kernel/2.6.29.6-aldebaran-rt/arch/arm/mach-pxa/colibri.c

   1 /*
   2  *  linux/arch/arm/mach-pxa/colibri.c
   3  *
   4  *  Support for Toradex PXA27x based Colibri module
   5  *  Daniel Mack <daniel@caiaq.de>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  */
  11
  12 #include <linux/init.h>
  13 #include <linux/kernel.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/sysdev.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/bitops.h>
  18 #include <linux/ioport.h>
  19 #include <linux/delay.h>
  20 #include <linux/mtd/mtd.h>
  21 #include <linux/mtd/partitions.h>
  22 #include <linux/mtd/physmap.h>
  23 #include <asm/mach-types.h>
  24 #include <mach/hardware.h>
  25 #include <asm/irq.h>
  26 #include <asm/sizes.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29 #include <asm/mach/irq.h>
  30 #include <asm/mach/flash.h>
  31 #include <mach/pxa-regs.h>
  32 #include <mach/mfp-pxa27x.h>
  33 #include <mach/colibri.h>
  34
  35 #include "generic.h"
  36 #include "devices.h"
  37
  38 static unsigned long colibri_pin_config[] __initdata = {
  39         GPIO78_nCS_2,   /* Ethernet CS */
  40         GPIO114_GPIO,   /* Ethernet IRQ */
  41 };
  42
  43 /*
  44  * Flash
  45  */
  46 static struct mtd_partition colibri_partitions[] = {
  47         {
  48                 .name =         "Bootloader",
  49                 .offset =       0x00000000,
  50                 .size =         0x00040000,
  51                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
  52         }, {
  53                 .name =         "Kernel",
  54                 .offset =       0x00040000,
  55                 .size =         0x00400000,
  56                 .mask_flags =   0
  57         }, {
  58                 .name =         "Rootfs",
  59                 .offset =       0x00440000,
  60                 .size =         MTDPART_SIZ_FULL,
  61                 .mask_flags =   0
  62         }
  63 };
  64
  65 static struct physmap_flash_data colibri_flash_data[] = {
  66         {
  67                 .width          = 4,                    /* bankwidth in bytes */
  68                 .parts          = colibri_partitions,
  69                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
  70         }
  71 };
  72
  73 static struct resource flash_resource = {
  74         .start  = PXA_CS0_PHYS,
  75         .end    = PXA_CS0_PHYS + SZ_32M - 1,
  76         .flags  = IORESOURCE_MEM,
  77 };
  78
  79 static struct platform_device flash_device = {
  80         .name   = "physmap-flash",
  81         .id     = 0,
  82         .dev    = {
  83                 .platform_data = colibri_flash_data,
  84         },
  85         .resource = &flash_resource,
  86         .num_resources = 1,
  87 };
  88
  89 /*
  90  * DM9000 Ethernet
  91  */
  92 static struct resource dm9000_resources[] = {
  93         [0] = {
  94                 .start  = COLIBRI_ETH_PHYS,
  95                 .end    = COLIBRI_ETH_PHYS + 3,
  96                 .flags  = IORESOURCE_MEM,
  97         },
  98         [1] = {
  99                 .start  = COLIBRI_ETH_PHYS + 4,
 100                 .end    = COLIBRI_ETH_PHYS + 4 + 500,
 101                 .flags  = IORESOURCE_MEM,
 102         },
 103         [2] = {
 104                 .start  = COLIBRI_ETH_IRQ,
 105                 .end    = COLIBRI_ETH_IRQ,
 106                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 107         },
 108 };
 109
 110 static struct platform_device dm9000_device = {
 111         .name           = "dm9000",
 112         .id             = -1,
 113         .num_resources  = ARRAY_SIZE(dm9000_resources),
 114         .resource       = dm9000_resources,
 115 };
 116
 117 static struct platform_device *colibri_devices[] __initdata = {
 118         &flash_device,
 119         &dm9000_device,
 120 };
 121
 122 static void __init colibri_init(void)
 123 {
 124         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pin_config));
 125
 126         platform_add_devices(colibri_devices, ARRAY_SIZE(colibri_devices));
 127 }
 128
 129 MACHINE_START(COLIBRI, "Toradex Colibri PXA27x")
 130         .phys_io        = 0x40000000,
 131         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 132         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 133         .init_machine   = colibri_init,
 134         .map_io         = pxa_map_io,
 135         .init_irq       = pxa27x_init_irq,
 136         .timer          = &pxa_timer,
 137 MACHINE_END