git.oblomov.eu Git - linux-2.6/blob - arch/ppc/syslib/mv64x60.c

   1 /*
   2  * arch/ppc/syslib/mv64x60.c
   3  *
   4  * Common routines for the Marvell/Galileo Discovery line of host bridges
   5  * (gt64260, mv64360, mv64460, ...).
   6  *
   7  * Author: Mark A. Greer <mgreer@mvista.com>
   8  *
   9  * 2004 (c) MontaVista, Software, Inc.  This file is licensed under
  10  * the terms of the GNU General Public License version 2.  This program
  11  * is licensed "as is" without any warranty of any kind, whether express
  12  * or implied.
  13  */
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/pci.h>
  17 #include <linux/slab.h>
  18 #include <linux/module.h>
  19 #include <linux/string.h>
  20 #include <linux/spinlock.h>
  21 #include <linux/mv643xx.h>
  22
  23 #include <asm/byteorder.h>
  24 #include <asm/io.h>
  25 #include <asm/irq.h>
  26 #include <asm/uaccess.h>
  27 #include <asm/machdep.h>
  28 #include <asm/pci-bridge.h>
  29 #include <asm/delay.h>
  30 #include <asm/mv64x60.h>
  31
  32
  33 u8 mv64x60_pci_exclude_bridge = 1;
  34 DEFINE_SPINLOCK(mv64x60_lock);
  35
  36 static phys_addr_t      mv64x60_bridge_pbase;
  37 static void             *mv64x60_bridge_vbase;
  38 static u32              mv64x60_bridge_type = MV64x60_TYPE_INVALID;
  39 static u32              mv64x60_bridge_rev;
  40 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
  41 static struct pci_controller    sysfs_hose_a;
  42 #endif
  43
  44 static u32 gt64260_translate_size(u32 base, u32 size, u32 num_bits);
  45 static u32 gt64260_untranslate_size(u32 base, u32 size, u32 num_bits);
  46 static void gt64260_set_pci2mem_window(struct pci_controller *hose, u32 bus,
  47         u32 window, u32 base);
  48 static void gt64260_set_pci2regs_window(struct mv64x60_handle *bh,
  49         struct pci_controller *hose, u32 bus, u32 base);
  50 static u32 gt64260_is_enabled_32bit(struct mv64x60_handle *bh, u32 window);
  51 static void gt64260_enable_window_32bit(struct mv64x60_handle *bh, u32 window);
  52 static void gt64260_disable_window_32bit(struct mv64x60_handle *bh, u32 window);
  53 static void gt64260_enable_window_64bit(struct mv64x60_handle *bh, u32 window);
  54 static void gt64260_disable_window_64bit(struct mv64x60_handle *bh, u32 window);
  55 static void gt64260_disable_all_windows(struct mv64x60_handle *bh,
  56         struct mv64x60_setup_info *si);
  57 static void gt64260a_chip_specific_init(struct mv64x60_handle *bh,
  58         struct mv64x60_setup_info *si);
  59 static void gt64260b_chip_specific_init(struct mv64x60_handle *bh,
  60         struct mv64x60_setup_info *si);
  61
  62 static u32 mv64360_translate_size(u32 base, u32 size, u32 num_bits);
  63 static u32 mv64360_untranslate_size(u32 base, u32 size, u32 num_bits);
  64 static void mv64360_set_pci2mem_window(struct pci_controller *hose, u32 bus,
  65         u32 window, u32 base);
  66 static void mv64360_set_pci2regs_window(struct mv64x60_handle *bh,
  67         struct pci_controller *hose, u32 bus, u32 base);
  68 static u32 mv64360_is_enabled_32bit(struct mv64x60_handle *bh, u32 window);
  69 static void mv64360_enable_window_32bit(struct mv64x60_handle *bh, u32 window);
  70 static void mv64360_disable_window_32bit(struct mv64x60_handle *bh, u32 window);
  71 static void mv64360_enable_window_64bit(struct mv64x60_handle *bh, u32 window);
  72 static void mv64360_disable_window_64bit(struct mv64x60_handle *bh, u32 window);
  73 static void mv64360_disable_all_windows(struct mv64x60_handle *bh,
  74         struct mv64x60_setup_info *si);
  75 static void mv64360_config_io2mem_windows(struct mv64x60_handle *bh,
  76         struct mv64x60_setup_info *si,
  77         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2]);
  78 static void mv64360_set_mpsc2regs_window(struct mv64x60_handle *bh, u32 base);
  79 static void mv64360_chip_specific_init(struct mv64x60_handle *bh,
  80         struct mv64x60_setup_info *si);
  81 static void mv64460_chip_specific_init(struct mv64x60_handle *bh,
  82         struct mv64x60_setup_info *si);
  83
  84
  85 /*
  86  * Define tables that have the chip-specific info for each type of
  87  * Marvell bridge chip.
  88  */
  89 static struct mv64x60_chip_info gt64260a_ci __initdata = { /* GT64260A */
  90         .translate_size         = gt64260_translate_size,
  91         .untranslate_size       = gt64260_untranslate_size,
  92         .set_pci2mem_window     = gt64260_set_pci2mem_window,
  93         .set_pci2regs_window    = gt64260_set_pci2regs_window,
  94         .is_enabled_32bit       = gt64260_is_enabled_32bit,
  95         .enable_window_32bit    = gt64260_enable_window_32bit,
  96         .disable_window_32bit   = gt64260_disable_window_32bit,
  97         .enable_window_64bit    = gt64260_enable_window_64bit,
  98         .disable_window_64bit   = gt64260_disable_window_64bit,
  99         .disable_all_windows    = gt64260_disable_all_windows,
 100         .chip_specific_init     = gt64260a_chip_specific_init,
 101         .window_tab_32bit       = gt64260_32bit_windows,
 102         .window_tab_64bit       = gt64260_64bit_windows,
 103 };
 104
 105 static struct mv64x60_chip_info gt64260b_ci __initdata = { /* GT64260B */
 106         .translate_size         = gt64260_translate_size,
 107         .untranslate_size       = gt64260_untranslate_size,
 108         .set_pci2mem_window     = gt64260_set_pci2mem_window,
 109         .set_pci2regs_window    = gt64260_set_pci2regs_window,
 110         .is_enabled_32bit       = gt64260_is_enabled_32bit,
 111         .enable_window_32bit    = gt64260_enable_window_32bit,
 112         .disable_window_32bit   = gt64260_disable_window_32bit,
 113         .enable_window_64bit    = gt64260_enable_window_64bit,
 114         .disable_window_64bit   = gt64260_disable_window_64bit,
 115         .disable_all_windows    = gt64260_disable_all_windows,
 116         .chip_specific_init     = gt64260b_chip_specific_init,
 117         .window_tab_32bit       = gt64260_32bit_windows,
 118         .window_tab_64bit       = gt64260_64bit_windows,
 119 };
 120
 121 static struct mv64x60_chip_info mv64360_ci __initdata = { /* MV64360 */
 122         .translate_size         = mv64360_translate_size,
 123         .untranslate_size       = mv64360_untranslate_size,
 124         .set_pci2mem_window     = mv64360_set_pci2mem_window,
 125         .set_pci2regs_window    = mv64360_set_pci2regs_window,
 126         .is_enabled_32bit       = mv64360_is_enabled_32bit,
 127         .enable_window_32bit    = mv64360_enable_window_32bit,
 128         .disable_window_32bit   = mv64360_disable_window_32bit,
 129         .enable_window_64bit    = mv64360_enable_window_64bit,
 130         .disable_window_64bit   = mv64360_disable_window_64bit,
 131         .disable_all_windows    = mv64360_disable_all_windows,
 132         .config_io2mem_windows  = mv64360_config_io2mem_windows,
 133         .set_mpsc2regs_window   = mv64360_set_mpsc2regs_window,
 134         .chip_specific_init     = mv64360_chip_specific_init,
 135         .window_tab_32bit       = mv64360_32bit_windows,
 136         .window_tab_64bit       = mv64360_64bit_windows,
 137 };
 138
 139 static struct mv64x60_chip_info mv64460_ci __initdata = { /* MV64460 */
 140         .translate_size         = mv64360_translate_size,
 141         .untranslate_size       = mv64360_untranslate_size,
 142         .set_pci2mem_window     = mv64360_set_pci2mem_window,
 143         .set_pci2regs_window    = mv64360_set_pci2regs_window,
 144         .is_enabled_32bit       = mv64360_is_enabled_32bit,
 145         .enable_window_32bit    = mv64360_enable_window_32bit,
 146         .disable_window_32bit   = mv64360_disable_window_32bit,
 147         .enable_window_64bit    = mv64360_enable_window_64bit,
 148         .disable_window_64bit   = mv64360_disable_window_64bit,
 149         .disable_all_windows    = mv64360_disable_all_windows,
 150         .config_io2mem_windows  = mv64360_config_io2mem_windows,
 151         .set_mpsc2regs_window   = mv64360_set_mpsc2regs_window,
 152         .chip_specific_init     = mv64460_chip_specific_init,
 153         .window_tab_32bit       = mv64360_32bit_windows,
 154         .window_tab_64bit       = mv64360_64bit_windows,
 155 };
 156
 157 /*
 158  *****************************************************************************
 159  *
 160  *      Platform Device Definitions
 161  *
 162  *****************************************************************************
 163  */
 164 #ifdef CONFIG_SERIAL_MPSC
 165 static struct mpsc_shared_pdata mv64x60_mpsc_shared_pdata = {
 166         .mrr_val                = 0x3ffffe38,
 167         .rcrr_val               = 0,
 168         .tcrr_val               = 0,
 169         .intr_cause_val         = 0,
 170         .intr_mask_val          = 0,
 171 };
 172
 173 static struct resource mv64x60_mpsc_shared_resources[] = {
 174         /* Do not change the order of the IORESOURCE_MEM resources */
 175         [0] = {
 176                 .name   = "mpsc routing base",
 177                 .start  = MV64x60_MPSC_ROUTING_OFFSET,
 178                 .end    = MV64x60_MPSC_ROUTING_OFFSET +
 179                         MPSC_ROUTING_REG_BLOCK_SIZE - 1,
 180                 .flags  = IORESOURCE_MEM,
 181         },
 182         [1] = {
 183                 .name   = "sdma intr base",
 184                 .start  = MV64x60_SDMA_INTR_OFFSET,
 185                 .end    = MV64x60_SDMA_INTR_OFFSET +
 186                         MPSC_SDMA_INTR_REG_BLOCK_SIZE - 1,
 187                 .flags  = IORESOURCE_MEM,
 188         },
 189 };
 190
 191 static struct platform_device mpsc_shared_device = { /* Shared device */
 192         .name           = MPSC_SHARED_NAME,
 193         .id             = 0,
 194         .num_resources  = ARRAY_SIZE(mv64x60_mpsc_shared_resources),
 195         .resource       = mv64x60_mpsc_shared_resources,
 196         .dev = {
 197                 .platform_data = &mv64x60_mpsc_shared_pdata,
 198         },
 199 };
 200
 201 static struct mpsc_pdata mv64x60_mpsc0_pdata = {
 202         .mirror_regs            = 0,
 203         .cache_mgmt             = 0,
 204         .max_idle               = 0,
 205         .default_baud           = 9600,
 206         .default_bits           = 8,
 207         .default_parity         = 'n',
 208         .default_flow           = 'n',
 209         .chr_1_val              = 0x00000000,
 210         .chr_2_val              = 0x00000000,
 211         .chr_10_val             = 0x00000003,
 212         .mpcr_val               = 0,
 213         .bcr_val                = 0,
 214         .brg_can_tune           = 0,
 215         .brg_clk_src            = 8,            /* Default to TCLK */
 216         .brg_clk_freq           = 100000000,    /* Default to 100 MHz */
 217 };
 218
 219 static struct resource mv64x60_mpsc0_resources[] = {
 220         /* Do not change the order of the IORESOURCE_MEM resources */
 221         [0] = {
 222                 .name   = "mpsc 0 base",
 223                 .start  = MV64x60_MPSC_0_OFFSET,
 224                 .end    = MV64x60_MPSC_0_OFFSET + MPSC_REG_BLOCK_SIZE - 1,
 225                 .flags  = IORESOURCE_MEM,
 226         },
 227         [1] = {
 228                 .name   = "sdma 0 base",
 229                 .start  = MV64x60_SDMA_0_OFFSET,
 230                 .end    = MV64x60_SDMA_0_OFFSET + MPSC_SDMA_REG_BLOCK_SIZE - 1,
 231                 .flags  = IORESOURCE_MEM,
 232         },
 233         [2] = {
 234                 .name   = "brg 0 base",
 235                 .start  = MV64x60_BRG_0_OFFSET,
 236                 .end    = MV64x60_BRG_0_OFFSET + MPSC_BRG_REG_BLOCK_SIZE - 1,
 237                 .flags  = IORESOURCE_MEM,
 238         },
 239         [3] = {
 240                 .name   = "sdma 0 irq",
 241                 .start  = MV64x60_IRQ_SDMA_0,
 242                 .end    = MV64x60_IRQ_SDMA_0,
 243                 .flags  = IORESOURCE_IRQ,
 244         },
 245 };
 246
 247 static struct platform_device mpsc0_device = {
 248         .name           = MPSC_CTLR_NAME,
 249         .id             = 0,
 250         .num_resources  = ARRAY_SIZE(mv64x60_mpsc0_resources),
 251         .resource       = mv64x60_mpsc0_resources,
 252         .dev = {
 253                 .platform_data = &mv64x60_mpsc0_pdata,
 254         },
 255 };
 256
 257 static struct mpsc_pdata mv64x60_mpsc1_pdata = {
 258         .mirror_regs            = 0,
 259         .cache_mgmt             = 0,
 260         .max_idle               = 0,
 261         .default_baud           = 9600,
 262         .default_bits           = 8,
 263         .default_parity         = 'n',
 264         .default_flow           = 'n',
 265         .chr_1_val              = 0x00000000,
 266         .chr_1_val              = 0x00000000,
 267         .chr_2_val              = 0x00000000,
 268         .chr_10_val             = 0x00000003,
 269         .mpcr_val               = 0,
 270         .bcr_val                = 0,
 271         .brg_can_tune           = 0,
 272         .brg_clk_src            = 8,            /* Default to TCLK */
 273         .brg_clk_freq           = 100000000,    /* Default to 100 MHz */
 274 };
 275
 276 static struct resource mv64x60_mpsc1_resources[] = {
 277         /* Do not change the order of the IORESOURCE_MEM resources */
 278         [0] = {
 279                 .name   = "mpsc 1 base",
 280                 .start  = MV64x60_MPSC_1_OFFSET,
 281                 .end    = MV64x60_MPSC_1_OFFSET + MPSC_REG_BLOCK_SIZE - 1,
 282                 .flags  = IORESOURCE_MEM,
 283         },
 284         [1] = {
 285                 .name   = "sdma 1 base",
 286                 .start  = MV64x60_SDMA_1_OFFSET,
 287                 .end    = MV64x60_SDMA_1_OFFSET + MPSC_SDMA_REG_BLOCK_SIZE - 1,
 288                 .flags  = IORESOURCE_MEM,
 289         },
 290         [2] = {
 291                 .name   = "brg 1 base",
 292                 .start  = MV64x60_BRG_1_OFFSET,
 293                 .end    = MV64x60_BRG_1_OFFSET + MPSC_BRG_REG_BLOCK_SIZE - 1,
 294                 .flags  = IORESOURCE_MEM,
 295         },
 296         [3] = {
 297                 .name   = "sdma 1 irq",
 298                 .start  = MV64360_IRQ_SDMA_1,
 299                 .end    = MV64360_IRQ_SDMA_1,
 300                 .flags  = IORESOURCE_IRQ,
 301         },
 302 };
 303
 304 static struct platform_device mpsc1_device = {
 305         .name           = MPSC_CTLR_NAME,
 306         .id             = 1,
 307         .num_resources  = ARRAY_SIZE(mv64x60_mpsc1_resources),
 308         .resource       = mv64x60_mpsc1_resources,
 309         .dev = {
 310                 .platform_data = &mv64x60_mpsc1_pdata,
 311         },
 312 };
 313 #endif
 314
 315 #ifdef CONFIG_MV643XX_ETH
 316 static struct resource mv64x60_eth_shared_resources[] = {
 317         [0] = {
 318                 .name   = "ethernet shared base",
 319                 .start  = MV643XX_ETH_SHARED_REGS,
 320                 .end    = MV643XX_ETH_SHARED_REGS +
 321                                         MV643XX_ETH_SHARED_REGS_SIZE - 1,
 322                 .flags  = IORESOURCE_MEM,
 323         },
 324 };
 325
 326 static struct platform_device mv64x60_eth_shared_device = {
 327         .name           = MV643XX_ETH_SHARED_NAME,
 328         .id             = 0,
 329         .num_resources  = ARRAY_SIZE(mv64x60_eth_shared_resources),
 330         .resource       = mv64x60_eth_shared_resources,
 331 };
 332
 333 #ifdef CONFIG_MV643XX_ETH_0
 334 static struct resource mv64x60_eth0_resources[] = {
 335         [0] = {
 336                 .name   = "eth0 irq",
 337                 .start  = MV64x60_IRQ_ETH_0,
 338                 .end    = MV64x60_IRQ_ETH_0,
 339                 .flags  = IORESOURCE_IRQ,
 340         },
 341 };
 342
 343 static struct mv643xx_eth_platform_data eth0_pd;
 344
 345 static struct platform_device eth0_device = {
 346         .name           = MV643XX_ETH_NAME,
 347         .id             = 0,
 348         .num_resources  = ARRAY_SIZE(mv64x60_eth0_resources),
 349         .resource       = mv64x60_eth0_resources,
 350         .dev = {
 351                 .platform_data = &eth0_pd,
 352         },
 353 };
 354 #endif
 355
 356 #ifdef CONFIG_MV643XX_ETH_1
 357 static struct resource mv64x60_eth1_resources[] = {
 358         [0] = {
 359                 .name   = "eth1 irq",
 360                 .start  = MV64x60_IRQ_ETH_1,
 361                 .end    = MV64x60_IRQ_ETH_1,
 362                 .flags  = IORESOURCE_IRQ,
 363         },
 364 };
 365
 366 static struct mv643xx_eth_platform_data eth1_pd;
 367
 368 static struct platform_device eth1_device = {
 369         .name           = MV643XX_ETH_NAME,
 370         .id             = 1,
 371         .num_resources  = ARRAY_SIZE(mv64x60_eth1_resources),
 372         .resource       = mv64x60_eth1_resources,
 373         .dev = {
 374                 .platform_data = &eth1_pd,
 375         },
 376 };
 377 #endif
 378
 379 #ifdef CONFIG_MV643XX_ETH_2
 380 static struct resource mv64x60_eth2_resources[] = {
 381         [0] = {
 382                 .name   = "eth2 irq",
 383                 .start  = MV64x60_IRQ_ETH_2,
 384                 .end    = MV64x60_IRQ_ETH_2,
 385                 .flags  = IORESOURCE_IRQ,
 386         },
 387 };
 388
 389 static struct mv643xx_eth_platform_data eth2_pd;
 390
 391 static struct platform_device eth2_device = {
 392         .name           = MV643XX_ETH_NAME,
 393         .id             = 2,
 394         .num_resources  = ARRAY_SIZE(mv64x60_eth2_resources),
 395         .resource       = mv64x60_eth2_resources,
 396         .dev = {
 397                 .platform_data = &eth2_pd,
 398         },
 399 };
 400 #endif
 401 #endif
 402
 403 #ifdef  CONFIG_I2C_MV64XXX
 404 static struct mv64xxx_i2c_pdata mv64xxx_i2c_pdata = {
 405         .freq_m                 = 8,
 406         .freq_n                 = 3,
 407         .timeout                = 1000, /* Default timeout of 1 second */
 408         .retries                = 1,
 409 };
 410
 411 static struct resource mv64xxx_i2c_resources[] = {
 412         /* Do not change the order of the IORESOURCE_MEM resources */
 413         [0] = {
 414                 .name   = "mv64xxx i2c base",
 415                 .start  = MV64XXX_I2C_OFFSET,
 416                 .end    = MV64XXX_I2C_OFFSET + MV64XXX_I2C_REG_BLOCK_SIZE - 1,
 417                 .flags  = IORESOURCE_MEM,
 418         },
 419         [1] = {
 420                 .name   = "mv64xxx i2c irq",
 421                 .start  = MV64x60_IRQ_I2C,
 422                 .end    = MV64x60_IRQ_I2C,
 423                 .flags  = IORESOURCE_IRQ,
 424         },
 425 };
 426
 427 static struct platform_device i2c_device = {
 428         .name           = MV64XXX_I2C_CTLR_NAME,
 429         .id             = 0,
 430         .num_resources  = ARRAY_SIZE(mv64xxx_i2c_resources),
 431         .resource       = mv64xxx_i2c_resources,
 432         .dev = {
 433                 .platform_data = &mv64xxx_i2c_pdata,
 434         },
 435 };
 436 #endif
 437
 438 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
 439 static struct mv64xxx_pdata mv64xxx_pdata = {
 440         .hs_reg_valid   = 0,
 441 };
 442
 443 static struct platform_device mv64xxx_device = { /* general mv64x60 stuff */
 444         .name   = MV64XXX_DEV_NAME,
 445         .id     = 0,
 446         .dev = {
 447                 .platform_data = &mv64xxx_pdata,
 448         },
 449 };
 450 #endif
 451
 452 static struct platform_device *mv64x60_pd_devs[] __initdata = {
 453 #ifdef CONFIG_SERIAL_MPSC
 454         &mpsc_shared_device,
 455         &mpsc0_device,
 456         &mpsc1_device,
 457 #endif
 458 #ifdef CONFIG_MV643XX_ETH
 459         &mv64x60_eth_shared_device,
 460 #endif
 461 #ifdef CONFIG_MV643XX_ETH_0
 462         &eth0_device,
 463 #endif
 464 #ifdef CONFIG_MV643XX_ETH_1
 465         &eth1_device,
 466 #endif
 467 #ifdef CONFIG_MV643XX_ETH_2
 468         &eth2_device,
 469 #endif
 470 #ifdef  CONFIG_I2C_MV64XXX
 471         &i2c_device,
 472 #endif
 473 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
 474         &mv64xxx_device,
 475 #endif
 476 };
 477
 478 /*
 479  *****************************************************************************
 480  *
 481  *      Bridge Initialization Routines
 482  *
 483  *****************************************************************************
 484  */
 485 /*
 486  * mv64x60_init()
 487  *
 488  * Initialze the bridge based on setting passed in via 'si'.  The bridge
 489  * handle, 'bh', will be set so that it can be used to make subsequent
 490  * calls to routines in this file.
 491  */
 492 int __init
 493 mv64x60_init(struct mv64x60_handle *bh, struct mv64x60_setup_info *si)
 494 {
 495         u32     mem_windows[MV64x60_CPU2MEM_WINDOWS][2];
 496
 497         if (ppc_md.progress)
 498                 ppc_md.progress("mv64x60 initialization", 0x0);
 499
 500         spin_lock_init(&mv64x60_lock);
 501         mv64x60_early_init(bh, si);
 502
 503         if (mv64x60_get_type(bh) || mv64x60_setup_for_chip(bh)) {
 504                 iounmap(bh->v_base);
 505                 bh->v_base = 0;
 506                 if (ppc_md.progress)
 507                         ppc_md.progress("mv64x60_init: Can't determine chip",0);
 508                 return -1;
 509         }
 510
 511         bh->ci->disable_all_windows(bh, si);
 512         mv64x60_get_mem_windows(bh, mem_windows);
 513         mv64x60_config_cpu2mem_windows(bh, si, mem_windows);
 514
 515         if (bh->ci->config_io2mem_windows)
 516                 bh->ci->config_io2mem_windows(bh, si, mem_windows);
 517         if (bh->ci->set_mpsc2regs_window)
 518                 bh->ci->set_mpsc2regs_window(bh, si->phys_reg_base);
 519
 520         if (si->pci_1.enable_bus) {
 521                 bh->io_base_b = (u32)ioremap(si->pci_1.pci_io.cpu_base,
 522                         si->pci_1.pci_io.size);
 523                 isa_io_base = bh->io_base_b;
 524         }
 525
 526         if (si->pci_0.enable_bus) {
 527                 bh->io_base_a = (u32)ioremap(si->pci_0.pci_io.cpu_base,
 528                         si->pci_0.pci_io.size);
 529                 isa_io_base = bh->io_base_a;
 530
 531                 mv64x60_alloc_hose(bh, MV64x60_PCI0_CONFIG_ADDR,
 532                         MV64x60_PCI0_CONFIG_DATA, &bh->hose_a);
 533                 mv64x60_config_resources(bh->hose_a, &si->pci_0, bh->io_base_a);
 534                 mv64x60_config_pci_params(bh->hose_a, &si->pci_0);
 535
 536                 mv64x60_config_cpu2pci_windows(bh, &si->pci_0, 0);
 537                 mv64x60_config_pci2mem_windows(bh, bh->hose_a, &si->pci_0, 0,
 538                         mem_windows);
 539                 bh->ci->set_pci2regs_window(bh, bh->hose_a, 0,
 540                         si->phys_reg_base);
 541         }
 542
 543         if (si->pci_1.enable_bus) {
 544                 mv64x60_alloc_hose(bh, MV64x60_PCI1_CONFIG_ADDR,
 545                         MV64x60_PCI1_CONFIG_DATA, &bh->hose_b);
 546                 mv64x60_config_resources(bh->hose_b, &si->pci_1, bh->io_base_b);
 547                 mv64x60_config_pci_params(bh->hose_b, &si->pci_1);
 548
 549                 mv64x60_config_cpu2pci_windows(bh, &si->pci_1, 1);
 550                 mv64x60_config_pci2mem_windows(bh, bh->hose_b, &si->pci_1, 1,
 551                         mem_windows);
 552                 bh->ci->set_pci2regs_window(bh, bh->hose_b, 1,
 553                         si->phys_reg_base);
 554         }
 555
 556         bh->ci->chip_specific_init(bh, si);
 557         mv64x60_pd_fixup(bh, mv64x60_pd_devs, ARRAY_SIZE(mv64x60_pd_devs));
 558
 559         return 0;
 560 }
 561
 562 /*
 563  * mv64x60_early_init()
 564  *
 565  * Do some bridge work that must take place before we start messing with
 566  * the bridge for real.
 567  */
 568 void __init
 569 mv64x60_early_init(struct mv64x60_handle *bh, struct mv64x60_setup_info *si)
 570 {
 571         struct pci_controller   hose_a, hose_b;
 572
 573         memset(bh, 0, sizeof(*bh));
 574
 575         bh->p_base = si->phys_reg_base;
 576         bh->v_base = ioremap(bh->p_base, MV64x60_INTERNAL_SPACE_SIZE);
 577
 578         mv64x60_bridge_pbase = bh->p_base;
 579         mv64x60_bridge_vbase = bh->v_base;
 580
 581         /* Assuming pci mode [reserved] bits 4:5 on 64260 are 0 */
 582         bh->pci_mode_a = mv64x60_read(bh, MV64x60_PCI0_MODE) &
 583                 MV64x60_PCIMODE_MASK;
 584         bh->pci_mode_b = mv64x60_read(bh, MV64x60_PCI1_MODE) &
 585                 MV64x60_PCIMODE_MASK;
 586
 587         /* Need temporary hose structs to call mv64x60_set_bus() */
 588         memset(&hose_a, 0, sizeof(hose_a));
 589         memset(&hose_b, 0, sizeof(hose_b));
 590         setup_indirect_pci_nomap(&hose_a, bh->v_base + MV64x60_PCI0_CONFIG_ADDR,
 591                 bh->v_base + MV64x60_PCI0_CONFIG_DATA);
 592         setup_indirect_pci_nomap(&hose_b, bh->v_base + MV64x60_PCI1_CONFIG_ADDR,
 593                 bh->v_base + MV64x60_PCI1_CONFIG_DATA);
 594         bh->hose_a = &hose_a;
 595         bh->hose_b = &hose_b;
 596
 597 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
 598         /* Save a copy of hose_a for sysfs functions -- hack */
 599         memcpy(&sysfs_hose_a, &hose_a, sizeof(hose_a));
 600 #endif
 601
 602         mv64x60_set_bus(bh, 0, 0);
 603         mv64x60_set_bus(bh, 1, 0);
 604
 605         bh->hose_a = NULL;
 606         bh->hose_b = NULL;
 607
 608         /* Clear bit 0 of PCI addr decode control so PCI->CPU remap 1:1 */
 609         mv64x60_clr_bits(bh, MV64x60_PCI0_PCI_DECODE_CNTL, 0x00000001);
 610         mv64x60_clr_bits(bh, MV64x60_PCI1_PCI_DECODE_CNTL, 0x00000001);
 611
 612         /* Bit 12 MUST be 0; set bit 27--don't auto-update cpu remap regs */
 613         mv64x60_clr_bits(bh, MV64x60_CPU_CONFIG, (1<<12));
 614         mv64x60_set_bits(bh, MV64x60_CPU_CONFIG, (1<<27));
 615
 616         mv64x60_set_bits(bh, MV64x60_PCI0_TO_RETRY, 0xffff);
 617         mv64x60_set_bits(bh, MV64x60_PCI1_TO_RETRY, 0xffff);
 618 }
 619
 620 /*
 621  *****************************************************************************
 622  *
 623  *      Window Config Routines
 624  *
 625  *****************************************************************************
 626  */
 627 /*
 628  * mv64x60_get_32bit_window()
 629  *
 630  * Determine the base address and size of a 32-bit window on the bridge.
 631  */
 632 void __init
 633 mv64x60_get_32bit_window(struct mv64x60_handle *bh, u32 window,
 634         u32 *base, u32 *size)
 635 {
 636         u32     val, base_reg, size_reg, base_bits, size_bits;
 637         u32     (*get_from_field)(u32 val, u32 num_bits);
 638
 639         base_reg = bh->ci->window_tab_32bit[window].base_reg;
 640
 641         if (base_reg != 0) {
 642                 size_reg  = bh->ci->window_tab_32bit[window].size_reg;
 643                 base_bits = bh->ci->window_tab_32bit[window].base_bits;
 644                 size_bits = bh->ci->window_tab_32bit[window].size_bits;
 645                 get_from_field= bh->ci->window_tab_32bit[window].get_from_field;
 646
 647                 val = mv64x60_read(bh, base_reg);
 648                 *base = get_from_field(val, base_bits);
 649
 650                 if (size_reg != 0) {
 651                         val = mv64x60_read(bh, size_reg);
 652                         val = get_from_field(val, size_bits);
 653                         *size = bh->ci->untranslate_size(*base, val, size_bits);
 654                 } else
 655                         *size = 0;
 656         } else {
 657                 *base = 0;
 658                 *size = 0;
 659         }
 660
 661         pr_debug("get 32bit window: %d, base: 0x%x, size: 0x%x\n",
 662                 window, *base, *size);
 663 }
 664
 665 /*
 666  * mv64x60_set_32bit_window()
 667  *
 668  * Set the base address and size of a 32-bit window on the bridge.
 669  */
 670 void __init
 671 mv64x60_set_32bit_window(struct mv64x60_handle *bh, u32 window,
 672         u32 base, u32 size, u32 other_bits)
 673 {
 674         u32     val, base_reg, size_reg, base_bits, size_bits;
 675         u32     (*map_to_field)(u32 val, u32 num_bits);
 676
 677         pr_debug("set 32bit window: %d, base: 0x%x, size: 0x%x, other: 0x%x\n",
 678                 window, base, size, other_bits);
 679
 680         base_reg = bh->ci->window_tab_32bit[window].base_reg;
 681
 682         if (base_reg != 0) {
 683                 size_reg  = bh->ci->window_tab_32bit[window].size_reg;
 684                 base_bits = bh->ci->window_tab_32bit[window].base_bits;
 685                 size_bits = bh->ci->window_tab_32bit[window].size_bits;
 686                 map_to_field = bh->ci->window_tab_32bit[window].map_to_field;
 687
 688                 val = map_to_field(base, base_bits) | other_bits;
 689                 mv64x60_write(bh, base_reg, val);
 690
 691                 if (size_reg != 0) {
 692                         val = bh->ci->translate_size(base, size, size_bits);
 693                         val = map_to_field(val, size_bits);
 694                         mv64x60_write(bh, size_reg, val);
 695                 }
 696
 697                 (void)mv64x60_read(bh, base_reg); /* Flush FIFO */
 698         }
 699 }
 700
 701 /*
 702  * mv64x60_get_64bit_window()
 703  *
 704  * Determine the base address and size of a 64-bit window on the bridge.
 705  */
 706 void __init
 707 mv64x60_get_64bit_window(struct mv64x60_handle *bh, u32 window,
 708         u32 *base_hi, u32 *base_lo, u32 *size)
 709 {
 710         u32     val, base_lo_reg, size_reg, base_lo_bits, size_bits;
 711         u32     (*get_from_field)(u32 val, u32 num_bits);
 712
 713         base_lo_reg = bh->ci->window_tab_64bit[window].base_lo_reg;
 714
 715         if (base_lo_reg != 0) {
 716                 size_reg = bh->ci->window_tab_64bit[window].size_reg;
 717                 base_lo_bits = bh->ci->window_tab_64bit[window].base_lo_bits;
 718                 size_bits = bh->ci->window_tab_64bit[window].size_bits;
 719                 get_from_field= bh->ci->window_tab_64bit[window].get_from_field;
 720
 721                 *base_hi = mv64x60_read(bh,
 722                         bh->ci->window_tab_64bit[window].base_hi_reg);
 723
 724                 val = mv64x60_read(bh, base_lo_reg);
 725                 *base_lo = get_from_field(val, base_lo_bits);
 726
 727                 if (size_reg != 0) {
 728                         val = mv64x60_read(bh, size_reg);
 729                         val = get_from_field(val, size_bits);
 730                         *size = bh->ci->untranslate_size(*base_lo, val,
 731                                                                 size_bits);
 732                 } else
 733                         *size = 0;
 734         } else {
 735                 *base_hi = 0;
 736                 *base_lo = 0;
 737                 *size = 0;
 738         }
 739
 740         pr_debug("get 64bit window: %d, base hi: 0x%x, base lo: 0x%x, "
 741                 "size: 0x%x\n", window, *base_hi, *base_lo, *size);
 742 }
 743
 744 /*
 745  * mv64x60_set_64bit_window()
 746  *
 747  * Set the base address and size of a 64-bit window on the bridge.
 748  */
 749 void __init
 750 mv64x60_set_64bit_window(struct mv64x60_handle *bh, u32 window,
 751         u32 base_hi, u32 base_lo, u32 size, u32 other_bits)
 752 {
 753         u32     val, base_lo_reg, size_reg, base_lo_bits, size_bits;
 754         u32     (*map_to_field)(u32 val, u32 num_bits);
 755
 756         pr_debug("set 64bit window: %d, base hi: 0x%x, base lo: 0x%x, "
 757                 "size: 0x%x, other: 0x%x\n",
 758                 window, base_hi, base_lo, size, other_bits);
 759
 760         base_lo_reg = bh->ci->window_tab_64bit[window].base_lo_reg;
 761
 762         if (base_lo_reg != 0) {
 763                 size_reg = bh->ci->window_tab_64bit[window].size_reg;
 764                 base_lo_bits = bh->ci->window_tab_64bit[window].base_lo_bits;
 765                 size_bits = bh->ci->window_tab_64bit[window].size_bits;
 766                 map_to_field = bh->ci->window_tab_64bit[window].map_to_field;
 767
 768                 mv64x60_write(bh, bh->ci->window_tab_64bit[window].base_hi_reg,
 769                         base_hi);
 770
 771                 val = map_to_field(base_lo, base_lo_bits) | other_bits;
 772                 mv64x60_write(bh, base_lo_reg, val);
 773
 774                 if (size_reg != 0) {
 775                         val = bh->ci->translate_size(base_lo, size, size_bits);
 776                         val = map_to_field(val, size_bits);
 777                         mv64x60_write(bh, size_reg, val);
 778                 }
 779
 780                 (void)mv64x60_read(bh, base_lo_reg); /* Flush FIFO */
 781         }
 782 }
 783
 784 /*
 785  * mv64x60_mask()
 786  *
 787  * Take the high-order 'num_bits' of 'val' & mask off low bits.
 788  */
 789 u32 __init
 790 mv64x60_mask(u32 val, u32 num_bits)
 791 {
 792         return val & (0xffffffff << (32 - num_bits));
 793 }
 794
 795 /*
 796  * mv64x60_shift_left()
 797  *
 798  * Take the low-order 'num_bits' of 'val', shift left to align at bit 31 (MSB).
 799  */
 800 u32 __init
 801 mv64x60_shift_left(u32 val, u32 num_bits)
 802 {
 803         return val << (32 - num_bits);
 804 }
 805
 806 /*
 807  * mv64x60_shift_right()
 808  *
 809  * Take the high-order 'num_bits' of 'val', shift right to align at bit 0 (LSB).
 810  */
 811 u32 __init
 812 mv64x60_shift_right(u32 val, u32 num_bits)
 813 {
 814         return val >> (32 - num_bits);
 815 }
 816
 817 /*
 818  *****************************************************************************
 819  *
 820  *      Chip Identification Routines
 821  *
 822  *****************************************************************************
 823  */
 824 /*
 825  * mv64x60_get_type()
 826  *
 827  * Determine the type of bridge chip we have.
 828  */
 829 int __init
 830 mv64x60_get_type(struct mv64x60_handle *bh)
 831 {
 832         struct pci_controller hose;
 833         u16     val;
 834         u8      save_exclude;
 835
 836         memset(&hose, 0, sizeof(hose));
 837         setup_indirect_pci_nomap(&hose, bh->v_base + MV64x60_PCI0_CONFIG_ADDR,
 838                 bh->v_base + MV64x60_PCI0_CONFIG_DATA);
 839
 840         save_exclude = mv64x60_pci_exclude_bridge;
 841         mv64x60_pci_exclude_bridge = 0;
 842         /* Sanity check of bridge's Vendor ID */
 843         early_read_config_word(&hose, 0, PCI_DEVFN(0, 0), PCI_VENDOR_ID, &val);
 844
 845         if (val != PCI_VENDOR_ID_MARVELL) {
 846                 mv64x60_pci_exclude_bridge = save_exclude;
 847                 return -1;
 848         }
 849
 850         /* Get the revision of the chip */
 851         early_read_config_word(&hose, 0, PCI_DEVFN(0, 0), PCI_CLASS_REVISION,
 852                 &val);
 853         bh->rev = (u32)(val & 0xff);
 854
 855         /* Figure out the type of Marvell bridge it is */
 856         early_read_config_word(&hose, 0, PCI_DEVFN(0, 0), PCI_DEVICE_ID, &val);
 857         mv64x60_pci_exclude_bridge = save_exclude;
 858
 859         switch (val) {
 860         case PCI_DEVICE_ID_MARVELL_GT64260:
 861                 switch (bh->rev) {
 862                 case GT64260_REV_A:
 863                         bh->type = MV64x60_TYPE_GT64260A;
 864                         break;
 865
 866                 default:
 867                         printk(KERN_WARNING "Unsupported GT64260 rev %04x\n",
 868                                 bh->rev);
 869                         /* Assume its similar to a 'B' rev and fallthru */
 870                 case GT64260_REV_B:
 871                         bh->type = MV64x60_TYPE_GT64260B;
 872                         break;
 873                 }
 874                 break;
 875
 876         case PCI_DEVICE_ID_MARVELL_MV64360:
 877                 /* Marvell won't tell me how to distinguish a 64361 & 64362 */
 878                 bh->type = MV64x60_TYPE_MV64360;
 879                 break;
 880
 881         case PCI_DEVICE_ID_MARVELL_MV64460:
 882                 bh->type = MV64x60_TYPE_MV64460;
 883                 break;
 884
 885         default:
 886                 printk(KERN_ERR "Unknown Marvell bridge type %04x\n", val);
 887                 return -1;
 888         }
 889
 890         /* Hang onto bridge type & rev for PIC code */
 891         mv64x60_bridge_type = bh->type;
 892         mv64x60_bridge_rev = bh->rev;
 893
 894         return 0;
 895 }
 896
 897 /*
 898  * mv64x60_setup_for_chip()
 899  *
 900  * Set 'bh' to use the proper set of routine for the bridge chip that we have.
 901  */
 902 int __init
 903 mv64x60_setup_for_chip(struct mv64x60_handle *bh)
 904 {
 905         int     rc = 0;
 906
 907         /* Set up chip-specific info based on the chip/bridge type */
 908         switch(bh->type) {
 909         case MV64x60_TYPE_GT64260A:
 910                 bh->ci = &gt64260a_ci;
 911                 break;
 912
 913         case MV64x60_TYPE_GT64260B:
 914                 bh->ci = &gt64260b_ci;
 915                 break;
 916
 917         case MV64x60_TYPE_MV64360:
 918                 bh->ci = &mv64360_ci;
 919                 break;
 920
 921         case MV64x60_TYPE_MV64460:
 922                 bh->ci = &mv64460_ci;
 923                 break;
 924
 925         case MV64x60_TYPE_INVALID:
 926         default:
 927                 if (ppc_md.progress)
 928                         ppc_md.progress("mv64x60: Unsupported bridge", 0x0);
 929                 printk(KERN_ERR "mv64x60: Unsupported bridge\n");
 930                 rc = -1;
 931         }
 932
 933         return rc;
 934 }
 935
 936 /*
 937  * mv64x60_get_bridge_vbase()
 938  *
 939  * Return the virtual address of the bridge's registers.
 940  */
 941 void *
 942 mv64x60_get_bridge_vbase(void)
 943 {
 944         return mv64x60_bridge_vbase;
 945 }
 946
 947 /*
 948  * mv64x60_get_bridge_type()
 949  *
 950  * Return the type of bridge on the platform.
 951  */
 952 u32
 953 mv64x60_get_bridge_type(void)
 954 {
 955         return mv64x60_bridge_type;
 956 }
 957
 958 /*
 959  * mv64x60_get_bridge_rev()
 960  *
 961  * Return the revision of the bridge on the platform.
 962  */
 963 u32
 964 mv64x60_get_bridge_rev(void)
 965 {
 966         return mv64x60_bridge_rev;
 967 }
 968
 969 /*
 970  *****************************************************************************
 971  *
 972  *      System Memory Window Related Routines
 973  *
 974  *****************************************************************************
 975  */
 976 /*
 977  * mv64x60_get_mem_size()
 978  *
 979  * Calculate the amount of memory that the memory controller is set up for.
 980  * This should only be used by board-specific code if there is no other
 981  * way to determine the amount of memory in the system.
 982  */
 983 u32 __init
 984 mv64x60_get_mem_size(u32 bridge_base, u32 chip_type)
 985 {
 986         struct mv64x60_handle   bh;
 987         u32     mem_windows[MV64x60_CPU2MEM_WINDOWS][2];
 988         u32     rc = 0;
 989
 990         memset(&bh, 0, sizeof(bh));
 991
 992         bh.type = chip_type;
 993         bh.v_base = (void *)bridge_base;
 994
 995         if (!mv64x60_setup_for_chip(&bh)) {
 996                 mv64x60_get_mem_windows(&bh, mem_windows);
 997                 rc = mv64x60_calc_mem_size(&bh, mem_windows);
 998         }
 999
1000         return rc;
1001 }
1002
1003 /*
1004  * mv64x60_get_mem_windows()
1005  *
1006  * Get the values in the memory controller & return in the 'mem_windows' array.
1007  */
1008 void __init
1009 mv64x60_get_mem_windows(struct mv64x60_handle *bh,
1010         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
1011 {
1012         u32     i, win;
1013
1014         for (win=MV64x60_CPU2MEM_0_WIN,i=0;win<=MV64x60_CPU2MEM_3_WIN;win++,i++)
1015                 if (bh->ci->is_enabled_32bit(bh, win))
1016                         mv64x60_get_32bit_window(bh, win,
1017                                 &mem_windows[i][0], &mem_windows[i][1]);
1018                 else {
1019                         mem_windows[i][0] = 0;
1020                         mem_windows[i][1] = 0;
1021                 }
1022 }
1023
1024 /*
1025  * mv64x60_calc_mem_size()
1026  *
1027  * Using the memory controller register values in 'mem_windows', determine
1028  * how much memory it is set up for.
1029  */
1030 u32 __init
1031 mv64x60_calc_mem_size(struct mv64x60_handle *bh,
1032         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
1033 {
1034         u32     i, total = 0;
1035
1036         for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++)
1037                 total += mem_windows[i][1];
1038
1039         return total;
1040 }
1041
1042 /*
1043  *****************************************************************************
1044  *
1045  *      CPU->System MEM, PCI Config Routines
1046  *
1047  *****************************************************************************
1048  */
1049 /*
1050  * mv64x60_config_cpu2mem_windows()
1051  *
1052  * Configure CPU->Memory windows on the bridge.
1053  */
1054 static u32 prot_tab[] __initdata = {
1055         MV64x60_CPU_PROT_0_WIN, MV64x60_CPU_PROT_1_WIN,
1056         MV64x60_CPU_PROT_2_WIN, MV64x60_CPU_PROT_3_WIN
1057 };
1058
1059 static u32 cpu_snoop_tab[] __initdata = {
1060         MV64x60_CPU_SNOOP_0_WIN, MV64x60_CPU_SNOOP_1_WIN,
1061         MV64x60_CPU_SNOOP_2_WIN, MV64x60_CPU_SNOOP_3_WIN
1062 };
1063
1064 void __init
1065 mv64x60_config_cpu2mem_windows(struct mv64x60_handle *bh,
1066         struct mv64x60_setup_info *si,
1067         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
1068 {
1069         u32     i, win;
1070
1071         /* Set CPU protection & snoop windows */
1072         for (win=MV64x60_CPU2MEM_0_WIN,i=0;win<=MV64x60_CPU2MEM_3_WIN;win++,i++)
1073                 if (bh->ci->is_enabled_32bit(bh, win)) {
1074                         mv64x60_set_32bit_window(bh, prot_tab[i],
1075                                 mem_windows[i][0], mem_windows[i][1],
1076                                 si->cpu_prot_options[i]);
1077                         bh->ci->enable_window_32bit(bh, prot_tab[i]);
1078
1079                         if (bh->ci->window_tab_32bit[cpu_snoop_tab[i]].
1080                                                                 base_reg != 0) {
1081                                 mv64x60_set_32bit_window(bh, cpu_snoop_tab[i],
1082                                         mem_windows[i][0], mem_windows[i][1],
1083                                         si->cpu_snoop_options[i]);
1084                                 bh->ci->enable_window_32bit(bh,
1085                                         cpu_snoop_tab[i]);
1086                         }
1087
1088                 }
1089 }
1090
1091 /*
1092  * mv64x60_config_cpu2pci_windows()
1093  *
1094  * Configure the CPU->PCI windows for one of the PCI buses.
1095  */
1096 static u32 win_tab[2][4] __initdata = {
1097         { MV64x60_CPU2PCI0_IO_WIN, MV64x60_CPU2PCI0_MEM_0_WIN,
1098           MV64x60_CPU2PCI0_MEM_1_WIN, MV64x60_CPU2PCI0_MEM_2_WIN },
1099         { MV64x60_CPU2PCI1_IO_WIN, MV64x60_CPU2PCI1_MEM_0_WIN,
1100           MV64x60_CPU2PCI1_MEM_1_WIN, MV64x60_CPU2PCI1_MEM_2_WIN },
1101 };
1102
1103 static u32 remap_tab[2][4] __initdata = {
1104         { MV64x60_CPU2PCI0_IO_REMAP_WIN, MV64x60_CPU2PCI0_MEM_0_REMAP_WIN,
1105           MV64x60_CPU2PCI0_MEM_1_REMAP_WIN, MV64x60_CPU2PCI0_MEM_2_REMAP_WIN },
1106         { MV64x60_CPU2PCI1_IO_REMAP_WIN, MV64x60_CPU2PCI1_MEM_0_REMAP_WIN,
1107           MV64x60_CPU2PCI1_MEM_1_REMAP_WIN, MV64x60_CPU2PCI1_MEM_2_REMAP_WIN }
1108 };
1109
1110 void __init
1111 mv64x60_config_cpu2pci_windows(struct mv64x60_handle *bh,
1112         struct mv64x60_pci_info *pi, u32 bus)
1113 {
1114         int     i;
1115
1116         if (pi->pci_io.size > 0) {
1117                 mv64x60_set_32bit_window(bh, win_tab[bus][0],
1118                         pi->pci_io.cpu_base, pi->pci_io.size, pi->pci_io.swap);
1119                 mv64x60_set_32bit_window(bh, remap_tab[bus][0],
1120                         pi->pci_io.pci_base_lo, 0, 0);
1121                 bh->ci->enable_window_32bit(bh, win_tab[bus][0]);
1122         } else /* Actually, the window should already be disabled */
1123                 bh->ci->disable_window_32bit(bh, win_tab[bus][0]);
1124
1125         for (i=0; i<3; i++)
1126                 if (pi->pci_mem[i].size > 0) {
1127                         mv64x60_set_32bit_window(bh, win_tab[bus][i+1],
1128                                 pi->pci_mem[i].cpu_base, pi->pci_mem[i].size,
1129                                 pi->pci_mem[i].swap);
1130                         mv64x60_set_64bit_window(bh, remap_tab[bus][i+1],
1131                                 pi->pci_mem[i].pci_base_hi,
1132                                 pi->pci_mem[i].pci_base_lo, 0, 0);
1133                         bh->ci->enable_window_32bit(bh, win_tab[bus][i+1]);
1134                 } else /* Actually, the window should already be disabled */
1135                         bh->ci->disable_window_32bit(bh, win_tab[bus][i+1]);
1136 }
1137
1138 /*
1139  *****************************************************************************
1140  *
1141  *      PCI->System MEM Config Routines
1142  *
1143  *****************************************************************************
1144  */
1145 /*
1146  * mv64x60_config_pci2mem_windows()
1147  *
1148  * Configure the PCI->Memory windows on the bridge.
1149  */
1150 static u32 pci_acc_tab[2][4] __initdata = {
1151         { MV64x60_PCI02MEM_ACC_CNTL_0_WIN, MV64x60_PCI02MEM_ACC_CNTL_1_WIN,
1152           MV64x60_PCI02MEM_ACC_CNTL_2_WIN, MV64x60_PCI02MEM_ACC_CNTL_3_WIN },
1153         { MV64x60_PCI12MEM_ACC_CNTL_0_WIN, MV64x60_PCI12MEM_ACC_CNTL_1_WIN,
1154           MV64x60_PCI12MEM_ACC_CNTL_2_WIN, MV64x60_PCI12MEM_ACC_CNTL_3_WIN }
1155 };
1156
1157 static u32 pci_snoop_tab[2][4] __initdata = {
1158         { MV64x60_PCI02MEM_SNOOP_0_WIN, MV64x60_PCI02MEM_SNOOP_1_WIN,
1159           MV64x60_PCI02MEM_SNOOP_2_WIN, MV64x60_PCI02MEM_SNOOP_3_WIN },
1160         { MV64x60_PCI12MEM_SNOOP_0_WIN, MV64x60_PCI12MEM_SNOOP_1_WIN,
1161           MV64x60_PCI12MEM_SNOOP_2_WIN, MV64x60_PCI12MEM_SNOOP_3_WIN }
1162 };
1163
1164 static u32 pci_size_tab[2][4] __initdata = {
1165         { MV64x60_PCI0_MEM_0_SIZE, MV64x60_PCI0_MEM_1_SIZE,
1166           MV64x60_PCI0_MEM_2_SIZE, MV64x60_PCI0_MEM_3_SIZE },
1167         { MV64x60_PCI1_MEM_0_SIZE, MV64x60_PCI1_MEM_1_SIZE,
1168           MV64x60_PCI1_MEM_2_SIZE, MV64x60_PCI1_MEM_3_SIZE }
1169 };
1170
1171 void __init
1172 mv64x60_config_pci2mem_windows(struct mv64x60_handle *bh,
1173         struct pci_controller *hose, struct mv64x60_pci_info *pi,
1174         u32 bus, u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
1175 {
1176         u32     i, win;
1177
1178         /*
1179          * Set the access control, snoop, BAR size, and window base addresses.
1180          * PCI->MEM windows base addresses will match exactly what the
1181          * CPU->MEM windows are.
1182          */
1183         for (win=MV64x60_CPU2MEM_0_WIN,i=0;win<=MV64x60_CPU2MEM_3_WIN;win++,i++)
1184                 if (bh->ci->is_enabled_32bit(bh, win)) {
1185                         mv64x60_set_64bit_window(bh,
1186                                 pci_acc_tab[bus][i], 0,
1187                                 mem_windows[i][0], mem_windows[i][1],
1188                                 pi->acc_cntl_options[i]);
1189                         bh->ci->enable_window_64bit(bh, pci_acc_tab[bus][i]);
1190
1191                         if (bh->ci->window_tab_64bit[
1192                                 pci_snoop_tab[bus][i]].base_lo_reg != 0) {
1193
1194                                 mv64x60_set_64bit_window(bh,
1195                                         pci_snoop_tab[bus][i], 0,
1196                                         mem_windows[i][0], mem_windows[i][1],
1197                                         pi->snoop_options[i]);
1198                                 bh->ci->enable_window_64bit(bh,
1199                                         pci_snoop_tab[bus][i]);
1200                         }
1201
1202                         bh->ci->set_pci2mem_window(hose, bus, i,
1203                                 mem_windows[i][0]);
1204                         mv64x60_write(bh, pci_size_tab[bus][i],
1205                                 mv64x60_mask(mem_windows[i][1] - 1, 20));
1206
1207                         /* Enable the window */
1208                         mv64x60_clr_bits(bh, ((bus == 0) ?
1209                                 MV64x60_PCI0_BAR_ENABLE :
1210                                 MV64x60_PCI1_BAR_ENABLE), (1 << i));
1211                 }
1212 }
1213
1214 /*
1215  *****************************************************************************
1216  *
1217  *      Hose & Resource Alloc/Init Routines
1218  *
1219  *****************************************************************************
1220  */
1221 /*
1222  * mv64x60_alloc_hoses()
1223  *
1224  * Allocate the PCI hose structures for the bridge's PCI buses.
1225  */
1226 void __init
1227 mv64x60_alloc_hose(struct mv64x60_handle *bh, u32 cfg_addr, u32 cfg_data,
1228         struct pci_controller **hose)
1229 {
1230         *hose = pcibios_alloc_controller();
1231         setup_indirect_pci_nomap(*hose, bh->v_base + cfg_addr,
1232                 bh->v_base + cfg_data);
1233 }
1234
1235 /*
1236  * mv64x60_config_resources()
1237  *
1238  * Calculate the offsets, etc. for the hose structures to reflect all of
1239  * the address remapping that happens as you go from CPU->PCI and PCI->MEM.
1240  */
1241 void __init
1242 mv64x60_config_resources(struct pci_controller *hose,
1243         struct mv64x60_pci_info *pi, u32 io_base)
1244 {
1245         int             i;
1246         /* 2 hoses; 4 resources/hose; string <= 64 bytes */
1247         static char     s[2][4][64];
1248
1249         if (pi->pci_io.size != 0) {
1250                 sprintf(s[hose->index][0], "PCI hose %d I/O Space",
1251                         hose->index);
1252                 pci_init_resource(&hose->io_resource, io_base - isa_io_base,
1253                         io_base - isa_io_base + pi->pci_io.size - 1,
1254                         IORESOURCE_IO, s[hose->index][0]);
1255                 hose->io_space.start = pi->pci_io.pci_base_lo;
1256                 hose->io_space.end = pi->pci_io.pci_base_lo + pi->pci_io.size-1;
1257                 hose->io_base_phys = pi->pci_io.cpu_base;
1258                 hose->io_base_virt = (void *)isa_io_base;
1259         }
1260
1261         for (i=0; i<3; i++)
1262                 if (pi->pci_mem[i].size != 0) {
1263                         sprintf(s[hose->index][i+1], "PCI hose %d MEM Space %d",
1264                                 hose->index, i);
1265                         pci_init_resource(&hose->mem_resources[i],
1266                                 pi->pci_mem[i].cpu_base,
1267                                 pi->pci_mem[i].cpu_base + pi->pci_mem[i].size-1,
1268                                 IORESOURCE_MEM, s[hose->index][i+1]);
1269                 }
1270
1271         hose->mem_space.end = pi->pci_mem[0].pci_base_lo +
1272                                                 pi->pci_mem[0].size - 1;
1273         hose->pci_mem_offset = pi->pci_mem[0].cpu_base -
1274                                                 pi->pci_mem[0].pci_base_lo;
1275 }
1276
1277 /*
1278  * mv64x60_config_pci_params()
1279  *
1280  * Configure a hose's PCI config space parameters.
1281  */
1282 void __init
1283 mv64x60_config_pci_params(struct pci_controller *hose,
1284         struct mv64x60_pci_info *pi)
1285 {
1286         u32     devfn;
1287         u16     u16_val;
1288         u8      save_exclude;
1289
1290         devfn = PCI_DEVFN(0,0);
1291
1292         save_exclude = mv64x60_pci_exclude_bridge;
1293         mv64x60_pci_exclude_bridge = 0;
1294
1295         /* Set class code to indicate host bridge */
1296         u16_val = PCI_CLASS_BRIDGE_HOST; /* 0x0600 (host bridge) */
1297         early_write_config_word(hose, 0, devfn, PCI_CLASS_DEVICE, u16_val);
1298
1299         /* Enable bridge to be PCI master & respond to PCI MEM cycles */
1300         early_read_config_word(hose, 0, devfn, PCI_COMMAND, &u16_val);
1301         u16_val &= ~(PCI_COMMAND_IO | PCI_COMMAND_INVALIDATE |
1302                 PCI_COMMAND_PARITY | PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK);
1303         u16_val |= pi->pci_cmd_bits | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
1304         early_write_config_word(hose, 0, devfn, PCI_COMMAND, u16_val);
1305
1306         /* Set latency timer, cache line size, clear BIST */
1307         u16_val = (pi->latency_timer << 8) | (L1_CACHE_LINE_SIZE >> 2);
1308         early_write_config_word(hose, 0, devfn, PCI_CACHE_LINE_SIZE, u16_val);
1309
1310         mv64x60_pci_exclude_bridge = save_exclude;
1311 }
1312
1313 /*
1314  *****************************************************************************
1315  *
1316  *      PCI Related Routine
1317  *
1318  *****************************************************************************
1319  */
1320 /*
1321  * mv64x60_set_bus()
1322  *
1323  * Set the bus number for the hose directly under the bridge.
1324  */
1325 void __init
1326 mv64x60_set_bus(struct mv64x60_handle *bh, u32 bus, u32 child_bus)
1327 {
1328         struct pci_controller   *hose;
1329         u32     pci_mode, p2p_cfg, pci_cfg_offset, val;
1330         u8      save_exclude;
1331
1332         if (bus == 0) {
1333                 pci_mode = bh->pci_mode_a;
1334                 p2p_cfg = MV64x60_PCI0_P2P_CONFIG;
1335                 pci_cfg_offset = 0x64;
1336                 hose = bh->hose_a;
1337         } else {
1338                 pci_mode = bh->pci_mode_b;
1339                 p2p_cfg = MV64x60_PCI1_P2P_CONFIG;
1340                 pci_cfg_offset = 0xe4;
1341                 hose = bh->hose_b;
1342         }
1343
1344         child_bus &= 0xff;
1345         val = mv64x60_read(bh, p2p_cfg);
1346
1347         if (pci_mode == MV64x60_PCIMODE_CONVENTIONAL) {
1348                 val &= 0xe0000000; /* Force dev num to 0, turn off P2P bridge */
1349                 val |= (child_bus << 16) | 0xff;
1350                 mv64x60_write(bh, p2p_cfg, val);
1351                 (void)mv64x60_read(bh, p2p_cfg); /* Flush FIFO */
1352         } else { /* PCI-X */
1353                 /*
1354                  * Need to use the current bus/dev number (that's in the
1355                  * P2P CONFIG reg) to access the bridge's pci config space.
1356                  */
1357                 save_exclude = mv64x60_pci_exclude_bridge;
1358                 mv64x60_pci_exclude_bridge = 0;
1359                 early_write_config_dword(hose, (val & 0x00ff0000) >> 16,
1360                         PCI_DEVFN(((val & 0x1f000000) >> 24), 0),
1361                         pci_cfg_offset, child_bus << 8);
1362                 mv64x60_pci_exclude_bridge = save_exclude;
1363         }
1364 }
1365
1366 /*
1367  * mv64x60_pci_exclude_device()
1368  *
1369  * This routine is used to make the bridge not appear when the
1370  * PCI subsystem is accessing PCI devices (in PCI config space).
1371  */
1372 int
1373 mv64x60_pci_exclude_device(u8 bus, u8 devfn)
1374 {
1375         struct pci_controller   *hose;
1376
1377         hose = pci_bus_to_hose(bus);
1378
1379         /* Skip slot 0 on both hoses */
1380         if ((mv64x60_pci_exclude_bridge == 1) && (PCI_SLOT(devfn) == 0) &&
1381                 (hose->first_busno == bus))
1382
1383                 return PCIBIOS_DEVICE_NOT_FOUND;
1384         else
1385                 return PCIBIOS_SUCCESSFUL;
1386 } /* mv64x60_pci_exclude_device() */
1387
1388 /*
1389  *****************************************************************************
1390  *
1391  *      Platform Device Routines
1392  *
1393  *****************************************************************************
1394  */
1395
1396 /*
1397  * mv64x60_pd_fixup()
1398  *
1399  * Need to add the base addr of where the bridge's regs are mapped in the
1400  * physical addr space so drivers can ioremap() them.
1401  */
1402 void __init
1403 mv64x60_pd_fixup(struct mv64x60_handle *bh, struct platform_device *pd_devs[],
1404         u32 entries)
1405 {
1406         struct resource *r;
1407         u32             i, j;
1408
1409         for (i=0; i<entries; i++) {
1410                 j = 0;
1411
1412                 while ((r = platform_get_resource(pd_devs[i],IORESOURCE_MEM,j))
1413                         != NULL) {
1414
1415                         r->start += bh->p_base;
1416                         r->end += bh->p_base;
1417                         j++;
1418                 }
1419         }
1420 }
1421
1422 /*
1423  * mv64x60_add_pds()
1424  *
1425  * Add the mv64x60 platform devices to the list of platform devices.
1426  */
1427 static int __init
1428 mv64x60_add_pds(void)
1429 {
1430         return platform_add_devices(mv64x60_pd_devs,
1431                 ARRAY_SIZE(mv64x60_pd_devs));
1432 }
1433 arch_initcall(mv64x60_add_pds);
1434
1435 /*
1436  *****************************************************************************
1437  *
1438  *      GT64260-Specific Routines
1439  *
1440  *****************************************************************************
1441  */
1442 /*
1443  * gt64260_translate_size()
1444  *
1445  * On the GT64260, the size register is really the "top" address of the window.
1446  */
1447 static u32 __init
1448 gt64260_translate_size(u32 base, u32 size, u32 num_bits)
1449 {
1450         return base + mv64x60_mask(size - 1, num_bits);
1451 }
1452
1453 /*
1454  * gt64260_untranslate_size()
1455  *
1456  * Translate the top address of a window into a window size.
1457  */
1458 static u32 __init
1459 gt64260_untranslate_size(u32 base, u32 size, u32 num_bits)
1460 {
1461         if (size >= base)
1462                 size = size - base + (1 << (32 - num_bits));
1463         else
1464                 size = 0;
1465
1466         return size;
1467 }
1468
1469 /*
1470  * gt64260_set_pci2mem_window()
1471  *
1472  * The PCI->MEM window registers are actually in PCI config space so need
1473  * to set them by setting the correct config space BARs.
1474  */
1475 static u32 gt64260_reg_addrs[2][4] __initdata = {
1476         { 0x10, 0x14, 0x18, 0x1c }, { 0x90, 0x94, 0x98, 0x9c }
1477 };
1478
1479 static void __init
1480 gt64260_set_pci2mem_window(struct pci_controller *hose, u32 bus, u32 window,
1481         u32 base)
1482 {
1483         u8      save_exclude;
1484
1485         pr_debug("set pci->mem window: %d, hose: %d, base: 0x%x\n", window,
1486                 hose->index, base);
1487
1488         save_exclude = mv64x60_pci_exclude_bridge;
1489         mv64x60_pci_exclude_bridge = 0;
1490         early_write_config_dword(hose, 0, PCI_DEVFN(0, 0),
1491                 gt64260_reg_addrs[bus][window], mv64x60_mask(base, 20) | 0x8);
1492         mv64x60_pci_exclude_bridge = save_exclude;
1493 }
1494
1495 /*
1496  * gt64260_set_pci2regs_window()
1497  *
1498  * Set where the bridge's registers appear in PCI MEM space.
1499  */
1500 static u32 gt64260_offset[2] __initdata = {0x20, 0xa0};
1501
1502 static void __init
1503 gt64260_set_pci2regs_window(struct mv64x60_handle *bh,
1504         struct pci_controller *hose, u32 bus, u32 base)
1505 {
1506         u8      save_exclude;
1507
1508         pr_debug("set pci->internal regs hose: %d, base: 0x%x\n", hose->index,
1509                 base);
1510
1511         save_exclude = mv64x60_pci_exclude_bridge;
1512         mv64x60_pci_exclude_bridge = 0;
1513         early_write_config_dword(hose, 0, PCI_DEVFN(0,0), gt64260_offset[bus],
1514                 (base << 16));
1515         mv64x60_pci_exclude_bridge = save_exclude;
1516 }
1517
1518 /*
1519  * gt64260_is_enabled_32bit()
1520  *
1521  * On a GT64260, a window is enabled iff its top address is >= to its base
1522  * address.
1523  */
1524 static u32 __init
1525 gt64260_is_enabled_32bit(struct mv64x60_handle *bh, u32 window)
1526 {
1527         u32     rc = 0;
1528
1529         if ((gt64260_32bit_windows[window].base_reg != 0) &&
1530                 (gt64260_32bit_windows[window].size_reg != 0) &&
1531                 ((mv64x60_read(bh, gt64260_32bit_windows[window].size_reg) &
1532                         ((1 << gt64260_32bit_windows[window].size_bits) - 1)) >=
1533                  (mv64x60_read(bh, gt64260_32bit_windows[window].base_reg) &
1534                         ((1 << gt64260_32bit_windows[window].base_bits) - 1))))
1535
1536                 rc = 1;
1537
1538         return rc;
1539 }
1540
1541 /*
1542  * gt64260_enable_window_32bit()
1543  *
1544  * On the GT64260, a window is enabled iff the top address is >= to the base
1545  * address of the window.  Since the window has already been configured by
1546  * the time this routine is called, we have nothing to do here.
1547  */
1548 static void __init
1549 gt64260_enable_window_32bit(struct mv64x60_handle *bh, u32 window)
1550 {
1551         pr_debug("enable 32bit window: %d\n", window);
1552 }
1553
1554 /*
1555  * gt64260_disable_window_32bit()
1556  *
1557  * On a GT64260, you disable a window by setting its top address to be less
1558  * than its base address.
1559  */
1560 static void __init
1561 gt64260_disable_window_32bit(struct mv64x60_handle *bh, u32 window)
1562 {
1563         pr_debug("disable 32bit window: %d, base_reg: 0x%x, size_reg: 0x%x\n",
1564                 window, gt64260_32bit_windows[window].base_reg,
1565                 gt64260_32bit_windows[window].size_reg);
1566
1567         if ((gt64260_32bit_windows[window].base_reg != 0) &&
1568                 (gt64260_32bit_windows[window].size_reg != 0)) {
1569
1570                 /* To disable, make bottom reg higher than top reg */
1571                 mv64x60_write(bh, gt64260_32bit_windows[window].base_reg,0xfff);
1572                 mv64x60_write(bh, gt64260_32bit_windows[window].size_reg, 0);
1573         }
1574 }
1575
1576 /*
1577  * gt64260_enable_window_64bit()
1578  *
1579  * On the GT64260, a window is enabled iff the top address is >= to the base
1580  * address of the window.  Since the window has already been configured by
1581  * the time this routine is called, we have nothing to do here.
1582  */
1583 static void __init
1584 gt64260_enable_window_64bit(struct mv64x60_handle *bh, u32 window)
1585 {
1586         pr_debug("enable 64bit window: %d\n", window);
1587 }
1588
1589 /*
1590  * gt64260_disable_window_64bit()
1591  *
1592  * On a GT64260, you disable a window by setting its top address to be less
1593  * than its base address.
1594  */
1595 static void __init
1596 gt64260_disable_window_64bit(struct mv64x60_handle *bh, u32 window)
1597 {
1598         pr_debug("disable 64bit window: %d, base_reg: 0x%x, size_reg: 0x%x\n",
1599                 window, gt64260_64bit_windows[window].base_lo_reg,
1600                 gt64260_64bit_windows[window].size_reg);
1601
1602         if ((gt64260_64bit_windows[window].base_lo_reg != 0) &&
1603                 (gt64260_64bit_windows[window].size_reg != 0)) {
1604
1605                 /* To disable, make bottom reg higher than top reg */
1606                 mv64x60_write(bh, gt64260_64bit_windows[window].base_lo_reg,
1607                                                                         0xfff);
1608                 mv64x60_write(bh, gt64260_64bit_windows[window].base_hi_reg, 0);
1609                 mv64x60_write(bh, gt64260_64bit_windows[window].size_reg, 0);
1610         }
1611 }
1612
1613 /*
1614  * gt64260_disable_all_windows()
1615  *
1616  * The GT64260 has several windows that aren't represented in the table of
1617  * windows at the top of this file.  This routine turns all of them off
1618  * except for the memory controller windows, of course.
1619  */
1620 static void __init
1621 gt64260_disable_all_windows(struct mv64x60_handle *bh,
1622         struct mv64x60_setup_info *si)
1623 {
1624         u32     i, preserve;
1625
1626         /* Disable 32bit windows (don't disable cpu->mem windows) */
1627         for (i=MV64x60_CPU2DEV_0_WIN; i<MV64x60_32BIT_WIN_COUNT; i++) {
1628                 if (i < 32)
1629                         preserve = si->window_preserve_mask_32_lo & (1 << i);
1630                 else
1631                         preserve = si->window_preserve_mask_32_hi & (1<<(i-32));
1632
1633                 if (!preserve)
1634                         gt64260_disable_window_32bit(bh, i);
1635         }
1636
1637         /* Disable 64bit windows */
1638         for (i=0; i<MV64x60_64BIT_WIN_COUNT; i++)
1639                 if (!(si->window_preserve_mask_64 & (1<<i)))
1640                         gt64260_disable_window_64bit(bh, i);
1641
1642         /* Turn off cpu protection windows not in gt64260_32bit_windows[] */
1643         mv64x60_write(bh, GT64260_CPU_PROT_BASE_4, 0xfff);
1644         mv64x60_write(bh, GT64260_CPU_PROT_SIZE_4, 0);
1645         mv64x60_write(bh, GT64260_CPU_PROT_BASE_5, 0xfff);
1646         mv64x60_write(bh, GT64260_CPU_PROT_SIZE_5, 0);
1647         mv64x60_write(bh, GT64260_CPU_PROT_BASE_6, 0xfff);
1648         mv64x60_write(bh, GT64260_CPU_PROT_SIZE_6, 0);
1649         mv64x60_write(bh, GT64260_CPU_PROT_BASE_7, 0xfff);
1650         mv64x60_write(bh, GT64260_CPU_PROT_SIZE_7, 0);
1651
1652         /* Turn off PCI->MEM access cntl wins not in gt64260_64bit_windows[] */
1653         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_4_BASE_LO, 0xfff);
1654         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_4_BASE_HI, 0);
1655         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_4_SIZE, 0);
1656         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_5_BASE_LO, 0xfff);
1657         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_5_BASE_HI, 0);
1658         mv64x60_write(bh, MV64x60_PCI0_ACC_CNTL_5_SIZE, 0);
1659         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_6_BASE_LO, 0xfff);
1660         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_6_BASE_HI, 0);
1661         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_6_SIZE, 0);
1662         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_7_BASE_LO, 0xfff);
1663         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_7_BASE_HI, 0);
1664         mv64x60_write(bh, GT64260_PCI0_ACC_CNTL_7_SIZE, 0);
1665
1666         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_4_BASE_LO, 0xfff);
1667         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_4_BASE_HI, 0);
1668         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_4_SIZE, 0);
1669         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_5_BASE_LO, 0xfff);
1670         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_5_BASE_HI, 0);
1671         mv64x60_write(bh, MV64x60_PCI1_ACC_CNTL_5_SIZE, 0);
1672         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_6_BASE_LO, 0xfff);
1673         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_6_BASE_HI, 0);
1674         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_6_SIZE, 0);
1675         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_7_BASE_LO, 0xfff);
1676         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_7_BASE_HI, 0);
1677         mv64x60_write(bh, GT64260_PCI1_ACC_CNTL_7_SIZE, 0);
1678
1679         /* Disable all PCI-><whatever> windows */
1680         mv64x60_set_bits(bh, MV64x60_PCI0_BAR_ENABLE, 0x07fffdff);
1681         mv64x60_set_bits(bh, MV64x60_PCI1_BAR_ENABLE, 0x07fffdff);
1682
1683         /*
1684          * Some firmwares enable a bunch of intr sources
1685          * for the PCI INT output pins.
1686          */
1687         mv64x60_write(bh, GT64260_IC_CPU_INTR_MASK_LO, 0);
1688         mv64x60_write(bh, GT64260_IC_CPU_INTR_MASK_HI, 0);
1689         mv64x60_write(bh, GT64260_IC_PCI0_INTR_MASK_LO, 0);
1690         mv64x60_write(bh, GT64260_IC_PCI0_INTR_MASK_HI, 0);
1691         mv64x60_write(bh, GT64260_IC_PCI1_INTR_MASK_LO, 0);
1692         mv64x60_write(bh, GT64260_IC_PCI1_INTR_MASK_HI, 0);
1693         mv64x60_write(bh, GT64260_IC_CPU_INT_0_MASK, 0);
1694         mv64x60_write(bh, GT64260_IC_CPU_INT_1_MASK, 0);
1695         mv64x60_write(bh, GT64260_IC_CPU_INT_2_MASK, 0);
1696         mv64x60_write(bh, GT64260_IC_CPU_INT_3_MASK, 0);
1697 }
1698
1699 /*
1700  * gt64260a_chip_specific_init()
1701  *
1702  * Implement errata work arounds for the GT64260A.
1703  */
1704 static void __init
1705 gt64260a_chip_specific_init(struct mv64x60_handle *bh,
1706         struct mv64x60_setup_info *si)
1707 {
1708 #ifdef CONFIG_SERIAL_MPSC
1709         struct resource *r;
1710 #endif
1711 #if !defined(CONFIG_NOT_COHERENT_CACHE)
1712         u32     val;
1713         u8      save_exclude;
1714 #endif
1715
1716         if (si->pci_0.enable_bus)
1717                 mv64x60_set_bits(bh, MV64x60_PCI0_CMD,
1718                         ((1<<4) | (1<<5) | (1<<9) | (1<<13)));
1719
1720         if (si->pci_1.enable_bus)
1721                 mv64x60_set_bits(bh, MV64x60_PCI1_CMD,
1722                         ((1<<4) | (1<<5) | (1<<9) | (1<<13)));
1723
1724         /*
1725          * Dave Wilhardt found that bit 4 in the PCI Command registers must
1726          * be set if you are using cache coherency.
1727          */
1728 #if !defined(CONFIG_NOT_COHERENT_CACHE)
1729         /* Res #MEM-4 -- cpu read buffer to buffer 1 */
1730         if ((mv64x60_read(bh, MV64x60_CPU_MODE) & 0xf0) == 0x40)
1731                 mv64x60_set_bits(bh, GT64260_SDRAM_CONFIG, (1<<26));
1732
1733         save_exclude = mv64x60_pci_exclude_bridge;
1734         mv64x60_pci_exclude_bridge = 0;
1735         if (si->pci_0.enable_bus) {
1736                 early_read_config_dword(bh->hose_a, 0, PCI_DEVFN(0,0),
1737                         PCI_COMMAND, &val);
1738                 val |= PCI_COMMAND_INVALIDATE;
1739                 early_write_config_dword(bh->hose_a, 0, PCI_DEVFN(0,0),
1740                         PCI_COMMAND, val);
1741         }
1742
1743         if (si->pci_1.enable_bus) {
1744                 early_read_config_dword(bh->hose_b, 0, PCI_DEVFN(0,0),
1745                         PCI_COMMAND, &val);
1746                 val |= PCI_COMMAND_INVALIDATE;
1747                 early_write_config_dword(bh->hose_b, 0, PCI_DEVFN(0,0),
1748                         PCI_COMMAND, val);
1749         }
1750         mv64x60_pci_exclude_bridge = save_exclude;
1751 #endif
1752
1753         /* Disable buffer/descriptor snooping */
1754         mv64x60_clr_bits(bh, 0xf280, (1<< 6) | (1<<14) | (1<<22) | (1<<30));
1755         mv64x60_clr_bits(bh, 0xf2c0, (1<< 6) | (1<<14) | (1<<22) | (1<<30));
1756
1757 #ifdef CONFIG_SERIAL_MPSC
1758         mv64x60_mpsc0_pdata.mirror_regs = 1;
1759         mv64x60_mpsc0_pdata.cache_mgmt = 1;
1760         mv64x60_mpsc1_pdata.mirror_regs = 1;
1761         mv64x60_mpsc1_pdata.cache_mgmt = 1;
1762
1763         if ((r = platform_get_resource(&mpsc1_device, IORESOURCE_IRQ, 0))
1764                         != NULL) {
1765                 r->start = MV64x60_IRQ_SDMA_0;
1766                 r->end = MV64x60_IRQ_SDMA_0;
1767         }
1768 #endif
1769 }
1770
1771 /*
1772  * gt64260b_chip_specific_init()
1773  *
1774  * Implement errata work arounds for the GT64260B.
1775  */
1776 static void __init
1777 gt64260b_chip_specific_init(struct mv64x60_handle *bh,
1778         struct mv64x60_setup_info *si)
1779 {
1780 #ifdef CONFIG_SERIAL_MPSC
1781         struct resource *r;
1782 #endif
1783 #if !defined(CONFIG_NOT_COHERENT_CACHE)
1784         u32     val;
1785         u8      save_exclude;
1786 #endif
1787
1788         if (si->pci_0.enable_bus)
1789                 mv64x60_set_bits(bh, MV64x60_PCI0_CMD,
1790                         ((1<<4) | (1<<5) | (1<<9) | (1<<13)));
1791
1792         if (si->pci_1.enable_bus)
1793                 mv64x60_set_bits(bh, MV64x60_PCI1_CMD,
1794                         ((1<<4) | (1<<5) | (1<<9) | (1<<13)));
1795
1796         /*
1797          * Dave Wilhardt found that bit 4 in the PCI Command registers must
1798          * be set if you are using cache coherency.
1799          */
1800 #if !defined(CONFIG_NOT_COHERENT_CACHE)
1801         mv64x60_set_bits(bh, GT64260_CPU_WB_PRIORITY_BUFFER_DEPTH, 0xf);
1802
1803         /* Res #MEM-4 -- cpu read buffer to buffer 1 */
1804         if ((mv64x60_read(bh, MV64x60_CPU_MODE) & 0xf0) == 0x40)
1805                 mv64x60_set_bits(bh, GT64260_SDRAM_CONFIG, (1<<26));
1806
1807         save_exclude = mv64x60_pci_exclude_bridge;
1808         mv64x60_pci_exclude_bridge = 0;
1809         if (si->pci_0.enable_bus) {
1810                 early_read_config_dword(bh->hose_a, 0, PCI_DEVFN(0,0),
1811                         PCI_COMMAND, &val);
1812                 val |= PCI_COMMAND_INVALIDATE;
1813                 early_write_config_dword(bh->hose_a, 0, PCI_DEVFN(0,0),
1814                         PCI_COMMAND, val);
1815         }
1816
1817         if (si->pci_1.enable_bus) {
1818                 early_read_config_dword(bh->hose_b, 0, PCI_DEVFN(0,0),
1819                         PCI_COMMAND, &val);
1820                 val |= PCI_COMMAND_INVALIDATE;
1821                 early_write_config_dword(bh->hose_b, 0, PCI_DEVFN(0,0),
1822                         PCI_COMMAND, val);
1823         }
1824         mv64x60_pci_exclude_bridge = save_exclude;
1825 #endif
1826
1827         /* Disable buffer/descriptor snooping */
1828         mv64x60_clr_bits(bh, 0xf280, (1<< 6) | (1<<14) | (1<<22) | (1<<30));
1829         mv64x60_clr_bits(bh, 0xf2c0, (1<< 6) | (1<<14) | (1<<22) | (1<<30));
1830
1831 #ifdef CONFIG_SERIAL_MPSC
1832         /*
1833          * The 64260B is not supposed to have the bug where the MPSC & ENET
1834          * can't access cache coherent regions.  However, testing has shown
1835          * that the MPSC, at least, still has this bug.
1836          */
1837         mv64x60_mpsc0_pdata.cache_mgmt = 1;
1838         mv64x60_mpsc1_pdata.cache_mgmt = 1;
1839
1840         if ((r = platform_get_resource(&mpsc1_device, IORESOURCE_IRQ, 0))
1841                         != NULL) {
1842                 r->start = MV64x60_IRQ_SDMA_0;
1843                 r->end = MV64x60_IRQ_SDMA_0;
1844         }
1845 #endif
1846 }
1847
1848 /*
1849  *****************************************************************************
1850  *
1851  *      MV64360-Specific Routines
1852  *
1853  *****************************************************************************
1854  */
1855 /*
1856  * mv64360_translate_size()
1857  *
1858  * On the MV64360, the size register is set similar to the size you get
1859  * from a pci config space BAR register.  That is, programmed from LSB to MSB
1860  * as a sequence of 1's followed by a sequence of 0's. IOW, "size -1" with the
1861  * assumption that the size is a power of 2.
1862  */
1863 static u32 __init
1864 mv64360_translate_size(u32 base_addr, u32 size, u32 num_bits)
1865 {
1866         return mv64x60_mask(size - 1, num_bits);
1867 }
1868
1869 /*
1870  * mv64360_untranslate_size()
1871  *
1872  * Translate the size register value of a window into a window size.
1873  */
1874 static u32 __init
1875 mv64360_untranslate_size(u32 base_addr, u32 size, u32 num_bits)
1876 {
1877         if (size > 0) {
1878                 size >>= (32 - num_bits);
1879                 size++;
1880                 size <<= (32 - num_bits);
1881         }
1882
1883         return size;
1884 }
1885
1886 /*
1887  * mv64360_set_pci2mem_window()
1888  *
1889  * The PCI->MEM window registers are actually in PCI config space so need
1890  * to set them by setting the correct config space BARs.
1891  */
1892 struct {
1893         u32     fcn;
1894         u32     base_hi_bar;
1895         u32     base_lo_bar;
1896 } static mv64360_reg_addrs[2][4] __initdata = {
1897         {{ 0, 0x14, 0x10 }, { 0, 0x1c, 0x18 },
1898          { 1, 0x14, 0x10 }, { 1, 0x1c, 0x18 }},
1899         {{ 0, 0x94, 0x90 }, { 0, 0x9c, 0x98 },
1900          { 1, 0x94, 0x90 }, { 1, 0x9c, 0x98 }}
1901 };
1902
1903 static void __init
1904 mv64360_set_pci2mem_window(struct pci_controller *hose, u32 bus, u32 window,
1905         u32 base)
1906 {
1907         u8 save_exclude;
1908
1909         pr_debug("set pci->mem window: %d, hose: %d, base: 0x%x\n", window,
1910                 hose->index, base);
1911
1912         save_exclude = mv64x60_pci_exclude_bridge;
1913         mv64x60_pci_exclude_bridge = 0;
1914         early_write_config_dword(hose, 0,
1915                 PCI_DEVFN(0, mv64360_reg_addrs[bus][window].fcn),
1916                 mv64360_reg_addrs[bus][window].base_hi_bar, 0);
1917         early_write_config_dword(hose, 0,
1918                 PCI_DEVFN(0, mv64360_reg_addrs[bus][window].fcn),
1919                 mv64360_reg_addrs[bus][window].base_lo_bar,
1920                 mv64x60_mask(base,20) | 0xc);
1921         mv64x60_pci_exclude_bridge = save_exclude;
1922 }
1923
1924 /*
1925  * mv64360_set_pci2regs_window()
1926  *
1927  * Set where the bridge's registers appear in PCI MEM space.
1928  */
1929 static u32 mv64360_offset[2][2] __initdata = {{0x20, 0x24}, {0xa0, 0xa4}};
1930
1931 static void __init
1932 mv64360_set_pci2regs_window(struct mv64x60_handle *bh,
1933         struct pci_controller *hose, u32 bus, u32 base)
1934 {
1935         u8      save_exclude;
1936
1937         pr_debug("set pci->internal regs hose: %d, base: 0x%x\n", hose->index,
1938                 base);
1939
1940         save_exclude = mv64x60_pci_exclude_bridge;
1941         mv64x60_pci_exclude_bridge = 0;
1942         early_write_config_dword(hose, 0, PCI_DEVFN(0,0),
1943                 mv64360_offset[bus][0], (base << 16));
1944         early_write_config_dword(hose, 0, PCI_DEVFN(0,0),
1945                 mv64360_offset[bus][1], 0);
1946         mv64x60_pci_exclude_bridge = save_exclude;
1947 }
1948
1949 /*
1950  * mv64360_is_enabled_32bit()
1951  *
1952  * On a MV64360, a window is enabled by either clearing a bit in the
1953  * CPU BAR Enable reg or setting a bit in the window's base reg.
1954  * Note that this doesn't work for windows on the PCI slave side but we don't
1955  * check those so its okay.
1956  */
1957 static u32 __init
1958 mv64360_is_enabled_32bit(struct mv64x60_handle *bh, u32 window)
1959 {
1960         u32     extra, rc = 0;
1961
1962         if (((mv64360_32bit_windows[window].base_reg != 0) &&
1963                 (mv64360_32bit_windows[window].size_reg != 0)) ||
1964                 (window == MV64x60_CPU2SRAM_WIN)) {
1965
1966                 extra = mv64360_32bit_windows[window].extra;
1967
1968                 switch (extra & MV64x60_EXTRA_MASK) {
1969                 case MV64x60_EXTRA_CPUWIN_ENAB:
1970                         rc = (mv64x60_read(bh, MV64360_CPU_BAR_ENABLE) &
1971                                 (1 << (extra & 0x1f))) == 0;
1972                         break;
1973
1974                 case MV64x60_EXTRA_CPUPROT_ENAB:
1975                         rc = (mv64x60_read(bh,
1976                                 mv64360_32bit_windows[window].base_reg) &
1977                                         (1 << (extra & 0x1f))) != 0;
1978                         break;
1979
1980                 case MV64x60_EXTRA_ENET_ENAB:
1981                         rc = (mv64x60_read(bh, MV64360_ENET2MEM_BAR_ENABLE) &
1982                                 (1 << (extra & 0x7))) == 0;
1983                         break;
1984
1985                 case MV64x60_EXTRA_MPSC_ENAB:
1986                         rc = (mv64x60_read(bh, MV64360_MPSC2MEM_BAR_ENABLE) &
1987                                 (1 << (extra & 0x3))) == 0;
1988                         break;
1989
1990                 case MV64x60_EXTRA_IDMA_ENAB:
1991                         rc = (mv64x60_read(bh, MV64360_IDMA2MEM_BAR_ENABLE) &
1992                                 (1 << (extra & 0x7))) == 0;
1993                         break;
1994
1995                 default:
1996                         printk(KERN_ERR "mv64360_is_enabled: %s\n",
1997                                 "32bit table corrupted");
1998                 }
1999         }
2000
2001         return rc;
2002 }
2003
2004 /*
2005  * mv64360_enable_window_32bit()
2006  *
2007  * On a MV64360, a window is enabled by either clearing a bit in the
2008  * CPU BAR Enable reg or setting a bit in the window's base reg.
2009  */
2010 static void __init
2011 mv64360_enable_window_32bit(struct mv64x60_handle *bh, u32 window)
2012 {
2013         u32     extra;
2014
2015         pr_debug("enable 32bit window: %d\n", window);
2016
2017         if (((mv64360_32bit_windows[window].base_reg != 0) &&
2018                 (mv64360_32bit_windows[window].size_reg != 0)) ||
2019                 (window == MV64x60_CPU2SRAM_WIN)) {
2020
2021                 extra = mv64360_32bit_windows[window].extra;
2022
2023                 switch (extra & MV64x60_EXTRA_MASK) {
2024                 case MV64x60_EXTRA_CPUWIN_ENAB:
2025                         mv64x60_clr_bits(bh, MV64360_CPU_BAR_ENABLE,
2026                                 (1 << (extra & 0x1f)));
2027                         break;
2028
2029                 case MV64x60_EXTRA_CPUPROT_ENAB:
2030                         mv64x60_set_bits(bh,
2031                                 mv64360_32bit_windows[window].base_reg,
2032                                 (1 << (extra & 0x1f)));
2033                         break;
2034
2035                 case MV64x60_EXTRA_ENET_ENAB:
2036                         mv64x60_clr_bits(bh, MV64360_ENET2MEM_BAR_ENABLE,
2037                                 (1 << (extra & 0x7)));
2038                         break;
2039
2040                 case MV64x60_EXTRA_MPSC_ENAB:
2041                         mv64x60_clr_bits(bh, MV64360_MPSC2MEM_BAR_ENABLE,
2042                                 (1 << (extra & 0x3)));
2043                         break;
2044
2045                 case MV64x60_EXTRA_IDMA_ENAB:
2046                         mv64x60_clr_bits(bh, MV64360_IDMA2MEM_BAR_ENABLE,
2047                                 (1 << (extra & 0x7)));
2048                         break;
2049
2050                 default:
2051                         printk(KERN_ERR "mv64360_enable: %s\n",
2052                                 "32bit table corrupted");
2053                 }
2054         }
2055 }
2056
2057 /*
2058  * mv64360_disable_window_32bit()
2059  *
2060  * On a MV64360, a window is disabled by either setting a bit in the
2061  * CPU BAR Enable reg or clearing a bit in the window's base reg.
2062  */
2063 static void __init
2064 mv64360_disable_window_32bit(struct mv64x60_handle *bh, u32 window)
2065 {
2066         u32     extra;
2067
2068         pr_debug("disable 32bit window: %d, base_reg: 0x%x, size_reg: 0x%x\n",
2069                 window, mv64360_32bit_windows[window].base_reg,
2070                 mv64360_32bit_windows[window].size_reg);
2071
2072         if (((mv64360_32bit_windows[window].base_reg != 0) &&
2073                 (mv64360_32bit_windows[window].size_reg != 0)) ||
2074                 (window == MV64x60_CPU2SRAM_WIN)) {
2075
2076                 extra = mv64360_32bit_windows[window].extra;
2077
2078                 switch (extra & MV64x60_EXTRA_MASK) {
2079                 case MV64x60_EXTRA_CPUWIN_ENAB:
2080                         mv64x60_set_bits(bh, MV64360_CPU_BAR_ENABLE,
2081                                 (1 << (extra & 0x1f)));
2082                         break;
2083
2084                 case MV64x60_EXTRA_CPUPROT_ENAB:
2085                         mv64x60_clr_bits(bh,
2086                                 mv64360_32bit_windows[window].base_reg,
2087                                 (1 << (extra & 0x1f)));
2088                         break;
2089
2090                 case MV64x60_EXTRA_ENET_ENAB:
2091                         mv64x60_set_bits(bh, MV64360_ENET2MEM_BAR_ENABLE,
2092                                 (1 << (extra & 0x7)));
2093                         break;
2094
2095                 case MV64x60_EXTRA_MPSC_ENAB:
2096                         mv64x60_set_bits(bh, MV64360_MPSC2MEM_BAR_ENABLE,
2097                                 (1 << (extra & 0x3)));
2098                         break;
2099
2100                 case MV64x60_EXTRA_IDMA_ENAB:
2101                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_BAR_ENABLE,
2102                                 (1 << (extra & 0x7)));
2103                         break;
2104
2105                 default:
2106                         printk(KERN_ERR "mv64360_disable: %s\n",
2107                                 "32bit table corrupted");
2108                 }
2109         }
2110 }
2111
2112 /*
2113  * mv64360_enable_window_64bit()
2114  *
2115  * On the MV64360, a 64-bit window is enabled by setting a bit in the window's
2116  * base reg.
2117  */
2118 static void __init
2119 mv64360_enable_window_64bit(struct mv64x60_handle *bh, u32 window)
2120 {
2121         pr_debug("enable 64bit window: %d\n", window);
2122
2123         if ((mv64360_64bit_windows[window].base_lo_reg!= 0) &&
2124                 (mv64360_64bit_windows[window].size_reg != 0)) {
2125
2126                 if ((mv64360_64bit_windows[window].extra & MV64x60_EXTRA_MASK)
2127                                 == MV64x60_EXTRA_PCIACC_ENAB)
2128                         mv64x60_set_bits(bh,
2129                                 mv64360_64bit_windows[window].base_lo_reg,
2130                                 (1 << (mv64360_64bit_windows[window].extra &
2131                                                                         0x1f)));
2132                 else
2133                         printk(KERN_ERR "mv64360_enable: %s\n",
2134                                 "64bit table corrupted");
2135         }
2136 }
2137
2138 /*
2139  * mv64360_disable_window_64bit()
2140  *
2141  * On a MV64360, a 64-bit window is disabled by clearing a bit in the window's
2142  * base reg.
2143  */
2144 static void __init
2145 mv64360_disable_window_64bit(struct mv64x60_handle *bh, u32 window)
2146 {
2147         pr_debug("disable 64bit window: %d, base_reg: 0x%x, size_reg: 0x%x\n",
2148                 window, mv64360_64bit_windows[window].base_lo_reg,
2149                 mv64360_64bit_windows[window].size_reg);
2150
2151         if ((mv64360_64bit_windows[window].base_lo_reg != 0) &&
2152                         (mv64360_64bit_windows[window].size_reg != 0)) {
2153                 if ((mv64360_64bit_windows[window].extra & MV64x60_EXTRA_MASK)
2154                                 == MV64x60_EXTRA_PCIACC_ENAB)
2155                         mv64x60_clr_bits(bh,
2156                                 mv64360_64bit_windows[window].base_lo_reg,
2157                                 (1 << (mv64360_64bit_windows[window].extra &
2158                                                                         0x1f)));
2159                 else
2160                         printk(KERN_ERR "mv64360_disable: %s\n",
2161                                 "64bit table corrupted");
2162         }
2163 }
2164
2165 /*
2166  * mv64360_disable_all_windows()
2167  *
2168  * The MV64360 has a few windows that aren't represented in the table of
2169  * windows at the top of this file.  This routine turns all of them off
2170  * except for the memory controller windows, of course.
2171  */
2172 static void __init
2173 mv64360_disable_all_windows(struct mv64x60_handle *bh,
2174         struct mv64x60_setup_info *si)
2175 {
2176         u32     preserve, i;
2177
2178         /* Disable 32bit windows (don't disable cpu->mem windows) */
2179         for (i=MV64x60_CPU2DEV_0_WIN; i<MV64x60_32BIT_WIN_COUNT; i++) {
2180                 if (i < 32)
2181                         preserve = si->window_preserve_mask_32_lo & (1 << i);
2182                 else
2183                         preserve = si->window_preserve_mask_32_hi & (1<<(i-32));
2184
2185                 if (!preserve)
2186                         mv64360_disable_window_32bit(bh, i);
2187         }
2188
2189         /* Disable 64bit windows */
2190         for (i=0; i<MV64x60_64BIT_WIN_COUNT; i++)
2191                 if (!(si->window_preserve_mask_64 & (1<<i)))
2192                         mv64360_disable_window_64bit(bh, i);
2193
2194         /* Turn off PCI->MEM access cntl wins not in mv64360_64bit_windows[] */
2195         mv64x60_clr_bits(bh, MV64x60_PCI0_ACC_CNTL_4_BASE_LO, 0);
2196         mv64x60_clr_bits(bh, MV64x60_PCI0_ACC_CNTL_5_BASE_LO, 0);
2197         mv64x60_clr_bits(bh, MV64x60_PCI1_ACC_CNTL_4_BASE_LO, 0);
2198         mv64x60_clr_bits(bh, MV64x60_PCI1_ACC_CNTL_5_BASE_LO, 0);
2199
2200         /* Disable all PCI-><whatever> windows */
2201         mv64x60_set_bits(bh, MV64x60_PCI0_BAR_ENABLE, 0x0000f9ff);
2202         mv64x60_set_bits(bh, MV64x60_PCI1_BAR_ENABLE, 0x0000f9ff);
2203 }
2204
2205 /*
2206  * mv64360_config_io2mem_windows()
2207  *
2208  * ENET, MPSC, and IDMA ctlrs on the MV64[34]60 have separate windows that
2209  * must be set up so that the respective ctlr can access system memory.
2210  */
2211 static u32 enet_tab[MV64x60_CPU2MEM_WINDOWS] __initdata = {
2212         MV64x60_ENET2MEM_0_WIN, MV64x60_ENET2MEM_1_WIN,
2213         MV64x60_ENET2MEM_2_WIN, MV64x60_ENET2MEM_3_WIN,
2214 };
2215
2216 static u32 mpsc_tab[MV64x60_CPU2MEM_WINDOWS] __initdata = {
2217         MV64x60_MPSC2MEM_0_WIN, MV64x60_MPSC2MEM_1_WIN,
2218         MV64x60_MPSC2MEM_2_WIN, MV64x60_MPSC2MEM_3_WIN,
2219 };
2220
2221 static u32 idma_tab[MV64x60_CPU2MEM_WINDOWS] __initdata = {
2222         MV64x60_IDMA2MEM_0_WIN, MV64x60_IDMA2MEM_1_WIN,
2223         MV64x60_IDMA2MEM_2_WIN, MV64x60_IDMA2MEM_3_WIN,
2224 };
2225
2226 static u32 dram_selects[MV64x60_CPU2MEM_WINDOWS] __initdata =
2227         { 0xe, 0xd, 0xb, 0x7 };
2228
2229 static void __init
2230 mv64360_config_io2mem_windows(struct mv64x60_handle *bh,
2231         struct mv64x60_setup_info *si,
2232         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2])
2233 {
2234         u32     i, win;
2235
2236         pr_debug("config_io2regs_windows: enet, mpsc, idma -> bridge regs\n");
2237
2238         mv64x60_write(bh, MV64360_ENET2MEM_ACC_PROT_0, 0);
2239         mv64x60_write(bh, MV64360_ENET2MEM_ACC_PROT_1, 0);
2240         mv64x60_write(bh, MV64360_ENET2MEM_ACC_PROT_2, 0);
2241
2242         mv64x60_write(bh, MV64360_MPSC2MEM_ACC_PROT_0, 0);
2243         mv64x60_write(bh, MV64360_MPSC2MEM_ACC_PROT_1, 0);
2244
2245         mv64x60_write(bh, MV64360_IDMA2MEM_ACC_PROT_0, 0);
2246         mv64x60_write(bh, MV64360_IDMA2MEM_ACC_PROT_1, 0);
2247         mv64x60_write(bh, MV64360_IDMA2MEM_ACC_PROT_2, 0);
2248         mv64x60_write(bh, MV64360_IDMA2MEM_ACC_PROT_3, 0);
2249
2250         /* Assume that mem ctlr has no more windows than embedded I/O ctlr */
2251         for (win=MV64x60_CPU2MEM_0_WIN,i=0;win<=MV64x60_CPU2MEM_3_WIN;win++,i++)
2252                 if (bh->ci->is_enabled_32bit(bh, win)) {
2253                         mv64x60_set_32bit_window(bh, enet_tab[i],
2254                                 mem_windows[i][0], mem_windows[i][1],
2255                                 (dram_selects[i] << 8) |
2256                                 (si->enet_options[i] & 0x3000));
2257                         bh->ci->enable_window_32bit(bh, enet_tab[i]);
2258
2259                         /* Give enet r/w access to memory region */
2260                         mv64x60_set_bits(bh, MV64360_ENET2MEM_ACC_PROT_0,
2261                                 (0x3 << (i << 1)));
2262                         mv64x60_set_bits(bh, MV64360_ENET2MEM_ACC_PROT_1,
2263                                 (0x3 << (i << 1)));
2264                         mv64x60_set_bits(bh, MV64360_ENET2MEM_ACC_PROT_2,
2265                                 (0x3 << (i << 1)));
2266
2267                         mv64x60_set_32bit_window(bh, mpsc_tab[i],
2268                                 mem_windows[i][0], mem_windows[i][1],
2269                                 (dram_selects[i] << 8) |
2270                                 (si->mpsc_options[i] & 0x3000));
2271                         bh->ci->enable_window_32bit(bh, mpsc_tab[i]);
2272
2273                         /* Give mpsc r/w access to memory region */
2274                         mv64x60_set_bits(bh, MV64360_MPSC2MEM_ACC_PROT_0,
2275                                 (0x3 << (i << 1)));
2276                         mv64x60_set_bits(bh, MV64360_MPSC2MEM_ACC_PROT_1,
2277                                 (0x3 << (i << 1)));
2278
2279                         mv64x60_set_32bit_window(bh, idma_tab[i],
2280                                 mem_windows[i][0], mem_windows[i][1],
2281                                 (dram_selects[i] << 8) |
2282                                 (si->idma_options[i] & 0x3000));
2283                         bh->ci->enable_window_32bit(bh, idma_tab[i]);
2284
2285                         /* Give idma r/w access to memory region */
2286                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_ACC_PROT_0,
2287                                 (0x3 << (i << 1)));
2288                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_ACC_PROT_1,
2289                                 (0x3 << (i << 1)));
2290                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_ACC_PROT_2,
2291                                 (0x3 << (i << 1)));
2292                         mv64x60_set_bits(bh, MV64360_IDMA2MEM_ACC_PROT_3,
2293                                 (0x3 << (i << 1)));
2294                 }
2295 }
2296
2297 /*
2298  * mv64360_set_mpsc2regs_window()
2299  *
2300  * MPSC has a window to the bridge's internal registers.  Call this routine
2301  * to change that window so it doesn't conflict with the windows mapping the
2302  * mpsc to system memory.
2303  */
2304 static void __init
2305 mv64360_set_mpsc2regs_window(struct mv64x60_handle *bh, u32 base)
2306 {
2307         pr_debug("set mpsc->internal regs, base: 0x%x\n", base);
2308         mv64x60_write(bh, MV64360_MPSC2REGS_BASE, base & 0xffff0000);
2309 }
2310
2311 /*
2312  * mv64360_chip_specific_init()
2313  *
2314  * Implement errata work arounds for the MV64360.
2315  */
2316 static void __init
2317 mv64360_chip_specific_init(struct mv64x60_handle *bh,
2318         struct mv64x60_setup_info *si)
2319 {
2320 #if !defined(CONFIG_NOT_COHERENT_CACHE)
2321         mv64x60_set_bits(bh, MV64360_D_UNIT_CONTROL_HIGH, (1<<24));
2322 #endif
2323 #ifdef CONFIG_SERIAL_MPSC
2324         mv64x60_mpsc0_pdata.brg_can_tune = 1;
2325         mv64x60_mpsc0_pdata.cache_mgmt = 1;
2326         mv64x60_mpsc1_pdata.brg_can_tune = 1;
2327         mv64x60_mpsc1_pdata.cache_mgmt = 1;
2328 #endif
2329 }
2330
2331 /*
2332  * mv64460_chip_specific_init()
2333  *
2334  * Implement errata work arounds for the MV64460.
2335  */
2336 static void __init
2337 mv64460_chip_specific_init(struct mv64x60_handle *bh,
2338         struct mv64x60_setup_info *si)
2339 {
2340 #if !defined(CONFIG_NOT_COHERENT_CACHE)
2341         mv64x60_set_bits(bh, MV64360_D_UNIT_CONTROL_HIGH, (1<<24) | (1<<25));
2342         mv64x60_set_bits(bh, MV64460_D_UNIT_MMASK, (1<<1) | (1<<4));
2343 #endif
2344 #ifdef CONFIG_SERIAL_MPSC
2345         mv64x60_mpsc0_pdata.brg_can_tune = 1;
2346         mv64x60_mpsc0_pdata.cache_mgmt = 1;
2347         mv64x60_mpsc1_pdata.brg_can_tune = 1;
2348         mv64x60_mpsc1_pdata.cache_mgmt = 1;
2349 #endif
2350 }
2351
2352
2353 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
2354 /* Export the hotswap register via sysfs for enum event monitoring */
2355 #define VAL_LEN_MAX     11 /* 32-bit hex or dec stringified number + '\n' */
2356
2357 DECLARE_MUTEX(mv64xxx_hs_lock);
2358
2359 static ssize_t
2360 mv64xxx_hs_reg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
2361 {
2362         u32     v;
2363         u8      save_exclude;
2364
2365         if (off > 0)
2366                 return 0;
2367         if (count < VAL_LEN_MAX)
2368                 return -EINVAL;
2369
2370         if (down_interruptible(&mv64xxx_hs_lock))
2371                 return -ERESTARTSYS;
2372         save_exclude = mv64x60_pci_exclude_bridge;
2373         mv64x60_pci_exclude_bridge = 0;
2374         early_read_config_dword(&sysfs_hose_a, 0, PCI_DEVFN(0, 0),
2375                         MV64360_PCICFG_CPCI_HOTSWAP, &v);
2376         mv64x60_pci_exclude_bridge = save_exclude;
2377         up(&mv64xxx_hs_lock);
2378
2379         return sprintf(buf, "0x%08x\n", v);
2380 }
2381
2382 static ssize_t
2383 mv64xxx_hs_reg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
2384 {
2385         u32     v;
2386         u8      save_exclude;
2387
2388         if (off > 0)
2389                 return 0;
2390         if (count <= 0)
2391                 return -EINVAL;
2392
2393         if (sscanf(buf, "%i", &v) == 1) {
2394                 if (down_interruptible(&mv64xxx_hs_lock))
2395                         return -ERESTARTSYS;
2396                 save_exclude = mv64x60_pci_exclude_bridge;
2397                 mv64x60_pci_exclude_bridge = 0;
2398                 early_write_config_dword(&sysfs_hose_a, 0, PCI_DEVFN(0, 0),
2399                                 MV64360_PCICFG_CPCI_HOTSWAP, v);
2400                 mv64x60_pci_exclude_bridge = save_exclude;
2401                 up(&mv64xxx_hs_lock);
2402         }
2403         else
2404                 count = -EINVAL;
2405
2406         return count;
2407 }
2408
2409 static struct bin_attribute mv64xxx_hs_reg_attr = { /* Hotswap register */
2410         .attr = {
2411                 .name = "hs_reg",
2412                 .mode = S_IRUGO | S_IWUSR,
2413                 .owner = THIS_MODULE,
2414         },
2415         .size  = VAL_LEN_MAX,
2416         .read  = mv64xxx_hs_reg_read,
2417         .write = mv64xxx_hs_reg_write,
2418 };
2419
2420 /* Provide sysfs file indicating if this platform supports the hs_reg */
2421 static ssize_t
2422 mv64xxx_hs_reg_valid_show(struct device *dev, struct device_attribute *attr,
2423                 char *buf)
2424 {
2425         struct platform_device  *pdev;
2426         struct mv64xxx_pdata    *pdp;
2427         u32                     v;
2428
2429         pdev = container_of(dev, struct platform_device, dev);
2430         pdp = (struct mv64xxx_pdata *)pdev->dev.platform_data;
2431
2432         if (down_interruptible(&mv64xxx_hs_lock))
2433                 return -ERESTARTSYS;
2434         v = pdp->hs_reg_valid;
2435         up(&mv64xxx_hs_lock);
2436
2437         return sprintf(buf, "%i\n", v);
2438 }
2439 static DEVICE_ATTR(hs_reg_valid, S_IRUGO, mv64xxx_hs_reg_valid_show, NULL);
2440
2441 static int __init
2442 mv64xxx_sysfs_init(void)
2443 {
2444         sysfs_create_bin_file(&mv64xxx_device.dev.kobj, &mv64xxx_hs_reg_attr);
2445         sysfs_create_file(&mv64xxx_device.dev.kobj,&dev_attr_hs_reg_valid.attr);
2446         return 0;
2447 }
2448 subsys_initcall(mv64xxx_sysfs_init);
2449 #endif