arch/arm/mach-s3c64xx/include/mach/gpio.h

   1 /* arch/arm/mach-s3c6400/include/mach/gpio.h
   2  *
   3  * Copyright 2008 Openmoko, Inc.
   4  * Copyright 2008 Simtec Electronics
   5  *      http://armlinux.simtec.co.uk/
   6  *      Ben Dooks <ben@simtec.co.uk>
   7  *
   8  * S3C6400 - GPIO lib support
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13 */
  14
  15 /* GPIO bank sizes */
  16 #define S3C64XX_GPIO_A_NR       (8)
  17 #define S3C64XX_GPIO_B_NR       (7)
  18 #define S3C64XX_GPIO_C_NR       (8)
  19 #define S3C64XX_GPIO_D_NR       (5)
  20 #define S3C64XX_GPIO_E_NR       (5)
  21 #define S3C64XX_GPIO_F_NR       (16)
  22 #define S3C64XX_GPIO_G_NR       (7)
  23 #define S3C64XX_GPIO_H_NR       (10)
  24 #define S3C64XX_GPIO_I_NR       (16)
  25 #define S3C64XX_GPIO_J_NR       (12)
  26 #define S3C64XX_GPIO_K_NR       (16)
  27 #define S3C64XX_GPIO_L_NR       (15)
  28 #define S3C64XX_GPIO_M_NR       (6)
  29 #define S3C64XX_GPIO_N_NR       (16)
  30 #define S3C64XX_GPIO_O_NR       (16)
  31 #define S3C64XX_GPIO_P_NR       (15)
  32 #define S3C64XX_GPIO_Q_NR       (9)
  33
  34 /* GPIO bank numbes */
  35
  36 /* CONFIG_S3C_GPIO_SPACE allows the user to select extra
  37  * space for debugging purposes so that any accidental
  38  * change from one gpio bank to another can be caught.
  39 */
  40
  41 #define S3C64XX_GPIO_NEXT(__gpio) \
  42         ((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
  43
  44 enum s3c_gpio_number {
  45         S3C64XX_GPIO_A_START = 0,
  46         S3C64XX_GPIO_B_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_A),
  47         S3C64XX_GPIO_C_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_B),
  48         S3C64XX_GPIO_D_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_C),
  49         S3C64XX_GPIO_E_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_D),
  50         S3C64XX_GPIO_F_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_E),
  51         S3C64XX_GPIO_G_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_F),
  52         S3C64XX_GPIO_H_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_G),
  53         S3C64XX_GPIO_I_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_H),
  54         S3C64XX_GPIO_J_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_I),
  55         S3C64XX_GPIO_K_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_J),
  56         S3C64XX_GPIO_L_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_K),
  57         S3C64XX_GPIO_M_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_L),
  58         S3C64XX_GPIO_N_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_M),
  59         S3C64XX_GPIO_O_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_N),
  60         S3C64XX_GPIO_P_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_O),
  61         S3C64XX_GPIO_Q_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_P),
  62 };
  63
  64 /* S3C64XX GPIO number definitions. */
  65
  66 #define S3C64XX_GPA(_nr)        (S3C64XX_GPIO_A_START + (_nr))
  67 #define S3C64XX_GPB(_nr)        (S3C64XX_GPIO_B_START + (_nr))
  68 #define S3C64XX_GPC(_nr)        (S3C64XX_GPIO_C_START + (_nr))
  69 #define S3C64XX_GPD(_nr)        (S3C64XX_GPIO_D_START + (_nr))
  70 #define S3C64XX_GPE(_nr)        (S3C64XX_GPIO_E_START + (_nr))
  71 #define S3C64XX_GPF(_nr)        (S3C64XX_GPIO_F_START + (_nr))
  72 #define S3C64XX_GPG(_nr)        (S3C64XX_GPIO_G_START + (_nr))
  73 #define S3C64XX_GPH(_nr)        (S3C64XX_GPIO_H_START + (_nr))
  74 #define S3C64XX_GPI(_nr)        (S3C64XX_GPIO_I_START + (_nr))
  75 #define S3C64XX_GPJ(_nr)        (S3C64XX_GPIO_J_START + (_nr))
  76 #define S3C64XX_GPK(_nr)        (S3C64XX_GPIO_K_START + (_nr))
  77 #define S3C64XX_GPL(_nr)        (S3C64XX_GPIO_L_START + (_nr))
  78 #define S3C64XX_GPM(_nr)        (S3C64XX_GPIO_M_START + (_nr))
  79 #define S3C64XX_GPN(_nr)        (S3C64XX_GPIO_N_START + (_nr))
  80 #define S3C64XX_GPO(_nr)        (S3C64XX_GPIO_O_START + (_nr))
  81 #define S3C64XX_GPP(_nr)        (S3C64XX_GPIO_P_START + (_nr))
  82 #define S3C64XX_GPQ(_nr)        (S3C64XX_GPIO_Q_START + (_nr))
  83
  84 /* the end of the S3C64XX specific gpios */
  85 #define S3C64XX_GPIO_END        (S3C64XX_GPQ(S3C64XX_GPIO_Q_NR) + 1)
  86 #define S3C_GPIO_END            S3C64XX_GPIO_END
  87
  88 /* define the number of gpios we need to the one after the GPQ() range */
  89 #define GPIO_BOARD_START (S3C64XX_GPQ(S3C64XX_GPIO_Q_NR) + 1)
  90
  91 #define BOARD_NR_GPIOS  (16 + CONFIG_SAMSUNG_GPIO_EXTRA)
  92
  93 #define ARCH_NR_GPIOS   (GPIO_BOARD_START + BOARD_NR_GPIOS)