/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Intel PCH/PCU SPI flash driver.
 *
 * Copyright (C) 2016, Intel Corporation
 * Author: Mika Westerberg <mika.westerberg@linux.intel.com>
 */

#ifndef INTEL_SPI_PDATA_H
#define INTEL_SPI_PDATA_H

#include <linux/types.h>

enum intel_spi_type {
	INTEL_SPI_BYT = 1,
	INTEL_SPI_LPT,
	INTEL_SPI_BXT,
	INTEL_SPI_CNL,
};

/**
 * struct intel_spi_boardinfo - Board specific data for Intel SPI driver
 * @type: Type which this controller is compatible with
 * @set_writeable: Try to make the chip writeable (optional)
 * @readonly: The chip is read-only
 * @data: Data to be passed to @set_writeable can be %NULL
 */
struct intel_spi_boardinfo {
	enum intel_spi_type type;
	bool (*set_writeable)(void __iomem *base, void *data);
	bool readonly;
	void *data;
};

#define PLATFORM_MTD		"Platform Data"

#define FDR_MAGIC		0x0FF0A55Au
#define FDR_MAGIC_OFF		0x10u
#define FDR_SECTIONS_OFF	0x40u
#define FDR_SECTIONS_NUM	5u
#define FDR_SECTION_DESC	0u
#define FDR_SECTION_BIOS	1u
#define FDR_SECTION_ME		2u
#define FDR_SECTION_GBE		3u
#define FDR_SECTION_PDR		4u

// PDR Image Directory Entry in the first page of PDR
struct pdr_image_dir {
	__le32 id;
	__le32 offset;
	__le32 size;
	__le32 reserved;
} __packed;

#define PDR_IMAGE_DIR_SIZE	0x1000u
#define PDR_IMAGE_DIR_MAX_CNT	(PDR_IMAGE_DIR_SIZE / sizeof(struct pdr_image_dir))
#define PDR_IMAGE_ID_IMG_DIR	0x1d000000u
#define PDR_IMAGE_ID_AID0	0x0000A1D0u
#define PDR_IMAGE_ID_AID1	0x0000A1D1u
#define PDR_IMAGE_ID_OEMD0	0x00000ED0u
#define PDR_IMAGE_ID_END	0xFFFFFFFFu

#endif /* INTEL_SPI_PDATA_H */