arch/arm/mach-s3c24xx/include/mach/gpio-samsung.h

   1 /*
   2  * Copyright (c) 2008 Simtec Electronics
   3  *      http://armlinux.simtec.co.uk/
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * S3C2410 - GPIO lib support
   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 /* some boards require extra gpio capacity to support external
  14  * devices that need GPIO.
  15  */
  16
  17 #ifndef GPIO_SAMSUNG_S3C24XX_H
  18 #define GPIO_SAMSUNG_S3C24XX_H
  19
  20 /*
  21  * GPIO sizes for various SoCs:
  22  *
  23  *   2410 2412 2440 2443 2416
  24  *             2442
  25  *   ---- ---- ---- ---- ----
  26  * A  23   22   25   16   27
  27  * B  11   11   11   11   11
  28  * C  16   16   16   16   16
  29  * D  16   16   16   16   16
  30  * E  16   16   16   16   16
  31  * F  8    8    8    8    8
  32  * G  16   16   16   16   8
  33  * H  11   11   11   15   15
  34  * J  --   --   13   16   --
  35  * K  --   --   --   --   16
  36  * L  --   --   --   15   14
  37  * M  --   --   --   2    2
  38  */
  39
  40 /* GPIO bank sizes */
  41
  42 #define S3C2410_GPIO_A_NR       (32)
  43 #define S3C2410_GPIO_B_NR       (32)
  44 #define S3C2410_GPIO_C_NR       (32)
  45 #define S3C2410_GPIO_D_NR       (32)
  46 #define S3C2410_GPIO_E_NR       (32)
  47 #define S3C2410_GPIO_F_NR       (32)
  48 #define S3C2410_GPIO_G_NR       (32)
  49 #define S3C2410_GPIO_H_NR       (32)
  50 #define S3C2410_GPIO_J_NR       (32)    /* technically 16. */
  51 #define S3C2410_GPIO_K_NR       (32)    /* technically 16. */
  52 #define S3C2410_GPIO_L_NR       (32)    /* technically 15. */
  53 #define S3C2410_GPIO_M_NR       (32)    /* technically 2. */
  54
  55 #if CONFIG_S3C_GPIO_SPACE != 0
  56 #error CONFIG_S3C_GPIO_SPACE cannot be nonzero at the moment
  57 #endif
  58
  59 #define S3C2410_GPIO_NEXT(__gpio) \
  60         ((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 0)
  61
  62 #ifndef __ASSEMBLY__
  63
  64 enum s3c_gpio_number {
  65         S3C2410_GPIO_A_START = 0,
  66         S3C2410_GPIO_B_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_A),
  67         S3C2410_GPIO_C_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_B),
  68         S3C2410_GPIO_D_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_C),
  69         S3C2410_GPIO_E_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_D),
  70         S3C2410_GPIO_F_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_E),
  71         S3C2410_GPIO_G_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_F),
  72         S3C2410_GPIO_H_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_G),
  73         S3C2410_GPIO_J_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_H),
  74         S3C2410_GPIO_K_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_J),
  75         S3C2410_GPIO_L_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_K),
  76         S3C2410_GPIO_M_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_L),
  77 };
  78
  79 #endif /* __ASSEMBLY__ */
  80
  81 /* S3C2410 GPIO number definitions. */
  82
  83 #define S3C2410_GPA(_nr)        (S3C2410_GPIO_A_START + (_nr))
  84 #define S3C2410_GPB(_nr)        (S3C2410_GPIO_B_START + (_nr))
  85 #define S3C2410_GPC(_nr)        (S3C2410_GPIO_C_START + (_nr))
  86 #define S3C2410_GPD(_nr)        (S3C2410_GPIO_D_START + (_nr))
  87 #define S3C2410_GPE(_nr)        (S3C2410_GPIO_E_START + (_nr))
  88 #define S3C2410_GPF(_nr)        (S3C2410_GPIO_F_START + (_nr))
  89 #define S3C2410_GPG(_nr)        (S3C2410_GPIO_G_START + (_nr))
  90 #define S3C2410_GPH(_nr)        (S3C2410_GPIO_H_START + (_nr))
  91 #define S3C2410_GPJ(_nr)        (S3C2410_GPIO_J_START + (_nr))
  92 #define S3C2410_GPK(_nr)        (S3C2410_GPIO_K_START + (_nr))
  93 #define S3C2410_GPL(_nr)        (S3C2410_GPIO_L_START + (_nr))
  94 #define S3C2410_GPM(_nr)        (S3C2410_GPIO_M_START + (_nr))
  95
  96 #ifdef CONFIG_CPU_S3C244X
  97 #define S3C_GPIO_END    (S3C2410_GPJ(0) + 32)
  98 #elif defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2416)
  99 #define S3C_GPIO_END    (S3C2410_GPM(0) + 32)
 100 #else
 101 #define S3C_GPIO_END    (S3C2410_GPH(0) + 32)
 102 #endif
 103
 104 #endif /* GPIO_SAMSUNG_S3C24XX_H */