose_b);
 551                 mv64x60_config_resources(bh->hose_b, &si->pci_1, bh->io_base_b);
 552                 mv64x60_config_pci_params(bh->hose_b, &si->pci_1);
 553
 554                 mv64x60_config_cpu2pci_windows(bh, &si->pci_1, 1);
 555                 mv64x60_config_pci2mem_windows(bh, bh->hose_b, &si->pci_1, 1,
 556                         mem_windows);
 557                 bh->ci->set_pci2regs_window(bh, bh->hose_b, 1,
 558                         si->phys_reg_base);
 559         }
 560
 561         bh->ci->chip_specific_init(bh, si);
 562         mv64x60_pd_fixup(bh, mv64x60_pd_devs, ARRAY_SIZE(mv64x60_pd_devs));
 563
 564         return 0;
 565 }
 566
 567 /*
 568  * mv64x60_early_init()
 569  *
 570  * Do some bridge work that must take place before we start messing with
 571  * the bridge for real.
 572  */
 573 void __init
 574 mv64x60_early_init(struct mv64x60_handle *bh, struct mv64x60_setup_info *si)
 575 {
 576         struct pci_controller   hose_a, hose_b;
 577
 578         memset(bh, 0, sizeof(*bh));
 579
 580         bh->p_base = si->phys_reg_base;
 581         bh->v_base = ioremap(bh->p_base, MV64x60_INTERNAL_SPACE_SIZE);
 582
 583         mv64x60_bridge_pbase = bh->p_base;
 584         mv64x60_bridge_vbase = bh->v_base;
 585
 586         /* Assuming pci mode [reserved] bits 4:5 on 64260 are 0 */
 587         bh->pci_mode_a = mv64x60_read(bh, MV64x60_PCI0_MODE) &
 588                 MV64x60_PCIMODE_MASK;
 589         bh->pci_mode_b = mv64x60_read(bh, MV64x60_PCI1_MODE) &
 590                 MV64x60_PCIMODE_MASK;
 591
 592         /* Need temporary hose structs to call mv64x60_set_bus() */
 593         memset(&hose_a, 0, sizeof(hose_a));
 594         memset(&hose_b, 0, sizeof(hose_b));
 595         setup_indirect_pci_nomap(&hose_a, bh->v_base + MV64x60_PCI0_CONFIG_ADDR,
 596                 bh->v_base + MV64x60_PCI0_CONFIG_DATA);
 597         setup_indirect_pci_nomap(&hose_b, bh->v_base + MV64x60_PCI1_CONFIG_ADDR,
 598                 bh->v_base + MV64x60_PCI1_CONFIG_DATA);
 599         bh->hose_a = &hose_a;
 600         bh->hose_b = &hose_b;
 601
 602 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
 603         /* Save a copy of hose_a for sysfs functions -- hack */
 604         memcpy(&sysfs_hose_a, &hose_a, sizeof(hose_a));
 605 #endif
 606
 607         mv64x60_set_bus(bh, 0, 0);
 608         mv64x60_set_bus(bh, 1, 0);
 609
 610         bh->hose_a = NULL;
 611         bh->hose_b = NULL;
 612
 613         /* Clear bit 0 of PCI addr decode control so PCI->CPU remap 1:1 */
 614         mv64x60_clr_bits(bh, MV64x60_PCI0_PCI_DECODE_CNTL, 0x00000001);
 615         mv64x60_clr_bits(bh, MV64x60_PCI1_PCI_DECODE_CNTL, 0x00000001);
 616
 617         /* Bit 12 MUST be 0; set bit 27--don't auto-update cpu remap regs */
 618         mv64x60_clr_bits(bh, MV64x60_CPU_CONFIG, (1<<12));
 619         mv64x60_set_bits(bh, MV64x60_CPU_CONFIG, (1<<27));
 620
 621         mv64x60_set_bits(bh, MV64x60_PCI0_TO_RETRY, 0xffff);
 622         mv64x60_set_bits(bh, MV64x60_PCI1_TO_RETRY, 0xffff);
 623 }
 624
 625 /*
 626  *****************************************************************************
 627  *
 628  *      Window Config Routines
 629  *
 630  *****************************************************************************
 631  */
 632 /*
 633  * mv64x60_get_32bit_window()
 634  *
 635  * Determine the base address and size of a 32-bit window on the bridge.
 636  */
 637 void __init
 638 mv64x60_get_32bit_window(struct mv64x60_handle *bh, u32 window,
 639         u32 *base, u32 *size)
 640 {
 641         u32     val, base_reg, size_reg, base_bits, size_bits;
 642         u32     (*get_from_field)(u32 val, u32 num_bits);
 643
 644         base_reg = bh->ci->window_tab_32bit[window].base_reg;
 645
 646         if (base_reg != 0) {
 647                 size_reg  = bh->ci->window_tab_32bit[window].size_reg;
 648                 base_bits = bh->ci->window_tab_32bit[window].base_bits;
 649                 size_bits = bh->ci->window_tab_32bit[window].size_bits;
 650                 get_from_field= bh->ci->window_tab_32bit[window].get_from_field;
 651
 652                 val = mv64x60_read(bh, base_reg);
 653                 *base = get_from_field(val, base_bits);
 654
 655                 if (size_reg != 0) {
 656                         val = mv64x60_read(bh, size_reg);
 657                         val = get_from_field(val, size_bits);
 658                         *size = bh->ci->untranslate_size(*base, val, size_bits);
 659                 } else
 660                         *size = 0;
 661         } else {
 662                 *base = 0;
 663                 *size = 0;
 664         }
 665
 666         pr_debug("get 32bit window: %d, base: 0x%x, size: 0x%x\n",
 667                 window, *base, *size);
 668 }
 669
 670 /*
 671  * mv64x60_set_32bit_window()
 672  *
 673  * Set the base address and size of a 32-bit window on the bridge.
 674  */
 675 void __init
 676 mv64x60_set_32bit_window(struct mv64x60_handle *bh, u32 window,
 677         u32 base, u32 size, u32 other_bits)
 678 {
 679         u32     val, base_reg, size_reg, base_bits, size_bits;
 680         u32     (*map_to_field)(u32 val, u32 num_bits);
 681
 682         pr_debug("set 32bit window: %d, base: 0x%x, size: 0x%x, other: 0x%x\n",
 683                 window, base, size, other_bits);
 684
 685         base_reg = bh->ci->window_tab_32bit[window].base_reg;
 686
 687         if (base_reg != 0) {
 688                 size_reg  = bh->ci->window_tab_32bit[window].size_reg;
 689                 base_bits = bh->ci->window_tab_32bit[window].base_bits;
 690                 size_bits = bh->ci->window_tab_32bit[window].size_bits;
 691                 map_to_field = bh->ci->window_tab_32bit[window].map_to_field;
 692
 693                 val = map_to_field(base, base_bits) | other_bits;
 694                 mv64x60_write(bh, base_reg, val);
 695
 696                 if (size_reg != 0) {
 697                         val = bh->ci->translate_size(base, size, size_bits);
 698                         val = map_to_field(val, size_bits);
 699                         mv64x60_write(bh, size_reg, val);
 700                 }
 701
 702                 (void)mv64x60_read(bh, base_reg); /* Flush FIFO */
 703         }
 704 }
 705
 706 /*
 707  * mv64x60_get_64bit_window()
 708  *
 709  * Determine the base address and size of a 64-bit window on the bridge.
 710  */
 711 void __init
 712 mv64x60_get_64bit_window(struct mv64x60_handle *bh, u32 window,
 713         u32 *base_hi, u32 *base_lo, u32 *size)
 714 {
 715         u32     val, base_lo_reg, size_reg, base_lo_bits, size_bits;
 716         u32     (*get_from_field)(u32 val, u32 num_bits);
 717
 718         base_lo_reg = bh->ci->window_tab_64bit[window].base_lo_reg;
 719
 720         if (base_lo_reg != 0) {
 721                 size_reg = bh->ci->window_tab_64bit[window].size_reg;
 722                 base_lo_bits = bh->ci->window_tab_64bit[window].base_lo_bits;
 723                 size_bits = bh->ci->window_tab_64bit[window].size_bits;
 724                 get_from_field= bh->ci->window_tab_64bit[window].get_from_field;
 725
 726                 *base_hi = mv64x60_read(bh,
 727                         bh->ci->window_tab_64bit[window].base_hi_reg);
 728
 729                 val = mv64x60_read(bh, base_lo_reg);
 730                 *base_lo = get_from_field(val, base_lo_bits);
 731
 732                 if (size_reg != 0) {
 733                         val = mv64x60_read(bh, size_reg);
 734                         val = get_from_field(val, size_bits);
 735                         *size = bh->ci->untranslate_size(*base_lo, val,
 736                                                                 size_bits);
 737                 } else
 738                         *size = 0;
 739         } else {
 740                 *base_hi = 0;
 741                 *base_lo = 0;
 742                 *size = 0;
 743         }
 744
 745         pr_debug("get 64bit window: %d, base hi: 0x%x, base lo: 0x%x, "
 746                 "size: 0x%x\n", window, *base_hi, *base_lo, *size);
 747 }
 748
 749 /*
 750  * mv64x60_set_64bit_window()
 751  *
 752  * Set the base address and size of a 64-bit window on the bridge.
 753  */
 754 void __init
 755 mv64x60_set_64bit_window(struct mv64x60_handle *bh, u32 window,
 756         u32 base_hi, u32 base_lo, u32 size, u32 other_bits)
 757 {
 758         u32     val, base_lo_reg, size_reg, base_lo_bits, size_bits;
 759         u32     (*map_to_field)(u32 val, u32 num_bits);
 760
 761         pr_debug("set 64bit window: %d, base hi: 0x%x, base lo: 0x%x, "
 762                 "size: 0x%x, other: 0x%x\n",
 763                 window, base_hi, base_lo, size, other_bits);
 764
 765         base_lo_reg = bh->ci->window_tab_64bit[window].base_lo_reg;
 766
 767         if (base_lo_reg != 0) {
 768                 size_reg = bh->ci->window_tab_64bit[window].size_reg;
 769                 base_lo_bits = bh->ci->window_tab_64bit[window].base_lo_bits;
 770                 size_bits = bh->ci->window_tab_64bit[window].size_bits;
 771                 map_to_field = bh->ci->window_tab_64bit[window].map_to_field;
 772
 773                 mv64x60_write(bh, bh->ci->window_tab_64bit[window].base_hi_reg,
 774                         base_hi);
 775
 776                 val = map_to_field(base_lo, base_lo_bits) | other_bits;
 777                 mv64x60_write(bh, base_lo_reg, val);
 778
 779                 if (size_reg != 0) {
 780                         val = bh->ci->translate_size(base_lo, size, size_bits);
 781                         val = map_to_field(val, size_bits);
 782                         mv64x60_write(bh, size_reg, val);
 783                 }
 784
 785                 (void)mv64x60_read(bh, base_lo_reg); /* Flush FIFO */
 786         }
 787 }
 788
 789 /*
 790  * mv64x60_mask()
 791  *
 792  * Take the high-order 'num_bits' of 'val' & mask off low bits.
 793  */
 794 u32 __init
 795 mv64x60_mask(u32 val, u32 num_bits)
 796 {
 797         return val & (0xffffffff << (32 - num_bits));
 798 }
 799
 800 /*
 801  * mv64x60_shift_left()
 802  *
 803  * Take the low-order 'num_bits' of 'val', shift left to align at bit 31 (MSB).
 804  */
 805 u32 __init
 806 mv64x60_shift_left(u32 val, u32 num_bits)
 807 {
 808         return val << (32 - num_bits);
 809 }
 810
 811 /*
 812  * mv64x60_shift_right()
 813  *
 814  * Take the high-order 'num_bits' of 'val', shift right to align at bit 0 (LSB).
 815  */
 816 u32 __init
 817 mv64x60_shift_right(u32 val, u32 num_bits)
 818 {
 819         return val >> (32 - num_bits);
 820 }
 821
 822 /*
 823  *****************************************************************************
 824  *
 825  *      Chip Identification Routines
 826  *
 827  *****************************************************************************
 828  */
 829 /*
 830  * mv64x60_get_type()
 831  *
 832  * Determine the type of bridge chip we have.
 833  */
 834 int __init
 835 mv64x60_get_type(struct mv64x60_handle *bh)
 836 {
 837         struct pci_controller hose;
 838         u16     val;
 839         u8      save_exclude;
 840
 841         memset(&hose, 0, sizeof(hose));
 842         setup_indirect_pci_nomap(&hose, bh->v_base + MV64x60_PCI0_CONFIG_ADDR,
 843                 bh->v_base + MV64x60_PCI0_CONFIG_DATA);
 844
 845         save_exclude = mv64x60_pci_exclude_bridge;
 846         mv64x60_pci_exclude_bridge = 0;
 847         /* Sanity check of bridge's Vendor ID */
 848         early_read_config_word(&hose, 0, PCI_DEVFN(0, 0), PCI_VENDOR_ID, &val);
 849
 850         if (val != PCI_VENDOR_ID_MARVELL) {
 851                 mv64x60_pci_exclude_bridge = save_exclude;
 852                 return -1;
 853         }
 854
 855         /* Get the revision of the chip */
 856         early_read_config_word(&hose, 0, PCI_DEVFN(0, 0), PCI_CLASS_REVISION,
 857                 &val);
 858         bh->rev = (u32)(val & 0xff);
 859
 860         /* Figure out the type of Marvell bridge it is */
 861         early_read_config_word(&hose, 0, PCI_DEVFN(0, 0), PCI_DEVICE_ID, &val);
 862         mv64x60_pci_exclude_bridge = save_exclude;
 863
 864         switch (val) {
 865         case PCI_DEVICE_ID_MARVELL_GT64260:
 866                 switch (bh->rev) {
 867                 case GT64260_REV_A:
 868                         bh->type = MV64x60_TYPE_GT64260A;
 869                         break;
 870
 871                 default:
 872                         printk(KERN_WARNING "Unsupported GT64260 rev %04x\n",
 873                                 bh->rev);
 874                         /* Assume its similar to a 'B' rev and fallthru */
 875                 case GT64260_REV_B:
 876                         bh->type = MV64x60_TYPE_GT64260B;
 877                         break;
 878                 }
 879                 break;
 880
 881         case PCI_DEVICE_ID_MARVELL_MV64360:
 882                 /* Marvell won't tell me how to distinguish a 64361 & 64362 */
 883                 bh->type = MV64x60_TYPE_MV64360;
 884                 break;
 885
 886         case PCI_DEVICE_ID_MARVELL_MV64460:
 887                 bh->type = MV64x60_TYPE_MV64460;
 888                 break;
 889
 890         default:
 891                 printk(KERN_ERR "Unknown Marvell bridge type %04x\n", val);
 892                 return -1;
 893         }
 894
 895         /* Hang onto bridge type & rev for PIC code */
 896         mv64x60_bridge_type = bh->type;
 897         mv64x60_bridge_rev = bh->rev;
 898
 899         return 0;
 900 }
 901
 902 /*
 903  * mv64x60_setup_for_chip()
 904  *
 905  * Set 'bh' to use the proper set of routine for the bridge chip that we have.
 906  */
 907 int __init
 908 mv64x60_setup_for_chip(struct mv64x60_handle *bh)
 909 {
 910         int     rc = 0;
 911
 912         /* Set up chip-specific info based on the chip/bridge type */
 913         switch(bh->type) {
 914         case MV64x60_TYPE_GT64260A:
 915                 bh->ci = &gt64260a_ci;
 916                 break;
 917
 918         case MV64x60_TYPE_GT64260B:
 919                 bh->ci = &gt64260b_ci;
 920                 break;
 921
 922         case MV64x60_TYPE_MV64360:
 923                 bh->ci = &mv64360_ci;
 924                 break;
 925
 926         case MV64x60_TYPE_MV64460:
 927                 bh->ci = &mv64460_ci;
 928                 break;
 929
 930         case MV64x60_TYPE_INVALID:
 931         default:
 932                 if (ppc_md.progress)
 933                         ppc_md.progress("mv64x60: Unsupported bridge", 0x0);
 934                 printk(KERN_ERR "mv64x60: Unsupported bridge\n");
 935                 rc = -1;
 936         }
 937
 938         return rc;
 939 }
 940
 941 /*
 942  * mv64x60_get_bridge_vbase()
 943  *
 944  * Return the virtual address of the bridge's registers.
 945  */
 946 void __iomem *
 947 mv64x60_get_bridge_vbase(void)
 948 {
 949         return mv64x60_bridge_vbase;
 950 }
 951
 952 /*
 953  * mv64x60_get_bridge_type()
 954  *
 955  * Return the type of bridge on the platform.
 956  */
 957 u32
 958 mv64x60_get_bridge_type(void)
 959 {
 960         return mv64x60_bridge_type;
 961 }
 962
 963 /*
 964  * mv64x60_get_bridge_rev()
 965  *
 966  * Return the revision of the bridge on the platform.
 967  */
 968 u32
 969 mv64x60_get_bridge_rev(void)
 970 {
 971         return mv64x60_bridge_rev;
 972 }
 973
 974 /*
 975  *****************************************************************************
 976  *
 977  *      System Memory Window Related Routines
 978  *
 979  *****************************************************************************
 980  */
 981 /*
 982  * mv64x60_get_mem_size()
 983  *
 984  * Calculate the amount of memory that the memory controller is set up for.
 985  * This should only be used by board-specific code if there is no other
 986  * way to determine the amount of memory in the system.
 987  */
 988 u32 __init
 989 mv64x60_get_mem_size(u32 bridge_base, u32 chip_type)
 990 {
 991         struct mv64x60_handle   bh;
 992         u32     mem_windows[MV64x60_CPU2MEM_WINDOWS][2];
 993         u32     rc = 0;
 994
 995         memset(&bh, 0, sizeof(bh));
 996
 997         bh.type = chip_type;
 998         bh.v_base = (void *)bridge_base;
 999
1000         if (!mv64x60_setup_for_chip(&bh)) {
1001                 mv64x60_get_mem_windows(&bh, mem_windows);
1002                 rc = mv64x60_calc_mem_size(&bh, mem_windows);
1003         }
1004
1005         return rc;
1006 }
1007
1008 /*
1009  * mv64x60_get_mem_windows()
1010  *
1011  * Get the values in the memory controller & return in the 'mem_windows' array.
1012  */
1013 void __init
1014 mv64x60_get_mem_windows(struct mv64x60_handle *bh,
1015         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
1016 {
1017         u32     i, win;
1018
1019         for (win=MV64x60_CPU2MEM_0_WIN,i=0;win<=MV64x60_CPU2MEM_3_WIN;win++,i++)
1020                 if (bh->ci->is_enabled_32bit(bh, win))
1021                         mv64x60_get_32bit_window(bh, win,
1022                                 &mem_windows[i][0], &mem_windows[i][1]);
1023                 else {
1024                         mem_windows[i][0] = 0;
1025                         mem_windows[i][1] = 0;
1026                 }
1027 }
1028
1029 /*
1030  * mv64x60_calc_mem_size()
1031  *
1032  * Using the memory controller register values in 'mem_windows', determine
1033  * how much memory it is set up for.
1034  */
1035 u32 __init
1036 mv64x60_calc_mem_size(struct mv64x60_handle *bh,
1037         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
1038 {
1039         u32     i, total = 0;
1040
1041         for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++)
1042                 total += mem_windows[i][1];
1043
1044         return total;
1045 }
1046
1047 /*
1048  *****************************************************************************
1049  *
1050  *      CPU->System MEM, PCI Config Routines
1051  *
1052  *****************************************************************************
1053  */
1054 /*
1055  * mv64x60_config_cpu2mem_windows()
1056  *
1057  * Configure CPU->Memory windows on the bridge.
1058  */
1059 static u32 prot_tab[] __initdata = {
1060         MV64x60_CPU_PROT_0_WIN, MV64x60_CPU_PROT_1_WIN,
1061         MV64x60_CPU_PROT_2_WIN, MV64x60_CPU_PROT_3_WIN
1062 };
1063
1064 static u32 cpu_snoop_tab[] __initdata = {
1065         MV64x60_CPU_SNOOP_0_WIN, MV64x60_CPU_SNOOP_1_WIN,
1066         MV64x60_CPU_SNOOP_2_WIN, MV64x60_CPU_SNOOP_3_WIN
1067 };
1068
1069 void __init
1070 mv64x60_config_cpu2mem_windows(struct mv64x60_handle *bh,
1071         struct mv64x60_setup_info *si,
1072         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
1073 {
1074         u32     i, win;
1075
1076         /* Set CPU protection & snoop windows */
1077         for (win=MV64x60_CPU2MEM_0_WIN,i=0;win<=MV64x60_CPU2MEM_3_WIN;win++,i++)
1078                 if (bh->ci->is_enabled_32bit(bh, win)) {
1079                         mv64x60_set_32bit_window(bh, prot_tab[i],
1080                                 mem_windows[i][0], mem_windows[i][1],
1081                                 si->cpu_prot_options[i]);
1082                         bh->ci->enable_window_32bit(bh, prot_tab[i]);
1083
1084                         if (bh->ci->window_tab_32bit[cpu_snoop_tab[i]].
1085                                                                 base_reg != 0) {
1086                                 mv64x60_set_32bit_window(bh, cpu_snoop_tab[i],
1087                                         mem_windows[i][0], mem_windows[i][1],
1088                                         si->cpu_snoop_options[i]);
1089                                 bh->ci->enable_window_32bit(bh,
1090                                         cpu_snoop_tab[i]);
1091                         }
1092
1093                 }
1094 }
1095
1096 /*
1097  * mv64x60_config_cpu2pci_windows()
1098  *
1099  * Configure the CPU->PCI windows for one of the PCI buses.
1100  */
1101 static u32 win_tab[2][4] __initdata = {
1102         { MV64x60_CPU2PCI0_IO_WIN, MV64x60_CPU2PCI0_MEM_0_WIN,
1103           MV64x60_CPU2PCI0_MEM_1_WIN, MV64x60_CPU2PCI0_MEM_2_WIN },
1104         { MV64x60_CPU2PCI1_IO_WIN, MV64x60_CPU2PCI1_MEM_0_WIN,
1105           MV64x60_CPU2PCI1_MEM_1_WIN, MV64x60_CPU2PCI1_MEM_2_WIN },
1106 };
1107
1108 static u32 remap_tab[2][4] __initdata = {
1109         { MV64x60_CPU2PCI0_IO_REMAP_WIN, MV64x60_CPU2PCI0_MEM_0_REMAP_WIN,
1110           MV64x60_CPU2PCI0_MEM_1_REMAP_WIN, MV64x60_CPU2PCI0_MEM_2_REMAP_WIN },
1111         { MV64x60_CPU2PCI1_IO_REMAP_WIN, MV64x60_CPU2PCI1_MEM_0_REMAP_WIN,
1112           MV64x60_CPU2PCI1_MEM_1_REMAP_WIN, MV64x60_CPU2PCI1_MEM_2_REMAP_WIN }
1113 };
1114
1115 void __init
1116 mv64x60_config_cpu2pci_windows(struct mv64x60_handle *bh,
1117         struct mv64x60_pci_info *pi, u32 bus)
1118 {
1119         int     i;
1120
1121         if (pi->pci_io.size > 0) {
1122                 mv64x60_set_32bit_window(bh, win_tab[bus][0],
1123                         pi->pci_io.cpu_base, pi->pci_io.size, pi->pci_io.swap);
1124                 mv64x60_set_32bit_window(bh, remap_tab[bus][0],
1125                         pi->pci_io.pci_base_lo, 0, 0);
1126                 bh->ci->enable_window_32bit(bh, win_tab[bus][0]);
1127         } else /* Actually, the window should already be disabled */
1128                 bh->ci->disable_window_32bit(bh, win_tab[bus][0]);
1129
1130         for (i=0; i<3; i++)
1131                 if (pi->pci_mem[i].size > 0) {
1132                         mv64x60_set_32bit_window(bh, win_tab[bus][i+1],
1133                                 pi->pci_mem[i].cpu_base, pi->pci_mem[i].size,
1134                                 pi->pci_mem[i].swap);
1135                         mv64x60_set_64bit_window(bh, remap_tab[bus][i+1],
1136                                 pi->pci_mem[i].pci_base_hi,
1137                                 pi->pci_mem[i].pci_base_lo, 0, 0);
1138                         bh->ci->enable_window_32bit(bh, win_tab[bus][i+1]);
1139                 } else /* Actually, the window should already be disabled */
1140                         bh->ci->disable_window_32bit(bh, win_tab[bus][i+1]);
1141 }
1142
1143 /*
1144  *****************************************************************************
1145  *
1146  *      PCI->System MEM Config Routines
1147  *
1148  *****************************************************************************
1149  */
1150 /*
1151  * mv64x60_config_pci2mem_windows()
1152  *
1153  * Configure the PCI->Memory windows on the bridge.
1154  */
1155 static u32 pci_acc_tab[2][4] __initdata = {
1156         { MV64x60_PCI02MEM_ACC_CNTL_0_WIN, MV64x60_PCI02MEM_ACC_CNTL_1_WIN,
1157           MV64x60_PCI02MEM_ACC_CNTL_2_WIN, MV64x60_PCI02MEM_ACC_CNTL_3_WIN },
1158         { MV64x60_PCI12MEM_ACC_CNTL_0_WIN, MV64x60_PCI12MEM_ACC_CNTL_1_WIN,
1159           MV64x60_PCI12MEM_ACC_CNTL_2_WIN, MV64x60_PCI12MEM_ACC_CNTL_3_WIN }
1160 };
1161
1162 static u32 pci_snoop_tab[2][4] __initdata = {
1163         { MV64x60_PCI02MEM_SNOOP_0_WIN, MV64x60_PCI02MEM_SNOOP_1_WIN,
1164           MV64x60_PCI02MEM_SNOOP_2_WIN, MV64x60_PCI02MEM_SNOOP_3_WIN },
1165         { MV64x60_PCI12MEM_SNOOP_0_WIN, MV64x60_PCI12MEM_SNOOP_1_WIN,
1166           MV64x60_PCI12MEM_SNOOP_2_WIN, MV64x60_PCI12MEM_SNOOP_3_WIN }
1167 };
1168
1169 static u32 pci_size_tab[2][4] __initdata = {
1170         { MV64x60_PCI0_MEM_0_SIZE, MV64x60_PCI0_MEM_1_SIZE,
1171           MV64x60_PCI0_MEM_2_SIZE, MV64x60_PCI0_MEM_3_SIZE },
1172         { MV64x60_PCI1_MEM_0_SIZE, MV64x60_PCI1_MEM_1_SIZE,
1173           MV64x60_PCI1_MEM_2_SIZE, MV64x60_PCI1_MEM_3_SIZE }
1174 };
1175
1176 void __init
1177 mv64x60_config_pci2mem_windows(struct mv64x60_handle *bh,
1178         struct pci_controller *hose, struct mv64x60_pci_info *pi,
1179         u32 bus, u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
1180 {
1181         u32     i, win;
1182
1183         /*
1184          * Set the access control, snoop, BAR size, and window base addresses.
1185          * PCI->MEM windows base addresses will match exactly what the
1186          * CPU->MEM windows are.
1187          */
1188         for (win=MV64x60_CPU2MEM_0_WIN,i=0;win<=MV64x60_CPU2MEM_3_WIN;win++,i++)
1189                 if (bh->ci->is_enabled_32bit(bh, win)) {
1190                         mv64x60_set_64bit_window(bh,
1191                                 pci_acc_tab[bus][i], 0,
1192                                 mem_windows[i][0], mem_windows[i][1],
1193                                 pi->acc_cntl_options[i]);
1194                         bh->ci->enable_window_64bit(bh, pci_acc_tab[bus][i]);
1195
1196                         if (bh->ci->window_tab_64bit[
1197                                 pci_snoop_tab[bus][i]].base_lo_reg != 0) {
1198
1199                                 mv64x60_set_64bit_window(bh,
1200                                         pci_snoop_tab[bus][i], 0,
1201                                         mem_windows[i][0], mem_windows[i][1],
1202                                         pi->snoop_options[i]);
1203                                 bh->ci->enable_window_64bit(bh,
1204                                         pci_snoop_tab[bus][i]);
1205                         }
1206
1207                         bh->ci->set_pci2mem_window(hose, bus, i,
1208                                 mem_windows[i][0]);
1209                         mv64x60_write(bh, pci_size_tab[bus][i],
1210                                 mv64x60_mask(mem_windows[i][1] - 1, 20));
1211
1212                         /* Enable the window */
1213                         mv64x60_clr_bits(bh, ((bus == 0) ?
1214                                 MV64x60_PCI0_BAR_ENABLE :
1215                                 MV64x60_PCI1_BAR_ENABLE), (1 << i));
1216                 }
1217 }
1218
1219 /*
1220  *****************************************************************************
1221  *
1222  *      Hose & Resource Alloc/Init Routines
1223  *
1224  *****************************************************************************
1225  */
1226 /*
1227  * mv64x60_alloc_hoses()
1228  *
1229  * Allocate the PCI hose structures for the bridge's PCI buses.
1230  */
1231 void __init
1232 mv64x60_alloc_hose(struct mv64x60_handle *bh, u32 cfg_addr, u32 cfg_data,
1233         struct pci_controller **hose)
1234 {
1235         *hose = pcibios_alloc_controller();
1236         setup_indirect_pci_nomap(*hose, bh->v_base + cfg_addr,
1237                 bh->v_base + cfg_data);
1238 }
1239
1240 /*
1241  * mv64x60_config_resources()
1242  *
1243  * Calculate the offsets, etc. for the hose structures to reflect all of
1244  * the address remapping that happens as you go from CPU->PCI and PCI->MEM.
1245  */
1246 void __init
1247 mv64x60_config_resources(struct pci_controller *hose,
1248         struct mv64x60_pci_info *pi, u32 io_base)
1249 {
1250         int             i;
1251         /* 2 hoses; 4 resources/hose; string <= 64 bytes */
1252         static char     s[2][4][64];
1253
1254         if (pi->pci_io.size != 0) {
1255                 sprintf(s[hose->index][0], "PCI hose %d I/O Space",
1256                         hose->index);
1257                 pci_init_resource(&hose->io_resource, io_base - isa_io_base,
1258                         io_base - isa_io_base + pi->pci_io.size - 1,
1259                         IORESOURCE_IO, s[hose->index][0]);
1260                 hose->io_space.start = pi->pci_io.pci_base_lo;
1261                 hose->io_space.end = pi->pci_io.pci_base_lo + pi->pci_io.size-1;
1262                 hose->io_base_phys = pi->pci_io.cpu_base;
1263                 hose->io_base_virt = (void *)isa_io_base;
1264         }
1265
1266         for (i=0; i<3; i++)
1267                 if (pi->pci_mem[i].size != 0) {
1268                         sprintf(s[hose->index][i+1], "PCI hose %d MEM Space %d",
1269                                 hose->index, i);
1270                         pci_init_resource(&hose->mem_resources[i],
1271                                 pi->pci_mem[i].cpu_base,
1272                                 pi->pci_mem[i].cpu_base + pi->pci_mem[i].size-1,
1273                                 IORESOURCE_MEM, s[hose->index][i+1]);
1274                 }
1275
1276         hose->mem_space.end = pi->pci_mem[0].pci_base_lo +
1277                                                 pi->pci_mem[0].size - 1;
1278         hose->pci_mem_offset = pi->pci_mem[0].cpu_base -
1279                                                 pi->pci_mem[0].pci_base_lo;
1280 }
1281
1282 /*
1283  * mv64x60_config_pci_params()
1284  *
1285  * Configure a hose's PCI config space parameters.
1286  */
1287 void __init
1288 mv64x60_config_pci_params(struct pci_controller *hose,
1289         struct mv64x60_pci_info *pi)
1290 {
1291         u32     devfn;
1292         u16     u16_val;
1293         u8      save_exclude;
1294
1295         devfn = PCI_DEVFN(0,0);
1296
1297         save_exclude = mv64x60_pci_exclude_bridge;
1298         mv64x60_pci_exclude_bridge = 0;
1299
1300         /* Set class code to indicate host bridge */
1301         u16_val = PCI_CLASS_BRIDGE_HOST; /* 0x0600 (host bridge) */
1302         early_write_config_word(hose, 0, devfn, PCI_CLASS_DEVICE, u16_val);
1303
1304         /* Enable bridge to be PCI master & respond to PCI MEM cycles */
1305         early_read_config_word(hose, 0, devfn, PCI_COMMAND, &u16_val);
1306         u16_val &= ~(PCI_COMMAND_IO | PCI_COMMAND_INVALIDATE |
1307                 PCI_COMMAND_PARITY | PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK);
1308         u16_val |= pi->pci_cmd_bits | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
1309         early_write_config_word(hose, 0, devfn, PCI_COMMAND, u16_val);
1310
1311         /* Set latency timer, cache line size, clear BIST */
1312         u16_val = (pi->latency_timer << 8) | (L1_CACHE_BYTES >> 2);
1313         early_write_config_word(hose, 0, devfn, PCI_CACHE_LINE_SIZE, u16_val);
1314
1315         mv64x60_pci_exclude_bridge = save_exclude;
1316 }
1317
1318 /*
1319  *****************************************************************************
1320  *
1321  *      PCI Related Routine
1322  *
1323  *****************************************************************************
1324  */
1325 /*
1326  * mv64x60_set_bus()
1327  *
1328  * Set the bus number for the hose directly under the bridge.
1329  */
1330 void __init
1331 mv64x60_set_bus(struct mv64x60_handle *bh, u32 bus, u32 child_bus)
1332 {
1333         struct pci_controller   *hose;
1334         u32     pci_mode, p2p_cfg, pci_cfg_offset, val;
1335         u8      save_exclude;
1336
1337         if (bus == 0) {
1338                 pci_mode = bh->pci_mode_a;
1339                 p2p_cfg = MV64x60_PCI0_P2P_CONFIG;
1340                 pci_cfg_offset = 0x64;
1341                 hose = bh->hose_a;
1342         } else {
1343                 pci_mode = bh->pci_mode_b;
1344                 p2p_cfg = MV64x60_PCI1_P2P_CONFIG;
1345                 pci_cfg_offset = 0xe4;
1346                 hose = bh->hose_b;
1347         }
1348
1349         child_bus &= 0xff;
1350         val = mv64x60_read(bh, p2p_cfg);
1351
1352         if (pci_mode == MV64x60_PCIMODE_CONVENTIONAL) {
1353                 val &= 0xe0000000; /* Force dev num to 0, turn off P2P bridge */
1354                 val |= (child_bus << 16) | 0xff;
1355                 mv64x60_write(bh, p2p_cfg, val);
1356                 (void)mv64x60_read(bh, p2p_cfg); /* Flush FIFO */
1357         } else { /* PCI-X */
1358                 /*
1359                  * Need to use the current bus/dev number (that's in the
1360                  * P2P CONFIG reg) to access the bridge's pci config space.
1361                  */
1362                 save_exclude = mv64x60_pci_exclude_bridge;
1363                 mv64x60_pci_exclude_bridge = 0;
1364                 early_write_config_dword(hose, (val & 0x00ff0000) >> 16,
1365                         PCI_DEVFN(((val & 0x1f000000) >> 24), 0),
1366                         pci_cfg_offset, child_bus << 8);
1367                 mv64x60_pci_exclude_bridge = save_exclude;
1368         }
1369 }
1370
1371 /*
1372  * mv64x60_pci_exclude_device()
1373  *
1374  * This routine is used to make the bridge not appear when the
1375  * PCI subsystem is accessing PCI devices (in PCI config space).
1376  */
1377 int
1378 mv64x60_pci_exclude_device(u8 bus, u8 devfn)
1379 {
1380         struct pci_controller   *hose;
1381
1382         hose = pci_bus_to_hose(bus);
1383
1384         /* Skip slot 0 on both hoses */
1385         if ((mv64x60_pci_exclude_bridge == 1) && (PCI_SLOT(devfn) == 0) &&
1386                 (hose->first_busno == bus))
1387
1388                 return PCIBIOS_DEVICE_NOT_FOUND;
1389         else
1390                 return PCIBIOS_SUCCESSFUL;
1391 } /* mv64x60_pci_exclude_device() */
1392
1393 /*
1394  *****************************************************************************
1395  *
1396  *      Platform Device Routines
1397  *
1398  *****************************************************************************
1399  */
1400
1401 /*
1402  * mv64x60_pd_fixup()
1403  *
1404  * Need to add the base addr of where the bridge's regs are mapped in the
1405  * physical addr space so drivers can ioremap() them.
1406  */
1407 void __init
1408 mv64x60_pd_fixup(struct mv64x60_handle *bh, struct platform_device *pd_devs[],
1409         u32 entries)
1410 {
1411         struct resource *r;
1412         u32             i, j;
1413
1414         for (i=0; i<entries; i++) {
1415                 j = 0;
1416
1417                 while ((r = platform_get_resource(pd_devs[i],IORESOURCE_MEM,j))
1418                         != NULL) {
1419
1420                         r->start += bh->p_base;
1421                         r->end += bh->p_base;
1422                         j++;
1423                 }
1424         }
1425 }
1426
1427 /*
1428  * mv64x60_add_pds()
1429  *
1430  * Add the mv64x60 platform devices to the list of platform devices.
1431  */
1432 static int __init
1433 mv64x60_add_pds(void)
1434 {
1435         return platform_add_devices(mv64x60_pd_devs,
1436                 ARRAY_SIZE(mv64x60_pd_devs));
1437 }
1438 arch_initcall(mv64x60_add_pds);
1439
1440 /*
1441  *****************************************************************************
1442  *
1443  *      GT64260-Specific Routines
1444  *
1445  *****************************************************************************
1446  */
1447 /*
1448  * gt64260_translate_size()
1449  *
1450  * On the GT64260, the size register is really the "top" address of the window.
1451  */
1452 static u32 __init
1453 gt64260_translate_size(u32 base, u32 size, u32 num_bits)
1454 {
1455         return base + mv64x60_mask(size - 1, num_bits);
1456 }
1457
1458 /*
1459  * gt64260_untranslate_size()
1460  *
1461  * Translate the top address of a window into a window size.
1462  */
1463 static u32 __init
1464 gt64260_untranslate_size(u32 base, u32 size, u32 num_bits)
1465 {
1466         if (size >= base)
1467                 size = size - base + (1 << (32 - num_bits));
1468         else
1469                 size = 0;
1470
1471         return size;
1472 }
1473
1474 /*
1475  * gt64260_set_pci2mem_window()
1476  *
1477  * The PCI->MEM window registers are actually in PCI config space so need
1478  * to set them by setting the correct config space BARs.
1479  */
1480 static u32 gt64260_reg_addrs[2][4] __initdata = {
1481         { 0x10, 0x14, 0x18, 0x1c }, { 0x90, 0x94, 0x98, 0x9c }
1482 };
1483
1484 static void __init
1485 gt64260_set_pci2mem_window(struct pci_controller *hose, u32 bus, u32 window,
1486         u32 base)
1487 {
1488         u8      save_exclude;
1489
1490         pr_debug("set pci->mem window: %d, hose: %d, base: 0x%x\n", window,
1491                 hose->index, base);
1492
1493         save_exclude = mv64x60_pci_exclude_bridge;
1494         mv64x60_pci_exclude_bridge = 0;
1495         early_write_config_dword(hose, 0, PCI_DEVFN(0, 0),
1496                 gt64260_reg_addrs[bus][window], mv64x60_mask(base, 20) | 0x8);
1497         mv64x60_pci_exclude_bridge = save_exclude;
1498 }
1499
1500 /*
1501  * gt64260_set_pci2regs_window()
1502  *
1503  * Set where the bridge's registers appear in PCI MEM space.
1504  */
1505 static u32 gt64260_offset[2] __initdata = {0x20, 0xa0};
1506
1507 static void __init
1508 gt64260_set_pci2regs_window(struct mv64x60_handle *bh,
1509         struct pci_controller *hose, u32 bus, u32 base)
1510 {
1511         u8      save_exclude;
1512
1513         pr_debug("set pci->internal regs hose: %d, base: 0x%x\n", hose->index,
1514                 base);
1515
1516         save_exclude = mv64x60_pci_exclude_bridge;
1517         mv64x60_pci_exclude_bridge = 0;
1518         early_write_config_dword(hose, 0, PCI_DEVFN(0,0), gt64260_offset[bus],
1519                 (base << 16));
1520         mv64x60_pci_exclude_bridge = save_exclude;
1521 }
1522
1523 /*
1524  * gt64260_is_enabled_32bit()
1525  *
1526  * On a GT64260, a window is enabled iff its top address is >= to its base
1527  * address.
1528  */
1529 static u32 __init
1530 gt64260_is_enabled_32bit(struct mv64x60_handle *bh, u32 window)
1531 {
1532         u32     rc = 0;
1533
1534         if ((gt64260_32bit_windows[window].base_reg != 0) &&
1535                 (gt64260_32bit_windows[window].size_reg != 0) &&
1536                 ((mv64x60_read(bh, gt64260_32bit_windows[window].size_reg) &
1537                         ((1 << gt64260_32bit_windows[window].size_bits) - 1)) >=
1538                  (mv64x60_read(bh, gt64260_32bit_windows[window].base_reg) &
1539                         ((1 << gt64260_32bit_windows[window].base_bits) - 1))))
1540
1541                 rc = 1;
1542
1543         return rc;
1544 }
1545
1546 /*
1547  * gt64260_enable_window_32bit()
1548  *
1549  * On the GT64260, a window is enabled iff the top address is >= to the base
1550  * address of the window.  Since the window has already been configured by
1551  * the time this routine is called, we have nothing to do here.
1552  */
1553 static void __init
1554 gt64260_enable_window_32bit(struct mv64x60_handle *bh, u32 window)
1555 {
1556         pr_debug("enable 32bit window: %d\n", window);
1557 }
1558
1559 /*
1560  * gt64260_disable_window_32bit()
1561  *
1562  * On a GT64260, you disable a window by setting its top address to be less
1563  * than its base address.
1564  */
1565 static void __init
1566 gt64260_disable_window_32bit(struct mv64x60_handle *bh, u32 window)
1567 {
1568         pr_debug("disable 32bit window: %d, base_reg: 0x%x, size_reg: 0x%x\n",
1569                 window, gt64260_32bit_windows[window].base_reg,
1570                 gt64260_32bit_windows[window].size_reg);
1571
1572         if ((gt64260_32bit_windows[window].base_reg != 0) &&
1573                 (gt64260_32bit_windows[window].size_reg != 0)) {
1574
1575                 /* To disable, make bottom reg higher than top reg */
1576                 mv64x60_write(bh, gt64260_32bit_windows[window].base_reg,0xfff);
1577                 mv64x60_write(bh, gt64260_32bit_windows[window].size_reg, 0);
1578         }
1579 }
1580
1581 /*
1582  * gt64260_enable_window_64bit()
1583  *
1584  * On the GT64260, a window is enabled iff the top address is >= to the base
1585  * address of the window.  Since the window has already been configured by
1586  * the time this routine is called, we have nothing to do here.
1587  */
1588 static void __init
1589 gt64260_enable_window_64bit(struct mv64x60_handle *bh, u32 window)
1590 {
1591         pr_debug("enable 64bit window: %d\n", window);
1592 }
1593
1594 /*
1595  * gt64260_disable_window_64bit()
1596  *
1597  * On a GT64260, you disable a window by setting its top address to be less
1598  * than its base address.
1599  */
1600 static void __init
1601 gt64260_disable_window_64bit(struct mv64x60_handle *bh, u32 window)
1602 {
1603         pr_debug("disable 64bit window: %d, base_reg: 0x%x, size_reg: 0x%x\n",
1604                 window, gt64260_64bit_windows[window].base_lo_reg,
1605                 gt64260_64bit_windows[window].size_reg);
1606
1607         if ((gt64260_64bit_windows[window].base_lo_reg != 0) &&
1608                 (gt64260_64bit_windows[window].size_reg != 0)) {
1609
1610                 /* To disable, make bottom reg higher than top reg */
1611                 mv64x60_write(bh, gt64260_64bit_windows[window].base_lo_reg,
1612                                                                         0xfff);
1613                 mv64x60_write(bh, gt64260_64bit_windows[window].base_hi_reg, 0);
1614                 mv64x60_write(bh, gt64260_64bit_windows[window].size_reg, 0);
1615         }
1616 }
1617
1618 /*
1619  * gt64260_disable_all_windows()
1620  *
1621  * The GT64260 has several windows that aren't represented in the table of
1622  * windows at the top of this file.  This routine turns all of them off
1623  * except for the memory controller windows, of course.
1624  */
1625 static void __init
1626 gt64260_disable_all_windows(struct mv64x60_handle *bh,
1627         struct mv64x60_setup_info *si)
1628 {
1629         u32     i, preserve;
1630
1631         /* Disable 32bit windows (don't disable cpu->mem windows) */
1632         for (i=MV64x60_CPU2DEV_0_WIN; i<MV64x60_32BIT_WIN_COUNT; i++) {
1633                 if (i < 32)
1634                         preserve = si->window_preserve_mask_32_lo & (1 << i);
1635                 else
1636                         preserve = si->window_preserve_mask_32_hi & (1<<(i-32));
1637
1638                 if (!preserve)
1639                         gt64260_disable_window_32bit(bh, i);
1640         }
1641
1642         /* Disable 64bit windows */
1643         for (i=0; i<MV64x60_64BIT_WIN_COUNT; i++)
1644                 if (!(si->window_preserve_mask_64 & (1<<i)))
1645                         gt64260_disable_window_64bit(bh, i);
1646
1647         /* Turn off cpu protection windows not in gt64260_32bit_windows[] */
1648         mv64x60_write(bh, GT64260_CPU_PROT_BASE_4, 0xfff);
1649         mv64x60_write(bh, GT64260_CPU_PROT_SIZE_4, 0);
1650         mv64x60_write(bh, GT64260_CPU_PROT_BASE_5, 0xfff);
1651         mv64x60_write(bh, GT64260_CPU_PROT_SIZE_5, 0);
1652         mv64x60_write(bh, GT64260_CPU_PROT_BASE_6, 0xfff);
1653         mv64x60_write(bh, GT64260_CPU_PROT_SIZE_6, 0);
1654         mv64x60_write(bh, GT64260_CPU_PROT_BASE_7, 0xfff);
1655         mv64x60_write(bh, GT64260_CPU_PROT_SIZE_7, 0);
1656
1657         /* Turn off PCI->MEM access cntl wins not in gt64260_64bit_windows[] */
1658         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_4_BASE_LO, 0xfff);
1659         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_4_BASE_HI, 0);
1660         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_4_SIZE, 0);
1661         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_5_BASE_LO, 0xfff);
1662         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_5_BASE_HI, 0);
1663         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_5_SIZE, 0);
1664         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_6_BASE_LO, 0xfff);
1665         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_6_BASE_HI, 0);
1666         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_6_SIZE, 0);
1667         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_7_BASE_LO, 0xfff);
1668         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_7_BASE_HI, 0);
1669         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_7_SIZE, 0);
1670
1671         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_4_BASE_LO, 0xfff);
1672         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_4_BASE_HI, 0);
1673         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_4_SIZE, 0);
1674         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_5_BASE_LO, 0xfff);
1675         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_5_BASE_HI, 0);
1676         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_5_SIZE, 0);
1677         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_6_BASE_LO, 0xfff);
1678         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_6_BASE_HI, 0);
1679         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_6_SIZE, 0);
1680         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_7_BASE_LO, 0xfff);
1681         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_7_BASE_HI, 0);
1682         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_7_SIZE, 0);
1683
1684         /* Disable all PCI-><whatever> windows */
1685         mv64x60_set_bits(bh, MV64x60_PCI0_BAR_ENABLE, 0x07fffdff);
1686         mv64x60_set_bits(bh, MV64x60_PCI1_BAR_ENABLE, 0x07fffdff);
1687
1688         /*
1689          * Some firmwares enable a bunch of intr sources
1690          * for the PCI INT output pins.
1691          */
1692         mv64x60_write(bh, GT64260_IC_CPU_INTR_MASK_LO, 0);
1693         mv64x60_write(bh, GT64260_IC_CPU_INTR_MASK_HI, 0);
1694         mv64x60_write(bh, GT64260_IC_PCI0_INTR_MASK_LO, 0);
1695         mv64x60_write(bh, GT64260_IC_PCI0_INTR_MASK_HI, 0);
1696         mv64x60_write(bh, GT64260_IC_PCI1_INTR_MASK_LO, 0);
1697         mv64x60_write(bh, GT64260_IC_PCI1_INTR_MASK_HI, 0);
1698         mv64x60_write(bh, GT64260_IC_CPU_INT_0_MASK, 0);
1699         mv64x60_write(bh, GT64260_IC_CPU_INT_1_MASK, 0);
1700         mv64x60_write(bh, GT64260_IC_CPU_INT_2_MASK, 0);
1701         mv64x60_write(bh, GT64260_IC_CPU_INT_3_MASK, 0);
1702 }
1703
1704 /*
1705  * gt64260a_chip_specific_init()
1706  *
1707  * Implement errata workarounds for the GT64260A.
1708  */
1709 static void __init
1710 gt64260a_chip_specific_init(struct mv64x60_handle *bh,
1711         struct mv64x60_setup_info *si)
1712 {
1713 #ifdef CONFIG_SERIAL_MPSC
1714         struct resource *r;
1715 #endif
1716 #if !defined(CONFIG_NOT_COHERENT_CACHE)
1717         u32     val;
1718         u8      save_exclude;
1719 #endif
1720
1721         if (si->pci_0.enable_bus)
1722                 mv64x60_set_bits(bh, MV64x60_PCI0_CMD,
1723                         ((1<<4) | (1<<5) | (1<<9) | (1<<13)));
1724
1725         if (si->pci_1.enable_bus)
1726                 mv64x60_set_bits(bh, MV64x60_PCI1_CMD,
1727                         ((1<<4) | (1<<5) | (1<<9) | (1<<13)));
1728
1729         /*
1730          * Dave Wilhardt found that bit 4 in the PCI Command registers must
1731          * be set if you are using cache coherency.
1732          */
1733 #if !defined(CONFIG_NOT_COHERENT_CACHE)
1734         /* Res #MEM-4 -- cpu read buffer to buffer 1 */
1735         if ((mv64x60_read(bh, MV64x60_CPU_MODE) & 0xf0) == 0x40)
1736                 mv64x60_set_bits(bh, GT64260_SDRAM_CONFIG, (1<<26));
1737
1738         save_exclude = mv64x60_pci_exclude_bridge;
1739         mv64x60_pci_exclude_bridge = 0;
1740         if (si->pci_0.enable_bus) {
1741                 early_read_config_dword(bh->hose_a, 0, PCI_DEVFN(0,0),
1742                         PCI_COMMAND, &val);
1743                 val |= PCI_COMMAND_INVALIDATE;
1744                 early_write_config_dword(bh->hose_a, 0, PCI_DEVFN(0,0),
1745                         PCI_COMMAND, val);
1746         }
1747
1748         if (si->pci_1.enable_bus) {
1749                 early_read_config_dword(bh->hose_b, 0, PCI_DEVFN(0,0),
1750                         PCI_COMMAND, &val);
1751                 val |= PCI_COMMAND_INVALIDATE;
1752                 early_write_config_dword(bh->hose_b, 0, PCI_DEVFN(0,0),
1753                         PCI_COMMAND, val);
1754         }
1755         mv64x60_pci_exclude_bridge = save_exclude;
1756 #endif
1757
1758         /* Disable buffer/descriptor snooping */
1759         mv64x60_clr_bits(bh, 0xf280, (1<< 6) | (1<<14) | (1<<22) | (1<<30));
1760         mv64x60_clr_bits(bh, 0xf2c0, (1<< 6) | (1<<14) | (1<<22) | (1<<30));
1761
1762 #ifdef CONFIG_SERIAL_MPSC
1763         mv64x60_mpsc0_pdata.mirror_regs = 1;
1764         mv64x60_mpsc0_pdata.cache_mgmt = 1;
1765         mv64x60_mpsc1_pdata.mirror_regs = 1;
1766         mv64x60_mpsc1_pdata.cache_mgmt = 1;
1767
1768         if ((r = platform_get_resource(&mpsc1_device, IORESOURCE_IRQ, 0))
1769                         != NULL) {
1770                 r->start = MV64x60_IRQ_SDMA_0;
1771                 r->end = MV64x60_IRQ_SDMA_0;
1772         }
1773 #endif
1774 }
1775
1776 /*
1777  * gt64260b_chip_specific_init()
1778  *
1779  * Implement errata workarounds for the GT64260B.
1780  */
1781 static void __init
1782 gt64260b_chip_specific_init(struct mv64x60_handle *bh,
1783         struct mv64x60_setup_info *si)
1784 {
1785 #ifdef CONFIG_SERIAL_MPSC
1786         struct resource *r;
1787 #endif
1788 #if !defined(CONFIG_NOT_COHERENT_CACHE)
1789         u32     val;
1790         u8      save_exclude;
1791 #endif
1792
1793         if (si->pci_0.enable_bus)
1794                 mv64x60_set_bits(bh, MV64x60_PCI0_CMD,
1795                         ((1<<4) | (1<<5) | (1<<9) | (1<<13)));
1796
1797         if (si->pci_1.enable_bus)
1798                 mv64x60_set_bits(bh, MV64x60_PCI1_CMD,
1799                         ((1<<4) | (1<<5) | (1<<9) | (1<<13)));
1800
1801         /*
1802          * Dave Wilhardt found that bit 4 in the PCI Command registers must
1803          * be set if you are using cache coherency.
1804          */
1805 #if !defined(CONFIG_NOT_COHERENT_CACHE)
1806         mv64x60_set_bits(bh, GT64260_CPU_WB_PRIORITY_BUFFER_DEPTH, 0xf);
1807
1808         /* Res #MEM-4 -- cpu read buffer to buffer 1 */
1809         if ((mv64x60_read(bh, MV64x60_CPU_MODE) & 0xf0) == 0x40)
1810                 mv64x60_set_bits(bh, GT64260_SDRAM_CONFIG, (1<<26));
1811
1812         save_exclude = mv64x60_pci_exclude_bridge;
1813         mv64x60_pci_exclude_bridge = 0;
1814         if (si->pci_0.enable_bus) {
1815                 early_read_config_dword(bh->hose_a, 0, PCI_DEVFN(0,0),
1816                         PCI_COMMAND, &val);
1817                 val |= PCI_COMMAND_INVALIDATE;
1818                 early_write_config_dword(bh->hose_a, 0, PCI_DEVFN(0,0),
1819                         PCI_COMMAND, val);
1820         }
1821
1822         if (si->pci_1.enable_bus) {
1823                 early_read_config_dword(bh->hose_b, 0, PCI_DEVFN(0,0),
1824                         PCI_COMMAND, &val);
1825                 val |= PCI_COMMAND_INVALIDATE;
1826                 early_write_config_dword(bh->hose_b, 0, PCI_DEVFN(0,0),
1827                         PCI_COMMAND, val);
1828         }
1829         mv64x60_pci_exclude_bridge = save_exclude;
1830 #endif
1831
1832         /* Disable buffer/descriptor snooping */
1833         mv64x60_clr_bits(bh, 0xf280, (1<< 6) | (1<<14) | (1<<22) | (1<<30));
1834         mv64x60_clr_bits(bh, 0xf2c0, (1<< 6) | (1<<14) | (1<<22) | (1<<30));
1835
1836 #ifdef CONFIG_SERIAL_MPSC
1837         /*
1838          * The 64260B is not supposed to have the bug where the MPSC & ENET
1839          * can't access cache coherent regions.  However, testing has shown
1840          * that the MPSC, at least, still has this bug.
1841          */
1842         mv64x60_mpsc0_pdata.cache_mgmt = 1;
1843         mv64x60_mpsc1_pdata.cache_mgmt = 1;
1844
1845         if ((r = platform_get_resource(&mpsc1_device, IORESOURCE_IRQ, 0))
1846                         != NULL) {
1847                 r->start = MV64x60_IRQ_SDMA_0;
1848                 r->end = MV64x60_IRQ_SDMA_0;
1849         }
1850 #endif
1851 }
1852
1853 /*
1854  *****************************************************************************
1855  *
1856  *      MV64360-Specific Routines
1857  *
1858  *****************************************************************************
1859  */
1860 /*
1861  * mv64360_translate_size()
1862  *
1863  * On the MV64360, the size register is set similar to the size you get
1864  * from a pci config space BAR register.  That is, programmed from LSB to MSB
1865  * as a sequence of 1's followed by a sequence of 0's. IOW, "size -1" with the
1866  * assumption that the size is a power of 2.
1867  */
1868 static u32 __init
1869 mv64360_translate_size(u32 base_addr, u32 size, u32 num_bits)
1870 {
1871         return mv64x60_mask(size - 1, num_bits);
1872 }
1873
1874 /*
1875  * mv64360_untranslate_size()
1876  *
1877  * Translate the size register value of a window into a window size.
1878  */
1879 static u32 __init
1880 mv64360_untranslate_size(u32 base_addr, u32 size, u32 num_bits)
1881 {
1882         if (size > 0) {
1883                 size >>= (32 - num_bits);
1884                 size++;
1885                 size <<= (32 - num_bits);
1886         }
1887
1888         return size;
1889 }
1890
1891 /*
1892  * mv64360_set_pci2mem_window()
1893  *
1894  * The PCI->MEM window registers are actually in PCI config space so need
1895  * to set them by setting the correct config space BARs.
1896  */
1897 struct {
1898         u32     fcn;
1899         u32     base_hi_bar;
1900         u32     base_lo_bar;
1901 } static mv64360_reg_addrs[2][4] __initdata = {
1902         {{ 0, 0x14, 0x10 }, { 0, 0x1c, 0x18 },
1903          { 1, 0x14, 0x10 }, { 1, 0x1c, 0x18 }},
1904         {{ 0, 0x94, 0x90 }, { 0, 0x9c, 0x98 },
1905          { 1, 0x94, 0x90 }, { 1, 0x9c, 0x98 }}
1906 };
1907
1908 static void __init
1909 mv64360_set_pci2mem_window(struct pci_controller *hose, u32 bus, u32 window,
1910         u32 base)
1911 {
1912         u8 save_exclude;
1913
1914         pr_debug("set pci->mem window: %d, hose: %d, base: 0x%x\n", window,
1915                 hose->index, base);
1916
1917         save_exclude = mv64x60_pci_exclude_bridge;
1918         mv64x60_pci_exclude_bridge = 0;
1919         early_write_config_dword(hose, 0,
1920                 PCI_DEVFN(0, mv64360_reg_addrs[bus][window].fcn),
1921                 mv64360_reg_addrs[bus][window].base_hi_bar, 0);
1922         early_write_config_dword(hose, 0,
1923                 PCI_DEVFN(0, mv64360_reg_addrs[bus][window].fcn),
1924                 mv64360_reg_addrs[bus][window].base_lo_bar,
1925                 mv64x60_mask(base,20) | 0xc);
1926         mv64x60_pci_exclude_bridge = save_exclude;
1927 }
1928
1929 /*
1930  * mv64360_set_pci2regs_window()
1931  *
1932  * Set where the bridge's registers appear in PCI MEM space.
1933  */
1934 static u32 mv64360_offset[2][2] __initdata = {{0x20, 0x24}, {0xa0, 0xa4}};
1935
1936 static void __init
1937 mv64360_set_pci2regs_window(struct mv64x60_handle *bh,
1938         struct pci_controller *hose, u32 bus, u32 base)
1939 {
1940         u8      save_exclude;
1941
1942         pr_debug("set pci->internal regs hose: %d, base: 0x%x\n", hose->index,
1943                 base);
1944
1945         save_exclude = mv64x60_pci_exclude_bridge;
1946         mv64x60_pci_exclude_bridge = 0;
1947         early_write_config_dword(hose, 0, PCI_DEVFN(0,0),
1948                 mv64360_offset[bus][0], (base << 16));
1949         early_write_config_dword(hose, 0, PCI_DEVFN(0,0),
1950                 mv64360_offset[bus][1], 0);
1951         mv64x60_pci_exclude_bridge = save_exclude;
1952 }
1953
1954 /*
1955  * mv64360_is_enabled_32bit()
1956  *
1957  * On a MV64360, a window is enabled by either clearing a bit in the
1958  * CPU BAR Enable reg or setting a bit in the window's base reg.
1959  * Note that this doesn't work for windows on the PCI slave side but we don't
1960  * check those so its okay.
1961  */
1962 static u32 __init
1963 mv64360_is_enabled_32bit(struct mv64x60_handle *bh, u32 window)
1964 {
1965         u32     extra, rc = 0;
1966
1967         if (((mv64360_32bit_windows[window].base_reg != 0) &&
1968                 (mv64360_32bit_windows[window].size_reg != 0)) ||
1969                 (window == MV64x60_CPU2SRAM_WIN)) {
1970
1971                 extra = mv64360_32bit_windows[window].extra;
1972
1973                 switch (extra & MV64x60_EXTRA_MASK) {
1974                 case MV64x60_EXTRA_CPUWIN_ENAB:
1975                         rc = (mv64x60_read(bh, MV64360_CPU_BAR_ENABLE) &
1976                                 (1 << (extra & 0x1f))) == 0;
1977                         break;
1978
1979                 case MV64x60_EXTRA_CPUPROT_ENAB:
1980                         rc = (mv64x60_read(bh,
1981                                 mv64360_32bit_windows[window].base_reg) &
1982                                         (1 << (extra & 0x1f))) != 0;
1983                         break;
1984
1985                 case MV64x60_EXTRA_ENET_ENAB:
1986                         rc = (mv64x60_read(bh, MV64360_ENET2MEM_BAR_ENABLE) &
1987                                 (1 << (extra & 0x7))) == 0;
1988                         break;
1989
1990                 case MV64x60_EXTRA_MPSC_ENAB:
1991                         rc = (mv64x60_read(bh, MV64360_MPSC2MEM_BAR_ENABLE) &
1992                                 (1 << (extra & 0x3))) == 0;
1993                         break;
1994
1995                 case MV64x60_EXTRA_IDMA_ENAB:
1996                         rc = (mv64x60_read(bh, MV64360_IDMA2MEM_BAR_ENABLE) &
1997                                 (1 << (extra & 0x7))) == 0;
1998                         break;
1999
2000                 default:
2001                         printk(KERN_ERR "mv64360_is_enabled: %s\n",
2002                                 "32bit table corrupted");
2003                 }
2004         }
2005
2006         return rc;
2007 }
2008
2009 /*
2010  * mv64360_enable_window_32bit()
2011  *
2012  * On a MV64360, a window is enabled by either clearing a bit in the
2013  * CPU BAR Enable reg or setting a bit in the window's base reg.
2014  */
2015 static void __init
2016 mv64360_enable_window_32bit(struct mv64x60_handle *bh, u32 window)
2017 {
2018         u32     extra;
2019
2020         pr_debug("enable 32bit window: %d\n", window);
2021
2022         if (((mv64360_32bit_windows[window].base_reg != 0) &&
2023                 (mv64360_32bit_windows[window].size_reg != 0)) ||
2024                 (window == MV64x60_CPU2SRAM_WIN)) {
2025
2026                 extra = mv64360_32bit_windows[window].extra;
2027
2028                 switch (extra & MV64x60_EXTRA_MASK) {
2029                 case MV64x60_EXTRA_CPUWIN_ENAB:
2030                         mv64x60_clr_bits(bh, MV64360_CPU_BAR_ENABLE,
2031                                 (1 << (extra & 0x1f)));
2032                         break;
2033
2034                 case MV64x60_EXTRA_CPUPROT_ENAB:
2035                         mv64x60_set_bits(bh,
2036                                 mv64360_32bit_windows[window].base_reg,
2037                                 (1 << (extra & 0x1f)));
2038                         break;
2039
2040                 case MV64x60_EXTRA_ENET_ENAB:
2041                         mv64x60_clr_bits(bh, MV64360_ENET2MEM_BAR_ENABLE,
2042                                 (1 << (extra & 0x7)));
2043                         break;
2044
2045                 case MV64x60_EXTRA_MPSC_ENAB:
2046                         mv64x60_clr_bits(bh, MV64360_MPSC2MEM_BAR_ENABLE,
2047                                 (1 << (extra & 0x3)));
2048                         break;
2049
2050                 case MV64x60_EXTRA_IDMA_ENAB:
2051                         mv64x60_clr_bits(bh, MV64360_IDMA2MEM_BAR_ENABLE,
2052                                 (1 << (extra & 0x7)));
2053                         break;
2054
2055                 default:
2056                         printk(KERN_ERR "mv64360_enable: %s\n",
2057                                 "32bit table corrupted");
2058                 }
2059         }
2060 }
2061
2062 /*
2063  * mv64360_disable_window_32bit()
2064  *
2065  * On a MV64360, a window is disabled by either setting a bit in the
2066  * CPU BAR Enable reg or clearing a bit in the window's base reg.
2067  */
2068 static void __init
2069 mv64360_disable_window_32bit(struct mv64x60_handle *bh, u32 window)
2070 {
2071         u32     extra;
2072
2073         pr_debug("disable 32bit window: %d, base_reg: 0x%x, size_reg: 0x%x\n",
2074                 window, mv64360_32bit_windows[window].base_reg,
2075                 mv64360_32bit_windows[window].size_reg);
2076
2077         if (((mv64360_32bit_windows[window].base_reg != 0) &&
2078                 (mv64360_32bit_windows[window].size_reg != 0)) ||
2079                 (window == MV64x60_CPU2SRAM_WIN)) {
2080
2081                 extra = mv64360_32bit_windows[window].extra;
2082
2083                 switch (extra & MV64x60_EXTRA_MASK) {
2084                 case MV64x60_EXTRA_CPUWIN_ENAB:
2085                         mv64x60_set_bits(bh, MV64360_CPU_BAR_ENABLE,
2086                                 (1 << (extra & 0x1f)));
2087                         break;
2088
2089                 case MV64x60_EXTRA_CPUPROT_ENAB:
2090                         mv64x60_clr_bits(bh,
2091                                 mv64360_32bit_windows[window].base_reg,
2092                                 (1 << (extra & 0x1f)));
2093                         break;
2094
2095                 case MV64x60_EXTRA_ENET_ENAB:
2096                         mv64x60_set_bits(bh, MV64360_ENET2MEM_BAR_ENABLE,
2097                                 (1 << (extra & 0x7)));
2098                         break;
2099
2100                 case MV64x60_EXTRA_MPSC_ENAB:
2101                         mv64x60_set_bits(bh, MV64360_MPSC2MEM_BAR_ENABLE,
2102                                 (1 << (extra & 0x3)));
2103                         break;
2104
2105                 case MV64x60_EXTRA_IDMA_ENAB:
2106                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_BAR_ENABLE,
2107                                 (1 << (extra & 0x7)));
2108                         break;
2109
2110                 default:
2111                         printk(KERN_ERR "mv64360_disable: %s\n",
2112                                 "32bit table corrupted");
2113                 }
2114         }
2115 }
2116
2117 /*
2118  * mv64360_enable_window_64bit()
2119  *
2120  * On the MV64360, a 64-bit window is enabled by setting a bit in the window's
2121  * base reg.
2122  */
2123 static void __init
2124 mv64360_enable_window_64bit(struct mv64x60_handle *bh, u32 window)
2125 {
2126         pr_debug("enable 64bit window: %d\n", window);
2127
2128         if ((mv64360_64bit_windows[window].base_lo_reg!= 0) &&
2129                 (mv64360_64bit_windows[window].size_reg != 0)) {
2130
2131                 if ((mv64360_64bit_windows[window].extra & MV64x60_EXTRA_MASK)
2132                                 == MV64x60_EXTRA_PCIACC_ENAB)
2133                         mv64x60_set_bits(bh,
2134                                 mv64360_64bit_windows[window].base_lo_reg,
2135                                 (1 << (mv64360_64bit_windows[window].extra &
2136                                                                         0x1f)));
2137                 else
2138                         printk(KERN_ERR "mv64360_enable: %s\n",
2139                                 "64bit table corrupted");
2140         }
2141 }
2142
2143 /*
2144  * mv64360_disable_window_64bit()
2145  *
2146  * On a MV64360, a 64-bit window is disabled by clearing a bit in the window's
2147  * base reg.
2148  */
2149 static void __init
2150 mv64360_disable_window_64bit(struct mv64x60_handle *bh, u32 window)
2151 {
2152         pr_debug("disable 64bit window: %d, base_reg: 0x%x, size_reg: 0x%x\n",
2153                 window, mv64360_64bit_windows[window].base_lo_reg,
2154                 mv64360_64bit_windows[window].size_reg);
2155
2156         if ((mv64360_64bit_windows[window].base_lo_reg != 0) &&
2157                         (mv64360_64bit_windows[window].size_reg != 0)) {
2158                 if ((mv64360_64bit_windows[window].extra & MV64x60_EXTRA_MASK)
2159                                 == MV64x60_EXTRA_PCIACC_ENAB)
2160                         mv64x60_clr_bits(bh,
2161                                 mv64360_64bit_windows[window].base_lo_reg,
2162                                 (1 << (mv64360_64bit_windows[window].extra &
2163                                                                         0x1f)));
2164                 else
2165                         printk(KERN_ERR "mv64360_disable: %s\n",
2166                                 "64bit table corrupted");
2167         }
2168 }
2169
2170 /*
2171  * mv64360_disable_all_windows()
2172  *
2173  * The MV64360 has a few windows that aren't represented in the table of
2174  * windows at the top of this file.  This routine turns all of them off
2175  * except for the memory controller windows, of course.
2176  */
2177 static void __init
2178 mv64360_disable_all_windows(struct mv64x60_handle *bh,
2179         struct mv64x60_setup_info *si)
2180 {
2181         u32     preserve, i;
2182
2183         /* Disable 32bit windows (don't disable cpu->mem windows) */
2184         for (i=MV64x60_CPU2DEV_0_WIN; i<MV64x60_32BIT_WIN_COUNT; i++) {
2185                 if (i < 32)
2186                         preserve = si->window_preserve_mask_32_lo & (1 << i);
2187                 else
2188                         preserve = si->window_preserve_mask_32_hi & (1<<(i-32));
2189
2190                 if (!preserve)
2191                         mv64360_disable_window_32bit(bh, i);
2192         }
2193
2194         /* Disable 64bit windows */
2195         for (i=0; i<MV64x60_64BIT_WIN_COUNT; i++)
2196                 if (!(si->window_preserve_mask_64 & (1<<i)))
2197                         mv64360_disable_window_64bit(bh, i);
2198
2199         /* Turn off PCI->MEM access cntl wins not in mv64360_64bit_windows[] */
2200         mv64x60_clr_bits(bh, MV64x60_PCI0_ACC_CNTL_4_BASE_LO, 0);
2201         mv64x60_clr_bits(bh, MV64x60_PCI0_ACC_CNTL_5_BASE_LO, 0);
2202         mv64x60_clr_bits(bh, MV64x60_PCI1_ACC_CNTL_4_BASE_LO, 0);
2203         mv64x60_clr_bits(bh, MV64x60_PCI1_ACC_CNTL_5_BASE_LO, 0);
2204
2205         /* Disable all PCI-><whatever> windows */
2206         mv64x60_set_bits(bh, MV64x60_PCI0_BAR_ENABLE, 0x0000f9ff);
2207         mv64x60_set_bits(bh, MV64x60_PCI1_BAR_ENABLE, 0x0000f9ff);
2208 }
2209
2210 /*
2211  * mv64360_config_io2mem_windows()
2212  *
2213  * ENET, MPSC, and IDMA ctlrs on the MV64[34]60 have separate windows that
2214  * must be set up so that the respective ctlr can access system memory.
2215  */
2216 static u32 enet_tab[MV64x60_CPU2MEM_WINDOWS] __initdata = {
2217         MV64x60_ENET2MEM_0_WIN, MV64x60_ENET2MEM_1_WIN,
2218         MV64x60_ENET2MEM_2_WIN, MV64x60_ENET2MEM_3_WIN,
2219 };
2220
2221 static u32 mpsc_tab[MV64x60_CPU2MEM_WINDOWS] __initdata = {
2222         MV64x60_MPSC2MEM_0_WIN, MV64x60_MPSC2MEM_1_WIN,
2223         MV64x60_MPSC2MEM_2_WIN, MV64x60_MPSC2MEM_3_WIN,
2224 };
2225
2226 static u32 idma_tab[MV64x60_CPU2MEM_WINDOWS] __initdata = {
2227         MV64x60_IDMA2MEM_0_WIN, MV64x60_IDMA2MEM_1_WIN,
2228         MV64x60_IDMA2MEM_2_WIN, MV64x60_IDMA2MEM_3_WIN,
2229 };
2230
2231 static u32 dram_selects[MV64x60_CPU2MEM_WINDOWS] __initdata =
2232         { 0xe, 0xd, 0xb, 0x7 };
2233
2234 static void __init
2235 mv64360_config_io2mem_windows(struct mv64x60_handle *bh,
2236         struct mv64x60_setup_info *si,
2237         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
2238 {
2239         u32     i, win;
2240
2241         pr_debug("config_io2regs_windows: enet, mpsc, idma -> bridge regs\n");
2242
2243         mv64x60_write(bh, MV64360_ENET2MEM_ACC_PROT_0, 0);
2244         mv64x60_write(bh, MV64360_ENET2MEM_ACC_PROT_1, 0);
2245         mv64x60_write(bh, MV64360_ENET2MEM_ACC_PROT_2, 0);
2246
2247         mv64x60_write(bh, MV64360_MPSC2MEM_ACC_PROT_0, 0);
2248         mv64x60_write(bh, MV64360_MPSC2MEM_ACC_PROT_1, 0);
2249
2250         mv64x60_write(bh, MV64360_IDMA2MEM_ACC_PROT_0, 0);
2251         mv64x60_write(bh, MV64360_IDMA2MEM_ACC_PROT_1, 0);
2252         mv64x60_write(bh, MV64360_IDMA2MEM_ACC_PROT_2, 0);
2253         mv64x60_write(bh, MV64360_IDMA2MEM_ACC_PROT_3, 0);
2254
2255         /* Assume that mem ctlr has no more windows than embedded I/O ctlr */
2256         for (win=MV64x60_CPU2MEM_0_WIN,i=0;win<=MV64x60_CPU2MEM_3_WIN;win++,i++)
2257                 if (bh->ci->is_enabled_32bit(bh, win)) {
2258                         mv64x60_set_32bit_window(bh, enet_tab[i],
2259                                 mem_windows[i][0], mem_windows[i][1],
2260                                 (dram_selects[i] << 8) |
2261                                 (si->enet_options[i] & 0x3000));
2262                         bh->ci->enable_window_32bit(bh, enet_tab[i]);
2263
2264                         /* Give enet r/w access to memory region */
2265                         mv64x60_set_bits(bh, MV64360_ENET2MEM_ACC_PROT_0,
2266                                 (0x3 << (i << 1)));
2267                         mv64x60_set_bits(bh, MV64360_ENET2MEM_ACC_PROT_1,
2268                                 (0x3 << (i << 1)));
2269                         mv64x60_set_bits(bh, MV64360_ENET2MEM_ACC_PROT_2,
2270                                 (0x3 << (i << 1)));
2271
2272                         mv64x60_set_32bit_window(bh, mpsc_tab[i],
2273                                 mem_windows[i][0], mem_windows[i][1],
2274                                 (dram_selects[i] << 8) |
2275                                 (si->mpsc_options[i] & 0x3000));
2276                         bh->ci->enable_window_32bit(bh, mpsc_tab[i]);
2277
2278                         /* Give mpsc r/w access to memory region */
2279                         mv64x60_set_bits(bh, MV64360_MPSC2MEM_ACC_PROT_0,
2280                                 (0x3 << (i << 1)));
2281                         mv64x60_set_bits(bh, MV64360_MPSC2MEM_ACC_PROT_1,
2282                                 (0x3 << (i << 1)));
2283
2284                         mv64x60_set_32bit_window(bh, idma_tab[i],
2285                                 mem_windows[i][0], mem_windows[i][1],
2286                                 (dram_selects[i] << 8) |
2287                                 (si->idma_options[i] & 0x3000));
2288                         bh->ci->enable_window_32bit(bh, idma_tab[i]);
2289
2290                         /* Give idma r/w access to memory region */
2291                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_ACC_PROT_0,
2292                                 (0x3 << (i << 1)));
2293                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_ACC_PROT_1,
2294                                 (0x3 << (i << 1)));
2295                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_ACC_PROT_2,
2296                                 (0x3 << (i << 1)));
2297                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_ACC_PROT_3,
2298                                 (0x3 << (i << 1)));
2299                 }
2300 }
2301
2302 /*
2303  * mv64360_set_mpsc2regs_window()
2304  *
2305  * MPSC has a window to the bridge's internal registers.  Call this routine
2306  * to change that window so it doesn't conflict with the windows mapping the
2307  * mpsc to system memory.
2308  */
2309 static void __init
2310 mv64360_set_mpsc2regs_window(struct mv64x60_handle *bh, u32 base)
2311 {
2312         pr_debug("set mpsc->internal regs, base: 0x%x\n", base);
2313         mv64x60_write(bh, MV64360_MPSC2REGS_BASE, base & 0xffff0000);
2314 }
2315
2316 /*
2317  * mv64360_chip_specific_init()
2318  *
2319  * Implement errata workarounds for the MV64360.
2320  */
2321 static void __init
2322 mv64360_chip_specific_init(struct mv64x60_handle *bh,
2323         struct mv64x60_setup_info *si)
2324 {
2325 #if !defined(CONFIG_NOT_COHERENT_CACHE)
2326         mv64x60_set_bits(bh, MV64360_D_UNIT_CONTROL_HIGH, (1<<24));
2327 #endif
2328 #ifdef CONFIG_SERIAL_MPSC
2329         mv64x60_mpsc0_pdata.brg_can_tune = 1;
2330         mv64x60_mpsc0_pdata.cache_mgmt = 1;
2331         mv64x60_mpsc1_pdata.brg_can_tune = 1;
2332         mv64x60_mpsc1_pdata.cache_mgmt = 1;
2333 #endif
2334 }
2335
2336 /*
2337  * mv64460_chip_specific_init()
2338  *
2339  * Implement errata workarounds for the MV64460.
2340  */
2341 static void __init
2342 mv64460_chip_specific_init(struct mv64x60_handle *bh,
2343         struct mv64x60_setup_info *si)
2344 {
2345 #if !defined(CONFIG_NOT_COHERENT_CACHE)
2346         mv64x60_set_bits(bh, MV64360_D_UNIT_CONTROL_HIGH, (1<<24) | (1<<25));
2347         mv64x60_set_bits(bh, MV64460_D_UNIT_MMASK, (1<<1) | (1<<4));
2348 #endif
2349 #ifdef CONFIG_SERIAL_MPSC
2350         mv64x60_mpsc0_pdata.brg_can_tune = 1;
2351         mv64x60_mpsc0_pdata.cache_mgmt = 1;
2352         mv64x60_mpsc1_pdata.brg_can_tune = 1;
2353         mv64x60_mpsc1_pdata.cache_mgmt = 1;
2354 #endif
2355 }
2356
2357
2358 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
2359 /* Export the hotswap register via sysfs for enum event monitoring */
2360 #define VAL_LEN_MAX     11 /* 32-bit hex or dec stringified number + '\n' */
2361
2362 DECLARE_MUTEX(mv64xxx_hs_lock);
2363
2364 static ssize_t
2365 mv64xxx_hs_reg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
2366 {
2367         u32     v;
2368         u8      save_exclude;
2369
2370         if (off > 0)
2371                 return 0;
2372         if (count < VAL_LEN_MAX)
2373                 return -EINVAL;
2374
2375         if (down_interruptible(&mv64xxx_hs_lock))
2376                 return -ERESTARTSYS;
2377         save_exclude = mv64x60_pci_exclude_bridge;
2378         mv64x60_pci_exclude_bridge = 0;
2379         early_read_config_dword(&sysfs_hose_a, 0, PCI_DEVFN(0, 0),
2380                         MV64360_PCICFG_CPCI_HOTSWAP, &v);
2381         mv64x60_pci_exclude_bridge = save_exclude;
2382         up(&mv64xxx_hs_lock);
2383
2384         return sprintf(buf, "0x%08x\n", v);
2385 }
2386
2387 static ssize_t
2388 mv64xxx_hs_reg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
2389 {
2390         u32     v;
2391         u8      save_exclude;
2392
2393         if (off > 0)
2394                 return 0;
2395         if (count <= 0)
2396                 return -EINVAL;
2397
2398         if (sscanf(buf, "%i", &v) == 1) {
2399                 if (down_interruptible(&mv64xxx_hs_lock))
2400                         return -ERESTARTSYS;
2401                 save_exclude = mv64x60_pci_exclude_bridge;
2402                 mv64x60_pci_exclude_bridge = 0;
2403                 early_write_config_dword(&sysfs_hose_a, 0, PCI_DEVFN(0, 0),
2404                                 MV64360_PCICFG_CPCI_HOTSWAP, v);
2405                 mv64x60_pci_exclude_bridge = save_exclude;
2406                 up(&mv64xxx_hs_lock);
2407         }
2408         else
2409                 count = -EINVAL;
2410
2411         return count;
2412 }
2413
2414 static struct bin_attribute mv64xxx_hs_reg_attr = { /* Hotswap register */
2415         .attr = {
2416                 .name = "hs_reg",
2417                 .mode = S_IRUGO | S_IWUSR,
2418         },
2419         .size  = VAL_LEN_MAX,
2420         .read  = mv64xxx_hs_reg_read,
2421         .write = mv64xxx_hs_reg_write,
2422 };
2423
2424 /* Provide sysfs file indicating if this platform supports the hs_reg */
2425 static ssize_t
2426 mv64xxx_hs_reg_valid_show(struct device *dev, struct device_attribute *attr,
2427                 char *buf)
2428 {
2429         struct platform_device  *pdev;
2430         struct mv64xxx_pdata    *pdp;
2431         u32                     v;
2432
2433         pdev = container_of(dev, struct platform_device, dev);
2434         pdp = (struct mv64xxx_pdata *)pdev->dev.platform_data;
2435
2436         if (down_interruptible(&mv64xxx_hs_lock))
2437                 return -ERESTARTSYS;
2438         v = pdp->hs_reg_valid;
2439         up(&mv64xxx_hs_lock);
2440
2441         return sprintf(buf, "%i\n", v);
2442 }
2443 static DEVICE_ATTR(hs_reg_valid, S_IRUGO, mv64xxx_hs_reg_valid_show, NULL);
2444
2445 static int __init
2446 mv64xxx_sysfs_init(void)
2447 {
2448         sysfs_create_bin_file(&mv64xxx_device.dev.kobj, &mv64xxx_hs_reg_attr);
2449         sysfs_create_file(&mv64xxx_device.dev.kobj,&dev_attr_hs_reg_valid.attr);
2450         return 0;
2451 }
2452 subsys_initcall(mv64xxx_sysfs_init);
2453 #endif