xref: /openbmc/u-boot/arch/arm/include/asm/arch-imx8m/lpddr4_define.h (revision 522e035441ca04d99de2fc13b614ad896691e9c9)

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright 2018 NXP
 */

#ifndef __LPDDR4_DEFINE_H_
#define __LPDDR4_DEFINE_H_

#define LPDDR4_DVFS_DBI
#define DDR_ONE_RANK
/* #define LPDDR4_DBI_ON */
#define DFI_BUG_WR
#define M845S_4GBx2
#define PRETRAIN

/* DRAM MR setting */
#ifdef LPDDR4_DBI_ON
#define LPDDR4_MR3			0xf1
#define LPDDR4_PHY_DMIPinPresent	0x1
#else
#define LPDDR4_MR3			0x31
#define LPDDR4_PHY_DMIPinPresent	0x0
#endif

#ifdef DDR_ONE_RANK
#define LPDDR4_CS			0x1
#else
#define LPDDR4_CS			0x3
#endif

/* PHY training feature */
#define LPDDR4_HDT_CTL_2D		0xC8
#define LPDDR4_HDT_CTL_3200_1D		0xC8
#define LPDDR4_HDT_CTL_400_1D		0xC8
#define LPDDR4_HDT_CTL_100_1D		0xC8

/* 400/100 training seq */
#define LPDDR4_TRAIN_SEQ_P2		0x121f
#define LPDDR4_TRAIN_SEQ_P1		0x121f
#define LPDDR4_TRAIN_SEQ_P0		0x121f
#define LPDDR4_TRAIN_SEQ_100		0x121f
#define LPDDR4_TRAIN_SEQ_400		0x121f

/* 2D share & weight */
#define LPDDR4_2D_WEIGHT		0x1f7f
#define LPDDR4_2D_SHARE			1
#define LPDDR4_CATRAIN_3200_1d		0
#define LPDDR4_CATRAIN_400		0
#define LPDDR4_CATRAIN_100		0
#define LPDDR4_CATRAIN_3200_2d		0

/* MRS parameter */
/* for LPDDR4 Rtt */
#define LPDDR4_RTT40			6
#define LPDDR4_RTT48			5
#define LPDDR4_RTT60			4
#define LPDDR4_RTT80			3
#define LPDDR4_RTT120			2
#define LPDDR4_RTT240			1
#define LPDDR4_RTT_DIS			0

/* for LPDDR4 Ron */
#define LPDDR4_RON34			7
#define LPDDR4_RON40			6
#define LPDDR4_RON48			5
#define LPDDR4_RON60			4
#define LPDDR4_RON80			3

#define LPDDR4_PHY_ADDR_RON60		0x1
#define LPDDR4_PHY_ADDR_RON40		0x3
#define LPDDR4_PHY_ADDR_RON30		0x7
#define LPDDR4_PHY_ADDR_RON24		0xf
#define LPDDR4_PHY_ADDR_RON20		0x1f

/* for read channel */
#define LPDDR4_RON			LPDDR4_RON40
#define LPDDR4_PHY_RTT			30
#define LPDDR4_PHY_VREF_VALUE		17

/* for write channel */
#define LPDDR4_PHY_RON			30
#define LPDDR4_PHY_ADDR_RON		LPDDR4_PHY_ADDR_RON40
#define LPDDR4_RTT_DQ			LPDDR4_RTT40
#define LPDDR4_RTT_CA			LPDDR4_RTT40
#define LPDDR4_RTT_CA_BANK0		LPDDR4_RTT40
#define LPDDR4_RTT_CA_BANK1		LPDDR4_RTT40
#define LPDDR4_VREF_VALUE_CA		((1 << 6) | (0xd))
#define LPDDR4_VREF_VALUE_DQ_RANK0	((1 << 6) | (0xd))
#define LPDDR4_VREF_VALUE_DQ_RANK1	((1 << 6) | (0xd))
#define LPDDR4_MR22_RANK0		((0 << 5) | (1 << 4) | (0 << 3) | \
					(LPDDR4_RTT40))
#define LPDDR4_MR22_RANK1		((1 << 5) | (1 << 4) | (1 << 3) | \
					(LPDDR4_RTT40))

#define LPDDR4_MR3_PU_CAL		1

#endif /* __LPDDR4_DEFINE_H__ */