arch/arm/mach-s3c24xx/include/mach/gpio.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 __MACH_GPIO_H
  18 #define __MACH_GPIO_H __FILE__
  19
  20 #ifdef CONFIG_CPU_S3C244X
  21 #define ARCH_NR_GPIOS   (32 * 9 + CONFIG_S3C24XX_GPIO_EXTRA)
  22 #elif defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2416)
  23 #define ARCH_NR_GPIOS   (32 * 12 + CONFIG_S3C24XX_GPIO_EXTRA)
  24 #else
  25 #define ARCH_NR_GPIOS   (256 + CONFIG_S3C24XX_GPIO_EXTRA)
  26 #endif
  27
  28 /*
  29  * GPIO sizes for various SoCs:
  30  *
  31  *   2410 2412 2440 2443 2416
  32  *             2442
  33  *   ---- ---- ---- ---- ----
  34  * A  23   22   25   16   25
  35  * B  11   11   11   11   9
  36  * C  16   15   16   16   16
  37  * D  16   16   16   16   16
  38  * E  16   16   16   16   16
  39  * F  8    8    8    8    8
  40  * G  16   16   16   16   8
  41  * H  11   11   9    15   15
  42  * J  --   --   13   16   --
  43  * K  --   --   --   --   16
  44  * L  --   --   --   15   7
  45  * M  --   --   --   2    2
  46  */
  47
  48 /* GPIO bank sizes */
  49
  50 #define S3C2410_GPIO_A_NR       (32)
  51 #define S3C2410_GPIO_B_NR       (32)
  52 #define S3C2410_GPIO_C_NR       (32)
  53 #define S3C2410_GPIO_D_NR       (32)
  54 #define S3C2410_GPIO_E_NR       (32)
  55 #define S3C2410_GPIO_F_NR       (32)
  56 #define S3C2410_GPIO_G_NR       (32)
  57 #define S3C2410_GPIO_H_NR       (32)
  58 #define S3C2410_GPIO_J_NR       (32)    /* technically 16. */
  59 #define S3C2410_GPIO_K_NR       (32)    /* technically 16. */
  60 #define S3C2410_GPIO_L_NR       (32)    /* technically 15. */
  61 #define S3C2410_GPIO_M_NR       (32)    /* technically 2. */
  62
  63 #if CONFIG_S3C_GPIO_SPACE != 0
  64 #error CONFIG_S3C_GPIO_SPACE cannot be nonzero at the moment
  65 #endif
  66
  67 #define S3C2410_GPIO_NEXT(__gpio) \
  68         ((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 0)
  69
  70 #ifndef __ASSEMBLY__
  71
  72 enum s3c_gpio_number {
  73         S3C2410_GPIO_A_START = 0,
  74         S3C2410_GPIO_B_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_A),
  75         S3C2410_GPIO_C_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_B),
  76         S3C2410_GPIO_D_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_C),
  77         S3C2410_GPIO_E_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_D),
  78         S3C2410_GPIO_F_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_E),
  79         S3C2410_GPIO_G_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_F),
  80         S3C2410_GPIO_H_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_G),
  81         S3C2410_GPIO_J_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_H),
  82         S3C2410_GPIO_K_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_J),
  83         S3C2410_GPIO_L_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_K),
  84         S3C2410_GPIO_M_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_L),
  85 };
  86
  87 #endif /* __ASSEMBLY__ */
  88
  89 /* S3C2410 GPIO number definitions. */
  90
  91 #define S3C2410_GPA(_nr)        (S3C2410_GPIO_A_START + (_nr))
  92 #define S3C2410_GPB(_nr)        (S3C2410_GPIO_B_START + (_nr))
  93 #define S3C2410_GPC(_nr)        (S3C2410_GPIO_C_START + (_nr))
  94 #define S3C2410_GPD(_nr)        (S3C2410_GPIO_D_START + (_nr))
  95 #define S3C2410_GPE(_nr)        (S3C2410_GPIO_E_START + (_nr))
  96 #define S3C2410_GPF(_nr)        (S3C2410_GPIO_F_START + (_nr))
  97 #define S3C2410_GPG(_nr)        (S3C2410_GPIO_G_START + (_nr))
  98 #define S3C2410_GPH(_nr)        (S3C2410_GPIO_H_START + (_nr))
  99 #define S3C2410_GPJ(_nr)        (S3C2410_GPIO_J_START + (_nr))
 100 #define S3C2410_GPK(_nr)        (S3C2410_GPIO_K_START + (_nr))
 101 #define S3C2410_GPL(_nr)        (S3C2410_GPIO_L_START + (_nr))
 102 #define S3C2410_GPM(_nr)        (S3C2410_GPIO_M_START + (_nr))
 103
 104 #include <plat/gpio-cfg.h>
 105
 106 #ifdef CONFIG_CPU_S3C244X
 107 #define S3C_GPIO_END    (S3C2410_GPJ(0) + 32)
 108 #elif defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2416)
 109 #define S3C_GPIO_END    (S3C2410_GPM(0) + 32)
 110 #else
 111 #define S3C_GPIO_END    (S3C2410_GPH(0) + 32)
 112 #endif
 113
 114 #endif /* __MACH_GPIO_H */