arch/sh/boards/board-rsk7203.c

   1 /*
   2  * Renesas Technology Europe RSK+ 7203 Support.
   3  *
   4  * Copyright (C) 2008 Paul Mundt
   5  *
   6  * This file is subject to the terms and conditions of the GNU General Public
   7  * License.  See the file "COPYING" in the main directory of this archive
   8  * for more details.
   9  */
  10 #include <linux/init.h>
  11 #include <linux/types.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/interrupt.h>
  14 #include <linux/mtd/mtd.h>
  15 #include <linux/mtd/partitions.h>
  16 #include <linux/mtd/physmap.h>
  17 #include <linux/mtd/map.h>
  18 #include <linux/smc911x.h>
  19 #include <asm/machvec.h>
  20 #include <asm/io.h>
  21
  22 static struct smc911x_platdata smc911x_info = {
  23         .flags          = SMC911X_USE_16BIT,
  24         .irq_flags      = IRQF_TRIGGER_LOW,
  25 };
  26
  27 static struct resource smc911x_resources[] = {
  28         [0] = {
  29                 .start          = 0x24000000,
  30                 .end            = 0x24000000 + 0x100,
  31                 .flags          = IORESOURCE_MEM,
  32         },
  33         [1] = {
  34                 .start          = 64,
  35                 .end            = 64,
  36                 .flags          = IORESOURCE_IRQ,
  37         },
  38 };
  39
  40 static struct platform_device smc911x_device = {
  41         .name           = "smc911x",
  42         .id             = -1,
  43         .num_resources  = ARRAY_SIZE(smc911x_resources),
  44         .resource       = smc911x_resources,
  45         .dev            = {
  46                 .platform_data = &smc911x_info,
  47         },
  48 };
  49
  50 static const char *probes[] = { "cmdlinepart", NULL };
  51
  52 static struct mtd_partition *parsed_partitions;
  53
  54 static struct mtd_partition rsk7203_partitions[] = {
  55         {
  56                 .name           = "Bootloader",
  57                 .offset         = 0x00000000,
  58                 .size           = 0x00040000,
  59                 .mask_flags     = MTD_WRITEABLE,
  60         }, {
  61                 .name           = "Kernel",
  62                 .offset         = MTDPART_OFS_NXTBLK,
  63                 .size           = 0x001c0000,
  64         }, {
  65                 .name           = "Flash_FS",
  66                 .offset         = MTDPART_OFS_NXTBLK,
  67                 .size           = MTDPART_SIZ_FULL,
  68         }
  69 };
  70
  71 static struct physmap_flash_data flash_data = {
  72         .width          = 2,
  73 };
  74
  75 static struct resource flash_resource = {
  76         .start          = 0x20000000,
  77         .end            = 0x20400000,
  78         .flags          = IORESOURCE_MEM,
  79 };
  80
  81 static struct platform_device flash_device = {
  82         .name           = "physmap-flash",
  83         .id             = -1,
  84         .resource       = &flash_resource,
  85         .num_resources  = 1,
  86         .dev            = {
  87                 .platform_data = &flash_data,
  88         },
  89 };
  90
  91 static struct mtd_info *flash_mtd;
  92
  93 static struct map_info rsk7203_flash_map = {
  94         .name           = "RSK+ Flash",
  95         .size           = 0x400000,
  96         .bankwidth      = 2,
  97 };
  98
  99 static void __init set_mtd_partitions(void)
 100 {
 101         int nr_parts = 0;
 102
 103         simple_map_init(&rsk7203_flash_map);
 104         flash_mtd = do_map_probe("cfi_probe", &rsk7203_flash_map);
 105         nr_parts = parse_mtd_partitions(flash_mtd, probes,
 106                                         &parsed_partitions, 0);
 107         /* If there is no partition table, used the hard coded table */
 108         if (nr_parts <= 0) {
 109                 flash_data.parts = rsk7203_partitions;
 110                 flash_data.nr_parts = ARRAY_SIZE(rsk7203_partitions);
 111         } else {
 112                 flash_data.nr_parts = nr_parts;
 113                 flash_data.parts = parsed_partitions;
 114         }
 115 }
 116
 117
 118 static struct platform_device *rsk7203_devices[] __initdata = {
 119         &smc911x_device,
 120         &flash_device,
 121 };
 122
 123 static int __init rsk7203_devices_setup(void)
 124 {
 125         set_mtd_partitions();
 126         return platform_add_devices(rsk7203_devices,
 127                                     ARRAY_SIZE(rsk7203_devices));
 128 }
 129 device_initcall(rsk7203_devices_setup);
 130
 131 /*
 132  * The Machine Vector
 133  */
 134 static struct sh_machine_vector mv_rsk7203 __initmv = {
 135         .mv_name        = "RSK+7203",
 136 };