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Add struct atmel_mpddrc_config to accommodate the mpddrc register configurations, not using the mpddrc register map structure, struct atmel_mpddrc, in order to increase readability and reduce run-time memory use. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
128 lines
4.1 KiB
C
128 lines
4.1 KiB
C
/*
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* Copyright (C) 2013 Atmel Corporation
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* Bo Shen <voice.shen@atmel.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __ATMEL_MPDDRC_H__
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#define __ATMEL_MPDDRC_H__
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struct atmel_mpddrc_config {
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u32 mr;
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u32 rtr;
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u32 cr;
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u32 tpr0;
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u32 tpr1;
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u32 tpr2;
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u32 md;
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};
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/*
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* Only define the needed register in mpddr
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* If other register needed, will add them later
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*/
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struct atmel_mpddr {
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u32 mr;
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u32 rtr;
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u32 cr;
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u32 tpr0;
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u32 tpr1;
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u32 tpr2;
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u32 reserved[2];
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u32 md;
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};
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int ddr2_init(const unsigned int base,
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const unsigned int ram_address,
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const struct atmel_mpddrc_config *mpddr_value);
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/* Bit field in mode register */
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#define ATMEL_MPDDRC_MR_MODE_NORMAL_CMD 0x0
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#define ATMEL_MPDDRC_MR_MODE_NOP_CMD 0x1
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#define ATMEL_MPDDRC_MR_MODE_PRCGALL_CMD 0x2
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#define ATMEL_MPDDRC_MR_MODE_LMR_CMD 0x3
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#define ATMEL_MPDDRC_MR_MODE_RFSH_CMD 0x4
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#define ATMEL_MPDDRC_MR_MODE_EXT_LMR_CMD 0x5
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#define ATMEL_MPDDRC_MR_MODE_DEEP_CMD 0x6
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#define ATMEL_MPDDRC_MR_MODE_LPDDR2_CMD 0x7
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/* Bit field in configuration register */
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#define ATMEL_MPDDRC_CR_NC_MASK 0x3
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#define ATMEL_MPDDRC_CR_NC_COL_9 0x0
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#define ATMEL_MPDDRC_CR_NC_COL_10 0x1
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#define ATMEL_MPDDRC_CR_NC_COL_11 0x2
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#define ATMEL_MPDDRC_CR_NC_COL_12 0x3
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#define ATMEL_MPDDRC_CR_NR_MASK (0x3 << 2)
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#define ATMEL_MPDDRC_CR_NR_ROW_11 (0x0 << 2)
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#define ATMEL_MPDDRC_CR_NR_ROW_12 (0x1 << 2)
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#define ATMEL_MPDDRC_CR_NR_ROW_13 (0x2 << 2)
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#define ATMEL_MPDDRC_CR_NR_ROW_14 (0x3 << 2)
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#define ATMEL_MPDDRC_CR_CAS_MASK (0x7 << 4)
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#define ATMEL_MPDDRC_CR_CAS_DDR_CAS2 (0x2 << 4)
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#define ATMEL_MPDDRC_CR_CAS_DDR_CAS3 (0x3 << 4)
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#define ATMEL_MPDDRC_CR_CAS_DDR_CAS4 (0x4 << 4)
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#define ATMEL_MPDDRC_CR_CAS_DDR_CAS5 (0x5 << 4)
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#define ATMEL_MPDDRC_CR_CAS_DDR_CAS6 (0x6 << 4)
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#define ATMEL_MPDDRC_CR_DLL_RESET_ENABLED (0x1 << 7)
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#define ATMEL_MPDDRC_CR_DIC_DS (0x1 << 8)
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#define ATMEL_MPDDRC_CR_DIS_DLL (0x1 << 9)
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#define ATMEL_MPDDRC_CR_OCD_DEFAULT (0x7 << 12)
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#define ATMEL_MPDDRC_CR_DQMS_SHARED (0x1 << 16)
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#define ATMEL_MPDDRC_CR_ENRDM_ON (0x1 << 17)
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#define ATMEL_MPDDRC_CR_NB_8BANKS (0x1 << 20)
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#define ATMEL_MPDDRC_CR_NDQS_DISABLED (0x1 << 21)
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#define ATMEL_MPDDRC_CR_DECOD_INTERLEAVED (0x1 << 22)
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#define ATMEL_MPDDRC_CR_UNAL_SUPPORTED (0x1 << 23)
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/* Bit field in timing parameter 0 register */
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#define ATMEL_MPDDRC_TPR0_TRAS_OFFSET 0
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#define ATMEL_MPDDRC_TPR0_TRAS_MASK 0xf
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#define ATMEL_MPDDRC_TPR0_TRCD_OFFSET 4
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#define ATMEL_MPDDRC_TPR0_TRCD_MASK 0xf
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#define ATMEL_MPDDRC_TPR0_TWR_OFFSET 8
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#define ATMEL_MPDDRC_TPR0_TWR_MASK 0xf
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#define ATMEL_MPDDRC_TPR0_TRC_OFFSET 12
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#define ATMEL_MPDDRC_TPR0_TRC_MASK 0xf
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#define ATMEL_MPDDRC_TPR0_TRP_OFFSET 16
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#define ATMEL_MPDDRC_TPR0_TRP_MASK 0xf
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#define ATMEL_MPDDRC_TPR0_TRRD_OFFSET 20
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#define ATMEL_MPDDRC_TPR0_TRRD_MASK 0xf
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#define ATMEL_MPDDRC_TPR0_TWTR_OFFSET 24
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#define ATMEL_MPDDRC_TPR0_TWTR_MASK 0x7
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#define ATMEL_MPDDRC_TPR0_RDC_WRRD_OFFSET 27
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#define ATMEL_MPDDRC_TPR0_RDC_WRRD_MASK 0x1
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#define ATMEL_MPDDRC_TPR0_TMRD_OFFSET 28
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#define ATMEL_MPDDRC_TPR0_TMRD_MASK 0xf
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/* Bit field in timing parameter 1 register */
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#define ATMEL_MPDDRC_TPR1_TRFC_OFFSET 0
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#define ATMEL_MPDDRC_TPR1_TRFC_MASK 0x7f
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#define ATMEL_MPDDRC_TPR1_TXSNR_OFFSET 8
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#define ATMEL_MPDDRC_TPR1_TXSNR_MASK 0xff
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#define ATMEL_MPDDRC_TPR1_TXSRD_OFFSET 16
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#define ATMEL_MPDDRC_TPR1_TXSRD_MASK 0xff
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#define ATMEL_MPDDRC_TPR1_TXP_OFFSET 24
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#define ATMEL_MPDDRC_TPR1_TXP_MASK 0xf
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/* Bit field in timing parameter 2 register */
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#define ATMEL_MPDDRC_TPR2_TXARD_OFFSET 0
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#define ATMEL_MPDDRC_TPR2_TXARD_MASK 0xf
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#define ATMEL_MPDDRC_TPR2_TXARDS_OFFSET 4
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#define ATMEL_MPDDRC_TPR2_TXARDS_MASK 0xf
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#define ATMEL_MPDDRC_TPR2_TRPA_OFFSET 8
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#define ATMEL_MPDDRC_TPR2_TRPA_MASK 0xf
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#define ATMEL_MPDDRC_TPR2_TRTP_OFFSET 12
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#define ATMEL_MPDDRC_TPR2_TRTP_MASK 0x7
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#define ATMEL_MPDDRC_TPR2_TFAW_OFFSET 16
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#define ATMEL_MPDDRC_TPR2_TFAW_MASK 0xf
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/* Bit field in Memory Device Register */
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#define ATMEL_MPDDRC_MD_LPDDR_SDRAM 0x3
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#define ATMEL_MPDDRC_MD_DDR2_SDRAM 0x6
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#define ATMEL_MPDDRC_MD_DBW_MASK (0x1 << 4)
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#define ATMEL_MPDDRC_MD_DBW_32_BITS (0x0 << 4)
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#define ATMEL_MPDDRC_MD_DBW_16_BITS (0x1 << 4)
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#endif
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