| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright (C) 2013 Atmel Corporation |
| * Bo Shen <voice.shen@atmel.com> |
| * |
| * Copyright (C) 2015 Atmel Corporation |
| * Wenyou Yang <wenyou.yang@atmel.com> |
| */ |
| |
| #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_ZQ_INIT (0x0 << 10) |
| #define ATMEL_MPDDRC_CR_ZQ_LONG (0x1 << 10) |
| #define ATMEL_MPDDRC_CR_ZQ_SHORT (0x2 << 10) |
| #define ATMEL_MPDDRC_CR_ZQ_RESET (0x3 << 10) |
| #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_SDR_SDRAM 0x0 |
| #define ATMEL_MPDDRC_MD_LP_SDR_SDRAM 0x1 |
| #define ATMEL_MPDDRC_MD_DDR_SDRAM 0x2 |
| #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 << 8) |
| #define ATMEL_MPDDRC_IO_CALIBR_TZQIO_(x) (((x) & 0x7f) << 8) |
| |
| #define ATMEL_MPDDRC_IO_CALIBR_CALCODEP (0xf << 16) |
| #define ATMEL_MPDDRC_IO_CALIBR_CALCODEP_(x) (((x) & 0xf) << 16) |
| #define ATMEL_MPDDRC_IO_CALIBR_CALCODEN (0xf << 20) |
| #define ATMEL_MPDDRC_IO_CALIBR_CALCODEN_(x) (((x) & 0xf) << 20) |
| |
| #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 |
