130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
|
/*
|
||
|
|
* Kontron PLD driver definitions
|
||
|
|
*
|
||
|
|
* Copyright (c) 2010-2012 Kontron Europe GmbH
|
||
|
|
* Author: Michael Brunner <michael.brunner@kontron.com>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License 2 as published
|
||
|
|
* by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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_ */
|