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