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  *  Marek Vasut <marek.vasut@gmail.com>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License version 2 as
  10  *  published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/kernel.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/sysdev.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/bitops.h>
  19 #include <linux/ioport.h>
  20 #include <linux/delay.h>
  21 #include <linux/mtd/mtd.h>
  22 #include <linux/mtd/partitions.h>
  23 #include <linux/mtd/physmap.h>
  24 #include <linux/gpio.h>
  25 #include <asm/mach-types.h>
  26 #include <mach/hardware.h>
  27 #include <asm/irq.h>
  28 #include <asm/sizes.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31 #include <asm/mach/irq.h>
  32 #include <asm/mach/flash.h>
  33
  34 #include <mach/pxa27x.h>
  35 #include <mach/colibri.h>
  36 #include <mach/mmc.h>
  37
  38 #include "generic.h"
  39 #include "devices.h"
  40
  41 /******************************************************************************
  42  * Pin configuration
  43  ******************************************************************************/
  44 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
  45         /* Ethernet */
  46         GPIO78_nCS_2,   /* Ethernet CS */
  47         GPIO114_GPIO,   /* Ethernet IRQ */
  48
  49         /* MMC */
  50         GPIO32_MMC_CLK,
  51         GPIO92_MMC_DAT_0,
  52         GPIO109_MMC_DAT_1,
  53         GPIO110_MMC_DAT_2,
  54         GPIO111_MMC_DAT_3,
  55         GPIO112_MMC_CMD,
  56         GPIO0_GPIO,     /* SD detect */
  57
  58         /* FFUART */
  59         GPIO39_FFUART_TXD,
  60         GPIO34_FFUART_RXD,
  61 };
  62
  63 /******************************************************************************
  64  * NOR Flash
  65  ******************************************************************************/
  66 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
  67 static struct mtd_partition colibri_partitions[] = {
  68         {
  69                 .name =         "Bootloader",
  70                 .offset =       0x00000000,
  71                 .size =         0x00040000,
  72                 .mask_flags =   MTD_WRITEABLE   /* force read-only */
  73         }, {
  74                 .name =         "Kernel",
  75                 .offset =       0x00040000,
  76                 .size =         0x00400000,
  77                 .mask_flags =   0
  78         }, {
  79                 .name =         "Rootfs",
  80                 .offset =       0x00440000,
  81                 .size =         MTDPART_SIZ_FULL,
  82                 .mask_flags =   0
  83         }
  84 };
  85
  86 static struct physmap_flash_data colibri_flash_data[] = {
  87         {
  88                 .width          = 4,                    /* bankwidth in bytes */
  89                 .parts          = colibri_partitions,
  90                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
  91         }
  92 };
  93
  94 static struct resource colibri_pxa270_flash_resource = {
  95         .start  = PXA_CS0_PHYS,
  96         .end    = PXA_CS0_PHYS + SZ_32M - 1,
  97         .flags  = IORESOURCE_MEM,
  98 };
  99
 100 static struct platform_device colibri_pxa270_flash_device = {
 101         .name   = "physmap-flash",
 102         .id     = 0,
 103         .dev    = {
 104                 .platform_data = colibri_flash_data,
 105         },
 106         .resource = &colibri_pxa270_flash_resource,
 107         .num_resources = 1,
 108 };
 109
 110 static void __init colibri_pxa270_nor_init(void)
 111 {
 112         platform_device_register(&colibri_pxa270_flash_device);
 113 }
 114 #else
 115 static inline void colibri_pxa270_nor_init(void) {}
 116 #endif
 117
 118 /******************************************************************************
 119  * Ethernet
 120  ******************************************************************************/
 121 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 122 static struct resource colibri_pxa270_dm9000_resources[] = {
 123         [0] = {
 124                 .start  = PXA_CS2_PHYS,
 125                 .end    = PXA_CS2_PHYS + 3,
 126                 .flags  = IORESOURCE_MEM,
 127         },
 128         [1] = {
 129                 .start  = PXA_CS2_PHYS + 4,
 130                 .end    = PXA_CS2_PHYS + 4 + 500,
 131                 .flags  = IORESOURCE_MEM,
 132         },
 133         [2] = {
 134                 .start  = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 135                 .end    = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 136                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 137         },
 138 };
 139
 140 static struct platform_device colibri_pxa270_dm9000_device = {
 141         .name           = "dm9000",
 142         .id             = -1,
 143         .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
 144         .resource       = colibri_pxa270_dm9000_resources,
 145 };
 146
 147 static void __init colibri_pxa270_eth_init(void)
 148 {
 149         platform_device_register(&colibri_pxa270_dm9000_device);
 150 }
 151 #else
 152 static inline void colibri_pxa270_eth_init(void) {}
 153 #endif
 154
 155 /******************************************************************************
 156  * SD/MMC card controller
 157  ******************************************************************************/
 158 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
 159 static struct pxamci_platform_data colibri_pxa270_mci_platform_data = {
 160         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 161         .gpio_power             = -1,
 162         .gpio_card_detect       = GPIO0_COLIBRI_PXA270_SD_DETECT,
 163         .gpio_card_ro           = -1,
 164         .detect_delay_ms        = 200,
 165 };
 166
 167 static void __init colibri_pxa270_mmc_init(void)
 168 {
 169         pxa_set_mci_info(&colibri_pxa270_mci_platform_data);
 170 }
 171 #else
 172 static inline void colibri_pxa270_mmc_init(void) {}
 173 #endif
 174
 175 static void __init colibri_pxa270_init(void)
 176 {
 177         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
 178         pxa_set_ffuart_info(NULL);
 179         pxa_set_btuart_info(NULL);
 180         pxa_set_stuart_info(NULL);
 181
 182         colibri_pxa270_nor_init();
 183         colibri_pxa270_eth_init();
 184         colibri_pxa270_mmc_init();
 185 }
 186
 187 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
 188         .phys_io        = 0x40000000,
 189         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 190         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 191         .init_machine   = colibri_pxa270_init,
 192         .map_io         = pxa_map_io,
 193         .init_irq       = pxa27x_init_irq,
 194         .timer          = &pxa_timer,
 195 MACHINE_END
 196