lp_gpio.h File Reference

#include <stdint.h>

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Data Structures
struct	pch_lp_gpio_map

Macros
#define	GPIO_OWNER(set)   (0x00 + ((set) * 4))
#define	GPIO_PIRQ_APIC_EN   0x10
#define	GPIO_BLINK   0x18
#define	GPIO_SER_BLINK   0x1c
#define	GPIO_SER_BLINK_CS   0x20
#define	GPIO_SER_BLINK_DATA   0x24
#define	GPIO_ROUTE(set)   (0x30 + ((set) * 4))
#define	GPIO_RESET(set)   (0x60 + ((set) * 4))
#define	GPIO_GLOBAL_CONFIG   0x7c
#define	GPIO_IRQ_IS(set)   (0x80 + ((set) * 4))
#define	GPIO_IRQ_IE(set)   (0x90 + ((set) * 4))
#define	GPIO_CONFIG0(gpio)   (0x100 + ((gpio) * 8))
#define	GPIO_CONFIG1(gpio)   (0x104 + ((gpio) * 8))
#define	MAX_GPIO_NUMBER   94 /* zero based */
#define	GPIO_LIST_END   0xffffffff
#define	GPIO_MODE_NATIVE   (0 << 0)
#define	GPIO_MODE_GPIO   (1 << 0)
#define	GPIO_DIR_OUTPUT   (0 << 2)
#define	GPIO_DIR_INPUT   (1 << 2)
#define	GPIO_NO_INVERT   (0 << 3)
#define	GPIO_INVERT   (1 << 3)
#define	GPIO_IRQ_EDGE   (0 << 4)
#define	GPIO_IRQ_LEVEL   (1 << 4)
#define	GPI_LEVEL   (1 << 30)
#define	GPO_LEVEL_SHIFT   31
#define	GPO_LEVEL_MASK   (1 << GPO_LEVEL_SHIFT)
#define	GPO_LEVEL_LOW   (0 << GPO_LEVEL_SHIFT)
#define	GPO_LEVEL_HIGH   (1 << GPO_LEVEL_SHIFT)
#define	GPIO_PULL_NONE   (0 << 0)
#define	GPIO_PULL_DOWN   (1 << 0)
#define	GPIO_PULL_UP   (2 << 0)
#define	GPIO_SENSE_ENABLE   (0 << 2)
#define	GPIO_SENSE_DISABLE   (1 << 2)
#define	GPIO_OWNER_ACPI   0
#define	GPIO_OWNER_GPIO   1
#define	GPIO_ROUTE_SCI   0
#define	GPIO_ROUTE_SMI   1
#define	GPIO_IRQ_DISABLE   0
#define	GPIO_IRQ_ENABLE   1
#define	GPO_NO_BLINK   0
#define	GPO_BLINK   1
#define	GPIO_RESET_PWROK   0
#define	GPIO_RESET_RSMRST   1
#define	GPIO_PIRQ_APIC_MASK   0
#define	GPIO_PIRQ_APIC_ROUTE   1
#define	LP_GPIO_END    { .conf0 = GPIO_LIST_END }
#define	LP_GPIO_NATIVE    { .conf0 = GPIO_MODE_NATIVE }
#define	LP_GPIO_UNUSED
#define	LP_GPIO_ACPI_SCI
#define	LP_GPIO_ACPI_SMI
#define	LP_GPIO_INPUT
#define	LP_GPIO_INPUT_INVERT
#define	LP_GPIO_IRQ_EDGE
#define	LP_GPIO_IRQ_LEVEL
#define	LP_GPIO_PIRQ
#define	LP_GPIO_PIRQ_INVERT
#define	LP_GPIO_OUT_HIGH
#define	LP_GPIO_OUT_LOW

Functions
void	setup_pch_lp_gpios (const struct pch_lp_gpio_map map[])
int	get_gpio (int gpio_num)
void	set_gpio (int gpio_num, int value)
int	gpio_is_native (int gpio_num)
unsigned int	get_gpios (const int *gpio_num_array)

Variables
struct pch_lp_gpio_map	__packed
const struct pch_lp_gpio_map	mainboard_lp_gpio_map []

Macro Definition Documentation

GPI_LEVEL

#define GPI_LEVEL   (1 << 30)

Definition at line 40 of file lp_gpio.h.

GPIO_BLINK

#define GPIO_BLINK   0x18

Definition at line 11 of file lp_gpio.h.

GPIO_CONFIG0

#define GPIO_CONFIG0

(

gpio

)

(0x100 + ((gpio) * 8))

Definition at line 20 of file lp_gpio.h.

GPIO_CONFIG1

#define GPIO_CONFIG1

(

gpio

)

(0x104 + ((gpio) * 8))

Definition at line 21 of file lp_gpio.h.

GPIO_DIR_INPUT

#define GPIO_DIR_INPUT   (1 << 2)

Definition at line 32 of file lp_gpio.h.

GPIO_DIR_OUTPUT

#define GPIO_DIR_OUTPUT   (0 << 2)

Definition at line 31 of file lp_gpio.h.

GPIO_GLOBAL_CONFIG

#define GPIO_GLOBAL_CONFIG   0x7c

Definition at line 17 of file lp_gpio.h.

GPIO_INVERT

#define GPIO_INVERT   (1 << 3)

Definition at line 35 of file lp_gpio.h.

GPIO_IRQ_DISABLE

#define GPIO_IRQ_DISABLE   0

Definition at line 68 of file lp_gpio.h.

GPIO_IRQ_EDGE

#define GPIO_IRQ_EDGE   (0 << 4)

Definition at line 37 of file lp_gpio.h.

GPIO_IRQ_ENABLE

#define GPIO_IRQ_ENABLE   1

Definition at line 69 of file lp_gpio.h.

GPIO_IRQ_IE

#define GPIO_IRQ_IE

(

set

)

(0x90 + ((set) * 4))

Definition at line 19 of file lp_gpio.h.

GPIO_IRQ_IS

#define GPIO_IRQ_IS

(

set

)

(0x80 + ((set) * 4))

Definition at line 18 of file lp_gpio.h.

GPIO_IRQ_LEVEL

#define GPIO_IRQ_LEVEL   (1 << 4)

Definition at line 38 of file lp_gpio.h.

GPIO_LIST_END

#define GPIO_LIST_END   0xffffffff

Definition at line 24 of file lp_gpio.h.

GPIO_MODE_GPIO

#define GPIO_MODE_GPIO   (1 << 0)

Definition at line 29 of file lp_gpio.h.

GPIO_MODE_NATIVE

#define GPIO_MODE_NATIVE   (0 << 0)

Definition at line 28 of file lp_gpio.h.

GPIO_NO_INVERT

#define GPIO_NO_INVERT   (0 << 3)

Definition at line 34 of file lp_gpio.h.

GPIO_OWNER

#define GPIO_OWNER

(

set

)

(0x00 + ((set) * 4))

Definition at line 9 of file lp_gpio.h.

GPIO_OWNER_ACPI

#define GPIO_OWNER_ACPI   0

Definition at line 58 of file lp_gpio.h.

GPIO_OWNER_GPIO

#define GPIO_OWNER_GPIO   1

Definition at line 59 of file lp_gpio.h.

GPIO_PIRQ_APIC_EN

#define GPIO_PIRQ_APIC_EN   0x10

Definition at line 10 of file lp_gpio.h.

GPIO_PIRQ_APIC_MASK

#define GPIO_PIRQ_APIC_MASK   0

Definition at line 83 of file lp_gpio.h.

GPIO_PIRQ_APIC_ROUTE

#define GPIO_PIRQ_APIC_ROUTE   1

Definition at line 84 of file lp_gpio.h.

GPIO_PULL_DOWN

#define GPIO_PULL_DOWN   (1 << 0)

Definition at line 50 of file lp_gpio.h.

GPIO_PULL_NONE

#define GPIO_PULL_NONE   (0 << 0)

Definition at line 49 of file lp_gpio.h.

GPIO_PULL_UP

#define GPIO_PULL_UP   (2 << 0)

Definition at line 51 of file lp_gpio.h.

GPIO_RESET

#define GPIO_RESET

(

set

)

(0x60 + ((set) * 4))

Definition at line 16 of file lp_gpio.h.

GPIO_RESET_PWROK

#define GPIO_RESET_PWROK   0

Definition at line 78 of file lp_gpio.h.

GPIO_RESET_RSMRST

#define GPIO_RESET_RSMRST   1

Definition at line 79 of file lp_gpio.h.

GPIO_ROUTE

#define GPIO_ROUTE

(

set

)

(0x30 + ((set) * 4))

Definition at line 15 of file lp_gpio.h.

GPIO_ROUTE_SCI

#define GPIO_ROUTE_SCI   0

Definition at line 63 of file lp_gpio.h.

GPIO_ROUTE_SMI

#define GPIO_ROUTE_SMI   1

Definition at line 64 of file lp_gpio.h.

GPIO_SENSE_DISABLE

#define GPIO_SENSE_DISABLE   (1 << 2)

Definition at line 54 of file lp_gpio.h.

GPIO_SENSE_ENABLE

#define GPIO_SENSE_ENABLE   (0 << 2)

Definition at line 53 of file lp_gpio.h.

GPIO_SER_BLINK

#define GPIO_SER_BLINK   0x1c

Definition at line 12 of file lp_gpio.h.

GPIO_SER_BLINK_CS

#define GPIO_SER_BLINK_CS   0x20

Definition at line 13 of file lp_gpio.h.

GPIO_SER_BLINK_DATA

#define GPIO_SER_BLINK_DATA   0x24

Definition at line 14 of file lp_gpio.h.

GPO_BLINK

#define GPO_BLINK   1

Definition at line 74 of file lp_gpio.h.

GPO_LEVEL_HIGH

#define GPO_LEVEL_HIGH   (1 << GPO_LEVEL_SHIFT)

Definition at line 45 of file lp_gpio.h.

GPO_LEVEL_LOW

#define GPO_LEVEL_LOW   (0 << GPO_LEVEL_SHIFT)

Definition at line 44 of file lp_gpio.h.

GPO_LEVEL_MASK

#define GPO_LEVEL_MASK   (1 << GPO_LEVEL_SHIFT)

Definition at line 43 of file lp_gpio.h.

GPO_LEVEL_SHIFT

#define GPO_LEVEL_SHIFT   31

Definition at line 42 of file lp_gpio.h.

GPO_NO_BLINK

#define GPO_NO_BLINK   0

Definition at line 73 of file lp_gpio.h.

LP_GPIO_ACPI_SCI

#define LP_GPIO_ACPI_SCI

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_INPUT | GPIO_INVERT, \
          .owner = GPIO_OWNER_ACPI, \
          .route = GPIO_ROUTE_SCI }

Definition at line 97 of file lp_gpio.h.

LP_GPIO_ACPI_SMI

#define LP_GPIO_ACPI_SMI

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_INPUT | GPIO_INVERT, \
          .owner = GPIO_OWNER_ACPI, \
          .route = GPIO_ROUTE_SMI }

Definition at line 102 of file lp_gpio.h.

LP_GPIO_END

#define LP_GPIO_END    { .conf0 = GPIO_LIST_END }

Definition at line 86 of file lp_gpio.h.

LP_GPIO_INPUT

#define LP_GPIO_INPUT

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_INPUT, \
          .owner = GPIO_OWNER_GPIO }

Definition at line 107 of file lp_gpio.h.

LP_GPIO_INPUT_INVERT

#define LP_GPIO_INPUT_INVERT

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_INPUT | GPIO_INVERT, \
          .owner = GPIO_OWNER_GPIO }

Definition at line 111 of file lp_gpio.h.

LP_GPIO_IRQ_EDGE

#define LP_GPIO_IRQ_EDGE

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_INPUT | GPIO_IRQ_EDGE, \
          .owner = GPIO_OWNER_GPIO, \
          .irqen = GPIO_IRQ_ENABLE }

Definition at line 115 of file lp_gpio.h.

LP_GPIO_IRQ_LEVEL

#define LP_GPIO_IRQ_LEVEL

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_INPUT | GPIO_IRQ_LEVEL, \
          .owner = GPIO_OWNER_GPIO, \
          .irqen = GPIO_IRQ_ENABLE }

Definition at line 120 of file lp_gpio.h.

LP_GPIO_NATIVE

#define LP_GPIO_NATIVE    { .conf0 = GPIO_MODE_NATIVE }

Definition at line 89 of file lp_gpio.h.

LP_GPIO_OUT_HIGH

#define LP_GPIO_OUT_HIGH

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_OUTPUT | GPO_LEVEL_HIGH, \
          .owner = GPIO_OWNER_GPIO, \
          .conf1 = GPIO_SENSE_DISABLE }

Definition at line 135 of file lp_gpio.h.

LP_GPIO_OUT_LOW

#define LP_GPIO_OUT_LOW

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_OUTPUT | GPO_LEVEL_LOW, \
          .owner = GPIO_OWNER_GPIO, \
          .conf1 = GPIO_SENSE_DISABLE }

Definition at line 140 of file lp_gpio.h.

LP_GPIO_PIRQ

#define LP_GPIO_PIRQ

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_INPUT, \
          .owner = GPIO_OWNER_GPIO, \
          .pirq  = GPIO_PIRQ_APIC_ROUTE }

Definition at line 125 of file lp_gpio.h.

LP_GPIO_PIRQ_INVERT

#define LP_GPIO_PIRQ_INVERT

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_INPUT | GPIO_INVERT, \
          .owner = GPIO_OWNER_GPIO, \
          .pirq  = GPIO_PIRQ_APIC_ROUTE }

Definition at line 130 of file lp_gpio.h.

LP_GPIO_UNUSED

#define LP_GPIO_UNUSED

Value:

        { .conf0 = GPIO_MODE_GPIO | GPIO_DIR_INPUT, \
          .owner = GPIO_OWNER_GPIO, \
          .conf1 = GPIO_SENSE_DISABLE }

Definition at line 92 of file lp_gpio.h.

MAX_GPIO_NUMBER

#define MAX_GPIO_NUMBER   94 /* zero based */

Definition at line 23 of file lp_gpio.h.

Function Documentation

get_gpio()

int get_gpio

(

int

gpio_num

)

Definition at line 88 of file gpio.c.

References get_gpio_base(), GP_LVL, GP_LVL2, GP_LVL3, GPI_LEVEL, GPIO_CONFIG0, inl(), and MAX_GPIO_NUMBER.

Referenced by get_gpios().

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get_gpios()

unsigned int get_gpios

(

const int *

gpio_num_array

)

Definition at line 107 of file gpio.c.

References get_gpio(), and pch_lp_gpio_map::gpio.

Referenced by dock_present(), locate_spd(), mainboard_get_spd(), and variant_get_spd_index().

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gpio_is_native()

int gpio_is_native

(

int

gpio_num

)

Definition at line 147 of file gpio.c.

References config, get_gpio_base(), GPIO_CONFIG0, GPIO_USE_SEL, GPIO_USE_SEL2, GPIO_USE_SEL3, inl(), and MAX_GPIO_NUMBER.

Referenced by pch_enable_mphy(), and pcie_enable_clock_gating().

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set_gpio()

void set_gpio	(	int	gpio_num,
		int	value
	)

Definition at line 125 of file gpio.c.

References pch_lp_gpio_map::conf0, config, get_gpio_base(), GP_LVL, GP_LVL2, GP_LVL3, GPIO_CONFIG0, GPO_LEVEL_MASK, GPO_LEVEL_SHIFT, inl(), MAX_GPIO_NUMBER, outl(), and value.

Referenced by dock_connect(), dock_disconnect(), early_hybrid_graphics(), mainboard_disable_gpios(), mainboard_post_raminit(), mainboard_smi_sleep(), and mb_post_raminit_setup().

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setup_pch_lp_gpios()

void setup_pch_lp_gpios

(

const struct pch_lp_gpio_map

map[]

)

Definition at line 50 of file lp_gpio.c.

References pch_lp_gpio_map::blink, config, get_gpio_base(), GPIO_BLINK, GPIO_CONFIG0, GPIO_CONFIG1, GPIO_IRQ_IE, GPIO_LIST_END, GPIO_OWNER, GPIO_PIRQ_APIC_EN, GPIO_PIRQ_APIC_ROUTE, GPIO_RESET, GPIO_ROUTE, pch_lp_gpio_map::irqen, lp_gpio_to_pirq(), MAX_GPIO_NUMBER, outl(), pch_lp_gpio_map::owner, reset(), and pch_lp_gpio_map::route.

Referenced by early_pch_init(), and mainboard_romstage_entry().

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Variable Documentation

__packed

struct pch_lp_gpio_map __packed

mainboard_lp_gpio_map

const struct pch_lp_gpio_map mainboard_lp_gpio_map[]

extern

Definition at line 1 of file gpio.c.

Referenced by early_pch_init(), and mainboard_romstage_entry().