release/src-rt-6.x.4708/linux/linux-2.6.36/arch/sh/boards/mach-highlander/setup.c

   1 /*
   2  * arch/sh/boards/renesas/r7780rp/setup.c
   3  *
   4  * Renesas Solutions Highlander Support.
   5  *
   6  * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
   7  * Copyright (C) 2005 - 2008 Paul Mundt
   8  *
   9  * This contains support for the R7780RP-1, R7780MP, and R7785RP
  10  * Highlander modules.
  11  *
  12  * This file is subject to the terms and conditions of the GNU General Public
  13  * License.  See the file "COPYING" in the main directory of this archive
  14  * for more details.
  15  */
  16 #include <linux/init.h>
  17 #include <linux/io.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/ata_platform.h>
  20 #include <linux/types.h>
  21 #include <linux/mtd/physmap.h>
  22 #include <linux/i2c.h>
  23 #include <linux/irq.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/usb/r8a66597.h>
  26 #include <linux/usb/m66592.h>
  27 #include <net/ax88796.h>
  28 #include <asm/machvec.h>
  29 #include <mach/highlander.h>
  30 #include <asm/clkdev.h>
  31 #include <asm/clock.h>
  32 #include <asm/heartbeat.h>
  33 #include <asm/io.h>
  34 #include <asm/io_trapped.h>
  35
  36 static struct r8a66597_platdata r8a66597_data = {
  37         .xtal = R8A66597_PLATDATA_XTAL_12MHZ,
  38         .vif = 1,
  39 };
  40
  41 static struct resource r8a66597_usb_host_resources[] = {
  42         [0] = {
  43                 .start  = 0xA4200000,
  44                 .end    = 0xA42000FF,
  45                 .flags  = IORESOURCE_MEM,
  46         },
  47         [1] = {
  48                 .start  = IRQ_EXT1,             /* irq number */
  49                 .end    = IRQ_EXT1,
  50                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
  51         },
  52 };
  53
  54 static struct platform_device r8a66597_usb_host_device = {
  55         .name           = "r8a66597_hcd",
  56         .id             = -1,
  57         .dev = {
  58                 .dma_mask               = NULL,         /* don't use dma */
  59                 .coherent_dma_mask      = 0xffffffff,
  60                 .platform_data          = &r8a66597_data,
  61         },
  62         .num_resources  = ARRAY_SIZE(r8a66597_usb_host_resources),
  63         .resource       = r8a66597_usb_host_resources,
  64 };
  65
  66 static struct m66592_platdata usbf_platdata = {
  67         .xtal = M66592_PLATDATA_XTAL_24MHZ,
  68         .vif = 1,
  69 };
  70
  71 static struct resource m66592_usb_peripheral_resources[] = {
  72         [0] = {
  73                 .name   = "m66592_udc",
  74                 .start  = 0xb0000000,
  75                 .end    = 0xb00000FF,
  76                 .flags  = IORESOURCE_MEM,
  77         },
  78         [1] = {
  79                 .name   = "m66592_udc",
  80                 .start  = IRQ_EXT4,             /* irq number */
  81                 .end    = IRQ_EXT4,
  82                 .flags  = IORESOURCE_IRQ,
  83         },
  84 };
  85
  86 static struct platform_device m66592_usb_peripheral_device = {
  87         .name           = "m66592_udc",
  88         .id             = -1,
  89         .dev = {
  90                 .dma_mask               = NULL,         /* don't use dma */
  91                 .coherent_dma_mask      = 0xffffffff,
  92                 .platform_data          = &usbf_platdata,
  93         },
  94         .num_resources  = ARRAY_SIZE(m66592_usb_peripheral_resources),
  95         .resource       = m66592_usb_peripheral_resources,
  96 };
  97
  98 static struct resource cf_ide_resources[] = {
  99         [0] = {
 100                 .start  = PA_AREA5_IO + 0x1000,
 101                 .end    = PA_AREA5_IO + 0x1000 + 0x08 - 1,
 102                 .flags  = IORESOURCE_MEM,
 103         },
 104         [1] = {
 105                 .start  = PA_AREA5_IO + 0x80c,
 106                 .end    = PA_AREA5_IO + 0x80c + 0x16 - 1,
 107                 .flags  = IORESOURCE_MEM,
 108         },
 109         [2] = {
 110                 .start  = IRQ_CF,
 111                 .flags  = IORESOURCE_IRQ,
 112         },
 113 };
 114
 115 static struct pata_platform_info pata_info = {
 116         .ioport_shift   = 1,
 117 };
 118
 119 static struct platform_device cf_ide_device  = {
 120         .name           = "pata_platform",
 121         .id             = -1,
 122         .num_resources  = ARRAY_SIZE(cf_ide_resources),
 123         .resource       = cf_ide_resources,
 124         .dev    = {
 125                 .platform_data  = &pata_info,
 126         },
 127 };
 128
 129 static struct resource heartbeat_resources[] = {
 130         [0] = {
 131                 .start  = PA_OBLED,
 132                 .end    = PA_OBLED,
 133                 .flags  = IORESOURCE_MEM,
 134         },
 135 };
 136
 137 #ifndef CONFIG_SH_R7785RP
 138 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
 139
 140 static struct heartbeat_data heartbeat_data = {
 141         .bit_pos        = heartbeat_bit_pos,
 142         .nr_bits        = ARRAY_SIZE(heartbeat_bit_pos),
 143 };
 144 #endif
 145
 146 static struct platform_device heartbeat_device = {
 147         .name           = "heartbeat",
 148         .id             = -1,
 149
 150         /* R7785RP has a slightly more sensible FPGA.. */
 151 #ifndef CONFIG_SH_R7785RP
 152         .dev    = {
 153                 .platform_data  = &heartbeat_data,
 154         },
 155 #endif
 156         .num_resources  = ARRAY_SIZE(heartbeat_resources),
 157         .resource       = heartbeat_resources,
 158 };
 159
 160 static struct ax_plat_data ax88796_platdata = {
 161         .flags          = AXFLG_HAS_93CX6,
 162         .wordlength     = 2,
 163         .dcr_val        = 0x1,
 164         .rcr_val        = 0x40,
 165 };
 166
 167 static struct resource ax88796_resources[] = {
 168         {
 169 #ifdef CONFIG_SH_R7780RP
 170                 .start  = 0xa5800400,
 171                 .end    = 0xa5800400 + (0x20 * 0x2) - 1,
 172 #else
 173                 .start  = 0xa4100400,
 174                 .end    = 0xa4100400 + (0x20 * 0x2) - 1,
 175 #endif
 176                 .flags  = IORESOURCE_MEM,
 177         },
 178         {
 179                 .start  = IRQ_AX88796,
 180                 .end    = IRQ_AX88796,
 181                 .flags  = IORESOURCE_IRQ,
 182         },
 183 };
 184
 185 static struct platform_device ax88796_device = {
 186         .name           = "ax88796",
 187         .id             = 0,
 188
 189         .dev    = {
 190                 .platform_data = &ax88796_platdata,
 191         },
 192
 193         .num_resources  = ARRAY_SIZE(ax88796_resources),
 194         .resource       = ax88796_resources,
 195 };
 196
 197 static struct mtd_partition nor_flash_partitions[] = {
 198         {
 199                 .name           = "loader",
 200                 .offset         = 0x00000000,
 201                 .size           = 512 * 1024,
 202         },
 203         {
 204                 .name           = "bootenv",
 205                 .offset         = MTDPART_OFS_APPEND,
 206                 .size           = 512 * 1024,
 207         },
 208         {
 209                 .name           = "kernel",
 210                 .offset         = MTDPART_OFS_APPEND,
 211                 .size           = 4 * 1024 * 1024,
 212         },
 213         {
 214                 .name           = "data",
 215                 .offset         = MTDPART_OFS_APPEND,
 216                 .size           = MTDPART_SIZ_FULL,
 217         },
 218 };
 219
 220 static struct physmap_flash_data nor_flash_data = {
 221         .width          = 4,
 222         .parts          = nor_flash_partitions,
 223         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
 224 };
 225
 226 /* This config is flash board for mass production. */
 227 static struct resource nor_flash_resources[] = {
 228         [0]     = {
 229                 .start  = PA_NORFLASH_ADDR,
 230                 .end    = PA_NORFLASH_ADDR + PA_NORFLASH_SIZE - 1,
 231                 .flags  = IORESOURCE_MEM,
 232         }
 233 };
 234
 235 static struct platform_device nor_flash_device = {
 236         .name           = "physmap-flash",
 237         .dev            = {
 238                 .platform_data  = &nor_flash_data,
 239         },
 240         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 241         .resource       = nor_flash_resources,
 242 };
 243
 244 static struct resource smbus_resources[] = {
 245         [0] = {
 246                 .start  = PA_SMCR,
 247                 .end    = PA_SMCR + 0x100 - 1,
 248                 .flags  = IORESOURCE_MEM,
 249         },
 250         [1] = {
 251                 .start  = IRQ_SMBUS,
 252                 .end    = IRQ_SMBUS,
 253                 .flags  = IORESOURCE_IRQ,
 254         },
 255 };
 256
 257 static struct platform_device smbus_device = {
 258         .name           = "i2c-highlander",
 259         .id             = 0,
 260         .num_resources  = ARRAY_SIZE(smbus_resources),
 261         .resource       = smbus_resources,
 262 };
 263
 264 static struct i2c_board_info __initdata highlander_i2c_devices[] = {
 265         {
 266                 I2C_BOARD_INFO("r2025sd", 0x32),
 267         },
 268 };
 269
 270 static struct platform_device *r7780rp_devices[] __initdata = {
 271         &r8a66597_usb_host_device,
 272         &m66592_usb_peripheral_device,
 273         &heartbeat_device,
 274         &smbus_device,
 275         &nor_flash_device,
 276 #ifndef CONFIG_SH_R7780RP
 277         &ax88796_device,
 278 #endif
 279 };
 280
 281 /*
 282  * The CF is connected using a 16-bit bus where 8-bit operations are
 283  * unsupported. The linux ata driver is however using 8-bit operations, so
 284  * insert a trapped io filter to convert 8-bit operations into 16-bit.
 285  */
 286 static struct trapped_io cf_trapped_io = {
 287         .resource               = cf_ide_resources,
 288         .num_resources          = 2,
 289         .minimum_bus_width      = 16,
 290 };
 291
 292 static int __init r7780rp_devices_setup(void)
 293 {
 294         int ret = 0;
 295
 296 #ifndef CONFIG_SH_R7780RP
 297         if (register_trapped_io(&cf_trapped_io) == 0)
 298                 ret |= platform_device_register(&cf_ide_device);
 299 #endif
 300
 301         ret |= platform_add_devices(r7780rp_devices,
 302                                     ARRAY_SIZE(r7780rp_devices));
 303
 304         ret |= i2c_register_board_info(0, highlander_i2c_devices,
 305                                        ARRAY_SIZE(highlander_i2c_devices));
 306
 307         return ret;
 308 }
 309 device_initcall(r7780rp_devices_setup);
 310
 311 /*
 312  * Platform specific clocks
 313  */
 314 static int ivdr_clk_enable(struct clk *clk)
 315 {
 316         __raw_writew(__raw_readw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
 317         return 0;
 318 }
 319
 320 static void ivdr_clk_disable(struct clk *clk)
 321 {
 322         __raw_writew(__raw_readw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
 323 }
 324
 325 static struct clk_ops ivdr_clk_ops = {
 326         .enable         = ivdr_clk_enable,
 327         .disable        = ivdr_clk_disable,
 328 };
 329
 330 static struct clk ivdr_clk = {
 331         .ops            = &ivdr_clk_ops,
 332 };
 333
 334 static struct clk *r7780rp_clocks[] = {
 335         &ivdr_clk,
 336 };
 337
 338 #define CLKDEV_CON_ID(_id, _clk) { .con_id = _id, .clk = _clk }
 339
 340 static struct clk_lookup lookups[] = {
 341         /* main clocks */
 342         CLKDEV_CON_ID("ivdr_clk", &ivdr_clk),
 343 };
 344
 345 static void r7780rp_power_off(void)
 346 {
 347         if (mach_is_r7780mp() || mach_is_r7785rp())
 348                 __raw_writew(0x0001, PA_POFF);
 349 }
 350
 351 /*
 352  * Initialize the board
 353  */
 354 static void __init highlander_setup(char **cmdline_p)
 355 {
 356         u16 ver = __raw_readw(PA_VERREG);
 357         int i;
 358
 359         printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
 360                          mach_is_r7780rp() ? "R7780RP-1" :
 361                          mach_is_r7780mp() ? "R7780MP"   :
 362                                              "R7785RP");
 363
 364         printk(KERN_INFO "Board version: %d (revision %d), "
 365                          "FPGA version: %d (revision %d)\n",
 366                          (ver >> 12) & 0xf, (ver >> 8) & 0xf,
 367                          (ver >>  4) & 0xf, ver & 0xf);
 368
 369         highlander_plat_pinmux_setup();
 370
 371         /*
 372          * Enable the important clocks right away..
 373          */
 374         for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
 375                 struct clk *clk = r7780rp_clocks[i];
 376
 377                 clk_register(clk);
 378                 clk_enable(clk);
 379         }
 380
 381         clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 382
 383         __raw_writew(0x0000, PA_OBLED); /* Clear LED. */
 384
 385         if (mach_is_r7780rp())
 386                 __raw_writew(0x0001, PA_SDPOW); /* SD Power ON */
 387
 388         __raw_writew(__raw_readw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);       /* Si13112 */
 389
 390         pm_power_off = r7780rp_power_off;
 391 }
 392
 393 static unsigned char irl2irq[HL_NR_IRL];
 394
 395 static int highlander_irq_demux(int irq)
 396 {
 397         if (irq >= HL_NR_IRL || irq < 0 || !irl2irq[irq])
 398                 return irq;
 399
 400         return irl2irq[irq];
 401 }
 402
 403 static void __init highlander_init_irq(void)
 404 {
 405         unsigned char *ucp = highlander_plat_irq_setup();
 406
 407         if (ucp) {
 408                 plat_irq_setup_pins(IRQ_MODE_IRL3210);
 409                 memcpy(irl2irq, ucp, HL_NR_IRL);
 410         }
 411 }
 412
 413 /*
 414  * The Machine Vector
 415  */
 416 static struct sh_machine_vector mv_highlander __initmv = {
 417         .mv_name                = "Highlander",
 418         .mv_setup               = highlander_setup,
 419         .mv_init_irq            = highlander_init_irq,
 420         .mv_irq_demux           = highlander_irq_demux,
 421 };