xref: /rk3399_rockchip-uboot/include/rockchip-otp.h (revision cbe246677bef17dbbf829ba451cf45ad70e48350)

/* SPDX-License-Identifier:     GPL-2.0+ */
/*
 * (C) Copyright 2019 Rockchip Electronics Co., Ltd
 */

#ifndef _ROCKCHIP_OTP_H_
#define _ROCKCHIP_OTP_H_

/* OTP Register Offsets */
#define OTPC_SBPI_CTRL			0x0020
#define OTPC_SBPI_CMD_VALID_PRE		0x0024
#define OTPC_SBPI_CS_VALID_PRE		0x0028
#define OTPC_SBPI_STATUS		0x002C
#define OTPC_USER_CTRL			0x0100
#define OTPC_USER_ADDR			0x0104
#define OTPC_USER_ENABLE		0x0108
#define OTPC_USER_QP			0x0120
#define OTPC_USER_Q			0x0124
#define OTPC_INT_STATUS			0x0304
#define OTPC_SBPI_CMD0_OFFSET		0x1000
#define OTPC_SBPI_CMD1_OFFSET		0x1004

/* OTP Register bits and masks */
#define OTPC_USER_ADDR_MASK		GENMASK(31, 16)
#define OTPC_USE_USER			BIT(0)
#define OTPC_USE_USER_MASK		GENMASK(16, 16)
#define OTPC_USER_FSM_ENABLE		BIT(0)
#define OTPC_USER_FSM_ENABLE_MASK	GENMASK(16, 16)
#define OTPC_SBPI_DONE			BIT(1)
#define OTPC_USER_DONE			BIT(2)

#define SBPI_DAP_ADDR			0x02
#define SBPI_DAP_ADDR_SHIFT		8
#define SBPI_DAP_ADDR_MASK		GENMASK(31, 24)
#define SBPI_CMD_VALID_MASK		GENMASK(31, 16)
#define SBPI_DAP_CMD_WRF		0xC0
#define SBPI_DAP_REG_ECC		0x3A
#define SBPI_ECC_ENABLE			0x00
#define SBPI_ECC_DISABLE		0x09
#define SBPI_ENABLE			BIT(0)
#define SBPI_ENABLE_MASK		GENMASK(16, 16)

#define OTPC_TIMEOUT			10000

typedef int (*OTP_READ)(struct udevice *dev, int offset, void *buf, int size);

struct rockchip_otp_platdata {
	void __iomem *base;
	unsigned long secure_conf_base;
	unsigned long otp_mask_base;
};

#endif