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 <linux/gpio.h>
  20 #include <linux/leds.h>
  21 #include <asm/machvec.h>
  22 #include <asm/io.h>
  23 #include <cpu/sh7203.h>
  24
  25 static struct smc911x_platdata smc911x_info = {
  26         .flags          = SMC911X_USE_16BIT,
  27         .irq_flags      = IRQF_TRIGGER_LOW,
  28 };
  29
  30 static struct resource smc911x_resources[] = {
  31         [0] = {
  32                 .start          = 0x24000000,
  33                 .end            = 0x24000000 + 0x100,
  34                 .flags          = IORESOURCE_MEM,
  35         },
  36         [1] = {
  37                 .start          = 64,
  38                 .end            = 64,
  39                 .flags          = IORESOURCE_IRQ,
  40         },
  41 };
  42
  43 static struct platform_device smc911x_device = {
  44         .name           = "smc911x",
  45         .id             = -1,
  46         .num_resources  = ARRAY_SIZE(smc911x_resources),
  47         .resource       = smc911x_resources,
  48         .dev            = {
  49                 .platform_data = &smc911x_info,
  50         },
  51 };
  52
  53 static const char *probes[] = { "cmdlinepart", NULL };
  54
  55 static struct mtd_partition *parsed_partitions;
  56
  57 static struct mtd_partition rsk7203_partitions[] = {
  58         {
  59                 .name           = "Bootloader",
  60                 .offset         = 0x00000000,
  61                 .size           = 0x00040000,
  62                 .mask_flags     = MTD_WRITEABLE,
  63         }, {
  64                 .name           = "Kernel",
  65                 .offset         = MTDPART_OFS_NXTBLK,
  66                 .size           = 0x001c0000,
  67         }, {
  68                 .name           = "Flash_FS",
  69                 .offset         = MTDPART_OFS_NXTBLK,
  70                 .size           = MTDPART_SIZ_FULL,
  71         }
  72 };
  73
  74 static struct physmap_flash_data flash_data = {
  75         .width          = 2,
  76 };
  77
  78 static struct resource flash_resource = {
  79         .start          = 0x20000000,
  80         .end            = 0x20400000,
  81         .flags          = IORESOURCE_MEM,
  82 };
  83
  84 static struct platform_device flash_device = {
  85         .name           = "physmap-flash",
  86         .id             = -1,
  87         .resource       = &flash_resource,
  88         .num_resources  = 1,
  89         .dev            = {
  90                 .platform_data = &flash_data,
  91         },
  92 };
  93
  94 static struct mtd_info *flash_mtd;
  95
  96 static struct map_info rsk7203_flash_map = {
  97         .name           = "RSK+ Flash",
  98         .size           = 0x400000,
  99         .bankwidth      = 2,
 100 };
 101
 102 static void __init set_mtd_partitions(void)
 103 {
 104         int nr_parts = 0;
 105
 106         simple_map_init(&rsk7203_flash_map);
 107         flash_mtd = do_map_probe("cfi_probe", &rsk7203_flash_map);
 108         nr_parts = parse_mtd_partitions(flash_mtd, probes,
 109                                         &parsed_partitions, 0);
 110         /* If there is no partition table, used the hard coded table */
 111         if (nr_parts <= 0) {
 112                 flash_data.parts = rsk7203_partitions;
 113                 flash_data.nr_parts = ARRAY_SIZE(rsk7203_partitions);
 114         } else {
 115                 flash_data.nr_parts = nr_parts;
 116                 flash_data.parts = parsed_partitions;
 117         }
 118 }
 119
 120 static struct gpio_led rsk7203_gpio_leds[] = {
 121         {
 122                 .name                   = "green",
 123                 .gpio                   = GPIO_PE10,
 124                 .active_low             = 1,
 125         }, {
 126                 .name                   = "orange",
 127                 .default_trigger        = "nand-disk",
 128                 .gpio                   = GPIO_PE12,
 129                 .active_low             = 1,
 130         }, {
 131                 .name                   = "red:timer",
 132                 .default_trigger        = "timer",
 133                 .gpio                   = GPIO_PC14,
 134                 .active_low             = 1,
 135         }, {
 136                 .name                   = "red:heartbeat",
 137                 .default_trigger        = "heartbeat",
 138                 .gpio                   = GPIO_PE11,
 139                 .active_low             = 1,
 140         },
 141 };
 142
 143 static struct gpio_led_platform_data rsk7203_gpio_leds_info = {
 144         .leds           = rsk7203_gpio_leds,
 145         .num_leds       = ARRAY_SIZE(rsk7203_gpio_leds),
 146 };
 147
 148 static struct platform_device led_device = {
 149         .name           = "leds-gpio",
 150         .id             = -1,
 151         .dev            = {
 152                 .platform_data  = &rsk7203_gpio_leds_info,
 153         },
 154 };
 155
 156 static struct platform_device *rsk7203_devices[] __initdata = {
 157         &smc911x_device,
 158         &flash_device,
 159         &led_device,
 160 };
 161
 162 static int __init rsk7203_devices_setup(void)
 163 {
 164         /* Select pins for SCIF0 */
 165         gpio_request(GPIO_FN_TXD0, NULL);
 166         gpio_request(GPIO_FN_RXD0, NULL);
 167
 168         set_mtd_partitions();
 169         return platform_add_devices(rsk7203_devices,
 170                                     ARRAY_SIZE(rsk7203_devices));
 171 }
 172 device_initcall(rsk7203_devices_setup);
 173
 174 /*
 175  * The Machine Vector
 176  */
 177 static struct sh_machine_vector mv_rsk7203 __initmv = {
 178         .mv_name        = "RSK+7203",
 179 };