LXR linux/arch/sh/boards/mach-rsk/setup.c

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