release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-ixp23xx/espresso.c

   1 /*
   2  * arch/arm/mach-ixp23xx/espresso.c
   3  *
   4  * Double Espresso-specific routines
   5  *
   6  * Author: Lennert Buytenhek <buytenh@wantstofly.org>
   7  *
   8  * This file is licensed under the terms of the GNU General Public
   9  * License version 2. This program is licensed "as is" without any
  10  * warranty of any kind, whether express or implied.
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/spinlock.h>
  16 #include <linux/sched.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/serial.h>
  19 #include <linux/tty.h>
  20 #include <linux/bitops.h>
  21 #include <linux/ioport.h>
  22 #include <linux/serial_8250.h>
  23 #include <linux/serial_core.h>
  24 #include <linux/device.h>
  25 #include <linux/mm.h>
  26 #include <linux/pci.h>
  27 #include <linux/mtd/physmap.h>
  28
  29 #include <asm/types.h>
  30 #include <asm/setup.h>
  31 #include <asm/memory.h>
  32 #include <mach/hardware.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/irq.h>
  35 #include <asm/system.h>
  36 #include <asm/tlbflush.h>
  37 #include <asm/pgtable.h>
  38
  39 #include <asm/mach/map.h>
  40 #include <asm/mach/irq.h>
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/pci.h>
  43
  44 static int __init espresso_pci_init(void)
  45 {
  46         if (machine_is_espresso())
  47                 ixp23xx_pci_slave_init();
  48
  49         return 0;
  50 };
  51 subsys_initcall(espresso_pci_init);
  52
  53 static struct physmap_flash_data espresso_flash_data = {
  54         .width          = 2,
  55 };
  56
  57 static struct resource espresso_flash_resource = {
  58         .start          = 0x90000000,
  59         .end            = 0x91ffffff,
  60         .flags          = IORESOURCE_MEM,
  61 };
  62
  63 static struct platform_device espresso_flash = {
  64         .name           = "physmap-flash",
  65         .id             = 0,
  66         .dev            = {
  67                 .platform_data  = &espresso_flash_data,
  68         },
  69         .num_resources  = 1,
  70         .resource       = &espresso_flash_resource,
  71 };
  72
  73 static void __init espresso_init(void)
  74 {
  75         platform_device_register(&espresso_flash);
  76
  77         /*
  78          * Mark flash as writeable.
  79          */
  80         IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE;
  81         IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE;
  82
  83         ixp23xx_sys_init();
  84 }
  85
  86 MACHINE_START(ESPRESSO, "IP Fabrics Double Espresso")
  87         /* Maintainer: Lennert Buytenhek */
  88         .phys_io        = IXP23XX_PERIPHERAL_PHYS,
  89         .io_pg_offst    = ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc,
  90         .map_io         = ixp23xx_map_io,
  91         .init_irq       = ixp23xx_init_irq,
  92         .timer          = &ixp23xx_timer,
  93         .boot_params    = 0x00000100,
  94         .init_machine   = espresso_init,
  95 MACHINE_END