arch/arm/mach-pxa/colibri-pxa270.c

   1 /*
   2  *  linux/arch/arm/mach-pxa/colibri-pxa270.c
   3  *
   4  *  Support for Toradex PXA270 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 <linux/gpio.h>
  24 #include <asm/mach-types.h>
  25 #include <mach/hardware.h>
  26 #include <asm/irq.h>
  27 #include <asm/sizes.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30 #include <asm/mach/irq.h>
  31 #include <asm/mach/flash.h>
  32
  33 #include <mach/pxa27x.h>
  34 #include <mach/colibri.h>
  35
  36 #include "generic.h"
  37 #include "devices.h"
  38
  39 /*
  40  * GPIO configuration
  41  */
  42 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
  43         GPIO78_nCS_2,   /* Ethernet CS */
  44         GPIO114_GPIO,   /* Ethernet IRQ */
  45 };
  46
  47 /*
  48  * NOR flash
  49  */
  50 static struct mtd_partition colibri_partitions[] = {
  51         {
  52                 .name =         "Bootloader",
  53                 .offset =       0x00000000,
  54                 .size =         0x00040000,
  55                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
  56         }, {
  57                 .name =         "Kernel",
  58                 .offset =       0x00040000,
  59                 .size =         0x00400000,
  60                 .mask_flags =   0
  61         }, {
  62                 .name =         "Rootfs",
  63                 .offset =       0x00440000,
  64                 .size =         MTDPART_SIZ_FULL,
  65                 .mask_flags =   0
  66         }
  67 };
  68
  69 static struct physmap_flash_data colibri_flash_data[] = {
  70         {
  71                 .width          = 4,                    /* bankwidth in bytes */
  72                 .parts          = colibri_partitions,
  73                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
  74         }
  75 };
  76
  77 static struct resource colibri_pxa270_flash_resource = {
  78         .start  = PXA_CS0_PHYS,
  79         .end    = PXA_CS0_PHYS + SZ_32M - 1,
  80         .flags  = IORESOURCE_MEM,
  81 };
  82
  83 static struct platform_device colibri_pxa270_flash_device = {
  84         .name   = "physmap-flash",
  85         .id     = 0,
  86         .dev    = {
  87                 .platform_data = colibri_flash_data,
  88         },
  89         .resource = &colibri_pxa270_flash_resource,
  90         .num_resources = 1,
  91 };
  92
  93 /*
  94  * DM9000 Ethernet
  95  */
  96 #if defined(CONFIG_DM9000)
  97 static struct resource dm9000_resources[] = {
  98         [0] = {
  99                 .start  = COLIBRI_PXA270_ETH_PHYS,
 100                 .end    = COLIBRI_PXA270_ETH_PHYS + 3,
 101                 .flags  = IORESOURCE_MEM,
 102         },
 103         [1] = {
 104                 .start  = COLIBRI_PXA270_ETH_PHYS + 4,
 105                 .end    = COLIBRI_PXA270_ETH_PHYS + 4 + 500,
 106                 .flags  = IORESOURCE_MEM,
 107         },
 108         [2] = {
 109                 .start  = COLIBRI_PXA270_ETH_IRQ,
 110                 .end    = COLIBRI_PXA270_ETH_IRQ,
 111                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 112         },
 113 };
 114
 115 static struct platform_device dm9000_device = {
 116         .name           = "dm9000",
 117         .id             = -1,
 118         .num_resources  = ARRAY_SIZE(dm9000_resources),
 119         .resource       = dm9000_resources,
 120 };
 121 #endif /* CONFIG_DM9000 */
 122
 123 static struct platform_device *colibri_pxa270_devices[] __initdata = {
 124         &colibri_pxa270_flash_device,
 125 #if defined(CONFIG_DM9000)
 126         &dm9000_device,
 127 #endif
 128 };
 129
 130 static void __init colibri_pxa270_init(void)
 131 {
 132         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
 133         platform_add_devices(ARRAY_AND_SIZE(colibri_pxa270_devices));
 134 }
 135
 136 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
 137         .phys_io        = 0x40000000,
 138         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 139         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 140         .init_machine   = colibri_pxa270_init,
 141         .map_io         = pxa_map_io,
 142         .init_irq       = pxa27x_init_irq,
 143         .timer          = &pxa_timer,
 144 MACHINE_END
 145