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