u-boot/board/gateworks/gw_ventana/eeprom.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2013 Gateworks Corporation
 */

#ifndef _VENTANA_EEPROM_
#define _VENTANA_EEPROM_

#define BOARD_EEPROM_BUSNO		0
#define BOARD_EEPROM_ADDR		0x51

struct ventana_board_info {
	u8 mac0[6];          /* 0x00: MAC1 */
	u8 mac1[6];          /* 0x06: MAC2 */
	u8 res0[12];         /* 0x0C: reserved */
	u32 serial;          /* 0x18: Serial Number (read only) */
	u8 res1[4];          /* 0x1C: reserved */
	u8 mfgdate[4];       /* 0x20: MFG date (read only) */
	u8 res2[7];          /* 0x24 */
	/* sdram config */
	u8 sdram_size;       /* 0x2B: (16 << n) MB */
	u8 sdram_speed;      /* 0x2C: (33.333 * n) MHz */
	u8 sdram_width;      /* 0x2D: (8 << n) bit */
	/* cpu config */
	u8 cpu_speed;        /* 0x2E: (33.333 * n) MHz */
	u8 cpu_type;         /* 0x2F: 7=imx6q, 8=imx6dl */
	u8 model[16];        /* 0x30: model string */
	/* FLASH config */
	u8 nand_flash_size;  /* 0x40: (8 << (n-1)) MB */
	u8 spi_flash_size;   /* 0x41: (4 << (n-1)) MB */

	/* Config1: SoC Peripherals */
	u8 config[8];        /* 0x42: loading options */

	u8 res3[4];          /* 0x4A */

	u8 chksum[2];        /* 0x4E */
};

/* config bits */
enum {
	EECONFIG_ETH0,
	EECONFIG_ETH1,
	EECONFIG_HDMI_OUT,
	EECONFIG_SATA,
	EECONFIG_PCIE,
	EECONFIG_SSI0,
	EECONFIG_SSI1,
	EECONFIG_LCD,
	EECONFIG_LVDS0,
	EECONFIG_LVDS1,
	EECONFIG_USB0,
	EECONFIG_USB1,
	EECONFIG_SD0,
	EECONFIG_SD1,
	EECONFIG_SD2,
	EECONFIG_SD3,
	EECONFIG_UART0,
	EECONFIG_UART1,
	EECONFIG_UART2,
	EECONFIG_UART3,
	EECONFIG_UART4,
	EECONFIG_IPU0,
	EECONFIG_IPU1,
	EECONFIG_FLEXCAN,
	EECONFIG_MIPI_DSI,
	EECONFIG_MIPI_CSI,
	EECONFIG_TZASC0,
	EECONFIG_TZASC1,
	EECONFIG_I2C0,
	EECONFIG_I2C1,
	EECONFIG_I2C2,
	EECONFIG_VPU,
	EECONFIG_CSI0,
	EECONFIG_CSI1,
	EECONFIG_CAAM,
	EECONFIG_MEZZ,
	EECONFIG_RES1,
	EECONFIG_RES2,
	EECONFIG_RES3,
	EECONFIG_RES4,
	EECONFIG_ESPCI0,
	EECONFIG_ESPCI1,
	EECONFIG_ESPCI2,
	EECONFIG_ESPCI3,
	EECONFIG_ESPCI4,
	EECONFIG_ESPCI5,
	EECONFIG_RES5,
	EECONFIG_RES6,
	EECONFIG_GPS,
	EECONFIG_SPIFL0,
	EECONFIG_SPIFL1,
	EECONFIG_GSPBATT,
	EECONFIG_HDMI_IN,
	EECONFIG_VID_OUT,
	EECONFIG_VID_IN,
	EECONFIG_NAND,
	EECONFIG_RES8,
	EECONFIG_RES9,
	EECONFIG_RES10,
	EECONFIG_RES11,
	EECONFIG_RES12,
	EECONFIG_RES13,
	EECONFIG_RES14,
	EECONFIG_RES15,
};

enum {
	GW54proto, /* original GW5400-A prototype */
	GW51xx,
	GW52xx,
	GW53xx,
	GW54xx,
	GW551x,
	GW552x,
	GW553x,
	GW560x,
	GW5901,
	GW5902,
	GW5903,
	GW5904,
	GW5905,
	GW5906,
	GW5907,
	GW5908,
	GW5909,
	GW5910,
	GW5912,
	GW5913,
	GW_UNKNOWN,
	GW_BADCRC,
};

/* config items */
struct ventana_eeprom_config {
	const char *name;	/* name of item */
	const char *dtalias;	/* name of dt node to remove if not set */
	int bit;		/* bit within config */
};

extern struct ventana_eeprom_config econfig[];
extern struct ventana_board_info ventana_info;
extern int board_type;

int read_eeprom(struct ventana_board_info *info);

/*
 * I2C transactions to the GSC are done via these functions which
 * perform retries in the case of a busy GSC NAK'ing the transaction
 */
int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len);
int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len);
const char *gsc_get_dtb_name(int level, char *buf, int sz);
struct udevice *i2c_get_dev(int busno, int slave);
const char *eeprom_get_model(void);

#endif