kernel/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/sh_intc.h>
  27 #include <linux/i2c.h>
  28 #include <linux/mtd/physmap.h>
  29 #include <asm/machvec.h>
  30 #include <asm/io.h>
  31 #include <asm/addrspace.h>
  32 #include <asm/delay.h>
  33 #include <asm/i2c-sh7760.h>
  34 #include <asm/sizes.h>
  35
  36 /* Bus state controller registers for CS4 area */
  37 #define BSC_CS4BCR      0xA4FD0010
  38 #define BSC_CS4WCR      0xA4FD0030
  39
  40 #define SMC_IOBASE      0xA2000000
  41 #define SMC_IO_OFFSET   0x300
  42 #define SMC_IOADDR      (SMC_IOBASE + SMC_IO_OFFSET)
  43
  44 /* NOR flash */
  45 static struct mtd_partition edosk7760_nor_flash_partitions[] = {
  46         {
  47                 .name = "bootloader",
  48                 .offset = 0,
  49                 .size = SZ_256K,
  50                 .mask_flags = MTD_WRITEABLE,    /* Read-only */
  51         }, {
  52                 .name = "kernel",
  53                 .offset = MTDPART_OFS_APPEND,
  54                 .size = SZ_2M,
  55         }, {
  56                 .name = "fs",
  57                 .offset = MTDPART_OFS_APPEND,
  58                 .size = (26 << 20),
  59         }, {
  60                 .name = "other",
  61                 .offset = MTDPART_OFS_APPEND,
  62                 .size = MTDPART_SIZ_FULL,
  63         },
  64 };
  65
  66 static struct physmap_flash_data edosk7760_nor_flash_data = {
  67         .width          = 4,
  68         .parts          = edosk7760_nor_flash_partitions,
  69         .nr_parts       = ARRAY_SIZE(edosk7760_nor_flash_partitions),
  70 };
  71
  72 static struct resource edosk7760_nor_flash_resources[] = {
  73         [0] = {
  74                 .name   = "NOR Flash",
  75                 .start  = 0x00000000,
  76                 .end    = 0x00000000 + SZ_32M - 1,
  77                 .flags  = IORESOURCE_MEM,
  78         }
  79 };
  80
  81 static struct platform_device edosk7760_nor_flash_device = {
  82         .name           = "physmap-flash",
  83         .resource       = edosk7760_nor_flash_resources,
  84         .num_resources  = ARRAY_SIZE(edosk7760_nor_flash_resources),
  85         .dev            = {
  86                 .platform_data = &edosk7760_nor_flash_data,
  87         },
  88 };
  89
  90 /* i2c initialization functions */
  91 static struct sh7760_i2c_platdata i2c_pd = {
  92         .speed_khz      = 400,
  93 };
  94
  95 static struct resource sh7760_i2c1_res[] = {
  96         {
  97                 .start  = SH7760_I2C1_MMIO,
  98                 .end    = SH7760_I2C1_MMIOEND,
  99                 .flags  = IORESOURCE_MEM,
 100         },{
 101                 .start  = evt2irq(0x9e0),
 102                 .end    = evt2irq(0x9e0),
 103                 .flags  = IORESOURCE_IRQ,
 104         },
 105 };
 106
 107 static struct platform_device sh7760_i2c1_dev = {
 108         .dev    = {
 109                 .platform_data  = &i2c_pd,
 110         },
 111
 112         .name           = SH7760_I2C_DEVNAME,
 113         .id             = 1,
 114         .resource       = sh7760_i2c1_res,
 115         .num_resources  = ARRAY_SIZE(sh7760_i2c1_res),
 116 };
 117
 118 static struct resource sh7760_i2c0_res[] = {
 119         {
 120                 .start  = SH7760_I2C0_MMIO,
 121                 .end    = SH7760_I2C0_MMIOEND,
 122                 .flags  = IORESOURCE_MEM,
 123         }, {
 124                 .start  = evt2irq(0x9c0),
 125                 .end    = evt2irq(0x9c0),
 126                 .flags  = IORESOURCE_IRQ,
 127         },
 128 };
 129
 130 static struct platform_device sh7760_i2c0_dev = {
 131         .dev    = {
 132                 .platform_data  = &i2c_pd,
 133         },
 134         .name           = SH7760_I2C_DEVNAME,
 135         .id             = 0,
 136         .resource       = sh7760_i2c0_res,
 137         .num_resources  = ARRAY_SIZE(sh7760_i2c0_res),
 138 };
 139
 140 /* eth initialization functions */
 141 static struct smc91x_platdata smc91x_info = {
 142         .flags = SMC91X_USE_16BIT | SMC91X_IO_SHIFT_1 | IORESOURCE_IRQ_LOWLEVEL,
 143 };
 144
 145 static struct resource smc91x_res[] = {
 146         [0] = {
 147                 .start  = SMC_IOADDR,
 148                 .end    = SMC_IOADDR + SZ_32 - 1,
 149                 .flags  = IORESOURCE_MEM,
 150         },
 151         [1] = {
 152                 .start  = evt2irq(0x2a0),
 153                 .end    = evt2irq(0x2a0),
 154                 .flags  = IORESOURCE_IRQ ,
 155         }
 156 };
 157
 158 static struct platform_device smc91x_dev = {
 159         .name           = "smc91x",
 160         .id             = -1,
 161         .num_resources  = ARRAY_SIZE(smc91x_res),
 162         .resource       = smc91x_res,
 163
 164         .dev    = {
 165                 .platform_data  = &smc91x_info,
 166         },
 167 };
 168
 169 /* platform init code */
 170 static struct platform_device *edosk7760_devices[] __initdata = {
 171         &smc91x_dev,
 172         &edosk7760_nor_flash_device,
 173         &sh7760_i2c0_dev,
 174         &sh7760_i2c1_dev,
 175 };
 176
 177 static int __init init_edosk7760_devices(void)
 178 {
 179         plat_irq_setup_pins(IRQ_MODE_IRQ);
 180
 181         return platform_add_devices(edosk7760_devices,
 182                                     ARRAY_SIZE(edosk7760_devices));
 183 }
 184 device_initcall(init_edosk7760_devices);
 185
 186 /*
 187  * The Machine Vector
 188  */
 189 struct sh_machine_vector mv_edosk7760 __initmv = {
 190         .mv_name        = "EDOSK7760",
 191 };