arch/sh/boards/renesas/r7780rp/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/i2c.h>
  21 #include <net/ax88796.h>
  22 #include <asm/machvec.h>
  23 #include <asm/r7780rp.h>
  24 #include <asm/clock.h>
  25 #include <asm/heartbeat.h>
  26 #include <asm/io.h>
  27 #include <asm/io_trapped.h>
  28
  29 static struct resource r8a66597_usb_host_resources[] = {
  30         [0] = {
  31                 .name   = "r8a66597_hcd",
  32                 .start  = 0xA4200000,
  33                 .end    = 0xA42000FF,
  34                 .flags  = IORESOURCE_MEM,
  35         },
  36         [1] = {
  37                 .name   = "r8a66597_hcd",
  38                 .start  = IRQ_EXT1,             /* irq number */
  39                 .end    = IRQ_EXT1,
  40                 .flags  = IORESOURCE_IRQ,
  41         },
  42 };
  43
  44 static struct platform_device r8a66597_usb_host_device = {
  45         .name           = "r8a66597_hcd",
  46         .id             = -1,
  47         .dev = {
  48                 .dma_mask               = NULL,         /* don't use dma */
  49                 .coherent_dma_mask      = 0xffffffff,
  50         },
  51         .num_resources  = ARRAY_SIZE(r8a66597_usb_host_resources),
  52         .resource       = r8a66597_usb_host_resources,
  53 };
  54
  55 static struct resource m66592_usb_peripheral_resources[] = {
  56         [0] = {
  57                 .name   = "m66592_udc",
  58                 .start  = 0xb0000000,
  59                 .end    = 0xb00000FF,
  60                 .flags  = IORESOURCE_MEM,
  61         },
  62         [1] = {
  63                 .name   = "m66592_udc",
  64                 .start  = IRQ_EXT4,             /* irq number */
  65                 .end    = IRQ_EXT4,
  66                 .flags  = IORESOURCE_IRQ,
  67         },
  68 };
  69
  70 static struct platform_device m66592_usb_peripheral_device = {
  71         .name           = "m66592_udc",
  72         .id             = -1,
  73         .dev = {
  74                 .dma_mask               = NULL,         /* don't use dma */
  75                 .coherent_dma_mask      = 0xffffffff,
  76         },
  77         .num_resources  = ARRAY_SIZE(m66592_usb_peripheral_resources),
  78         .resource       = m66592_usb_peripheral_resources,
  79 };
  80
  81 static struct resource cf_ide_resources[] = {
  82         [0] = {
  83                 .start  = PA_AREA5_IO + 0x1000,
  84                 .end    = PA_AREA5_IO + 0x1000 + 0x08 - 1,
  85                 .flags  = IORESOURCE_MEM,
  86         },
  87         [1] = {
  88                 .start  = PA_AREA5_IO + 0x80c,
  89                 .end    = PA_AREA5_IO + 0x80c + 0x16 - 1,
  90                 .flags  = IORESOURCE_MEM,
  91         },
  92         [2] = {
  93                 .start  = IRQ_CF,
  94                 .flags  = IORESOURCE_IRQ,
  95         },
  96 };
  97
  98 static struct pata_platform_info pata_info = {
  99         .ioport_shift   = 1,
 100 };
 101
 102 static struct platform_device cf_ide_device  = {
 103         .name           = "pata_platform",
 104         .id             = -1,
 105         .num_resources  = ARRAY_SIZE(cf_ide_resources),
 106         .resource       = cf_ide_resources,
 107         .dev    = {
 108                 .platform_data  = &pata_info,
 109         },
 110 };
 111
 112 static struct resource heartbeat_resources[] = {
 113         [0] = {
 114                 .start  = PA_OBLED,
 115                 .end    = PA_OBLED,
 116                 .flags  = IORESOURCE_MEM,
 117         },
 118 };
 119
 120 #ifndef CONFIG_SH_R7785RP
 121 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
 122
 123 static struct heartbeat_data heartbeat_data = {
 124         .bit_pos        = heartbeat_bit_pos,
 125         .nr_bits        = ARRAY_SIZE(heartbeat_bit_pos),
 126 };
 127 #endif
 128
 129 static struct platform_device heartbeat_device = {
 130         .name           = "heartbeat",
 131         .id             = -1,
 132
 133         /* R7785RP has a slightly more sensible FPGA.. */
 134 #ifndef CONFIG_SH_R7785RP
 135         .dev    = {
 136                 .platform_data  = &heartbeat_data,
 137         },
 138 #endif
 139         .num_resources  = ARRAY_SIZE(heartbeat_resources),
 140         .resource       = heartbeat_resources,
 141 };
 142
 143 static struct ax_plat_data ax88796_platdata = {
 144         .flags          = AXFLG_HAS_93CX6,
 145         .wordlength     = 2,
 146         .dcr_val        = 0x1,
 147         .rcr_val        = 0x40,
 148 };
 149
 150 static struct resource ax88796_resources[] = {
 151         {
 152 #ifdef CONFIG_SH_R7780RP
 153                 .start  = 0xa5800400,
 154                 .end    = 0xa5800400 + (0x20 * 0x2) - 1,
 155 #else
 156                 .start  = 0xa4100400,
 157                 .end    = 0xa4100400 + (0x20 * 0x2) - 1,
 158 #endif
 159                 .flags  = IORESOURCE_MEM,
 160         },
 161         {
 162                 .start  = IRQ_AX88796,
 163                 .end    = IRQ_AX88796,
 164                 .flags  = IORESOURCE_IRQ,
 165         },
 166 };
 167
 168 static struct platform_device ax88796_device = {
 169         .name           = "ax88796",
 170         .id             = 0,
 171
 172         .dev    = {
 173                 .platform_data = &ax88796_platdata,
 174         },
 175
 176         .num_resources  = ARRAY_SIZE(ax88796_resources),
 177         .resource       = ax88796_resources,
 178 };
 179
 180 static struct resource smbus_resources[] = {
 181         [0] = {
 182                 .start  = PA_SMCR,
 183                 .end    = PA_SMCR + 0x100 - 1,
 184                 .flags  = IORESOURCE_MEM,
 185         },
 186         [1] = {
 187                 .start  = IRQ_SMBUS,
 188                 .end    = IRQ_SMBUS,
 189                 .flags  = IORESOURCE_IRQ,
 190         },
 191 };
 192
 193 static struct platform_device smbus_device = {
 194         .name           = "i2c-highlander",
 195         .id             = 0,
 196         .num_resources  = ARRAY_SIZE(smbus_resources),
 197         .resource       = smbus_resources,
 198 };
 199
 200 static struct i2c_board_info __initdata highlander_i2c_devices[] = {
 201         {
 202                 I2C_BOARD_INFO("r2025sd", 0x32),
 203         },
 204 };
 205
 206 static struct platform_device *r7780rp_devices[] __initdata = {
 207         &r8a66597_usb_host_device,
 208         &m66592_usb_peripheral_device,
 209         &heartbeat_device,
 210         &smbus_device,
 211 #ifndef CONFIG_SH_R7780RP
 212         &ax88796_device,
 213 #endif
 214 };
 215
 216 /*
 217  * The CF is connected using a 16-bit bus where 8-bit operations are
 218  * unsupported. The linux ata driver is however using 8-bit operations, so
 219  * insert a trapped io filter to convert 8-bit operations into 16-bit.
 220  */
 221 static struct trapped_io cf_trapped_io = {
 222         .resource               = cf_ide_resources,
 223         .num_resources          = 2,
 224         .minimum_bus_width      = 16,
 225 };
 226
 227 static int __init r7780rp_devices_setup(void)
 228 {
 229         int ret = 0;
 230
 231 #ifndef CONFIG_SH_R7780RP
 232         if (register_trapped_io(&cf_trapped_io) == 0)
 233                 ret |= platform_device_register(&cf_ide_device);
 234 #endif
 235
 236         ret |= platform_add_devices(r7780rp_devices,
 237                                     ARRAY_SIZE(r7780rp_devices));
 238
 239         ret |= i2c_register_board_info(0, highlander_i2c_devices,
 240                                        ARRAY_SIZE(highlander_i2c_devices));
 241
 242         return ret;
 243 }
 244 device_initcall(r7780rp_devices_setup);
 245
 246 /*
 247  * Platform specific clocks
 248  */
 249 static void ivdr_clk_enable(struct clk *clk)
 250 {
 251         ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
 252 }
 253
 254 static void ivdr_clk_disable(struct clk *clk)
 255 {
 256         ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
 257 }
 258
 259 static struct clk_ops ivdr_clk_ops = {
 260         .enable         = ivdr_clk_enable,
 261         .disable        = ivdr_clk_disable,
 262 };
 263
 264 static struct clk ivdr_clk = {
 265         .name           = "ivdr_clk",
 266         .ops            = &ivdr_clk_ops,
 267 };
 268
 269 static struct clk *r7780rp_clocks[] = {
 270         &ivdr_clk,
 271 };
 272
 273 static void r7780rp_power_off(void)
 274 {
 275         if (mach_is_r7780mp() || mach_is_r7785rp())
 276                 ctrl_outw(0x0001, PA_POFF);
 277 }
 278
 279 /*
 280  * Initialize the board
 281  */
 282 static void __init highlander_setup(char **cmdline_p)
 283 {
 284         u16 ver = ctrl_inw(PA_VERREG);
 285         int i;
 286
 287         printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
 288                          mach_is_r7780rp() ? "R7780RP-1" :
 289                          mach_is_r7780mp() ? "R7780MP"   :
 290                                              "R7785RP");
 291
 292         printk(KERN_INFO "Board version: %d (revision %d), "
 293                          "FPGA version: %d (revision %d)\n",
 294                          (ver >> 12) & 0xf, (ver >> 8) & 0xf,
 295                          (ver >>  4) & 0xf, ver & 0xf);
 296
 297         /*
 298          * Enable the important clocks right away..
 299          */
 300         for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
 301                 struct clk *clk = r7780rp_clocks[i];
 302
 303                 clk_register(clk);
 304                 clk_enable(clk);
 305         }
 306
 307         ctrl_outw(0x0000, PA_OBLED);    /* Clear LED. */
 308
 309         if (mach_is_r7780rp())
 310                 ctrl_outw(0x0001, PA_SDPOW);    /* SD Power ON */
 311
 312         ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);     /* Si13112 */
 313
 314         pm_power_off = r7780rp_power_off;
 315 }
 316
 317 static unsigned char irl2irq[HL_NR_IRL];
 318
 319 static int highlander_irq_demux(int irq)
 320 {
 321         if (irq >= HL_NR_IRL || !irl2irq[irq])
 322                 return irq;
 323
 324         return irl2irq[irq];
 325 }
 326
 327 static void __init highlander_init_irq(void)
 328 {
 329         unsigned char *ucp = highlander_plat_irq_setup();
 330
 331         if (ucp) {
 332                 plat_irq_setup_pins(IRQ_MODE_IRL3210);
 333                 memcpy(irl2irq, ucp, HL_NR_IRL);
 334         }
 335 }
 336
 337 /*
 338  * The Machine Vector
 339  */
 340 static struct sh_machine_vector mv_highlander __initmv = {
 341         .mv_name                = "Highlander",
 342         .mv_setup               = highlander_setup,
 343         .mv_init_irq            = highlander_init_irq,
 344         .mv_irq_demux           = highlander_irq_demux,
 345 };