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usr
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lib
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modules
/
6.8.0-83-generic
/
build
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include
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linux
/
mfd
/ [
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]
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kempld.h
/* SPDX-License-Identifier: GPL-2.0-only */ /* * Kontron PLD driver definitions * * Copyright (c) 2010-2012 Kontron Europe GmbH * Author: Michael Brunner <michael.brunner@kontron.com> */ #ifndef _LINUX_MFD_KEMPLD_H_ #define _LINUX_MFD_KEMPLD_H_ /* kempld register definitions */ #define KEMPLD_IOINDEX 0xa80 #define KEMPLD_IODATA 0xa81 #define KEMPLD_MUTEX_KEY 0x80 #define KEMPLD_VERSION 0x00 #define KEMPLD_VERSION_LSB 0x00 #define KEMPLD_VERSION_MSB 0x01 #define KEMPLD_VERSION_GET_MINOR(x) (x & 0x1f) #define KEMPLD_VERSION_GET_MAJOR(x) ((x >> 5) & 0x1f) #define KEMPLD_VERSION_GET_NUMBER(x) ((x >> 10) & 0xf) #define KEMPLD_VERSION_GET_TYPE(x) ((x >> 14) & 0x3) #define KEMPLD_BUILDNR 0x02 #define KEMPLD_BUILDNR_LSB 0x02 #define KEMPLD_BUILDNR_MSB 0x03 #define KEMPLD_FEATURE 0x04 #define KEMPLD_FEATURE_LSB 0x04 #define KEMPLD_FEATURE_MSB 0x05 #define KEMPLD_FEATURE_BIT_I2C (1 << 0) #define KEMPLD_FEATURE_BIT_WATCHDOG (1 << 1) #define KEMPLD_FEATURE_BIT_GPIO (1 << 2) #define KEMPLD_FEATURE_MASK_UART (7 << 3) #define KEMPLD_FEATURE_BIT_NMI (1 << 8) #define KEMPLD_FEATURE_BIT_SMI (1 << 9) #define KEMPLD_FEATURE_BIT_SCI (1 << 10) #define KEMPLD_SPEC 0x06 #define KEMPLD_SPEC_GET_MINOR(x) (x & 0x0f) #define KEMPLD_SPEC_GET_MAJOR(x) ((x >> 4) & 0x0f) #define KEMPLD_IRQ_GPIO 0x35 #define KEMPLD_IRQ_I2C 0x36 #define KEMPLD_CFG 0x37 #define KEMPLD_CFG_GPIO_I2C_MUX (1 << 0) #define KEMPLD_CFG_BIOS_WP (1 << 7) #define KEMPLD_CLK 33333333 #define KEMPLD_TYPE_RELEASE 0x0 #define KEMPLD_TYPE_DEBUG 0x1 #define KEMPLD_TYPE_CUSTOM 0x2 #define KEMPLD_VERSION_LEN 10 /** * struct kempld_info - PLD device information structure * @major: PLD major revision * @minor: PLD minor revision * @buildnr: PLD build number * @number: PLD board specific index * @type: PLD type * @spec_major: PLD FW specification major revision * @spec_minor: PLD FW specification minor revision * @version: PLD version string */ struct kempld_info { unsigned int major; unsigned int minor; unsigned int buildnr; unsigned int number; unsigned int type; unsigned int spec_major; unsigned int spec_minor; char version[KEMPLD_VERSION_LEN]; }; /** * struct kempld_device_data - Internal representation of the PLD device * @io_base: Pointer to the IO memory * @io_index: Pointer to the IO index register * @io_data: Pointer to the IO data register * @pld_clock: PLD clock frequency * @feature_mask: PLD feature mask * @dev: Pointer to kernel device structure * @info: KEMPLD info structure * @lock: PLD mutex */ struct kempld_device_data { void __iomem *io_base; void __iomem *io_index; void __iomem *io_data; u32 pld_clock; u32 feature_mask; struct device *dev; struct kempld_info info; struct mutex lock; }; /** * struct kempld_platform_data - PLD hardware configuration structure * @pld_clock: PLD clock frequency * @gpio_base GPIO base pin number * @ioresource: IO addresses of the PLD * @get_mutex: PLD specific get_mutex callback * @release_mutex: PLD specific release_mutex callback * @get_info: PLD specific get_info callback * @register_cells: PLD specific register_cells callback */ struct kempld_platform_data { u32 pld_clock; int gpio_base; struct resource *ioresource; void (*get_hardware_mutex) (struct kempld_device_data *); void (*release_hardware_mutex) (struct kempld_device_data *); int (*get_info) (struct kempld_device_data *); int (*register_cells) (struct kempld_device_data *); }; extern void kempld_get_mutex(struct kempld_device_data *pld); extern void kempld_release_mutex(struct kempld_device_data *pld); extern u8 kempld_read8(struct kempld_device_data *pld, u8 index); extern void kempld_write8(struct kempld_device_data *pld, u8 index, u8 data); extern u16 kempld_read16(struct kempld_device_data *pld, u8 index); extern void kempld_write16(struct kempld_device_data *pld, u8 index, u16 data); extern u32 kempld_read32(struct kempld_device_data *pld, u8 index); extern void kempld_write32(struct kempld_device_data *pld, u8 index, u32 data); #endif /* _LINUX_MFD_KEMPLD_H_ */
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