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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128/* 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_GPIO_MASK 0x0f#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_hardware_mutex: PLD specific get_mutex callback * @release_hardware_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_ */