arch/x86/include/asm/gpio.h

   1 /*
   2  * Copyright (c) 2012, Google Inc. All rights reserved.
   3  * SPDX-License-Identifier:     GPL-2.0
   4  */
   5
   6 #ifndef _X86_GPIO_H_
   7 #define _X86_GPIO_H_
   8
   9 #include <linux/compiler.h>
  10 #include <asm/arch/gpio.h>
  11 #include <asm-generic/gpio.h>
  12
  13 struct ich6_bank_platdata {
  14         uint32_t base_addr;
  15         const char *bank_name;
  16 };
  17
  18 #define GPIO_MODE_NATIVE        0
  19 #define GPIO_MODE_GPIO          1
  20 #define GPIO_MODE_NONE          1
  21
  22 #define GPIO_DIR_OUTPUT         0
  23 #define GPIO_DIR_INPUT          1
  24
  25 #define GPIO_NO_INVERT          0
  26 #define GPIO_INVERT             1
  27
  28 #define GPIO_LEVEL_LOW          0
  29 #define GPIO_LEVEL_HIGH         1
  30
  31 #define GPIO_NO_BLINK           0
  32 #define GPIO_BLINK              1
  33
  34 #define GPIO_RESET_PWROK        0
  35 #define GPIO_RESET_RSMRST       1
  36
  37 struct pch_gpio_set1 {
  38         u32 gpio0:1;
  39         u32 gpio1:1;
  40         u32 gpio2:1;
  41         u32 gpio3:1;
  42         u32 gpio4:1;
  43         u32 gpio5:1;
  44         u32 gpio6:1;
  45         u32 gpio7:1;
  46         u32 gpio8:1;
  47         u32 gpio9:1;
  48         u32 gpio10:1;
  49         u32 gpio11:1;
  50         u32 gpio12:1;
  51         u32 gpio13:1;
  52         u32 gpio14:1;
  53         u32 gpio15:1;
  54         u32 gpio16:1;
  55         u32 gpio17:1;
  56         u32 gpio18:1;
  57         u32 gpio19:1;
  58         u32 gpio20:1;
  59         u32 gpio21:1;
  60         u32 gpio22:1;
  61         u32 gpio23:1;
  62         u32 gpio24:1;
  63         u32 gpio25:1;
  64         u32 gpio26:1;
  65         u32 gpio27:1;
  66         u32 gpio28:1;
  67         u32 gpio29:1;
  68         u32 gpio30:1;
  69         u32 gpio31:1;
  70 } __packed;
  71
  72 struct pch_gpio_set2 {
  73         u32 gpio32:1;
  74         u32 gpio33:1;
  75         u32 gpio34:1;
  76         u32 gpio35:1;
  77         u32 gpio36:1;
  78         u32 gpio37:1;
  79         u32 gpio38:1;
  80         u32 gpio39:1;
  81         u32 gpio40:1;
  82         u32 gpio41:1;
  83         u32 gpio42:1;
  84         u32 gpio43:1;
  85         u32 gpio44:1;
  86         u32 gpio45:1;
  87         u32 gpio46:1;
  88         u32 gpio47:1;
  89         u32 gpio48:1;
  90         u32 gpio49:1;
  91         u32 gpio50:1;
  92         u32 gpio51:1;
  93         u32 gpio52:1;
  94         u32 gpio53:1;
  95         u32 gpio54:1;
  96         u32 gpio55:1;
  97         u32 gpio56:1;
  98         u32 gpio57:1;
  99         u32 gpio58:1;
 100         u32 gpio59:1;
 101         u32 gpio60:1;
 102         u32 gpio61:1;
 103         u32 gpio62:1;
 104         u32 gpio63:1;
 105 } __packed;
 106
 107 struct pch_gpio_set3 {
 108         u32 gpio64:1;
 109         u32 gpio65:1;
 110         u32 gpio66:1;
 111         u32 gpio67:1;
 112         u32 gpio68:1;
 113         u32 gpio69:1;
 114         u32 gpio70:1;
 115         u32 gpio71:1;
 116         u32 gpio72:1;
 117         u32 gpio73:1;
 118         u32 gpio74:1;
 119         u32 gpio75:1;
 120 } __packed;
 121
 122 /*
 123  * This hilariously complex structure came from Coreboot. The
 124  * setup_pch_gpios() function uses it. It could be move to device tree, or
 125  * adjust to use masks instead of bitfields.
 126  */
 127 struct pch_gpio_map {
 128         struct {
 129                 const struct pch_gpio_set1 *mode;
 130                 const struct pch_gpio_set1 *direction;
 131                 const struct pch_gpio_set1 *level;
 132                 const struct pch_gpio_set1 *reset;
 133                 const struct pch_gpio_set1 *invert;
 134                 const struct pch_gpio_set1 *blink;
 135         } set1;
 136         struct {
 137                 const struct pch_gpio_set2 *mode;
 138                 const struct pch_gpio_set2 *direction;
 139                 const struct pch_gpio_set2 *level;
 140                 const struct pch_gpio_set2 *reset;
 141         } set2;
 142         struct {
 143                 const struct pch_gpio_set3 *mode;
 144                 const struct pch_gpio_set3 *direction;
 145                 const struct pch_gpio_set3 *level;
 146                 const struct pch_gpio_set3 *reset;
 147         } set3;
 148 };
 149
 150 void ich_gpio_set_gpio_map(const struct pch_gpio_map *map);
 151
 152 #endif /* _X86_GPIO_H_ */