release/src-rt-6.x.4708/linux/linux-2.6.36/arch/sh/boards/board-edosk7760.c

   1 /*
   2  * Renesas Europe EDOSK7760 Board Support
   3  *
   4  * Copyright (C) 2008 SPES Societa' Progettazione Elettronica e Software Ltd.
   5  * Author: Luca Santini <luca.santini@spesonline.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21 #include <linux/init.h>
  22 #include <linux/types.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/smc91x.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/i2c.h>
  27 #include <linux/mtd/physmap.h>
  28 #include <asm/machvec.h>
  29 #include <asm/io.h>
  30 #include <asm/addrspace.h>
  31 #include <asm/delay.h>
  32 #include <asm/i2c-sh7760.h>
  33 #include <asm/sizes.h>
  34
  35 /* Bus state controller registers for CS4 area */
  36 #define BSC_CS4BCR      0xA4FD0010
  37 #define BSC_CS4WCR      0xA4FD0030
  38
  39 #define SMC_IOBASE      0xA2000000
  40 #define SMC_IO_OFFSET   0x300
  41 #define SMC_IOADDR      (SMC_IOBASE + SMC_IO_OFFSET)
  42
  43 #define ETHERNET_IRQ    5
  44
  45 /* NOR flash */
  46 static struct mtd_partition edosk7760_nor_flash_partitions[] = {
  47         {
  48                 .name = "bootloader",
  49                 .offset = 0,
  50                 .size = SZ_256K,
  51                 .mask_flags = MTD_WRITEABLE,    /* Read-only */
  52         }, {
  53                 .name = "kernel",
  54                 .offset = MTDPART_OFS_APPEND,
  55                 .size = SZ_2M,
  56         }, {
  57                 .name = "fs",
  58                 .offset = MTDPART_OFS_APPEND,
  59                 .size = SZ_26M,
  60         }, {
  61                 .name = "other",
  62                 .offset = MTDPART_OFS_APPEND,
  63                 .size = MTDPART_SIZ_FULL,
  64         },
  65 };
  66
  67 static struct physmap_flash_data edosk7760_nor_flash_data = {
  68         .width          = 4,
  69         .parts          = edosk7760_nor_flash_partitions,
  70         .nr_parts       = ARRAY_SIZE(edosk7760_nor_flash_partitions),
  71 };
  72
  73 static struct resource edosk7760_nor_flash_resources[] = {
  74         [0] = {
  75                 .name   = "NOR Flash",
  76                 .start  = 0x00000000,
  77                 .end    = 0x00000000 + SZ_32M - 1,
  78                 .flags  = IORESOURCE_MEM,
  79         }
  80 };
  81
  82 static struct platform_device edosk7760_nor_flash_device = {
  83         .name           = "physmap-flash",
  84         .resource       = edosk7760_nor_flash_resources,
  85         .num_resources  = ARRAY_SIZE(edosk7760_nor_flash_resources),
  86         .dev            = {
  87                 .platform_data = &edosk7760_nor_flash_data,
  88         },
  89 };
  90
  91 /* i2c initialization functions */
  92 static struct sh7760_i2c_platdata i2c_pd = {
  93         .speed_khz      = 400,
  94 };
  95
  96 static struct resource sh7760_i2c1_res[] = {
  97         {
  98                 .start  = SH7760_I2C1_MMIO,
  99                 .end    = SH7760_I2C1_MMIOEND,
 100                 .flags  = IORESOURCE_MEM,
 101         },{
 102                 .start  = SH7760_I2C1_IRQ,
 103                 .end    = SH7760_I2C1_IRQ,
 104                 .flags  = IORESOURCE_IRQ,
 105         },
 106 };
 107
 108 static struct platform_device sh7760_i2c1_dev = {
 109         .dev    = {
 110                 .platform_data  = &i2c_pd,
 111         },
 112
 113         .name           = SH7760_I2C_DEVNAME,
 114         .id             = 1,
 115         .resource       = sh7760_i2c1_res,
 116         .num_resources  = ARRAY_SIZE(sh7760_i2c1_res),
 117 };
 118
 119 static struct resource sh7760_i2c0_res[] = {
 120         {
 121                 .start  = SH7760_I2C0_MMIO,
 122                 .end    = SH7760_I2C0_MMIOEND,
 123                 .flags  = IORESOURCE_MEM,
 124         }, {
 125                 .start  = SH7760_I2C0_IRQ,
 126                 .end    = SH7760_I2C0_IRQ,
 127                 .flags  = IORESOURCE_IRQ,
 128         },
 129 };
 130
 131 static struct platform_device sh7760_i2c0_dev = {
 132         .dev    = {
 133                 .platform_data  = &i2c_pd,
 134         },
 135         .name           = SH7760_I2C_DEVNAME,
 136         .id             = 0,
 137         .resource       = sh7760_i2c0_res,
 138         .num_resources  = ARRAY_SIZE(sh7760_i2c0_res),
 139 };
 140
 141 /* eth initialization functions */
 142 static struct smc91x_platdata smc91x_info = {
 143         .flags = SMC91X_USE_16BIT | SMC91X_IO_SHIFT_1 | IORESOURCE_IRQ_LOWLEVEL,
 144 };
 145
 146 static struct resource smc91x_res[] = {
 147         [0] = {
 148                 .start  = SMC_IOADDR,
 149                 .end    = SMC_IOADDR + SZ_32 - 1,
 150                 .flags  = IORESOURCE_MEM,
 151         },
 152         [1] = {
 153                 .start  = ETHERNET_IRQ,
 154                 .end    = ETHERNET_IRQ,
 155                 .flags  = IORESOURCE_IRQ ,
 156         }
 157 };
 158
 159 static struct platform_device smc91x_dev = {
 160         .name           = "smc91x",
 161         .id             = -1,
 162         .num_resources  = ARRAY_SIZE(smc91x_res),
 163         .resource       = smc91x_res,
 164
 165         .dev    = {
 166                 .platform_data  = &smc91x_info,
 167         },
 168 };
 169
 170 /* platform init code */
 171 static struct platform_device *edosk7760_devices[] __initdata = {
 172         &smc91x_dev,
 173         &edosk7760_nor_flash_device,
 174         &sh7760_i2c0_dev,
 175         &sh7760_i2c1_dev,
 176 };
 177
 178 static int __init init_edosk7760_devices(void)
 179 {
 180         plat_irq_setup_pins(IRQ_MODE_IRQ);
 181
 182         return platform_add_devices(edosk7760_devices,
 183                                     ARRAY_SIZE(edosk7760_devices));
 184 }
 185 __initcall(init_edosk7760_devices);
 186
 187 /*
 188  * The Machine Vector
 189  */
 190 struct sh_machine_vector mv_edosk7760 __initmv = {
 191         .mv_name        = "EDOSK7760",
 192         .mv_nr_irqs     = 128,
 193 };