include/asm-ppc/mv64x60.h

   1 /*
   2  * include/asm-ppc/mv64x60.h
   3  *
   4  * Prototypes, etc. for the Marvell/Galileo MV64x60 host bridge routines.
   5  *
   6  * Author: Mark A. Greer <mgreer@mvista.com>
   7  *
   8  * 2001-2002 (c) MontaVista, Software, Inc.  This file is licensed under
   9  * the terms of the GNU General Public License version 2.  This program
  10  * is licensed "as is" without any warranty of any kind, whether express
  11  * or implied.
  12  */
  13 #ifndef __ASMPPC_MV64x60_H
  14 #define __ASMPPC_MV64x60_H
  15
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/pci.h>
  19 #include <linux/slab.h>
  20 #include <linux/config.h>
  21
  22 #include <asm/byteorder.h>
  23 #include <asm/io.h>
  24 #include <asm/irq.h>
  25 #include <asm/uaccess.h>
  26 #include <asm/machdep.h>
  27 #include <asm/pci-bridge.h>
  28 #include <asm/mv64x60_defs.h>
  29
  30 struct platform_device;
  31
  32 extern u8       mv64x60_pci_exclude_bridge;
  33
  34 extern spinlock_t mv64x60_lock;
  35
  36 /* 32-bit Window table entry defines */
  37 #define MV64x60_CPU2MEM_0_WIN                   0
  38 #define MV64x60_CPU2MEM_1_WIN                   1
  39 #define MV64x60_CPU2MEM_2_WIN                   2
  40 #define MV64x60_CPU2MEM_3_WIN                   3
  41 #define MV64x60_CPU2DEV_0_WIN                   4
  42 #define MV64x60_CPU2DEV_1_WIN                   5
  43 #define MV64x60_CPU2DEV_2_WIN                   6
  44 #define MV64x60_CPU2DEV_3_WIN                   7
  45 #define MV64x60_CPU2BOOT_WIN                    8
  46 #define MV64x60_CPU2PCI0_IO_WIN                 9
  47 #define MV64x60_CPU2PCI0_MEM_0_WIN              10
  48 #define MV64x60_CPU2PCI0_MEM_1_WIN              11
  49 #define MV64x60_CPU2PCI0_MEM_2_WIN              12
  50 #define MV64x60_CPU2PCI0_MEM_3_WIN              13
  51 #define MV64x60_CPU2PCI1_IO_WIN                 14
  52 #define MV64x60_CPU2PCI1_MEM_0_WIN              15
  53 #define MV64x60_CPU2PCI1_MEM_1_WIN              16
  54 #define MV64x60_CPU2PCI1_MEM_2_WIN              17
  55 #define MV64x60_CPU2PCI1_MEM_3_WIN              18
  56 #define MV64x60_CPU2SRAM_WIN                    19
  57 #define MV64x60_CPU2PCI0_IO_REMAP_WIN           20
  58 #define MV64x60_CPU2PCI1_IO_REMAP_WIN           21
  59 #define MV64x60_CPU_PROT_0_WIN                  22
  60 #define MV64x60_CPU_PROT_1_WIN                  23
  61 #define MV64x60_CPU_PROT_2_WIN                  24
  62 #define MV64x60_CPU_PROT_3_WIN                  25
  63 #define MV64x60_CPU_SNOOP_0_WIN                 26
  64 #define MV64x60_CPU_SNOOP_1_WIN                 27
  65 #define MV64x60_CPU_SNOOP_2_WIN                 28
  66 #define MV64x60_CPU_SNOOP_3_WIN                 29
  67 #define MV64x60_PCI02MEM_REMAP_0_WIN            30
  68 #define MV64x60_PCI02MEM_REMAP_1_WIN            31
  69 #define MV64x60_PCI02MEM_REMAP_2_WIN            32
  70 #define MV64x60_PCI02MEM_REMAP_3_WIN            33
  71 #define MV64x60_PCI12MEM_REMAP_0_WIN            34
  72 #define MV64x60_PCI12MEM_REMAP_1_WIN            35
  73 #define MV64x60_PCI12MEM_REMAP_2_WIN            36
  74 #define MV64x60_PCI12MEM_REMAP_3_WIN            37
  75 #define MV64x60_ENET2MEM_0_WIN                  38
  76 #define MV64x60_ENET2MEM_1_WIN                  39
  77 #define MV64x60_ENET2MEM_2_WIN                  40
  78 #define MV64x60_ENET2MEM_3_WIN                  41
  79 #define MV64x60_ENET2MEM_4_WIN                  42
  80 #define MV64x60_ENET2MEM_5_WIN                  43
  81 #define MV64x60_MPSC2MEM_0_WIN                  44
  82 #define MV64x60_MPSC2MEM_1_WIN                  45
  83 #define MV64x60_MPSC2MEM_2_WIN                  46
  84 #define MV64x60_MPSC2MEM_3_WIN                  47
  85 #define MV64x60_IDMA2MEM_0_WIN                  48
  86 #define MV64x60_IDMA2MEM_1_WIN                  49
  87 #define MV64x60_IDMA2MEM_2_WIN                  50
  88 #define MV64x60_IDMA2MEM_3_WIN                  51
  89 #define MV64x60_IDMA2MEM_4_WIN                  52
  90 #define MV64x60_IDMA2MEM_5_WIN                  53
  91 #define MV64x60_IDMA2MEM_6_WIN                  54
  92 #define MV64x60_IDMA2MEM_7_WIN                  55
  93
  94 #define MV64x60_32BIT_WIN_COUNT                 56
  95
  96 /* 64-bit Window table entry defines */
  97 #define MV64x60_CPU2PCI0_MEM_0_REMAP_WIN        0
  98 #define MV64x60_CPU2PCI0_MEM_1_REMAP_WIN        1
  99 #define MV64x60_CPU2PCI0_MEM_2_REMAP_WIN        2
 100 #define MV64x60_CPU2PCI0_MEM_3_REMAP_WIN        3
 101 #define MV64x60_CPU2PCI1_MEM_0_REMAP_WIN        4
 102 #define MV64x60_CPU2PCI1_MEM_1_REMAP_WIN        5
 103 #define MV64x60_CPU2PCI1_MEM_2_REMAP_WIN        6
 104 #define MV64x60_CPU2PCI1_MEM_3_REMAP_WIN        7
 105 #define MV64x60_PCI02MEM_ACC_CNTL_0_WIN         8
 106 #define MV64x60_PCI02MEM_ACC_CNTL_1_WIN         9
 107 #define MV64x60_PCI02MEM_ACC_CNTL_2_WIN         10
 108 #define MV64x60_PCI02MEM_ACC_CNTL_3_WIN         11
 109 #define MV64x60_PCI12MEM_ACC_CNTL_0_WIN         12
 110 #define MV64x60_PCI12MEM_ACC_CNTL_1_WIN         13
 111 #define MV64x60_PCI12MEM_ACC_CNTL_2_WIN         14
 112 #define MV64x60_PCI12MEM_ACC_CNTL_3_WIN         15
 113 #define MV64x60_PCI02MEM_SNOOP_0_WIN            16
 114 #define MV64x60_PCI02MEM_SNOOP_1_WIN            17
 115 #define MV64x60_PCI02MEM_SNOOP_2_WIN            18
 116 #define MV64x60_PCI02MEM_SNOOP_3_WIN            19
 117 #define MV64x60_PCI12MEM_SNOOP_0_WIN            20
 118 #define MV64x60_PCI12MEM_SNOOP_1_WIN            21
 119 #define MV64x60_PCI12MEM_SNOOP_2_WIN            22
 120 #define MV64x60_PCI12MEM_SNOOP_3_WIN            23
 121
 122 #define MV64x60_64BIT_WIN_COUNT                 24
 123
 124 /* Watchdog Platform Device, Driver Data */
 125 #define MV64x60_WDT_NAME                        "wdt"
 126
 127 struct mv64x60_wdt_pdata {
 128         int     timeout;        /* watchdog expiry in seconds, default 10 */
 129         int     bus_clk;        /* bus clock in MHz, default 133 */
 130 };
 131
 132 /*
 133  * Define a structure that's used to pass in config information to the
 134  * core routines.
 135  */
 136 struct mv64x60_pci_window {
 137         u32     cpu_base;
 138         u32     pci_base_hi;
 139         u32     pci_base_lo;
 140         u32     size;
 141         u32     swap;
 142 };
 143
 144 struct mv64x60_pci_info {
 145         u8      enable_bus;     /* allow access to this PCI bus? */
 146
 147         struct mv64x60_pci_window       pci_io;
 148         struct mv64x60_pci_window       pci_mem[3];
 149
 150         u32     acc_cntl_options[MV64x60_CPU2MEM_WINDOWS];
 151         u32     snoop_options[MV64x60_CPU2MEM_WINDOWS];
 152         u16     pci_cmd_bits;
 153         u16     latency_timer;
 154 };
 155
 156 struct mv64x60_setup_info {
 157         u32     phys_reg_base;
 158         u32     window_preserve_mask_32_hi;
 159         u32     window_preserve_mask_32_lo;
 160         u32     window_preserve_mask_64;
 161
 162         u32     cpu_prot_options[MV64x60_CPU2MEM_WINDOWS];
 163         u32     cpu_snoop_options[MV64x60_CPU2MEM_WINDOWS];
 164         u32     enet_options[MV64x60_CPU2MEM_WINDOWS];
 165         u32     mpsc_options[MV64x60_CPU2MEM_WINDOWS];
 166         u32     idma_options[MV64x60_CPU2MEM_WINDOWS];
 167
 168         struct mv64x60_pci_info pci_0;
 169         struct mv64x60_pci_info pci_1;
 170 };
 171
 172 /* Define what the top bits in the extra member of a window entry means. */
 173 #define MV64x60_EXTRA_INVALID           0x00000000
 174 #define MV64x60_EXTRA_CPUWIN_ENAB       0x10000000
 175 #define MV64x60_EXTRA_CPUPROT_ENAB      0x20000000
 176 #define MV64x60_EXTRA_ENET_ENAB         0x30000000
 177 #define MV64x60_EXTRA_MPSC_ENAB         0x40000000
 178 #define MV64x60_EXTRA_IDMA_ENAB         0x50000000
 179 #define MV64x60_EXTRA_PCIACC_ENAB       0x60000000
 180
 181 #define MV64x60_EXTRA_MASK              0xf0000000
 182
 183 /*
 184  * Define the 'handle' struct that will be passed between the 64x60 core
 185  * code and the platform-specific code that will use it.  The handle
 186  * will contain pointers to chip-specific routines & information.
 187  */
 188 struct mv64x60_32bit_window {
 189         u32     base_reg;
 190         u32     size_reg;
 191         u8      base_bits;
 192         u8      size_bits;
 193         u32     (*get_from_field)(u32 val, u32 num_bits);
 194         u32     (*map_to_field)(u32 val, u32 num_bits);
 195         u32     extra;
 196 };
 197
 198 struct mv64x60_64bit_window {
 199         u32     base_hi_reg;
 200         u32     base_lo_reg;
 201         u32     size_reg;
 202         u8      base_lo_bits;
 203         u8      size_bits;
 204         u32     (*get_from_field)(u32 val, u32 num_bits);
 205         u32     (*map_to_field)(u32 val, u32 num_bits);
 206         u32     extra;
 207 };
 208
 209 typedef struct mv64x60_handle   mv64x60_handle_t;
 210 struct mv64x60_chip_info {
 211         u32     (*translate_size)(u32 base, u32 size, u32 num_bits);
 212         u32     (*untranslate_size)(u32 base, u32 size, u32 num_bits);
 213         void    (*set_pci2mem_window)(struct pci_controller *hose, u32 bus,
 214                         u32 window, u32 base);
 215         void    (*set_pci2regs_window)(struct mv64x60_handle *bh,
 216                         struct pci_controller *hose, u32 bus, u32 base);
 217         u32     (*is_enabled_32bit)(mv64x60_handle_t *bh, u32 window);
 218         void    (*enable_window_32bit)(mv64x60_handle_t *bh, u32 window);
 219         void    (*disable_window_32bit)(mv64x60_handle_t *bh, u32 window);
 220         void    (*enable_window_64bit)(mv64x60_handle_t *bh, u32 window);
 221         void    (*disable_window_64bit)(mv64x60_handle_t *bh, u32 window);
 222         void    (*disable_all_windows)(mv64x60_handle_t *bh,
 223                         struct mv64x60_setup_info *si);
 224         void    (*config_io2mem_windows)(mv64x60_handle_t *bh,
 225                         struct mv64x60_setup_info *si,
 226                         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2]);
 227         void    (*set_mpsc2regs_window)(struct mv64x60_handle *bh, u32 base);
 228         void    (*chip_specific_init)(mv64x60_handle_t *bh,
 229                         struct mv64x60_setup_info *si);
 230
 231         struct mv64x60_32bit_window     *window_tab_32bit;
 232         struct mv64x60_64bit_window     *window_tab_64bit;
 233 };
 234
 235 struct mv64x60_handle {
 236         u32             type;           /* type of bridge */
 237         u32             rev;            /* revision of bridge */
 238         void            __iomem *v_base;/* virtual base addr of bridge regs */
 239         phys_addr_t     p_base;         /* physical base addr of bridge regs */
 240
 241         u32             pci_mode_a;     /* pci 0 mode: conventional pci, pci-x*/
 242         u32             pci_mode_b;     /* pci 1 mode: conventional pci, pci-x*/
 243
 244         u32             io_base_a;      /* vaddr of pci 0's I/O space */
 245         u32             io_base_b;      /* vaddr of pci 1's I/O space */
 246
 247         struct pci_controller   *hose_a;
 248         struct pci_controller   *hose_b;
 249
 250         struct mv64x60_chip_info *ci;   /* chip/bridge-specific info */
 251 };
 252
 253
 254 /* Define I/O routines for accessing registers on the 64x60 bridge. */
 255 extern inline void
 256 mv64x60_write(struct mv64x60_handle *bh, u32 offset, u32 val) {
 257         ulong   flags;
 258
 259         spin_lock_irqsave(&mv64x60_lock, flags);
 260         out_le32(bh->v_base + offset, val);
 261         spin_unlock_irqrestore(&mv64x60_lock, flags);
 262 }
 263
 264 extern inline u32
 265 mv64x60_read(struct mv64x60_handle *bh, u32 offset) {
 266         ulong   flags;
 267         u32     reg;
 268
 269         spin_lock_irqsave(&mv64x60_lock, flags);
 270         reg = in_le32(bh->v_base + offset);
 271         spin_unlock_irqrestore(&mv64x60_lock, flags);
 272         return reg;
 273 }
 274
 275 extern inline void
 276 mv64x60_modify(struct mv64x60_handle *bh, u32 offs, u32 data, u32 mask)
 277 {
 278         u32     reg;
 279         ulong   flags;
 280
 281         spin_lock_irqsave(&mv64x60_lock, flags);
 282         reg = in_le32(bh->v_base + offs) & (~mask);
 283         reg |= data & mask;
 284         out_le32(bh->v_base + offs, reg);
 285         spin_unlock_irqrestore(&mv64x60_lock, flags);
 286 }
 287
 288 #define mv64x60_set_bits(bh, offs, bits) mv64x60_modify(bh, offs, ~0, bits)
 289 #define mv64x60_clr_bits(bh, offs, bits) mv64x60_modify(bh, offs, 0, bits)
 290
 291 #if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
 292 #define MV64XXX_DEV_NAME        "mv64xxx"
 293
 294 struct mv64xxx_pdata {
 295         u32     hs_reg_valid;
 296 };
 297 #endif
 298
 299 /* Externally visible function prototypes */
 300 int mv64x60_init(struct mv64x60_handle *bh, struct mv64x60_setup_info *si);
 301 u32 mv64x60_get_mem_size(u32 bridge_base, u32 chip_type);
 302 void mv64x60_early_init(struct mv64x60_handle *bh,
 303         struct mv64x60_setup_info *si);
 304 void mv64x60_alloc_hose(struct mv64x60_handle *bh, u32 cfg_addr,
 305         u32 cfg_data, struct pci_controller **hose);
 306 int mv64x60_get_type(struct mv64x60_handle *bh);
 307 int mv64x60_setup_for_chip(struct mv64x60_handle *bh);
 308 void __iomem *mv64x60_get_bridge_vbase(void);
 309 u32 mv64x60_get_bridge_type(void);
 310 u32 mv64x60_get_bridge_rev(void);
 311 void mv64x60_get_mem_windows(struct mv64x60_handle *bh,
 312         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2]);
 313 void mv64x60_config_cpu2mem_windows(struct mv64x60_handle *bh,
 314         struct mv64x60_setup_info *si,
 315         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2]);
 316 void mv64x60_config_cpu2pci_windows(struct mv64x60_handle *bh,
 317         struct mv64x60_pci_info *pi, u32 bus);
 318 void mv64x60_config_pci2mem_windows(struct mv64x60_handle *bh,
 319         struct pci_controller *hose, struct mv64x60_pci_info *pi, u32 bus,
 320         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2]);
 321 void mv64x60_config_resources(struct pci_controller *hose,
 322         struct mv64x60_pci_info *pi, u32 io_base);
 323 void mv64x60_config_pci_params(struct pci_controller *hose,
 324         struct mv64x60_pci_info *pi);
 325 void mv64x60_pd_fixup(struct mv64x60_handle *bh,
 326         struct platform_device *pd_devs[], u32 entries);
 327 void mv64x60_get_32bit_window(struct mv64x60_handle *bh, u32 window,
 328         u32 *base, u32 *size);
 329 void mv64x60_set_32bit_window(struct mv64x60_handle *bh, u32 window, u32 base,
 330         u32 size, u32 other_bits);
 331 void mv64x60_get_64bit_window(struct mv64x60_handle *bh, u32 window,
 332         u32 *base_hi, u32 *base_lo, u32 *size);
 333 void mv64x60_set_64bit_window(struct mv64x60_handle *bh, u32 window,
 334         u32 base_hi, u32 base_lo, u32 size, u32 other_bits);
 335 void mv64x60_set_bus(struct mv64x60_handle *bh, u32 bus, u32 child_bus);
 336 int mv64x60_pci_exclude_device(u8 bus, u8 devfn);
 337
 338
 339 void gt64260_init_irq(void);
 340 int gt64260_get_irq(struct pt_regs *regs);
 341 void mv64360_init_irq(void);
 342 int mv64360_get_irq(struct pt_regs *regs);
 343
 344 u32 mv64x60_mask(u32 val, u32 num_bits);
 345 u32 mv64x60_shift_left(u32 val, u32 num_bits);
 346 u32 mv64x60_shift_right(u32 val, u32 num_bits);
 347 u32 mv64x60_calc_mem_size(struct mv64x60_handle *bh,
 348         u32 mem_windows[MV64x60_CPU2MEM_WINDOWS][2]);
 349
 350 void mv64x60_progress_init(u32 base);
 351 void mv64x60_mpsc_progress(char *s, unsigned short hex);
 352
 353 extern struct mv64x60_32bit_window
 354         gt64260_32bit_windows[MV64x60_32BIT_WIN_COUNT];
 355 extern struct mv64x60_64bit_window
 356         gt64260_64bit_windows[MV64x60_64BIT_WIN_COUNT];
 357 extern struct mv64x60_32bit_window
 358         mv64360_32bit_windows[MV64x60_32BIT_WIN_COUNT];
 359 extern struct mv64x60_64bit_window
 360         mv64360_64bit_windows[MV64x60_64BIT_WIN_COUNT];
 361
 362 #endif /* __ASMPPC_MV64x60_H */