target/linux/adm5120/files-2.6.26/arch/mips/adm5120/compex/compex.c

   1 /*
   2  *  Compex boards
   3  *
   4  *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  *
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14
  15 #include <asm/bootinfo.h>
  16 #include <linux/gpio.h>
  17
  18 #include <asm/mach-adm5120/adm5120_info.h>
  19 #include <asm/mach-adm5120/adm5120_board.h>
  20 #include <asm/mach-adm5120/adm5120_platform.h>
  21 #include <asm/mach-adm5120/adm5120_irq.h>
  22
  23 #define COMPEX_GPIO_DEV_MASK    (1 << ADM5120_GPIO_PIN5)
  24
  25 static void switch_bank_gpio5(unsigned bank)
  26 {
  27         switch (bank) {
  28         case 0:
  29                 gpio_set_value(ADM5120_GPIO_PIN5, 0);
  30                 break;
  31         case 1:
  32                 gpio_set_value(ADM5120_GPIO_PIN5, 1);
  33                 break;
  34         }
  35 }
  36
  37 void __init compex_generic_setup(void)
  38 {
  39         gpio_request(ADM5120_GPIO_PIN5, NULL); /* for flash A20 line */
  40         gpio_direction_output(ADM5120_GPIO_PIN5, 0);
  41
  42         adm5120_flash0_data.switch_bank = switch_bank_gpio5;
  43         adm5120_add_device_flash(0);
  44
  45         adm5120_add_device_gpio(COMPEX_GPIO_DEV_MASK);
  46 }