/* SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 2007-2018 Solarflare Communications Inc.
 * All rights reserved.
 */

#ifndef	_SYS_SIENA_FLASH_H
#define	_SYS_SIENA_FLASH_H

#pragma pack(1)

/* Fixed locations near the start of flash (which may be in the internal PHY
 * firmware header) point to the boot header.
 *
 * - parsed by MC boot ROM and firmware
 * - reserved (but not parsed) by PHY firmware
 * - opaque to driver
 */

#define	SIENA_MC_BOOT_PHY_FW_HDR_LEN (0x20)

#define	SIENA_MC_BOOT_PTR_LOCATION (0x18)      /* First thing we try to boot */
#define	SIENA_MC_BOOT_ALT_PTR_LOCATION (0x1c)  /* Alternative if that fails */

#define	SIENA_MC_BOOT_HDR_LEN (0x200)

#define	SIENA_MC_BOOT_MAGIC (0x51E4A001)
#define	SIENA_MC_BOOT_VERSION (1)


/*Structures supporting an arbitrary number of binary blobs in the flash image
  intended to house code and tables for the satellite cpus*/
/*thanks to random.org for:*/
#define	BLOBS_HEADER_MAGIC (0xBDA3BBD4)
#define	BLOB_HEADER_MAGIC  (0xA1478A91)

typedef struct blobs_hdr_s {			/* GENERATED BY scripts/genfwdef */
	efx_dword_t	magic;
	efx_dword_t	no_of_blobs;
} blobs_hdr_t;

typedef struct blob_hdr_s {			/* GENERATED BY scripts/genfwdef */
	efx_dword_t	magic;
	efx_dword_t	cpu_type;
	efx_dword_t	build_variant;
	efx_dword_t	offset;
	efx_dword_t	length;
	efx_dword_t	checksum;
} blob_hdr_t;

#define	BLOB_CPU_TYPE_TXDI_TEXT (0)
#define	BLOB_CPU_TYPE_RXDI_TEXT (1)
#define	BLOB_CPU_TYPE_TXDP_TEXT (2)
#define	BLOB_CPU_TYPE_RXDP_TEXT (3)
#define	BLOB_CPU_TYPE_RXHRSL_HR_LUT (4)
#define	BLOB_CPU_TYPE_RXHRSL_HR_LUT_CFG (5)
#define	BLOB_CPU_TYPE_TXHRSL_HR_LUT (6)
#define	BLOB_CPU_TYPE_TXHRSL_HR_LUT_CFG (7)
#define	BLOB_CPU_TYPE_RXHRSL_HR_PGM  (8)
#define	BLOB_CPU_TYPE_RXHRSL_SL_PGM  (9)
#define	BLOB_CPU_TYPE_TXHRSL_HR_PGM  (10)
#define	BLOB_CPU_TYPE_TXHRSL_SL_PGM  (11)
#define	BLOB_CPU_TYPE_RXDI_VTBL0 (12)
#define	BLOB_CPU_TYPE_TXDI_VTBL0 (13)
#define	BLOB_CPU_TYPE_RXDI_VTBL1 (14)
#define	BLOB_CPU_TYPE_TXDI_VTBL1 (15)
#define	BLOB_CPU_TYPE_DUMPSPEC (32)
#define	BLOB_CPU_TYPE_MC_XIP   (33)

#define	BLOB_CPU_TYPE_INVALID (31)

/*
 * The upper four bits of the CPU type field specify the compression
 * algorithm used for this blob.
 */
#define	BLOB_COMPRESSION_MASK (0xf0000000)
#define	BLOB_CPU_TYPE_MASK    (0x0fffffff)

#define	BLOB_COMPRESSION_NONE (0x00000000) /* Stored as is */
#define	BLOB_COMPRESSION_LZ   (0x10000000) /* see lib/lzdecoder.c */

typedef struct siena_mc_boot_hdr_s {		/* GENERATED BY scripts/genfwdef */
	efx_dword_t	magic;			/* = SIENA_MC_BOOT_MAGIC */
	efx_word_t	hdr_version;		/* this structure definition is version 1 */
	efx_byte_t	board_type;
	efx_byte_t	firmware_version_a;
	efx_byte_t	firmware_version_b;
	efx_byte_t	firmware_version_c;
	efx_word_t	checksum;		/* of whole header area + firmware image */
	efx_word_t	firmware_version_d;
	efx_byte_t	mcfw_subtype;
	efx_byte_t	generation;		/* MC (Medford and later): MC partition generation when */
						/* written to NVRAM. */
						/* MUM & SUC images: subtype. */
						/* (Otherwise set to 0) */
	efx_dword_t	firmware_text_offset;	/* offset to firmware .text */
	efx_dword_t	firmware_text_size;	/* length of firmware .text, in bytes */
	efx_dword_t	firmware_data_offset;	/* offset to firmware .data */
	efx_dword_t	firmware_data_size;	/* length of firmware .data, in bytes */
	efx_byte_t	spi_rate;		/* SPI rate for reading image, 0 is BootROM default */
	efx_byte_t	spi_phase_adj;		/* SPI SDO/SCL phase adjustment, 0 is default (no adj) */
	efx_word_t	xpm_sector;		/* XPM (MEDFORD and later): The sector that contains */
						/* the key, or 0xffff if unsigned. (Otherwise set to 0) */
	efx_byte_t	mumfw_subtype;		/* MUM & SUC images: subtype. (Otherwise set to 0) */
	efx_byte_t	reserved_b[3];		/* (set to 0) */
	efx_dword_t	security_level;		/* This number increases every time a serious security flaw */
						/* is fixed. A secure NIC may not downgrade to any image */
						/* with a lower security level than the current image. */
						/* Note: The number in this header should only be used for */
						/* determining the level of new images, not to determine */
						/* the level of the current image as this header is not */
						/* protected by a CMAC. */
	efx_dword_t	reserved_c[5];		/* (set to 0) */
} siena_mc_boot_hdr_t;

#define	SIENA_MC_BOOT_HDR_PADDING \
	(SIENA_MC_BOOT_HDR_LEN - sizeof(siena_mc_boot_hdr_t))

#define	SIENA_MC_STATIC_CONFIG_MAGIC (0xBDCF5555)
#define	SIENA_MC_STATIC_CONFIG_VERSION (0)

typedef struct siena_mc_static_config_hdr_s {	/* GENERATED BY scripts/genfwdef */
	efx_dword_t	magic;			/* = SIENA_MC_STATIC_CONFIG_MAGIC */
	efx_word_t	length;			/* of header area (i.e. not including VPD) */
	efx_byte_t	version;
	efx_byte_t	csum;			/* over header area (i.e. not including VPD) */
	efx_dword_t	static_vpd_offset;
	efx_dword_t	static_vpd_length;
	efx_dword_t	capabilities;
	efx_byte_t	mac_addr_base[6];
	efx_byte_t	green_mode_cal;		/* Green mode calibration result */
	efx_byte_t	green_mode_valid;	/* Whether cal holds a valid value */
	efx_word_t	mac_addr_count;
	efx_word_t	mac_addr_stride;
	efx_word_t	calibrated_vref;	/* Vref as measured during production */
	efx_word_t	adc_vref;		/* Vref as read by ADC */
	efx_dword_t	reserved2[1];		/* (write as zero) */
	efx_dword_t	num_dbi_items;
	struct {
		efx_word_t	addr;
		efx_word_t	byte_enables;
		efx_dword_t	value;
	} dbi[];
} siena_mc_static_config_hdr_t;

/* This prefixes a valid XIP partition */
#define XIP_PARTITION_MAGIC (0x51DEC0DE)

#define	SIENA_MC_DYNAMIC_CONFIG_MAGIC (0xBDCFDDDD)
#define	SIENA_MC_DYNAMIC_CONFIG_VERSION (0)

typedef struct siena_mc_fw_version_s {		/* GENERATED BY scripts/genfwdef */
	efx_dword_t	fw_subtype;
	efx_word_t	version_w;
	efx_word_t	version_x;
	efx_word_t	version_y;
	efx_word_t	version_z;
} siena_mc_fw_version_t;

typedef struct siena_mc_dynamic_config_hdr_s {	/* GENERATED BY scripts/genfwdef */
	efx_dword_t	magic;			/* = SIENA_MC_DYNAMIC_CONFIG_MAGIC */
	efx_word_t	length;			/* of header area (i.e. not including VPD) */
	efx_byte_t	version;
	efx_byte_t	csum;			/* over header area (i.e. not including VPD) */
	efx_dword_t	dynamic_vpd_offset;
	efx_dword_t	dynamic_vpd_length;
	efx_dword_t	num_fw_version_items;
	siena_mc_fw_version_t	fw_version[];
} siena_mc_dynamic_config_hdr_t;

#define	SIENA_MC_EXPROM_SINGLE_MAGIC (0xAA55)  /* little-endian uint16_t */

#define	SIENA_MC_EXPROM_COMBO_MAGIC (0xB0070102)  /* little-endian uint32_t */
#define	SIENA_MC_EXPROM_COMBO_V2_MAGIC (0xB0070103)  /* little-endian uint32_t */

typedef struct siena_mc_combo_rom_hdr_s {	/* GENERATED BY scripts/genfwdef */
	efx_dword_t	magic;			/* = SIENA_MC_EXPROM_COMBO_MAGIC or SIENA_MC_EXPROM_COMBO_V2_MAGIC */
	union		{
		struct {
			efx_dword_t	len1;	/* length of first image */
			efx_dword_t	len2;	/* length of second image */
			efx_dword_t	off1;	/* offset of first byte to edit to combine images */
			efx_dword_t	off2;	/* offset of second byte to edit to combine images */
			efx_word_t	infoblk0_off;/* infoblk offset */
			efx_word_t	infoblk1_off;/* infoblk offset */
			efx_byte_t	infoblk_len;/* length of space reserved for one infoblk structure */
			efx_byte_t	reserved[7];/* (set to 0) */
		} v1;
		struct {
			efx_dword_t	len1;	/* length of first image */
			efx_dword_t	len2;	/* length of second image */
			efx_dword_t	off1;	/* offset of first byte to edit to combine images */
			efx_dword_t	off2;	/* offset of second byte to edit to combine images */
			efx_word_t	infoblk_off;/* infoblk start offset */
			efx_word_t	infoblk_count;/* infoblk count  */
			efx_byte_t	infoblk_len;/* length of space reserved for one infoblk structure */
			efx_byte_t	reserved[7];/* (set to 0) */
		} v2;
	} data;
} siena_mc_combo_rom_hdr_t;

#pragma pack()

#endif	/* _SYS_SIENA_FLASH_H */
