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 #include <mach/ohci.h>
  38 #include <mach/pxa27x-udc.h>
  39
  40 #include "generic.h"
  41 #include "devices.h"
  42
  43 /******************************************************************************
  44  * Pin configuration
  45  ******************************************************************************/
  46 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
  47         /* Ethernet */
  48         GPIO78_nCS_2,   /* Ethernet CS */
  49         GPIO114_GPIO,   /* Ethernet IRQ */
  50
  51         /* MMC */
  52         GPIO32_MMC_CLK,
  53         GPIO92_MMC_DAT_0,
  54         GPIO109_MMC_DAT_1,
  55         GPIO110_MMC_DAT_2,
  56         GPIO111_MMC_DAT_3,
  57         GPIO112_MMC_CMD,
  58         GPIO0_GPIO,     /* SD detect */
  59
  60         /* FFUART */
  61         GPIO39_FFUART_TXD,
  62         GPIO34_FFUART_RXD,
  63
  64         /* UHC */
  65         GPIO88_USBH1_PWR,
  66         GPIO89_USBH1_PEN,
  67         GPIO119_USBH2_PWR,
  68         GPIO120_USBH2_PEN,
  69 };
  70
  71 /******************************************************************************
  72  * NOR Flash
  73  ******************************************************************************/
  74 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
  75 static struct mtd_partition colibri_partitions[] = {
  76         {
  77                 .name =         "Bootloader",
  78                 .offset =       0x00000000,
  79                 .size =         0x00040000,
  80                 .mask_flags =   MTD_WRITEABLE   /* force read-only */
  81         }, {
  82                 .name =         "Kernel",
  83                 .offset =       0x00040000,
  84                 .size =         0x00400000,
  85                 .mask_flags =   0
  86         }, {
  87                 .name =         "Rootfs",
  88                 .offset =       0x00440000,
  89                 .size =         MTDPART_SIZ_FULL,
  90                 .mask_flags =   0
  91         }
  92 };
  93
  94 static struct physmap_flash_data colibri_flash_data[] = {
  95         {
  96                 .width          = 4,                    /* bankwidth in bytes */
  97                 .parts          = colibri_partitions,
  98                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
  99         }
 100 };
 101
 102 static struct resource colibri_pxa270_flash_resource = {
 103         .start  = PXA_CS0_PHYS,
 104         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 105         .flags  = IORESOURCE_MEM,
 106 };
 107
 108 static struct platform_device colibri_pxa270_flash_device = {
 109         .name   = "physmap-flash",
 110         .id     = 0,
 111         .dev    = {
 112                 .platform_data = colibri_flash_data,
 113         },
 114         .resource = &colibri_pxa270_flash_resource,
 115         .num_resources = 1,
 116 };
 117
 118 static void __init colibri_pxa270_nor_init(void)
 119 {
 120         platform_device_register(&colibri_pxa270_flash_device);
 121 }
 122 #else
 123 static inline void colibri_pxa270_nor_init(void) {}
 124 #endif
 125
 126 /******************************************************************************
 127  * Ethernet
 128  ******************************************************************************/
 129 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 130 static struct resource colibri_pxa270_dm9000_resources[] = {
 131         [0] = {
 132                 .start  = PXA_CS2_PHYS,
 133                 .end    = PXA_CS2_PHYS + 3,
 134                 .flags  = IORESOURCE_MEM,
 135         },
 136         [1] = {
 137                 .start  = PXA_CS2_PHYS + 4,
 138                 .end    = PXA_CS2_PHYS + 4 + 500,
 139                 .flags  = IORESOURCE_MEM,
 140         },
 141         [2] = {
 142                 .start  = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 143                 .end    = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 144                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 145         },
 146 };
 147
 148 static struct platform_device colibri_pxa270_dm9000_device = {
 149         .name           = "dm9000",
 150         .id             = -1,
 151         .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
 152         .resource       = colibri_pxa270_dm9000_resources,
 153 };
 154
 155 static void __init colibri_pxa270_eth_init(void)
 156 {
 157         platform_device_register(&colibri_pxa270_dm9000_device);
 158 }
 159 #else
 160 static inline void colibri_pxa270_eth_init(void) {}
 161 #endif
 162
 163 /******************************************************************************
 164  * SD/MMC card controller
 165  ******************************************************************************/
 166 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
 167 static struct pxamci_platform_data colibri_pxa270_mci_platform_data = {
 168         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 169         .gpio_power             = -1,
 170         .gpio_card_detect       = GPIO0_COLIBRI_PXA270_SD_DETECT,
 171         .gpio_card_ro           = -1,
 172         .detect_delay_ms        = 200,
 173 };
 174
 175 static void __init colibri_pxa270_mmc_init(void)
 176 {
 177         pxa_set_mci_info(&colibri_pxa270_mci_platform_data);
 178 }
 179 #else
 180 static inline void colibri_pxa270_mmc_init(void) {}
 181 #endif
 182
 183 /******************************************************************************
 184  * USB Host
 185  ******************************************************************************/
 186 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 187 static int colibri_pxa270_ohci_init(struct device *dev)
 188 {
 189         UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
 190         return 0;
 191 }
 192
 193 static struct pxaohci_platform_data colibri_pxa270_ohci_info = {
 194         .port_mode      = PMM_PERPORT_MODE,
 195         .flags          = ENABLE_PORT1 | ENABLE_PORT2 |
 196                         POWER_CONTROL_LOW | POWER_SENSE_LOW,
 197         .init           = colibri_pxa270_ohci_init,
 198 };
 199
 200 static void __init colibri_pxa270_uhc_init(void)
 201 {
 202         pxa_set_ohci_info(&colibri_pxa270_ohci_info);
 203 }
 204 #else
 205 static inline void colibri_pxa270_uhc_init(void) {}
 206 #endif
 207
 208 static void __init colibri_pxa270_init(void)
 209 {
 210         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
 211         pxa_set_ffuart_info(NULL);
 212         pxa_set_btuart_info(NULL);
 213         pxa_set_stuart_info(NULL);
 214
 215         colibri_pxa270_nor_init();
 216         colibri_pxa270_eth_init();
 217         colibri_pxa270_mmc_init();
 218         colibri_pxa270_uhc_init();
 219 }
 220
 221 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
 222         .phys_io        = 0x40000000,
 223         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 224         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 225         .init_machine   = colibri_pxa270_init,
 226         .map_io         = pxa_map_io,
 227         .init_irq       = pxa27x_init_irq,
 228         .timer          = &pxa_timer,
 229 MACHINE_END
 230