mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-20 23:34:47 +07:00
c3123cfdc9
This merges the old <plat/pincfg.h> header into <linux/platform_data/pinctrl-nomadik.h> and rids us of yet one more <plat/*> include. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
267 lines
9.0 KiB
C
267 lines
9.0 KiB
C
/*
|
|
* Structures and registers for GPIO access in the Nomadik SoC
|
|
*
|
|
* Copyright (C) 2008 STMicroelectronics
|
|
* Author: Prafulla WADASKAR <prafulla.wadaskar@st.com>
|
|
* Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __PLAT_NOMADIK_GPIO
|
|
#define __PLAT_NOMADIK_GPIO
|
|
|
|
/*
|
|
* pin configurations are represented by 32-bit integers:
|
|
*
|
|
* bit 0.. 8 - Pin Number (512 Pins Maximum)
|
|
* bit 9..10 - Alternate Function Selection
|
|
* bit 11..12 - Pull up/down state
|
|
* bit 13 - Sleep mode behaviour
|
|
* bit 14 - Direction
|
|
* bit 15 - Value (if output)
|
|
* bit 16..18 - SLPM pull up/down state
|
|
* bit 19..20 - SLPM direction
|
|
* bit 21..22 - SLPM Value (if output)
|
|
* bit 23..25 - PDIS value (if input)
|
|
* bit 26 - Gpio mode
|
|
* bit 27 - Sleep mode
|
|
*
|
|
* to facilitate the definition, the following macros are provided
|
|
*
|
|
* PIN_CFG_DEFAULT - default config (0):
|
|
* pull up/down = disabled
|
|
* sleep mode = input/wakeup
|
|
* direction = input
|
|
* value = low
|
|
* SLPM direction = same as normal
|
|
* SLPM pull = same as normal
|
|
* SLPM value = same as normal
|
|
*
|
|
* PIN_CFG - default config with alternate function
|
|
*/
|
|
|
|
typedef unsigned long pin_cfg_t;
|
|
|
|
#define PIN_NUM_MASK 0x1ff
|
|
#define PIN_NUM(x) ((x) & PIN_NUM_MASK)
|
|
|
|
#define PIN_ALT_SHIFT 9
|
|
#define PIN_ALT_MASK (0x3 << PIN_ALT_SHIFT)
|
|
#define PIN_ALT(x) (((x) & PIN_ALT_MASK) >> PIN_ALT_SHIFT)
|
|
#define PIN_GPIO (NMK_GPIO_ALT_GPIO << PIN_ALT_SHIFT)
|
|
#define PIN_ALT_A (NMK_GPIO_ALT_A << PIN_ALT_SHIFT)
|
|
#define PIN_ALT_B (NMK_GPIO_ALT_B << PIN_ALT_SHIFT)
|
|
#define PIN_ALT_C (NMK_GPIO_ALT_C << PIN_ALT_SHIFT)
|
|
|
|
#define PIN_PULL_SHIFT 11
|
|
#define PIN_PULL_MASK (0x3 << PIN_PULL_SHIFT)
|
|
#define PIN_PULL(x) (((x) & PIN_PULL_MASK) >> PIN_PULL_SHIFT)
|
|
#define PIN_PULL_NONE (NMK_GPIO_PULL_NONE << PIN_PULL_SHIFT)
|
|
#define PIN_PULL_UP (NMK_GPIO_PULL_UP << PIN_PULL_SHIFT)
|
|
#define PIN_PULL_DOWN (NMK_GPIO_PULL_DOWN << PIN_PULL_SHIFT)
|
|
|
|
#define PIN_SLPM_SHIFT 13
|
|
#define PIN_SLPM_MASK (0x1 << PIN_SLPM_SHIFT)
|
|
#define PIN_SLPM(x) (((x) & PIN_SLPM_MASK) >> PIN_SLPM_SHIFT)
|
|
#define PIN_SLPM_MAKE_INPUT (NMK_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT)
|
|
#define PIN_SLPM_NOCHANGE (NMK_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT)
|
|
/* These two replace the above in DB8500v2+ */
|
|
#define PIN_SLPM_WAKEUP_ENABLE (NMK_GPIO_SLPM_WAKEUP_ENABLE << PIN_SLPM_SHIFT)
|
|
#define PIN_SLPM_WAKEUP_DISABLE (NMK_GPIO_SLPM_WAKEUP_DISABLE << PIN_SLPM_SHIFT)
|
|
#define PIN_SLPM_USE_MUX_SETTINGS_IN_SLEEP PIN_SLPM_WAKEUP_DISABLE
|
|
|
|
#define PIN_SLPM_GPIO PIN_SLPM_WAKEUP_ENABLE /* In SLPM, pin is a gpio */
|
|
#define PIN_SLPM_ALTFUNC PIN_SLPM_WAKEUP_DISABLE /* In SLPM, pin is altfunc */
|
|
|
|
#define PIN_DIR_SHIFT 14
|
|
#define PIN_DIR_MASK (0x1 << PIN_DIR_SHIFT)
|
|
#define PIN_DIR(x) (((x) & PIN_DIR_MASK) >> PIN_DIR_SHIFT)
|
|
#define PIN_DIR_INPUT (0 << PIN_DIR_SHIFT)
|
|
#define PIN_DIR_OUTPUT (1 << PIN_DIR_SHIFT)
|
|
|
|
#define PIN_VAL_SHIFT 15
|
|
#define PIN_VAL_MASK (0x1 << PIN_VAL_SHIFT)
|
|
#define PIN_VAL(x) (((x) & PIN_VAL_MASK) >> PIN_VAL_SHIFT)
|
|
#define PIN_VAL_LOW (0 << PIN_VAL_SHIFT)
|
|
#define PIN_VAL_HIGH (1 << PIN_VAL_SHIFT)
|
|
|
|
#define PIN_SLPM_PULL_SHIFT 16
|
|
#define PIN_SLPM_PULL_MASK (0x7 << PIN_SLPM_PULL_SHIFT)
|
|
#define PIN_SLPM_PULL(x) \
|
|
(((x) & PIN_SLPM_PULL_MASK) >> PIN_SLPM_PULL_SHIFT)
|
|
#define PIN_SLPM_PULL_NONE \
|
|
((1 + NMK_GPIO_PULL_NONE) << PIN_SLPM_PULL_SHIFT)
|
|
#define PIN_SLPM_PULL_UP \
|
|
((1 + NMK_GPIO_PULL_UP) << PIN_SLPM_PULL_SHIFT)
|
|
#define PIN_SLPM_PULL_DOWN \
|
|
((1 + NMK_GPIO_PULL_DOWN) << PIN_SLPM_PULL_SHIFT)
|
|
|
|
#define PIN_SLPM_DIR_SHIFT 19
|
|
#define PIN_SLPM_DIR_MASK (0x3 << PIN_SLPM_DIR_SHIFT)
|
|
#define PIN_SLPM_DIR(x) \
|
|
(((x) & PIN_SLPM_DIR_MASK) >> PIN_SLPM_DIR_SHIFT)
|
|
#define PIN_SLPM_DIR_INPUT ((1 + 0) << PIN_SLPM_DIR_SHIFT)
|
|
#define PIN_SLPM_DIR_OUTPUT ((1 + 1) << PIN_SLPM_DIR_SHIFT)
|
|
|
|
#define PIN_SLPM_VAL_SHIFT 21
|
|
#define PIN_SLPM_VAL_MASK (0x3 << PIN_SLPM_VAL_SHIFT)
|
|
#define PIN_SLPM_VAL(x) \
|
|
(((x) & PIN_SLPM_VAL_MASK) >> PIN_SLPM_VAL_SHIFT)
|
|
#define PIN_SLPM_VAL_LOW ((1 + 0) << PIN_SLPM_VAL_SHIFT)
|
|
#define PIN_SLPM_VAL_HIGH ((1 + 1) << PIN_SLPM_VAL_SHIFT)
|
|
|
|
#define PIN_SLPM_PDIS_SHIFT 23
|
|
#define PIN_SLPM_PDIS_MASK (0x3 << PIN_SLPM_PDIS_SHIFT)
|
|
#define PIN_SLPM_PDIS(x) \
|
|
(((x) & PIN_SLPM_PDIS_MASK) >> PIN_SLPM_PDIS_SHIFT)
|
|
#define PIN_SLPM_PDIS_NO_CHANGE (0 << PIN_SLPM_PDIS_SHIFT)
|
|
#define PIN_SLPM_PDIS_DISABLED (1 << PIN_SLPM_PDIS_SHIFT)
|
|
#define PIN_SLPM_PDIS_ENABLED (2 << PIN_SLPM_PDIS_SHIFT)
|
|
|
|
#define PIN_LOWEMI_SHIFT 25
|
|
#define PIN_LOWEMI_MASK (0x1 << PIN_LOWEMI_SHIFT)
|
|
#define PIN_LOWEMI(x) (((x) & PIN_LOWEMI_MASK) >> PIN_LOWEMI_SHIFT)
|
|
#define PIN_LOWEMI_DISABLED (0 << PIN_LOWEMI_SHIFT)
|
|
#define PIN_LOWEMI_ENABLED (1 << PIN_LOWEMI_SHIFT)
|
|
|
|
#define PIN_GPIOMODE_SHIFT 26
|
|
#define PIN_GPIOMODE_MASK (0x1 << PIN_GPIOMODE_SHIFT)
|
|
#define PIN_GPIOMODE(x) (((x) & PIN_GPIOMODE_MASK) >> PIN_GPIOMODE_SHIFT)
|
|
#define PIN_GPIOMODE_DISABLED (0 << PIN_GPIOMODE_SHIFT)
|
|
#define PIN_GPIOMODE_ENABLED (1 << PIN_GPIOMODE_SHIFT)
|
|
|
|
#define PIN_SLEEPMODE_SHIFT 27
|
|
#define PIN_SLEEPMODE_MASK (0x1 << PIN_SLEEPMODE_SHIFT)
|
|
#define PIN_SLEEPMODE(x) (((x) & PIN_SLEEPMODE_MASK) >> PIN_SLEEPMODE_SHIFT)
|
|
#define PIN_SLEEPMODE_DISABLED (0 << PIN_SLEEPMODE_SHIFT)
|
|
#define PIN_SLEEPMODE_ENABLED (1 << PIN_SLEEPMODE_SHIFT)
|
|
|
|
|
|
/* Shortcuts. Use these instead of separate DIR, PULL, and VAL. */
|
|
#define PIN_INPUT_PULLDOWN (PIN_DIR_INPUT | PIN_PULL_DOWN)
|
|
#define PIN_INPUT_PULLUP (PIN_DIR_INPUT | PIN_PULL_UP)
|
|
#define PIN_INPUT_NOPULL (PIN_DIR_INPUT | PIN_PULL_NONE)
|
|
#define PIN_OUTPUT_LOW (PIN_DIR_OUTPUT | PIN_VAL_LOW)
|
|
#define PIN_OUTPUT_HIGH (PIN_DIR_OUTPUT | PIN_VAL_HIGH)
|
|
|
|
#define PIN_SLPM_INPUT_PULLDOWN (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_DOWN)
|
|
#define PIN_SLPM_INPUT_PULLUP (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_UP)
|
|
#define PIN_SLPM_INPUT_NOPULL (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_NONE)
|
|
#define PIN_SLPM_OUTPUT_LOW (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_LOW)
|
|
#define PIN_SLPM_OUTPUT_HIGH (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_HIGH)
|
|
|
|
#define PIN_CFG_DEFAULT (0)
|
|
|
|
#define PIN_CFG(num, alt) \
|
|
(PIN_CFG_DEFAULT |\
|
|
(PIN_NUM(num) | PIN_##alt))
|
|
|
|
#define PIN_CFG_INPUT(num, alt, pull) \
|
|
(PIN_CFG_DEFAULT |\
|
|
(PIN_NUM(num) | PIN_##alt | PIN_INPUT_##pull))
|
|
|
|
#define PIN_CFG_OUTPUT(num, alt, val) \
|
|
(PIN_CFG_DEFAULT |\
|
|
(PIN_NUM(num) | PIN_##alt | PIN_OUTPUT_##val))
|
|
|
|
/*
|
|
* "nmk_gpio" and "NMK_GPIO" stand for "Nomadik GPIO", leaving
|
|
* the "gpio" namespace for generic and cross-machine functions
|
|
*/
|
|
|
|
#define GPIO_BLOCK_SHIFT 5
|
|
#define NMK_GPIO_PER_CHIP (1 << GPIO_BLOCK_SHIFT)
|
|
|
|
/* Register in the logic block */
|
|
#define NMK_GPIO_DAT 0x00
|
|
#define NMK_GPIO_DATS 0x04
|
|
#define NMK_GPIO_DATC 0x08
|
|
#define NMK_GPIO_PDIS 0x0c
|
|
#define NMK_GPIO_DIR 0x10
|
|
#define NMK_GPIO_DIRS 0x14
|
|
#define NMK_GPIO_DIRC 0x18
|
|
#define NMK_GPIO_SLPC 0x1c
|
|
#define NMK_GPIO_AFSLA 0x20
|
|
#define NMK_GPIO_AFSLB 0x24
|
|
#define NMK_GPIO_LOWEMI 0x28
|
|
|
|
#define NMK_GPIO_RIMSC 0x40
|
|
#define NMK_GPIO_FIMSC 0x44
|
|
#define NMK_GPIO_IS 0x48
|
|
#define NMK_GPIO_IC 0x4c
|
|
#define NMK_GPIO_RWIMSC 0x50
|
|
#define NMK_GPIO_FWIMSC 0x54
|
|
#define NMK_GPIO_WKS 0x58
|
|
/* These appear in DB8540 and later ASICs */
|
|
#define NMK_GPIO_EDGELEVEL 0x5C
|
|
#define NMK_GPIO_LEVEL 0x60
|
|
|
|
/* Alternate functions: function C is set in hw by setting both A and B */
|
|
#define NMK_GPIO_ALT_GPIO 0
|
|
#define NMK_GPIO_ALT_A 1
|
|
#define NMK_GPIO_ALT_B 2
|
|
#define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B)
|
|
|
|
#define NMK_GPIO_ALT_CX_SHIFT 2
|
|
#define NMK_GPIO_ALT_C1 ((1<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C)
|
|
#define NMK_GPIO_ALT_C2 ((2<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C)
|
|
#define NMK_GPIO_ALT_C3 ((3<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C)
|
|
#define NMK_GPIO_ALT_C4 ((4<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C)
|
|
|
|
/* Pull up/down values */
|
|
enum nmk_gpio_pull {
|
|
NMK_GPIO_PULL_NONE,
|
|
NMK_GPIO_PULL_UP,
|
|
NMK_GPIO_PULL_DOWN,
|
|
};
|
|
|
|
/* Sleep mode */
|
|
enum nmk_gpio_slpm {
|
|
NMK_GPIO_SLPM_INPUT,
|
|
NMK_GPIO_SLPM_WAKEUP_ENABLE = NMK_GPIO_SLPM_INPUT,
|
|
NMK_GPIO_SLPM_NOCHANGE,
|
|
NMK_GPIO_SLPM_WAKEUP_DISABLE = NMK_GPIO_SLPM_NOCHANGE,
|
|
};
|
|
|
|
/* Older deprecated pin config API that should go away soon */
|
|
extern int nmk_config_pin(pin_cfg_t cfg, bool sleep);
|
|
extern int nmk_config_pins(pin_cfg_t *cfgs, int num);
|
|
extern int nmk_config_pins_sleep(pin_cfg_t *cfgs, int num);
|
|
extern int nmk_gpio_set_slpm(int gpio, enum nmk_gpio_slpm mode);
|
|
extern int nmk_gpio_set_pull(int gpio, enum nmk_gpio_pull pull);
|
|
#ifdef CONFIG_PINCTRL_NOMADIK
|
|
extern int nmk_gpio_set_mode(int gpio, int gpio_mode);
|
|
#else
|
|
static inline int nmk_gpio_set_mode(int gpio, int gpio_mode)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
#endif
|
|
extern int nmk_gpio_get_mode(int gpio);
|
|
|
|
extern void nmk_gpio_wakeups_suspend(void);
|
|
extern void nmk_gpio_wakeups_resume(void);
|
|
|
|
extern void nmk_gpio_clocks_enable(void);
|
|
extern void nmk_gpio_clocks_disable(void);
|
|
|
|
extern void nmk_gpio_read_pull(int gpio_bank, u32 *pull_up);
|
|
|
|
/*
|
|
* Platform data to register a block: only the initial gpio/irq number.
|
|
*/
|
|
struct nmk_gpio_platform_data {
|
|
char *name;
|
|
int first_gpio;
|
|
int first_irq;
|
|
int num_gpio;
|
|
u32 (*get_secondary_status)(unsigned int bank);
|
|
void (*set_ioforce)(bool enable);
|
|
bool supports_sleepmode;
|
|
};
|
|
|
|
#endif /* __PLAT_NOMADIK_GPIO */
|