| /* |
| * 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_ */ |
