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/*
* Copyright (C) 2013 Atmel Corporation
* Bo Shen <voice.shen@atmel.com>
*
* Copyright (C) 2015 Atmel Corporation
* Wenyou Yang <wenyou.yang@atmel.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ATMEL_MPDDRC_H__
#define __ATMEL_MPDDRC_H__
struct atmel_mpddrc_config {
u32 mr;
u32 rtr;
u32 cr;
u32 tpr0;
u32 tpr1;
u32 tpr2;
u32 md;
};
/*
* Only define the needed register in mpddr
* If other register needed, will add them later
*/
struct atmel_mpddr {
u32 mr; /* 0x00: Mode Register */
u32 rtr; /* 0x04: Refresh Timer Register */
u32 cr; /* 0x08: Configuration Register */
u32 tpr0; /* 0x0c: Timing Parameter 0 Register */
u32 tpr1; /* 0x10: Timing Parameter 1 Register */
u32 tpr2; /* 0x14: Timing Parameter 2 Register */
u32 reserved; /* 0x18: Reserved */
u32 lpr; /* 0x1c: Low-power Register */
u32 md; /* 0x20: Memory Device Register */
u32 reserved1; /* 0x24: Reserved */
u32 lpddr23_lpr; /* 0x28: LPDDR2-LPDDR3 Low-power Register*/
u32 cal_mr4; /* 0x2c: Calibration and MR4 Register */
u32 tim_cal; /* 0x30: Timing Calibration Register */
u32 io_calibr; /* 0x34: IO Calibration */
u32 ocms; /* 0x38: OCMS Register */
u32 ocms_key1; /* 0x3c: OCMS KEY1 Register */
u32 ocms_key2; /* 0x40: OCMS KEY2 Register */
u32 conf_arbiter; /* 0x44: Configuration Arbiter Register */
u32 timeout; /* 0x48: Timeout Port 0/1/2/3 Register */
u32 req_port0123; /* 0x4c: Request Port 0/1/2/3 Register */
u32 req_port4567; /* 0x50: Request Port 4/5/6/7 Register */
u32 bdw_port0123; /* 0x54: Bandwidth Port 0/1/2/3 Register */
u32 bdw_port4567; /* 0x58: Bandwidth Port 4/5/6/7 Register */
u32 rd_data_path; /* 0x5c: Read Datapath Register */
u32 reserved2[33];
u32 wpmr; /* 0xe4: Write Protection Mode Register */
u32 wpsr; /* 0xe8: Write Protection Status Register */
u32 reserved3[4];
u32 version; /* 0xfc: IP version */
};
int ddr2_init(const unsigned int base,
const unsigned int ram_address,
const struct atmel_mpddrc_config *mpddr_value);
int ddr3_init(const unsigned int base,
const unsigned int ram_address,
const struct atmel_mpddrc_config *mpddr_value);
/* Bit field in mode register */
#define ATMEL_MPDDRC_MR_MODE_NORMAL_CMD 0x0
#define ATMEL_MPDDRC_MR_MODE_NOP_CMD 0x1
#define ATMEL_MPDDRC_MR_MODE_PRCGALL_CMD 0x2
#define ATMEL_MPDDRC_MR_MODE_LMR_CMD 0x3
#define ATMEL_MPDDRC_MR_MODE_RFSH_CMD 0x4
#define ATMEL_MPDDRC_MR_MODE_EXT_LMR_CMD 0x5
#define ATMEL_MPDDRC_MR_MODE_DEEP_CMD 0x6
#define ATMEL_MPDDRC_MR_MODE_LPDDR2_CMD 0x7
/* Bit field in configuration register */
#define ATMEL_MPDDRC_CR_NC_MASK 0x3
#define ATMEL_MPDDRC_CR_NC_COL_9 0x0
#define ATMEL_MPDDRC_CR_NC_COL_10 0x1
#define ATMEL_MPDDRC_CR_NC_COL_11 0x2
#define ATMEL_MPDDRC_CR_NC_COL_12 0x3
#define ATMEL_MPDDRC_CR_NR_MASK (0x3 << 2)
#define ATMEL_MPDDRC_CR_NR_ROW_11 (0x0 << 2)
#define ATMEL_MPDDRC_CR_NR_ROW_12 (0x1 << 2)
#define ATMEL_MPDDRC_CR_NR_ROW_13 (0x2 << 2)
#define ATMEL_MPDDRC_CR_NR_ROW_14 (0x3 << 2)
#define ATMEL_MPDDRC_CR_CAS_MASK (0x7 << 4)
#define ATMEL_MPDDRC_CR_CAS_DDR_CAS2 (0x2 << 4)
#define ATMEL_MPDDRC_CR_CAS_DDR_CAS3 (0x3 << 4)
#define ATMEL_MPDDRC_CR_CAS_DDR_CAS4 (0x4 << 4)
#define ATMEL_MPDDRC_CR_CAS_DDR_CAS5 (0x5 << 4)
#define ATMEL_MPDDRC_CR_CAS_DDR_CAS6 (0x6 << 4)
#define ATMEL_MPDDRC_CR_DLL_RESET_ENABLED (0x1 << 7)
#define ATMEL_MPDDRC_CR_DIC_DS (0x1 << 8)
#define ATMEL_MPDDRC_CR_DIS_DLL (0x1 << 9)
#define ATMEL_MPDDRC_CR_OCD_DEFAULT (0x7 << 12)
#define ATMEL_MPDDRC_CR_DQMS_SHARED (0x1 << 16)
#define ATMEL_MPDDRC_CR_ENRDM_ON (0x1 << 17)
#define ATMEL_MPDDRC_CR_NB_8BANKS (0x1 << 20)
#define ATMEL_MPDDRC_CR_NDQS_DISABLED (0x1 << 21)
#define ATMEL_MPDDRC_CR_DECOD_INTERLEAVED (0x1 << 22)
#define ATMEL_MPDDRC_CR_UNAL_SUPPORTED (0x1 << 23)
/* Bit field in timing parameter 0 register */
#define ATMEL_MPDDRC_TPR0_TRAS_OFFSET 0
#define ATMEL_MPDDRC_TPR0_TRAS_MASK 0xf
#define ATMEL_MPDDRC_TPR0_TRCD_OFFSET 4
#define ATMEL_MPDDRC_TPR0_TRCD_MASK 0xf
#define ATMEL_MPDDRC_TPR0_TWR_OFFSET 8
#define ATMEL_MPDDRC_TPR0_TWR_MASK 0xf
#define ATMEL_MPDDRC_TPR0_TRC_OFFSET 12
#define ATMEL_MPDDRC_TPR0_TRC_MASK 0xf
#define ATMEL_MPDDRC_TPR0_TRP_OFFSET 16
#define ATMEL_MPDDRC_TPR0_TRP_MASK 0xf
#define ATMEL_MPDDRC_TPR0_TRRD_OFFSET 20
#define ATMEL_MPDDRC_TPR0_TRRD_MASK 0xf
#define ATMEL_MPDDRC_TPR0_TWTR_OFFSET 24
#define ATMEL_MPDDRC_TPR0_TWTR_MASK 0x7
#define ATMEL_MPDDRC_TPR0_RDC_WRRD_OFFSET 27
#define ATMEL_MPDDRC_TPR0_RDC_WRRD_MASK 0x1
#define ATMEL_MPDDRC_TPR0_TMRD_OFFSET 28
#define ATMEL_MPDDRC_TPR0_TMRD_MASK 0xf
/* Bit field in timing parameter 1 register */
#define ATMEL_MPDDRC_TPR1_TRFC_OFFSET 0
#define ATMEL_MPDDRC_TPR1_TRFC_MASK 0x7f
#define ATMEL_MPDDRC_TPR1_TXSNR_OFFSET 8
#define ATMEL_MPDDRC_TPR1_TXSNR_MASK 0xff
#define ATMEL_MPDDRC_TPR1_TXSRD_OFFSET 16
#define ATMEL_MPDDRC_TPR1_TXSRD_MASK 0xff
#define ATMEL_MPDDRC_TPR1_TXP_OFFSET 24
#define ATMEL_MPDDRC_TPR1_TXP_MASK 0xf
/* Bit field in timing parameter 2 register */
#define ATMEL_MPDDRC_TPR2_TXARD_OFFSET 0
#define ATMEL_MPDDRC_TPR2_TXARD_MASK 0xf
#define ATMEL_MPDDRC_TPR2_TXARDS_OFFSET 4
#define ATMEL_MPDDRC_TPR2_TXARDS_MASK 0xf
#define ATMEL_MPDDRC_TPR2_TRPA_OFFSET 8
#define ATMEL_MPDDRC_TPR2_TRPA_MASK 0xf
#define ATMEL_MPDDRC_TPR2_TRTP_OFFSET 12
#define ATMEL_MPDDRC_TPR2_TRTP_MASK 0x7
#define ATMEL_MPDDRC_TPR2_TFAW_OFFSET 16
#define ATMEL_MPDDRC_TPR2_TFAW_MASK 0xf
/* Bit field in Memory Device Register */
#define ATMEL_MPDDRC_MD_LPDDR_SDRAM 0x3
#define ATMEL_MPDDRC_MD_DDR3_SDRAM 0x4
#define ATMEL_MPDDRC_MD_LPDDR3_SDRAM 0x5
#define ATMEL_MPDDRC_MD_DDR2_SDRAM 0x6
#define ATMEL_MPDDRC_MD_DBW_MASK (0x1 << 4)
#define ATMEL_MPDDRC_MD_DBW_32_BITS (0x0 << 4)
#define ATMEL_MPDDRC_MD_DBW_16_BITS (0x1 << 4)
/* Bit field in I/O Calibration Register */
#define ATMEL_MPDDRC_IO_CALIBR_RDIV 0x7
#define ATMEL_MPDDRC_IO_CALIBR_LPDDR2_RZQ_34_3 0x1
#define ATMEL_MPDDRC_IO_CALIBR_LPDDR2_RZQ_40 0x2
#define ATMEL_MPDDRC_IO_CALIBR_LPDDR2_RZQ_48 0x3
#define ATMEL_MPDDRC_IO_CALIBR_LPDDR2_RZQ_60 0x4
#define ATMEL_MPDDRC_IO_CALIBR_LPDDR2_RZQ_80 0x6
#define ATMEL_MPDDRC_IO_CALIBR_LPDDR2_RZQ_120 0x7
#define ATMEL_MPDDRC_IO_CALIBR_DDR2_RZQ_35 0x2
#define ATMEL_MPDDRC_IO_CALIBR_DDR2_RZQ_43 0x3
#define ATMEL_MPDDRC_IO_CALIBR_DDR2_RZQ_52 0x4
#define ATMEL_MPDDRC_IO_CALIBR_DDR2_RZQ_70 0x6
#define ATMEL_MPDDRC_IO_CALIBR_DDR2_RZQ_105 0x7
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_37 0x2
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_44 0x3
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_55 0x4
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_73 0x6
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_110 0x7
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_37 0x2
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_44 0x3
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_55 0x4
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_73 0x6
#define ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_110 0x7
#define ATMEL_MPDDRC_IO_CALIBR_TZQIO 0x7f
#define ATMEL_MPDDRC_IO_CALIBR_TZQIO_(x) (((x) & 0x7f) << 8)
#define ATMEL_MPDDRC_IO_CALIBR_EN_CALIB (0x1 << 4)
/* Bit field in Read Data Path Register */
#define ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_SAMPLING 0x3
#define ATMEL_MPDDRC_RD_DATA_PATH_NO_SHIFT 0x0
#define ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_ONE_CYCLE 0x1
#define ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_TWO_CYCLE 0x2
#define ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_THREE_CYCLE 0x3
#endif
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