arch/sh/boards/board-urquell.c

   1 /*
   2  * Renesas Technology Corp. SH7786 Urquell Support.
   3  *
   4  * Copyright (C) 2008  Kuninori Morimoto <morimoto.kuninori@renesas.com>
   5  * Copyright (C) 2008  Yoshihiro Shimoda
   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/platform_device.h>
  13 #include <linux/fb.h>
  14 #include <linux/mtd/physmap.h>
  15 #include <linux/delay.h>
  16 #include <linux/gpio.h>
  17 #include <linux/irq.h>
  18 #include <mach/urquell.h>
  19 #include <cpu/sh7786.h>
  20 #include <asm/heartbeat.h>
  21 #include <asm/sizes.h>
  22
  23 static struct resource heartbeat_resources[] = {
  24         [0] = {
  25                 .start  = BOARDREG(SLEDR),
  26                 .end    = BOARDREG(SLEDR),
  27                 .flags  = IORESOURCE_MEM,
  28         },
  29 };
  30
  31 static struct heartbeat_data heartbeat_data = {
  32         .regsize = 16,
  33 };
  34
  35 static struct platform_device heartbeat_device = {
  36         .name           = "heartbeat",
  37         .id             = -1,
  38         .dev    = {
  39                 .platform_data  = &heartbeat_data,
  40         },
  41         .num_resources  = ARRAY_SIZE(heartbeat_resources),
  42         .resource       = heartbeat_resources,
  43 };
  44
  45 static struct mtd_partition nor_flash_partitions[] = {
  46         {
  47                 .name           = "loader",
  48                 .offset         = 0x00000000,
  49                 .size           = SZ_512K,
  50                 .mask_flags     = MTD_WRITEABLE,        /* Read-only */
  51         },
  52         {
  53                 .name           = "bootenv",
  54                 .offset         = MTDPART_OFS_APPEND,
  55                 .size           = SZ_512K,
  56                 .mask_flags     = MTD_WRITEABLE,        /* Read-only */
  57         },
  58         {
  59                 .name           = "kernel",
  60                 .offset         = MTDPART_OFS_APPEND,
  61                 .size           = SZ_4M,
  62         },
  63         {
  64                 .name           = "data",
  65                 .offset         = MTDPART_OFS_APPEND,
  66                 .size           = MTDPART_SIZ_FULL,
  67         },
  68 };
  69
  70 static struct physmap_flash_data nor_flash_data = {
  71         .width          = 2,
  72         .parts          = nor_flash_partitions,
  73         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
  74 };
  75
  76 static struct resource nor_flash_resources[] = {
  77         [0] = {
  78                 .start  = NOR_FLASH_ADDR,
  79                 .end    = NOR_FLASH_ADDR + NOR_FLASH_SIZE - 1,
  80                 .flags  = IORESOURCE_MEM,
  81         }
  82 };
  83
  84 static struct platform_device nor_flash_device = {
  85         .name           = "physmap-flash",
  86         .dev            = {
  87                 .platform_data  = &nor_flash_data,
  88         },
  89         .num_resources  = ARRAY_SIZE(nor_flash_resources),
  90         .resource       = nor_flash_resources,
  91 };
  92
  93 static struct platform_device *urquell_devices[] __initdata = {
  94         &heartbeat_device,
  95         &nor_flash_device,
  96 };
  97
  98 static int __init urquell_devices_setup(void)
  99 {
 100         /* USB */
 101         gpio_request(GPIO_FN_USB_OVC0,  NULL);
 102         gpio_request(GPIO_FN_USB_PENC0, NULL);
 103
 104         return platform_add_devices(urquell_devices,
 105                                     ARRAY_SIZE(urquell_devices));
 106 }
 107 device_initcall(urquell_devices_setup);
 108
 109 static void urquell_power_off(void)
 110 {
 111         __raw_writew(0xa5a5, UBOARDREG(SRSTR));
 112 }
 113
 114 /* Initialize the board */
 115 static void __init urquell_setup(char **cmdline_p)
 116 {
 117         printk(KERN_INFO "Renesas Technology Corp. Urquell support.\n");
 118
 119         pm_power_off = urquell_power_off;
 120 }
 121
 122 /*
 123  * The Machine Vector
 124  */
 125 static struct sh_machine_vector mv_urquell __initmv = {
 126         .mv_name        = "Urquell",
 127         .mv_setup       = urquell_setup,
 128 };