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 <asm/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 <asm/arch/pxa-regs.h>
  32 #include <asm/arch/colibri.h>
  33
  34 #include "generic.h"
  35 #include "devices.h"
  36
  37 /*
  38  * Flash
  39  */
  40 static struct mtd_partition colibri_partitions[] = {
  41         {
  42                 .name =         "Bootloader",
  43                 .offset =       0x00000000,
  44                 .size =         0x00040000,
  45                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
  46         }, {
  47                 .name =         "Kernel",
  48                 .offset =       0x00040000,
  49                 .size =         0x00400000,
  50                 .mask_flags =   0
  51         }, {
  52                 .name =         "Rootfs",
  53                 .offset =       0x00440000,
  54                 .size =         MTDPART_SIZ_FULL,
  55                 .mask_flags =   0
  56         }
  57 };
  58
  59 static struct physmap_flash_data colibri_flash_data[] = {
  60         {
  61                 .width          = 4,                    /* bankwidth in bytes */
  62                 .parts          = colibri_partitions,
  63                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
  64         }
  65 };
  66
  67 static struct resource flash_resource = {
  68         .start  = PXA_CS0_PHYS,
  69         .end    = PXA_CS0_PHYS + SZ_32M - 1,
  70         .flags  = IORESOURCE_MEM,
  71 };
  72
  73 static struct platform_device flash_device = {
  74         .name   = "physmap-flash",
  75         .id     = 0,
  76         .dev    = {
  77                 .platform_data = colibri_flash_data,
  78         },
  79         .resource = &flash_resource,
  80         .num_resources = 1,
  81 };
  82
  83 /*
  84  * DM9000 Ethernet
  85  */
  86 static struct resource dm9000_resources[] = {
  87         [0] = {
  88                 .start  = COLIBRI_ETH_PHYS,
  89                 .end    = COLIBRI_ETH_PHYS + 3,
  90                 .flags  = IORESOURCE_MEM,
  91         },
  92         [1] = {
  93                 .start  = COLIBRI_ETH_PHYS + 4,
  94                 .end    = COLIBRI_ETH_PHYS + 4 + 500,
  95                 .flags  = IORESOURCE_MEM,
  96         },
  97         [2] = {
  98                 .start  = COLIBRI_ETH_IRQ,
  99                 .end    = COLIBRI_ETH_IRQ,
 100                 .flags  = IORESOURCE_IRQ,
 101         },
 102 };
 103
 104 static struct platform_device dm9000_device = {
 105         .name           = "dm9000",
 106         .id             = -1,
 107         .num_resources  = ARRAY_SIZE(dm9000_resources),
 108         .resource       = dm9000_resources,
 109 };
 110
 111 static struct platform_device *colibri_devices[] __initdata = {
 112         &flash_device,
 113         &dm9000_device,
 114 };
 115
 116 static void __init colibri_init(void)
 117 {
 118         /* DM9000 LAN */
 119         pxa_gpio_mode(GPIO78_nCS_2_MD);
 120         pxa_gpio_mode(GPIO_DM9000 | GPIO_IN);
 121         set_irq_type(COLIBRI_ETH_IRQ, IRQT_FALLING);
 122
 123         platform_add_devices(colibri_devices, ARRAY_SIZE(colibri_devices));
 124 }
 125
 126 MACHINE_START(COLIBRI, "Toradex Colibri PXA27x")
 127         .phys_io        = 0x40000000,
 128         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 129         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 130         .init_machine   = colibri_init,
 131         .map_io         = pxa_map_io,
 132         .init_irq       = pxa27x_init_irq,
 133         .timer          = &pxa_timer,
 134 MACHINE_END