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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* UP Board CPLD/FPGA driver
*
* Copyright (c) AAEON. All rights reserved.
* Copyright (C) 2024 Bootlin
*
* Author: Gary Wang <garywang@aaeon.com.tw>
* Author: Thomas Richard <thomas.richard@bootlin.com>
*
*/
#ifndef __LINUX_MFD_UPBOARD_FPGA_H
#define __LINUX_MFD_UPBOARD_FPGA_H
#define UPBOARD_REGISTER_SIZE 16
enum upboard_fpgareg {
UPBOARD_REG_PLATFORM_ID = 0x10,
UPBOARD_REG_FIRMWARE_ID = 0x11,
UPBOARD_REG_FUNC_EN0 = 0x20,
UPBOARD_REG_FUNC_EN1 = 0x21,
UPBOARD_REG_GPIO_EN0 = 0x30,
UPBOARD_REG_GPIO_EN1 = 0x31,
UPBOARD_REG_GPIO_EN2 = 0x32,
UPBOARD_REG_GPIO_DIR0 = 0x40,
UPBOARD_REG_GPIO_DIR1 = 0x41,
UPBOARD_REG_GPIO_DIR2 = 0x42,
UPBOARD_REG_MAX,
};
enum upboard_fpga_type {
UPBOARD_UP_FPGA,
UPBOARD_UP2_FPGA,
};
struct upboard_fpga_data {
enum upboard_fpga_type type;
const struct regmap_config *regmap_config;
};
struct upboard_fpga {
struct device *dev;
struct regmap *regmap;
struct gpio_desc *enable_gpio;
struct gpio_desc *reset_gpio;
struct gpio_desc *clear_gpio;
struct gpio_desc *strobe_gpio;
struct gpio_desc *datain_gpio;
struct gpio_desc *dataout_gpio;
unsigned int firmware_version;
const struct upboard_fpga_data *fpga_data;
};
#endif /* __LINUX_MFD_UPBOARD_FPGA_H */
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