/*
 * Copyright (C) 2016-2017 Rockchip Electronics Co., Ltd
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#ifndef _ASM_ARCH_SDRAM_RK3399_H
#define _ASM_ARCH_SDRAM_RK3399_H

enum {
	DDR3 = 0x3,
	LPDDR2 = 0x5,
	LPDDR3 = 0x6,
	LPDDR4 = 0x7,
	UNUSED = 0xFF
};

struct rk3399_ddr_pctl_regs {
	u32 denali_ctl[332];
};

struct rk3399_ddr_publ_regs {
	u32 denali_phy[959];
};

struct rk3399_ddr_pi_regs {
	u32 denali_pi[200];
};

struct rk3399_msch_regs {
	u32 coreid;
	u32 revisionid;
	u32 ddrconf;
	u32 ddrsize;
	u32 ddrtiminga0;
	u32 ddrtimingb0;
	u32 ddrtimingc0;
	u32 devtodev0;
	u32 reserved0[(0x110 - 0x20) / 4];
	u32 ddrmode;
	u32 reserved1[(0x1000 - 0x114) / 4];
	u32 agingx0;
};

struct rk3399_msch_timings {
	u32 ddrtiminga0;
	u32 ddrtimingb0;
	u32 ddrtimingc0;
	u32 devtodev0;
	u32 ddrmode;
	u32 agingx0;
};

struct rk3399_ddr_cic_regs {
	u32 cic_ctrl0;
	u32 cic_ctrl1;
	u32 cic_idle_th;
	u32 cic_cg_wait_th;
	u32 cic_status0;
	u32 cic_status1;
	u32 cic_ctrl2;
	u32 cic_ctrl3;
	u32 cic_ctrl4;
};

/* DENALI_CTL_00 */
#define START		1

/* DENALI_CTL_68 */
#define PWRUP_SREFRESH_EXIT	(1 << 16)

/* DENALI_CTL_274 */
#define MEM_RST_VALID	1

struct rk3399_sdram_channel {
	unsigned int rank;
	/* dram column number, 0 means this channel is invalid */
	unsigned int col;
	/* dram bank number, 3:8bank, 2:4bank */
	unsigned int bk;
	/* channel buswidth, 2:32bit, 1:16bit, 0:8bit */
	unsigned int bw;
	/* die buswidth, 2:32bit, 1:16bit, 0:8bit */
	unsigned int dbw;
	/*
	 * row_3_4 = 1: 6Gb or 12Gb die
	 * row_3_4 = 0: normal die, power of 2
	 */
	unsigned int row_3_4;
	unsigned int cs0_row;
	unsigned int cs1_row;
	unsigned int ddrconfig;
	struct rk3399_msch_timings noc_timings;
};

struct rk3399_base_params {
	unsigned int ddr_freq;
	unsigned int dramtype;
	unsigned int num_channels;
	unsigned int stride;
	unsigned int odt;
};

struct rk3399_sdram_params {
	struct rk3399_sdram_channel ch[2];
	struct rk3399_base_params base;
	struct rk3399_ddr_pctl_regs pctl_regs;
	struct rk3399_ddr_pi_regs pi_regs;
	struct rk3399_ddr_publ_regs phy_regs;
};

#define PI_CA_TRAINING		(1 << 0)
#define PI_WRITE_LEVELING	(1 << 1)
#define PI_READ_GATE_TRAINING	(1 << 2)
#define PI_READ_LEVELING	(1 << 3)
#define PI_WDQ_LEVELING		(1 << 4)
#define PI_FULL_TRAINING	0xff

#endif