linux/arch/arm/mach-pxa/mfp-pxa2xx.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ASM_ARCH_MFP_PXA2XX_H
   3#define __ASM_ARCH_MFP_PXA2XX_H
   4
   5#include <plat/mfp.h>
   6
   7/*
   8 * the following MFP_xxx bit definitions in mfp.h are re-used for pxa2xx:
   9 *
  10 *  MFP_PIN(x)
  11 *  MFP_AFx
  12 *  MFP_LPM_DRIVE_{LOW, HIGH}
  13 *  MFP_LPM_EDGE_x
  14 *
  15 * other MFP_x bit definitions will be ignored
  16 *
  17 * and adds the below two bits specifically for pxa2xx:
  18 *
  19 * bit     23 - Input/Output (PXA2xx specific)
  20 * bit     24 - Wakeup Enable(PXA2xx specific)
  21 * bit     25 - Keep Output  (PXA2xx specific)
  22 */
  23
  24#define MFP_DIR_IN              (0x0 << 23)
  25#define MFP_DIR_OUT             (0x1 << 23)
  26#define MFP_DIR_MASK            (0x1 << 23)
  27#define MFP_DIR(x)              (((x) >> 23) & 0x1)
  28
  29#define MFP_LPM_CAN_WAKEUP      (0x1 << 24)
  30
  31/*
  32 * MFP_LPM_KEEP_OUTPUT must be specified for pins that need to
  33 * retain their last output level (low or high).
  34 * Note: MFP_LPM_KEEP_OUTPUT has no effect on pins configured for input.
  35 */
  36#define MFP_LPM_KEEP_OUTPUT     (0x1 << 25)
  37
  38#define WAKEUP_ON_EDGE_RISE     (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_RISE)
  39#define WAKEUP_ON_EDGE_FALL     (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_FALL)
  40#define WAKEUP_ON_EDGE_BOTH     (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_BOTH)
  41
  42/* specifically for enabling wakeup on keypad GPIOs */
  43#define WAKEUP_ON_LEVEL_HIGH    (MFP_LPM_CAN_WAKEUP)
  44
  45#define MFP_CFG_IN(pin, af)             \
  46        ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DIR_MASK)) |\
  47         (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DIR_IN))
  48
  49/* NOTE:  pins configured as output _must_ provide a low power state,
  50 * and this state should help to minimize the power dissipation.
  51 */
  52#define MFP_CFG_OUT(pin, af, state)     \
  53        ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DIR_MASK | MFP_LPM_STATE_MASK)) |\
  54         (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DIR_OUT | MFP_LPM_##state))
  55
  56/* Common configurations for pxa25x and pxa27x
  57 *
  58 * Note: pins configured as GPIO are always initialized to input
  59 * so not to cause any side effect
  60 */
  61#define GPIO0_GPIO      MFP_CFG_IN(GPIO0, AF0)
  62#define GPIO1_GPIO      MFP_CFG_IN(GPIO1, AF0)
  63#define GPIO9_GPIO      MFP_CFG_IN(GPIO9, AF0)
  64#define GPIO10_GPIO     MFP_CFG_IN(GPIO10, AF0)
  65#define GPIO11_GPIO     MFP_CFG_IN(GPIO11, AF0)
  66#define GPIO12_GPIO     MFP_CFG_IN(GPIO12, AF0)
  67#define GPIO13_GPIO     MFP_CFG_IN(GPIO13, AF0)
  68#define GPIO14_GPIO     MFP_CFG_IN(GPIO14, AF0)
  69#define GPIO15_GPIO     MFP_CFG_IN(GPIO15, AF0)
  70#define GPIO16_GPIO     MFP_CFG_IN(GPIO16, AF0)
  71#define GPIO17_GPIO     MFP_CFG_IN(GPIO17, AF0)
  72#define GPIO18_GPIO     MFP_CFG_IN(GPIO18, AF0)
  73#define GPIO19_GPIO     MFP_CFG_IN(GPIO19, AF0)
  74#define GPIO20_GPIO     MFP_CFG_IN(GPIO20, AF0)
  75#define GPIO21_GPIO     MFP_CFG_IN(GPIO21, AF0)
  76#define GPIO22_GPIO     MFP_CFG_IN(GPIO22, AF0)
  77#define GPIO23_GPIO     MFP_CFG_IN(GPIO23, AF0)
  78#define GPIO24_GPIO     MFP_CFG_IN(GPIO24, AF0)
  79#define GPIO25_GPIO     MFP_CFG_IN(GPIO25, AF0)
  80#define GPIO26_GPIO     MFP_CFG_IN(GPIO26, AF0)
  81#define GPIO27_GPIO     MFP_CFG_IN(GPIO27, AF0)
  82#define GPIO28_GPIO     MFP_CFG_IN(GPIO28, AF0)
  83#define GPIO29_GPIO     MFP_CFG_IN(GPIO29, AF0)
  84#define GPIO30_GPIO     MFP_CFG_IN(GPIO30, AF0)
  85#define GPIO31_GPIO     MFP_CFG_IN(GPIO31, AF0)
  86#define GPIO32_GPIO     MFP_CFG_IN(GPIO32, AF0)
  87#define GPIO33_GPIO     MFP_CFG_IN(GPIO33, AF0)
  88#define GPIO34_GPIO     MFP_CFG_IN(GPIO34, AF0)
  89#define GPIO35_GPIO     MFP_CFG_IN(GPIO35, AF0)
  90#define GPIO36_GPIO     MFP_CFG_IN(GPIO36, AF0)
  91#define GPIO37_GPIO     MFP_CFG_IN(GPIO37, AF0)
  92#define GPIO38_GPIO     MFP_CFG_IN(GPIO38, AF0)
  93#define GPIO39_GPIO     MFP_CFG_IN(GPIO39, AF0)
  94#define GPIO40_GPIO     MFP_CFG_IN(GPIO40, AF0)
  95#define GPIO41_GPIO     MFP_CFG_IN(GPIO41, AF0)
  96#define GPIO42_GPIO     MFP_CFG_IN(GPIO42, AF0)
  97#define GPIO43_GPIO     MFP_CFG_IN(GPIO43, AF0)
  98#define GPIO44_GPIO     MFP_CFG_IN(GPIO44, AF0)
  99#define GPIO45_GPIO     MFP_CFG_IN(GPIO45, AF0)
 100#define GPIO46_GPIO     MFP_CFG_IN(GPIO46, AF0)
 101#define GPIO47_GPIO     MFP_CFG_IN(GPIO47, AF0)
 102#define GPIO48_GPIO     MFP_CFG_IN(GPIO48, AF0)
 103#define GPIO49_GPIO     MFP_CFG_IN(GPIO49, AF0)
 104#define GPIO50_GPIO     MFP_CFG_IN(GPIO50, AF0)
 105#define GPIO51_GPIO     MFP_CFG_IN(GPIO51, AF0)
 106#define GPIO52_GPIO     MFP_CFG_IN(GPIO52, AF0)
 107#define GPIO53_GPIO     MFP_CFG_IN(GPIO53, AF0)
 108#define GPIO54_GPIO     MFP_CFG_IN(GPIO54, AF0)
 109#define GPIO55_GPIO     MFP_CFG_IN(GPIO55, AF0)
 110#define GPIO56_GPIO     MFP_CFG_IN(GPIO56, AF0)
 111#define GPIO57_GPIO     MFP_CFG_IN(GPIO57, AF0)
 112#define GPIO58_GPIO     MFP_CFG_IN(GPIO58, AF0)
 113#define GPIO59_GPIO     MFP_CFG_IN(GPIO59, AF0)
 114#define GPIO60_GPIO     MFP_CFG_IN(GPIO60, AF0)
 115#define GPIO61_GPIO     MFP_CFG_IN(GPIO61, AF0)
 116#define GPIO62_GPIO     MFP_CFG_IN(GPIO62, AF0)
 117#define GPIO63_GPIO     MFP_CFG_IN(GPIO63, AF0)
 118#define GPIO64_GPIO     MFP_CFG_IN(GPIO64, AF0)
 119#define GPIO65_GPIO     MFP_CFG_IN(GPIO65, AF0)
 120#define GPIO66_GPIO     MFP_CFG_IN(GPIO66, AF0)
 121#define GPIO67_GPIO     MFP_CFG_IN(GPIO67, AF0)
 122#define GPIO68_GPIO     MFP_CFG_IN(GPIO68, AF0)
 123#define GPIO69_GPIO     MFP_CFG_IN(GPIO69, AF0)
 124#define GPIO70_GPIO     MFP_CFG_IN(GPIO70, AF0)
 125#define GPIO71_GPIO     MFP_CFG_IN(GPIO71, AF0)
 126#define GPIO72_GPIO     MFP_CFG_IN(GPIO72, AF0)
 127#define GPIO73_GPIO     MFP_CFG_IN(GPIO73, AF0)
 128#define GPIO74_GPIO     MFP_CFG_IN(GPIO74, AF0)
 129#define GPIO75_GPIO     MFP_CFG_IN(GPIO75, AF0)
 130#define GPIO76_GPIO     MFP_CFG_IN(GPIO76, AF0)
 131#define GPIO77_GPIO     MFP_CFG_IN(GPIO77, AF0)
 132#define GPIO78_GPIO     MFP_CFG_IN(GPIO78, AF0)
 133#define GPIO79_GPIO     MFP_CFG_IN(GPIO79, AF0)
 134#define GPIO80_GPIO     MFP_CFG_IN(GPIO80, AF0)
 135#define GPIO81_GPIO     MFP_CFG_IN(GPIO81, AF0)
 136#define GPIO82_GPIO     MFP_CFG_IN(GPIO82, AF0)
 137#define GPIO83_GPIO     MFP_CFG_IN(GPIO83, AF0)
 138#define GPIO84_GPIO     MFP_CFG_IN(GPIO84, AF0)
 139
 140extern void pxa2xx_mfp_config(unsigned long *mfp_cfgs, int num);
 141extern void pxa2xx_mfp_set_lpm(int mfp, unsigned long lpm);
 142extern int gpio_set_wake(unsigned int gpio, unsigned int on);
 143#endif /* __ASM_ARCH_MFP_PXA2XX_H */
 144