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

   1 /*
   2  *  linux/arch/arm/mach-pxa/colibri-evalboard.c
   3  *
   4  *  Support for Toradex Colibri Evaluation Carrier Board
   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/interrupt.h>
  17 #include <linux/gpio/machine.h>
  18 #include <asm/mach-types.h>
  19 #include <mach/hardware.h>
  20 #include <asm/mach/arch.h>
  21 #include <linux/i2c.h>
  22 #include <linux/platform_data/i2c-pxa.h>
  23 #include <asm/io.h>
  24
  25 #include "pxa27x.h"
  26 #include "colibri.h"
  27 #include <linux/platform_data/mmc-pxamci.h>
  28 #include <linux/platform_data/usb-ohci-pxa27x.h>
  29 #include "pxa27x-udc.h"
  30
  31 #include "generic.h"
  32 #include "devices.h"
  33
  34 /******************************************************************************
  35  * SD/MMC card controller
  36  ******************************************************************************/
  37 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
  38 static struct pxamci_platform_data colibri_mci_platform_data = {
  39         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
  40         .detect_delay_ms        = 200,
  41 };
  42
  43 static struct gpiod_lookup_table colibri_pxa270_mci_gpio_table = {
  44         .dev_id = "pxa2xx-mci.0",
  45         .table = {
  46                 GPIO_LOOKUP("gpio-pxa", GPIO0_COLIBRI_PXA270_SD_DETECT,
  47                             "cd", GPIO_ACTIVE_LOW),
  48                 { },
  49         },
  50 };
  51
  52 static struct gpiod_lookup_table colibri_pxa300_mci_gpio_table = {
  53         .dev_id = "pxa2xx-mci.0",
  54         .table = {
  55                 GPIO_LOOKUP("gpio-pxa", GPIO13_COLIBRI_PXA300_SD_DETECT,
  56                             "cd", GPIO_ACTIVE_LOW),
  57                 { },
  58         },
  59 };
  60
  61 static struct gpiod_lookup_table colibri_pxa320_mci_gpio_table = {
  62         .dev_id = "pxa2xx-mci.0",
  63         .table = {
  64                 GPIO_LOOKUP("gpio-pxa", GPIO28_COLIBRI_PXA320_SD_DETECT,
  65                             "cd", GPIO_ACTIVE_LOW),
  66                 { },
  67         },
  68 };
  69
  70 static void __init colibri_mmc_init(void)
  71 {
  72         if (machine_is_colibri())       /* PXA270 Colibri */
  73                 gpiod_add_lookup_table(&colibri_pxa270_mci_gpio_table);
  74         if (machine_is_colibri300())    /* PXA300 Colibri */
  75                 gpiod_add_lookup_table(&colibri_pxa300_mci_gpio_table);
  76         else                            /* PXA320 Colibri */
  77                 gpiod_add_lookup_table(&colibri_pxa320_mci_gpio_table);
  78
  79         pxa_set_mci_info(&colibri_mci_platform_data);
  80 }
  81 #else
  82 static inline void colibri_mmc_init(void) {}
  83 #endif
  84
  85 /******************************************************************************
  86  * USB Host
  87  ******************************************************************************/
  88 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  89 static int colibri_ohci_init(struct device *dev)
  90 {
  91         UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
  92         return 0;
  93 }
  94
  95 static struct pxaohci_platform_data colibri_ohci_info = {
  96         .port_mode      = PMM_PERPORT_MODE,
  97         .flags          = ENABLE_PORT1 |
  98                           POWER_CONTROL_LOW | POWER_SENSE_LOW,
  99         .init           = colibri_ohci_init,
 100 };
 101
 102 static void __init colibri_uhc_init(void)
 103 {
 104         /* Colibri PXA270 has two usb ports, TBA for 320 */
 105         if (machine_is_colibri())
 106                 colibri_ohci_info.flags |= ENABLE_PORT2;
 107
 108         pxa_set_ohci_info(&colibri_ohci_info);
 109 }
 110 #else
 111 static inline void colibri_uhc_init(void) {}
 112 #endif
 113
 114 /******************************************************************************
 115  * I2C RTC
 116  ******************************************************************************/
 117 #if defined(CONFIG_RTC_DRV_DS1307) || defined(CONFIG_RTC_DRV_DS1307_MODULE)
 118 static struct i2c_board_info __initdata colibri_i2c_devs[] = {
 119         {
 120                 I2C_BOARD_INFO("m41t00", 0x68),
 121         },
 122 };
 123
 124 static void __init colibri_rtc_init(void)
 125 {
 126         pxa_set_i2c_info(NULL);
 127         i2c_register_board_info(0, ARRAY_AND_SIZE(colibri_i2c_devs));
 128 }
 129 #else
 130 static inline void colibri_rtc_init(void) {}
 131 #endif
 132
 133 void __init colibri_evalboard_init(void)
 134 {
 135         pxa_set_ffuart_info(NULL);
 136         pxa_set_btuart_info(NULL);
 137         pxa_set_stuart_info(NULL);
 138
 139         colibri_mmc_init();
 140         colibri_uhc_init();
 141         colibri_rtc_init();
 142 }