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 - 2007 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 <net/ax88796.h>
  21 #include <asm/machvec.h>
  22 #include <asm/r7780rp.h>
  23 #include <asm/clock.h>
  24 #include <asm/heartbeat.h>
  25 #include <asm/io.h>
  26 #include <asm/io_trapped.h>
  27
  28 static struct resource r8a66597_usb_host_resources[] = {
  29         [0] = {
  30                 .name   = "r8a66597_hcd",
  31                 .start  = 0xA4200000,
  32                 .end    = 0xA42000FF,
  33                 .flags  = IORESOURCE_MEM,
  34         },
  35         [1] = {
  36                 .name   = "r8a66597_hcd",
  37                 .start  = IRQ_EXT1,             /* irq number */
  38                 .end    = IRQ_EXT1,
  39                 .flags  = IORESOURCE_IRQ,
  40         },
  41 };
  42
  43 static struct platform_device r8a66597_usb_host_device = {
  44         .name           = "r8a66597_hcd",
  45         .id             = -1,
  46         .dev = {
  47                 .dma_mask               = NULL,         /* don't use dma */
  48                 .coherent_dma_mask      = 0xffffffff,
  49         },
  50         .num_resources  = ARRAY_SIZE(r8a66597_usb_host_resources),
  51         .resource       = r8a66597_usb_host_resources,
  52 };
  53
  54 static struct resource m66592_usb_peripheral_resources[] = {
  55         [0] = {
  56                 .name   = "m66592_udc",
  57                 .start  = 0xb0000000,
  58                 .end    = 0xb00000FF,
  59                 .flags  = IORESOURCE_MEM,
  60         },
  61         [1] = {
  62                 .name   = "m66592_udc",
  63                 .start  = IRQ_EXT4,             /* irq number */
  64                 .end    = IRQ_EXT4,
  65                 .flags  = IORESOURCE_IRQ,
  66         },
  67 };
  68
  69 static struct platform_device m66592_usb_peripheral_device = {
  70         .name           = "m66592_udc",
  71         .id             = -1,
  72         .dev = {
  73                 .dma_mask               = NULL,         /* don't use dma */
  74                 .coherent_dma_mask      = 0xffffffff,
  75         },
  76         .num_resources  = ARRAY_SIZE(m66592_usb_peripheral_resources),
  77         .resource       = m66592_usb_peripheral_resources,
  78 };
  79
  80 static struct resource cf_ide_resources[] = {
  81         [0] = {
  82                 .start  = PA_AREA5_IO + 0x1000,
  83                 .end    = PA_AREA5_IO + 0x1000 + 0x08 - 1,
  84                 .flags  = IORESOURCE_MEM,
  85         },
  86         [1] = {
  87                 .start  = PA_AREA5_IO + 0x80c,
  88                 .end    = PA_AREA5_IO + 0x80c + 0x16 - 1,
  89                 .flags  = IORESOURCE_MEM,
  90         },
  91         [2] = {
  92                 .start  = IRQ_CF,
  93                 .flags  = IORESOURCE_IRQ,
  94         },
  95 };
  96
  97 static struct pata_platform_info pata_info = {
  98         .ioport_shift   = 1,
  99 };
 100
 101 static struct platform_device cf_ide_device  = {
 102         .name           = "pata_platform",
 103         .id             = -1,
 104         .num_resources  = ARRAY_SIZE(cf_ide_resources),
 105         .resource       = cf_ide_resources,
 106         .dev    = {
 107                 .platform_data  = &pata_info,
 108         },
 109 };
 110
 111 static struct resource heartbeat_resources[] = {
 112         [0] = {
 113                 .start  = PA_OBLED,
 114                 .end    = PA_OBLED,
 115                 .flags  = IORESOURCE_MEM,
 116         },
 117 };
 118
 119 #ifndef CONFIG_SH_R7785RP
 120 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
 121
 122 static struct heartbeat_data heartbeat_data = {
 123         .bit_pos        = heartbeat_bit_pos,
 124         .nr_bits        = ARRAY_SIZE(heartbeat_bit_pos),
 125 };
 126 #endif
 127
 128 static struct platform_device heartbeat_device = {
 129         .name           = "heartbeat",
 130         .id             = -1,
 131
 132         /* R7785RP has a slightly more sensible FPGA.. */
 133 #ifndef CONFIG_SH_R7785RP
 134         .dev    = {
 135                 .platform_data  = &heartbeat_data,
 136         },
 137 #endif
 138         .num_resources  = ARRAY_SIZE(heartbeat_resources),
 139         .resource       = heartbeat_resources,
 140 };
 141
 142 static struct ax_plat_data ax88796_platdata = {
 143         .flags          = AXFLG_HAS_93CX6,
 144         .wordlength     = 2,
 145         .dcr_val        = 0x1,
 146         .rcr_val        = 0x40,
 147 };
 148
 149 static struct resource ax88796_resources[] = {
 150         {
 151 #ifdef CONFIG_SH_R7780RP
 152                 .start  = 0xa5800400,
 153                 .end    = 0xa5800400 + (0x20 * 0x2) - 1,
 154 #else
 155                 .start  = 0xa4100400,
 156                 .end    = 0xa4100400 + (0x20 * 0x2) - 1,
 157 #endif
 158                 .flags  = IORESOURCE_MEM,
 159         },
 160         {
 161                 .start  = IRQ_AX88796,
 162                 .end    = IRQ_AX88796,
 163                 .flags  = IORESOURCE_IRQ,
 164         },
 165 };
 166
 167 static struct platform_device ax88796_device = {
 168         .name           = "ax88796",
 169         .id             = 0,
 170
 171         .dev    = {
 172                 .platform_data = &ax88796_platdata,
 173         },
 174
 175         .num_resources  = ARRAY_SIZE(ax88796_resources),
 176         .resource       = ax88796_resources,
 177 };
 178
 179
 180 static struct platform_device *r7780rp_devices[] __initdata = {
 181         &r8a66597_usb_host_device,
 182         &m66592_usb_peripheral_device,
 183         &heartbeat_device,
 184 #ifndef CONFIG_SH_R7780RP
 185         &ax88796_device,
 186 #endif
 187 };
 188
 189 /*
 190  * The CF is connected using a 16-bit bus where 8-bit operations are
 191  * unsupported. The linux ata driver is however using 8-bit operations, so
 192  * insert a trapped io filter to convert 8-bit operations into 16-bit.
 193  */
 194 static struct trapped_io cf_trapped_io = {
 195         .resource               = cf_ide_resources,
 196         .num_resources          = 2,
 197         .minimum_bus_width      = 16,
 198 };
 199
 200 static int __init r7780rp_devices_setup(void)
 201 {
 202 #ifndef CONFIG_SH_R7780RP
 203         if (register_trapped_io(&cf_trapped_io) == 0)
 204                 platform_device_register(&cf_ide_device);
 205 #endif
 206         return platform_add_devices(r7780rp_devices,
 207                                     ARRAY_SIZE(r7780rp_devices));
 208 }
 209 device_initcall(r7780rp_devices_setup);
 210
 211 /*
 212  * Platform specific clocks
 213  */
 214 static void ivdr_clk_enable(struct clk *clk)
 215 {
 216         ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
 217 }
 218
 219 static void ivdr_clk_disable(struct clk *clk)
 220 {
 221         ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
 222 }
 223
 224 static struct clk_ops ivdr_clk_ops = {
 225         .enable         = ivdr_clk_enable,
 226         .disable        = ivdr_clk_disable,
 227 };
 228
 229 static struct clk ivdr_clk = {
 230         .name           = "ivdr_clk",
 231         .ops            = &ivdr_clk_ops,
 232 };
 233
 234 static struct clk *r7780rp_clocks[] = {
 235         &ivdr_clk,
 236 };
 237
 238 static void r7780rp_power_off(void)
 239 {
 240         if (mach_is_r7780mp() || mach_is_r7785rp())
 241                 ctrl_outw(0x0001, PA_POFF);
 242 }
 243
 244 /*
 245  * Initialize the board
 246  */
 247 static void __init highlander_setup(char **cmdline_p)
 248 {
 249         u16 ver = ctrl_inw(PA_VERREG);
 250         int i;
 251
 252         printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
 253                          mach_is_r7780rp() ? "R7780RP-1" :
 254                          mach_is_r7780mp() ? "R7780MP"   :
 255                                              "R7785RP");
 256
 257         printk(KERN_INFO "Board version: %d (revision %d), "
 258                          "FPGA version: %d (revision %d)\n",
 259                          (ver >> 12) & 0xf, (ver >> 8) & 0xf,
 260                          (ver >>  4) & 0xf, ver & 0xf);
 261
 262         /*
 263          * Enable the important clocks right away..
 264          */
 265         for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
 266                 struct clk *clk = r7780rp_clocks[i];
 267
 268                 clk_register(clk);
 269                 clk_enable(clk);
 270         }
 271
 272         ctrl_outw(0x0000, PA_OBLED);    /* Clear LED. */
 273
 274         if (mach_is_r7780rp())
 275                 ctrl_outw(0x0001, PA_SDPOW);    /* SD Power ON */
 276
 277         ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);     /* Si13112 */
 278
 279         pm_power_off = r7780rp_power_off;
 280 }
 281
 282 static unsigned char irl2irq[HL_NR_IRL];
 283
 284 int highlander_irq_demux(int irq)
 285 {
 286         if (irq >= HL_NR_IRL || !irl2irq[irq])
 287                 return irq;
 288
 289         return irl2irq[irq];
 290 }
 291
 292 void __init highlander_init_irq(void)
 293 {
 294         unsigned char *ucp = NULL;
 295
 296         do {
 297 #ifdef CONFIG_SH_R7780MP
 298                 ucp = highlander_init_irq_r7780mp();
 299                 if (ucp)
 300                         break;
 301 #endif
 302 #ifdef CONFIG_SH_R7785RP
 303                 ucp = highlander_init_irq_r7785rp();
 304                 if (ucp)
 305                         break;
 306 #endif
 307 #ifdef CONFIG_SH_R7780RP
 308                 ucp = highlander_init_irq_r7780rp();
 309                 if (ucp)
 310                         break;
 311 #endif
 312         } while (0);
 313
 314         if (ucp) {
 315                 plat_irq_setup_pins(IRQ_MODE_IRL3210);
 316                 memcpy(irl2irq, ucp, HL_NR_IRL);
 317         }
 318 }
 319
 320 /*
 321  * The Machine Vector
 322  */
 323 static struct sh_machine_vector mv_highlander __initmv = {
 324         .mv_name                = "Highlander",
 325         .mv_setup               = highlander_setup,
 326         .mv_init_irq            = highlander_init_irq,
 327         .mv_irq_demux           = highlander_irq_demux,
 328 };