2 * Copyright (C) 2013 Atmel Corporation
3 * Bo Shen <voice.shen@atmel.com>
5 * SPDX-License-Identifier: GPL-2.0+
8 #ifndef __ATMEL_MPDDRC_H__
9 #define __ATMEL_MPDDRC_H__
11 struct atmel_mpddrc_config {
22 * Only define the needed register in mpddr
23 * If other register needed, will add them later
37 int ddr2_init(const unsigned int base,
38 const unsigned int ram_address,
39 const struct atmel_mpddrc_config *mpddr_value);
41 /* Bit field in mode register */
42 #define ATMEL_MPDDRC_MR_MODE_NORMAL_CMD 0x0
43 #define ATMEL_MPDDRC_MR_MODE_NOP_CMD 0x1
44 #define ATMEL_MPDDRC_MR_MODE_PRCGALL_CMD 0x2
45 #define ATMEL_MPDDRC_MR_MODE_LMR_CMD 0x3
46 #define ATMEL_MPDDRC_MR_MODE_RFSH_CMD 0x4
47 #define ATMEL_MPDDRC_MR_MODE_EXT_LMR_CMD 0x5
48 #define ATMEL_MPDDRC_MR_MODE_DEEP_CMD 0x6
49 #define ATMEL_MPDDRC_MR_MODE_LPDDR2_CMD 0x7
51 /* Bit field in configuration register */
52 #define ATMEL_MPDDRC_CR_NC_MASK 0x3
53 #define ATMEL_MPDDRC_CR_NC_COL_9 0x0
54 #define ATMEL_MPDDRC_CR_NC_COL_10 0x1
55 #define ATMEL_MPDDRC_CR_NC_COL_11 0x2
56 #define ATMEL_MPDDRC_CR_NC_COL_12 0x3
57 #define ATMEL_MPDDRC_CR_NR_MASK (0x3 << 2)
58 #define ATMEL_MPDDRC_CR_NR_ROW_11 (0x0 << 2)
59 #define ATMEL_MPDDRC_CR_NR_ROW_12 (0x1 << 2)
60 #define ATMEL_MPDDRC_CR_NR_ROW_13 (0x2 << 2)
61 #define ATMEL_MPDDRC_CR_NR_ROW_14 (0x3 << 2)
62 #define ATMEL_MPDDRC_CR_CAS_MASK (0x7 << 4)
63 #define ATMEL_MPDDRC_CR_CAS_DDR_CAS2 (0x2 << 4)
64 #define ATMEL_MPDDRC_CR_CAS_DDR_CAS3 (0x3 << 4)
65 #define ATMEL_MPDDRC_CR_CAS_DDR_CAS4 (0x4 << 4)
66 #define ATMEL_MPDDRC_CR_CAS_DDR_CAS5 (0x5 << 4)
67 #define ATMEL_MPDDRC_CR_CAS_DDR_CAS6 (0x6 << 4)
68 #define ATMEL_MPDDRC_CR_DLL_RESET_ENABLED (0x1 << 7)
69 #define ATMEL_MPDDRC_CR_DIC_DS (0x1 << 8)
70 #define ATMEL_MPDDRC_CR_DIS_DLL (0x1 << 9)
71 #define ATMEL_MPDDRC_CR_OCD_DEFAULT (0x7 << 12)
72 #define ATMEL_MPDDRC_CR_DQMS_SHARED (0x1 << 16)
73 #define ATMEL_MPDDRC_CR_ENRDM_ON (0x1 << 17)
74 #define ATMEL_MPDDRC_CR_NB_8BANKS (0x1 << 20)
75 #define ATMEL_MPDDRC_CR_NDQS_DISABLED (0x1 << 21)
76 #define ATMEL_MPDDRC_CR_DECOD_INTERLEAVED (0x1 << 22)
77 #define ATMEL_MPDDRC_CR_UNAL_SUPPORTED (0x1 << 23)
79 /* Bit field in timing parameter 0 register */
80 #define ATMEL_MPDDRC_TPR0_TRAS_OFFSET 0
81 #define ATMEL_MPDDRC_TPR0_TRAS_MASK 0xf
82 #define ATMEL_MPDDRC_TPR0_TRCD_OFFSET 4
83 #define ATMEL_MPDDRC_TPR0_TRCD_MASK 0xf
84 #define ATMEL_MPDDRC_TPR0_TWR_OFFSET 8
85 #define ATMEL_MPDDRC_TPR0_TWR_MASK 0xf
86 #define ATMEL_MPDDRC_TPR0_TRC_OFFSET 12
87 #define ATMEL_MPDDRC_TPR0_TRC_MASK 0xf
88 #define ATMEL_MPDDRC_TPR0_TRP_OFFSET 16
89 #define ATMEL_MPDDRC_TPR0_TRP_MASK 0xf
90 #define ATMEL_MPDDRC_TPR0_TRRD_OFFSET 20
91 #define ATMEL_MPDDRC_TPR0_TRRD_MASK 0xf
92 #define ATMEL_MPDDRC_TPR0_TWTR_OFFSET 24
93 #define ATMEL_MPDDRC_TPR0_TWTR_MASK 0x7
94 #define ATMEL_MPDDRC_TPR0_RDC_WRRD_OFFSET 27
95 #define ATMEL_MPDDRC_TPR0_RDC_WRRD_MASK 0x1
96 #define ATMEL_MPDDRC_TPR0_TMRD_OFFSET 28
97 #define ATMEL_MPDDRC_TPR0_TMRD_MASK 0xf
99 /* Bit field in timing parameter 1 register */
100 #define ATMEL_MPDDRC_TPR1_TRFC_OFFSET 0
101 #define ATMEL_MPDDRC_TPR1_TRFC_MASK 0x7f
102 #define ATMEL_MPDDRC_TPR1_TXSNR_OFFSET 8
103 #define ATMEL_MPDDRC_TPR1_TXSNR_MASK 0xff
104 #define ATMEL_MPDDRC_TPR1_TXSRD_OFFSET 16
105 #define ATMEL_MPDDRC_TPR1_TXSRD_MASK 0xff
106 #define ATMEL_MPDDRC_TPR1_TXP_OFFSET 24
107 #define ATMEL_MPDDRC_TPR1_TXP_MASK 0xf
109 /* Bit field in timing parameter 2 register */
110 #define ATMEL_MPDDRC_TPR2_TXARD_OFFSET 0
111 #define ATMEL_MPDDRC_TPR2_TXARD_MASK 0xf
112 #define ATMEL_MPDDRC_TPR2_TXARDS_OFFSET 4
113 #define ATMEL_MPDDRC_TPR2_TXARDS_MASK 0xf
114 #define ATMEL_MPDDRC_TPR2_TRPA_OFFSET 8
115 #define ATMEL_MPDDRC_TPR2_TRPA_MASK 0xf
116 #define ATMEL_MPDDRC_TPR2_TRTP_OFFSET 12
117 #define ATMEL_MPDDRC_TPR2_TRTP_MASK 0x7
118 #define ATMEL_MPDDRC_TPR2_TFAW_OFFSET 16
119 #define ATMEL_MPDDRC_TPR2_TFAW_MASK 0xf
121 /* Bit field in Memory Device Register */
122 #define ATMEL_MPDDRC_MD_LPDDR_SDRAM 0x3
123 #define ATMEL_MPDDRC_MD_DDR2_SDRAM 0x6
124 #define ATMEL_MPDDRC_MD_DBW_MASK (0x1 << 4)
125 #define ATMEL_MPDDRC_MD_DBW_32_BITS (0x0 << 4)
126 #define ATMEL_MPDDRC_MD_DBW_16_BITS (0x1 << 4)