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