projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 43620a17 KS |
1 | /* |
| 2 | * Kontron PLD driver definitions | |
| 3 | * | |
| 4 | * Copyright (c) 2010-2012 Kontron Europe GmbH | |
| 5 | * Author: Michael Brunner <michael.brunner@kontron.com> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License 2 as published | |
| 9 | * by the Free Software Foundation. | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef _LINUX_MFD_KEMPLD_H_ | |
| 13 | #define _LINUX_MFD_KEMPLD_H_ | |
| 14 | ||
| 15 | /* kempld register definitions */ | |
| 16 | #define KEMPLD_IOINDEX 0xa80 | |
| 17 | #define KEMPLD_IODATA 0xa81 | |
| 18 | #define KEMPLD_MUTEX_KEY 0x80 | |
| 19 | #define KEMPLD_VERSION 0x00 | |
| 20 | #define KEMPLD_VERSION_LSB 0x00 | |
| 21 | #define KEMPLD_VERSION_MSB 0x01 | |
| 22 | #define KEMPLD_VERSION_GET_MINOR(x) (x & 0x1f) | |
| 23 | #define KEMPLD_VERSION_GET_MAJOR(x) ((x >> 5) & 0x1f) | |
| 24 | #define KEMPLD_VERSION_GET_NUMBER(x) ((x >> 10) & 0xf) | |
| 25 | #define KEMPLD_VERSION_GET_TYPE(x) ((x >> 14) & 0x3) | |
| 26 | #define KEMPLD_BUILDNR 0x02 | |
| 27 | #define KEMPLD_BUILDNR_LSB 0x02 | |
| 28 | #define KEMPLD_BUILDNR_MSB 0x03 | |
| 29 | #define KEMPLD_FEATURE 0x04 | |
| 30 | #define KEMPLD_FEATURE_LSB 0x04 | |
| 31 | #define KEMPLD_FEATURE_MSB 0x05 | |
| 32 | #define KEMPLD_FEATURE_BIT_I2C (1 << 0) | |
| 33 | #define KEMPLD_FEATURE_BIT_WATCHDOG (1 << 1) | |
| 34 | #define KEMPLD_FEATURE_BIT_GPIO (1 << 2) | |
| 35 | #define KEMPLD_FEATURE_MASK_UART (7 << 3) | |
| 36 | #define KEMPLD_FEATURE_BIT_NMI (1 << 8) | |
| 37 | #define KEMPLD_FEATURE_BIT_SMI (1 << 9) | |
| 38 | #define KEMPLD_FEATURE_BIT_SCI (1 << 10) | |
| 39 | #define KEMPLD_SPEC 0x06 | |
| 40 | #define KEMPLD_SPEC_GET_MINOR(x) (x & 0x0f) | |
| 41 | #define KEMPLD_SPEC_GET_MAJOR(x) ((x >> 4) & 0x0f) | |
| 42 | #define KEMPLD_IRQ_GPIO 0x35 | |
| 43 | #define KEMPLD_IRQ_I2C 0x36 | |
| 44 | #define KEMPLD_CFG 0x37 | |
| 45 | #define KEMPLD_CFG_GPIO_I2C_MUX (1 << 0) | |
| 46 | #define KEMPLD_CFG_BIOS_WP (1 << 7) | |
| 47 | ||
| 48 | #define KEMPLD_CLK 33333333 | |
| 49 | ||
| 50 | #define KEMPLD_TYPE_RELEASE 0x0 | |
| 51 | #define KEMPLD_TYPE_DEBUG 0x1 | |
| 52 | #define KEMPLD_TYPE_CUSTOM 0x2 | |
| 53 | ||
| 58a9e5b9 MB |
54 | #define KEMPLD_VERSION_LEN 10 |
| 55 | ||
| 43620a17 KS |
56 | /** |
| 57 | * struct kempld_info - PLD device information structure | |
| 58 | * @major: PLD major revision | |
| 59 | * @minor: PLD minor revision | |
| 60 | * @buildnr: PLD build number | |
| 61 | * @number: PLD board specific index | |
| 62 | * @type: PLD type | |
| 63 | * @spec_major: PLD FW specification major revision | |
| 64 | * @spec_minor: PLD FW specification minor revision | |
| 58a9e5b9 | 65 | * @version: PLD version string |
| 43620a17 KS |
66 | */ |
| 67 | struct kempld_info { | |
| 68 | unsigned int major; | |
| 69 | unsigned int minor; | |
| 70 | unsigned int buildnr; | |
| 71 | unsigned int number; | |
| 72 | unsigned int type; | |
| 73 | unsigned int spec_major; | |
| 74 | unsigned int spec_minor; | |
| 58a9e5b9 | 75 | char version[KEMPLD_VERSION_LEN]; |
| 43620a17 KS |
76 | }; |
| 77 | ||
| 78 | /** | |
| 79 | * struct kempld_device_data - Internal representation of the PLD device | |
| 80 | * @io_base: Pointer to the IO memory | |
| 81 | * @io_index: Pointer to the IO index register | |
| 82 | * @io_data: Pointer to the IO data register | |
| 83 | * @pld_clock: PLD clock frequency | |
| 84 | * @feature_mask: PLD feature mask | |
| 85 | * @dev: Pointer to kernel device structure | |
| 86 | * @info: KEMPLD info structure | |
| 87 | * @lock: PLD mutex | |
| 88 | */ | |
| 89 | struct kempld_device_data { | |
| 90 | void __iomem *io_base; | |
| 91 | void __iomem *io_index; | |
| 92 | void __iomem *io_data; | |
| 93 | u32 pld_clock; | |
| 94 | u32 feature_mask; | |
| 95 | struct device *dev; | |
| 96 | struct kempld_info info; | |
| 97 | struct mutex lock; | |
| 98 | }; | |
| 99 | ||
| 100 | /** | |
| 101 | * struct kempld_platform_data - PLD hardware configuration structure | |
| 102 | * @pld_clock: PLD clock frequency | |
| 103 | * @gpio_base GPIO base pin number | |
| 104 | * @ioresource: IO addresses of the PLD | |
| 105 | * @get_mutex: PLD specific get_mutex callback | |
| 106 | * @release_mutex: PLD specific release_mutex callback | |
| 107 | * @get_info: PLD specific get_info callback | |
| 108 | * @register_cells: PLD specific register_cells callback | |
| 109 | */ | |
| 110 | struct kempld_platform_data { | |
| 111 | u32 pld_clock; | |
| 112 | int gpio_base; | |
| 113 | struct resource *ioresource; | |
| 114 | void (*get_hardware_mutex) (struct kempld_device_data *); | |
| 115 | void (*release_hardware_mutex) (struct kempld_device_data *); | |
| 116 | int (*get_info) (struct kempld_device_data *); | |
| 117 | int (*register_cells) (struct kempld_device_data *); | |
| 118 | }; | |
| 119 | ||
| 120 | extern void kempld_get_mutex(struct kempld_device_data *pld); | |
| 121 | extern void kempld_release_mutex(struct kempld_device_data *pld); | |
| 122 | extern u8 kempld_read8(struct kempld_device_data *pld, u8 index); | |
| 123 | extern void kempld_write8(struct kempld_device_data *pld, u8 index, u8 data); | |
| 124 | extern u16 kempld_read16(struct kempld_device_data *pld, u8 index); | |
| 125 | extern void kempld_write16(struct kempld_device_data *pld, u8 index, u16 data); | |
| 126 | extern u32 kempld_read32(struct kempld_device_data *pld, u8 index); | |
| 127 | extern void kempld_write32(struct kempld_device_data *pld, u8 index, u32 data); | |
| 128 | ||
| 129 | #endif /* _LINUX_MFD_KEMPLD_H_ */ |