arch/arm/mach-kirkwood/board-dnskw.c

   1 /*
   2  * Copyright 2012 (C), Jamie Lentin <jm@lentin.co.uk>
   3  *
   4  * arch/arm/mach-kirkwood/board-dnskw.c
   5  *
   6  * D-link DNS-320 & DNS-325 NAS Init for drivers not converted to
   7  * flattened device tree yet.
   8  *
   9  * This file is licensed under the terms of the GNU General Public
  10  * License version 2.  This program is licensed "as is" without any
  11  * warranty of any kind, whether express or implied.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/mv643xx_eth.h>
  18 #include <linux/gpio.h>
  19 #include "common.h"
  20
  21 static struct mv643xx_eth_platform_data dnskw_ge00_data = {
  22         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
  23 };
  24
  25 /* Register any GPIO for output and set the value */
  26 static void __init dnskw_gpio_register(unsigned gpio, char *name, int def)
  27 {
  28         if (gpio_request(gpio, name) == 0 &&
  29             gpio_direction_output(gpio, 0) == 0) {
  30                 gpio_set_value(gpio, def);
  31                 if (gpio_export(gpio, 0) != 0)
  32                         pr_err("dnskw: Failed to export GPIO %s\n", name);
  33         } else
  34                 pr_err("dnskw: Failed to register %s\n", name);
  35 }
  36
  37 void __init dnskw_init(void)
  38 {
  39         kirkwood_ge00_init(&dnskw_ge00_data);
  40
  41         /* Set NAS to turn back on after a power failure */
  42         dnskw_gpio_register(37, "dnskw:power:recover", 1);
  43 }